CN111301446B

CN111301446B - A station equipment system for rotating piggyback loading and unloading vehicles

Info

Publication number: CN111301446B
Application number: CN202010130659.4A
Authority: CN
Inventors: 付勇; 吴振国; 袁博; 吴荣坤; 郑和平; 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: 2025-02-18
Anticipated expiration: 2040-02-28
Also published as: CN111301446A

Abstract

The present invention relates to a station equipment system for a rotary piggyback loading and unloading vehicle, which comprises a rotating device, two sets of end chassis lifting parts, two sets of support lifting parts and two sets of slope transition devices arranged outside the track; the two sets of end chassis lifting parts can respectively lift the end chassis at both ends of the support; the two sets of support lifting parts can respectively lift the two ends of the support to separate the support from the end chassis; when the support is in a disengaged state from the end chassis, the rotating device can drive the support to rotate around its rotation axis, and when the support rotates to a preset angle, the two ends of the support can respectively engage with the two sets of slope transition devices. The support of the rotary piggyback parked at the loading and unloading station can be separated and installed from the main body, simplifying the overall structure of the rotary piggyback, achieving lightweight and reducing costs.

Description

Station equipment system of rotary type piggyback truck loading and unloading vehicle

Technical Field

The invention relates to the technical field of piggyback vehicles, in particular to a station equipment system of a rotary type piggyback loading and unloading vehicle.

Background

Piggyback transportation refers to a convenient transportation mode that a highway truck, a semitrailer or other highway vehicles load cargoes and then automatically drive the piggyback truck at a railway station at an origin and finish long-distance transportation through a railway, and after the highway vehicles reach a railway station at a destination, the highway vehicles can automatically drive the piggyback truck down and drive to the final destination.

The body of the piggyback car can generally comprise a body part and a separable supporting part, when the car is assembled and disassembled, the supporting part can be rotated and separated from the body part, so that the road car can be conveniently opened and closed, and after the car is assembled and disassembled, the supporting part can be installed on the body part. If the driving mechanisms for driving the supporting portions to rotate from the body portion and separate from each other are provided in the vehicle body, the overall structure of the vehicle body is more complicated, and the weight and cost of the vehicle body can be increased.

Therefore, how to arrange a station yard equipment system suitable for a rotary piggyback truck in a loading and unloading station yard, the rotary separation and installation of the supporting part of the rotary piggyback truck parked in the loading and unloading station yard from the body part can be realized, the integral structure of the rotary piggyback truck is simplified, the light weight is realized, and the cost is reduced, so that the rotary piggyback truck is a technical problem required to be solved by a person skilled in the art.

Disclosure of Invention

The invention aims to provide a station equipment system of a rotary piggyback truck, which can realize the rotary separation and installation of a supporting part of the rotary piggyback truck parked at a station of the truck from a body part, simplify the integral structure of the rotary piggyback truck, realize light weight and reduce cost.

The invention provides a station equipment system of a rotary piggyback truck, which comprises a rotating device, two groups of end chassis lifting parts, two groups of supporting part lifting parts and two groups of slope transition devices arranged outside a track, wherein the two groups of end chassis lifting parts can respectively lift end chassis at two ends of a supporting part, the two groups of supporting part lifting parts can respectively lift two ends of the supporting part to separate the supporting part from the end chassis, when the supporting part and the end chassis are in a separated state, the rotating device can drive the supporting part to rotate around a rotation axis of the supporting part, and when the supporting part rotates to a preset angle, the two ends of the supporting part can be respectively connected with the two groups of slope transition devices.

When the piggyback car reaches the preset position of the loading and unloading car station, a group of end chassis lifting parts are respectively arranged below the front end chassis and the rear end chassis of the supporting part, a group of supporting part lifting parts are respectively arranged below the front end and the rear end of the supporting part, the end chassis and the supporting part are lifted together from the two ends of the supporting part through the two groups of end chassis lifting parts at the same time until the bogie core plate is at a no-load position, the end chassis lifting parts keep the effect unchanged, the supporting part is lifted upwards from the two ends through the two groups of supporting part lifting parts to separate from the end chassis, then the supporting part lifting parts keep the effect unchanged, finally, the supporting part is acted on by a rotating device to rotate to a preset angle around the rotation axis of the supporting part, and the two ends are respectively connected with a slope transition device.

The lifting part of the end chassis, the lifting part of the supporting part, the rotating device and the like are arranged on the loading and unloading vehicle station, so that the body part of the rotary type piggyback vehicle does not need to be provided with the corresponding lifting part and the corresponding rotating device, and therefore, the lifting and rotating operation of the rotary type piggyback vehicle on the loading and unloading vehicle station can be realized, the integral structure of the rotary type piggyback vehicle is simplified, the weight of the rotary type piggyback vehicle is further reduced, and the economical efficiency is improved. And each device arranged in the loading and unloading station can be matched with different rotary piggyback loading and unloading vehicles passing through the track, so that the applicability of the loading and unloading vehicle is improved, and the cost is further reduced.

Drawings

FIG. 1 is a schematic diagram of a station yard equipment system for a rotary piggyback truck lift truck provided by an embodiment of the present invention;

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

FIG. 3 is a top view of the piggyback vehicle after traveling to a preset position;

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

FIG. 5 is a schematic view of the structure of the bracket after a certain angle of rotation;

FIG. 6 is a schematic view of the structure of the bracket after rotating to a predetermined angle;

FIG. 7 is a schematic view of the structure of the end chassis lifting device in the uppermost position;

FIG. 8 is a perspective view of FIG. 7;

FIG. 9 is a perspective view of the end chassis lifting device in a lowermost position;

FIG. 10 is a schematic view of the structure of the first base;

FIG. 11 is a schematic view of the structure of the first support base;

FIG. 12 is a schematic view of the structure of the first push rod;

FIG. 13 is a schematic view of the structure of the first rocker;

fig. 14 is a schematic structural view of the first support bar.

FIG. 15 is a schematic view of the structure of the pallet jack in the uppermost position;

fig. 16 is a perspective view of fig. 15;

FIG. 17 is a perspective view of the tray lifting device in a lowermost position;

FIG. 18 is a schematic view of the structure of the second base;

FIG. 19 is a schematic view of the structure of the second support base;

FIG. 20 is a schematic structural view of a pusher;

FIG. 21 is a schematic view of a second pushrod;

FIG. 22 is a schematic view of the structure of the second rocker;

Fig. 23 is a schematic structural view of the third supporting bar.

FIG. 24 is a schematic view of the structure of the longitudinal positioning device in the highest position;

Fig. 25 is a front view of fig. 24;

FIG. 26 is a schematic view of the structure of the longitudinal positioning device in the lowermost position;

fig. 27 is a front view of fig. 26;

FIG. 28 is a schematic view of the structure of the third base;

Fig. 29 is a schematic structural view of a third slide mount;

Fig. 30 is a partial structural schematic view of the longitudinal direction positioning device.

