CN217575202U - Large-axle-weight multipurpose bogie and railway vehicle - Google Patents

Abstract

The utility model provides a large axle load multipurpose bogie and a railway vehicle, which comprises a framework, two sets of wheel set axle box positioning devices, a foundation braking unit, a central traction unit and two sets of secondary suspensions, wherein the two sets of wheel set axle box positioning devices, the foundation braking unit, the central traction unit and the two sets of secondary suspensions are arranged on the framework; wherein, the secondary suspension comprises a vertical shock absorber, a transverse shock absorber and a rubber spring; one end of the vertical shock absorber is connected with the framework, and the other end of the vertical shock absorber is connected with the vehicle body; one end of the transverse shock absorber is connected with the framework, and the other end of the transverse shock absorber is used for being connected with the vehicle body; the rubber spring is vertically and fixedly connected to the middle of the side beam of the framework and located on the side of the vertical shock absorber, and the top end of the rubber spring is used for supporting the vehicle body. The utility model provides a heavy multipurpose bogie of macroaxis compares in the air spring that the structure is complicated, can save installation space greatly, makes things convenient for the installation overall arrangement of automobile body side apron board to avoid the problem consuming time of the reorganization before the vehicle is dispatched from a car, compare in heavy full steel spring, can greatly reduced reorganize the quality and assemble the degree of difficulty.

Description

Large-axle-weight multipurpose bogie and railway vehicle

Technical Field

The utility model belongs to the technical field of the bogie, concretely relates to heavy multipurpose bogie of big axle load and rail vehicle.

Background

The bogie is used as the most important running part of the rail engineering vehicle, and the performance of the bogie directly determines the running speed, the bearing performance, the safety and the stability of the vehicle no matter whether the bogie is a passenger vehicle or a freight vehicle. The railway vehicle bogie generally comprises a secondary suspension device, a foundation brake device, a wheel set axle box positioning device, a framework composition, a central traction device and the like, wherein the secondary suspension device is used as a direct connecting part of the framework composition and a vehicle body, and the structural performance design of the secondary suspension device is particularly critical.

Current rail vehicle bogie secondary suspension device commonly used mainly includes vertical damping, horizontal damping, air spring or all steel spring, wherein, vertical damping and horizontal damping are mostly oil pressure shock absorber, its connection structure is stereotyped basically, but to the air spring and the all steel spring of current adoption, both all have the drawback of different degrees, it is big if air spring installation occupation space, the installation overall arrangement of influence car side apron, need spend the plenty of time to reorganize and outfit the air spring before the vehicle is sent out, all steel spring weight is big, the cost is high, the fixed degree of difficulty of installation is big etc. these are all the difficult problems that need consider and solve when upgrading to rail vehicle bogie at present.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a heavy multipurpose bogie of macroaxis and rail vehicle aims at solving current rail vehicle bogie and adopts that air spring occupation space is big, the departure is reorganized and outfit consuming time, adopts the big problem of full steel spring weight.

In order to achieve the purpose, the utility model adopts the technical proposal that: the first aspect provides a large axle load multipurpose bogie which comprises a framework, two sets of wheel set axle box positioning devices, a foundation brake unit, a central traction unit and two sets of secondary suspensions, wherein the two sets of wheel set axle box positioning devices, the foundation brake unit, the central traction unit and the two sets of secondary suspensions are arranged on the framework; the wheel-set axle box positioning device comprises a wheel set, an axle box assembly and a primary suspension connected between the axle box and a framework; the basic brake unit comprises bilateral suspension type brake shoes which respectively correspond to each wheel, the two groups of secondary suspensions are respectively positioned on two sides of the framework and are respectively used for connecting the vehicle body, and the central traction unit is positioned in the middle of the two groups of secondary suspensions;

the secondary suspension comprises a vertical shock absorber, a transverse shock absorber and a rubber spring; one end of the vertical shock absorber is connected with the framework, and the other end of the vertical shock absorber is connected with the vehicle body; one end of the transverse shock absorber is connected with the framework, and the other end of the transverse shock absorber is connected with the vehicle body; the rubber spring is vertically and fixedly connected to the middle of the side beam of the framework and located on the side of the vertical shock absorber, and the top end of the rubber spring is used for supporting the vehicle body.

