CN112298251A

CN112298251A - Steering frame

Info

Publication number: CN112298251A
Application number: CN201910712529.9A
Authority: CN
Inventors: 张隶新; 郭继祥; 董磊; 孙秀宇; 张明; 吴瑞梅
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2021-02-02
Anticipated expiration: 2039-08-02
Also published as: CN112298251B; WO2021022902A1

Abstract

The embodiment of the application provides a bogie, includes: a rigid connecting seat having a side beam mounting passage extending therethrough in a longitudinal direction; the side beam is arranged with the connecting seat; the side beam comprises an elastic second beam plate and an elastic first beam plate, the second beam plate and the first beam plate are arranged up and down, and a gap is formed between the second beam plate and the first beam plate; the middle parts of the second beam plate and the first beam plate are accommodated in the side beam installation channel, two ends of the second beam plate and two ends of the first beam plate extend out of the connecting seat, the longitudinal direction is the moving direction of the bogie, and the connecting seat is used for being arranged above one walking rail of a track. The embodiment of the application solves the technical problem of heavy weight of the bogie.

Description

Steering frame

Technical Field

The application relates to the technical field of railway vehicles, in particular to a bogie.

Background

A conventional bogie for a rail train includes: frame, wheel pair, traction device, brake device and buffer device, etc. Wherein the frame is the main framework of the bogie and is used for installing and bearing other structures of the bogie, such as wheel sets, traction devices, buffer devices and the like. The frame is typically constructed of two parallel rigid side beams and a rigid cross beam welded between the two side beams, which are typically made of stainless steel. The traditional rigid bogie has larger weight.

Therefore, the weight of the bogie is heavy, which is a technical problem that needs to be solved urgently by those skilled in the art.

The above information disclosed in the background section is only for enhancement of understanding of the background of the present application and therefore it may contain information that does not form the prior art that is known to those of ordinary skill in the art.

Disclosure of Invention

The embodiment of the application provides a bogie, which aims to solve the technical problem of heavy weight of the bogie.

The embodiment of the application provides a bogie, include:

a rigid connecting seat having a side beam mounting passage extending therethrough in a longitudinal direction;

the side beam is arranged with the connecting seat; the side beam comprises an elastic second beam plate and an elastic first beam plate, the second beam plate and the first beam plate are arranged up and down, and a gap is formed between the second beam plate and the first beam plate;

the middle parts of the second beam plate and the first beam plate are accommodated in the side beam installation channel, two ends of the second beam plate and two ends of the first beam plate extend out of the connecting seat, the longitudinal direction is the moving direction of the bogie, and the connecting seat is used for being arranged above one walking rail of a track.

Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:

after the side beam and the connecting seat are installed, the second beam plate and the first beam plate are arranged up and down, and a gap is formed between the second beam plate and the first beam plate. When the vertical load borne by the side beam is small and a gap still exists between the second beam plate and the first beam plate, the second beam plate is elastically deformed to bear the vertical load alone, and the first beam plate does not bear the vertical load at all; the vertical load born by the side beam is increased, so that the second beam plate is elastically deformed and pressed on the first beam plate, and when a gap is not formed between the second beam plate and the first beam plate, the second beam plate and the first beam plate bear the vertical load together. The mode of the second beam slab and the first beam slab that the interval set up about the bogie promptly provides multistage vertical rigidity, and the bogie of multistage vertical rigidity can match rail train's multiple vertical load's requirement. The rigid connecting seat is a mounting base of the bogie, the middle part of the second beam plate and the middle part of the first beam plate are accommodated in the side beam mounting channel of the connecting seat, and two ends of the second beam plate and two ends of the first beam plate extend out of the connecting seat, namely the length of the connecting seat in the longitudinal direction is smaller than that of the side beam in the longitudinal direction. Thus, the weight of the combination of the connecting seat and the side beam is smaller than that of the traditional side beam in the background art, and the weight control of the bogie is facilitated. To sum up, the bogie of this application embodiment not only can provide multistage vertical rigidity, and light in weight accords with the development trend of bogie moreover.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic illustration of a truck according to an embodiment of the present application adapted for use with a non-powered truck;

FIG. 2 is a schematic view of a truck according to an embodiment of the present application adapted for use with a power truck;

FIG. 3 is a schematic view of the attachment seat and side rail mounting of the truck shown in FIGS. 1 and 2;

FIG. 4 is a perspective view of the side sill shown in FIG. 3;

FIG. 5 is a side schematic view of the side beam of FIG. 4;

FIG. 6 is a schematic view of the attachment sockets, side rails and secondary suspension arrangement of the truck of FIGS. 1 and 2;

FIG. 7 is an exploded view of FIG. 6;

FIG. 8 is a cross-sectional view of FIG. 6;

FIG. 9 is a schematic illustration of the side rails, a series of suspension devices and axle box mounting of the truck of FIGS. 1 and 2;