In fig. 1-30, the reference numerals are as follows:

100-track;

200-end chassis;

300-slope transition device, 310-limit gear;

400-bracket part;

500-centering device;

600-rotating device, 610-driving wheel, 620-driven wheel;

700-end chassis lifting device;

800-supporting part lifting device;

900-longitudinal positioning device;

71-first base, 711-first slide, 712-first pin holder, 713-first roller plate;

72-a first supporting seat, 721-a second slideway;

731-a first driving piece, 732-a first locking component, 733-a first push rod, 7331-a first section, 7332-a second section, 7333-a first bending, 7334-a first V-shaped connecting piece, 7335-a first roller, 734-a first rocker, 7341-a first concave notch, 7342-a first shaft hole;

74-first support assembly, 741-first support rod, 741-first reinforcement sleeve, 742-second support rod;

75-a first upper sliding shaft 751-a first roller sleeve;

76-a first lower sliding shaft;

77-unlocking part;

81-second base, 811-third slide, 812-second pin boss, 813-second roller plate;

82-a second supporting seat, 821-a fourth slideway, 822-a mounting frame;

831-second hydraulic cylinder, 8311-second piston rod, 832-second locking component, 833-second push rod, 8331-third section, 8332-fourth section, 8333-second bending, 8334-second V-shaped connecting piece, 8335-second roller, 834-second rocker, 8341-second concave notch, 8342-second shaft hole, 835-pushing piece, 8351-driving end, 8352-action end, 8353-pushing rod;

84-second support assembly, 841-third support bar, 8411-second reinforcing sleeve, 842-fourth support bar;

85-a second upper sliding shaft, 851-a second roller sleeve;

86-a second lower sliding shaft;

87-driving wheels;

91-a third base, 911-a fifth slide;

92-a third sliding seat, 921-a first hinging seat, 922-a sliding block;

93-a third hydraulic cylinder, 931-a third piston rod;

94-lifting part;

95-positioning parts, 951-cross beams, 9511-second hinging seats, 952-positioning blocks, 953-third rollers and 954-abutting plates;

96-swinging rod;

97-limit part, 971-first connecting rod, 972-second connecting rod.

Detailed Description

In order to make the technical solution 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.

Referring to fig. 1-6, fig. 1 is a schematic structural diagram of a station yard equipment system of a rotary piggyback truck according to an embodiment of the present invention, fig. 2 is a top view of fig. 1, fig. 3 is a top view of the piggyback truck after traveling to a preset position, fig. 4 is a front view of fig. 3, fig. 5 is a schematic structural diagram of a support portion after rotating by a certain angle, and fig. 6 is a schematic structural diagram of the support portion after rotating to a preset angle;

the present invention provides a station equipment system of a rotary piggyback truck, as shown in fig. 1 and 2, which comprises a rotating device 600, two sets of end chassis lifting parts, two sets of supporting part lifting parts and two sets of slope transition devices 300, wherein the two sets of slope transition devices 300 are arranged at side platforms outside a track 100. The two sets of end chassis lifting devices are respectively arranged below the end chassis 200 at two ends of the supporting portion 400 and are used for simultaneously lifting the end chassis 200 at two ends of the supporting portion 400, so that the end chassis 200 drives the supporting portion 400 to move upwards until a center plate of the bogie is not stressed, the two sets of supporting portion lifting devices are respectively arranged below two ends of the supporting portion 400 and are used for simultaneously lifting the supporting portion 400 from the two ends to separate the supporting portion 400 from the end chassis 200, and the rotating device 600 is used for driving the supporting portion 400 to rotate around a rotation center of the supporting portion 400 to a preset angle after the supporting portion 400 is separated from the end chassis 200, so that two sets of slope transition devices 300 can be respectively connected at two ends of the supporting portion 400.

In detail, as shown in fig. 3-6, after the piggyback truck reaches the preset position of the loading and unloading yard, a set of end chassis lifting parts are respectively arranged below the front end chassis 200 and the rear end chassis 200 of the supporting part 400, a set of supporting part lifting parts are respectively arranged below the front end and the rear end of the supporting part 400, firstly, the end chassis 200 and the supporting part 400 are lifted together from the two ends of the supporting part 400 through the two sets of end chassis lifting parts at the same time until the bogie core plate is at a position of no stress any more, then, the end chassis lifting parts keep unchanged, and then, the supporting part 400 is lifted upwards from the two ends through the two sets of supporting part lifting parts to be separated from the end chassis 200, then, the supporting part lifting parts keep unchanged, finally, the supporting part 400 is acted on by the rotating device 600 to rotate to a preset angle around the rotation axis of the supporting part 400, and after the two ends are respectively connected with the slope transition device 300, the slope transition device 300 can form transition connection between the ground and the supporting part 400, so that the loading and unloading truck is convenient.

In this embodiment, the lifting part of the end chassis, the lifting part of the supporting part, the rotating device 600 and the like are all arranged on the loading and unloading station, so that the body part of the rotary piggyback vehicle does not need to be provided with the corresponding lifting part and the corresponding rotating device 600, and therefore, the integral structure of the rotary piggyback vehicle can be simplified while the lifting and rotating operations of the rotary piggyback vehicle are realized on the loading and unloading station, and further, the weight of the rotary piggyback vehicle is reduced, and the economical efficiency is improved. In addition, each device arranged in the loading and unloading station can be matched with different rotary piggyback loading and unloading vehicles passing through the track 100, so that the applicability of the loading and unloading device is improved, and the cost is further reduced.

In the above embodiment, the yard equipment system further includes a central positioning device 500, where the central positioning device 500 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 supporting portion 400 is provided with a positioning shaft hole or a pit adapted to the positioning shaft along the rotation axis thereof.

When the piggyback vehicle runs to the preset position, the positioning shaft hole or the pit on the lower end surface of the supporting part 400 corresponds to the positioning shaft of the central positioning device 500 in the track 100, the positioning shaft is positioned right below the positioning shaft hole or the pit, the supporting part is lifted by the end chassis lifting part, the supporting part 400 is lifted by the supporting part lifting part to separate from the end chassis 200, and then the lifting mechanism of the central positioning device 500 is started to lift the positioning shaft, so that the positioning shaft is lifted to be matched with the positioning shaft hole or the pit, the positioning shaft is the rotating shaft of the supporting part 400, and then the rotating device 600 acts on the supporting part 400 to rotate around the positioning shaft to a preset angle and is connected with the slope transition device 300.

After the loading and unloading truck is finished, the rotating device 600 acts on the supporting part 400 to enable the supporting part 400 to reversely rotate around the positioning shaft until the supporting part 400 rotates to the position above the end underframe 200 by a preset angle, then the lifting mechanism is driven to enable the positioning shaft to descend to the original position so as not to act with the supporting part 400, the supporting part 400 descends and is matched with the end underframe 200 through the action of the lifting part of the supporting part, and finally the end underframe 200 drives the supporting part 400 to descend to be matched with the bogie through the action of the lifting part of the end underframe.

Or in this embodiment, the body portion of the piggyback may be provided with a rotation axis, for example, a bracket with two ends respectively fixed to the two end underframes 200 is provided below the supporting portion 400, the rotation axis is provided on the bracket, and when the central positioning device 500 is provided in the loading and unloading station, the supporting portion 400 only needs to be provided with a corresponding positioning shaft hole or pit, and the body portion does not need to be provided with a rotation axis.

The centering device 500 may be disposed in a region near the longitudinal center of the supporting portion 4, such that two sets of end chassis lifting portions are disposed symmetrically about the positioning axis, two sets of supporting portion lifting portions are disposed symmetrically about the positioning axis, and two sets of slope transition devices 300 are disposed symmetrically about the positioning axis. The centering device 500 may be provided in a region near both longitudinal ends of the supporting portion 4, or may be provided at other positions as long as the rotation of the supporting portion 4 about the positioning shaft is enabled.

In the above embodiment, the yard equipment system further includes a stop 310 disposed on the ground, and when the supporting portion 400 rotates to abut against the stop 310, it indicates that the supporting portion 400 has rotated by the predetermined angle, and at this time, two ends of the supporting portion 400 can be respectively engaged with the slope transition device 300 disposed on the ground, so as to perform the loading and unloading operation. Or in this embodiment, the supporting portion 400 can be stopped after rotating by a preset angle by controlling the driving function of the rotating device 600, and the solution of limiting the rotating angle of the limiting block 310 can ensure good stability while simplifying the overall structure.

Referring to fig. 7-14, fig. 7 is a schematic view of the structure of the end chassis lifting device at the highest position, fig. 8 is a perspective view of fig. 7, fig. 9 is a perspective view of the end chassis lifting device at the lowest position, fig. 10 is a schematic view of the first base, fig. 11 is a schematic view of the first supporting seat, fig. 12 is a schematic view of the first push rod, fig. 13 is a schematic view of the first rocker, and fig. 14 is a schematic view of the first support rod.