With reference to the first aspect, in one possible implementation manner, the rubber spring includes a partition plate, two elastic rubber bodies, an upper metal plate, a lower metal plate, and a lower metal plate; the two elastic rubber bodies are distributed on the upper side and the lower side of the partition plate in a mirror image mode, and each elastic rubber body is provided with a cavity which penetrates through the two ends of the elastic rubber body along the axial direction of the elastic rubber body; the upper metal plate is fixedly connected to the top end of the elastic rubber body above the upper metal plate and used for supporting the vehicle body; the lower metal plate is fixedly connected to the bottom end of the elastic rubber body below and connected with the framework.

In some embodiments, the elastic rubber body is a solid of revolution structure, and the diameter of the rubber body gradually increases or decreases from one end to the other end along the axial direction of the rubber body.

Illustratively, the small-diameter ends of the two elastic rubber bodies are opposite to each other, and the diameter of the cavity is gradually increased from the small-diameter end to the large-diameter end of the elastic rubber bodies.

In some embodiments, the small diameter end of the elastic rubber body is centrally formed with an embedding hole communicated with the cavity, and the centers of the upper and lower plate surfaces of the partition plate are respectively provided with a top pillar which is embedded in the embedding hole.

In a possible implementation manner, the lower plate surface center of the upper metal plate and the upper plate surface center of the lower metal plate are both provided with elastic limiting columns, the two elastic limiting columns respectively extend into the two cavities along the axial direction of the jacking columns, and vertical gaps are respectively reserved between the two elastic limiting columns and the two jacking columns.

Illustratively, the resilient retention post is a rubber steel sheet laminated spring.

For example, the areas of the partition board, the upper metal plate and the lower metal plate are equal and are all larger than the diameter of the large-diameter end of the elastic rubber body.

In some embodiments, the frame has two side beams each having a recessed mounting surface in the middle thereof, and two secondary suspensions are attached to the recessed mounting surfaces.

The utility model provides a big heavenly stems and earthly branches multipurpose bogie's beneficial effect lies in: compared with the prior art, the utility model discloses big axle load multipurpose bogie, secondary hangs and adopts rubber spring and vertical bumper shock absorber, transverse damper cooperatees, can utilize rubber spring low rigidity, high elasticity's characteristic, it is vertical to the automobile body to realize, horizontal and longitudinal support reasonable matching of rigidity, can reduce the vertical vibration volume of bogie transmission to automobile body through vertical bumper shock absorber, can effectively reduce the transverse vibration volume of bogie transmission to automobile body through transverse damper, thereby improve vertical amount of deflection and the operation stationarity of automobile body under the heavy load condition, guarantee to take the travelling comfort when bogie carries on the passenger train automobile body and carry the vertical support intensity when freight train automobile body, compare in the air spring that the structure is complicated, can save installation space greatly, make things convenient for the installation overall arrangement of automobile body side apron board, and avoid the problem of being equipped with consuming time before the vehicle is sent out, compare in heavy full steel spring, can greatly reduced provision quality and the equipment degree of difficulty.

In a second aspect, the embodiment of the present invention further provides a rail vehicle, which includes the above-mentioned bogie for multipurpose with large axle weight, and has the same beneficial effects as the bogie for multipurpose with large axle weight, which is not repeated herein.

Drawings

Fig. 1 is a schematic perspective view of a large axle load multi-purpose bogie according to an embodiment of the present invention;

fig. 2 is a schematic side view of a multi-purpose bogie with large axle load according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a basic brake unit according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structural view of a rubber spring used in an embodiment of the present invention.

In the figure: 10. a frame; 11. a recessed mounting surface; 20. wheel set axle box positioning device; 21. wheel set assembly; 22. an axle box; 23. primary suspension; 30. a foundation brake unit; 31. a double-side hanging brake shoe; 40. a central traction unit; 50. secondary suspension; 51. a vertical shock absorber; 52. a transverse damper; 53. a rubber spring; 531. a partition plate; 5311. a top pillar; 532. an elastic rubber body; 5321. a cavity; 533. an upper metal plate; 534. a lower metal plate; 535. an elastic limit column.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4 together, the utility model provides a multipurpose bogie with large axle load will be described. The large axle load multipurpose bogie comprises a framework 10, two sets of wheel-pair axle box positioning devices 20, a foundation brake unit 30, a central traction unit 40 and two sets of secondary suspensions 50, wherein the two sets of wheel-pair axle box positioning devices, the foundation brake unit 30, the central traction unit 40 and the two sets of secondary suspensions 50 are arranged on the framework 10; the wheel-set axle box positioning device 20 comprises a wheel-set assembly 21, an axle box assembly 22 and a primary suspension 23 connected between the axle box and the framework 10; the foundation brake unit 30 includes bilateral hanging brake shoes 31 corresponding to each wheel, two groups of secondary suspensions 50 are located at both sides of the frame 10 and used for connecting the vehicle body, respectively, and the central traction unit 40 is located in the middle of the two groups of secondary suspensions 50; the secondary suspension 50 comprises a vertical shock absorber, a transverse shock absorber 52 and a rubber spring 53; wherein, one end of the vertical shock absorber 51 is connected with the framework 10, and the other end is used for connecting with the vehicle body; one end of the transverse damper 52 is connected to the frame 10, and the other end is used for connection to the vehicle body; the rubber spring 53 is vertically and fixedly connected to the middle part of the side beam of the frame 10 and is positioned at the side of the vertical shock absorber 51, and the top end of the rubber spring 53 is used for supporting the vehicle body.