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

FIG. 11 is an exploded view of FIG. 10;

FIG. 12 is an exploded schematic view of the connecting seat and another structure of the side sill of the truck shown in FIGS. 1 and 2;

FIG. 13 is a cross-sectional view of one attachment of the connecting seat and side member of FIG. 12;

FIG. 14 is a schematic view of the vertical stop of FIG. 13 pressed against a middle portion of the first beam;

FIG. 15 is a cross-sectional view of a truck according to an embodiment of the present application;

FIG. 16 is an enlarged view of a portion of FIG. 15;

FIG. 17 is an exploded view of the draft sill and coupler seat of the truck of an embodiment of the present application;

FIG. 18 is a schematic illustration of the draft sill of FIG. 17;

FIG. 19 is a schematic view of the draft cushion adapter sleeve of FIG. 17;

FIG. 20 is an assembled schematic view of a trailing beam and a kingpin of the truck of an embodiment of the present application;

FIG. 21 is an exploded view of FIG. 20;

FIG. 22 is an enlarged partial schematic view of FIG. 21;

FIG. 23 is an exploded view of the traction buffer of FIG. 22;

FIG. 24 is a cross-sectional view of another implementation of a truck in accordance with an embodiment of the present application;

FIG. 25 is an enlarged partial view of FIG. 24;

FIG. 26 is a schematic view of the attachment base of the bogie shown in FIGS. 15 and 24;

fig. 27 is a schematic view of another angle of the connecting socket shown in fig. 26.

Description of reference numerals:

100 connecting seats, 110 first draft sill mounting holes, 111 first bottom draft pocket,

121 a second bottom buffer gap, 131 a seat top plate, 131-1 a balance bar mounting interface,

an outer side plate of the 132 base body, a brake mounting seat of 132-1, a shock absorber mounting part of 132-2,

a 133 base body bottom plate and a 133-1 single pull rod interface;

210 draft sill, 211 transverse frame, 212 longitudinal frame, 212-1 first draft link pin,

212-2 second traction connecting pin, 220 traction buffer connecting sleeve, 221 traction buffer inner layer sleeve,

a 222 traction buffer middle sleeve, a 222-1 side buffer gap, a 223 traction buffer outer sleeve,

230 drag pins, 231-1 transverse rigid wear plates, 231-2 longitudinal rigid wear plates,

240 traction buffer, 242-11 first metal connector, 242-12 rubber connector,

242-13 second metal connectors, 242-14 third metal connectors,

242-2 traction buffer adjustment shim;

300 side member, 310 second member plate, 311 side member connecting pin, 320 first member plate,

331 one being an upper suspension interface, 332 one being a lower suspension interface,

341 resilient cushion, 342 vertical stop,

410 a series of suspension units, 411 a first suspension assembly, 412 a second suspension assembly,

420 secondary suspension device.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Example one

The embodiment of the application provides a bogie, can be applied to rail vehicle in, this rail vehicle can be diesel locomotive or electric locomotive, can be EMUs, subway, light rail or tram etc..

FIG. 1 is a schematic illustration of a truck according to an embodiment of the present application adapted for use with a non-powered truck; FIG. 2 is a schematic view of a truck according to an embodiment of the present application adapted for use with a power truck; FIG. 3 is a schematic view of the attachment seat and side rail mounting of the truck shown in FIGS. 1 and 2; FIG. 4 is a perspective view of the side sill shown in FIG. 3; FIG. 5 is a side schematic view of the side beam of FIG. 4; FIG. 6 is a schematic view of the attachment sockets, side rails and secondary suspension arrangement of the truck of FIGS. 1 and 2; FIG. 7 is an exploded view of FIG. 6; FIG. 8 is a cross-sectional view of FIG. 6; FIG. 9 is a schematic illustration of the side rails, a series of suspension devices and axle box mounting of the truck of FIGS. 1 and 2; FIG. 10 is an enlarged view of a portion of FIG. 9; FIG. 11 is an exploded view of FIG. 10; FIG. 12 is an exploded schematic view of the connecting seat and another structure of the side sill of the truck shown in FIGS. 1 and 2; FIG. 13 is a cross-sectional view of one attachment of the connecting seat and side member of FIG. 12; FIG. 14 is a schematic view of the vertical stop of FIG. 13 pressed against a middle portion of the first beam.

As shown in fig. 1 to 5, a bogie of an embodiment of the present application includes:

a rigid connection seat 100, the connection seat 100 having a side beam mounting passage penetrating in a longitudinal direction;

a side member 300 installed with the connecting seat 100; the side beam comprises a second elastic beam plate 310 and a first elastic beam plate 320, and the second beam plate 310 and the first beam plate 320 are arranged up and down with a gap between the two;

the middle of the second beam plate 310 and the middle of the first beam plate 320 are accommodated in the side beam installation channel, two ends of the second beam plate 310 and two ends of the first beam plate 320 extend out from the connecting seat 100, the longitudinal direction is the moving direction of the bogie, and the connecting seat 100 is used for being arranged above one running rail of a track.

