CN111301449A

CN111301449A - Piggyback transportation system for rotary loading and unloading of goods

Info

Publication number: CN111301449A
Application number: CN202010131428.5A
Authority: CN
Inventors: 李华; 吴振国; 吴荣坤; 袁博; 郑和平; 赵玉叶; 沈彩瑜
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-06-19

Abstract

The invention discloses a piggyback transportation system for rotary loading and unloading goods, which comprises a piggyback car and ground equipment, wherein the piggyback car comprises a car body, and the car body comprises a body part and a support part; the body part comprises at least one body unit, the body unit comprises two end part frames, and a separable supporting part is arranged between the two end part frames; the ground equipment comprises a rotating device, two groups of end frame lifting parts, a supporting part lifting part and two groups of slope transition devices arranged outside the track; the two groups of end frame lifting parts can respectively lift the end frames at the two ends of the supporting part; the supporting part lifting part can lift the supporting part to separate the supporting part from the two end part frames; when the support part and the end part frame are in a separation state, the rotating device can drive the support part to rotate around the rotation axis of the support part, and when the support part rotates to a preset angle, two ends of the support part can be respectively connected with the two groups of slope transition devices. The piggyback transportation system can realize rotary loading and unloading of goods, can simplify the body structure of the piggyback car, is beneficial to realizing the light weight of the body and reduces the cost.

Description

Piggyback transportation system for rotary loading and unloading of goods

Technical Field

The invention relates to the technical field of piggyback vehicles, in particular to a piggyback transportation system for rotary loading and unloading.

Background

Piggyback transportation refers to a convenient transportation mode that after goods are loaded on road vehicles such as road trucks or semi-trailers, the road vehicles automatically start piggybacks at a train station at an origin place and finish long-distance transportation through railways, and after the road vehicles reach a train station at a destination, the road vehicles can automatically start piggybacks and drive to a final destination.

The body of piggyback car can generally include the body part and separable support, while loading and unloading, can rotate and separate the support from the body part first, in order to facilitate the opening and closing of the road vehicle, after the completion of loading and unloading, can mount the support to the body part again.

In this process, how to separate the holder portion from the body portion is still a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a piggyback transportation system for rotary loading and unloading goods, which realizes rotary loading and unloading goods, can simplify the body structure of a piggyback car, is beneficial to realizing the light weight of the body and reduces the cost.

In order to solve the technical problem, the invention provides a piggyback transportation system for rotary loading and unloading goods, which comprises a piggyback car and ground equipment, wherein the piggyback car comprises a car body, and the car body comprises a body part and a support part; the body part comprises at least one body unit, the body unit comprises two end frames, and a separable supporting part is arranged between the two end frames; the ground equipment comprises a rotating device, two groups of end frame lifting parts, a supporting part lifting part and two groups of slope transition devices arranged outside the track; the two groups of end frame lifting parts can respectively lift the end frames at the two ends of the supporting part; the supporting part lifting part can lift the supporting part to separate the supporting part from the two end frames; when the support part and the end part frame are in a separation state, the rotating device can drive the support part to rotate around the rotation axis of the support part, and when the support part rotates to a preset angle, two ends of the support part can be respectively connected with the two groups of slope transition devices.

When the piggyback car reaches the preset position of a loading and unloading station, a group of end frame lifting parts are respectively arranged below the front end frame and the rear end frame of the supporting part, a supporting part lifting part is arranged below the supporting part, the end frame and the supporting part are simultaneously lifted from two ends of the supporting part through the two groups of end frame lifting parts until the bogie center plate is not stressed any more, the end frame lifting part keeps the action position unchanged, the supporting part is lifted upwards through the supporting part lifting part to be separated from the end frame, the supporting part lifting part keeps the action position unchanged, finally, the supporting part is acted by a rotating device to rotate to the preset angle around the rotation axis of the supporting part, and after two ends are respectively connected with a slope transition device, the slope transition device can form transition connection between the ground and the supporting part, so that the loading and unloading of the car are convenient.

By adopting the scheme, the end frame lifting part, the supporting part lifting part, the rotating device and the like are all ground equipment arranged on a loading and unloading station, so that the body of the rotary piggyback car does not need to be provided with the corresponding lifting part and the rotating device, and therefore, the whole structure of the piggyback car can be simplified while rotary loading and unloading are realized, the weight of the piggyback car is further reduced, and the economy is improved. In addition, all the equipment in the loading and unloading station can cooperate with different rotary piggyback car loading and unloading vehicles passing through the track, thereby improving the applicability and further reducing the cost.

Drawings

FIG. 1 is a schematic structural view of a surface installation;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a front view of a rotary load and unload piggyback transport system provided in accordance with the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of the holder rotated by a certain angle;

FIG. 6 is a schematic structural view of the holder rotated to a predetermined angle;

FIG. 7 is a schematic structural view of a vehicle body of the piggyback vehicle;

FIG. 8 is a schematic view of a tray structure;

FIG. 9 is an exploded view of FIG. 8;

FIG. 10 is an enlarged view of a portion of the upper hook of FIG. 9;

FIG. 11 is a front view of FIG. 10;

FIG. 12 is an enlarged view of a portion of FIG. 9 at A;

FIG. 13 is an enlarged view of a portion of FIG. 9 at B;

FIG. 14 is a schematic structural view of an end wall;

FIG. 15 is a schematic view of the structure of FIG. 14 from another perspective;

FIG. 16 is a connecting structure diagram of a middle wall and an inclined wall;

FIG. 17 is a schematic view of the structure of FIG. 16 from another perspective;

FIG. 18 is a block diagram of two end bogies mounted to a bogie and connected to each other;

FIG. 19 is a block diagram of the end chassis body and end connection mechanism;

FIG. 20 is a side view of the structure of FIG. 19 mounted to a truck and connected to a bracket;

FIG. 21 is an exploded view of FIG. 19;

FIG. 22 is an enlarged view of the end longitudinal support member of FIG. 19;

FIG. 23 is an enlarged view of the end lateral stop of FIG. 19;

FIG. 24 is an enlarged view of the first composition of FIG. 19;

FIG. 25 is an enlarged view of the second composition of FIG. 19;

fig. 26 is an enlarged view of the third composition of fig. 19.

FIG. 27 is an enlarged view of the third and fourth stringers of FIG. 19;

FIG. 28 is an enlarged view of the first and second bolster of FIG. 19;

FIG. 29 is an enlarged view of one of the end side bearings of FIG. 19;

FIG. 30 is an enlarged view of one of the container lock brackets of FIG. 19;

FIG. 31 is an enlarged view of a set of reinforcing panel members of FIG. 19;

FIG. 32 is a block diagram of a joint chassis;

FIG. 33 is a side view of FIG. 32 mounted to a truck and connected to a bracket;

figure 34 is a block diagram of one of the articulating chassis sections of figure 32;

FIG. 35 is another view from FIG. 34;

FIG. 36 is a block diagram of another articulating chassis section of FIG. 32;

FIG. 37 is an exploded view of FIG. 34;

FIG. 38 is an enlarged view of the longitudinal support of the joint of FIG. 37;

FIG. 39 is an enlarged view of the lateral knuckle stop of FIG. 37;

FIG. 40 is an enlarged view of the first composition of FIG. 37;

FIG. 41 is an enlarged view of the second and third articular beams of FIG. 37;

FIG. 42 is an enlarged view of one of the articulating side bearings of FIG. 37;

FIG. 43 is an enlarged view of a set of reinforcing plate members of FIG. 37;

FIG. 44 is a structural view of the first locking mechanism mounted to an end coupling hook;

FIG. 45 is a structural view of the end hitch hook, the bracket, and the first locking mechanism in a locked condition;

FIG. 46 is a side view of FIG. 45;

FIG. 47 is a side view of FIG. 45 in an unlocked state;

figure 48 is a coupling configuration diagram of the first lock body and first lock actuation beam assembly;

FIG. 49 is an exploded view of FIG. 48;

FIG. 50 is a view showing the first position-limiting portion, the second position-limiting portion and the first guide sleeve fixed to the end portion of the hook;

FIG. 51 is a view showing the structure in which the second locking mechanism is attached to the end portion connecting hook;

FIG. 52 is a structural view of the end hitch hook, the bracket, and the second latch mechanism in a locked condition;

FIG. 53 is a structural view of the end hitch hook, the bracket, and the second locking mechanism in an unlocked position;

FIG. 54 is a structural view of the second guide sleeve, the fourth position-limiting portion, and the rotary support body fixed to the end connection hook;

fig. 55 is a connection structure view of the second push beam, the coupling beam unit and the second lock body;

fig. 56 is a schematic structural view of the second connecting sleeve;

FIG. 57 is a schematic structural view of a transfer block;

FIG. 58 is a schematic view of the lock cylinder;

FIG. 59 is a structural view of the second lock body;

FIG. 60 is a schematic view of a rotary support

FIG. 61 is a view of the first lateral stop mechanism mounted to an end coupling hook;

FIG. 62 is a block diagram of one embodiment of a first lateral stop mechanism;

FIG. 63 is an exploded view of FIG. 62;

FIG. 64 is a schematic view of the structure of the pedestal;

FIG. 65 is a view showing a split structure of the first coupling beam;

FIG. 66 is a block diagram of another embodiment of the first lateral stop mechanism;

FIG. 67 is an exploded view of the coupling structure of the first stopper beam and the coupling end portion of FIG. 66;

FIG. 68 is a view showing the relative positions of the hook and the holder in the stopped state of the second lateral stop mechanism;

FIG. 69 is an enlarged partial view of FIG. 68;

FIG. 70 is a view showing the relative positions of the second transverse stop mechanism with respect to the end coupling hooks and the bracket in an unlocked state;

FIG. 71 is an enlarged view of a portion of FIG. 70;

FIG. 72 is a structural view of a second lateral stop mechanism mounted to an end coupling hook;

FIG. 73 is an exploded view of FIG. 72;

FIG. 74 is a block diagram of a brake pipe guard;

FIG. 75 is an enlarged view at C of FIG. 74;

FIG. 76 is an enlarged view at D of FIG. 74;

FIG. 77 is an enlarged view at E of FIG. 74;

FIG. 78 is a view of the brake pipe guard in the connected state of the receiver and body;

FIG. 79 is an enlarged view of the circled portion of FIG. 78;

FIG. 80 is a structural view of the brake pipe guard in a state where the holder portion and the body portion are separated;

FIG. 81 is an enlarged view of the circled portion in FIG. 80;

FIG. 82 is a structural diagram of the first and second protection limiting members disposed on the support

FIG. 83 is a view showing the structure of the first pivotal plate;

FIG. 84 is a view of the second pivotal plate;

FIG. 85 is a block diagram of a protective barrier;

FIG. 86 is a view showing the construction of the tube hanger plate;

FIG. 87 is a view showing a construction of a pipe hanger connecting plate;

FIG. 88 is a schematic view of the end frame lift in the uppermost position;

FIG. 89 is a perspective view of FIG. 88;

FIG. 90 is a perspective view of the end frame lift in the lowermost position;

FIG. 91 is a schematic view of the structure of the first mount;

FIG. 92 is a schematic view of an embodiment of a first support base;

FIG. 92a is a schematic view of another embodiment of a first support base;

FIG. 93 is a schematic view of the construction of the first push rod;

FIG. 94 is a schematic view of the first rocker structure;

FIG. 95 is a schematic view of the structure of the first support bar;

FIG. 96 is a schematic view of the tray lift in its uppermost position;

FIG. 97 is a perspective view of FIG. 96;

FIG. 98 is a perspective view of the lift of the mop in the lowermost position;

FIG. 99 is a schematic view of the structure of the second base;

FIG. 100 is a schematic view of a second support seat;

FIG. 101 is a schematic view of the structure of the pusher;

FIG. 102 is a schematic view of the construction of a second putter;

FIG. 103 is a schematic view of the structure of the second rocker;

FIG. 104 is a schematic view of the third support rod;

FIG. 105 is a schematic view of the longitudinal positioning device in an uppermost position;

FIG. 106 is a front view of FIG. 105;

FIG. 107 is a schematic view of the longitudinal positioning device in a lowermost position;

FIG. 108 is a front view of FIG. 107;

FIG. 109 is a schematic view of the third mount;

FIG. 110 is a schematic view of a third slide mount;

FIG. 111 is a schematic view of a partial structure of the longitudinal positioning device.

The reference numerals are explained below:

1a body part;

2 end underframe, 21 end underframe body, 2101 first cross beam, 2102 second cross beam, 2103 first longitudinal beam, 2104 second longitudinal beam, 2105 third longitudinal beam, 2106 fourth longitudinal beam, 2107 first sleeper beam, 2108 second sleeper beam, 2109 end draft beam, 2110 impact seat, 2111 container lock seat, 2112 end side bearing, 2113 reinforcing plate, 2114 saddle mounting seat, 2115 buffer mounting seat, 22 end connection mechanism, 221 end connection hook, 221a end groove, 221b end hook main body, 221b-1 end hook split body, 221b-2 end accommodation cavity, 221c end hook wall plate, 221d end first connection hole, 221e end second connection hole, 222 end longitudinal support, 222a end longitudinal support main body, 222b end wear plate, 223 end transverse limit piece, 223a end transverse limit groove, 223b left guide surface, 223c right guide surface;

3 joint underframe, 3a joint underframe subsection, 31 joint underframe body, 3101 first joint crossbeam, 3102 second joint crossbeam, 3103 third joint crossbeam, 3104 first joint longitudinal beam, 3105 second joint longitudinal beam, 3106 joint traction beam, 3107 first joint floor, 3108 second joint floor, 3109 joint side bearing, 3110 reinforcement plate, 32 joint connecting mechanism, 321 end connecting hook, 321a end groove, 321b knuckle hook main body, 321b-1 knuckle hook split body, 321b-2 knuckle accommodating cavity, 321c knuckle hook wall plate, 321d knuckle first connecting hole, 321e knuckle second connecting hole, 322 end longitudinal support piece, 322a end longitudinal support main body, 322b knuckle wear plate, 323 end transverse limiting piece, 323a knuckle transverse limiting groove, 323b left guide surface, 323c right guide surface, 33 knuckle and 34 knuckle bearing;

4-support part, 41 bottom wall, 411 middle wall body, 411a longitudinal beam, 411a-1 flat beam section, 411a-1 flat plate, 411a-1b reinforced beam, 411a-2 grid beam section, 411a-2a small beam, 411a-2b connecting plate, 411b transverse beam, 411b-1 rotary center plug-in part, 411b-2 longitudinal positioning block, 412 end wall body, 412a main body part, 412b connecting part, 412b-1 vertical plate part, 412b-2 side plate part, 412b-3 inclined plate part, 412c lower round shaft, 412d pressing plate, 413 inclined wall body, 42 side wall, 421 upper hook, 421a top surface section, 421b side surface section, 421c wearing plate, 422 guide limiting piece, 423 reinforcing structure, 423a middle vertical plate, 423b end vertical plate, 423c outer side plate, 423d inner side plate and 423e notch groove;

5, a locking mechanism, a 51 first lock body, a 511 locking end part, a 512 first limit end part, a 513 installation groove, a 514 second limit end part, a 52 third hinge shaft, a 521 locking installation plate, a 522 bolt, a 53 first limit part, a 54 first locking driving beam component, a 541 first push beam, a 541a first connecting sleeve, a 541b first elastic component, a 541c first supporting component, a 542 first guide sleeve, a 543 transmission beam and a 55 second limit part;

51 'lock head, 511' locking part, 512 'supporting part, 513' arc notch, 514 'supporting groove, 52' second lock body, 521 'insertion section, 522' sliding groove, 523 'large-size supporting section, 524' small-size supporting section, 53 'second locking driving beam assembly, 531' second push beam, 531a 'second connecting sleeve, 531 b' second elastic piece, 531c 'second supporting piece, 532' second guiding sleeve, 533 'connecting beam unit, 533 a' first locking connecting beam, 533b 'second locking connecting beam, 533 c' rotating block, 533c-1 'fixed hinge point, 533 c-2' first hinge point, 533c-3 'second hinge point, 54' rotating supporting body, 541 'rotating shaft part, 542' third limiting part, 543 'sliding rail, 55' fourth limiting part;

6 transverse stopping mechanisms, 61 supports, 611 through holes, 612 mounting holes, 613 stopping connecting plates, 614 guard plates, 615 stopping upper cover plates, 62 first stopping beams, 621 thick necks, 622 thin necks, 623 step surfaces, 624 first anti-loosening elements, 63 stopping driving beam assemblies, 631 first connecting beams, 6311 first driving ends, 6312 connecting ends, 631a long plate, 631a-1 strip-shaped guide holes, 631b short plate, 631b-1 penetrating holes, 631c rollers, 631d-1 rods, 631d-2 heads, 631d-3 locking nuts, 631e strip-shaped guide grooves, 631f locking elements, 631g first gaskets, 632 second connecting beams, 633 first hinge shafts, 633a mounting plates, 634 second hinge shafts, 64 third elastic elements and 65 stopping limiting elements;

61 'a second stopper beam, 611' a driving end, 612 'a stopper end, 613' a hinge shaft, 613a 'a large diameter section, 613 b' a small diameter section, 613c 'a third stopper, 613 d' a second gasket, 62 'a stopper beam, 63' a first stopper, 64 'a second stopper, 65' a fourth elastic member;

7, an end frame lifting device, a 71 first base, a 711 first slideway, a 712 first pin seat, a 713 first rolling plate, a 72 first supporting seat, a 721 second slideway, a 731 first driving piece, a 732 first locking component, a 733 first push rod, a 7331 first section, a 7332 second section, a 7333 first bend, a 7334 first V-shaped connecting piece, a 7335 first roller, a 734 first rocker, a 7341 first notch, a 7342 first shaft hole, a 74 first supporting component, a 741 first supporting rod, a 7411 first reinforcing sleeve, a 742 second supporting rod, a 75 first upper sliding shaft, a 751 first rolling sleeve, a 76 first lower sliding shaft, a 77 first unlocking part and a 78 second unlocking part;

8-support lifting device, 81 second base, 811 third slide way, 812 second pin seat, 813 second rolling plate, 82 second support seat, 821 fourth slide way, 822 mounting rack, 831 second hydraulic cylinder, 8311 second piston rod, 832 second locking component, 833 second push rod, 8331 third section, 8332 fourth section, 8333 second bend, 8334 second V-shaped connecting piece, 8335 second roller, second rocker, 8341 second notch, 8342 second shaft hole, 835 pushing piece, 8351 driving end, 8352 action end, 8353 pushing rod, 84 second support component, 841 third support rod, 8411 second reinforcing sleeve, 842 fourth support rod, 85 second upper sliding shaft, 851 second rolling sleeve, 86 second lower sliding shaft and 87 driving wheel;

9, a longitudinal positioning device, a 91 third base, a 911 fifth slideway, a 92 third sliding seat, a 921 first hinged seat, a 922 slider, a 93 third hydraulic cylinder, a 931 third piston rod, a 94 lifting part, a 95 positioning part, a 951 cross beam, a 9511 second hinged seat, a 952 positioning block, a 953 third roller, a 954 abutting plate, a 96 oscillating bar, a 97 limiting part, a 971 first connecting rod and a 972 second connecting rod;

10 brake pipe protection devices, 11 protection shells, 111C-shaped protection beams, 112 protection closing plates, 113 pipe hanger assemblies, 1131 protection partition plates, 1132 pipe hanger seat plates, 1133 pipe hanger connecting plates, 12 protection connecting pieces, 12a protection inner ends, 12b protection outer ends, 12C protection switching parts, 12d protection through holes, 121 first pivot plates, 122 second pivot plates, 123 pivot rotating shafts, 1231 limiting pins, 124 fixing shafts, 125 protection rollers, 13 first protection limiting parts, 14 magnetic parts and 15 second protection limiting parts;

20 brake pipe, 201 flange joint;

100 tracks, 200 slope transition devices, 210 limit gears, 300 rotary positioning devices, 400 rotating devices, 410 driving wheels and 420 driven wheels.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As used herein, the term "plurality" refers to an indefinite number of plural, usually more than two; and the use of the term "a" or "an" when referring to a quantity that is not uncommon does not indicate a quantitative relationship between such components.

The terms "first," "second," and the like, herein are used for convenience only to describe two or more structures or components that are the same or similar in structure, and do not denote any particular limitation on the order.

Herein, the extending direction of the railway track is taken as the longitudinal direction, that is, the front-back direction; in the installation plane of the railway track, the direction vertical to the longitudinal direction is transverse, namely the left and right directions; the direction perpendicular to the mounting plane can be called as vertical and vertical, and the vertical and vertical directions are also the up-down directions.

Referring to fig. 1-6, fig. 1 is a schematic structural view of a ground device, fig. 2 is a top view of fig. 1, fig. 3 is a front view of a piggyback transport system for rotary loading and unloading of goods provided by the present invention, fig. 4 is a top view of fig. 3, fig. 5 is a schematic structural view of a bracket rotated by a certain angle, and fig. 6 is a schematic structural view of the bracket rotated to a preset angle.

As shown in fig. 1 to 6, an embodiment of the present invention provides a piggyback transport system for rotary loading and unloading, including a piggyback car and ground equipment, where the piggyback car includes a car head, a car body, and a bogie connected to the car body, and the car body includes a body portion 1 and a support portion 4, the body portion 1 includes at least one body unit, each body unit may include two end frames, and a separable support portion 4 may be disposed between the two end frames.

The ground equipment comprises a rotating device 400, two groups of end frame lifting parts, a supporting part lifting part and two groups of slope transition devices 200, wherein the two groups of slope transition devices 200 are arranged on a side station platform outside the track 100. The two groups of end frame lifting parts are respectively arranged below the end frames at the two ends of the support part 4 and are used for simultaneously lifting the end frames at the two ends of the support part 4 so that the end frames drive the support part 4 to move upwards until the core disc of the bogie is not stressed any more; the supporting part lifting part is arranged below the supporting part 4 and used for lifting the supporting part 4 and separating the supporting part 4 from the end part frame; the rotating device 400 is used for driving the supporting part 4 to rotate to a preset angle around the rotation center of the supporting part 4 after the supporting part 4 is separated from the end frame, so that two ends of the supporting part 4 can be respectively connected with the two groups of slope transition devices 200.

In detail, referring to fig. 3-6, when the piggyback car reaches the preset position of the loading/unloading station, a set of end frame lifting portions are respectively disposed below the front and rear end frames of the supporting portion 4, a supporting portion lifting portion is disposed below the supporting portion 4, the end frames and the supporting portion 4 are simultaneously lifted from both ends of the supporting portion 4 by the two sets of end frame lifting portions until the bogie center plate is no longer stressed, the end frame lifting portions keep their action positions unchanged, the supporting portion lifting portions lift the supporting portion 4 upwards to separate from the end frames, the supporting portion lifting portions keep their action positions unchanged, the supporting portion lifting portions act on the supporting portion 4 by the rotating device 400 to rotate around its rotation axis to a preset angle, and both ends are respectively connected with the slope transition device 200, the slope transition device 200 can form transition connection between the ground and the supporting portion 4, the loading and unloading of the truck are convenient.

In this embodiment, the end frame lifting portion, the supporting portion lifting portion, and the rotating device 400 are all ground devices disposed on the loading and unloading yard, so that the body of the piggyback car does not need to be provided with the corresponding lifting portion and the rotating device 400. Moreover, each set of equipment arranged in the loading and unloading station can be matched with different rotary piggyback car loading and unloading vehicles passing through the track 100, so that the applicability is improved, and the cost is further reduced.

In the above embodiment, the ground equipment further includes a rotation positioning device 300, the rotation positioning device 300 is disposed in the track 100, and includes a lifting mechanism and a positioning shaft disposed at the top end of the lifting mechanism, and the lower end surface of the support portion 4 is provided with a rotation center insertion portion 411b-1 along the rotation axis thereof, which is adapted to the positioning shaft (see the following description for specific structure).

When the piggyback car runs to a preset position, the rotation center plug-in part 411b-1 of the support part 4 just corresponds to the positioning shaft of the rotation positioning device 300 arranged in the track 100, the positioning shaft is positioned right below the rotation center plug-in part 411b-1, the positioning shaft is lifted through the end part frame lifting part, the lifting mechanism of the rotation positioning device 300 is started to lift the positioning shaft after the support part 4 is lifted through the support part lifting part to be separated from the end part frame, so that the positioning shaft is lifted to be matched with the rotation center plug-in part 411b-1, the positioning shaft is the rotating shaft of the support part 4, and then the rotating device 400 acts on the support part 4 to rotate around the positioning shaft to a preset angle and is connected with the slope transition device 200.

After the loading and unloading car is finished, rotating device 400 acts on supporting part 4 to enable the supporting part 4 to rotate around the positioning shaft in the reverse direction until supporting part 4 rotates to a position where an angle is preset to the upper side of the end frame, then driving lifting mechanism enables the positioning shaft to descend to the original position so as not to act on supporting part 4, then supporting part 4 descends under the action of supporting part lifting portion and cooperates with the end frame, and finally the end frame drives supporting part 4 to descend to cooperate with the bogie under the action of end frame lifting portion.

