WO2018196392A1

WO2018196392A1 - Central traction device for railway vehicle and railway vehicle

Info

Publication number: WO2018196392A1
Application number: PCT/CN2017/115541
Authority: WO
Inventors: 陈经纬; 李辰生; 裴鹏; 张硕; 赵峰
Original assignee: 中车唐山机车车辆有限公司
Priority date: 2017-04-26
Filing date: 2017-12-12
Publication date: 2018-11-01
Also published as: CN107117183A; CN107117183B

Abstract

A central traction device for a railway vehicle and a railway vehicle, relating to railway vehicle technology. The central traction device for a railway vehicle comprises: a center pin (100) and rubber buffers (200); the center pin (100) comprises a connecting seat (110) for connecting to a sleeper beam and a connecting plate (120) for connecting to the rubber buffers (200), the connecting seat (110) being provided above the connecting plate (120); at least two rubber buffers (200) are connected to the connecting plate (120), and the ends of the rubber piles (200), facing away from the center pin (100), are used for connecting to a framework. The railway vehicle comprises: a sleeper beam, a framework, and a central traction device connecting the sleeper beam to the framework, the central traction device being the described central traction device for the railway vehicle. The connecting plate (120) of the center pin (100) is connected to the two rubber buffers (200) and the rubber buffers (200) are connected to the framework, effectively reducing the number of steel castings in the central traction device, greatly reducing the weight of the central traction device, making for a lighter-weight vehicle.

Description

Central traction device and rail vehicle for rail vehicles

This application claims the priority of the Chinese Patent Application entitled "Central traction device for rail vehicles and rail vehicles" filed on April 26, 2017, with the application number of 201710283048.1, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to rail vehicle technology, and more particularly to a central traction device for rail vehicles and a rail vehicle.

Background technique

The central traction device of the rail vehicle is installed between the bogie and the vehicle body for transmitting longitudinal, lateral, vertical and torsional forces between the bogie and the vehicle body. The central traction device is arranged to cause a certain relative movement between the vehicle body and the bogie, which is beneficial to improve the curve passing ability of the vehicle, reduce the longitudinal impact between the vehicle body and the bogie, and reduce the curve section between the wheel and the rail. Wear.

In the prior art, a Z-shaped central traction device is commonly used, specifically, a center pin, a traction beam, a center pin sleeve, and two traction rods arranged in a zigzag shape, and the train is in operation through the traction rod and the traction beam. The longitudinal force provides slewing damping during vehicle operation through the squeezing deformation of the rubber in the center pin bushing, providing lateral damping of the vehicle operation through the rubber joints and lateral stops of the traction struts. Among them, since the materials of the center pin, the traction beam and the traction rod are all made of cast steel, the weight of the central traction device is large, which leads to a large energy consumption of the rail vehicle.

Summary of the invention

In view of the above-discussed deficiencies in the prior art, the present invention provides a central traction device and a rail vehicle for a rail vehicle that reduces the weight of the central traction device, which in turn helps to reduce energy consumption.

A first aspect of the present invention provides a central traction device for a rail vehicle, comprising: a center pin and a rubber pile; the center pin including a connection seat for connection with the bolster, and for the rubber a connecting connecting plate, the connecting seat is disposed above the connecting plate; wherein the connecting plate is connected with at least two rubber piles, and the rubber pile is away from the One end of the center pin is used to connect to the frame.

Further, two opposite surfaces of the connecting plate are respectively provided with mounting faces for mounting the rubber pile.

Further, the connecting plate is provided with a mounting groove for mounting the rubber pile, and at least two of the mounting grooves are diagonally disposed.

Further, the mounting groove includes a bottom wall and a side wall that is in contact with an end surface of the rubber pile, the side wall is facing away from an end of the connecting plate facing away from the connecting seat toward an end of the connecting seat The rubber pile is tilted.

Further, the bottom end of the connecting plate is provided with a pressing plate for abutting against the rubber pile.