Each set of the end chassis lifting parts comprises two end chassis lifting devices 700 respectively located at two sides of the track 100, that is, four end chassis lifting devices 700 are provided, and two sides of one end chassis 200 are respectively provided with the end chassis lifting devices 700 correspondingly so as to lift the end chassis 200 from two sides, so that the lifting stability can be ensured, and the strength requirement of a single end chassis lifting device 700 can be reduced.

Specifically, in the present embodiment, as shown in fig. 7-9, the end chassis lifting device 700 includes a first base 71, a first supporting seat 72, and a driving mechanism, where two sides of the first supporting seat 72 are respectively connected to the first base 71 through a first supporting component 74. Specifically, the first base 71 is provided with a first slide 711, the first supporting seat 72 is provided with a second slide 721, the first supporting component 74 includes a first supporting rod 741 and a second supporting rod 742 which are disposed in a crossed manner, wherein the top end of the first supporting rod 741 is hinged to the first supporting seat 72, the bottom end of the first supporting rod 741 can slide along the first slide 711, the bottom end of the second supporting rod 742 is hinged to the first base 71, the top end of the second supporting rod 742 can slide along the second slide 721, and the driving mechanism can act on the first supporting component 74 to change the included angle between the first supporting rod 741 and the second supporting rod 742, so as to change the height of the first supporting seat 72 from the first base 71.

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 increases, so as to drive the first supporting base 72 to rise relative to the first base 71, further lift the end chassis 200 of the piggyback truck towards one end of the supporting component 400 until the center plate of the bogie is no longer stressed, and then the lifting operation of the supporting component 400 can be performed by the supporting component lifting device 800, at this time, the supporting component 400 is not deflected due to the supporting of the end chassis lifting device 700, and after the supporting component 400 is assembled and disassembled and is matched with the end chassis 200 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 that the height of the first supporting component 74 decreases, and the first supporting base 72 is driven to descend relative to the first base 71.

In the above embodiment, the driving mechanism includes the first driving member 731 and the first locking assembly 732, where the first driving member 731 is disposed on the first base 71 and provides a power source, and acts on the first supporting member 74 to change the included angle between the two supporting rods (the first supporting rod 741 and the second supporting rod 742), and when the included angle between the first supporting rod 741 and the second supporting rod 742 is minimized, that is, when the first supporting seat 72 is lifted to the highest position, the first locking assembly 732 can lock the relative position of the two supporting rods, that is, keep the state of the first supporting member 74 unchanged, so that the height position of the first supporting seat 72 is stable, and the first supporting seat 72 is prevented from falling due to sudden failure or the like of the first driving member 731, thereby ensuring that the end chassis lifting device 700 can provide stable support for the end chassis 200 in the use state.

Further, the first locking assembly 732 includes a first push rod 733 and a first rocker 734, and the first base 71 is further provided with a first pin holder 712, specifically, the first push rod 733 includes a first segment 7331, a first bend 7333 and a second segment 7332 sequentially disposed, where 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 711, the first bend 7333 is hinged to a first driving member 731, one end of the first rocker 734 is hinged to an end of the second segment 7332, the other end of the first rocker 734 is hinged to the first pin holder 712, the first driving member 731 can act on the first bend 7333 to rotate the first rocker 734 around the first pin holder 712 and drive a bottom end of the first support rod 741 to slide along the first slide 711, and when an included angle between the two is minimized, the first bend 7333 is located just above the first pin holder.

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

As shown in fig. 8, when the first supporting rod 741 slides along the first slideway 711 to the minimum angle between the two supporting rods so that the first supporting seat 72 rises to the highest position, the first bending 7333 is just above the first pin seat 712, and the first driving member 731 is not acted any more, at this time, if the first driving member 731 fails to cause the insufficient thrust, the driving effect of the first driving member 731 on the first supporting component 74 is removed, and the end chassis 200 still continues to press the first supporting seat 72, and the angle between the two supporting rods tends to increase, because the opening of the first bending 7333 is downward and is located directly above the first pin seat 712, at this time, the vertically downward pressure cannot move the first pushing rod 733 laterally, so that the rotation of the first rocking rod 734 and the sliding of the first supporting rod 741 along the first slideway 711 are limited, so that the state of each first supporting component 74 is kept unchanged, i.e. the angle between the two supporting rods is unchanged, the height of the first supporting seat 72 is unchanged, and the stability is better.

By the arrangement of the locking device, when the first driving piece 731 makes the first supporting seat 72 rise to the highest position through the first supporting component 74, the state of each first supporting component 74 cannot be changed by vertical force, and only when the end underframe 200 needs to be lowered, the first pushing piece 731 provides a reverse force to make the first pushing piece 733 move transversely until the first bending piece 7333 is separated from the first pin seat 712, 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. 9). The first locking assembly 732 can realize locking and unlocking while lifting the first supporting seat 72, and does not need to additionally provide a locking part, so that the overall structure can be simplified, the operation can be simplified, and the stability and the operation convenience of the overall structure can be ensured.

Specifically, as shown in fig. 7-9, 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 base 71 through the first supporting components 74, and the hydraulic cylinder acts on a bottom end of the first supporting rod 741 of one of the first supporting components 74 to achieve the overall lifting of all the first supporting components 74, so that the stability is good. Of course, in the present embodiment, the power source may be provided by a motor, a gear and a rack, or a motor, a screw and a nut, which is not particularly limited herein.

In the above embodiment, the end portion of the first section 7331 of the first push rod 733 is further provided with a connecting shaft, the connecting shaft is provided with the first roller 7335, and when the first driving member 731 acts on the first bend 7333 to rotate the first push rod 733 around the hinge point between the first bend 7333 and the first driving member 731, the end portion of the first section 7331 slides along the first slide 711, and at this time, the first roller 7335 can roll along the bottom plate 71. The end of the first section 7331 of the first push rod 733 can be in contact with the first base 71 through the first roller 7335, so that when the end of the first section 7331 slides along the first slideway 711, the first roller 7335 rolls along the first base 71, friction and abrasion between the first section 7331 and the first base 71 can be reduced while resistance is reduced, and service life is guaranteed. Specifically, as shown in fig. 12, the first push rod 733 may include two first V-shaped connectors 7334 disposed in parallel, and a connecting shaft is further disposed between ends of the two first V-shaped connectors 7334 facing the first section 7331, or the ends of the first section 7331 may be further provided with a groove, and the connecting shaft is disposed between two sidewalls of the groove.

Further, as shown in fig. 10, the first base 71 is further provided with a first rolling plate 713, and the first roller 7335 can roll along the first rolling plate 713, or in this embodiment, the first roller 7335 may be configured to roll directly along the upper surface of the first base 71, and the first rolling plate 713 may be configured to be replaced after being worn, so as to ensure the service life of the first base 71.

In the above embodiment, as shown in fig. 13, the end of the first rocker 734 facing the first pin holder 712 is provided with the first concave notch 7341, and the two side walls of the first concave notch 7341 and the first pin holder 712 are respectively provided with the first shaft hole 7342, and the first pin holder 712 is disposed in the first concave notch 7341 and is rotatably connected by a pin shaft passing through the first shaft hole 7342. Or 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 provided with a first concave notch 7341 and the first pin seat 712 is located in the first concave notch 7341, so that the connection of the two is more stable, and the situation of skew jamming is avoided.

In the above embodiment, the end chassis lifting device 700 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 with the first base 71 through symmetrically arranged first supporting components 74, the first upper sliding shaft 75 passes through top ends of second supporting rods 742 of the symmetrically arranged 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 is in abutting rolling contact with the first supporting seat 72. That is, the first rolling sleeve 751 acts between the first supporting component 74 and the first supporting seat 72 to ensure the supporting force of the first supporting component 74 on the first supporting seat 72, so that the stability is good, and meanwhile, the first rolling sleeve 751 is arranged between the two second supporting rods 742, so that the first rolling sleeve 751 can limit the first supporting rod and the second supporting rod to avoid that the distance between the first rolling sleeve and the first supporting rod changes to influence the lifting of the end chassis 200.