It should be noted that in the present embodiment, the frame 10 is of a conventional H-shaped structure, including side beams, cross beams, longitudinal beams, rubber spring 53 seat plates, vertical shock absorbers 51 seats and brake hangers.

Axle box positioner adopts conventional structure, and wherein, the primary suspension 23 includes a round steel spring, rubber pad and adjustment pad, can cushion effectively and attenuate the vertical vibration of vehicle, and its locate mode adopts guide pillar formula elastic positioning mode, and the whole vulcanization one shot forming's of installation elastic positioning cover on the guide pillar is handled in its outer steel bushing surface quenching, improves the wearability, and the axle box is constituteed 22 and is equipped with self-lubricating friction cover, is suitable for to use under the environment of dry friction, need not to refuel the lubrication.

The basic brake unit 30 adopts conventional lever transmission, the brake shoes adopt high friction coefficient composite brake shoes, in order to improve the brake force of the bogie of the large-axle-load vehicle, the brake mode is bilateral brake shoe brake, and is a double-piece hanging direct action type, namely bilateral hanging brake shoes 31; the whole set of basic brake unit 30 consists of a movable lever, a movable lever pulling plate, a pulling plate hanger, an upper pulling rod, a connecting plate, a brake beam, a brake round pin, a safety hanger, a brake block support, a brake shoe and a brake shoe gap adjusting device, wherein the movable lever and the pulling plate hanger are integrally welded and are hung on the framework 10, the brake block support hanger is of a two-hole structure, during braking, the movable lever drives the brake beam to directly push the brake block support and the brake shoe to act, and for safety, the brake block support hanger is required to carry out electromagnetic flaw detection and has no cracks; the anti-falling check ring is arranged at the position of the braking round pin, the split pin of each round pin is a flat split pin, and the braking pin and the braking sleeve are made of materials with good wear resistance and high strength.

In addition, the central traction unit 40 of the embodiment can be adjusted on a conventional basis according to the structure of the secondary suspension 50 based on the elastic longitudinal-blocking traction principle, and mainly comprises a traction seat and an elastic longitudinal block, and compared with the structure adopting a single pull rod and a Z-shaped traction pull rod, the structure after adjustment has the advantages of simple structure, long service life and small maintenance workload.

Compared with the prior art, the multipurpose bogie with large axle weight provided by the embodiment is characterized in that the secondary suspension 50 is matched with a rubber spring 53 and a vertical shock absorber and a transverse shock absorber 52, the characteristics of low rigidity and high elasticity of the rubber spring 53 can be utilized, the reasonable matching of the vertical, transverse and longitudinal supporting rigidity of the bogie body is realized, the vertical vibration quantity transmitted to the bogie body by the bogie can be reduced through the vertical shock absorber 51, the transverse vibration quantity transmitted to the bogie body by the bogie can be effectively reduced through the transverse shock absorber 52, so that the vertical deflection and running stability of the bogie body under a heavy load condition are improved, the riding comfort when the bogie carries the passenger train body and the vertical supporting strength when the bogie carries the truck body are ensured, compared with an air spring with a complex structure, the installation space can be greatly saved, the installation layout of a skirt plate on the side of the bogie body is facilitated, the problem of time consumption in the preparation before the departure of a vehicle is avoided, compared with a heavy all-steel spring, the preparation quality and the assembly difficulty can be greatly reduced.

In some embodiments, referring to fig. 4, the rubber spring 53 includes a diaphragm 531, two elastic rubber bodies 532, an upper and a lower metal plates 534 and a lower metal plate 534; wherein, the two elastic rubber bodies 532 are distributed on the upper and lower sides of the partition 531 in a mirror image manner, and the elastic rubber bodies 532 have cavities 5321 which penetrate through the two ends thereof along the axial direction thereof; the upper metal plate 533 is fixedly connected to the top end of the upper elastic rubber body 532 for supporting the vehicle body; the lower metal plate 534 is fixedly connected to the bottom end of the elastic rubber body 532 below, and is connected to the frame 10.