Alternatively, in this embodiment, the pivot shaft may be directly provided to the body of the piggyback car, for example, a longitudinally connected bracket fixed to both end frames may be provided below the cradle 4, and the pivot shaft may be provided to the longitudinally connected bracket, so that the rotation of the cradle 4 can be realized. In comparison, in the above-mentioned scheme of providing the rotary positioning device 300 in the loading and unloading yard, the support part 4 only needs to be provided with the corresponding rotary center insertion part 411b-1, the car body does not need to be provided with a rotating shaft, and the above-mentioned longitudinally-connected bracket is not needed, so that the car body structure of the piggyback car can be further simplified, and the implementation of light weight is more facilitated, which is a preferred scheme of the embodiment of the present invention.

The rotary positioning device 300 may be provided in a region near the center in the longitudinal direction of the holder 4, in regions near both ends in the longitudinal direction of the holder 4, or in other positions as long as the rotation of the holder 4 about the positioning axis can be achieved.

In the above embodiment, the ground equipment further includes a limit stop 210 disposed on the ground, and when the holder 4 rotates to abut against the limit stop 210, it indicates that the holder 4 has rotated by the preset angle, and at this time, two ends of the holder 4 can be respectively engaged with the slope transition device 200 disposed on the ground, so that the loading and unloading operation can be performed. Or, in this embodiment, the driving action of the rotating device 400 may be controlled to stop the holder 4 after rotating a preset angle, and the rotation angle is limited by the limiting stopper 210, so that the stability is ensured while the overall structure is simplified.

The following embodiments of the present invention will be described with respect to the structures of the devices of the piggyback transport system.

Lifting part of supporting part

Referring to fig. 96-104, fig. 96 is a schematic structural view of the supporting part lifting device at the highest position, fig. 97 is a perspective view of fig. 96, fig. 98 is a perspective view of the supporting part lifting device at the lowest position, fig. 99 is a schematic structural view of the second base, fig. 100 is a schematic structural view of the second supporting seat, fig. 101 is a schematic structural view of the pushing member, fig. 102 is a schematic structural view of the second pushing rod, fig. 103 is a schematic structural view of the second rocker, and fig. 104 is a schematic structural view of the third supporting rod.

In the above embodiment, the number of the lifting portions of the supporting portions may be two, and the two lifting portions of the supporting portions may act on the two longitudinal end portions of the supporting portion 4, respectively, so that the lifting of the supporting portion 4 may be more reliable.

Each set of lifting portion may comprise a lifting portion 8 disposed in the track 100, as shown in fig. 96-98, the lifting portion 8 comprises a second base 81, a second supporting seat 82, a supporting mechanism and a driving mechanism, wherein the supporting mechanism is connected between the second base 81 and the second supporting seat 82, and the driving mechanism can act on the supporting mechanism to lift the second supporting seat 82.

In this embodiment, the upper end surface of the second support seat 82 is further provided with a rotation driving portion, the rotation driving portion is a part of the rotation device, the rotation driving portion includes two or more driving wheels 87, the number of the driving wheels 87 can be two or more, so as to improve driving stability, and the upper end surface of the driving wheel 87 abuts against the lower end surface of the holder 4 and can push the holder 4 to rotate around the rotation axis thereof. Each lifting device comprises at least two driving wheels 87, the axis extension line of each driving wheel 87 passes through the rotation center of the support part 4 and is uniformly arranged along the lower end surface of the support part 4, the upper end surface of the second supporting seat 82 is provided with a mounting frame 822 for mounting the driving wheel 87, each driving wheel 87 of the same lifting device is used for rotationally driving the support part 4 from one end, the upper end surface of each driving wheel 87 is abutted against the lower end surface of the support part 4, when the driving wheel 87 rotates, one end of the support part 4 can be driven to deflect, when the driving wheels 87 of the two lifting devices simultaneously rotate in different directions (one end is leftward and the other end is rightward), the driving wheels 87 can act on the support part 4 from two ends to rotate around the rotation axis thereof, specifically, the rotation axis can be formed by a rotation shaft arranged on the ground, and the rotation shaft is matched with the lower end surface of the support part 4, the two are not stressed in the vertical direction, and the support part 4 can rotate around the rotation shaft.

The driving mechanism is used for driving the second supporting seat 82 to ascend and descend through the supporting mechanism, and further driving the rotary driving portion to ascend and descend and to act on or separate from the lower end face of the supporting portion 4. In detail, after the lifting device of the end underframe 2 lifts the end underframe 2 and the support part 4 integrally to the center plate of the bogie without any stress, the support part lifting device 8 provided by the embodiment lifts the support part 4, specifically, the two lifting devices are arranged on the track 100 and respectively act on the support part 4 from the front end and the rear end, the second support seat 82 drives the rotary driving part to ascend to the position where the rotary driving part can cooperate with the support part 4 through the action of the driving mechanism, then the rotary driving part is started, the support part 4 is driven to rotate to a proper angle around the rotary axis of the support seat to cooperate with the inclined plane transition device on the ground, and then the loading and unloading operation is carried out.

That is to say, the supporting part lifting device 8 provided in this embodiment can drive the supporting part 4 to rotate around its rotation axis after the supporting part 4 is lifted to a preset height, and it is easy to realize that the supporting part 4 rotates between the second supporting seat 82 after being lifted, so as to reduce the requirement on the rotating device 400 for rotating the supporting part 4 in the later period, and when the supporting part 4 rotates around its rotation axis, rolling friction is formed between the supporting part 4 and the second supporting seat 82 through the driving wheel 87, so as to reduce the abrasion between the two.

Specifically, as shown in fig. 1, the number of the driving wheels 87 in this embodiment is two, and three or more driving wheels may be provided at equal intervals, so as to ensure that two lifting devices can stably support and rotationally drive the supporting portion 4 from both ends.

In the above embodiment, the support mechanism includes support portions provided below the second support base 82 and corresponding to the respective drive wheels 87. That is to say, a supporting portion is correspondingly arranged below each driving wheel 87, the number of the supporting portions is not less than that of the driving wheels 87, and since the lifting device lifts the support portion 4 by abutting the driving wheel 87 against the end portion of the support portion 4, the pressure applied to the driving wheel 87 is large, and each driving wheel 87 is correspondingly provided with a supporting portion to support the driving wheel 87, so that the strength requirement on the second supporting seat 82 can be reduced while the stability of the whole structure of the lifting device is ensured.

In the above embodiment, the second base 81 is provided with the third sliding track 811, the second supporting seat 82 is provided with the fourth sliding track 821, the supporting portion includes two sets of symmetrically arranged second supporting assemblies 84, the second supporting assembly 84 includes two supporting rods of the third supporting rod 841 and the fourth supporting rod 842 which are arranged in a crossed manner, wherein the top end of the third supporting rod 841 is hinged to the second supporting seat 82, the bottom end of the third supporting rod 841 can slide along the third sliding track 811, the bottom end of the fourth supporting rod 842 is hinged to the second base 81, the top end of the fourth supporting rod 842 can slide along the fourth sliding track 821, and the driving mechanism can act on the second supporting assembly 84 to change the included angle between the third supporting rod 841 and the fourth supporting rod 842, so as to change the height of the second supporting seat 82 from the second base 81.

When the driving assembly acts on the second support assembly 84 such that the included angle between the third support bar 841 and the fourth support bar 842 is reduced, the height of the second supporting component 84 is increased to drive the second supporting seat 82 to ascend relative to the second base 81, so as to lift the supporting part 4 of the piggyback car upwards to a preset height (original position), namely, the rotation driving operation of the support part 4 can be carried out through the rotation driving part, and after the assembly and disassembly of the support part 4 are finished, the rotation driving device reversely drives the holder 4 to rotate to the original position, the driving component acts on the second supporting component 84 to increase the included angle between the third supporting rod 841 and the fourth supporting rod 842, so that the height of the second supporting component 84 is reduced, thereby driving the second supporting seat 82 to descend relative to the second base 81 until the supporting part 4 is matched with the end underframe 2, then the end underframe 2 and the support part 4 are driven by the lifting device to descend together and to be matched with the body. Alternatively, in this embodiment, the second supporting member 84 may be configured as a scissor fork or a telescopic sleeve, and the second supporting member 84 may be configured as two crossed and relatively rotatable supporting rods to simplify the overall structure.

In the above embodiment, the driving mechanism includes the second driving element and the second locking element 832, the second driving element is disposed on the second base 81 and provides a force source for lifting, specifically, the second driving element can act on the second supporting element 84 to change an included angle between the two supporting rods, when the included angle between the two supporting rods reaches a minimum value, that is, the second supporting seat 82 rises to a highest position, the second locking element 832 can lock the relative positions of the two supporting rods, that is, the state of the second supporting element 84 is kept unchanged, so that the height position of the second supporting seat 82 is stable, the second supporting seat 82 is prevented from falling due to sudden failure of the second driving element, and the like, thereby ensuring that the lifting device can provide stable support for the end chassis 2 in the use state.

Further, the second locking assembly 832 comprises a second push rod 833 and a second rocker 834, and the second base 81 is further provided with a second pin seat 812, specifically, as shown in fig. 102, the second push rod 833 comprises a third section 8331, a second bend 8333 and a fourth section 8332 which are sequentially arranged, wherein the second bend 8333 is hinged to the second driving member, an end of the third section 8331 is hinged to a bottom end of the third supporting rod 841 and can slide along the third sliding track 811, one end of the second rocker 834 is hinged to an end of the fourth section 8332, and the other end of the second rocker 834 is hinged to the second pin seat 812; the second driving member can act on the second bend 8333 and drive the second rocker 834 to rotate around the second pin seat 812, so as to drive the bottom end of the third supporting rod 841 to slide along the third sliding channel 811, and when the included angle between the two rods reaches the minimum, the second bend 8333 is located above the second pin seat 812.

In detail, the opening of the second bend 8333 is downward, the second rocker 834 is hinged between the fourth segment 8332 and the second pin seat 812, the second driving member can act on the second bend 8333, and drives the second rocker 834 to rotate around the hinge point between the second rocker and the second pin seat 812, and further drives the second push rod 833 to rotate around the hinge point between the second bend 8333 and the second driving member, and the third segment 8331 can drive the fourth supporting rod 842 to move when rotating around the hinge point, because of the limitation of the third slideway 811, the bottom end of the third supporting rod 841 can only slide along the third slideway 811, so as to realize the change of the included angle between the two supporting rods.

When the third supporting rod 741 slides along the third sliding channel 711 to the minimum included angle between the two supporting rods, so that the second supporting seat 82 rises to the highest position, the second bend 8333 is just above the second pin seat 812, and the second driving member is no longer in action, at this time, if the second driving member fails to work and the thrust force is insufficient, the driving action of the second driving member on the second supporting assembly 84 is removed, and the bracket portion 4 continues to press down the second supporting seat 82, so that the angle between the two supporting rods tends to increase, because the opening of the second bend 8333 is downward and is located right above the second pin seat 812, at this time, the vertically downward pressure cannot move the second push rod 833 laterally, thereby limiting the rotation of the second 834 rocker 834 and the sliding of the third supporting rod 841 along the third sliding channel 811, so as to keep the state of each second supporting assembly 84 unchanged, the included angle between two bracing pieces is unchangeable promptly, the height of second supporting seat 72 is unchangeable, and stability is better.

Through the arrangement of the locking device, when the second driving member causes the second supporting seat 82 to rise to the highest position through the second supporting component 84, the automatic locking between the second supporting components 84 can be realized, in such a state, the vertical force cannot change the state of each second supporting component 84, and only when the second supporting seat 82 needs to be lowered, when the second driving member provides a reverse acting force to cause the second push rod 833 to transversely move to the second bend 8333 and disengage from the second pin seat 812, the unlocking can be realized and the bottom end of the third supporting rod 841 is driven to reversely move along the third slideway 811 until the second supporting seat 82 is lowered to the lowest state (as shown in fig. 98). The second locking assembly 832 can realize locking and unlocking while realizing lifting of the second supporting seat 82, does not need to additionally provide a locking part, can simplify the whole structure and operation, and ensures the stability and the convenience of operation of the whole structure.

In the above embodiment, the end of the third section 8331 of the second pushing rod 833 is provided with the connecting shaft, the connecting shaft is sleeved with the second roller 8335, as shown in fig. 99, the second base 81 is further provided with the second rolling plate 813, and the second roller 8335 can roll along the second rolling plate 813. Specifically, the end of the third section 8331 may be provided with a groove, and the connecting shaft is disposed between two sidewalls of the groove, or the second push rod 833 may be configured to include two second V-shaped connecting members 8334 that are disposed in parallel, the connecting shaft is disposed between the ends of the two second V-shaped connecting members 8334 facing the third section 8331, and the second roller 8335 is sleeved on the connecting shaft (as shown in fig. 102).

When the second driving member acts on the second bend 8333 to rotate the second push rod 833 around the hinge point between the second bend 8333 and the second driving member, the end of the third section 8331 of the second push rod 833 can abut against and roll through the second rolling plate of the second roller 8335 and the second base 81, so that when the lower end of the third supporting rod 841 slides along the third slideway 811, the second roller 8335 rolls along the second base 81, so that the resistance is reduced, the friction and wear between the third section 8331 and the second base 81 can be reduced, and the service life is ensured. And, the second rolling plate 813 is replaced after being worn, thereby ensuring the service life of the second base 81.

In the above embodiment, as shown in fig. 103, one end of the second rocker 834 facing the second pin seat 812 is provided with a second concave gap 8341, two sidewalls of the second concave gap 8341 and the second pin seat 812 are respectively provided with a second shaft hole 8342, and the second pin seat 812 is disposed in the second concave gap 8341 and is rotatably connected by a pin passing through the second shaft hole 8342. Or, in this embodiment, one end of the second rocker 834 may be disposed on one side of the second pin seat 812 and connected by a pin, and the second rocker 834 is disposed with a second concave gap 8341 and the second pin seat 812 is located in the second concave gap 8341, so that the connection between the two is more stable, and the situation of skew and clamping stagnation is avoided.

In the above embodiment, the driving mechanism further includes a driving member 835, and the second driving member is a second hydraulic cylinder 831, where the driving member 835 includes a driving end 8351 and an action end 8352, the driving end 8351 is connected to a second piston rod 8311 of the second hydraulic cylinder 831, the action end 8352 is provided with at least two pushing rods 8353, and each pushing rod 8353 is hinged to a bottom end of a second bend (7333) of each second pushing rod 733. That is to say, the number of the pushing rods 8353 is the same as the number of the supporting portions and the number of the driving wheels 87, when the number of the driving wheels 87 is two, the two pushing rods 8353 of the actuating end 8352 of the second pushing rod 833 are U-shaped (as shown in fig. 101), and the same second driving member drives the supporting portions to act and drive the second supporting seat 82 to lift, specifically, the number of the second hydraulic cylinders 831 may be one or two or more, and is not limited herein, and each second hydraulic cylinder 831 may act on each second supporting component 84 through the pushing member 835, so as to ensure that each second supporting component 84 can lift synchronously, and the stability is good.

Of course, in this embodiment, the second driving member may also be configured as a motor, a gear and a rack or a motor, a lead screw and a nut, which is not limited herein. And the whole structure is more stable by the driving of the second hydraulic cylinder 831.

In the above embodiment, the lifting device further includes a second upper sliding shaft 85 and a second rolling sleeve 851 sleeved outside the second upper sliding shaft 85, two sides of the second supporting seat 82 are connected to the second base 81 through the second supporting components 84 symmetrically disposed, the second upper sliding shaft 85 passes through top ends of the fourth supporting rods 842 of the second supporting components 84 symmetrically disposed and can slide along the third sliding way 811, and the second rolling sleeve 851 is located between the two fourth supporting rods 842 and is abutted against and rolled on the second supporting seat 82. That is to say, the second supporting member 84 and the second supporting seat 82 are supported by the second rolling sleeve 851 to ensure the supporting force of the second supporting member 84 between the second supporting seat 82, so that the stability is good, and meanwhile, the second rolling sleeve 851 is arranged between the two fourth supporting rods 842, so that the second supporting member 84 and the second supporting seat 82 can be limited to prevent the distance between the two supporting rods from changing and affecting the lifting of the supporting part 4.

Further, the lifting device further includes a second lower sliding shaft 86, and the second lower sliding shaft 86 passes through the bottom end of the third supporting rod 841 of the symmetrically arranged second supporting assembly 84 and the third section 8331 of the second pushing rod 833, and can slide along the third sliding track 811. The bottom end of the third supporting rod 841 can slide along the third sliding way 811 by the arrangement of the second lower sliding shaft 86, and the bottom end of the third supporting rod 841 is hinged with the end part of the third section 8331 of the second push rod 833, so that the whole structure can be simplified.

Furthermore, as shown in fig. 104, two sides of the bottom end of the third supporting rod 841 are respectively provided with a second reinforcing sleeve 8411 sleeved outside the second lower sliding shaft 86. This second enhancement sleeve 8411's setting can increase the structural strength of the bottom of third bracing piece 841, in the time of still can carry on spacingly to the bottom of this third bracing piece 841, reduces its both sides respectively with the interval between the first end of second base 81 and second push rod 833, avoids taking place the circumstances of incline, stability is good.

In the above embodiment, the second base 81 and the second supporting seat 82 are respectively provided with a side plate, and the third slide way 811 and the fourth slide way 821 are both elongated holes provided in the side plate. Alternatively, in this embodiment, the third slide way 811 and the fourth slide way 821 may be provided as a slide rail or a slide groove, and the structure of the elongated hole is relatively simple, so as to simplify the manufacturing process.

In the above embodiment, the rotating device 400 may further include two sets of power wheel sets, each set of power wheel set may drive the holder 4 to rotate to a predetermined angle from two ends, and each set of power wheel set includes a driving wheel 410 and a driven wheel 420 spaced apart from each other on the bottom surface, wherein, as shown in fig. 4, the driving wheel 410 is disposed toward one side close to the track 100, that is, after the holder 4 is rotated to a certain angle (the certain angle is smaller than the predetermined angle) around the rotation axis of the end chassis 2 relative to the end chassis 2 by the driving wheel 87 disposed on the upper end surface of the second supporting seat 82, the outer side (the front side facing the rotation direction) of the holder 4 may be rotated to be matched with the driving wheel 410 by the driving wheel 87 (the state shown in fig. 5), and then the driving wheel 410 may continue to drive the holder 4 to rotate to the upper side of the driven wheel 420 around, the support part 4 continues to rotate under the action of the driving wheel 410 to be separated from the driving wheel 87 until the preset angle is rotated to be abutted against the limit stop 210 and connected with the slope transition device 200 (as shown in fig. 6), when the support part 4 rotates to be separated from the driving wheel 87, at least one driving wheel 410 and one driven wheel 420 are arranged below the support part to ensure that at least two rollers (the driving wheel comprises the driving wheel 410 and the driven wheel 420) always support the support part 4 from one end in the rotating process, and the stability is good.

Or, in this embodiment, the specific structure of the rotating device 400 is not limited, if it can be set as a pushing device, so as to rotate around its rotation axis by pushing and pulling the holder 4 from both ends, and the driving wheel 410 and the driven wheel 420 can provide support for the holder 4 from below while driving the holder 4 to rotate, so that the rotational positioning device 300 does not need to be stressed or only bears a small force, and the stability of the whole structure is ensured.

Referring to fig. 7, fig. 7 is a schematic structural view of a body of a piggyback car.

As shown in fig. 7, in the car body of the piggyback car, the two longitudinal ends of the bracket 4 are both provided with a connecting structure, wherein the connecting structure comprises an upper hook 421 and a lower round shaft 412c extending along the transverse direction, the end part is provided with an end connecting mechanism 22, the end connecting mechanism 22 comprises an end connecting hook 221 and an end part longitudinal support piece 222, the end connecting hook 221 forms an upward hook opening, in the assembled state, the lower round shaft 412c can be hung on the hook opening of the end connecting hook 221, and the upper hook 421 can be clamped on the end part longitudinal support piece 222.

By adopting the structure, two connection points formed by the upper hook 421, the end longitudinal support piece 222, the lower circular shaft 412c and the end connection hook 221 can be arranged between the two longitudinal ends of the support part 4 and the body part 1, and the connection between the support part 4 and the body part 1 can be more reliable; and when separating, through lifting the body part 1, the body part 1 and the holder 4 can rotate relatively by using the central axis of the lower circular shaft 412c as the rotation central line, so that the connection part of the upper hook 421 and the end longitudinal connector 222 is loosened, and further the separation of the holder 4 and the body part 1 can be facilitated.

Support part

Referring to fig. 8-17, fig. 8 is a schematic structural view of a bracket, fig. 9 is an exploded view of fig. 8, fig. 10 is a partial enlarged view of an upper hook in fig. 9, fig. 11 is a front view of fig. 10, fig. 12 is a partial enlarged view of a position a in fig. 9, fig. 13 is a partial enlarged view of a position B in fig. 9, fig. 14 is a schematic structural view of an end wall, fig. 15 is a schematic structural view of fig. 14 at another viewing angle, fig. 16 is a connecting and connecting composition of a middle wall and an inclined wall, and fig. 17 is a schematic structural view of fig. 16 at another viewing angle.

As shown in fig. 8, and in conjunction with fig. 10 and 11, the fastening surface of the upper hook 421 and the end longitudinal support 222 may include a top surface section 421a and two side surface sections 421b to form a U-shaped fastening surface with a downward opening; of the two side surface sections 421b, the first may be a vertical surface, the second may be an inclined surface inclined from top to bottom in a direction away from the first, or both the two side surface sections 421b may be inclined surfaces inclined from top to bottom in a direction away from each other.

Thus, the clamping surface can form a tapered clamping opening which is gradually reduced from bottom to top, the tapered clamping opening can facilitate the clamping of the upper hook 421 and the end part longitudinal support piece 222, the clamping effect can be increased along with the approach degree of the support part 4 and the body part 1, and a connection characteristic that the lower part is the tighter can be formed; moreover, since the lower opening of the tapered snap-fitting opening is large, once the connection between the upper hook 421 and the end longitudinal support 222 is loosened, the two can be easily separated.

It should be noted that the above-mentioned scheme of the tapered clamping opening is only a preferred scheme of the embodiment of the present invention, and cannot be taken as a limitation to the implementation range of the piggyback transportation system for loading and unloading goods in a rotating manner provided by the present invention, and in a specific implementation, both the two side sections 421b may also be set to be vertical surfaces, which can also satisfy the technical effect of clamping installation with the end frame.

In the process of mounting, separating and the like of the holder 4 and the end frame, there may be friction force in the form of sliding friction, static friction and the like between the clamping surface of the upper hook 421 and the end frame, and the upper hook 421 may be worn, and for this reason, holder wear plates 421c may be provided at both side surface sections 421b to replace direct wear of the upper hook 421 by the wear of the holder wear plates 421c, which has a positive effect on improving the service life of the holder 4.

With continued reference to fig. 11, each of the holder wear plates 421c can be connected to the side section 421b by a connecting member in the form of a screw or the like, and during the installation, separation and use of the holder 4, the direction of the friction force applied to each of the holder wear plates 421c is perpendicular to the axial direction of the connecting member, which causes the connecting member to bear unnecessary shear force, and under the long-term use condition, the shear force can seriously affect the connection reliability of the holder wear plates 421 c. In fact, even if the holder wear plate 421c is fixed by welding, the above-described shearing force is applied to the weld.

In this regard, in the embodiment of the present invention, a shear-resistant stopping structure may be disposed between the holder wear plate 421c and the side surface segment 421b, so as to counteract the friction force borne by the holder wear plate 421c through the shear-resistant stopping structure, so that each connector (or weld) may be in a substantially unstressed state in the vertical direction, and the connection reliability may be higher.

In detail, the shear-resisting stopping structure may be disposed on the holder wearing plate 421c, as shown in fig. 11, the holder wearing plate 421c may be substantially L-shaped, and a transverse portion of the L-shape may abut against the side surface segment 421b, so that a friction force acting on the holder wearing plate 421c may act on the upper hook 421 through the transverse portion, thereby eliminating the above-mentioned shearing force; alternatively, the shear stop structure may be disposed on the side section 421b, such as the side section 421b located on the right side in fig. 11, the side section 421b may be provided with a notch, the tray wear plate 421c may be installed in the notch and abut against the top wall of the notch, so as to counteract the friction force borne by the tray wear plate 421c by the acting force of the top wall, and finally eliminate the shearing force.

Referring to fig. 9, the holder 4 may include a bottom wall 41 and two side walls 42 connected to the bottom wall 41, and both longitudinal ends of the two side walls 42 may be provided with upper hooks 421.

Furthermore, the side wall 42 may further be provided with a guiding limiting part 422, and the guiding limiting part 422 may be specifically arranged on the upper hook 421, and may be shaped like a plate, a block, a column, or the like, and is mainly used for cooperating with a limiting guiding part (a specific structure may be referred to as a description about the body portion 1 later) of the end frame, so as to guide the installation of the holder 4 and form a transverse limiting of the holder 4.

For example, the limiting guide of the body portion 1 may be provided with a limiting guide groove, from bottom to top, the limiting guide groove may include an equal-width groove section and a wider groove section, where the width refers to a transverse dimension, the width of the equal-width groove section may be substantially the same as the width of the guiding limiting member 422, and the width of the wider groove section may gradually increase from bottom to top, so that, by the cooperation of the guiding limiting member 422 and the wider groove section, the installation of the holder 4 may be guided to ensure the accuracy of the installation position of the holder 4, and when the guiding limiting member 422 is inserted into the equal-width groove section, the cooperation of the guiding limiting member 422 and the equal-width groove section may also laterally limit the holder 4.