Further, the end chassis lifting device 700 further includes a first lower sliding shaft 76, where the first lower sliding shaft 76 passes through the bottom end of the first support rod 741 of the symmetrically disposed first support assembly 74 and the first section 7331 of the first push rod 733, and is slidable along the first slide way 711. The bottom end of the first support rod 741 can slide along the first slide 711 by the arrangement of the first lower sliding shaft 76, and the bottom end of the first support rod 741 is hinged to the end of the first section 7331 of the first push rod 733, so that the overall structure can be simplified.

Further, as shown in fig. 14, the two sides of the bottom end of the first support rod 741 are respectively provided with a first reinforcing sleeve 7411 sleeved outside the first lower sliding shaft 76. The setting of this first reinforcement sleeve 7411 can increase the structural strength of the bottom of first bracing piece 741, still can carry out spacingly to the bottom of this first bracing piece 741, reduces the interval between its both sides and the first end of first base 71 and first push rod 733 respectively, avoids taking place the circumstances of skew, and stability is good.

In the above embodiment, the first base 71 and the first supporting seat 72 are respectively provided with side plates, and the first slide 711 and the second slide 721 are elongated holes provided in the side plates. Or in this embodiment, the first slideway 711 and the second slideway 721 may be provided as a sliding rail or a sliding groove, and the structure of the elongated hole is simpler, so as to simplify the manufacturing process.

In the above embodiment, as shown in fig. 11, the end chassis lifting device 700 further includes an unlocking portion 77, where the unlocking portion 77 is provided on the upper end surface of the first support base 72, for unlocking the lock between the end chassis 200 and the bracket 400. Specifically, the end chassis 200 and the supporting portion 400 are locked by a locking structure, so that the situation that the end chassis 200 and the supporting portion 400 are separated in the driving process is avoided, after the supporting portion 400 is accurately positioned at a loading and unloading vehicle station, when the end chassis lifting device 700 is placed below the end chassis 200, the unlocking portion 77 on the upper end face of the first supporting seat 72 is aligned with the locking structure, the first supporting seat 72 is continuously lifted to enable the unlocking portion 77 to be matched with the locking structure, the locking effect of the locking structure is released in the process of lifting the end chassis 200 and the supporting portion 400, and then the supporting portion 400 is lifted by the lifting device. Or in the present embodiment, the locking function between the end chassis 200 and the bracket 400 may be unlocked by an additionally provided unlocking device, and when the unlocking portion 77 is provided at the top end of the first supporting seat 72, the operation may be simplified while simplifying the overall structure.

In this embodiment, the specific structure of the centering device 500 is not limited, and the end chassis lifting device 700 may be used as a lifting mechanism in the centering device 500, and the positioning shaft may be provided on the upper end surface of the first support base 72.

Referring to fig. 15-23, fig. 16 is a perspective view of fig. 15, fig. 17 is a perspective view of the lifting device of the supporting portion in the lowest position, fig. 18 is a schematic structural view of the second base, fig. 19 is a schematic structural view of the second supporting seat, fig. 20 is a schematic structural view of the pushing member, fig. 21 is a schematic structural view of the second pushing rod, fig. 22 is a schematic structural view of the second rocker, and fig. 23 is a schematic structural view of the third supporting rod.

In the above embodiment, each set of the supporting portion lifting portion includes a supporting portion lifting device 800 disposed in the track 100, as shown in fig. 15-17, the supporting portion lifting device 800 includes a second base 81, a second supporting seat 82, a supporting mechanism and a driving mechanism, where 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, an upper end surface of the second supporting seat 82 is further provided with a rotation driving portion, where the rotation driving portion includes at least two driving wheels 87 disposed at intervals, and an upper end surface of the driving wheel 87 abuts against a lower end surface of the supporting portion 400 and can push the supporting portion 400 to rotate around a rotation axis thereof. Each lifting device comprises at least two driving wheels 87, the axis extension lines of the driving wheels 87 pass through the rotation center of the supporting part 400 and are uniformly arranged along the lower end face of the supporting part 400, the upper end face of the second supporting seat 82 is provided with a mounting rack 822 for mounting the driving wheels 87, each driving wheel 87 of the same lifting device is used for rotatably driving the supporting part 400 from one end, the upper end face of each driving wheel 87 is abutted with the lower end face of the supporting part 400, when the driving wheels 87 rotate, one end of the supporting part 400 can be driven to deflect, and when the driving wheels 87 of the two lifting devices rotate at two ends simultaneously in different directions (one end is leftwards and the other end is rightwards), the driving wheels 87 of the two lifting devices can act on the supporting part 400 from the two ends to enable the supporting part 400 to rotate around the rotation axis of the supporting part, specifically, the rotation axis can be formed through a rotation shaft arranged on the ground, the rotation shaft is matched with the lower end face of the supporting part 400, the supporting part 400 is not stressed in the vertical direction, and the supporting part 400 can rotate around the rotation shaft.

The driving mechanism is used for driving the second supporting seat 82 to lift through the supporting mechanism, so as to drive the rotation driving portion to lift and act on or separate from the lower end surface of the supporting portion 400. In detail, when the end chassis 200 and the supporting portion 400 are integrally lifted to the center plate of the bogie by the lifting device of the end chassis 200, the supporting portion 400 is lifted by the supporting portion lifting device 800 provided in this embodiment, specifically, the two lifting devices are placed on the track 100 and act on the supporting portion 400 from the front end and the rear end respectively, the second supporting seat 82 drives the rotation driving portion to lift to the position where the rotation driving portion can cooperate with the supporting portion 400 by the action of the driving mechanism, then the rotation driving portion is started, and the supporting portion 400 is driven to rotate around the rotation axis to a proper angle to cooperate with the inclined surface transition device of the ground, and then the loading and unloading operation is performed.

That is, the supporting portion lifting device 800 provided in this embodiment can drive the supporting portion 400 to rotate around the rotation axis thereof after stably lifting the supporting portion 400 to a predetermined height, so that the supporting portion 400 can easily rotate relative to the second supporting seat 82 after being lifted, thereby reducing the requirement for the rotating device 600 for rotating the supporting portion 400 in the later stage, and the supporting portion 400 and the second supporting seat 82 form rolling friction through the driving wheel 87 when rotating around the rotation axis thereof, so as to reduce the abrasion between the two.

Specifically, as shown in fig. 1, the number of driving wheels 87 in the present embodiment may be two, or three or more driving wheels may be arranged at equal intervals, so that the two lifting devices can stably support and rotationally drive the supporting portion 400 from two ends.

In the above embodiment, the supporting mechanism includes the supporting portions provided below the second supporting seat 82 and corresponding to the driving wheels 87, respectively. That is, a supporting portion is correspondingly disposed below each driving wheel 87, the number of the supporting portions is not less than that of the driving wheels 87, and the lifting device lifts the supporting portion 400 by abutting the driving wheels 87 with the end portions of the supporting portion 400, so that the pressure applied to the driving wheels 87 is relatively high, and each driving wheel 87 is correspondingly provided with a supporting portion to support the corresponding driving wheel, so that the stability of the whole structure of the lifting device is ensured, and meanwhile, the strength requirement on the second supporting seat 82 is reduced.