Adopt two elastic rubber body 532 can improve compressible stroke, improve the filtration capacity to vertical vibration, thereby promote the riding comfort, and because two elastic rubber body 532 lug connection lack the rigidity and support, the reliability is relatively poor, consequently, adopt baffle 531 as the transitional coupling between two elastic rubber body 532, when elastic rubber body 532 receives extrusion inflation, the inflation position can be supported by baffle 531, thereby avoid elastic rubber body 532 to take place radial offset, simultaneously in order to improve elastic rubber body 532's vertical support flexibility, the elastic rubber body 532 who has cavity 5321 is adopted here.

As an embodiment of the elastic rubber body 532, please refer to fig. 4, the elastic rubber body 532 is a revolving structure, and the diameter of the rubber body gradually increases or decreases from one end to the other end along the axial direction. It can be understood that the elastic rubber body 532 is of a conical bowl type or a bell jar type, and can improve vertical support stability and avoid side tilting.

Preferably, in this embodiment, referring to fig. 4, the small diameter ends of the two elastic rubber bodies 532 are opposite, and the diameter of the cavity 5321 gradually increases from the small diameter end of the elastic rubber body 532 to the large diameter end. The two elastic rubber bodies 532 are in hourglass butt joint, so that the connection stability between the two elastic rubber bodies 532 and the framework 10 and the vehicle body can be improved, and the expansion deformation of the elastic rubber bodies 532 can be extruded on the upper plate surface and the lower plate surface of the partition 531 respectively, so that the interference between the two elastic rubber bodies 532 and the connection position of the framework 10 or the vehicle body can be avoided.

In some possible implementations, referring to fig. 4, the center of the small diameter end of the elastic rubber body 532 is formed with an insertion hole communicating with the cavity 5321, the centers of the upper and lower plate surfaces of the partition 531 are both provided with the top pillar 5311, and the top pillar 5311 is embedded in the insertion hole. The reliability of connection between the partition 531 and the two elastic rubber bodies 532 can be improved by the two support columns 5311 respectively embedded in the embedding holes, and the overall vertical support stability of the rubber spring 53 can be improved by the reinforcing effect of the support columns 5311 on the small diameter ends of the elastic rubber bodies 532.

In some embodiments, as shown in fig. 4, the elastic limiting columns 535 are disposed at the center of the lower plate surface of the upper metal plate 533 and the center of the upper plate surface of the lower metal plate 534, and the two elastic limiting columns 535 respectively extend into the two cavities 5321 along the axial direction of the top columns 5311 and have vertical gaps with the two top columns 5311. Can be when the automobile body is heavily loaded with fore-set 5311 butt through setting up spacing post 535 of elasticity, thereby form vertical holding power, avoid the elastic rubber body 532 transitional compression and damage, improve the support stability to the heavily loaded automobile body, that is to say, under no-load or light load state, two elastic rubber body 532 themselves provide vertical support and damping, when heavily loaded, elastic rubber body 532 and spacing post 535 of elasticity provide vertical support and damping simultaneously, satisfy the heavy vehicle user demand of heavy axle.

Specifically, referring to fig. 4, the resilient retention post 535 in this embodiment is a rubber steel plate laminated spring. As a mature component in the prior art, the rubber steel plate laminated spring is directly used as the elastic limiting column 535, so that the reliability is high and the cost is low.

Referring to fig. 4, in this embodiment, the areas of the plate surfaces of the partition 531, the upper metal plate 533 and the lower metal plate 534 are equal and are all larger than the diameter of the large-diameter end of the elastic rubber body 532. On the one hand, the connection convenience can be improved, and on the other hand, the plate surface exceeding the outer diameter part of the elastic rubber body 532 can provide support for the elastic rubber body 532 after the compression expansion deformation, so that the vertical support stability is improved.

It should be understood that, in the present embodiment, referring to fig. 2, the frame 10 is provided with a recessed mounting surface 11 at the middle of each of the two side beams, and the two sets of secondary suspensions 50 are respectively connected to the two recessed mounting surfaces 11. The installation height of the vehicle body can be reduced by arranging the concave installation surface 11, and the space is saved.

Based on the same inventive concept, as understood in conjunction with fig. 1 to 4, the embodiment of the present application also provides a railway vehicle including the large axle weight multipurpose bogie.