The lateral surface of side wall 42 can also be equipped with additional strengthening 423 to improve the intensity of side wall 42, this additional strengthening 423 specifically can be the strengthening member of forms such as strengthening rib, reinforcing plate, perhaps, when being used for the transportation container, this additional strengthening 423 can be the installation position of container lock, so, can save the additional strengthening 423 that sets up alone, is favorable to simplifying the structure of side wall 42.

With reference to fig. 12 and 13, in an exemplary scheme, an upper cover plate of the side wall 42 may be first modified by setting an installation position of the container lock, a notched groove 423e may be provided on an outer side of the upper cover plate, an inner side plate 423d and an outer side plate 423c may be respectively provided on inner and outer sides corresponding to a position of the notched groove 423e, and a middle plate 423a and an end plate 423b connecting the inner side plate 423d and the outer side plate 423c, and the installation position in this form has an obvious reinforcing effect on the side wall 42, and may replace reinforcing members in the form of a conventional reinforcing rib, a reinforcing plate, and the like.

It is to be understood that the above description of the specific structure of the container lock mounting position is only an exemplary description of the mounting position of a specific container lock, and this is not intended to represent all types of container lock mounting positions, and in the specific implementation, if the structure of the required container lock is changed, the structure of the mounting position may be adapted, which is referred to the prior art and will not be described in detail herein.

The bottom wall 41 may include a middle wall 411 and end walls 412 located at both longitudinal sides of the middle wall 411. As shown in fig. 14 and 15, the end wall 412 may include a main body portion 412a and a connecting portion 412b, wherein the connecting portion 412b may be used to connect the main body portion 412a and the sidewall 42; in the loading and unloading process, as the road vehicle is to be opened and closed continuously, the wheels of the road vehicle are to roll the main body part 412a frequently, in order to improve the strength and the service life of the main body part 412a, the main body part 412a can adopt a box-type structure, which can ensure the strength on one hand and reduce the weight on the other hand; a lower circular shaft 412c may be installed at an end of the body portion 412a away from the middle wall 411.

The connecting portion 412b may be a C-shaped plate including a vertical plate portion 412b-1 and a side plate portion 412b-2, so that the strength of the connecting portion 412b itself may be high, and the connection reliability of the main body portion 412a and the side wall 42 may be ensured to a greater extent. Furthermore, the side plate portion 412b-2 may further include an inclined plate section 412b-3 which is inclined gradually upward from the inside to the outside, and in conjunction with fig. 14, this form of the inclined plate section 412b-3 may guide the tire of the road vehicle to ensure that the tire of the road vehicle rolls on the main body portion 412a as much as possible.

The body portion 412a may also be provided with pressure plates 412d at both lateral sides thereof, and the pressure plates 412d may be provided as driving members for driving the brake pipe guard (not shown) to rotate back when the holder 4 is dropped and mounted to the body portion.

As shown in fig. 16 and 17, the middle wall 411 may include two longitudinal beams 411a spaced apart in the transverse direction, and the two longitudinal beams 411a may be connected by a plurality of transverse beams 411b spaced apart in the longitudinal direction. Because the weight of the road vehicle is mainly transmitted through the wheels on the two transverse sides, the middle wall 411 adopting the structure can respectively bear the gravity transmitted by the wheels on the two transverse sides through the two transverse spaced longitudinal beams 411a, and the part of the transverse middle area, which does not need to be directly contacted with the wheels, can adopt a hollow structure formed by a plurality of spaced transverse beams 411b, so that the weight of the middle wall 411 is reduced.

Of course, the middle wall 411 may also be a one-piece wall, which does not affect its load-bearing function for the road vehicle.

Each longitudinal beam 411a may include a flat beam segment 411a-1 and a grid beam segment 411a-2, the flat beam segment 411a-1 may include a slab 411a-1a and a plurality of reinforcing beams 411a-1b installed at the bottom of the slab 411a-1a, and the structural forms of the reinforcing beams 411a-1b may be various, such as the scheme shown in the drawing is a combination of beams staggered in the transverse and longitudinal directions, and of course, other structures may be adopted as long as the technical effect of reinforcing the slab 411a-1a can be achieved; the grid beam section 411a-2 may then comprise a plurality of small beams 411a-2a arranged at intervals in the longitudinal direction, and two small beams 411a-2a adjacent in the longitudinal direction may be connected by connecting plates 411a-2 b.

By adopting the design, a gap is formed between two adjacent small cross beams 411a-2a of the grid beam section 411a-2, so that the installation and the covering can be conveniently carried out to limit the wheels of the road vehicle; the flat beam section 411a-1 can be used as a parking position of the support leg of the semitrailer so as to be matched with the support leg bottom plate, and further the support leg of the semitrailer can be reliably supported.

It should be noted that the embodiment of the present invention does not limit the ratio of the longitudinal beam 411a and the transverse beam 411b in the transverse direction of the middle wall 411, and at the same time, does not limit the ratio of the flat beam segment 411a-1 and the grid beam segment 411a-2 in the longitudinal direction of the longitudinal beam 411a, and in the specific implementation, a person skilled in the art can set the ratios according to actual needs.

The middle wall 411 may further be provided with a longitudinal positioning structure, specifically, the longitudinal positioning structure may include a longitudinal positioning block 411b-2, and may be installed on the transverse beam 411b, the longitudinal positioning block 411b-2 may be provided with a V-shaped or other positioning opening, and when the piggyback car is driven to a designated station and parked, a positioning device (specifically, the structure may refer to the longitudinal positioning device 9 in the following text) on the ground may interact with the positioning opening to accurately position the longitudinal position of the piggyback car, so as to facilitate the installation and separation of the tray 4.

The supporting part 4 may further be provided with a rotation center inserting part 411b-1, the rotation center inserting part 411b-1 may be a hole type or a groove type, the installation position thereof may be on the transverse beam 411b, and after the piggyback car arrives at a designated station, the positioning shaft of the aforementioned rotation positioning device 300 may be inserted into the rotation center inserting part 411b-1, and may further be used as the rotation center of the supporting part 4.

The bottom wall 41 may further include inclined walls 413 gradually inclined upward from inside to outside, and the inclined walls 413 are located at two lateral sides of the middle wall 411 and are used for connecting the middle wall 411 and the side walls 42. The inclined wall 413, which functions similarly to the inclined plate 412b-3, can be used to guide the tires of the road vehicle, so as to ensure that the tires of the road vehicle stay on the two longitudinal beams 411a as much as possible; in the embodiment of the drawings, both longitudinal ends of the inclined wall 413 may be connected to the inclined plate part 412 b-3.

Body part

Based on the above-mentioned form of the receiver 4, the embodiment of the present invention is not limited to the structure of the body portion 1 of the body of the piggyback car, as long as the end connecting mechanism 22 can be provided to match with the connecting structure of the longitudinal both ends of the receiver 4.

According to the embodiment of the invention, the vehicle body can be divided into two forms according to the number of the body units included in each section of the vehicle body:

first, as shown in fig. 7, the number of the body unit may be one, the body unit may include two end frames, the two end frames may have substantially the same structure, and hereinafter, referred to as end frames 2, a bogie may be provided below each of the two end frames 2, each of the two end frames 2 may be provided with the end connection mechanism 22, and the holder 4 may be installed between the two end frames 2.

Secondly, the number of the body units can be multiple and is limited by the axle weight, and the number of the body units of the same vehicle body is usually not more than two. Taking two as an example, two end frames of the body unit are respectively an end underframe 2 and a first joint underframe subsection 3a, wherein the two joint underframe subsections 3a of the two body units can be connected through joints to form a joint underframe 3 in a combined manner, the two joint underframe subsections 3a can be positioned between the two end underframe 2, a bogie is respectively arranged below the two end underframe 2, the lower part of the two joint underframe subsections 3a can share one bogie, and two support parts 4 can be respectively arranged between the adjacent end underframe 2 and the joint underframe subsection 3 a; therefore, the longitudinal length of each section of the vehicle body can be fully utilized, the loading requirements of the vehicle body can be met by using a small number of bogies, and the transportation cost can be effectively reduced.

For the end underframe 2, which may include the end connection mechanism 22 described above, the specific structural configuration is as shown in fig. 18-25, fig. 18 is a structural view of two end underframe mounted to a bogie and connected to each other, fig. 19 is a structural view of an end underframe body and an end connection mechanism, fig. 20 is a side view of the structure of fig. 19 mounted to a bogie and connected to a bracket, fig. 21 is an exploded view of fig. 19, fig. 22 is an enlarged view of an end longitudinal support of fig. 19, fig. 23 is an enlarged view of an end lateral stop of fig. 19, fig. 24 is an enlarged view of a first component of fig. 19, fig. 25 is an enlarged view of a second component of fig. 19, fig. 26 is an enlarged view of a third component of fig. 19, fig. 27 is an enlarged view of a third stringer and a fourth stringer of fig. 19, fig. 28 is an enlarged view of a first bolster and a second bolster of fig. 19, and fig. 29 is an enlarged view of one end side support of fig. 19, fig. 30 is an enlarged view of one of the container receptacles of fig. 19, and fig. 31 is an enlarged view of a set of reinforcement panels of fig. 19.

When there are multiple car bodies, as shown in fig. 18, two adjacent car bodies may be connected by two end chassis 2, in which the two end chassis 2 are connected by a coupler. And, each end underframe 2 is provided with a bogie thereunder, that is, one end underframe 2 is correspondingly mounted on one bogie.

Referring to fig. 19, the end connection mechanism 22 is connected to the rear end of the end chassis body 21, where the definition of front and rear is mainly determined by referring to the perspective of the drawing, and in fact, since each vehicle body includes two end chassis 2 symmetrically arranged, the front and rear, left and right positional relationships of the two end chassis 2 are actually opposite, which can be understood by referring to the labels of fig. 18.

The end connection mechanism 22 includes an end connection hook 221. The end portion coupling hook 221 has a hook opening facing upward, and an end portion groove 221a extending in the lateral direction is provided on an inner hook surface of the end portion coupling hook 221.

As shown in fig. 20, in the coupled state, the lower circular shaft 412c of the holder 4 is seated in the end groove 221a and is supported upward by the inner surface of the end groove 221a, so that the lower circular shaft 412c is supported vertically and effectively, and the inner surface of the end groove 221a also serves as a certain longitudinal limit for the lower circular shaft 412 c. Therefore, the end chassis 2 and the holder 4 have good connection reliability. Further, by applying an upward lifting force to the holder 4, the lower circular shaft 412c can be disengaged from the end groove 221a, facilitating the separation of the end chassis 2 from the holder 4.

Further, as shown in fig. 19, the end connecting mechanism 22 further includes an end longitudinal supporting member 222, and the end longitudinal supporting member 222 is located above the end connecting hook 221, specifically, directly above or obliquely above.

As shown in fig. 22, end longitudinal support 222 includes an end longitudinal support body 222a and end wear plates 222b fixed to the front and rear ends of end longitudinal support body 222 a.

As shown in fig. 8, an upper hook 421 is provided at an end of the holder 4, and a hook opening of the upper hook 421 faces downward.

As shown in fig. 20, in the connected state, the end vertical support main body 222a extends into the hook opening of the upper hook 421, and the two hook bodies are hooked together, and at the same time, the end wear plate 222b at the front end abuts against the front side of the inner hook surface of the upper hook 421, and the end wear plate 222b at the rear end abuts against the rear side of the inner hook surface of the upper hook 421, thereby performing a vertical support function on the holder 4. Thus, the connection reliability of the end underframe 2 and the support part 4 can be further improved, and the separation convenience of the end underframe 2 and the support part 4 is not influenced.

As shown in fig. 22, the upper portion of front end wear plate 222b is inclined rearward relative to the lower portion, and the upper portion of rear end wear plate 222b is inclined forward relative to the lower portion. Meanwhile, the inner surface of the end portion groove 221a forms an end portion guide surface which can guide the falling of the holder 4 at the time of mounting when being engaged with the lower circular shaft 412c, and which can also be engaged with the lower circular shaft 412c to guide the rotational separation of the holder 4 from the body portion 1.

Specifically, when the tray 4 is connected to the end chassis 2, the end guide surface may guide the lower circular shaft 412c to gradually slide into the end connection hook 221 to guide the installation of the tray 4, and when the tray 4 continuously drops, the clamping degree between the end longitudinal support body 222a and the upper hook 421 may be gradually increased, so that the upper hook 421 may firmly hook the end longitudinal support body 222 a; when the supporting part 4 and the end part chassis 2 are separated, an upward lifting force (force F in fig. 20) can be applied to a position of the end part chassis 2 close to the rear end, and when the end part chassis 2 is lifted to a certain height, the end part chassis 2 rotates counterclockwise by taking the central axis of the lower circular shaft 412c as a rotation center under the guiding action of the inner surface of the end part groove 221a, so that the end part longitudinal supporting main body 222a and the upper hook 421 are unlocked, and the end part chassis 2 and the supporting part 4 can be conveniently separated. In short, with this arrangement, the connection reliability and the separation convenience of the end chassis 2 and the tray 4 can be improved.

In the illustrated embodiment, the top of the end longitudinal support main body 222a is a trapezoid structure with a small top and a large bottom (see fig. 22), and the height position of the end wear plate 222b at the rear end is lower than that of the end wear plate 222b at the front end, so that the end chassis 2 can be ensured to smoothly rotate counterclockwise without interference. Of course, the structure for avoiding interference is not limited to this, and may be appropriately adjusted in practical implementation. In fig. 22, the end wear plate 222b is connected to the end longitudinal support body 222a by bolts and nuts, and the end longitudinal support body 222a has a hollow structure and is provided with an oblong hole at the bottom, so that the end wear plate 222b can be easily replaced.

In the illustrated embodiment, the end recess 221a is a cylindrical recess (see FIG. 19) such that its inner surface engages the cylindrical lower shaft 412c to provide the above-described guiding function, although in practice, the end recess 221a is not limited to a cylindrical recess.

Further, as shown in fig. 19, the end connecting mechanism 22 further includes an end transverse limiting member 223, the end transverse limiting member 223 is a limiting guide member disposed on the end chassis 2 and matched with the guiding limiting member 422 of the holder 4, the end transverse limiting member 223 is located above, specifically directly above or obliquely above the end connecting hook 221, and the end transverse limiting member 223 is located in front, specifically directly in front or obliquely in front of the end longitudinal support member 222.

As shown in fig. 23, the end lateral restraint member 223 includes an end lateral restraint groove 223 a.

Referring to fig. 20, in the connection state, the guiding position-limiting member 422 is inserted into the end portion transverse limiting groove 223a, and a left groove wall and a right groove wall of the end portion transverse limiting groove 223a are respectively located at left and right sides of the guiding position-limiting member 422, so as to limit the transverse position of the guiding position-limiting member 422. In this way, the reliability of connection between the end chassis 2 and the receiver 4 can be further improved.

In the illustrated embodiment, the left and/or right upper groove walls of the lateral end limiting groove 223a may be formed with left and right guide surfaces 223b and 223c (see fig. 23), respectively, the upper side of the left guide surface 223b being inclined to the left with respect to the lower side, and the upper side of the right guide surface 223c being inclined to the right with respect to the lower side, so that the guide limiting member 422 may be guided into the lateral end limiting groove 223 a.

In fig. 23, the end portion lateral limiting member 223 is composed of a U-shaped plate and two rib plates, and in practical implementation, the structure of the end portion lateral limiting member 223 is not limited thereto.

As shown in fig. 19 and 21, the end chassis body 21 includes a first cross member 2101, a second cross member 2102, a first longitudinal member 2103, a second longitudinal member 2104, a third longitudinal member 2105, a fourth longitudinal member 2106, a first bolster 2107, a second bolster 2108, an end draft beam 2109, an impact seat 2110, an end side bearing 2112, a saddle mount 2114, and a bumper mount 2115 (see fig. 26).

As shown in fig. 19, the first cross member 2101 is disposed in front of the second cross member 2102, the first longitudinal member 2103 and the second longitudinal member 2104 are fixed to rear sides of both ends of the first cross member 2101, the third longitudinal member 2105 and the fourth longitudinal member 2106 are fixed to front sides of both ends of the second cross member 2102, a rear end of the first longitudinal member 2103 and a front end of the third longitudinal member 2105 are fixed to a right end of the first bolster 2107, and a rear end of the second longitudinal member 2104 and a front end of the fourth longitudinal member 2106 are fixed to a left end of the second bolster 2108, respectively, thereby forming a frame. The end draft sill 2109 is positioned inside the frame, the front end of the end draft sill 2109 is fixed to the first beam 2101, the rear end is fixed to the second beam 2102, and the left end of the first bolster 2107 and the left end of the second bolster 2108 are fixed to the left and right sides of the end draft sill 2109, respectively. The beam-to-beam fixation may be welding. The shock mount 2110 is fixed to the front side of the first cross member 2101, and may be rivet or bolt fixed, and the shock mount 2110 is connected to a coupler to bear the impact of the coupler. The end connection 22 is fixed to the second cross member 2102, and may be welded. One end side bearing 2112 is fixed to the first bolster 2107, and the other end side bearing 2112 is fixed to the second bolster 2108, which may be welded.

As shown in fig. 24, the second cross member 2102 and the end connecting hook 221 constitute a first component. In the figure, two end connecting hooks 221 are provided, one fixed to the lower side of the left end of the second cross member 2102 and the other fixed to the lower side of the right end of the second cross member 2102. Referring to fig. 19, two end longitudinal supporting members 222 are further provided, one of which is fixed to the rear side of the left end of the second cross member 2102 and the other of which is fixed to the rear side of the right end of the second cross member 2102, and two end lateral limiting members 223 are further provided, one of which is fixed to the upper side of the left end of the second cross member 2102 and the other of which is fixed to the upper side of the right end of the second cross member 2102.

As shown in fig. 25, the first cross member 2101, the first and second

longitudinal members

2103, 2104, and the impact socket 2110 constitute a second assembly.

As shown in fig. 26, the saddle attachment seat 2114 and the damper attachment seat 2115 are fixed to the inside of the end traction beam 2109, and constitute a third configuration. The end draft sill 2109 includes a draft upper plate and a draft lower plate arranged in parallel, with a draft web arranged therebetween, the draft upper plate having a plate opening for exposing the saddle mount 2114.

As shown in fig. 27, the third longitudinal beam and the fourth longitudinal beam have the same structure, and each of the third longitudinal beam and the fourth longitudinal beam includes a trough beam with an upward notch, a cover plate covering the notch of the trough beam, and a circular tube transversely penetrating through the trough beam.

As shown in fig. 28, the first and second bolster structures are identical, each including an upper bolster plate, a lower bolster plate, two bolster webs, and two bolster partitions.

As shown in fig. 21, the two end side bearings are identical in structure. As shown in fig. 29, the end side bearing comprises a side bearing bottom plate, three side bearing vertical plates, a side bearing adjusting shim plate and a side bearing wear plate. The three side bearing vertical plates are connected above the side bearing bottom plate and are connected in an I shape. The side bearing adjusting backing plate is connected below the side bearing bottom plate, the side bearing wearing plate is connected below the side bearing adjusting backing plate, and the side bearing adjusting backing plate, the side bearing wearing plate and the side bearing wearing plate are connected together through bolts, nuts and washers.

Further, as shown in fig. 19, the end chassis body 21 further includes two container locking sockets 2111. One container lock seat 2111 is fixed to the upper sides of the third longitudinal beam 2105, the first sleeper beam 2107 and the second cross beam 2102, and the other container lock seat 2111 is fixed to the upper sides of the fourth longitudinal beam 2106, the second sleeper beam 2108 and the second cross beam 2102, and may be welded and fixed specifically. In the figure, the two container locking sockets 2111 have the same structure.

As shown in fig. 30, the container lock seat 2111 includes a horizontally disposed container bottom plate, vertical container vertical plates connected to the left and right sides of the container bottom plate, and three horizontal container vertical plates connected between the two vertical container vertical plates, one horizontal container vertical plate is located at the end of the container bottom plate, and the other two horizontal container vertical plates are located in the middle of the container bottom plate. And a rib plate is arranged between the two transverse containerized vertical plates and the containerized bottom plate at the middle part and is positioned between the two transverse containerized vertical plates at the middle part.

Further, as shown in fig. 21, the end chassis body 21 further includes a reinforcing plate 2113. In fig. 21, two sets of stiffening plates 2113 are provided, one set connected between the second cross beam 2102 and the third longitudinal beam 2105 and the other set connected between the second cross beam 2102 and the fourth longitudinal beam 2106. The two sets of stiffening assemblies 2113 are identical in structure. As shown in fig. 31, each set of reinforcement assemblies 2113 includes one transverse rib and two triangular ribs.

The structure of the articulated chassis 3 has certain similarities with the end chassis 2, in particular at the end connection 22, as can be seen in particular in figures 32-43, FIG. 32 is a structural view of an articulated chassis, FIG. 33 is a side view of FIG. 32 attached to a truck and coupled to a bracket, fig. 34 is a block diagram of one of the articulating chassis sections of fig. 32, fig. 35 is another view of fig. 34, fig. 36 is a block diagram of another articulating chassis section of fig. 32, fig. 37 is an exploded view of fig. 34, figure 38 is an enlarged view of the joint longitudinal support of figure 37, figure 39 is an enlarged view of the joint lateral stop of figure 37, FIG. 40 is an enlarged view of the first component of FIG. 37, FIG. 41 is an enlarged view of the second and third articular beams of FIG. 37, figure 42 is an enlarged view of one of the articular side bearings of figure 37 and figure 43 is an enlarged view of one of the set of reinforcement plates of figure 37.

As shown in fig. 32, the joint chassis section 3a includes a joint chassis body 31, a joint connection mechanism 32, and a joint 33, and the joint connection mechanism 32 is an end connection mechanism 3 attached to the joint chassis 3 and fixed to the rear end of the joint chassis body 31, and the joint 33 is fixed to the front end of the joint chassis body 31. The two joint chassis sections 3a have their ends close to each other as front ends thereof, and have their ends far from each other as rear ends thereof. During the application, the joints 33 of the two joint chassis subsections 3a are connected through joint bearings, and in the connected state, the two joint chassis subsections 3a can rotate around the transverse direction and the vertical direction so as to adapt to the flexible requirements when the vehicle turns and walks on a slope.

As shown in fig. 33, in application, each joint underframe section 3a is connected with one support part 4, so that two adjacent support parts 4 are connected through the joint underframe 3, and a bogie is arranged below the two joint underframe sections 3a, that is, two joint underframe sections 3a (one joint underframe 3) are correspondingly arranged on one bogie.

As shown in fig. 34 and 36, the joints 33 of the two joint chassis sections 3a have different structures, and the joint 33 of one joint chassis section 3a is a female joint, and the joint of the other joint chassis section 3a is a male joint, and in the connected state, the male joint extends into the female joint, and is rotatably connected.

The joint connecting mechanisms 32 of the two joint chassis sections 3a have the same structure and the joint chassis main bodies 31 have the same structure, and in the connected state, the joint connecting mechanisms 32 of the two joint chassis sections are laterally symmetrical to each other and the joint chassis main bodies 31 of the two joint chassis sections are laterally symmetrical to each other. Next, a specific structure of the joint coupling mechanism 32 will be described, and a specific structure of the joint chassis body 31 will be described.

As shown in fig. 34, the articulation mechanism 32 includes an articulation hook 321. The opening of the knuckle joint hook 321 faces upward, and a knuckle groove 321a extending in the transverse direction is formed on the inner hook surface of the knuckle joint hook 321.

As shown in fig. 33, in the coupled state, the lower circular shaft 412c of the holder 4 is seated in the joint groove 321a, and is supported upward by the upward supporting force from the inner surface of the joint groove 321a, so that the lower circular shaft 412c is supported in the vertical direction, and the inner surface of the joint groove 321a also serves as a certain longitudinal limit. Therefore, the joint underframe 3 and the support part 4 have better connection reliability. Moreover, by applying an upward lifting force to the holder 4, the lower circular shaft 412c can be disengaged from the joint groove 321a, facilitating the separation of the joint chassis 3 from the holder 4.

Further, as shown in fig. 34, the joint connecting mechanism 32 further includes a joint longitudinal supporting member 322, and the joint longitudinal supporting member 322 is located above the joint connecting hook 321, specifically, directly above or obliquely above.

As shown in fig. 38, the joint longitudinal support 322 includes a joint longitudinal support body 322a and joint wear plates 322b fixed to the front and rear ends of the joint longitudinal support body 322 a.

As shown in fig. 8, an upper hook 421 is provided on the upper side of the end of the holder 4, and the hook opening of the upper hook 421 faces downward.

As shown in fig. 33, in the coupled state, the end vertical support main body 322a extends into the hook opening of the upper hook 421, and the two hook members are hooked together, and the joint wear plate 322b at the front end abuts against the front side of the inner hook surface of the upper hook 421, and the joint wear plate 322b at the rear end abuts against the rear side of the inner hook surface of the upper hook 421, thereby supporting the holder 4 in the vertical direction. Therefore, the connection reliability of the joint underframe 3 and the support part 4 can be further improved, and the separation convenience of the joint underframe 3 and the support part 4 is not influenced.