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

When the driving assembly acts on the second supporting assembly 84 to reduce the included angle between the third supporting rod 841 and the fourth supporting rod 842, the height of the second supporting assembly 84 is increased, so as to drive the second supporting seat 82 to rise relative to the second base 81, further lift the supporting portion 400 of the piggyback truck up to a preset height (original position), the supporting portion 400 can be driven to rotate by the rotation driving portion, after the supporting portion 400 is assembled and disassembled, the rotation driving device reversely drives the supporting portion 400 to rotate to the original position, the driving assembly acts on the second supporting assembly 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 assembly 84 is reduced, and then the second supporting seat 82 is driven to descend relative to the second base 81 to be matched with the end portion chassis 200, and then the lifting device drives the end portion chassis 200 and the supporting portion 400 to descend together and be matched with the body. Alternatively, in this embodiment, the second support member 84 may be configured as a scissors fork or a telescopic sleeve, and the second support member 84 may be configured as two intersecting support rods that are rotatable relative to each other, thereby simplifying the overall structure.

In the above embodiment, the driving mechanism includes the second driving member and the second locking assembly 832, where the second driving member is disposed on the second base 81 and provides a force source for dynamic lifting, specifically, the second driving member can act on the second supporting assembly 84 to change the included angle between the two supporting rods, and when the included angle between the two supporting rods reaches the minimum, i.e. the second supporting seat 82 rises to the highest position, the second locking assembly 832 can lock the relative positions of the two supporting rods, i.e. keep the state of the second supporting assembly 84 unchanged, so that the height position of the second supporting seat 82 is stable, and the falling of the second supporting seat 82 caused by the sudden failure of the second driving member is avoided, so as to ensure that the lifting device can provide stable support for the end chassis 200 in the use state.

Further, the second locking assembly 832 includes 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. 21, the second push rod 833 includes a third section 8331, a second bend 8333 and a fourth section 8332 sequentially disposed, wherein the second bend 8333 is hinged to a second driving member, an end of the third section 8331 is hinged to a bottom end of the third support rod 841 and can slide along the third slide 811, one end of the second rocker 834 is hinged to an end of the fourth section 8332, the other end of the second rocker 834 is hinged to the second pin seat 812, and the second driving member can act on the second bend 833 and drive the second rocker 834 to rotate around the second pin seat 812, so as to drive the bottom end of the third support rod 841 to slide along the third slide 811, and when an included angle between the two ends is minimized, the second bend 8333 is located above the second pin seat 812.

In detail, the opening of the second fold 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 fold 8333 and drive the second rocker 834 to rotate around the hinge point between the second rocker 8333 and the second pin seat 812, and further drive the second push rod 833 to rotate around the hinge point between the second fold 8333 and the second driving member, and the third segment 8331 can drive the fourth support 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 support rod 841 can only slide along the third slideway 811 to realize the change of the included angle between the two support rods.

When the third support rod 741 slides along the third slideway 711 to the angle between the two support rods to the minimum, so that the second support seat 82 rises to the highest position, the second fold 8333 is just above the second pin seat 812, and the second driving member does not act any more, at this time, if the second driving member fails and causes the thrust of the second driving member to be insufficient, the driving effect of the second driving member on the second support assembly 84 is removed, the supporting portion 400 still continues to press the second support seat 82, and the angle between the two support rods increases, and because the opening of the second fold 8333 is downward and is located directly above the second pin seat 812, at this time, the vertically downward pressure cannot move the second push rod 833 laterally, so that the rotation of the second rocker 834 and the sliding of the third support rod 841 along the third slideway 811 are limited, so that the state of each second support assembly 84 is kept unchanged, that is, the angle between the two support rods is unchanged, the height of the second support seat 72 is unchanged, and the stability is better.

By the above arrangement of the locking device, when the second driving member makes the second supporting seat 82 rise to the highest position through the second supporting member 84, the second supporting member 84 cannot be automatically locked by vertical force, and only when the second supporting seat 82 needs to be lowered, the second pushing rod 833 is laterally moved by the second driving member to disengage the second bending 8333 from the second pin seat 812 by providing a reverse force through the second driving member, the unlocking can be realized and the bottom end of the third supporting rod 841 is reversely moved along the third slideway 811 until the second supporting seat 82 is lowered to the lowest state (as shown in fig. 17). 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 simplify the operation, and ensures the stability and the operation convenience of the whole structure.

In the above embodiment, the end of the third section 8331 of the second push rod 833 is provided with a connecting shaft, and the connecting shaft is provided with a second roller 8335, as shown in fig. 18, the second base 81 is further provided with a second roller plate 813, and the second roller 8335 can roll along the second roller plate 813. Specifically, the end of the third section 8331 may be provided with a groove, and a connecting shaft is disposed between two side walls of the groove, or the second push rod 833 may be configured to include two second V-shaped connectors 8334 disposed in parallel, the connecting shaft is disposed between the end of the two second V-shaped connectors 8334 facing the third section 8331, and a second roller 8335 is sleeved on the connecting shaft (as shown in fig. 21).

When the second driving member acts on the second fold 8333 to enable the second push rod 833 to rotate around the hinge point between the second fold 8333 and the second driving member, the end part of the third section 8331 of the second push rod 833 can be abutted against and rolled with the second rolling plate of the second base 81 through the second roller 8335, so that when the lower end of the third support rod 841 slides along the third slideway 811, the second roller 8335 rolls along the second base 81, friction and abrasion between the third section 8331 and the second base 81 can be reduced while resistance is reduced, and service life is ensured. And, when the second rolling plate 813 is worn, it is replaced, thereby securing the service life of the second base 81.

In the above embodiment, as shown in fig. 22, one end of the second rocker 834 facing the second pin seat 812 is provided with a second concave notch 8341, two side walls of the second concave notch 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 notch 8341 and is rotatably connected through a pin shaft passing through the second shaft hole 8342. Or in this embodiment, one end of the second rocker 834 may be disposed at one side of the second pin seat 812 and connected by a pin, and the second rocker 834 is provided with a second concave notch 8341 and the second pin seat 812 is disposed in the second concave notch 8341, so that the connection of the two is more stable, and the situation of skew jamming is avoided.

In the above embodiment, the driving mechanism further includes a pushing member 835, and the second driving member is a second hydraulic cylinder 831, where the pushing member 835 includes a driving end 8351 and an actuating end 8352, the driving end 8351 is connected with a second piston rod 8311 of the second hydraulic cylinder 831, the actuating 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 push rod 733. That is, the number of the pushing rods 8353 is the same as the number of the supporting parts 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 push rod 833 are in a U-shaped structure (as shown in fig. 20), and drive each supporting part to act and drive the second supporting seat 82 to lift simultaneously through the same second driving member, specifically, the number of the second hydraulic cylinders 831 can be one or two or more, and not limited in particular, each second hydraulic cylinder 831 can act on each second supporting assembly 84 simultaneously through the pushing members 835, so that each second supporting assembly 84 can lift synchronously, and stability is good.

Of course, in the present embodiment, the second driving member may be provided as a motor, a gear and a rack, or a motor, a screw and a nut, without being particularly limited thereto. And the driving by the second hydraulic cylinder 831 can make the overall structure more stable.

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 with the second base 81 through second supporting components 84 symmetrically arranged, the second upper sliding shaft 85 passes through top ends of fourth supporting rods 842 of the second supporting components 84 symmetrically arranged 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 in abutting rolling with the second supporting seat 82. That is, the second rolling sleeve 851 acts between the second supporting component 84 and the second supporting seat 82 to ensure the supporting force of the second supporting component 84 to the second supporting seat 82, so that the stability is good, and meanwhile, the second rolling sleeve 851 is disposed between the two fourth supporting rods 842, and can limit the two fourth supporting rods to avoid the influence of the change of the distance between the two fourth supporting rods on the lifting of the supporting part 400.

Further, the lifting device further comprises 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 second supporting component 84 and the third section 8331 of the second push rod 833, and can slide along the third sliding way 811. The bottom end of the third supporting rod 841 can slide along the third sliding way 811 by arranging the second lower sliding shaft 86, and the bottom end of the third supporting rod 841 is hinged with the end of the third section 8331 of the second push rod 833, so that the whole structure can be simplified.