Further, the rubber pile is provided with a groove toward a lower side of one end of the connecting plate, and a portion of the pressing plate is received in the groove.

Further, the pressure plate is screwed to the connecting plate.

Further, the connecting plate is further provided with at least two mounting seats for mounting the lateral stops; wherein at least two of the mounting seats are disposed diagonally.

Further, an end surface of the rubber pile facing away from one end of the center pin is a plane; and/or the rubber pile is formed by vulcanization of a metal rubber.

Another aspect of the present invention provides a rail vehicle comprising: a bolster, a frame, and a central traction device connecting the bolster and the frame, wherein the central traction device is used for the track according to any of the foregoing The central traction device of the vehicle.

The central traction device and the rail vehicle for a rail vehicle provided by the invention connect two rubber piles through the connecting plate of the center pin, and the rubber pile connection frame effectively reduces the number of steel castings in the central traction device and greatly reduces The weight of the central traction device is beneficial to the weight of the vehicle.

DRAWINGS

1 is a schematic structural view of a central traction device for a rail vehicle according to an embodiment of the present invention;

2 is a schematic structural view of a rubber pile in a central traction device for a rail vehicle according to an embodiment of the present invention;

3 is a schematic structural view of a center pin in a central traction device for a rail vehicle according to an embodiment of the present invention.

among them,

100-center pin; 100a-mounting slot;

110-connecting seat; 120-connecting plate;

120a-first surface; 200-rubber pile;

200a-groove; 200b-beveled end;

200c-plane end; 300-platen;

310-fastener; 400- lateral stop.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments.

All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention. The features of the embodiments and examples described below can be combined with each other without conflict.

The terms "upper" and "lower" are used to describe the relative positional relationship of the various structures in the drawings, and are merely for convenience of description, and are not intended to limit the scope of the invention. Changes or adjustments are also considered to be within the scope of the invention, without departing from the scope of the invention.

It should be noted that in the description of the present invention, the terms "first" and "second" are used merely to facilitate the description of different components, and are not to be construed as indicating or implying a sequence relationship, relative importance or implicit indication. The number of technical features. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly.

The bogie is mainly used to support the vehicle body, to withstand and transmit various loads and forces from the vehicle body to the wheels or from the wheel rails to the vehicle body, and to evenly distribute the axle weight. A central traction device is generally disposed between the bogie and the vehicle body, and the central traction device can transmit both longitudinal force and lateral force, and realize a certain range of rotation, allowing the vehicle body to traverse within a certain range relative to the bogie. .

1 is a schematic structural view of a central traction device for a rail vehicle according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a rubber pile in a central traction device for a rail vehicle according to an embodiment of the present invention; Schematic diagram of the center pin in the central traction device of a rail vehicle.

Referring to Figures 1-3, the present embodiment provides a central traction device for a rail vehicle, comprising: a center pin 100 and a rubber pile 200; the center pin 100 includes a connector 110 for connection with the bolster, and The connecting plate 120 connected to the rubber pile 200 is disposed above the connecting plate 120; wherein the connecting plate 120 is connected with at least two rubber piles 200, and one end of the rubber pile 200 facing away from the center pin 100 is connected to the frame.

Specifically, the connecting seat 110 of the center pin 100 can be detachably connected to the bolster of the vehicle body by bolts, and the connecting seat 110 of the center pin 100 can also be provided with a lifting pin so as to be in the process of maintenance or loading and unloading. Lifting of the traction device. The rubber pile 200 may specifically be a columnar structure formed by stacking. Wherein, the rubber pile 200 can be connected to the connecting plate 120 of the center pin 100 by flange or bonding; during the running of the rail vehicle, the longitudinal force of the rail vehicle can be transmitted through the compression rubber pile 200, and the rotary damping can pass The deflection compression of the rubber pile 200 is achieved, and lateral deformation through the rubber pile 200 can also provide lateral damping during operation.