The bogie of this application embodiment, at first, curb girder and connecting seat installation back, second roof beam board and first roof beam board set up from top to bottom and have the clearance between the two. When the vertical load borne by the side beam is small and a gap still exists between the second beam plate and the first beam plate, the second beam plate is elastically deformed to bear the vertical load alone, and the first beam plate does not bear the vertical load at all; the vertical load born by the side beam is increased, so that the second beam plate is elastically deformed and pressed on the first beam plate, and when a gap is not formed between the second beam plate and the first beam plate, the second beam plate and the first beam plate bear the vertical load together. The mode of the second beam slab and the first beam slab that the interval set up about the bogie promptly provides multistage vertical rigidity, and the bogie of multistage vertical rigidity can match rail train's multiple vertical load's requirement. Secondly, the rigid connecting seat is a mounting base of the bogie, the middle part of the second beam plate and the middle part of the first beam plate are accommodated in the side beam mounting channel of the connecting seat, and two ends of the second beam plate and two ends of the first beam plate extend out of the connecting seat, namely the length of the connecting seat in the longitudinal direction is smaller than that of the side beam in the longitudinal direction. Thus, the weight of the combination of the connecting seat and the side beam is smaller than that of the traditional side beam in the background art, and the weight control of the bogie is facilitated. To sum up, the bogie of this application embodiment not only can provide multistage vertical rigidity, and light in weight accords with the development trend of bogie moreover.

In practice, as shown in fig. 3, 4 and 5, the second beam 310 has a shape that both ends are gradually lowered toward the middle, and the first beam 320 has a shape that both ends are gradually lowered toward the middle;

when the middle part of the second beam plate is subjected to a vertical load, two ends of the second beam plate are close to the middle part, and when the middle part of the first beam plate is subjected to a vertical load applied to the middle part of the second beam plate, two ends of the first beam plate are close to the middle part.

Because the second beam plate and the first beam plate are elastic, elastic deformation is easy to occur under the action of vertical load. At the corner of the track, the inner side running rail is low, the outer side running rail is high, when the bogie passes through the corner, the inner side running rail bears larger vertical load, the deformation of the side beam above the inner side running rail is more serious, the distance between wheels above the inner side running rail is smaller, the attack angle between the wheels above the inner side running rail and the running rail is smaller, the abrasion of the wheels above the inner side running rail is smaller, the friction on the side part of the inner side running rail is smaller, and the bogie is easier to pass through the small corner of the track.

In practice, as shown in fig. 3, 4 and 5, the thickness of the second beam plate increases gradually from the two ends to the middle, and the thickness of the first beam plate increases gradually from the two ends to the middle.

The thick both ends in middle part of curb girder are thin, and the first position because the middle part of curb girder is the position of bearing vertical load, and thick thickness makes the ability of bearing vertical load stronger, and secondly, the partial thickness outside the middle part of curb girder is less, can subtract heavy and save material.

In practice, as shown in fig. 3, 4 and 5, the width of the second beam plate 310 increases gradually from the two ends to the middle, and the width of the first beam plate 320 increases gradually from the two ends to the middle.

The middle part of the side beam is wider and narrower at two ends, firstly, the middle part of the side beam is the position for bearing the vertical load, the wider width ensures that the capability of bearing the vertical load is stronger, and secondly, the width of the part outside the middle part of the side beam is smaller, so that the weight can be reduced, and the material can be saved.

In implementation, the side beam and the connecting seat are installed in a specific mode. As shown in fig. 6, 7 and 8, the middle part of the second beam plate is provided with a rigid side beam connecting pin 311 protruding upwards;

the connecting seat comprises a seat body top plate 131, the side beam mounting channel is positioned below the seat body top plate 131, and the seat body top plate 131 is provided with a side beam connecting hole;

the bogie further comprises a secondary suspension device 420, and a secondary suspension interface is arranged at the bottom of the secondary suspension device;

the side beam connecting pin 311 upwardly passes through the side beam connecting hole and the secondary suspension interface to realize the mounting of the second beam plate and the secondary suspension device with the connecting seat.

The secondary suspension device of the bogie is connected with the train body of the rail train, and the vertical load of the train body acts on the second beam plate through the secondary suspension device and the connecting seat.

In practice, the mounting is in relation to the second beam and the first beam. As can be seen in fig. 1, 2, 9, 10 and 11, the bogie further comprises a primary suspension device 410, said primary suspension device 410 comprising a first suspension assembly 411 and a second suspension assembly 412;

a series of upper suspension interfaces 331 are respectively arranged at the end part of the lower plate surface of the second beam plate and the end part of the upper plate surface of the first beam plate, and a series of lower suspension interfaces 332 are arranged at the end part of the lower plate surface of the first beam plate;

the first suspension assembly 411 mounts the first suspension assembly with the second beam and the first beam through the tie-up suspension interface 331; the second suspension assembly 412 mounts the second suspension assembly to the first beam panel through the tie-down suspension interface 332.