Further, as shown in fig. 23, the second reinforcing sleeves 8411 are respectively disposed on two sides of the bottom end of the third supporting rod 841 and sleeved outside the second lower sliding shaft 86. The second reinforcing sleeve 8411 can increase the structural strength of the bottom end of the third supporting rod 841, limit the bottom end of the third supporting rod 841, reduce the distance between the two sides of the third supporting rod 841 and the first end of the second base 81 and the second push rod 833 respectively, avoid the deflection and have good stability.

In the above embodiment, the second base 81 and the second support 82 are respectively provided with a side plate, and the third slide 811 and the fourth slide 821 are elongated holes provided in the side plate. Or in this embodiment, the third sliding way 811 and the fourth sliding way 821 may be configured as sliding rails or sliding grooves, and the configuration of the elongated holes is simpler, so as to simplify the manufacturing process.

In the above embodiment, the rotating device 600 includes two sets of power wheel sets, which can drive the supporting portion 400 from two ends to rotate to a preset angle, and each power wheel set includes a driving wheel 610 and a driven wheel 620 disposed at intervals on the bottom surface, where, as shown in fig. 3, the driving wheel 610 is disposed towards one side close to the track 100, that is, after the supporting portion 400 is acted by the driving wheel 87 disposed on the upper end surface of the second supporting seat 82 to rotate to a certain angle (which is smaller than the preset angle) relative to the end chassis 200 around the rotation axis thereof, the outer side (the front side facing the rotation direction) can rotate to be matched with the driving wheel 610 under the action of the driving wheel 87, then the driving wheel 610 can continue to drive the supporting portion 400 to rotate around the rotation axis thereof to above the driven wheel 620, and then the supporting portion 400 will continue to rotate under the action of the driving wheel 610 to be disengaged from the driving wheel 87 until the preset angle is abutted with the limiting stopper 310 and engaged with the slope transition device 300 (as shown in fig. 6), when the supporting portion 400 rotates to be disengaged from the driving wheel 87, at least one of the lower side and the driven wheel 620 is always supported by the driving wheel 610 and at least one driven wheel 620 has good stability (at least one end of the driving wheel 610 and the driven wheel 610 is supported by the driving wheel).

Or in this embodiment, the specific structure of the rotating device 600 is not limited, for example, it may be configured as a pushing device, so that the pushing device can rotate around its rotation axis by pushing and pulling the supporting portion 400 from two ends, and the driving wheel 610 and the driven wheel 620 can provide support for the supporting portion 400 from the lower side of the supporting portion 400 while driving the supporting portion 400 to rotate, so that the central positioning device 500 does not need to be stressed or only bear small force, and the stability of the overall structure is ensured.

Referring to fig. 24-30, fig. 24 is a schematic view of the structure of the vertical positioning device at the highest position, fig. 25 is a front view of fig. 24, fig. 26 is a schematic view of the structure of the vertical positioning device at the lowest position, fig. 27 is a front view of fig. 26, fig. 28 is a schematic view of the structure of the third base, fig. 29 is a schematic view of the structure of the third sliding seat, and fig. 30 is a schematic view of a partial structure of the vertical positioning device.

The yard equipment system further comprises a longitudinal positioning device 900 arranged in the track 100, wherein the longitudinal positioning device 900 comprises a third base 91, a third sliding seat 92, a lifting part 94, a driving part and a positioning part 95, 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 positioning structure arranged on the lower end face of the piggyback supporting part 400, when the positioning part 95 is in a lifting state through the action of the lifting part 94, 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 a positioning structure arranged on the lower end face of the supporting part 400, then the driving part continues to drive, and the supporting part 400 can be pushed to move longitudinally to a preset position through the matching action of the positioning part 95 and the positioning structure.

The longitudinal direction refers to the length direction of the piggyback vehicle, and the longitudinal positioning device 900 can drive the vehicle to move to a preset position, so that each body part and the supporting part 400 respectively correspond to the set positions of other loading and unloading vehicle station equipment (including the end chassis lifting device 700, the supporting part lifting device 800, the slope transition device 300, the rotating device 600 and the like) arranged on the platform, and the loading and unloading vehicle is ensured to be smoothly carried out.

Specifically, the longitudinal positioning device 900 is disposed in the track 100 of the loading and unloading yard, the lower end surface of the supporting portion 400 is provided with a positioning structure, the positioning structure is matched with the limiting mechanism of the longitudinal positioning device 900 provided in this embodiment, when the back-loading truck stops and the supporting portion 400 is located in a preset range, the lifting portion 94 of the longitudinal positioning device 900 is started to enable the positioning portion 95 to be in a lifted state, at this time, the positioning portion 95 and the positioning structure are at the same height, then the driving portion is started, so that the third sliding seat 92 drives the positioning portion 95 to move longitudinally until the positioning portion 95 is matched with the positioning structure of the lower end surface of the supporting portion 400, then the driving portion continues to drive and pushes the supporting portion 400 to move longitudinally to a preset position through the effect of the positioning portion 95 and the limiting structure, at this time, each end 200 and the supporting portion 400 of the back-loading truck respectively correspond to the set positions of other loading and unloading yard devices, the end 200 and the supporting portion 400 can be lifted by the end chassis lifting device 700, the supporting portion 400 is lifted by the supporting portion lifting device 800 to enable the supporting portion 400 to be separated from the end portion 200 and then to be rotated by the supporting portion lifting device 800, and the supporting portion 400 is rotated by the supporting portion lifting device to be in an excessive operation, and the slope can be connected with the loading and unloading truck 300.

That is, when the piggyback truck arrives at the loading yard and stops, the positions of the end chassis 200 and the supporting portion 400 are not necessarily the preset positions, but are located within the preset distance range of the preset positions, and at this time, the longitudinal positioning device 900 provided by the embodiment can push the supporting portion 400 to move longitudinally to the preset positions, so that the accurate positioning of the longitudinal positions of the end chassis 200 and the supporting portion 400 can be achieved, and the actions of the end chassis lifting device 700, the supporting portion lifting device 800, the rotating device 600 and the like can be facilitated at a later stage. The longitudinal positioning device 900 has a simple structure, and is simple in structure and good in stability, and the positioning part 95 is matched with the positioning structure of the lower end surface of the supporting part 400 and pushes the supporting part 400 only by the action of the lifting part 94 and the driving part.

The preset range is a range having a certain distance from the preset position, and when the position where the support 400 is stopped is within the preset range, the longitudinal positioning device 900 can be used for longitudinally positioning the support 400, and if the position exceeds the preset range, the action stroke of the longitudinal positioning device 900 is exceeded, so that the support 400 cannot reach the preset position. Specifically, when the stop position of the supporting portion 400 is within the preset range, it may be at the front side of the preset position or at the rear side of the preset position, so for the same loading and unloading truck station yard, one or more sets of two longitudinal positioning devices 900, which are arranged opposite to each other along the longitudinal direction, can be arranged to adjust the longitudinal position of each supporting portion 400 of the piggyback truck to reach the preset position, so that the flexibility is better.

In the above embodiment, the positioning portion 95 includes the cross beam 951 and the positioning block 952 fixed 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 face of the supporting portion 400, when the vehicle stops within the preset range, the positioning portion 95 is in a separated state with the positioning structure, then the lifting portion 94 acts on the positioning portion 95 to make the height of the positioning portion 95 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 of matching with the positioning structure, the positioning portion 95 is in a sliding state relative to the supporting portion 400, and the arrangement of the third roller 953 can reduce the sliding friction between the positioning portion 95 and the lower end face of the supporting portion 400 in the process, thereby reducing the friction and abrasion condition and prolonging the service life.