As shown in fig. 38, the upper portion of the front joint wear plate 322b is inclined rearward relative to the lower portion, and the upper portion of the rear joint wear plate 322b is inclined forward relative to the lower portion. Meanwhile, the inner surface of the joint groove 321a forms a joint guide surface which can guide the falling of the holder 4 in mounting when engaged with the lower circular shaft 412c, and which can also be engaged with the lower circular shaft 412c to guide the rotational separation of the holder 4 from the joint chassis 3.

Specifically, when the holder 4 is connected to the joint chassis 3, the joint guide surface may guide the lower circular shaft 412c to gradually slide into the joint connecting hook 321 to guide the installation of the holder 4, and when the holder 4 continuously drops, the clamping degree between the joint longitudinal support body 322a and the upper hook 421 may be gradually increased, so that the upper hook 421 may firmly hook the joint longitudinal support body 322 a; when the supporting part 4 and the joint chassis 3 are separated, an upward lifting force (force F in fig. 33) can be applied to the position of the joint chassis 3 near the rear end, and when the joint chassis 3 is lifted to a certain height, the joint chassis 3 rotates by taking the central axis of the lower circular shaft 412c as a rotation center under the guiding action of the inner surface of the joint groove 321a, so that the joint longitudinal supporting main body 322a and the upper hook 421 are unlocked, and the joint chassis 3 and the supporting part 4 can be conveniently separated. In short, with this arrangement, the connection reliability and the separation convenience of the joint underframe 3 and the holder 4 can be improved.

In the illustrated embodiment, the top of the joint longitudinal support main body 322a is a trapezoid structure with a small top and a large bottom (see fig. 38), and the height position of the joint wear plate 322b at the rear end is lower than the height position of the joint wear plate 322b at the front end, so that the joint chassis section 3a can be smoothly rotated in the transverse direction without interference. Of course, the structure for avoiding interference is not limited to this, and may be adjusted appropriately in actual implementation. In fig. 38, the joint wear plate 322b is connected to the joint longitudinal support main body 322a by bolts and nuts, and the joint longitudinal support main body 322a has a hollow structure and is provided with an oblong hole at the bottom, so that the joint wear plate 322b can be replaced easily.

In the illustrated embodiment, the joint recess 321a is a cylindrical recess (see fig. 34), so that the inner surface thereof can serve as the guide when being engaged with the cylindrical lower shaft 412c, but the joint recess 321a is not limited to the cylindrical recess in practical implementation.

Further, as shown in fig. 34, the joint connecting mechanism 32 further includes a joint transverse limiting member 323, the joint transverse limiting member 323 is a limiting guiding member disposed on the joint base frame 3 and matching with the guiding limiting member 422 of the holder 4, the joint transverse limiting member 323 is located above, specifically directly above or obliquely above the joint connecting hook 321, and the joint transverse limiting member 323 is located in front of, specifically directly in front of or obliquely in front of the joint longitudinal support member 322.

As shown in fig. 39, the joint lateral restraint 323 includes a joint lateral restraint groove 323 a.

As shown in fig. 33, in the connected state, the guide limiting member 422 is inserted into the joint transverse limiting groove 323a, and the left groove wall and the right groove wall of the joint transverse limiting groove 323a are respectively located at the left and right sides of the guide limiting member 422 to limit the transverse position of the guide limiting member 422. In this way, the reliability of connection between the joint chassis 3 and the receiver 4 can be further improved.

In the illustrated embodiment, a left guide surface 323b and a right guide surface 323c (see fig. 39) are formed on the upper portion of the left groove wall and/or the upper portion of the right groove wall of the joint transverse limiting groove 323a, respectively, and the upper side of the left guide surface 323b is inclined to the left with respect to the lower side thereof and the upper side of the right guide surface 323c is inclined to the right with respect to the lower side thereof, so that the guide limiting member 422 is guided into the joint transverse limiting groove 323 a.

In fig. 39, the joint transverse limiting member 323 is composed of a U-shaped plate and two rib plates, and in practical implementation, the structure of the joint transverse limiting member 323 is not limited thereto.

As shown in fig. 34 and 35, the joint chassis body 31 includes a first joint cross member 3101, a second joint cross member 3102, a third joint cross member 3103, a first joint longitudinal member 3104, a second joint longitudinal member 3105, a joint traction member 3106, a first joint floor 3107, and a second joint floor 3108.

The first joint cross beam 3101 is arranged behind the second joint cross beam 3102 and the third joint cross beam 3103, the left end of the first joint cross beam 3101 is fixed with the left end of the second joint cross beam 3102 through the first joint longitudinal beam 3104, the right end of the first joint cross beam 3101 is fixed with the right end of the third joint cross beam 3103 through the second joint longitudinal beam 3105, and the right end of the second joint cross beam 3102 and the left end of the third joint cross beam 3103 are fixed with the front end of the joint traction beam 3106, respectively, so as to form a joint frame; the rear end of the joint traction beam 3106 is fixed to the first joint beam 3101; the beam-to-beam fixation may be welding. The joint 33 is fixed to the front end of the joint traction beam 3106, and may be welded.

The first joint floor 3107 and the second joint floor 3108 are covered on the top frame opening of the joint frame and are respectively positioned at the left and right sides of the joint traction beam 3106, the first joint floor 3107 is fixed on the second joint cross beam 3102, the first joint longitudinal beam 3104 and the joint traction beam 3106, and the second joint floor 3108 is fixed on the third joint cross beam 3103, the second joint longitudinal beam 3105 and the joint traction beam 3106, which may be welded and fixed.

As shown in fig. 40, the first joint beam 3101 and the joint coupling hook 321 constitute a first component. In the figure, two joint connection hooks 321 are provided, one of which is fixed to the lower side of the left end of the first joint beam 3101 and the other of which is fixed to the lower side of the right end of the first joint beam 3101. Referring to fig. 34, two joint longitudinal supports 322 are further provided, one being fixed to the rear side of the left end of the first joint beam 3101, and the other being fixed to the rear side of the right end of the first joint beam 3101; two joint lateral stoppers 323 are also provided, one fixed to the left end upper side of the first joint beam 3101 and the other fixed to the right end upper side of the first joint beam 3101.

In a specific embodiment, the second joint beam 3102 and the third joint beam 3103 have the same structure, and each of them includes a bottom plate, double webs, and a partition plate disposed between the double webs (see fig. 41). The first and second articulated

stringers

3104, 3105 are identical in construction and are each channel beams with their notches facing upwards (see fig. 37). The first joint floor 3107 and the second joint floor 3108 have the same structure, and are both plate structures with a hole in the center. The knuckle traction beam 3106 includes a traction upper deck and a traction lower deck with a traction riser disposed therebetween.

Further, as shown in fig. 34, the joint chassis body further includes two joint side bearings 3109, the two joint side bearings 3109 are respectively located on the left and right sides of the joint 33, one joint side bearing 3109 is fixed on the front side of the second joint beam 3102, and the other joint side bearing 3109 is fixed on the front side of the third joint beam 3103. In a specific embodiment, the two articular side bearings 3109 have the same structure. As shown in fig. 42, the articulated side bearing includes a side bearing lower cover plate, a side bearing upper cover plate, and a side bearing riser plate disposed therebetween.

Further, as shown in fig. 34, the joint chassis body 31 further includes a reinforcing plate 3110. In a specific embodiment, two sets of stiffening plates 3110 (see fig. 37) are provided, one set of stiffening plates 3110 being fixed between the first joint floor 3107 and the first joint beam 3101, and the other set of stiffening plates being fixed between the second joint floor 3108 and the first joint beam 3101. As shown in fig. 43, each set of reinforcement assemblies 3110 includes one transverse rib and two triangular ribs.

The end chassis 2 and the joint chassis 3 may be respectively provided with a locking mechanism 5, the locking mechanism 5 may lock or unlock the vertical holding part 4 and the body part 1, and the installation positions of the locking mechanism 5 on the end chassis 2 and the joint chassis 3 are similar.

In the end chassis 2, referring to fig. 24, the end connection hook 221 includes an end hook main body 221b, and the end hook main body 221b includes two end hook sub-bodies 221b-1 arranged at a spacing in the lateral direction and an end accommodation cavity 221b-2 formed between the two end hook sub-bodies 221b-1, and the locking mechanism 4 may be installed in the end accommodation cavity 221 b-2. In fig. 24, the end hook 221 further includes an end hook wall 221c covering the outer hook surface of the end hook main body 221b, the end hook wall 221c is provided with an end first connection hole 221d, the end first connection hole 221d is communicated with the end accommodation cavity 221b-2, so that the unlocking member can extend into the end accommodation cavity 221b-2 through the end first connection hole 221d to unlock the locking mechanism, and after unlocking, the holder 4 can be separated from the end chassis 2. In fig. 20, the end portion connection hook 221 is further provided with an end portion second connection hole 221 e.

In the knuckle chassis 3, the knuckle connection hook 321 includes a knuckle hook body 321b, and the knuckle hook body 321b includes two knuckle hook sub-bodies 321b-1 arranged at a spacing in the lateral direction and a knuckle receiving cavity 321b-2 formed between the two knuckle hook sub-bodies 321b-1, and the locking mechanism 5 may be installed in the knuckle receiving cavity 321 b-2. In fig. 40, the joint coupling hook 321 further includes a joint hook wall plate 321c covering the outer hook surface of the joint hook main body 321b, the joint hook wall plate 321c is provided with a joint first connection hole 321d, and the joint first connection hole 321d is communicated with the joint accommodating cavity 321b-2, so that the unlocking component can extend into the joint accommodating cavity 321b-2 through the joint first connection hole 321d to unlock the locking mechanism, and after unlocking, the holder 4 can be separated from the joint chassis 3.

Since the locking mechanism is similar in the mounting structure of the end chassis 2 and the joint chassis 3, the following description of the specific structure of the locking mechanism will be given by taking the locking mechanism mounted on the end chassis 2 as an example, and for the locking mechanism 5, the embodiment of the present invention provides two structures of the locking mechanism 5.

Fig. 44 to 50 can be referred to for the first lock mechanism 5, fig. 44 is a structural view of the first lock mechanism mounted on the end coupler, fig. 45 is a structural view of the end coupler, the holder, and the first lock mechanism in a locked state, fig. 46 is a side view of fig. 45, fig. 47 is a side view of fig. 45 in an unlocked state, fig. 48 is a connection structural view of the first lock body and the first lock driving beam assembly, fig. 49 is an exploded view of fig. 48, and fig. 50 is a structural view of the first stopper, the second stopper, and the first guide bush fixed to the end coupler.

As shown in fig. 44-46, the locking mechanism 5 includes: the first lock body 51 is hinged with the end connecting hook 221 through a third hinge shaft 52, one end of the first lock body 51 is a locking end 511, the other end is a first limiting end 512, and the third hinge shaft 52 is positioned between the locking end 511 and the first limiting end 512; a first stopper portion 53, the first stopper portion 53 being fixed in the end receiving cavity 221b-2 (see fig. 50);

a first lock actuator beam assembly 54 connected to the first lock body 51;

in the locked state, as shown in fig. 46, the first stopper end 512 abuts against the first stopper 53 from top to bottom, and the locking end 511 abuts against the holder 4 to lock the holder 4; in the unlocked state, as shown in fig. 47, the first locking driving beam assembly 54 can drive the first limiting end 512 to be separated from the first limiting portion 53 from the bottom to the top, and the locking end 511 is rotated to be separated from the holder 4.

With such a structure, as shown in fig. 46 and 47, when locking, if there is a separation trend between the holder 4 and the end connecting hook 221, the holder 4 will generate an upward force on the locking end 511 to drive the locking end 511 to rotate counterclockwise, and due to the bottom-up supporting force generated by the first limiting part 53 on the first limiting end 512, the first lock body 51 can be prevented from rotating counterclockwise, so that the position of the locking end 511 can be ensured to be unchanged, and the holder 4 can be reliably locked; when the lock is unlocked, the first locking driving beam assembly 54 can drive the first limiting end 512 to be separated from the first limiting portion 53 from the bottom to the top, the first lock body 51 can rotate clockwise, the rotating direction of the first locking driving beam assembly is opposite to the stopping direction of the first limiting portion 53, the locking end 511 and the support portion 4 can be separated smoothly, the support portion 4 can be unlocked smoothly, and the separation of the support portion 4 and the end connecting hook 221 is not affected.

Here, the embodiment of the present invention does not limit the structure of the first stopper 53, and may be plate-shaped or block-shaped; similarly, the embodiment of the present invention also does not limit the number of the first limiting portions 53, and may include one limiting member or a plurality of mutually independent limiting members, as long as the above-mentioned technical effects can be achieved.

In a detailed embodiment, as shown in fig. 48, the first locking driving beam assembly 54 may include a first push beam 541, a first guide sleeve 542, and a driving beam 543, the first guide sleeve 542 is fixed in the end receiving cavity 221b-2 (refer to fig. 50), the first push beam 541 is slidably connected to the first guide sleeve 542, one end of the driving beam 543 may be hinged to the first locking body 51, and the other end of the driving beam 543 may be hinged to the first push beam 541.

In this way, when the first push beam 541 is moved upward by a driving force, the driving beam 543, which is hinged to the first push beam 541, may convert the linear motion of the first push beam 541 into a rotational motion of the first lock body 51, so as to transmit the unlocking driving force to the first lock body 51, and thus, the first lock body 51 can be unlocked; when the driving force disappears, the first push beam 541 can automatically slide down along the first guide sleeve 542 by means of its own gravity, and drive the first lock body 51 to rotate in the reverse direction, so as to realize the automatic locking of the first lock body 51, or of course, the first push beam 541 can be driven to reset and lock by the driving force in the reverse direction provided by an external device.

Specifically, the first push beam 541 may face the end first connection hole 221d (refer to fig. 46 and 47) so that the unlocking member can contact the first push beam 541 through the end first connection hole 221d, thereby applying an upward unlocking driving force to the first push beam 541.

It should be noted that the embodiment of the present invention does not limit the source of the driving force received by the first push beam 541 during unlocking, and a manual driving scheme may be adopted, for example, an unlocking member such as an unlocking lever may be provided, and when unlocking is required, an operator may manually operate the unlocking member to generate a driving force for the first push beam 541; alternatively, an automatic driving scheme may be adopted, in this case, the power source may be a motor, an air cylinder, an oil cylinder, or the like, the power source may be mounted on the vehicle body, or may be mounted on the ground equipment, which may be specifically selected according to the actual situation, and a transmission mechanism may be further disposed between the power source and the first push beam 541 to transmit the driving force of the power source.

The beam section of the first push beam 541 above the first guiding sleeve 542 may further be provided with a first connecting sleeve 541a, as shown in fig. 49, the first connecting sleeve 541a may be specifically a U-shaped plate, a bottom plate portion of the U-shaped plate may be connected to the first push beam 541 and may form a support with the first guiding sleeve 542 to serve as a limiting component for downward movement of the first push beam 541, and the transmission beam 543 may be hinged between two side plate portions of the U-shaped plate.

In fact, the downward movement limitation of the first push beam 541 can also be realized by the cooperation of the first limitation end 512 and the first limitation portion 53, and thus, the first connection sleeve 541a may not exist; alternatively, the driving beam 543 may be used for limiting, the driving beam 543 and the first pushing beam 541 are hinged, and the driving beam 543 and the first pushing beam 541 are usually disposed at an included angle in the actual working process, and the driving beam 543 may also be used as a limiting component for the downward movement of the first pushing beam 541.

In the above-mentioned solution, the linear motion of the first push beam 541 is converted into the rotational motion of the first lock body 51 through the transmission beam 543, and in fact, other solutions may be adopted besides this solution, for example, a guide hole may be provided in the first lock body 51, the first push beam 541 may be hinged in the guide hole, and when the first push beam 541 generates the axial displacement, the hinge shaft of the first push beam 541 may slide in the guide hole to naturally drive the first lock body 51 to rotate, so that the conversion from the linear motion to the rotational motion may also be realized.

Further, the locking mechanism 5 may further include a first elastic member 541b, one end of the first elastic member 541b may interact with the first push beam 541, and the unlocking process is a process of increasing a deformation amount of the first elastic member 541b to gather an elastic force. With this arrangement, when the driving force applied to the first push beam 541 disappears, the elastic force of the first elastic member 541b can be released to cooperate with the gravity of the first push beam 541 itself to drive the first lock 51 to reset and lock.

Specifically, the first elastic element 541b may be a spring, which may be sleeved on the first push beam 541, and the lower end of the first push beam 541 may be provided with a first supporting element 541c, and two ends of the spring may respectively interact with the first guide sleeve 542 and the first supporting element 541 c. The first push beam 541 can serve as a spring column, so that the radial play of a spring in the expansion process can be prevented, and the positive effects of improving the structural stability and the power transmission reliability are achieved; with this structure, in the unlocked state, the first push beam 541 can be displaced upward and the first elastic member 541b can be compressed, and when the locking is restored, the first push beam 541 can be displaced downward and the first elastic member 541b can be released.

In fact, in the locked state, the first elastic member 541b may have a certain pre-compression amount, that is, the first elastic member 541b may still provide a certain elastic force when being locked, which has a positive effect on ensuring the stable locked state of the first lock body 51, and may avoid the automatic unlocking of the first lock body 51 when the rail vehicle passes through a curve.

To conveniently adjust the pre-compression amount, the first supporting member 541c may be a nut, so that the distance between the first supporting member 541c and the first guide sleeve 542 may be adjusted by changing the screwing position of the nut, and the pre-compression amount of the first elastic member 541b in the locked state may be adjusted.

In the unlocked state, the first elastic element 541b may also be in a stretched state, and at this time, the installation position of the first elastic element 541b may be changed, and specifically, it may be disposed between the first connection sleeve 541a and the first guide sleeve 542, and both ends of it may be fixedly connected to the first connection sleeve 541a and the first guide sleeve 542, so as to transmit the pulling force.

The first lock body 51 may be provided with a mounting groove 513, and the driving beam 543 may be hinged in the mounting groove 513, so that the thickness of the locking mechanism in the axial direction of the hinge shaft of the driving beam 543 and the first lock body 51 may be small, and the entire structure may be more compact. Besides, the installation groove 513 can be arranged in the transmission beam 543, and then the first lock body 51 can be hinged in the installation groove 513 of the transmission beam 543; alternatively, the mounting groove 513 may not be provided, and in this case, the thickness of the assembly formed by the driving beam 543 and the first lock body 51 in the axial direction of the hinge shaft of the driving beam 543 and the first lock body 51 may be relatively large.

Further, the locking mechanism 5 may further include a second limiting portion 55 fixedly disposed, and the second limiting portion 55 may be fixed in the end receiving cavity 221b-2, and the structure and the like thereof may be similar to those of the first limiting portion 53, and will not be described repeatedly herein; the first lock body 51 may further include a second limiting end 514, and in the locked state, the second limiting end 514 may abut against the second limiting portion 55 from bottom to top.

In this way, in the locked state, the first lock body 51 can form a three-point support scheme, the stress on the first lock body 51 is more balanced, and the first lock body 51 is more reliably locked on the holder 4.

In detail, the first lock body 51 may include two angled lock arms, which may form a substantially L-shape, and the third hinge shaft 52 may be disposed at a connection of the two lock arms, i.e., a corner of the L-shape, wherein an end of one lock arm away from the third hinge shaft 52 may be the lock end 511, and an end of the other lock arm away from the third hinge shaft 52 may be the first limit end 512; a small included angle (<180 degrees) and a large included angle (>180 degrees) are formed between the two locking arms, wherein the side where the small included angle is located is an inner end portion of the connection, the side where the large included angle is located is an outer end portion of the connection, and the outer end portion can be used as the second limiting end portion 514.

Referring to fig. 46, in the locked state, the first position-limiting portion 53 may generate a bottom-up supporting force for the first position-limiting end 512, the second position-limiting portion 55 may generate a top-down supporting force for the second position-limiting end 514, and the force applied to the first lock body 51 may be more balanced by the upward thrust generated by the holder portion 4 for the locking end 511; moreover, through the interaction of the three force points, the third hinge shaft 52 is substantially in an unstressed state, which has a positive effect on ensuring the reliability of the locking mechanism.

In the locking mechanism 5 of the above-described aspect, in addition to the mounting support point formed by the first guide sleeve 542, the first limiting portion 53, and the second limiting portion 55, the third hinge shaft 52 may also be used as a mounting support point, specifically, referring to fig. 49, an insertion groove may be provided on an outer wall of the third hinge shaft 52, a locking mounting plate 521 may be provided in the insertion groove (the connection manner between the locking mounting plate 521 and the third hinge shaft 52 may also be directly welded), the locking mounting plate 521 may be connected to the end connecting hook 221 by a connecting member in the form of a bolt 522, or the locking mounting plate 521 and the end connecting hook 221 may be fixedly connected by welding or the like in addition to the bolt connection.

Fig. 51 to 54 can be referred to for the structure of the second locking mechanism 5, fig. 51 is a structural view of the second locking mechanism mounted on the end connecting hook, fig. 52 is a structural view of the end connecting hook, the holder and the second locking mechanism in the locked state, fig. 53 is a structural view of the end connecting hook, the holder and the second locking mechanism in the unlocked state, fig. 54 is a structural view of the second guide sleeve, the fourth limiting portion and the rotary support fixed on the end connecting hook, fig. 55 is a structural view of the connection of the second push beam with the coupling beam unit and the second lock body, fig. 56 is a structural view of the second connection sleeve, fig. 57 is a structural view of the transfer block, fig. 58 is a structural view of the lock head, fig. 59 is a structural view of the second lock body, and fig. 60 is a structural view of the rotary support body.

When the locking mechanism 5 is locked, the support part 4 and the end connecting hook 221 can be locked vertically so as to ensure reliable connection between the support part and the end connecting hook and driving safety, and when the locking mechanism is unlocked, the convenience of separation of the support part 4 and the end connecting hook 221 is not influenced.

As shown in fig. 51 to 54, the locking mechanism 5 includes: a locking head 51 'rotatably coupled to the end connection hook 221, the locking head 51' being provided with a locking portion 511 'and a supporting portion 512' at both sides of a rotation center line thereof, respectively; a second latch body 52 ', the second latch body 52' being slidably coupled to the end coupling hook 221; a second lock actuation beam assembly 53 'in driving connection with the second lock body 52'; in the locked state, the second lock body 52 ' is supported with the support part 512 ' from bottom to top, so that the locking part 511 ' presses the holding part; in the unlocked state, the second locking driving beam assembly 53 ' can drive the second lock body 52 ' to displace in a direction away from the lock head 51 ', and the supporting portion 512 ' can rotate downward around the rotation center line, so that the locking portion 511 ' rotates upward to be disengaged from the bracket portion.

With such a structure, referring to fig. 52, in the locked state, if the holder part and the end connecting hook 221 are separated from each other, the holder part will generate an upward force on the locking part 511 'to drive the lock head 51' to rotate counterclockwise, and due to the bottom-to-top supporting force generated by the second lock body 52 'on the supporting part 512', the lock head 51 'can be prevented from rotating counterclockwise, so that the position of the locking part 511' can be ensured to be unchanged, and the holder part 4 can be reliably locked; referring to fig. 53, when unlocking, the second locking driving beam assembly 53 ' may drive the second lock body 52 ' to slide in a direction away from the locking head 51 ', the supporting portion 512 ' may rotate downward around the rotation center line, and the locking portion 511 ' may rotate upward to unlock the holder without affecting the separation of the holder 4 from the end connection hook 221.

The above-mentioned rotation setting of the locking head 51 'may be specifically a hinge setting, in which case a hinge shaft may be provided for the locking head 51', the hinge shaft may be fixed to the end connection hook 221, and be located between the locking portion 511 'and the supporting portion 512'. Alternatively, a rotation support 54 'may be further provided, the rotation support 54' may be fixed to the end connection hook 221, and may have a rotation shaft 541 ', the rotation shaft 541' has an arc-shaped cylindrical surface, and the lock head 51 may have an arc-shaped notch 513 'matching with the rotation shaft 541', where matching means that the outer diameter of the rotation shaft 541 'substantially coincides with the inner diameter of the arc-shaped notch 513'. During assembly, the lock head 51 ' can be inserted into the rotating shaft 541 ' through the arc notch 513 ' and can rotate with the central axis of the rotating shaft 541 ' as the rotation center line, so that the lock head 51 ' can also be rotatably arranged.

When unlocking, the rotation of the lock head 51 ' can be realized by means of the offset of the center of gravity, the center of gravity of the lock head 51 ' can be deviated from the rotation center line in the longitudinal direction and is located at the side of the support portion 512 ', specifically, referring to fig. 52, the arc notch 513 ' can be arranged at the right side of the center of gravity of the lock head 51 ', and thus, when the second lock body 52 ' is displaced to the left, the lock head 51 ' can naturally rotate counterclockwise to release the locking of the holder.

And/or, a third elastic member in the form of a spring or the like may be provided for the lock head 51 ', and in the locking state, the third elastic member may gather an elastic force in the form of a tensile force/a compressive force or the like, and when the second lock body 52 ' is gradually moved away, the elastic force of the third elastic member may be released to drive the lock head 51 ' to automatically rotate and unlock. In comparison, the above two modes can both realize the automatic rotation of the lock head 51' during unlocking, and in specific implementation, a person skilled in the art can select the mode according to actual needs.