The primary suspension means is a suspension system provided between the axle boxes and the side sills of the bogie. The second suspension assembly is mounted between the axle housing and the first beam panel and the first suspension assembly is mounted between the first beam panel and the second beam panel.

In an implementation, the second beam plate may be a second beam plate made of a fiber composite material such as a carbon fiber material or a glass fiber material, and the first beam plate may be a first beam plate made of a fiber composite material such as a carbon fiber material or a glass fiber material.

The second beam plate and the first beam plate made of the materials have elasticity, the density is quite small, the weight of the bogie is light, and the trend of light weight development of the bogie is met.

The embodiment of the application provides another implementation mode for realizing multistage vertical rigidity of a bogie. As shown in fig. 7 and 8, the side member further includes:

and a resilient cushion 341, wherein the resilient cushion 341 is disposed between the middle portion of the second beam 310 and the middle portion of the first beam 320, and is fixed to the middle portion of the second beam and in contact with the middle portion of the first beam, respectively.

The vertical load borne by the side beams is small, the second beam plate bears the vertical load and transmits the vertical load to the elastic cushion pad, the second beam plate and the elastic cushion pad bear the vertical load together, and the first beam plate does not bear the vertical load at all; when the vertical load born by the side beam is increased and the elastic cushion pad reaches the deformation limit, the vertical load is transmitted to the first beam plate, and the elastic cushion pad and the first beam plate bear the vertical load together by the second beam plate. Therefore, due to the existence of the elastic cushion pad, the vertical rigidity curve of the bogie is formed by superposing the vertical rigidity curve of the side beam material and the vertical rigidity curve of the elastic cushion pad material, and the possibility of reaching the preset vertical rigidity curve of the bogie is provided. The vertical stiffness curve preset by the bogie can be a vertical stiffness curve which is comfortable for passengers.

In an embodiment, the resilient cushion has a stiffness less than the stiffness of the second beam panel and the resilient cushion has a stiffness less than the stiffness of the first beam panel.

In an implementation, the resilient cushion is a resilient cushion of rubber material.

The embodiment of the application provides a realization mode for realizing multi-stage vertical rigidity of a bogie. As shown in fig. 12 and 13, the side member further includes:

the connecting seat is provided with a rigid vertical stopping member 342, the vertical stopping member 342 is fixed with the connecting seat, the vertical stopping member 342 is arranged between the middle part of the second beam plate and the middle part of the first beam plate, and the vertical stopping member 342 is in contact with the middle part of the second beam plate.

The vertical load borne by the side beam is small, the vertical stop is in contact with the middle of the second beam plate, the second beam plate and the vertical stop bear the vertical load, and the first beam plate does not bear the vertical load at all; whether the first beam plate is subjected to the vertical load is determined by the position of the first beam plate and the size of the vertical load.

In implementation, another implementation manner that the vertical stopping block is in contact with the middle of the second beam plate is that the vertical stopping block is attached to the middle of the second beam plate.

The vertical load born by the side beam is increased, the vertical load presses the connecting seat to move downwards, the vertical stopping block is pressed at the middle part of the first beam plate, and at the moment, the second beam plate, the vertical stopping block and the first beam plate bear the vertical load together.

In practice, as shown in FIG. 13, a gap is maintained between the vertical stop 342 and the middle of the first beam 320.

The vertical load born by the side beam is increased, the second beam plate and the vertical stop block bear the vertical load, the vertical load presses the connecting seat to move downwards, the vertical stop block is close to the middle part of the first beam plate until the vertical stop block is contacted with the first beam plate, and as shown in figure 14, the vertical load is jointly borne by the second beam plate, the vertical stop block and the first beam plate.

Example two

The bogie according to the second embodiment of the present application is a further improvement of the first embodiment of the present application.

FIG. 15 is a cross-sectional view of a truck according to an embodiment of the present application; FIG. 16 is an enlarged view of a portion of FIG. 15; FIG. 17 is an exploded view of the draft sill and coupler seat of the truck of an embodiment of the present application; FIG. 18 is a schematic illustration of the draft sill of FIG. 17; FIG. 19 is a schematic view of the draft cushion adapter sleeve of FIG. 17; FIG. 20 is an assembled schematic view of a trailing beam and a kingpin of the truck of an embodiment of the present application; FIG. 21 is an exploded view of FIG. 20; FIG. 22 is an enlarged partial schematic view of FIG. 21; FIG. 23 is an exploded view of the traction buffer of FIG. 22; FIG. 24 is a cross-sectional view of another implementation of a truck in accordance with an embodiment of the present application; fig. 25 is a partially enlarged view of fig. 24.