As shown in fig. 30, in the present embodiment, the positioning portion 95 is a triangular positioning portion 952, and accordingly, the positioning structure may be a V-shaped notch or a recess of a transverse bracket of the supporting portion 400, or the positioning portion 952 may 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 supporting portion 400 is in the idle state, the height of the supporting portion 400 is highest, and when the supporting portion 400 is loaded with a road vehicle, the height of the supporting portion is lower than the height of the supporting portion when the supporting portion is in the idle state, therefore, when the lifting portion 94 is provided as an air spring, the height of the supporting portion after inflation is elastically adjusted, and compared with the device for lifting the height rigidly, the device can adapt to different height requirements of the supporting portion 400 in different states, and the applicability is better. Specifically, the lower end of the positioning portion 95 (beam 951) may further be provided with an abutment plate 954 for abutting with the air spring, so as to increase the acting area therebetween and improve the stability.

Further, the third sliding seat 92 is further provided with a swinging member, the swinging member includes a hinge end and an action end, wherein the hinge end is hinged with the third sliding seat 92, the top end of the air spring can push the action end to swing around the hinge end, and the beam 951 is fixedly arranged at the action end. That is, the air spring can push the actuating end upward to rotate around the hinge end after being inflated, and when the air spring is exhausted, the actuating end rotates around the hinge end and descends to the lowest position (as shown in fig. 26 and 27), and the arrangement of the swinging member can ensure the stability of the positioning portion 95 and simplify the overall structure.

Furthermore, the swinging member includes two parallel swinging rods 96 arranged at intervals, or in this embodiment, the swinging member may be configured as a whole plate-shaped structure, one side of the plate-shaped structure is hinged to the third sliding seat 92, the other side is fixed to the cross beam 951, and the two swinging rods 96 can simplify the whole structure and reduce the weight.

In the above embodiment, the driving portion includes the third hydraulic cylinder 93 hinged to the third base 91, where the end portion of the third piston rod 931 of the third hydraulic cylinder 93 is hinged to the positioning portion 95, and the third piston rod 931 of the third hydraulic cylinder 93 pushes and pulls the positioning portion 95 so that the third sliding seat 92 and the positioning portion 95 slide in the longitudinal direction as a whole, or in this embodiment, the third piston rod 931 of the hydraulic rod may also act on the third sliding seat 92, that is, directly push and pull the third sliding seat 92 so as to drive the positioning portion 95 to slide in the longitudinal direction, and when 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, a portion of the third hydraulic cylinder 93 is located above the sliding portion (between the two swing rods 96), so that the distance between the end portion of the third sliding seat 92 and the end portion of the third base 91 may be reduced, thereby reducing the overall volume of the longitudinal positioning device 900.

Or in this embodiment, the driving part may be configured to include a motor, a gear and a rack, or may be configured to include a motor, a screw and a nut, where the driving part may be fixedly disposed on the third base 91 and directly act on the third sliding seat 92 to slide longitudinally relative to the third base 91, and when the driving part 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 900 further includes a limiting portion 97, where the limiting portion 97 is used to limit the lifting height of the actuating end, so that when the actuating end is lifted to the highest position (as shown in fig. 24 and 25), the positioning portion 95 can be matched with the positioning structure of the supporting portion 400 in the idle state, so that when the air spring is inflated to push the positioning portion 95 upwards, the situation that the air spring is damaged due to excessive inflation pressure is avoided, and inflation protection is provided for the air spring.

Specifically, the limiting portion 97 includes a first link 971 and a second link 972 that are hinged to each other, where, as shown in fig. 29 and 30, the third sliding seat 92 is provided with a first hinge seat 921, the positioning portion 95 (beam 951) is provided with a second hinge seat 9511, an end portion of the first link 971 is hinged to the first hinge seat 921, an end portion of the second link 972 is hinged to the second hinge seat 9511, and when the lifting portion 94 lifts the positioning portion 95, the second link 972 can be driven to be unfolded or folded relative to the first link 971 through an action end. That is, when the lifting portion 94 lifts 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 links is expanded to the maximum, the air spring can be limited. Alternatively, in this embodiment, the limiting portion 97 may be provided as a chain or a pull cord, and the air spring may be limited when the chain or the pull cord is in a straightened state. When the limiting portion 97 is provided as two hinged and foldable connecting rods, after the air spring is exhausted, the two connecting rods are in a folded state, and at the moment, the height of the two connecting rods is low, so that the lowering of the positioning portion 95 is not hindered.

Further, the limiting portion 97 further includes a limiting structure disposed on the first connecting rod 971 and/or the second connecting rod 972, and the limiting structure can limit the maximum included angle between the first connecting rod 971 and the second connecting rod 972, so that the maximum included angle is smaller than 180 °, and the setting can avoid that the included angle between the two connecting rods reaches 180 ° to form a dead point, thereby affecting the descent of the positioning 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 other link to continue rotating, or may further include a limiting structure respectively provided on the two links and adapted to each other, and when the included angle between the two links reaches the maximum, the other link may be limited to continue rotating.

In the above embodiment, as shown in fig. 28, the third base 91 is provided with a fifth slide way 911 in the longitudinal direction, the third sliding seat 92 is provided with a slide block 922 capable of sliding along the fifth slide way 911, specifically, as shown in fig. 29 and 30, in this embodiment, the fifth slide way 911 is a slide groove provided on the third base 91, the edge of the third sliding seat 92 is provided with a slide block 922 capable of sliding along the slide groove and positioned in 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 sliding seat 92 is provided with a slide block 922 capable of sliding along the slide groove. Of course, in the present embodiment, the fifth sliding way 911 may be provided as a bar-shaped hole or a sliding rail disposed along the longitudinal direction, which is not particularly limited herein.

Of course, in the present embodiment, the fifth slide way 911 may be provided on the third slide seat 92, and the third base 91 may slide along the fifth slide way 911, and the third slide seat 92 may slide with respect to the third base 91 because the third base 91 is fixedly provided on the rail surface. When the fifth slide 911 is provided on the third base 91, the third slide base 92 can be ensured to have good sliding continuity.

In addition, in this embodiment, the hinge connection between the above components may be a pin or round pin connection, and the pin or round pin may be limited by a washer or cotter pin.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A station equipment system for a rotating piggyback vehicle loading and unloading vehicle, characterized in that it comprises a rotating device, two sets of end chassis lifting parts, two sets of support lifting parts and two sets of slope transition devices (300) arranged outside the track (100);

The two groups of end chassis lifting parts can respectively lift the end chassis (200) at both ends of the supporting part (400);

The two groups of the supporting portion lifting parts can respectively lift the two ends of the supporting portion (400) so that the supporting portion (400) is separated from the end bottom frame (200);

When the support portion (400) and the end base frame (200) are in a disengaged state, the rotating device (600) can drive the support portion (400) to rotate around its rotation axis, and when the support portion (400) rotates to a preset angle, the two ends of the support portion (400) can respectively connect with the two sets of the slope transition devices (300);

It also includes a center positioning device (500) disposed in the track (100), which includes a lifting mechanism and a positioning shaft disposed at the top of the lifting mechanism, and a positioning shaft hole or a recess matched with the positioning shaft is provided on the lower end surface of the support portion (400) along its rotation axis;

The end frame lifting part comprises two end frame lifting devices (700) respectively located on both sides of the track (100), the end frame lifting device (700) comprises a first base (71), a first support base (72) and a driving mechanism, and the two sides of the first support base (72) are respectively connected to the first base (71) via a first support assembly (74);

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

The first support assembly (74) comprises a first support rod (741) and a second support rod (742) which are arranged crosswise, the top end of the first support rod (741) is hinged to the first support seat (72), the bottom end of the first support rod (741) can slide along the first slideway (711), the bottom end of the second support rod (742) is hinged to the first base (71), and the top end of the second support rod (742) can slide along the second slideway (721);

The driving mechanism is capable of acting on the first supporting assembly (74) to change the angle between the first supporting rod (741) and the second supporting rod (742);

It also includes a limit stopper (310) disposed on the ground, and when the support portion (400) rotates to abut against the limit stopper (310), the two ends of the support portion (400) can respectively connect with the slope transition device (300).