In the specific assembly, referring to fig. 54, the number of the rotary supports 54 ' may be two, so that the lock head 51 ' may be erected on the two rotary supports 54 ', the stability of the installation of the lock head 51 ' is higher, and the space between the two rotary supports 54 ' may be used for inserting the second lock body 52 ', and the connection structure of the lock head 51 ', the second lock body 52 ' and the rotary supports 54 ' may also be more compact.

As shown in fig. 60, the rotary support 54 'may further include a third limiting portion 542', the third limiting portion 542 'may be an angle, and the third limiting portion 542' may abut against the support portion 512 'in an unlocked state to limit the downward rotation of the support portion 512', and may support a gap in which the second lock body 52 'is inserted from below the support portion 512', so that the second lock body 52 'is inserted again, and the support portion 512' is supported.

Here, the embodiment of the present invention does not limit the supporting height of the third limiting portion 542 ', and in the specific implementation, a person skilled in the art may set the supporting height according to actual needs, as long as when the third limiting portion 542 ' and the supporting portion 512 ' are supported, the locking portion 511 ' may unlock the holder portion, and at the same time, an insertion gap of the second lock body 52 ' is reserved.

Further, as shown in fig. 58, a support groove 514 'may be further disposed on the lock head 51', and when the lock head is unlocked, the third limiting portion 542 'may be inserted into the support groove 514'. It is understood that the depth of the third limiting portion 542 ' inserted into the supporting groove 514 ' actually determines the supporting height of the supporting portion 512 ' when unlocking, and therefore, in practical applications, the supporting height of the supporting portion 512 ' can be adjusted by adjusting the depth of the supporting groove 514 '.

Referring to fig. 59, the second latch body 52 ' may include an insertion section 521 ' having an inclined guide surface, and when locking is performed, the insertion section 521 ' may be inserted from below the support portion 512 ' and may be supported with the inclined guide surface to the support portion 512 ' to gradually bring the support portion 512 ' to rotate upward, the locking portion 511 ' to rotate downward, and lock the receptacle.

The second lock 52 ' may only include the insertion section 521 ', and under such conditions, in the locked state, the second lock 52 ' may still support the inclined guiding surface with the support portion 512 ', and in the unlocked state, the second lock 52 ' may be completely separated from the support portion 512 ', or the inclined guiding surface may support the support portion 512 ', that is, in the unlocked state, the second lock 52 ' may not be completely separated from the lock 51 ', and at this time, the second lock 52 ' may also limit the rotation of the lock 51 ', and since the lock 51 ' is still on the second lock 52 ', the problem that the second lock 52 ' cannot be inserted does not exist, and the aforementioned third limiting portion 542 ' may also not exist.

In the embodiment of the drawings, still referring to fig. 59, the second lock body 52 'may include three parts, namely, a large-sized support section 523' with a larger vertical dimension, a vertically variable-sized insertion section 521 ', and a small-sized support section 524' with a smaller vertical dimension, where the large-sized support section 523 'has a first support plane, and the small-sized support section 524' has a second support plane, and in the locked state, the second lock body 52 'may be supported by the first support plane and the support portion 512', and in the unlocked state, the second lock body 52 'may be supported by the second support plane and the support portion 512'.

Because the surface supporting the supporting part 512 'is a plane, the stability of the lock head 51' during unlocking and locking can be higher; based on the above design, the supporting portion 512 ' and the second lock 52 ' are not completely separated when unlocking, the small-sized supporting section 524 ' will naturally form a rotation limit for the supporting portion 512 ', and the third limiting portion 542 ' may not exist.

As a variant of the embodiment of fig. 59, the second locking body 52 ' may also comprise only a large-sized support section 523 ' (or a small-sized support section 524 ') and an insertion section 521 ', which likewise enables the function of the second locking body 52 '.

A guide structure may be provided between the second latch body 52 ' and the rotation support body 54 ' for guiding a sliding direction of the second latch body 52 '.

Specifically, one of the second lock body 52 'and the rotary support body 54' may be provided with a sliding groove 522 ', and the other may be provided with a sliding portion matching with the sliding groove 522', and the sliding portion may be inserted into the sliding groove 522 'and may slide along the sliding groove 522'. The sliding part may be an integral structure, such as the elongated sliding rail 543' shown in the drawing, or may be a split structure, for example, may include a plurality of sliders arranged at intervals.

Further, the locking device can further comprise a fixedly arranged fourth limiting part 55 ', the fourth limiting part 55' can be fixed in the end part accommodating cavity 221b-2, and in a locking state, the fourth limiting part 55 'can be abutted against the supporting part 512' from top to bottom.

Therefore, in the locking state, the lock head 51 ' can form a scheme of three-point support, the stress of the lock head 51 ' is more balanced, and the lock head 51 ' can lock the support part more reliably; moreover, due to the interaction of the three force points, there is substantially no force action between the arc-shaped notch 513 'and the rotation shaft portion 541', which has a positive effect on ensuring the reliability of the locking mechanism.

Here, the embodiment of the present invention is not limited to the structure of the fourth limiting portion 55', and may be plate-shaped or block-shaped; similarly, the embodiment of the present invention also does not limit the number of the fourth limiting portions 55', and may include one limiting member or a plurality of independent limiting members, as long as the above-mentioned technical effects can be achieved.

Referring to fig. 55 in conjunction with fig. 52 and 53, in an exemplary scheme, the second locking driving beam assembly 53 'may include a second push beam 531', a second guiding sleeve 532 ', and a coupling beam unit 533', where the second guiding sleeve 532 'may be fixedly disposed, and specifically, may be installed in the end receiving cavity 221b-2 (refer to fig. 54), the second push beam 531' may be slidably connected to the second guiding sleeve 532 ', one end of the coupling beam unit 533' is hinged to the second push beam 531 ', and the other end is hinged to the second lock body 52'.

With such a structure, when the second push beam 531 ' is driven by a driving force to move upwards, the connecting beam unit 533 ' can drive the second lock body 52 ' to slide in a direction away from the lock head 51 ', and then the lock head 51 ' can rotate to unlock itself; when the driving force disappears, the second push beam 531 'can automatically slide down along the second guiding sleeve 532' by means of its own gravity, etc., and the coupling beam unit 533 'drives the second lock body 52' to slide toward the lock head 51 'to support the supporting portion 512' again, and the lock head 51 'can rotate in the opposite direction to realize automatic locking, or certainly, the external device can provide the opposite driving force to drive the second push beam 531' to reset and lock.

Specifically, the second push beam 531 ' may face the end first connection hole 221d (refer to fig. 52 and 53) so that the unlocking member can contact the second push beam 531 ' through the end first connection hole 221d, thereby applying an upward unlocking driving force to the second push beam 531 '.

It should be noted that the embodiment of the present invention does not limit the source of the driving force applied to the second push beam 531 'during unlocking, and a manual driving scheme may be adopted, for example, an unlocking component such as an unlocking lever may be provided, and when unlocking is required, an operator may manually operate the unlocking component to generate the driving force for the second push beam 531'; or, an automatic driving scheme may also be adopted, in this case, the power source may be a motor, an air cylinder, an oil cylinder, or the like, the power source may be mounted on the vehicle body, or may be mounted on the ground equipment, which may be specifically selected according to the actual situation, and a transmission mechanism may also be disposed between the power source and the second push beam 531' to transmit the driving force of the power source.

The beam section of the second push beam 531 'above the second guide sleeve 532' may further be provided with a second connection sleeve 531a ', as shown in fig. 56, the second connection sleeve 531 a' may specifically include a tube portion and a hinge portion, the tube portion may be mounted on the upper portion of the second push beam 531 'by means of screw connection, welding, interference fit, and the like, the hinge portion may include two hinge plates disposed oppositely, and the aforementioned connection beam unit 533' may be hinged between the two hinge plates.

The second connection sleeve 531a ' and the second guiding sleeve 532 ' are also used as a limiting member for the downward movement of the second push beam 531 ', so as to limit the maximum downward movement distance of the second push beam 531 ', and at the same time, limit the displacement distance of the second lock 52 '.

In fact, the downward movement limiting of the second push beam 531 'can also be realized by the cooperation of the lock head 51' and the fourth limiting portion 55 ', so that the second connecting sleeve 531 a' may not exist; alternatively, the connecting end portion of the connecting beam unit 533 'and the second push beam 531' may be used for limiting, and the connecting end portion and the second push beam 531 'are hinged, and the connecting end portion and the second push beam 531' are usually disposed at an included angle in the actual operation process, so that the connecting end portion can also be used as a limiting component for the downward movement of the second push beam 531 'even though the second connecting sleeve 531 a' does not exist.

Further, a second elastic member 531b 'may be further included, and one end of the second elastic member 531 b' may interact with the second push beam 531 ', and the amount of deformation of the second elastic member 531 b' may be increased in the unlocked state to gather the elastic force. With this arrangement, when the driving force acting on the second push beam 531 'is eliminated, the elastic force of the second elastic member 531 b' can be released to cooperate with the gravity of the second push beam 531 'to drive the lock head 51' to be reset and locked together.

Specifically, the second elastic member 531b 'may be a spring, which may be externally fitted to the second push beam 531', and the lower end portion of the second push beam 531 'may be provided with a second support member 531 c', and both ends of the spring may be respectively abutted against the second guide sleeve 532 'and the second support member 531 c'. The second push beam 531' can serve as a spring column, so that the radial movement of the spring in the stretching process can be prevented, and the positive effects of improving the structural stability and the power transmission reliability are achieved; with this structure, in the unlocked state, the second push beam 531 'can be displaced upward and the second elastic member 531 b' can be compressed, and when the locking is restored, the second push beam 531 'can be displaced downward and the second elastic member 531 b' can be released again.

In fact, in the locked state, the second elastic member 531b 'may also have a certain pre-compression amount, that is, the second elastic member 531 b' may still provide a certain elastic force when being locked, which has a positive effect on ensuring the stability of the locked state of the locking head 51 ', and may avoid the automatic unlocking of the locking head 51' when the rail vehicle passes through a curve.

To conveniently adjust the pre-compression amount, the second supporting member 531c 'may be a nut, so that the distance between the second supporting member 531 c' and the second guiding sleeve 532 'can be adjusted by changing the screwing position of the nut, and thus the pre-compression amount of the second elastic member 531 b' in the locked state can be adjusted.

In the unlocked state, the second elastic member 531b 'may be actually in a stretched state, and the installation position of the second elastic member 531 b' may be changed, and in particular, it may be disposed between the second connection sleeve 531a 'and the second guide sleeve 532', and both ends thereof may be fixedly connected to the second connection sleeve 531a 'and the second guide sleeve 532' so as to transmit the pulling force.

The coupling beam unit 533 'may be a structure formed by combining a plurality of coupling beams, and in an exemplary embodiment, the coupling beam unit 533' may include a first locking coupling beam 533a ', a second locking coupling beam 533 b', and a coupling block 533c ', and the coupling block 533 c' may have a non-collinear fixed hinge point 533c-1 ', a first hinge point 533 c-2', and a second hinge point 533c-3 ', and the fixed hinge point 533 c-1' may be fixedly disposed, and may be fixed to the end coupling hook 221, and one end of the first locking coupling beam 533a 'may be hinged to the second pushing beam 531', and the other end may be hinged to the first hinge point 533c-2 ', and one end of the second locking coupling beam 533 b' may be hinged to the second lock body 52 ', and the other end may be hinged to the second hinge point 533 c-3'.

With this structure, as shown in fig. 52 and 53, when the second push beam 531 'moves upward, the first locking connecting beam 533 a' can be driven to move upward, then the connecting block 533c 'can be driven to rotate clockwise around the fixed hinge point 533 c-1', and the connecting block 533c 'drives the second locking connecting beam 533 b' and the second lock body 52 'to move leftward, and the lock head 51' can rotate counterclockwise to unlock the bracket; when the second push beam 531 ' moves downward, the first locking coupling beam 533a ' can be driven to move downward, then the switch block 533c ' can be driven to rotate counterclockwise, the switch block 533c ' drives the second locking coupling beam 533b ' and the second lock body 52 ' to move rightward, and the lock head 51 ' can rotate clockwise to lock the bracket again.

It should be noted that the above description of the specific structure of the second locking driving beam assembly 53 ' is only a preferred solution of the embodiment of the present invention, and cannot be taken as a limitation to the scope of the implementation of the rotary piggyback transport system for loading and unloading provided by the present invention, and other forms of the second locking driving beam assembly 53 ' may be adopted if the function is satisfied, for example, the second locking driving beam assembly 53 ' may be a beam directly configured to be linearly displaceable.

Further, as shown in fig. 7, the body portion 1 is also provided with a lateral stopper mechanism 6. When the tray portion 4 is reset from a position separated from the end portion chassis 2 to a position connected to the end portion chassis 2, the horizontal stopper mechanism can determine the reset position of the tray portion 4 to ensure that the tray portion 4 is accurately mounted on the body portion 1.

Specifically, the lateral stopping mechanism 6 may be mounted on the end chassis 2 and the joint chassis 3, and since the mounting structures are similar, the structure of the lateral stopping mechanism 6 will be described below only by taking the mounting on the end chassis 2 as an example, and similarly, the embodiment of the present invention also provides two structural forms of the lateral stopping mechanism 6.

The structure of the first transverse stopping mechanism 6 can be seen from fig. 61-61, fig. 61 is a structural view of the first transverse stopping mechanism mounted on the end connecting hook, fig. 62 is a structural view of a specific embodiment of the first transverse stopping mechanism, fig. 63 is an exploded view of fig. 62, fig. 64 is a structural schematic view of the support, fig. 65 is a split structural view of the first connecting beam, fig. 66 is a structural view of another specific embodiment of the first transverse stopping mechanism, and fig. 67 is an exploded view of a connecting structure of the first stopping beam and the connecting end in fig. 66.

As shown in fig. 61 to 63, the first lateral stopper mechanism 6 includes: the support 61 is fixed on the end part connecting hook 221 through welding and the like, and a through hole 611 is formed in the support 61; a first stopper beam 62; the stop driving beam assembly 63 is in transmission connection with the first stop beam 62; in the blocking state, the first blocking beam 62 can extend out of the through hole 611 to form a lateral blocking for the holder 4, and in the unblocking state, the blocking driving beam assembly 63 can drive the first blocking beam 62 to retract to release the blocking for the holder 4.

With the structure, in the stopping state, the first stopping beam 62 can extend out from the through hole 611 to form a transverse stopping for the support part 4, so that the accurate resetting of the support part 4 can be ensured; in the unlocking state, the stop driving beam assembly 63 can act on the first stop beam 62 again to retract the first stop beam, so that the stop of the bracket 4 can be released, and the normal separation of the bracket 4 and the end underframe 2 is not affected.

Further, a third elastic member 64 may be further included, and the third elastic member 64 may act on the first stopper beam 62, and the amount of deformation of the third elastic member 64 may be increased during the releasing process to gather the elastic force. Thus, when the driving force acting on the stopper driving beam assembly 63 is removed, the third elastic member 64 may be released to drive the first stopper beam 62 to automatically return to the stopper position, which may improve the degree of automation of the apparatus.

Referring to fig. 63, the first stopper beam 62 may include a thick neck portion 621 and a thin neck portion 622, between which a step surface 623 may be formed, and the third elastic member 64 may be a spring, which may be externally fitted to the thin neck portion 622 and may be capable of interacting with the step surface 623. At this moment, the thin neck portion 622 can also play a role of a spring column to guide the extension and retraction of the spring, so that the radial play of the spring in the extension and retraction process can be avoided to a greater extent, and the positive effect on improving the stability and the reliability of transmission is achieved.

It should be noted that, besides the solution of using a spring, the third elastic element 64 may also use other forms of elastic elements such as an elastic ball, an elastic block, a tensile cord, etc., as long as the use effect can be satisfied.

The support 61 may further be provided with a stop limiting member 65, two ends of the third elastic member 64 may respectively interact with the stop limiting member 65 and the step surface 623, in the scheme of the drawing, the first stop beam 62 may use the thick neck portion 621 as a stop portion to improve the strength of the stop portion, and when the shift is released, the step surface 623 may generate a compression force on the third elastic member 64 to increase the compression amount of the third elastic member 64, in this scheme, the third elastic member 64 is in contact relationship with the stop limiting member 65 and the step surface 623.

Moreover, the cross section of the thick neck 621 may be non-circular, and the through hole 611 may match with the thick neck 621, where the matching means that the shape and the size of the thick neck 621 and the through hole 611 are substantially the same, so that when the thick neck 621 is inserted into the through hole 611, the thick neck 621 does not rotate relatively, and the positioning reliability of the stopper may be improved. Further, the stop surface of the thick neck portion 621 contacting the holder portion 4 may be a flat surface, and thus, the contact area between the holder portion 4 and the stop surface may be larger, and the reliability of the stop may be improved to a greater extent.

In fact, during the gear releasing process, the third elastic member 64 may also generate a pulling force, in this case, the thin neck portion 622 of the first stop beam 62 may be used as a stop portion contacting with the holder 4, and in this case, both ends of the third elastic member 64 need to be connected with the stop limiting member 65 and the step surface 623, so as to generate a pulling force during the gear releasing process.

The structure of the stop limit 65 is not limited herein, and in the specific implementation, a person skilled in the art can set the stop limit according to actual needs as long as the above-mentioned effects can be achieved. For example, in the solution of fig. 63, the stop limiting member 65 may be a sleeve, which may be a cylinder, a square cylinder, or a special-shaped cylinder with other shapes, and the sleeve may protect the spring to prevent rainwater, dust, etc. from being involved to affect the normal operation of the spring; in the solution of fig. 66, the stop limit 65 may be a plate or a block, and may be connected to the support 61 through the stop upper cover plate 615, and at this time, the spring is in a relatively open space, and an operator may directly observe the spring to conveniently adjust the installation state of the spring.

Referring to fig. 64, in practice, the embodiment of the present invention does not limit the structure of the support 61, and the structure is mainly to adapt to the connection with the end connection hook 221, and in practical implementation, a person skilled in the art can adjust the shape of the support 61 according to the end connection hook 221, and the support 61 needs to provide corresponding mounting points, one of the mounting points is the aforementioned through hole 611, and another mounting point, i.e., a mounting hole 612, is shown in the figure, and the mounting hole 612 can be used for mounting a brake pipe assembly (not shown in the figure) of the piggyback vehicle.

The stop driving beam assembly 63 may include a first connecting beam 631 hinged to each other, one end of the first connecting beam 631 may be a first driving end 6311 for receiving an external driving force, the other end may be a connecting end 6312, the first hinge shaft 633 of the first connecting beam 631 may be fixedly disposed, specifically, may be fixedly installed on the support 61 and located between the first driving end 6311 and the connecting end 6312, and the connecting end 6312 may be in transmission connection with the first stop beam 62.

Here, the embodiment of the present invention does not limit the source of the driving force applied to the stop driving beam assembly 63 during the gear shifting, and the stop driving beam assembly may be manually driven, for example, a gear shifting component such as a gear shifting lever may be provided, and when the gear shifting is required, the gear shifting component may be manually operated by a worker to generate the driving force for the first driving end 6311; alternatively, an automatic driving scheme may be adopted, in this case, the power source may be a motor, an air cylinder, an oil cylinder, or the like, the power source may be mounted on the vehicle body, or may be mounted on the ground equipment, which may be specifically selected according to actual conditions, and a transmission mechanism may be further disposed between the power source and the first driving end 6311 to transmit the driving force of the power source.

In one aspect, as shown in fig. 61 to 63, the stopper driving beam assembly 63 may further include a second coupling beam 632, one end of the second coupling beam 632 may be connected to the first stopper beam 62 by a screw connection or welding, and the other end of the second coupling beam may be connected to the connecting end 6312, one of the second coupling beam and the connecting end may be provided with a second hinge shaft 634, the other one of the second coupling beam and the connecting end may be provided with a strip-shaped guide hole 631a-1, and the second hinge shaft 634 may be inserted into the strip-shaped guide hole 631 a-1.

With this arrangement, the rotation of the connection end 6312 is converted into the linear movement of the second link beam 632 by the engagement of the second hinge shaft 634 with the strip guide hole 631a-1, so that the first stopper beam 62 can be driven to extend or retract.

In the drawings, the strip guide hole 631a-1 may be provided at the connection end 6312, and the second hinge shaft 634 may be fixed to the second link beam 632, so that the second link beam 632 may be relatively small in size and compact in structure.

In particular practice, the spring may have a pre-compression amount to ensure the reliability of the first stop beam 62 in the stop position, and the pre-compression amount may be adjusted by the connection position of the second coupling beam 632 and the first stop beam 62.

Based on the scheme that the second connecting beam 632 is fixed to the first stop beam 62 through threaded connection, a first anti-loosening element 624 may be further provided, and the first anti-loosening element 624 may also be connected to the first stop beam 62 and may abut against the second connecting beam 632 to fix the second connecting beam 632 in an anti-loosening manner. The first anti-loosening element 624 may be a lock nut, or may be an anti-loosening stop limiting element in the form of a slip, a stop, or the like.

Further, a stopping connecting plate 613 and a guard plate 614 may be further included, one end of the stopping connecting plate 613 may be connected to the support 61, and the other end may be connected to the guard plate 614 for protecting the stopping driving beam assembly 63, and the aforementioned first hinge shaft 633 may be mounted on the stopping connecting plate 613, and a specific mounting manner may be welding, or may also be mounted by means of a mounting plate 633a and a bolt, as long as reliable fixing of the first hinge shaft 633 can be ensured. In practice, the stop connecting plate 613 and the guard plate 614 may be part of the holder 61.

In another alternative, as shown in fig. 66 and 67, the connecting end 6312 may be provided with a strip-shaped guide slot 631e, the first stop beam 62 may be inserted into the strip-shaped guide slot 631e, and the connecting end 6312 may abut against a locking member 631f provided on the first stop beam 62 to define a connecting position of the connecting end 6321 with the first stop beam 62.

With this arrangement, the first stopper beam 62 is matched with the strip-shaped guide groove 631e, so that the rotational movement of the connecting end 6312 can be converted into the linear movement of the first stopper beam 62, so as to drive the first stopper beam 62 to perform the unlocking or the returning of the stopper.

In detail, the connection end 6312 may be defined between the locker 631f and the stopper-limiting member 65, the pre-compression amount of the third elastic member 64 may be adjusted by the installation position of the locker 631f on the first stopper beam 62, and a first pad 631g may be further provided between the locker 631f and the connection end 6312 to reduce the abrasion at the connection therebetween.

The locking member 631f and the first stop beam 62 may be connected by a screw, or by welding, or by a second anti-loosening member, which may be a lock nut, or a stop insert (not shown in the drawings), a stop block, or the like, and is used to limit the installation position of the locking member 631 f.

In comparison, the above two schemes can both realize the conversion of the rotational movement of the first connecting beam 631 to the linear movement of the first stopping beam 62, and can realize the switching of the first stopping beam 62 between the stopping state and the stopping state, and in a specific application, a person skilled in the art can select the scheme according to actual needs.

Taking the first solution as an example, the first coupling beam 631 may include a long plate 631a and a short plate 631b that are disposed at an interval, the first hinge shaft 633, the long plate 631a and the short plate 631b may be connected, one end of the long plate 631a forms the connection end 6312, the strip-shaped guide hole 631a-1 may be disposed on the long plate 631a, and a roller 631c may be connected between the other end of the long plate 631a and the short plate 631b, where the long plate 631a, the short plate 631b, and the roller 631c are combined together to form the first driving end 6311.

When an external driving force acts on the roller 631c, the roller 631c may rotate, which may cut friction between the first driving end 6311 and an external driving device, which may have a positive effect on reducing wear of the first driving end 6311.

Referring to fig. 65, a roller 631d may be further included, the roller 631d may include a rod 631d-1 and a head 631d-2, the head 631d-2 may have a radial dimension larger than that of the rod 631d-1, the long plate 631a and the short plate 631b may each have a through hole 631b-1, the through hole 631b-1 of one of the two inside may be a stepped hole, at least a portion of the head 631d-2 may be hidden in a large-diameter hole section of the stepped hole in an assembled state, and an end of the rod 631d-1 away from the head 631d-2 may be cooperatively locked with the locking nut 631 d-3.

Here, the "inner side" means a side close to the end connection hook 221, and with this design, the length of the roller 631d protruding to the inner side may be short, and contact friction with the end connection hook 221 when the first driving end 6311 rotates may be largely avoided.

In the above solutions, the restoring stopping of the first stopping beam 62 mainly depends on the third elastic member 64 directly acting on the first stopping beam 62, and actually, in addition to this solution, the stopping driving beam assembly 63 may also be used to drive the first stopping beam 62 to return to the stopping state, that is, both the releasing stopping and the restoring stopping of the first stopping beam 62 may be accomplished by the stopping driving beam assembly 63, and this solution may be implemented by providing an elastic member to the stopping driving beam assembly 63.

In addition, one core of the transverse stopping mechanism lies in the separation of the stopping driving beam assembly 63 and the first stopping beam 62, in the stopping state, only the first stopping beam 62 and the support 61 are stressed, and the stopping driving beam assembly 63 for participating in driving is not stressed, which is a key point of high reliability of the transverse stopping mechanism.