Further, the present embodiment does not specifically limit the number of the rubber piles 200, but it is understood that the number of the rubber piles 200 on both sides of the center pin 100 is the same.

The central traction device for a rail vehicle provided by this embodiment connects two rubber piles 200 through the connecting plate 120 of the center pin 100, and connects the frame through the rubber pile 200, thereby effectively reducing the number of steel castings in the central traction device. The weight of the central traction device is reduced, which is advantageous for vehicle weight reduction.

Further, the rubber pile 200 may be vulcanized by a metal rubber so that the rubber pile 200 has both the rigidity characteristic of the metal and the elasticity of the rubber, and can effectively improve the reliability of the central traction device.

Further, the opposite surfaces of the connecting plate 120 are respectively provided with mounting faces for mounting the rubber pile 200. Specifically, a mounting method such as screwing or bonding may be employed.

Further, the connecting plate 120 is provided with a mounting groove 100a for mounting the rubber pile 200. The number of the mounting grooves 100a is the same as the number of the rubber piles 200. The mounting groove 100a includes a bottom wall and a side wall that is in contact with the end surface of the rubber pile 200. The side wall is inclined from the end of the connecting plate 120 facing away from the connecting seat 110 toward the end of the connecting seat 110 toward the rubber pile 200.

The connection plate 120 is provided with two mounting slots 100a as an example: the connecting plate 120 includes a first end surface, a second end surface, a first surface 120a, a second surface, a third surface, and a fourth a first end surface is connected to the connecting seat 110, the second end surface is disposed opposite to the first end surface, and the first surface 120a, the second surface, the third surface, and the fourth surface are connected between the first end surface and the second end surface; The first surface 120a is respectively connected to the second surface and the fourth surface, and the first surface 120a is disposed opposite to the third surface, the third surface is connected to the second surface and the fourth surface; and the first surface 120a and the second surface are One of the mounting slots 100a is provided, and the bottom wall of the mounting slot 100a is connected to the second surface, the side wall of the mounting slot 100a is connected to the first surface 120a; and another between the third surface and the fourth surface is disposed A mounting groove 100a is connected to the fourth surface of the mounting groove 100a, and the side wall of the mounting groove 100a is connected to the third surface.

In this embodiment, the end surface of the rubber pile 200 facing the connecting plate 120 is a slope which is intended to fit the side wall of the mounting groove 100a; the end surface of the rubber pile 200 facing away from the end of the center pin 100 is flat to facilitate connection with the frame.

Further, the bottom end of the connecting plate 120 is provided with a pressing plate 300 for abutting against the rubber pile 200.

Specifically, the pressure plate 300 may be coupled to the connecting plate 120 by a fastener 310 such as a bolt; the rubber pile 200 is provided with a recess 200a toward the lower side of one end of the connecting plate 120, and a portion of the pressing plate 300 is received in the recess 200a to The end of the rubber pile 200 toward the connecting plate 120 is restrained in the recess 200a, thereby ensuring reliable connection of the rubber pile 200 with the center pin 100, and preventing the rubber pile 200 from being detached from the center pin 100.

In the present embodiment, the structure of the pressure plate 300 is not specifically limited, and those skilled in the art can perform the setting according to actual needs, as long as the function of limiting the falling of the beveled end 200b of the rubber pile 200 and the center pin 100 can be realized. In addition, the number of the pressure plate 300 is not specifically limited in this embodiment, and those skilled in the art may set according to actual needs. For example, one pressure plate 300 may be disposed correspondingly for each rubber pile 200, or at least two rubber piles 200 may be shared. A pressure plate 300.