2. The station equipment system according to claim 1 is characterized in that the driving mechanism includes a first driving member (731) and a first locking assembly (732), the first driving member (731) is arranged on the first base (71) and can act on the first supporting assembly (74) to change the angle between the first supporting rod (741) and the second supporting rod (742), and when the angle between the first supporting rod (741) and the second supporting rod (742) reaches the minimum, the first locking assembly (732) can lock the relative position of the first supporting rod (741) and the second supporting rod (742).

3. The station equipment system according to claim 2, characterized in that the first locking assembly (732) comprises a first push rod (733) and a first rocker (734), and the first base (71) is 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) which are arranged in sequence, the end of the first section (7331) is hinged to the bottom end of the first support rod (741) and can slide along the first slideway (711), and the first bend (7333) is hinged to the first driving member (731);

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

The first driving member (731) can act on the first bend (7333) to cause the first rocker arm (734) to rotate around the first pin seat (712), and drive the bottom end of the first support rod (741) to slide along the first slideway (711); when the angle between the first support rod (741) and the second support rod (742) reaches a minimum, the first bend (7333) is located above the first pin seat (712).

4. The station equipment system according to claim 3 is characterized in that a connecting shaft is provided at the end of the first section (7331), the connecting shaft sleeve is provided with a first roller (7335), and the first base (71) is also provided with a first rolling plate (713), and when the end of the first section (7331) slides along the first slideway (711), the first roller (7335) can roll along the first rolling plate (713).

5. The station equipment system according to claim 3, characterized in that the end chassis lifting device (700) further comprises a first upper sliding shaft (75) and a first roller sleeve (751) sleeved outside the first upper sliding shaft (75);

The first support components (74) on both sides of the first support seat (72) are symmetrically arranged, the first upper sliding shaft (75) passes through the top end of the second support rod (742) of the symmetrically arranged first support component (74) and can slide along the second slideway (721), and the first rolling sleeve (751) is located between the two second support rods (742) and rolls in contact with the first support seat (72).

6. The station equipment system according to claim 5, characterized in that the end chassis lifting device (700) further comprises a first lower sliding shaft (76);

The first lower sliding shaft (76) passes through the bottom end of the first support rod (741) of the first support assembly (74) and the first section (7331) of the first push rod (733) which are symmetrically arranged, and can slide along the first slideway (711).

7. The station equipment system according to claim 1, characterized in that the supporting lifting part comprises a supporting lifting device (800) arranged in the track (100), the supporting lifting device (800) comprises a second base (81), a second support seat (82), a supporting mechanism and a driving mechanism, the supporting mechanism is arranged between the second base (81) and the second support seat (82), and the driving mechanism can act on the supporting mechanism to lift and lower the second support seat (82);

The upper end surface of the second support seat (82) is also provided with at least two drive wheels (87) arranged at intervals, and the extended axis of each drive wheel passes through the rotation center of the support portion (400). The upper end surface of the drive wheel (87) abuts against the lower end surface of the support portion (400) and can push the support portion (400) to rotate around its rotation axis.

8. The station equipment system according to claim 7, characterized in that the support mechanism comprises a support portion provided below the second support seat (82) and corresponding to each of the driving wheels (87);

The second base (81) is provided with a third slideway (811), and the second support seat (82) is provided with a fourth slideway (821);

The support portion comprises two groups of symmetrically arranged second support assemblies (84), the second support assembly (84) comprises a third support rod (841) and a fourth support rod (842) arranged crosswise, the top end of the third support rod (841) is hinged to the second support seat (82), the bottom end of the third support rod (841) can slide along the third slideway (811), the bottom end of the fourth support rod (842) is hinged to the second seat (81), and the top end of the fourth support rod (842) can slide along the fourth slideway (821);

The driving mechanism is capable of acting on the second supporting assembly (84) to change the angle between the third supporting rod (841) and the fourth supporting rod (842).

9. The station equipment system according to claim 8 is characterized in that the driving mechanism includes a second driving member and a second locking assembly (832), the second driving member is arranged on the second base (81) and can act on the second support assembly (84) to change the angle between the third support rod (841) and the fourth support rod (842), and when the angle between the third support rod (841) and the fourth support rod (842) reaches the minimum, the second locking assembly (832) can lock the relative position of the third support rod (841) and the fourth support rod (842).

10. The station equipment system according to claim 9, characterized in that 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);

The second push rod (833) comprises a third section (8331), a second bend (8333) and a fourth section (8332) which are arranged in sequence, the end of the third section (8331) is hinged to the bottom end of the third support rod (841) and can slide along the third slideway (811), and the second bend (8333) is hinged to the second driving member (831);

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

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

11. The station equipment system according to claim 10 is characterized in that a connecting shaft is provided at the end of the third section (8331) of the second push rod (833), the connecting shaft sleeve is provided with a second roller (8335), and the second base (81) is also 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).

12. The station equipment system according to claim 10, characterized in that the support portion further comprises a second upper sliding shaft (85) and a second rolling sleeve (851) sleeved outside the second upper sliding shaft (85);

The second upper sliding shaft (85) passes through the top end of the fourth support rod (842) of the symmetrically arranged second support assembly (84) and can slide along the fourth slideway (821); the second rolling sleeve (851) is located between the two fourth support rods (842) and rolls in contact with the second support seat (82).

13. The station equipment system according to claim 12, characterized in that the support portion further comprises a second lower sliding shaft (86);

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

14. The station equipment system according to claim 7 is characterized in that the rotating device (600) includes two sets of power wheel groups, and the two sets of power wheel groups can drive the supporting part (400) to rotate from both ends respectively, and the power wheel group includes a driving wheel (610) and a driven wheel (620) arranged on the ground at intervals, and the driving wheel (610) is arranged on one side close to the track (100), and the supporting part (400) can be driven by the driving wheel to rotate to cooperate with the power wheel group.

15. The station equipment system according to claim 1, characterized in that it also comprises a longitudinal positioning device (900) arranged in the track (100), wherein the longitudinal positioning device (900) comprises a base (91), a sliding seat (92), a driving part, a lifting part (94) and a positioning part (95);

The driving part is capable of driving the sliding seat (92) to slide longitudinally relative to the base (91);

The positioning portion (95) and the lifting portion (94) are both arranged on the sliding seat (92), the positioning portion (95) is matched with a positioning structure arranged on the lower end surface of the backpack support portion (400), and the lifting portion (94) can lift and lower the positioning portion (95);

When the positioning portion (95) is in a raised state, the driving portion can drive the sliding seat (92) to drive the positioning portion (95) to slide longitudinally until it cooperates with the positioning structure, and push the supporting portion (400) to move longitudinally to a preset position.

16. The station equipment system according to claim 15, characterized in that the positioning part (95) comprises a crossbeam (951) and a positioning block (952) fixed to the crossbeam (951), and rollers (953) capable of rolling along the lower end surface of the supporting part (400) are respectively provided at both ends of the crossbeam (951).

17. The station equipment system according to claim 16, characterized in that the lifting part (94) is an air spring arranged on the sliding seat (92).

18. The station equipment system according to claim 17 is characterized in that the sliding seat (92) is also provided with a swinging member, the swinging member includes 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 swing around the hinged end, and the crossbeam (951) is fixed to the action end.

19. The station equipment system according to claim 18 is characterized in that the longitudinal positioning device (900) also includes a limiting portion (97) arranged on the sliding seat (92), and the limiting portion (97) includes a first connecting rod (971) and a second connecting rod (972) which are hinged to each other, and the end of the first connecting rod (971) is hinged to the sliding seat (92), and the end of the second connecting rod (972) is hinged to the positioning portion (95), and when the lifting portion (94) lifts the positioning portion (95), it can drive the first connecting rod (971) to expand or fold relative to the second connecting rod (972) through the action end.

20. The station equipment system according to claim 19, characterized in that the limiting portion (97) further includes a limiting structure provided on the first connecting rod (971) and/or the second connecting rod (972) to limit the maximum angle between the first connecting rod (971) and the second connecting rod (972).