Fig. 68 to 67 show the structure of the second transverse stopping mechanism 6, fig. 68 is a relative position diagram of the second transverse stopping mechanism with respect to the end portion connecting hook and the end portion holding portion in the stopping state, fig. 69 is a partial enlarged view of fig. 68, fig. 70 is a relative position diagram of the second transverse stopping mechanism with respect to the end portion connecting hook and the end portion holding portion in the unlocking state, fig. 71 is a partial enlarged view of fig. 70, fig. 72 is a structural view of the second transverse stopping mechanism mounted to the end portion connecting hook, and fig. 73 is an exploded view of fig. 72.

As shown in fig. 69 and 71 to 73, the lateral stopper mechanism 6 includes: a second stopper beam 61 ' hingedly disposed, both ends of the second stopper beam 61 ' being a driving end 611 ' and a stopping end 612 ', respectively, a hinge shaft 613 ' of the second stopper beam 61 ' being located between the driving end 611 ' and the stopping end 612 ', and the hinge shaft 613 ' being fixed to the end connection hook 221; a limit beam 62' fixed to the end connection hook 221; in the stopping state, the limit beam 62 ' is abutted against the outer side of the second stop beam 61 ' along the transverse direction, and the second stop beam 61 ' can form a transverse stopping for the support part 4; in the disengaged state, the driving end 611 'is forced to rotate to drive the stopping end 612' to release the stop of the holder 4.

By adopting the structure, in the stopping state, the limit beam 62 'can be propped against the second stop beam 61' along the transverse direction to provide transverse supporting force for the second stop beam 61 ', and then the second stop beam 61' forms transverse stopping for the support part 4, so that the accurate resetting of the support part 4 can be ensured; in the gear-releasing state, the driving end 611 ' is stressed and drives the whole second stop beam 61 ' to rotate, so as to drive the stop end 612 ' to rotate to release the stop, so as not to affect the normal separation of the bracket 4 and the end underframe 2.

More importantly, in the stopping state, when the supporting part 4 resets and hits the second stopping beam 61 ', only the stopping end part 612' and the limiting beam 62 'are stressed, and the driving end part 611' which is the moving part of the transverse stopping mechanism is not stressed, which has a key effect on ensuring the reliability of the transverse stopping mechanism.

It should be noted that the embodiment of the present invention does not limit the source of the driving force received by the driving end portion 611 'during the gear shifting, and the embodiment may adopt a manual driving scheme, for example, a gear shifting component such as a gear shifting lever may be provided, and when the gear shifting is required, the gear shifting component may be manually operated by a worker to generate the driving force for the driving end portion 611'; or, an automatic driving scheme may also be adopted, in this case, the power source may be a motor, an air cylinder, an oil cylinder, or the like, the power source may be mounted on the vehicle body, or may be mounted on the ground equipment, which may be specifically selected according to the actual situation, and a transmission mechanism may also be disposed between the power source and the driving end portion 611' to transmit the driving force of the power source.

Further, the gear shifting device may further include a first limiting member 63 ', the first limiting member 63 ' is fixed to the end connection hook 221, and in the gear shifting state, the second stopping beam 61 ' may abut against the first limiting member 63 ' to avoid an excessive rotation of the second stopping beam 61 '.

Here, the shape of the first limiting member 63' is not limited in the embodiment of the present invention, and may be a plate shape, a block shape, a column shape, or the like, and may be specifically determined according to actual situations; similarly, the number and the mounting positions of the first stoppers 63' are not limited in the embodiment of the present invention, as long as the above-described effects can be achieved. In an exemplary embodiment of the present invention, the first retaining member 63 'may be formed by extending the end hook wall plate 221c of the end connection hook 221, so that the first retaining member 63' does not need to be specially provided, and the number of parts may be reduced.

In the disengaged state, i.e. when the second stop beam 61 ' abuts against the first stop member 63 ', the center of gravity of the second stop beam 61 ' may be longitudinally offset from the hinge axis 613 ' and located at the side of the stop end portion 612 '. Thus, when the driving force acting on the driving end 611 ' is removed, the second stopper beam 61 ' can be automatically rotated to the stopper state by the gravity of the second stopper beam 61 ' itself without providing another driving part, and the structure of the apparatus can be simplified.

And/or, a stopper fourth elastic member 65 'may be further included, and the stopper fourth elastic member 65' may act on the second stopper beam 61 ', and the amount of deformation of the stopper fourth elastic member 65' may be increased during the shift release process to accumulate the elastic force. Thus, when the driving force acting on the driving end 611 ' disappears, the elastic force accumulated by the stopper fourth elastic member 65 ' can be released to cooperatively drive the second stopper beam 61 ' to rotate back to the stopper state by itself or in cooperation with the aforementioned gravity.

The stopper fourth elastic member 65 'may be a torsion spring, which is externally sleeved on the hinge shaft 613', and has two extending ends, one of which may be fixed (or abutted against a fixed member, such as the end connection hook 221), and the other of which may be abutted against the second stopper beam 61 ', and when the second stopper beam 61' rotates to release the stopper state, the torsion spring may gather a torsional deformation force, and when the driving force applied to the driving end 611 'disappears, the torsional deformation force may be released to drive the second stopper beam 61' to automatically rotate.

The stopper fourth elastic member 65 ' may be a linear spring, such as a spring element that generates an elastic force by an axial displacement, for example, a tension spring, a compression spring, etc., and the linear spring may be a tension spring in which one end of the tension spring may be fixed and the other end may be connected to the second stopper beam 61 ', so that the elastic force may be accumulated when the second stopper beam 61 ' is rotated to release the stopper, as shown in fig. 71.

In addition to the above-mentioned torsion spring and linear spring, the stopper fourth elastic member 65' may also be an elastic element in the form of an elastic block, an elastic ball, a tensile cord, or the like, as long as the above-mentioned technical effects can be achieved.

Furthermore, a second limiting member 64 ' may be further included, the second limiting member 64 ' is fixed to the end portion connection hook 221, and in the stopping state, the second stopping beam 61 ' may abut against the second limiting member 64 ' to limit the position of the second stopping beam 61 ' in the stopping state. The second limiting members 64 'may be similar in structure, number and installation position to the first limiting members 63', and will not be described repeatedly.

Moreover, the second stopper beam 61 ' and the stopper beam 62 ' may be vertically spaced from each other by the support of the second stopper 64 ', so that the stopper beam 62 ' does not need to bear the weight of the second stopper beam 61 ', accordingly, the joint between the stopper beam 62 ' and the end portion connecting hook 221 does not generate a shear stress, and the reliability of the connection between the stopper beam 62 ' and the end portion connecting hook 221 may be high.

With respect to the lateral stopper mechanism 6 of the bracket 4 according to each of the above embodiments, the structure of the second stopper beam 61' will be described in the following embodiments of the present invention.

Referring to fig. 69, in the stopping state, the driving end 611 ' may be an end gradually inclined from top to bottom toward the stopping end 612 ', so that when the driving end 611 ' receives an upward driving force, the second stopping beam 61 ' will naturally rotate toward the direction of stopping state release, so as to ensure that the second stopping beam 61 ' can be unlocked smoothly.

It is understood that adjusting the shape of the driving end 611 ' actually adjusts the driving force and the acting direction of the driving end 611 ', so that the rotational unlocking of the second stopper beam 61 ' can be realized by adjusting the direction of the driving force in specific implementation.

In the stopping state, the end of the second stopper beam 61 'away from the driving end 611' may be provided with a downward bent elbow, which serves as the stopper end 612 ', to increase the strength of the stopper end 612' and to avoid the vehicle body and the brake pipe guard (not shown).

Referring to fig. 73, the hinge shaft 613 ' of the second stopper beam 61 ' may be a stepped shaft, and specifically, may include a large diameter section 613a ' and a small diameter section 613b ', wherein the large diameter section 613a ' may be used to connect with the end connection hook 221, and the second stopper beam 61 ' may be mounted to the large diameter section 613a '; a third limiting member 613c ', which may be a nut, may be further included, and may be mounted to the small-diameter section 613b ' to cooperate with the end connection hook 221 to limit the mounting position of the second stopper beam 61 '. It should be understood that the third limiting element 613c 'mainly serves to limit the rotation of the second stop beam 61' after the installation, and is not locked.

A second spacer 613d 'may be further disposed between the third limiting member 613 c' and the second stopper beam 61 ', and the second spacer 613 d' may be made of rubber, metal, or the like, so as to avoid direct friction between the second stopper beam 61 'and the third limiting member 613 c', thereby having a positive effect of reducing wear.

End frame lifting part

Referring to fig. 88-95, fig. 88 is a schematic structural view of the end frame lifting device at the highest position, fig. 8 is a perspective view of fig. 88, fig. 90 is a perspective view of the end frame lifting device at the lowest position, fig. 91 is a schematic structural view of the first base, fig. 92 is a schematic structural view of the first supporting seat, fig. 93 is a schematic structural view of the first push rod, fig. 94 is a schematic structural view of the first rocker, and fig. 95 is a schematic structural view of the first supporting rod.

Each group of the end frame lifting parts comprises two end frame lifting devices 7 respectively positioned at two sides of the rail 100, that is, the number of the end frame lifting devices 7 is four, and two sides of one end frame 2 are respectively and correspondingly provided with the end frame lifting devices 7 so as to lift the end frame from two sides, so that the lifting stability can be ensured, and the strength requirement of the single end frame lifting device 7 can be reduced. It is noted that the end frame lifting device 7 here can be used both for lifting the aforementioned end frame 2 and for lifting the aforementioned articulated frame section 3 a.

Specifically, in this embodiment, as shown in fig. 88 to 90, the end frame lifting device 7 includes a first base 71, a first supporting seat 72, and a driving mechanism, wherein both sides of the first supporting seat 72 are connected by a first supporting component 74 and the first base 71, respectively. Specifically, the first base 71 is provided with a first sliding channel 711, the first supporting seat 72 is provided with a second sliding channel 721, the first supporting assembly 74 includes a first supporting rod 741 and a second supporting rod 742 that are arranged in a crossing manner, wherein a top end of the first supporting rod 741 is hinged to the first supporting seat 72, a bottom end of the first supporting rod 741 is slidable along the first sliding channel 711, a bottom end of the second supporting rod 742 is hinged to the first base 71, a top end of the second supporting rod 742 is slidable along the second sliding channel 721, and the driving mechanism can act on the first supporting assembly 74 to change an included angle between the first supporting rod 741 and the second supporting rod 742, so as to change a height of the first supporting seat 72 from the first base 71.

Wherein, the first supporting seat 72 is abutted against the lower end face of one end of the end frame 2 facing the supporting part 4, when the driving mechanism acts on the first supporting component 74 to reduce the included angle between the first supporting rod 741 and the second supporting rod 742, the height of the first supporting component 74 is increased, so as to drive the first supporting seat 72 to ascend relative to the first base 71, and further lift one end of the end frame 2 facing the supporting part 4 of the piggyback car upwards until the center plate of the bogie is no longer stressed, namely, the lifting operation of the supporting part 4 can be carried out through the supporting part lifting device 8, at this time, the end frame 2 cannot deflect due to the support of the end frame lifting device 7, and after the supporting part 4 is assembled and disassembled and is matched with the end frame 2 again, the driving mechanism acts on the first supporting component 74 to increase the included angle between the first supporting rod 741 and the second supporting rod 742, so as to reduce the height of the first supporting component 74, thereby driving the first supporting seat 72 to descend to the original position relative to the first base 71.

In the above embodiment, the driving mechanism includes the first driving member 731 and the first locking member 732, the first driving member 731 is disposed on the first base 71 and provides a power source to act on the first supporting member 74 to change the angle between the two supporting rods (the first supporting rod 741 and the second supporting rod 742), when the angle between the first supporting rod 741 and the second supporting rod 742 reaches the minimum, that is, when the first supporting seat 72 is lifted to the highest position, the first locking member 732 can lock the relative positions of the two supporting rods, namely, the state of the first supporting assembly 74 is maintained, so that the height position of the first supporting seat 72 is stable, the first supporting seat 72 is prevented from falling down due to sudden failure of the first driving part 731 and the like, thereby ensuring that the end frame lifting device 7 provides a stable support for the end frame 2 in use.

Further, the first locking component 732 includes a first push rod 733 and a first rocker 734, and the first base 71 further has a first pin seat 712, specifically, the first push rod 733 includes a first segment 7331, a first bend 7333 and a second segment 7332, which are sequentially disposed, wherein an end of the first segment 7331 is hinged to a bottom end of the first support rod 741 and can slide along the first slide way 711, the first bend 7333 is hinged to the first driving part 731, one end of the first rocker 734 is hinged to an end of the second segment 7332, and the other end of the first rocker 734 is hinged to the first pin seat 712; the first driving element 731 can act on the first bend 7333 to make the first rocker 734 rotate around the first pin seat 712 and drive the bottom end of the first supporting rod 741 to slide along the first sliding channel 711, and when the included angle between the two reaches the minimum, the first bend 7333 is located just above the first pin seat 712.

In detail, the opening of the first bend 7333 faces downward, the first rocker 734 is hinged between the second segment 7332 and the first pin seat 712, the first driving element 731 can act on the first bend 7333 and drives the first rocker 734 to rotate around the hinge point between the first rocker 734 and the first pin seat 712, so as to drive the first push rod 733 to rotate around the hinge point between the first bend 7333 and the first driving element 731, and the first segment 7331 can drive the first support rod 741 to move when rotating around the hinge point, because of the limitation of the first sliding channel 711, the bottom end of the first support rod 741 can only slide along the first sliding channel 711, so as to change the included angle between the two support rods.

As shown in fig. 89, when the first supporting rod 741 slides along the first sliding channel 711 to a minimum included angle between the two supporting rods, so that the first supporting seat 72 is lifted to the highest position, the first bend 7333 is just above the first pin seat 712, and the first driving element 731 is no longer in action, at this time, if the first driving element 731 fails to generate insufficient thrust, the driving action of the first driving element 731 on the first supporting component 74 is removed, and the end frame 2 continues to press down the first supporting seat 72, so that the angle between the two supporting rods tends to increase, because the opening of the first bend 7333 is downward and located right above the first pin seat 712, at this time, the vertically downward pressure cannot move the first push rod 733 laterally, thereby restricting the rotation of the first rocker 734 and the sliding of the first supporting rod 741 along the first sliding channel 711, so as to keep the state of each first supporting component 74 unchanged, namely, the included angle between the two support rods is not changed, the height of the first support seat 72 is not changed, and the stability is better.

Through the arrangement of the locking device, when the first driving element 731 raises the first supporting seat 72 to the highest position through the first supporting component 74, the automatic locking between the first supporting components 74 can be achieved, in this state, the vertical force cannot change the state of each first supporting component 74, and only when the end frame 2 needs to be lowered, the first driving element 731 provides a reverse acting force to make the first push rod 733 move transversely to the first bend 7333 to disengage from the first pin seat 712, the unlocking can be achieved, and the bottom end of the first supporting rod 741 is driven to move reversely along the first slideway 711 until the first supporting seat 72 is lowered to the lowest state (as shown in fig. 90). The first locking component 732 can lock and unlock the first supporting seat 72 while lifting the first supporting seat, and no additional locking component is needed, so that the overall structure and operation can be simplified, and the stability and operation convenience of the overall structure can be ensured.

Specifically, as shown in fig. 88-90, in this embodiment, the first driving member 731 is a hydraulic cylinder, a piston rod of the hydraulic cylinder is hinged to the first bend 7333 of the first push rod 733, two sides of the first supporting seat 72 are respectively connected to the first supporting component 74 and the first base 71, and the hydraulic cylinder and the bottom end of the first supporting rod 741 of one of the first supporting components 74 act to realize the integral lifting of all the first supporting components 74, so that the stability is good. Of course, in this embodiment, the power source may also be provided by a motor, a gear and a rack, or a motor, a lead screw and a nut, which is not limited herein.

In the above embodiment, the end of the first segment 7331 of the first push rod 733 is further provided with a connecting shaft, the connecting shaft is sleeved with the first roller 7335, the first driving element 731 acts on the first bend 7333 to make the first push rod 733 rotate around the hinge point between the first bend 7333 and the first driving element 731, the end of the first segment 7331 slides along the first slideway 711, and at this time, the first roller 7335 can roll along the bottom plate 71. The end of the first segment 7331 of the first push rod 733 can contact with the first base 71 through the first roller 7335, so that when the end of the first segment 7331 slides along the first slideway 711, the first roller 7335 rolls along the first base 71, thereby reducing resistance, reducing friction and wear between the first segment 7331 and the first base 71, and ensuring service life. Specifically, the first push rod 733 may include two first V-shaped connecting members 7334 arranged in parallel as shown in fig. 93, and a connecting shaft is further disposed between end portions of the two first V-shaped connecting members 7334 facing the first section 7331, or alternatively, an end portion of the first section 7331 may be provided with a groove, and the connecting shaft is disposed between two side walls of the groove.

Further, as shown in fig. 91, the first base 71 is further provided with a first rolling plate 713, and the first rolling wheel 7335 can roll along the first rolling plate 713, or in this embodiment, the first rolling wheel 7335 can be arranged to directly roll along the upper surface of the first base 71, and the first rolling plate 713 can be replaced after it is worn, so as to ensure the service life of the first base 71.

In the above embodiment, as shown in fig. 94, one end of the first rocker 734 facing the first pin holder 712 is provided with a first concave gap 7341, two sidewalls of the first concave gap 7341 and the first pin holder 712 are respectively provided with a first shaft hole 7342, and the first pin holder 712 is disposed in the first concave gap 7341 and is rotatably connected by a pin shaft passing through the first shaft hole 7342. Alternatively, in this embodiment, one end of the first rocker 734 may be disposed at one side of the first pin seat 712 and connected by a pin, and the first rocker 734 is disposed with the first concave gap 7341 and the first pin seat 712 is located in the first concave gap 7341, so that the connection between the first rocker 734 and the second rocker is more stable and the situation of deflection and clamping stagnation is avoided.

In the above embodiment, the end frame lifting device 7 further includes a first upper sliding shaft 75 and a first rolling sleeve 751 sleeved outside the first upper sliding shaft 75, two sides of the first supporting seat 72 are connected to the first base 71 through symmetrically disposed first supporting components 74, the first upper sliding shaft 75 passes through top ends of the symmetrically disposed second supporting rods 742 of the first supporting components 74 and can slide along the second sliding way 721, and the first rolling sleeve 751 is located between the two second supporting rods 742 and rolls in abutment with the first supporting seat 72. That is to say, act on through first roller 751 between first supporting component 74 and the first supporting seat 72 in order to guarantee the holding power of first supporting component 74 between to first supporting seat 72, stability is good, and simultaneously, this first roller 751 locates between two second bracing pieces 742, can also carry out spacing avoiding the distance between the two to change and influence the lift of end frame 2 to the two.

Further, the end frame lifting device 7 further includes a first lower sliding shaft 76, and the first lower sliding shaft 76 passes through the bottom end of the first supporting rod 741 of the first supporting assembly 74 and the first segment 7331 of the first pushing rod 733, and is slidable along the first sliding track 711. The bottom end of the first supporting rod 741 can slide along the first sliding channel 711 by the arrangement of the first lower sliding shaft 76, and the bottom end of the first supporting rod 741 is hinged to the end of the first segment 7331 of the first pushing rod 733, so that the overall structure can be simplified.

Further, as shown in fig. 95, the first supporting rod 741 has first reinforcing sleeves 7411 respectively disposed at two sides of the bottom end thereof and sleeved outside the first lower sliding shaft 76. The arrangement of the first reinforcing sleeve 7411 can increase the structural strength of the bottom end of the first supporting rod 741, and can also limit the bottom end of the first supporting rod 741, so as to reduce the distance between the two sides of the first supporting rod 741 and the first ends of the first base 71 and the first push rod 733, thereby avoiding the occurrence of the skew condition and having good stability.

In the above embodiment, the first base 71 and the first support base 72 are respectively provided with a side plate, and the first slide 711 and the second slide 721 are both elongated holes provided in the side plate. Alternatively, in this embodiment, the first slide channel 711 and the second slide channel 721 may be configured as a slide rail or a slide groove, and the configuration of the strip hole is simple, so as to simplify the manufacturing process.

In the above embodiment, as shown in fig. 92, the end frame lifting device 7 further includes a first unlocking portion 77, and the first unlocking portion 77 is provided on the upper end surface of the first support base 72 for unlocking the locking mechanism 5. Taking the first middle locking mechanism 5 as an example, when unlocking, the first unlocking portion 77 may move upward along with the end frame lifting device 7, and pass through the first connection hole 221d to interact with the first push beam 541, so as to drive the first locking body 51 to rotate, thereby unlocking the holder 4.

So set up, when the end frame was lifted, can realize the automatic unblock of locking mechanical system 5, degree of automation is higher.

In the present embodiment, the specific structure of the above-described rotary positioning device 300 is not limited, and the end frame lifting device 7 may be used as a lifting mechanism in the rotary positioning device 300, and the positioning shaft may be provided on the upper end surface of the first support base 72.

With reference to fig. 92a, the end frame lifting device 7 may also be provided with a second unlocking portion 78, which second unlocking portion 78 may unlock the respective lateral stop mechanism 6 upon upward displacement of the end frame lifting device 7. Taking the second lateral stopping mechanism 6 as an example, the second unlocking portion 78 can interact with the driving end 611 'of the second stopping beam 61' when moving upward, so as to drive the second stopping beam 61 'to rotate around the hinge shaft 613', and thus to release the lateral stopping of the holder 4.

With the arrangement, when the end frame is lifted, the transverse stopping mechanism 6 can be automatically unlocked, and in cooperation with the unlocking of the first unlocking part 77 on the locking mechanism 5, under the action of the end frame lifting device 7, the end frame can be lifted, the locking mechanism 5 and the transverse stopping mechanism 6 can be synchronously unlocked, that is, after the end frame is lifted, the support part 4 already has the condition of being lifted and separated, the rotation and separation operation of the support part 4 can be quicker, and the positive effect on improving the efficiency of loading and unloading is achieved.

Further, there are actually four lateral stopper mechanisms 6 for one body unit, and these four lateral stopper mechanisms 6 may be respectively provided on both lateral sides of both end frames to limit both lateral sides of both longitudinal end portions of the holder 4. When the rotation separation of the supporting part 4 is realized, actually, only two transverse stopping mechanisms 6 at opposite angles need to be unlocked, therefore, only one of the two end frame lifting devices 7 of each group of end frame lifting parts can be provided with the second unlocking part 78, and the end frame lifting devices 7 provided with the second unlocking parts 78 in the two groups of end frame lifting parts can be respectively positioned at different transverse sides of the track, so that the unlocking of the two transverse stopping mechanisms 6 at opposite angles can be realized, and the rotation separation of the supporting part 4 can be further realized. And the other two diagonal transverse stop mechanisms 6 which are not unlocked can be used as the rotation limiting structures of the support part 4 so as to ensure that the support part 4 can accurately rotate in place.

Longitudinal positioning device

Referring to fig. 105-111, fig. 105 is a schematic structural view of the longitudinal positioning device at the highest position, fig. 106 is a front view of fig. 105, fig. 107 is a schematic structural view of the longitudinal positioning device at the lowest position, fig. 108 is a front view of fig. 107, fig. 109 is a schematic structural view of the third base, fig. 110 is a schematic structural view of the third sliding seat, and fig. 111 is a schematic partial structural view of the longitudinal positioning device.

The ground equipment also comprises a longitudinal positioning device 9 arranged in the track 100, the longitudinal positioning device 9 comprises a third base 91, a third sliding seat 92, a lifting part 94, a driving part and a positioning part 95, wherein the driving part can drive the third sliding seat 92 to slide longitudinally relative to the third base 91, the lifting part 94 and the positioning part 95 are both arranged on the third sliding seat 92, the lifting part 94 can lift the positioning part 95, the positioning part 95 is matched with a longitudinal positioning structure arranged on the lower end surface of the support part 4 of the piggyback car, when the positioning part 95 is acted by the lifting part 94 to enable the lifting part to be in a lifting state, the driving part can drive the third sliding seat 92 to slide longitudinally relative to the third base 91 and drive the positioning part 95 arranged on the third sliding seat 92 to slide longitudinally to be matched with the positioning structure arranged on the lower end surface of the support part 4, then the driving part continues to drive, and can push the support part 4 through the matching action of the positioning part 95 and the longitudinal positioning structure, so that it is moved longitudinally to a preset position.

The longitudinal direction is the length direction of the piggyback car, and the longitudinal positioning device 9 can drive the car to move to a preset position, so that each body part and the support part 4 respectively correspond to the arrangement positions of other loading and unloading yard equipment (comprising an end underframe lifting device 7, a support part lifting device 8, a slope transition device 200, a rotating device 400 and the like) arranged at a platform, and the loading and unloading are ensured to be carried out smoothly.