In the bogie according to the second embodiment of the present application, as shown in fig. 1, 2 and 15, there are two connecting seats 100, two connecting seats 100 are arranged at intervals in the transverse direction, and there are two side beams; wherein the lateral direction is a gauge direction of the bogie;

as shown in fig. 15, 16 and 17, the bogie further comprises a draft sill 210, and the connection between the two ends of the draft sill 210 and the two connecting seats 100 is a flexible connection.

According to the bogie disclosed by the embodiment of the application, two ends of the traction beam are connected with the two connecting seats in a flexible connection mode, namely the traction beam and the connecting seats are not in a rigid integrated structure, so that when one walking rail of the rail is provided with bulges or depressions, one connecting seat positioned on the walking rail can generate upward or downward fluctuation when passing through the bulges or the depressions, the flexible connection can consume a part of fluctuation, and the fluctuation is transmitted to the traction beam after being reduced;

in an implementation, as for the structure of the towing beam, it may be the structure shown in fig. 17 and 18, the towing beam 210 is a closed frame shape, the towing beam 210 is connected between two connecting seats in a flat manner, and a frame opening of the towing beam 210 is parallel to a reference plane;

wherein the reference plane is a coordinate plane determined by the longitudinal direction and the lateral direction.

The draw beam is the frame shape, and connects between the connecting seat with the mode of keeping flat, and the undulant draw beam that can stretch that transmits to the draw beam, and the draw beam is stretched and can produce little distortion, can produce the power of reconversion after the distortion, and this process consumes partly undulant again to make the bogie receive undulant influence further to reduce. The bogie of this application embodiment, when a track walking rail has swell or sunken, a connecting seat that is located on this walking rail can produce upwards or decurrent undulant when process swell or sunken, and the bogie can consume partly undulant, reduces undulant influence to whole bogie, and the bogie adapts to orbital ability higher, and then makes the stability of the train that uses this bogie higher, and the travelling comfort of taking is higher.

In an implementation, the structure of the towing beam may be as shown in fig. 18, the towing beam 210 is a rectangular towing beam surrounded by a transverse frame 211 and a longitudinal frame 212, a length direction of the transverse frame 211 coincides with a track gauge direction of the bogie, and a length direction of the longitudinal frame 212 coincides with a moving direction of the bogie.

The rectangular draw beam has a simple structure and a regular shape, and is convenient to process, manufacture and transport.

Specifically, as shown in fig. 18, the transverse frame 211 and the longitudinal frame 212 are in smooth round transition, the rectangular towing beam is a round rectangular towing beam, and the transverse frame and the longitudinal frame are in a hollow box-type structure. The rounded rectangle towing beam is convenient to manufacture, and avoids the damage to other parts caused by sharp corners. The transverse frame and the longitudinal frame of the hollow box-type structure provide enough support and play a role in reducing weight.

In practice, as for one implementation of the flexible connection between the two ends of the towing beam and the two connecting seats, as shown in fig. 17 and 18, the opposite side of the connecting seat is provided with a first towing beam mounting hole 110, and the outer side of the longitudinal frame 212 is provided with a first towing connecting pin 212-1;

the bogie further comprises a traction buffering connecting sleeve 220, as shown in fig. 19, the traction buffering connecting sleeve 220 comprises a rigid traction buffering inner layer sleeve 221 and a rigid traction buffering outer layer sleeve 223 which are sleeved, and a traction buffering middle sleeve 222 fixed between the traction buffering inner layer sleeve and the traction buffering outer layer sleeve;

the traction buffer inner layer sleeve 221 is fixed with the first traction connecting pin 212-1 in an interference fit mode, and the traction buffer outer layer sleeve 223 is fixed with the first traction beam mounting hole 110 in an interference fit mode, so that the connection between the two ends of the traction beam and the two connecting seats is realized.

Specifically, the traction buffer middle sleeve is made of a material capable of generating elastic deformation, the traction buffer middle sleeve and the traction buffer inner layer sleeve are fixed together in a vulcanization mode. Specifically, the traction buffer middle sleeve is made of rubber materials, the traction buffer inner layer sleeve is made of metal materials, and the traction buffer outer layer sleeve is made of metal materials.

Through drawing the buffering adapter sleeve, realized two ends of draw beam and two flexible connection between the connecting seat, simple structure, simple to operate.

In operation, as shown in FIG. 16, a first bottom cushioning gap 111 is formed between the open end of the first draft link pin 212-1 and the bottom of the first draft sill mounting hole 110.

The traction buffer connecting sleeve is arranged at the position and is mainly used for transmitting longitudinal force and torsional force. The first bottom buffer gap is used for preventing over-positioning during assembly.

In practice, as shown in fig. 16, the outer peripheral surface of the traction buffering intermediate sleeve 222 is a curved surface with a convex middle, and a side buffering gap 222-1 is formed between both ends of the outer peripheral surface of the traction buffering intermediate sleeve and the inner wall of the traction buffering outer sleeve.