The installation process of the central traction device provided by this embodiment may be: connecting the connecting seat 110 of the center pin 100 with the bolster of the vehicle body; connecting the flat end 200c of the rubber pile 200 with the frame; and the bevel end 200b of the rubber pile 200 It is accommodated in the mounting groove 100a of the connecting plate 120, and the pressing plate 300 is abutted against the groove 200a of the rubber pile 200, and the pressing plate 300 is fastened to the connecting plate 120 by a fastener 310 such as a bolt. At this time, the pressing plate 300 will be Pushing the beveled end 200b of the rubber pile 200 upwardly causes the rubber pile 200 to be deformed to form a certain pre-compression, thereby forming the rubber pile 200 It is reliably connected to the connecting plate 120 of the center pin 100.

The beveled end 200b of the rubber pile 200 is one end of the rubber pile 200 whose end surface is a bevel; the flat end 200c of the rubber pile 200 refers to one end of the end surface of the rubber pile 200.

Further, the connecting plate 120 is further provided with at least two mounting seats for mounting the lateral stops 400; wherein at least two mounting seats are disposed diagonally.

For example, two mounting seats are disposed on the connecting plate 120. One of the mounting seats may be disposed on the first surface 120a and disposed away from the corresponding mounting groove 100a. The other mounting seat may be disposed on the third surface and away from the corresponding The installation slot 100a is provided.

In this embodiment, the lateral stop 400 is integrated into the central traction device by arranging the mounting of the lateral stop 400 on the center pin 100 to facilitate modular assembly of the central traction device. Moreover, in the present embodiment, lateral damping during train operation can be provided by lateral deformation of the rubber pile 200 and damping of the lateral stop 400.

The embodiment further provides a rail vehicle comprising: a bolster, a frame, and a central traction device connecting the bolster and the frame, the central traction device being the central traction device for the rail vehicle in any of the foregoing embodiments.

The structure and function of the central traction device are the same as or similar to those of the foregoing embodiment, and are not described herein again.

The embodiment provides a rail vehicle, which connects two rubber piles through the connecting plate of the center pin of the central traction device, and reduces the number of steel castings in the central traction device through the rubber pile connection frame, thereby greatly reducing the central traction. The weight of the device is beneficial to the weight of the vehicle.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A central traction device for a rail vehicle, comprising: a center pin and a rubber pile; the center pin includes a connection seat for connection with the bolster, and a connection plate for connecting with the rubber pile The connecting seat is disposed above the connecting plate; wherein the connecting plate is connected with at least two rubber piles, and an end of the rubber pile facing away from the center pin is used for connecting with the frame.
The central traction device for a rail vehicle according to claim 1, wherein the opposite surfaces of the connecting plates are respectively provided with mounting faces for mounting the rubber pile.
The central traction device for a rail vehicle according to claim 1, wherein the connecting plate is provided with a mounting groove for mounting the rubber pile, and at least two of the mounting grooves are diagonally disposed.
A central traction device for a rail vehicle according to claim 3, wherein the bottom end of the connecting plate is provided with a pressure plate for abutting against the rubber pile.
A central traction device for a rail vehicle according to claim 4, wherein said mounting groove includes a bottom wall and a side wall that is fitted to an end surface of said rubber pile, said side wall being said connecting plate An end facing away from the connecting seat is inclined toward the rubber pile toward an end facing the connecting seat.
A central traction device for a rail vehicle according to claim 5, wherein said rubber pile is provided with a groove toward a lower side of one end of said connecting plate, and a portion of said pressure plate is housed in said concave portion In the slot.
A central traction device for a rail vehicle according to claim 4, wherein said pressure plate is screwed to said connecting plate.
A central traction device for a rail vehicle according to claim 3, wherein said connecting plate is further provided with at least two mounting seats for mounting lateral stops; wherein at least two of said mounting seats are provided Set diagonally.
The central traction device for a rail vehicle according to claim 1, wherein an end surface of the rubber pile facing away from an end of the center pin is a flat surface; and/or the rubber pile is formed by vulcanization of a metal rubber.
A rail vehicle, comprising: a bolster, a frame, and a connection A central traction device for a bolster, a frame, wherein the central traction device is a central traction device for a rail vehicle according to any of claims 1-9.