Compared with the prior art, the railway vehicle provided by the embodiment adopts the multipurpose bogie with the large axle weight, wherein the secondary suspension 50 adopts the rubber spring 53 to be matched with the vertical shock absorber and the transverse shock absorber 52, the characteristics of low rigidity and high elasticity of the rubber spring 53 can be utilized, the reasonable matching of the vertical, transverse and longitudinal supporting rigidity of the vehicle body is realized, the vertical vibration quantity transmitted to the vehicle body by the bogie can be reduced through the vertical shock absorber 51, the transverse vibration quantity transmitted to the vehicle body by the bogie can be effectively reduced through the transverse shock absorber 52, so that the vertical deflection and running stability of the vehicle body under the heavy load condition are improved, the riding comfort when the bogie carries a passenger vehicle body and the vertical supporting strength when the truck body is carried are ensured, compared with an air spring with a complex structure, the installation space can be greatly saved, the installation layout of the vehicle body side is convenient, the problem of time consumption of the apron board during the servicing before the vehicle is sent out is avoided, the apron board is compared with a heavy all-steel spring, the servicing quality and the assembling difficulty can be greatly reduced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The large axle load multipurpose bogie comprises a framework, two sets of wheel set axle box positioning devices, a foundation braking unit, a central traction unit and two sets of secondary suspensions, wherein the two sets of wheel set axle box positioning devices, the foundation braking unit, the central traction unit and the two sets of secondary suspensions are arranged on the framework; the wheel-set axle box positioning device comprises a wheel set, an axle box assembly and a primary suspension connected between the axle box and the framework; the basic brake unit comprises bilateral hanging brake shoes corresponding to wheels respectively, two groups of secondary suspensions are located on two sides of the framework respectively and used for connecting a vehicle body respectively, and the central traction unit is located between the two groups of secondary suspensions, and the secondary suspensions comprise:

one end of the vertical shock absorber is connected with the framework, and the other end of the vertical shock absorber is connected with the vehicle body;

one end of the transverse shock absorber is connected with the framework, and the other end of the transverse shock absorber is connected with the vehicle body;

and the rubber spring is vertically and fixedly connected to the middle part of the side beam of the framework and is positioned on the side of the vertical shock absorber, and the top end of the rubber spring is used for supporting the vehicle body.

2. The large axle weight utility truck of claim 1, characterized in that the rubber spring comprises:

a partition plate;

the two elastic rubber bodies are distributed on the upper side and the lower side of the partition plate in a mirror image mode, and each elastic rubber body is provided with a cavity which penetrates through the two ends of the elastic rubber body along the axial direction of the elastic rubber body;

the upper metal plate is fixedly connected to the top end of the elastic rubber body above the upper metal plate and used for supporting the vehicle body;

and the lower metal plate is fixedly connected to the bottom end of the elastic rubber body below and is connected with the framework.

3. The large axle weight multipurpose bogie of claim 2, wherein said elastic rubber body is of a solid of revolution structure, and the diameter of said rubber body gradually increases or decreases from one end to the other end in the axial direction thereof.

4. The large axle weight multipurpose bogie of claim 3, wherein the small diameter ends of the two elastic rubber bodies are opposite to each other, and the diameter of the cavity is gradually increased from the small diameter end to the large diameter end of the elastic rubber body.

5. The multipurpose bogie with large axle weight according to claim 4, wherein the elastic rubber body has a small diameter end with a central embedded hole communicated with the cavity, and the partition plate has top pillars at the centers of the upper and lower plate surfaces, and the top pillars are embedded in the embedded holes.

6. The multipurpose bogie with large axle load according to claim 5, wherein the lower plate surface center of the upper metal plate and the upper plate surface center of the lower metal plate are provided with elastic limiting columns, and the two elastic limiting columns respectively extend into the two cavities along the axial direction of the jacking columns and have vertical gaps with the two jacking columns.

7. The large axle weight utility bogie of claim 6, wherein the resilient restraint posts are rubber steel laminated springs.

8. The large axle weight utility bogie of claim 4, wherein the partition plate, the upper metal plate and the lower metal plate have equal plate surface areas and are all larger than the diameter of the large diameter end of the elastic rubber body.

9. The large axle weight multi-purpose bogie of any one of claims 1 to 8, wherein each of the two side beams of the framework is provided with a recessed mounting surface in the middle, and two sets of said secondary suspensions are respectively connected to the two recessed mounting surfaces.

10. Railway vehicle, characterized in that it comprises a large axle-weight utility bogie according to any of claims 1-9.

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