When the draw beam and the connecting seat move relatively, the side buffer gap provides a space for the relative movement of the draw beam and the connecting seat, and the flexible connection between the draw beam and the connecting seat is better realized.

In practice, as for another implementation manner of the flexible connection between the two ends of the towing beam and the two connecting seats, as shown in fig. 24 and 25, the opposite side of the connecting seat is provided with a second towing beam mounting hole, and the outer side of the longitudinal frame is provided with a second towing connecting pin 212-2 in a protruding manner;

the second traction connecting pin 212-2 is in shaft hole clearance fit with the second traction beam mounting hole;

the longitudinal frame and the connecting seats are connected in the track gauge direction of the bogie through bolts, screw holes and nuts, and the length direction of the bolts is along the track gauge direction of the bogie, so that the connection between the two ends of the traction beam and the two connecting seats is realized.

In operation, as shown in FIG. 25, a second bottom cushioning gap 121 is formed between the open end of the second hitch coupler pin 212-2 and the bottom of the second hitch beam mounting hole.

In practice, as shown in fig. 1, 2, 20 and 21, the bogie further comprises:

the top end of the towing pin 230 is used for being fixed with a train body of a train, and the lower part of the towing pin is inserted into a frame opening of the towing beam 210;

and an elastic traction buffer 240, wherein the traction buffer 240 is respectively fixed between the lower part of the traction pin 230 and the inner sides of the two transverse frames 211, so as to flexibly transmit traction force and braking force between the traction beam and the traction pin.

The traction buffer piece can flexibly transmit longitudinal force between the traction pin and the transverse frame of the traction beam, and direct rigid impact transmission between the traction pin and the transverse frame is avoided.

In practice, as shown in fig. 22, the method further includes:

a transverse rigid wear plate 231-1 fixed on one side of the traction pin facing the transverse frame 211 through bolts; the transverse rigid wear plate 231-1 and the kingpin may be considered to be a unitary structure; the laterally rigid wear plate 231-1 and the traction cushion 240 are attached together.

The presence of the transverse rigid wear plate 231-1 avoids wear on the kingpin, and the transverse rigid wear plate can be replaced independently when the transverse rigid wear plate is severely worn.

In practice, as shown in fig. 21 and 22, the traction transmission member further comprises:

the bogie further comprises:

a traction buffer adjustment shim 242-2, wherein the traction buffer adjustment shim 242-2 is fixed between the transverse frame 211 and the traction buffer 240 to connect the transverse frame and the traction buffer.

The quantity of the traction buffer adjusting shims can be adjusted according to actual needs so as to match the distance between the traction pin and the transverse frame of the traction beam. The existence of the traction buffer adjusting shim reduces the requirement on the machining precision of the traction buffer.

In practice, as shown in fig. 21, the method further includes:

and a longitudinal rigid wear plate 231-2 fixed on one side of the traction pin facing the longitudinal frame 211 through bolts.

The presence of the longitudinal rigid wear plate 231-2 avoids wear on the kingpin, and allows for individual replacement of the longitudinal rigid wear plate when the longitudinal rigid wear plate is severely worn.

As an alternative, the bogie further comprises a lateral buffer disposed between the longitudinally rigid wear plate and the longitudinal frame, the lateral buffer being fixed to the longitudinal frame.

Thus, when the vehicle body moves laterally, the tow pin contacts the lateral bumper, limiting excessive lateral movement of the vehicle body.

In practice, as shown in fig. 23, the traction buffer comprises:

the first metal connecting piece 242-11, the rubber connecting piece 242-12, the second metal connecting piece 242-13 and the third metal connecting piece 242-14 are sequentially arranged from outside to outside of the towing pin.

Wherein, the rubber connecting piece 242-12 is positioned between the first metal connecting piece 242-11 and the second metal connecting piece 242-13 and fixed together by means of vulcanization; the second metal connectors 242-13 and the third metal connectors 242-14 are fixed together.

EXAMPLE III

The bogie in the third embodiment of the present application is a further improvement on the second embodiment of the present application.

FIG. 26 is a schematic view of the attachment base of the bogie shown in FIGS. 15 and 24; fig. 27 is a schematic view of another angle of the connecting socket shown in fig. 26.

In the bogie according to the third embodiment of the present application, as shown in fig. 3, the length of the connecting seat in the longitudinal direction is less than or equal to one third of the length of the side beam in the longitudinal direction;

and/or the length of the connecting seat along the longitudinal direction is smaller than the net distance between two wheels on the same side of the bogie.

Thus, the connecting seat is small in size, and the weight of the bogie is small.

In practice, as shown in fig. 26, the connecting seat further includes a seat body outer side plate 132, the seat body outer side plate 132 is far away from the inside of the bogie; the seat body outer side plate 132 is provided with two brake mounting seats 132-1, and the two brake mounting seats 132-1 are symmetrically arranged relative to the side beam connecting holes;

wherein the brake mounting seat 132-1 is used for mounting with a brake device of the bogie.