Specifically, the longitudinal positioning device 9 is disposed in a track 100 of a loading and unloading yard, a positioning structure is disposed on the lower end surface of the support part 4, the positioning structure is adapted to a limiting mechanism of the longitudinal positioning device 9 provided in this embodiment, when the support part 4 is located within a preset range after the piggyback car stops, the lifting part 94 of the longitudinal positioning device 9 is started to make the positioning part 95 in a lifted state, at this time, the positioning part 95 and the positioning structure are at the same height, then the driving part is started, so that the third sliding seat 92 drives the positioning part 95 to move longitudinally until the positioning part 95 is matched with the positioning structure on the lower end surface of the support part 4, then the driving part continues to drive and pushes the support part 4 to move longitudinally to a preset position under the action of the positioning part 95 and the limiting structure, at this time, each end underframe 2 and the support part 4 of the piggyback car correspond to the installation positions of other loading and unloading yard devices, then, the end underframe 2 and the supporting part 4 can be lifted by the end underframe lifting device 7, the supporting part 4 is lifted by the supporting part lifting device 8 to be separated from the end underframe 2, and then the supporting part 4 is driven by the rotating device 400 to rotate to be connected with the slope transition device 200, so that the loading and unloading operation can be carried out.

That is, after the piggyback car reaches the loading and unloading yard and stops, the positions of the end underframe 2 and the support part 4 are not necessarily the preset positions, but are located within the preset distance range of the preset positions, and in this case, the longitudinal positioning device 9 provided by this embodiment can push the support part 4, so that the support part can be moved longitudinally to the preset positions to realize the precise positioning of the longitudinal positions of the end underframe 2 and the support part 4, which is convenient for the later actions of the end underframe lifting device 7, the support part lifting device 8, the rotating device 400, and the like. This vertical positioner 9's simple structure only needs to act through lift portion 94 and drive division for location portion 95 and the vertical location structure cooperation of support portion 4 and to support portion 4 promote can, simple structure, stability are good.

The preset range is a range with a certain distance from the preset position, the longitudinal positioning device 9 is fixedly arranged on the rail surface, when the position of the support part 4 is stopped in the preset range, the longitudinal positioning device 9 can be used for longitudinally positioning the support part, if the position exceeds the preset range, the acting stroke of the longitudinal positioning device 9 is exceeded, and the support part 4 cannot reach the preset position. Specifically, when the stop position of the tray 4 is within the preset range, the stop position may be at the front side of the preset position or at the rear side of the preset position, so that for the same loading and unloading vehicle yard, the longitudinal position of each tray 4 of the piggyback vehicle can be adjusted to reach the preset position by arranging one or more groups of two longitudinal positioning devices 9 which are oppositely arranged along the longitudinal direction, and the flexibility is better.

In the above embodiment, the positioning portion 95 includes the cross beam 951 and the positioning block 952 fixedly disposed on the cross beam 951, the two ends of the cross beam 951 are respectively provided with the third roller 953 capable of rolling along the lower end surface of the support portion 4, when the vehicle stops within the preset range, the positioning portion 95 and the positioning structure are in a disengaged state, then the lifting portion 94 acts on the positioning portion 95 to make the height of the positioning portion consistent with the height of the positioning structure, then the driving portion drives the third sliding seat 92 to drive the positioning portion 95 to slide to the process matched with the positioning structure, the positioning portion 95 is in a sliding state relative to the support portion 4, the arrangement of the third roller 953 can reduce the sliding friction between the positioning portion 95 and the lower end surface of the support portion 4 in the process, thereby reducing the friction and wear, and prolonging the service life.

The positioning block 952 and the positioning structure are not limited in particular, and as shown in fig. 111, in this embodiment, the positioning portion 95 is a triangular positioning block 952, and correspondingly, the longitudinal positioning structure can be a V-shaped notch or a recess of the transverse bracket of the holder 4, or the positioning block 952 can be a square block or a circular block.

In the above embodiment, the lifting portion 94 is an air spring provided on the third sliding seat 92, and due to the action of the bogie spring, when the tray portion 4 is in an unloaded state, the height of the lifting portion is the highest, and when the tray portion 4 is loaded with road vehicles, the height of the lifting portion is lower than that of the unloaded state, therefore, when the lifting portion 94 is provided as an air spring, the height after being inflated can be elastically adjusted, and the device can be adapted to different height requirements of the tray portion 4 in different states, and the applicability is better than that of a device with a rigid lifting height. Specifically, the lower end of the positioning portion 95 (the cross beam 951) may further be provided with an abutting plate 954 for abutting against the air spring, so as to increase the effective area between the two and improve the stability.

Further, the third sliding seat 92 is further provided with a swinging member, the swinging member includes a hinged end and an actuating end, wherein the hinged end is hinged to the third sliding seat 92, the top end of the air spring can push the actuating end to swing around the hinged end, and the beam 951 is fixedly arranged at the actuating end. That is, the air spring can push the operation end upward to rotate around the hinge end after being inflated, and when the air spring is exhausted, the operation end rotates around the hinge end and descends to the lowest position (as shown in fig. 107 and 108), and the arrangement of the swinging member can ensure the stability of the positioning portion 95 and simplify the whole structure.

Furthermore, the oscillating member includes two oscillating bars 96 disposed in parallel and at an interval, or in this embodiment, the oscillating member may be disposed as a whole plate structure, one side of the plate structure is hinged to the third sliding seat 92, and the other side is fixed to the cross beam 951, and the two oscillating bars 96 can simplify the overall structure and reduce the weight.

In the above embodiment, the driving part includes the third hydraulic cylinder 93 hinged to the third base 91, the end of the third piston rod 931 of the third hydraulic cylinder 93 is hinged to the positioning part 95, the third piston rod 931 of the third hydraulic cylinder 93 pushes and pulls the positioning part 95 so that the third sliding seat 92 and the positioning part 95 are slid in the longitudinal direction as a whole, alternatively, in this embodiment, the third piston rod 931 of the hydraulic rod may also be made to act on the third slide bearing 92, that is, when the third sliding seat 92 is directly pushed and pulled to drive the positioning portion 95 to slide along the longitudinal direction, and the third piston rod 931 of the third hydraulic cylinder 93 is hinged to the positioning portion 95, when the third piston rod 931 is in the retracted state, part of the third hydraulic cylinder 93 is located above the slide portion (between the two swing links 96), the distance between the end of the third sliding seat 92 and the end of the third seat 91 can be reduced, thus reducing the overall bulk of the longitudinal positioning device 9.

Or, in this embodiment, the driving portion may be configured to include a motor, a gear, and a rack, or may be configured to include a motor, a screw rod, and a nut, in which case, the driving portion may be fixedly disposed on the third base 91 and directly act on the third sliding seat 92 to enable the third sliding seat to longitudinally slide relative to the third base 91, and when the driving portion is configured to be the third hydraulic cylinder 93, the overall structure may be simplified, and the stability is better.

In the above embodiment, the longitudinal positioning device 9 further includes a limiting portion 97, the limiting portion 97 is used for limiting the lifting height of the action end, so that when the action end is lifted to the highest position (as shown in fig. 105 and 106), the positioning portion 95 can be matched with the positioning structure of the support portion 4 in the no-load state, so that when the air spring is inflated to push the positioning portion 95 upwards, the situation that the inflation spring is damaged due to too high inflation pressure can be avoided, and inflation protection is provided for the air spring.

Specifically, this spacing portion 97 includes first connecting rod 971 and second connecting rod 972 of articulated setting each other, wherein, as shown in fig. 110 and 111, third sliding seat 92 is equipped with first articulated seat 921, location portion 95 (crossbeam 951) is equipped with the articulated seat 9511 of second, the tip of first connecting rod 971 is articulated with first articulated seat 921, the tip of second connecting rod 972 is articulated with the articulated seat 9511 of second, can drive second connecting rod 972 through the action end and expand or fold for first connecting rod 971 when lift 94 goes up and down location portion 95. That is, when the lifting portion 94 lifts and lowers the positioning portion 95, the angle between the two links (the first link 971 and the second link 972) changes, and when the angle between the two is expanded to the maximum, the air spring is restrained. Alternatively, in this embodiment, the limiting portion 97 may be configured as a chain or a pull rope, and the air spring may be limited when the chain or the pull rope is in a straightened state. When the limiting portion 97 is hinged and foldable, the two connecting rods are folded after the air spring exhausts air, and the height of the two connecting rods is low, so that the descending of the positioning portion 95 is not hindered.

Further, this spacing portion 97 still includes the limit structure who locates first connecting rod 971 and/or second connecting rod 972, and this limit structure can restrict the biggest contained angle of pivoted between first connecting rod 971 and the second connecting rod 972, makes it be less than 180, so set up and can avoid the contained angle between two connecting rods to reach forming the dead point after 180, influence the decline of location portion 95. Specifically, one of the first link 971 and the second link 972 may be provided with a limiting structure, and when the two rotate to the maximum included angle, the limiting structure may abut against the other link to limit the another link to continue rotating, or the limiting structure may further include a limiting structure respectively disposed on the two links and adapted to each other, and when the included angle between the two reaches the maximum, the limiting structure may limit the another link to continue rotating.

In the above embodiment, as shown in fig. 109, the third base 91 is provided with the fifth slide rail 911 in the longitudinal direction, and the third slide seat 92 is provided with the slider 922 capable of sliding along the fifth slide rail 911, specifically, as shown in fig. 110 and 111, in the present embodiment, the fifth slide rail 911 is a slide groove provided in the third base 91, and the edge of the third slide seat 92 is provided with the slider 922 located in the slide groove and capable of sliding along the slide groove, or the slide groove may be provided on the upper end surface of the third base 91, and the lower end surface of the third slide seat 92 may be provided with the slider 922 capable of sliding along the slide groove. Of course, in this embodiment, the fifth sliding rail 911 may also be disposed as a strip-shaped hole or a sliding rail disposed along the longitudinal direction, and is not limited specifically herein.

Of course, in this embodiment, the fifth slide way 911 may be disposed on the third slide seat 92, the third base 91 can slide along the fifth slide way 911, and the third slide seat 92 can slide relative to the third base 91 because the third base 91 is fixedly disposed on the rail surface. When the fifth slide way 911 is disposed on the third base 91, the sliding continuity of the third slide base 92 can be ensured.

In addition, in this embodiment, the hinge connections between the above components may be implemented by pin shafts or round pins, and the pin shafts or round pins are limited by washers or cotter pins.

Brake pipe protector

The brake pipe is an important part of the railway vehicle, and needs to pass through the vehicle body in the longitudinal direction when being installed, and in the case of a piggyback vehicle, the brake pipe can interfere with the separation and installation of the support part due to the repeated separation and installation of the support part 4 and the body part 1, and once the interference occurs, the brake pipe can be damaged by the support part 4 in motion.

Therefore, the application also relates to a turnover type brake pipe protection device which comprises a protection shell and a brake pipe arranged on the protection shell, when the support part rises to be prepared to be separated from the body part, the protection shell can be transversely turned outwards in a vertical plane to avoid interference on the support part 4, and when the support part 4 falls to be arranged on the body part 1, the protection shell can be transversely turned inwards to return to an original position, so that the brake pipe can be better prevented from being interfered with the support part 4 in action, meanwhile, the protection shell can also protect the brake pipe, the brake pipe can be prevented from being in contact with the ground to generate abrasion leakage, and the turnover type brake pipe protection device has a positive effect on the driving safety of a piggyback vehicle.

Specifically, referring to fig. 74 to 81, fig. 74 is a structural view of the brake pipe guard, fig. 75 is an enlarged view of C in fig. 74, fig. 76 is an enlarged view of D in fig. 74, fig. 77 is an enlarged view of E in fig. 74, fig. 78 is a structural view of the brake pipe guard in a state where the holder portion and the body portion are connected, fig. 79 is an enlarged view of an encircled portion in fig. 78, fig. 80 is a structural view of the brake pipe guard in a state where the holder portion and the body portion are separated, fig. 81 is an enlarged view of an encircled portion in fig. 80, fig. 82 is a structural view of the first guard stopper and the second guard stopper provided to the holder, fig. 83 is a structural view of the first pivot plate, fig. 84 is a structural view of the second pivot plate, fig. 85 is a structural view of the guard partition plate, fig. 86 is a structural view of the pipe hanger plate.

As shown in fig. 78, the body of the piggyback car generally comprises a body portion 1 and a tray portion 4, and can be separated from the body portion 1 by rotating the tray portion 4 about the vertical direction or translating the tray portion 4 in the lateral direction. The brake pipe is arranged on the transverse outer side of the support part 4, and when the support part 4 is rotated around the vertical direction or the support part 4 is horizontally translated, the support part 44 needs to be lifted upwards for a certain distance in order to avoid the interference of the brake pipe. In order to shorten the lifting distance and protect the brake pipe, the invention designs a brake pipe protection device.

As shown in FIG. 74, the brake pipe guard 10 includes a guard housing 11, with a housing cavity of the guard housing 11 for receiving a brake pipe. The protective casing 11 is provided to protect the brake pipe on the one hand and to facilitate uniform movement of the brake pipe on the other hand. As shown in fig. 78, in the state where the holder 4 is connected to the main body 1, the protective housing 11 is located laterally outside the side wall 42 of the holder 4.

As shown in fig. 74, the brake pipe guard 10 further includes a guard connection 12. as shown in fig. 75, the guard connection 12 includes a guard inner end 12a, a guard outer end 12b, and a guard transition 12c therebetween. As shown in fig. 79, the protective inner end portion 12a is located below the holder 4 and may abut against the holder 4, specifically, the pressing plate 412d of the holder 4; the protective outer end portion 12b is located laterally outside the protective inner end portion 12a, and is rotatably connected to the body portion 1, specifically, may be rotatably connected to the holder 61 of the body portion 1.

As shown in fig. 79, in the process of connecting the supporting portion 4 with the body portion 1, the supporting force of the supporting portion 4 on the protective inner end portion 12a is gradually increased, so that the force applied to the protective inner end portion 12a is gradually greater than the gravity applied to the protective outer end portion 12b, at this time, the protective connecting member 12 rotates around the rotational connection position with the body portion 1 (as shown by the arrow in the figure), thereby driving the protective housing 11 to rotate upward and inward, so that the protective housing 11 is reset, and finally reaches the position shown in fig. 79.

As shown in fig. 81, in the process of separating the support part 4 from the main body 1, the abutting force of the support part 4 to the protection inner end 12a is gradually reduced, so that the force applied to the protection inner end 12a is gradually smaller than the gravity of the protection outer end 12b, at this time, the protection connecting member 12 rotates around the rotation connecting position with the main body 1 (as shown in the arrow direction in the figure) under the action of the gravity, thereby driving the protection housing 11 to rotate downward and outward, so that the height position of the protection housing 11 is lowered, and finally reaches the position shown in fig. 81. Here, when the brake pipe guard 10 is mounted, the position of the center of gravity thereof may be adjusted so that the center of gravity thereof may be distributed laterally outside the center of rotation, and thus, once the connection of the brake pipe guard 10 to the holder 4 is released, the rotation of the above-described form may be generated.

Since the height position of the protective housing 11 is lowered, the interference of the protective housing 11 with the holder 4 can be avoided only by lifting the holder 4 up by a short distance, so that the holder 4 can smoothly rotate in the vertical direction or translate in the lateral direction.

In summary, in the process of separating the support part 4 from the body part 1, the protective shell 11 can automatically rotate downwards and outwards to avoid the support part 4, so that the lifting distance of the support part 4 is effectively shortened; in the process of connecting the support part 4 and the body part 1, the protective shell 11 can be automatically reset. The lifting distance is shortened, and the protective shell 11 is automatically avoided and reset, so that the separation efficiency and the connection efficiency of the support part 4 and the body part 1 are improved.

Further, the brake protection device 10 may further include a first protection limiting member 13 (see fig. 79 and 82), the first protection limiting member 13 is fixed to the body portion 1, and specifically may be fixed to the support 61, when the protection housing 11 rotates downward and outward to a limit position, the protection connecting member 12 abuts against the first protection limiting member 13, so that a risk that the protection housing 11 is not easily reset due to excessive downward rotation can be prevented. In the figure, the first protection limiting part 13 is a block, and in practical implementation, the structure and shape thereof can be adjusted as required, and is not limited to the block.

Further, the brake pipe protecting device 10 may further include a magnetic member 14 (see fig. 74), and when the protecting housing 11 is located at the lateral outer side of the holder 4, the protecting housing 11 is magnetically attracted to the side wall 42 of the holder 4 through the magnetic member 14. This can alleviate the vehicle-mounted vibration of the brake guard, which is beneficial to prolonging the life of the brake guard 10.

In the illustrated embodiment, the magnetic member 14 is detachably fixed to the upper surface of the protective housing 11, and may be specifically fixed by bolts and nuts. The magnetic member 14 is fixed on the upper surface of the protective housing 11, so that the direction of the magnetic force applied to the protective housing 11 in the resetting process of the protective housing 11 is substantially consistent with the resetting direction of the protective housing 11, and the magnetic force can assist the resetting of the protective housing 11. The magnetic member 14 is detachably fixed to the protective housing 11, so that the magnetic member 14 can be replaced conveniently.

Furthermore, the brake pipe protecting device 10 may further include a second protecting and limiting member 15 (see fig. 81 and 82), and when the protecting housing 11 is restored to the lateral outside of the holder 4, the protecting and connecting member 12 abuts against the second protecting and limiting member 15. When the magnetic part 14 is arranged, when the support part 4 moves upwards, the protection connecting part 12 tends to move upwards along with the support part under the action of magnetic force, and the protection connecting part 12 can be prevented from moving upwards along with the support part 4 by arranging the second protection limiting part 15. In the figure, the second protection limiting member 15 is a block, and in actual implementation, the structure and the shape of the block can be adjusted as required, and the block is not limited to the block.

In the illustrated embodiment (see fig. 75), the protective connecting member 12 includes a first pivotal plate 121, a second pivotal plate 122 and a pivotal shaft 123. The first pivoting plate 121 and the second pivoting plate 122 are arranged at intervals along the longitudinal direction. As shown in fig. 79, the second pivotal plate 122 is closer to the holder 4 than the first pivotal plate 121. The support 61 is located between the first pivoting plate 121 and the second pivoting plate 122, and the pivoting shaft 123 sequentially passes through the first pivoting plate 121, the mounting hole 612 on the support 61 and the second pivoting plate 122, so as to connect the three together, thereby realizing the rotational connection between the protective connecting member 12 and the body portion 1. The structure has high connection reliability, and is not limited to the structure in practical implementation.

In the illustrated scheme, one end of the pivot shaft 123 is provided with a limiting head (not visible in the drawing), the other end of the pivot shaft is provided with a radial hole, the limiting pin 1231 penetrates through the radial hole, and the first pivot plate 121 and the second pivot plate 122 are located between the limiting head and the limiting pin 1231, so that the pivot shaft 123 can be axially limited, and the connection reliability between the protective connecting piece 12 and the body portion 1 can be further improved.

In the illustrated embodiment, the shielding connecting member 12 further includes a shielding roller 125, and the shielding roller 125 is rotatably connected to the second pivoting plate 122. As shown in fig. 79, the second pivoting plate 122 extends to the lower side of the pressing plate 412d, and the outer circumferential surface of the guard roller 125 abuts against the lower surface of the pressing plate 412d, thereby abutting the guard link 12 against the holder 4. By arranging the protection roller 125, abrasion of the protection connecting piece 12 in the process of abutting against the support part 4 can be relieved.

In the illustrated embodiment (see fig. 75), a fixing shaft 124 is provided, one end of the fixing shaft 124 is fixed to the second pivoting plate 122, and may be welded, and a retaining ring (not shown) is fixed to the other end of the fixing shaft 124, and the protective roller 125 is rotatably disposed around the fixing shaft 124 and between the retaining ring and the second pivoting plate 122, and the retaining ring and the second pivoting plate 122 may prevent the protective roller 125 from being separated from the fixing shaft 124.

In the illustrated embodiment (see fig. 74 and 75), the front end and the rear end of the protective housing 11 are not provided with end plates, and the front end and the rear end of the protective housing 11 are blocked by the protective connecting member 12, which facilitates the light weight of the brake pipe protective device 10. In detail, the front end of the protection housing 11 is blocked by a first pivot plate 121 and a second pivot plate 122, the rear end is blocked by another first pivot plate 121 and another second pivot plate 122, and the first pivot plate 121 and the second pivot plate 122 are both provided with a protection through hole 12d for the brake pipe to pass through. In the drawings (see fig. 83 and 84), two protection through holes 12d are respectively formed in the first pivoting plate 121 and the second pivoting plate 122, and the two protection through holes 12d are arranged in a staggered manner in the vertical direction. In practical implementation, the number and arrangement of the protective vias 12d are not limited to this.

In the illustrated embodiment (see fig. 74), the containment vessel 11 includes a C-shaped containment beam 111, a plurality of containment closure plates 112, and a plurality of tubular hanger assemblies 113. Each protective closing plate 112 is fixed to the open side of the C-shaped beam in a blocking manner, and may be welded, and each protective closing plate 112 is spaced apart from each other along the length direction (i.e., longitudinal direction) of the C-shaped beam 111, so that a mounting opening is formed between adjacent protective closing plates 112, and the mounting opening is used for mounting a pipe hanger assembly 113.

Specifically, as shown in fig. 76 and 77, each set of pipe hanger assemblies 113 includes two protective partitions 1131 and two pipe hanger plates 1132. The two protective partitions 1131 are fixed inside the C-shaped protective beam 111, and may be specifically welded and fixed, and the two protective partitions 1131 are spaced from each other along the length direction (i.e., longitudinal direction) of the C-shaped protective beam 111. The two tube hanger plates 1132 are fixed to the two protective partitions 1131 in a one-to-one correspondence and are located between the two protective partitions 1131. In fig. 77, a pipe hanger connecting plate 1133 is further provided.

Specifically, as shown in fig. 85, the protective partition 1131 is provided with a pipe hole through which the brake pipe passes, and the brake pipe sequentially passes through the pipe holes on the protective partitions 1131, so that the shake of the brake pipe in the protective housing 11 can be reduced, which is beneficial to improving the protection effect and relieving the vibration of the vehicle.

Specifically, as shown in fig. 86, the pipe hanger plate 1132 is provided with a seat hole for a threaded fastener to pass through. As shown in fig. 87, the pipe hanger connecting plate 1133 is provided with a connecting hole for a threaded fastener to pass through. In fig. 76, the seat holes of the two pipe hanger plates 1132 are aligned so that the threaded fasteners pass through the two pipe hanger plates 1132 in sequence, and in fig. 77, the connection holes of the pipe hanger connection plate 1133 are aligned with the seat holes of the pipe hanger plates 1132 so that the threaded fasteners pass through the pipe hanger connection plate 1133 and the pipe hanger plates 1132 in sequence.

In the illustrated embodiment (see fig. 74), three sets of pipe hanger assemblies 113 are provided, the pipe hanger assemblies 113 on both sides have the same structure (the structure shown in fig. 76), and one pipe hanger connecting plate 1133 is provided in the middle pipe hanger assembly more than the pipe hanger assemblies on both sides.

The part of the brake pipe 20 located in the protective shell 11 is a rigid pipe, the pipe section located outside the protective shell 11 is a flexible pipe, two ends of the rigid pipe are respectively communicated with the two flexible pipes, one end of the flexible pipe communicated with the rigid pipe is provided with a flange joint 201, and the flexible pipe is fixed on the brake pipe protective device 10 through the flange joint 201. In a specific embodiment, the first pivotal plate 121 is provided with a flange connection hole, and the flange connector 201 is fixed on the first pivotal plate 121 (see fig. 79). The brake pipe can adapt to frequent overturning of the protective shell 11, is not easy to break and has high reliability.

Specifically, the rigid pipe can be a whole section of pipe, or can be formed by connecting a plurality of sections of rigid pipe sections through flanges or quick connectors. Each flexible pipe can be a whole section of pipe or can be formed by connecting a plurality of sections of flexible pipe sections through flanges or quick connectors.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A rotary loading and unloading goods piggyback transportation system comprises a piggyback car and ground equipment, wherein the piggyback car comprises a car body, the car body comprises a body part (1) and a support part (4), and the rotary loading and unloading goods piggyback transportation system is characterized in that the body part (1) comprises at least one body unit, the body unit comprises two end part frames, and a separable support part (4) is arranged between the two end part frames;

the ground equipment comprises a rotating device, two groups of end frame lifting parts, a supporting part lifting part and two groups of slope transition devices (200) arranged outside the track (100);

the two groups of end part frame lifting parts can respectively lift the end part frames at two ends of the supporting part (4);

the supporting part lifting part can lift the supporting part (4) to separate the supporting part (4) from the two end frames;

when the support part (4) and the end part frame are in a separation state, the rotating device (400) can drive the support part (4) to rotate around the rotation axis of the support part, and when the support part (4) rotates to a preset angle, two ends of the support part (4) can be respectively connected with the two groups of slope transition devices (200).

2. The piggyback transport system of rotary handling cargo according to claim 1, further comprising a limit stop (210) disposed on the ground, wherein when said bracket (4) rotates to abut against said limit stop (210), both ends of said bracket (4) can be engaged with said ramp transition device (200), respectively.

3. The piggyback transport system of rotary handling cargo according to claim 1, wherein said two sets of said lifting portions act on the longitudinal ends of said lifting portions (4), respectively, said lifting portions of said lifting portions comprise lifting devices (8) of said lifting portions of said lifting;

the rotating device comprises a driving wheel (87) arranged on the second supporting seat (82), and the driving wheel (87) is abutted against the lower end face of the support part (4) and can push the support part (4) to rotate around the rotation axis of the support part.