The connecting seat is provided with a brake mounting seat, and conditions are provided for mounting a brake device of the bogie.

In implementation, as shown in fig. 26, the connecting seat further includes a damper mounting portion 132-2, and the damper mounting portion 132-2 is fixed on an outer side surface of the seat body outer side plate;

the damper mounting portion 132-2 is used for mounting an anti-hunting damper, an anti-roll torsion bar and a vertical damper.

The connecting seat is provided with a shock absorber mounting part, and provides conditions for mounting the anti-snake motion shock absorber, the anti-side-rolling torsion bar and the vertical shock absorber of the bogie.

In practice, as shown in fig. 27, the connection holder further includes:

the seat body bottom plate 133 is positioned below the side beam mounting channel, the seat body bottom plate is provided with two groups of single pull rod interfaces 133-1 which are arranged in an upward protruding mode, and the two groups of single pull rod interfaces 133-1 are symmetrically arranged relative to the side beam connecting holes;

the single pull rod interface is used for installing a single pull rod of the bogie.

The connecting seat is provided with a single pull rod interface, and provides conditions for installing a single pull rod of the bogie.

In implementation, as shown in fig. 27, two sets of balance bar mounting interfaces 131-1 are respectively disposed on opposite sides of each connecting seat, and the balance bar mounting interfaces 131-1 protrude from the inner side plate of the seat body;

the balance rod mounting interface is used for mounting a balance rod of a driving device of the bogie, and the inner side plate of the seat body is close to the inside of the bogie.

The connecting seat is provided with a balancing pole mounting interface, and provides conditions for mounting a balancing pole of a driving device of the bogie.

In the description of the present application and the embodiments thereof, it is to be understood that the terms "top", "bottom", "height", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

In this application and its embodiments, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application and its embodiments, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A bogie, comprising:

2. The bogie according to claim 1, wherein the second beam is of a shape that is gradually lower from both ends toward a middle portion, and the first beam is of a shape that is gradually lower from both ends toward a middle portion;

3. The bogie of claim 2, wherein the second beam panel increases in thickness from both ends to a middle portion and the first beam panel increases in thickness from both ends to a middle portion.

4. The bogie of claim 3, wherein the second beam panel increases in width from both ends to a middle portion and the first beam panel increases in width from both ends to a middle portion.

5. The bogie of claim 4, wherein the second beam panel has an upwardly projecting rigid side beam connecting pin at a central portion thereof;

the connecting seat comprises a seat body top plate, the side beam mounting channel is positioned below the seat body top plate, and the seat body top plate is provided with a side beam connecting hole;

the bogie further comprises a secondary suspension device, and a secondary suspension interface is arranged at the bottom of the secondary suspension device;

the side beam connecting pin upwards penetrates through the side beam connecting hole and the secondary suspension interface to realize the installation of the second beam plate and the secondary suspension device with the connecting seat.

6. The bogie of claim 5, further comprising a primary suspension device comprising a first suspension assembly and a second suspension assembly;

the end part of the lower plate surface of the second beam plate and the end part of the upper plate surface of the first beam plate are respectively provided with a series of upper suspension interfaces, and the end part of the lower plate surface of the first beam plate is provided with a series of lower suspension interfaces;

the first suspension assembly mounting the first suspension assembly with the second beam panel and the first beam panel through the tie-down suspension interface; the second suspension assembly mounts the second suspension assembly with the first beam panel through the tie-down suspension interface.

7. The bogie according to claim 6, wherein the second beam panel is a second beam panel of carbon fiber material or glass fiber material and the first beam panel is a first beam panel of carbon fiber material or glass fiber material.

8. The bogie according to any one of claims 1 to 7, further comprising:

and the elastic buffer cushion is arranged between the middle part of the second beam plate and the middle part of the first beam plate and is respectively in contact with the middle part of the first beam plate and the middle part of the second beam plate.

9. The truck of claim 8 wherein the resilient cushion has a stiffness less than the stiffness of the second beam and the resilient cushion has a stiffness less than the stiffness of the first beam.

10. The bogie of claim 9, wherein the resilient bumper pad is a resilient bumper pad of rubber material.

11. The bogie of any one of claims 1 to 7, wherein the side beam further comprises:

the connecting seat is fixed with the connecting seat, the vertical stopping block is arranged between the middle part of the second beam plate and the middle part of the first beam plate, and the vertical stopping block is in contact with the middle part of the second beam plate.

12. The truck of claim 11 wherein the vertical stop abuts a middle portion of the second beam.

13. The truck of claim 11 wherein a gap is maintained between the vertical stop and the middle of the first beam panel.

14. The bogie according to any one of claims 1 to 7, wherein the connecting seats are two, two of the connecting seats are provided at a spacing in the lateral direction, and the side members are two; wherein the lateral direction is a gauge direction of the bogie;

the bogie further comprises a traction beam, and the two ends of the traction beam are flexibly connected with the two connecting seats.

15. The bogie according to claim 14, wherein the draft sill is a closed frame shape, the draft sill is connected between the two connecting seats in a flat manner, and a frame opening of the draft sill is parallel to a reference plane;

16. The bogie according to claim 15, wherein the draft sill is a rectangular draft sill defined by a lateral frame and a longitudinal frame, a length direction of the lateral frame coincides with a track gauge direction of the bogie, and a length direction of the longitudinal frame coincides with a moving direction of the bogie.

17. The bogie according to claim 16, wherein the opposite side of the connecting seat is provided with a first towing beam mounting hole, and the outer side of the longitudinal frame is provided with a first towing connecting pin in a protruding way;

the bogie further comprises a traction buffering connecting sleeve, wherein the traction buffering connecting sleeve comprises a rigid traction buffering inner-layer sleeve and a rigid traction buffering outer-layer sleeve which are sleeved, and a traction buffering middle sleeve fixed between the traction buffering inner-layer sleeve and the traction buffering outer-layer sleeve;

the traction buffer inner layer sleeve is fixed with the first traction connecting pin in an interference fit mode, and the traction buffer outer layer sleeve is fixed with the first traction beam mounting hole in an interference fit mode, so that the two ends of the traction beam and the two connecting seats are flexibly connected.

18. The truck of claim 17 wherein a first bottom bumper gap is formed between the open end of the first draft link pin and the bottom of the first draft sill mounting hole.

19. The bogie according to claim 17, wherein the outer peripheral surface of the middle sleeve is a curved surface with a convex middle part, and side buffer gaps are formed between both ends of the outer peripheral surface of the middle sleeve and the inner wall of the outer sleeve.

20. The bogie according to claim 17, wherein the traction buffering intermediate sleeve is a rubber traction buffering intermediate sleeve, the traction buffering inner sleeve is a metal traction buffering inner sleeve, and the traction buffering outer sleeve is a metal traction buffering outer sleeve.

21. The bogie according to claim 16, wherein the opposite side of the connecting seat is provided with a second draft sill mounting hole, and the outer side of the longitudinal frame is provided with a second draft connecting pin which is protruded;

the second traction connecting pin is in shaft hole clearance fit with the second traction beam mounting hole;

22. The truck of claim 21 wherein a second bottom bumper gap is formed between the open end of the second hitch coupler pin and the bottom of the second hitch beam mounting hole.

23. The bogie of claim 16, further comprising:

the top end of the traction pin is used for being fixed with a train body of a train, and the lower part of the traction pin is inserted into a frame opening of the traction beam;

the traction device comprises an elastic traction buffer piece, wherein the traction buffer piece is respectively fixed between the lower part of the traction pin and the inner sides of the two transverse frames so as to flexibly transmit traction force and braking force between the traction beam and the traction pin.

24. The bogie as recited in claim 23, further comprising:

the transverse rigid wearing plate is fixed on one side, facing the transverse frame, of the traction pin;

the transverse rigid wear plate and the traction buffer are attached together.

25. The bogie as recited in claim 24, further comprising:

and the traction buffer adjusting shim is fixed between the transverse frame and the traction buffer member so as to connect the transverse frame and the traction buffer member.

26. The bogie as recited in claim 25, further comprising:

the longitudinal rigid wearing plate is fixed on one side, facing the longitudinal frame, of the traction pin;

a lateral bumper disposed between the longitudinal rigid wear plate and the longitudinal frame, the lateral bumper being fixed to the longitudinal frame.

27. The bogie of claim 15, wherein the attachment seat has a length in the longitudinal direction that is less than or equal to one third of a length in the longitudinal direction of the side beam;

28. The truck of claim 15 wherein the attachment seat further comprises a seat outer panel, the seat outer panel being remote from the truck interior; the seat body outer side plate is provided with two brake mounting seats which are symmetrically arranged relative to the side beam connecting hole;

the brake mounting seat is used for being mounted with a brake device of the bogie.

29. The truck according to claim 28 wherein said attachment seat further comprises a damper mounting portion secured to an outer side of said seat outer panel;

the shock absorber mounting portion is used for mounting an anti-snake motion shock absorber, an anti-rolling torsion bar and a vertical shock absorber.

30. The bogie of claim 29, wherein the attachment seat further comprises:

the seat body bottom plate is positioned below the side beam mounting channel and is provided with two groups of single pull rod interfaces which are arranged in an upward protruding mode, and the two groups of single pull rod interfaces are symmetrically arranged relative to the side beam connecting hole;

31. The truck of claim 30 wherein each of the attachment sockets has two sets of stabilizer bar mounting interfaces on opposite sides thereof, and the stabilizer bar mounting interfaces project from the seat inner side plate;

wherein the stabilizer bar mounting interface is for mounting a stabilizer bar of a drive device of the bogie.