4. The piggyback transport system of claim 3, wherein said support mechanism includes a support disposed below said second support (82);

the second base (81) is provided with a third slide way (811), and the second supporting seat (82) is provided with a fourth slide way (821);

the supporting part comprises two groups of second supporting components (84) which are symmetrically arranged, each second supporting component (84) comprises a third supporting rod (841) and a fourth supporting rod (842) which are arranged in a crossed mode, the top end of each third supporting rod (841) is hinged to the corresponding second supporting seat (82), the bottom end of each third supporting rod (841) can slide along the corresponding third sliding way (811), the bottom end of each fourth supporting rod (842) is hinged to the corresponding second base (81), and the top end of each fourth supporting rod (842) can slide along the corresponding fourth sliding way (821);

the drive mechanism is capable of acting on the second support member (84) to change the angle between the third support bar (841) and the fourth support bar (842).

5. The piggyback transport system of claim 4, wherein said drive mechanism comprises a second drive member and a second locking assembly (832), said second drive member being disposed on said second base (81) and being capable of acting on a second support assembly (84) to change the angle between said third support rod (841) and said fourth support rod (842), and said second locking assembly (832) being capable of locking the relative positions of said third support rod (841) and said fourth support rod (842) when the angle between said third support rod (841) and said fourth support rod (842) is minimized.

6. The piggyback transport system of claim 5, wherein said second locking assembly (832) comprises a second push rod (833) and a second rocker (834), said second base (81) further provided with a second pin seat (812);

the second push rod (833) comprises a third section (8331), a second bend (8333) and a fourth section (8332) which are sequentially arranged, the end part of the third section (8331) is hinged with the bottom end of the third supporting rod (841) and can slide along the third slide way (811), and the second bend (8333) is hinged with the second driving piece (831);

one end of the second rocker (834) is hinged with the end of the fourth section (8332), and the other end is hinged with the second pin seat (812);

the second driving piece can act on the second bend (8333) to enable the second rocker (834) to rotate around the second pin seat (812) and drive the bottom end of the third supporting rod (841) to slide along the third slideway (811), when the included angle between the third supporting rod (841) and the fourth supporting rod (842) reaches the minimum, the second bend (8333) is located above the second pin seat (812).

7. The piggyback transport system of rotary handling cargo according to claim 6, wherein the end of the third section (8331) of the second push rod (833) is provided with a connecting shaft, the connecting shaft is sleeved with a second roller (8335), the second base (81) is further provided with a second rolling plate (813), and when the end of the third section (8331) slides along the third slideway (811), the second roller (8335) can roll along the second rolling plate (813).

8. The piggyback transport system of claim 6, wherein said support further comprises a second upper sliding shaft (85) and a second roller (851) sleeved outside said second upper sliding shaft (85);

the second upper sliding shaft (85) penetrates through the top ends of fourth supporting rods (842) of the second supporting assemblies (84) which are symmetrically arranged and can slide along the fourth slide ways (821), and the second rolling sleeve (851) is positioned between the two fourth supporting rods (842) and is abutted against and rolled on the second supporting seat (82).

9. The piggyback transport system of claim 8, wherein said support further comprises a second lower sliding shaft (86);

the second lower sliding shaft (86) penetrates through the bottom end of a third supporting rod (841) of the second supporting assembly (84) and a third section (8331) of the second push rod (833) which are symmetrically arranged, and can slide along the third slide way (811).

10. The piggyback transportation system of claim 3, wherein said rotation device (400) further comprises two sets of power wheel sets, said two sets of power wheel sets can drive said support (4) to rotate from two ends, said power wheel sets comprise a driving wheel (410) and a driven wheel (420) spaced on the ground, said driving wheel (410) is disposed near one side of the track (100), said support (4) can rotate to cooperate with said power wheel sets under the driving action of said driving wheel (87).

11. The piggyback transport system of rotary handling cargo according to any one of claims 1 to 10, wherein said tray portion (4) is provided at both longitudinal ends with a connecting structure comprising an upper hook (421) and a lower circular shaft (412c) extending in a transverse direction;

the end part is provided with an end part connecting mechanism (22), the end part connecting mechanism (22) comprises an end part connecting hook (221) and an end part longitudinal supporting piece (222), the end part connecting hook (221) forms an upward hook opening, in an assembling state, the lower circular shaft (412c) can be hung and leaned on the hook opening of the end part connecting hook (221), and the upper hook (421) can be clamped on the end part longitudinal supporting piece (222).

12. The piggyback transport system of claim 11, wherein said inner hook surface of said end connection hook (221) is provided with an end groove (221a) extending in the transverse direction, the inner surface of said end groove (221a) forms an end guide surface for guiding the sliding-in of said lower circular shaft (412c), and said end guide surface can also cooperate with said lower circular shaft (412c) to guide the rotational separation of said bracket (4) from said end frame.

13. The piggyback transport system of claim 12, wherein said end longitudinal support (222) comprises an end longitudinal support body (222a) and end wear plates (222b) fixed to the front and rear ends of said end longitudinal support body (222a), said end longitudinal support body (222a) being hooked by said upper hook (421), and in a hooked state, said end wear plate (222b) of the front end abuts against the front side of the inner hook surface of said upper hook (421), and said end wear plate (222b) of the rear end abuts against the rear side of the inner hook surface of said upper hook (421).

14. The rotary lift truck piggyback transport system of claim 12 wherein said end connection mechanism (22) further comprises:

an end lateral stop (223), said end lateral stop (223) being located above said end connection hook (221) and in front of said end longitudinal support (222); the end part transverse limiting part (223) comprises an end part transverse limiting groove (223a), and the end part transverse limiting groove (223a) is used for being matched with the guide limiting part (422) of the support part (4) to guide the installation of the support part (4) and form the transverse limiting of the support part (4).

15. The piggyback transport system of rotary handling cargo of claim 12, wherein said end frame is further mounted with a locking mechanism (5) for locking or unlocking said tray (4) in an up-down direction; and/or the presence of a gas in the gas,

the end frame is further provided with a transverse stopping mechanism (6), the transverse stopping mechanism (6) can stop the support part (4) transversely in a stopping state, and the transverse stopping mechanism (6) can release stopping of the support part (4) in a stopping state.

16. The piggyback transport system of rotary handling cargo of claim 15, wherein said end connection hook (221) comprises an end hook body (221b), said end hook body (221b) comprising two end hook sub-bodies (221b-1) arranged laterally at a spacing and an end receiving cavity (221b-2) formed between said two end hook sub-bodies (221b-1), said locking mechanism (5) being mounted to said end receiving cavity (221 b-2); and/or the presence of a gas in the gas,

the transverse stopping mechanism (6) is arranged on the transverse outer side of the end connecting hook (221).

17. The rotary lift truck piggyback transport system of claim 16 wherein said locking mechanism (5) comprises:

the first lock body (51), the first lock body (51) is hinged with the end connecting hook (221), one end of the first lock body (51) is a locking end (511), the other end of the first lock body is a first limiting end (512), and a third hinge shaft (52) of the first lock body (51) is positioned between the locking end (511) and the first limiting end (512);

a first stopper portion (53), the first stopper portion (53) being fixed in the end receiving cavity (221 b-2);

a first lock actuation beam assembly (54) coupled to the first lock body (51);

in a locking state, the first limiting end part (512) abuts against the first limiting part (53) from top to bottom, and the locking end part (511) abuts against the support part (4) to lock the support part (4); in an unlocking state, the first locking driving beam assembly (54) can drive the first limiting end part (512) to be separated from the first limiting part (53) from bottom to top, and the locking end part (511) is rotated to be separated from the support part (4).

18. The piggyback transport system of claim 17, wherein said first lock drive beam assembly (54) comprises a first push beam (541), a first guide sleeve (542), and a drive beam (543), said first guide sleeve (542) being fixed within said end receiving cavity (221b-2), said first push beam (541) being slidably connected to said first guide sleeve (542), said drive beam (543) being hinged at one end to said first lock body (51) and at the other end to said first push beam (541).

19. The piggyback transport system of claim 18, further comprising a first resilient member (541b), one end of said first resilient member (541b) interacting with said first push beam (541), the unlocking process being a process of increasing the deformation amount of said first resilient member (541 b).

20. The piggyback transport system of rotary handling cargo of claim 17, wherein said locking mechanism (5) further comprises a second limit portion (55), said second limit portion (55) being fixed in said end receiving cavity (221b-2), said first lock body (51) further comprising a second limit end portion (514), said second limit end portion (514) abutting said second limit portion (55) from bottom to top in a locked state.

21. The rotary lift truck piggyback transport system of claim 16 wherein said locking mechanism (5) comprises:

a lock head (51 '), the lock head (51 ') being rotatably coupled to the end connection hook (221), the lock head (51 ') being provided with a locking portion (511 ') and a supporting portion (512 ') at both sides of a rotation center line thereof, respectively;

a second latch body (52 '), said second latch body (52') slidably coupled to said end coupling hook (221);

a second locking driving component (53 ') which is in transmission connection with the second lock body (52');

in a locked state, the second lock body (52 ') is supported by the support part (512 ') from bottom to top so that the locking part (511 ') presses the holder part (4); in an unlocked state, the second locking driving assembly (53 ') can drive the second lock body (52 ') to displace in a direction away from the lock head (51 '), and the support portion (512 ') can rotate downwards around the rotation center line, so that the locking portion (511 ') rotates upwards to be separated from the support portion (4).

22. The piggyback transport system of claim 21, wherein said second latching drive assembly (53 ') comprises a second push beam (531'), a second guide housing (532 '), and a link beam unit (533'), said second guide housing (532 ') being fixed within said end receiving cavity (221b-2), said second push beam (531') being slidably connected to said second guide housing (532 '), one end of said link beam unit (533') being hinged to said second push beam (531 ') and the other end being hinged to said second lock body (52').

23. The piggyback transport system of claim 22, further comprising a second elastic member (531b '), one end of said second elastic member (531 b') interacting with said second push beam (531 '), the unlocking process being a process in which the deformation amount of said second elastic member (531 b') is increased.

24. The piggyback transport system of rotary handling cargo according to claim 22, wherein said locking mechanism (5) further comprises a rotary support body (54 '), said rotary support body (54 ') being fixed to said end connection hook (221), said rotary support body (54 ') being provided with a rotary shaft portion (541 '), said rotary shaft portion (541 ') having an arc-shaped cylindrical surface, said lock head (51) being provided with an arc-shaped notch (513 ') matching said rotary shaft portion (541 '), said lock head (51 ') being inserted into said rotary shaft portion (541 ') with said arc-shaped notch (513 ') and being capable of taking a central axis of said rotary shaft portion (541 ') as said rotation center line.

25. The piggyback transport system of claim 21, wherein said lock (51 ') has a center of gravity longitudinally offset from said center line of rotation and located on the side of said support (512'); and/or the presence of a gas in the gas,

the locking device further comprises a third elastic piece, and the locking process is a process of increasing the deformation amount of the third elastic piece.

26. The piggyback transport system of rotary handling cargo of claim 16 wherein said lateral stop mechanism (6) comprises:

the support (61), the support (61) is fixed on the end connecting hook (221), and the support (61) is provided with a through hole (611);

a first stopper beam (62);

the stop driving beam assembly (63) is in transmission connection with the first stop beam (62);

in the stopping state, the first stopping beam (62) extends out of the through hole (611) to form a transverse stopping for the support part (4); in the gear-releasing state, the stop driving beam assembly (63) can drive the first stop beam (62) to retract so as to release the stop of the support part (4).

27. The piggyback transport system of claim 26, further comprising a fourth resilient member (64), said fourth resilient member (64) acting on said first stop beam (62), the unblocking process being a process in which an amount of deformation of said resilient member (64) is increased.

28. The piggyback transport system of rotary handling cargo of claim 26 wherein said stop drive beam assembly (63) comprises a first link beam (631) hingedly disposed, one end of said first link beam (631) being a first stop drive end (6311) and the other end being a connecting end (6312), said first link beam (631) having a first hinge shaft (633) fixedly disposed between said first stop drive end (6311) and said connecting end (6312), said connecting end (6312) being drivingly connected to said stop beam (62).

29. The piggyback transport system of rotary handling cargo of claim 16 wherein said lateral stop mechanism (6) comprises:

a second stopper beam (61 ') hingedly disposed, both ends of the second stopper beam (61 ') being a second stopper driving end (611 ') and a stopper end (612 '), respectively, a hinge shaft (613 ') of the second stopper beam (61 ') being located between the second stopper driving end (611 ') and the stopper end (612 '), and the hinge shaft (613 ') being fixed to the end connection hook (221);

the limiting beam (62') is fixed on the end connecting hook (221);

in the stopping state, the limiting beam (62 ') is propped against the outer side of the second stopping beam (61 ') along the transverse direction, and the second stopping beam (61 ') can form a transverse stopping for the support part (4); in the gear-releasing state, the second stop driving end (611 ') is forced to rotate so as to drive the stop end (612') to release the stop of the support part (4).

30. The piggyback transport system of claim 29, wherein said lateral stop mechanism (6) further comprises a first stop member (63 ') and a second stop member (64'), said first stop member (63 ') and said second stop member (64') both being fixed to said end connection hook (221), said second stop beam (61 ') abutting said first stop member (63') in a disengaged state, and said second stop beam (61 ') abutting said second stop member (64') in a stopped state.

31. The piggyback transport system of rotary handling cargo of claim 16, wherein said end connection hook (221) further comprises an end hook wall plate (221c) covering an outer hook face of said end hook body (221b), said end hook wall plate (221c) being provided with an end first connection hole (221d), said end first connection hole (221d) communicating with said end receiving cavity (221 b-2);

tip frame lifting unit is equipped with first unblock portion (77), first unblock portion (77) are in the tip frame lifting unit is lifted the time can be passed through the first connecting hole of tip (221d) stretch into in the tip holds chamber (221b-2), in order to right locking mechanism (5) unblock.

32. The piggyback transport system of claim 16, wherein said end frame lifting means comprises two end frame lifting devices (7) respectively located on both sides of said track (100), said end frame lifting devices (7) comprising a first base (71), a first support seat (72) and a driving mechanism, both sides of said first support seat (72) being connected to said first base (71) by a first support assembly (74), respectively;

the first base (71) is provided with a first slideway (711), and the first supporting seat (72) is provided with a second slideway (721);

the first supporting component (74) comprises a first supporting rod (741) and a second supporting rod (742) which are arranged in a crossed manner, the top end of the first supporting rod (741) is hinged with the first supporting seat (72), the bottom end of the first supporting rod (741) can slide along the first slideway (711), the bottom end of the second supporting rod (742) is hinged with the first base (71), and the top end of the second supporting rod (742) can slide along the second slideway (721);

the drive mechanism is capable of acting on the first support assembly (74) to vary the angle between the first support rod (741) and the second support rod (742).

33. The piggyback transport system of claim 32, wherein said drive mechanism comprises a first driving member (731) and a first locking member (732), said first driving member (731) being disposed on said first base (71) and being capable of acting on said first support member (74) to change the angle between said first support rod (741) and said second support rod (742), and said first locking member (732) being capable of locking the relative positions of said first support rod (741) and said second support rod (742) when the angle between said first support rod (741) and said second support rod (742) is minimized.

34. The piggyback transport system of claim 33, wherein said first locking assembly (732) comprises a first push rod (733) and a first rocker (734), said first base (71) further provided with a first pin seat (712);

the first push rod (733) comprises a first section (7331), a first bend (7333) and a second section (7332), the first section (7331) is hinged to the bottom end of the first supporting rod (741) and can slide along the first slideway (711), and the first bend (7333) is hinged to the first driving piece (731);

one end of the first rocker (734) is hinged with the end of the second section (7332), and the other end is hinged with the first pin seat (712);

the first driving part (731) can act on the first bend (7333) to enable the first rocker (734) to rotate around the first pin seat (712) and drive the bottom end of the first supporting rod (741) to slide along the first slideway (711), and when the included angle between the first supporting rod (741) and the second supporting rod (742) is minimum, the first bend (7333) is located above the first pin seat (712).

35. The piggyback transport system of claim 34, wherein said first section (7331) has a connecting shaft at its end, said connecting shaft is sleeved with a first roller (7335), said first base (71) further has a first roller plate (713), said first roller (7335) can roll along said first roller plate (713) when said first section (7331) end slides along said first slideway (711).

36. The piggyback transport system of rotary handling cargo of claim 34, wherein said end frame lifting means (7) further comprises a first upper sliding shaft (75) and a first roller (751) sleeved outside said first upper sliding shaft (75);

first supporting component (74) symmetry setting of first supporting seat (72) both sides, first last sliding shaft (75) pass the symmetry setting the top of second bracing piece (742) of first supporting component (74) and can follow second slide (721) slide, first roll cover (751) are located two between second bracing piece (742) and with first supporting seat (72) butt rolls.

37. The piggyback transport system of rotary handling cargo of claim 36, wherein said end frame lifting device (7) further comprises a first lower sliding shaft (76), said first lower sliding shaft (76) passing through the bottom end of a first support rod (741) of said first support assembly (74) and a first section (7331) of said first push rod (733) being symmetrically disposed and being slidable along said first slide (711); and/or the presence of a gas in the gas,

each group two of tip frame lifting units one of tip frame lifting devices (7) is equipped with second unblock portion (78), second unblock portion (78) are in can unblock horizontal stop mechanism (6) of corresponding side when tip frame lifting units lifts, moreover, two groups be equipped with in the tip frame lifting units the tip frame lifting devices (7) are located respectively the horizontal different sides of track (100).

38. The piggyback transport system of rotary handling cargo of any of claims 1-10, wherein said upper hook (421) and said end rack's clamping face comprises a top section (421a) and two side sections (421 b);

in the two side surface sections (421b), the first one is a vertical surface, and the second one is an inclined surface which is inclined from top to bottom along the direction away from the first one; or the two side surface sections (421b) are inclined surfaces which are inclined from top to bottom along the direction far away from each other;

two side sections (421b) are provided with support wearing plates (421c), and a shear-resisting stop structure is arranged between each support wearing plate (421c) and the side section (421 b).

39. The piggyback transport system of rotary loader/unloader according to any one of claims 1 to 10, wherein the tray (4) comprises a bottom wall (41) and two side walls (42) connected to the bottom wall (41), both longitudinal ends of the two side walls (42) being provided with the upper hooks (421);

the side wall (42) is further provided with a guide limiting piece (422) which is matched with the limiting guide piece of the body part (1) to guide the installation of the support part (4) and form the transverse limiting of the support part (4).

40. The piggyback transport system of claim 39, wherein said bottom wall (41) comprises a middle wall (411) and end walls (412) located at both longitudinal sides of said middle wall (411), said end walls (412) comprising a main body portion (412a) and a connecting portion (412b), said main body portion (412a) being of a box-like structure, said lower circular shaft (412c) being mounted to an end of said main body portion (412a) remote from said middle wall (411);

the middle wall body (411) comprises two longitudinal beams (411a) arranged at intervals along the transverse direction, the two longitudinal beams (411a) are connected through a plurality of transverse beams (411b) arranged at intervals along the longitudinal direction, the longitudinal beams (411a) comprise flat beam sections (411a-1) and grid beam sections (411a-2), the flat beam sections (411a-1) comprise flat plates (411a-1a) and a plurality of reinforcing beams (411a-1b) arranged at the bottoms of the flat plates (411a-1a), and the grid beam sections (411a-2) comprise a plurality of small cross beams (411a-2a) arranged at intervals along the longitudinal direction;

the bottom wall (41) further comprises an inclined wall body (413) which gradually inclines upwards from inside to outside, and the inclined wall body (413) is located on two transverse sides of the middle wall body (411) and used for being connected with the middle wall body (411) and the side wall (42).

41. The piggyback transport system of claim 39 wherein said bottom wall (41) is further provided with a longitudinal locating structure;

the ground equipment further comprises a longitudinal positioning device (9) arranged in the track (100), wherein the longitudinal positioning device (9) comprises a base (91), a sliding seat (92), a driving part, a lifting part (94) and a positioning part (95);

the driving part can drive the sliding seat (92) to slide along the longitudinal direction relative to the base (91), the positioning part (95) and the lifting part (94) are arranged on the sliding seat (92), the positioning part (95) is matched with the longitudinal positioning structure, and the lifting part (94) can lift the positioning part (95);

when the positioning part (95) is in a lifting state, the driving part can drive the sliding seat (92) to drive the positioning part (95) to slide along the longitudinal direction to be matched with the longitudinal positioning structure, and the support part (4) is pushed to move along the longitudinal direction to a preset position.

42. The piggyback transport system of claim 41, wherein said positioning part (95) comprises a cross beam (951) and a positioning block (952) fixed on said cross beam (951), and two ends of said cross beam (951) are respectively provided with a roller (953) capable of rolling along the lower end surface of said support part (4).

43. The piggyback transport system of claim 42, wherein said lift portion (94) is an air spring provided to said slide seat (92); and/or the presence of a gas in the gas,

the sliding seat (92) is further provided with a swinging piece, the swinging piece comprises a hinged end and an action end, the hinged end is hinged to the sliding seat (92), the top end of the air spring can push the action end to enable the action end to swing around the hinged end, and the cross beam (951) is fixedly arranged at the action end.

44. The piggyback transport system of claim 43, wherein said longitudinal positioning device (9) further comprises a limiting portion (97) disposed on said sliding seat (92), said limiting portion (97) comprises a first link (971) and a second link (972) hinged to each other, an end of said first link (971) is hinged to said sliding seat (92), an end of said second link (972) is hinged to said positioning portion (95), and said lifting portion (94) can drive said first link (971) to unfold or fold relative to said second link (972) through said actuating end when said positioning portion (95) is lifted.

45. The piggyback transport system of claim 44, wherein said stop portion (97) further comprises a stop structure provided to said first link (971) and/or said second link (972) to limit the maximum angle between said first link (971) and said second link (972).

46. The piggyback transport system of rotary handling cargo of claim 39, wherein said bottom wall (41) is further provided with a rotary center plug portion (411 b-1);

the ground equipment further comprises a rotary positioning device (300) which is arranged in the track (100) and comprises a lifting mechanism and a positioning shaft arranged at the top end of the lifting mechanism, wherein the positioning shaft is matched with the rotary center inserting part (411 b-1).

47. The rotary load and unload piggyback transport system according to any one of claims 1-10, further comprising a brake pipe guard (10), said brake pipe guard (10) comprising:

the protective shell (11) is used for containing a brake pipe, and the protective shell (11) is positioned on the transverse outer side of the support part (4) when the support part (4) and the body part (1) of the piggyback car are connected;

the protective connecting piece (12) is provided with a protective inner end part (12a) positioned on the lower side of the support part (4), a protective outer end part (12b) positioned on the transverse outer side of the protective inner end part (12a), and a protective switching part (12c) positioned between the protective inner end part (12a) and the protective outer end part (12 b);

the protection inner end portion (12a) is abutted to the support portion (4), the protection outer end portion (12b) is fixedly connected with the protection shell (11), the protection switching portion (12c) is rotatably connected with the body portion (1), so that in the separation process of the support portion (4) and the body portion (1), the protection connecting piece (12) can rotate under the action of gravity and drive the protection shell (11) to rotate outwards, and in the connection process of the support portion (4) and the body portion (1), the protection connecting piece (12) can rotate under the abutting action of the support portion (4) and drive the protection shell (11) to reset to the transverse outer side of the support portion (4).

48. The piggyback transport system of claim 47, wherein said protective link (12) comprises a first pivoting plate (121), a second pivoting plate (122) and a pivoting shaft (123), said first pivoting plate (121) and said second pivoting plate (122) being longitudinally spaced apart from each other, said second pivoting plate (122) being closer to said tray (4) than said first pivoting plate (121); the pivoting shaft (123) sequentially penetrates through the first pivoting plate (121), the body part (1) and the second pivoting plate (122) to connect the first pivoting plate, the body part and the second pivoting plate together.

49. The piggyback transport system of claim 48, wherein said guard link (12) further comprises a guard roller (125), said guard roller (125) being rotatably connected to said second pivot plate (122), said second pivot plate (122) extending to the underside of said bracket (4) such that the outer peripheral surface of said guard roller (125) abuts the lower surface of said bracket (4).

50. The piggyback transport system of rotary handling cargo of claim 47, wherein said brake pipe guard further comprises a first guard limit (13), said first guard limit (13) being fixed to said body (1), said guard link (12) interfering with said first guard limit (13) when said guard housing (11) is rotated downward and outward to an extreme position.

51. The piggyback transport system of claim 47, wherein said brake pipe guard further comprises a magnetic member (14), said guard housing (11) magnetically engaging said tray (4) through said magnetic member (14) when said guard housing (11) is laterally outboard of said tray (4).

52. The rotary lift truck piggyback transport system of any one of claims 1 to 10, wherein said body section comprises a said body unit having a bogie disposed below each of said end frames of said body unit; alternatively, the first and second electrodes may be,

the body part (1) comprises two body units, two end frames of each body unit are respectively an end underframe (2) and a joint underframe subsection (3a), the two joint underframe subsections (3a) of the two body units are connected through joints to form a joint underframe (3) in a combined mode, and a bogie is arranged below each of the joint underframe (3) and the two end underframe subsections (2).