CN107117183B

CN107117183B - Central traction device for railway vehicle and railway vehicle

Info

Publication number: CN107117183B
Application number: CN201710283048.1A
Authority: CN
Inventors: 陈经纬; 李辰生; 裴鹏; 张硕; 赵峰
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2017-04-26
Filing date: 2017-04-26
Publication date: 2020-03-24
Anticipated expiration: 2037-04-26
Also published as: WO2018196392A1; CN107117183A

Abstract

The invention provides a central traction device for a railway vehicle and the railway vehicle, and relates to the railway vehicle technology. The central traction device for a rail vehicle comprises: a center pin and a rubber pile; the center pin comprises a connecting seat used for being connected with a sleeper beam and a connecting plate used for being connected with the rubber pile, and the connecting seat is arranged above the connecting plate; wherein at least two rubber piles are connected to the connecting plate, and one end of the rubber pile, which is far away from the center pin, is used for being connected with a framework. The rail vehicle includes: the central traction device is the central traction device for the railway vehicle. The connecting plate of the center pin is connected with the two rubber piles, and the rubber piles are connected with the framework, so that the number of steel castings in the central traction device is effectively reduced, the weight of the central traction device is greatly reduced, and the lightweight of a vehicle is facilitated.

Description

Central traction device for railway vehicle and railway vehicle

Technical Field

The invention relates to the railway vehicle technology, in particular to a central traction device for a railway vehicle and the railway vehicle.

Background

The central traction device of the railway vehicle is arranged between the bogie and the vehicle body and is used for transmitting longitudinal, transverse, vertical and torsional acting forces between the bogie and the vehicle body. The central traction device can enable the vehicle body and the bogie to generate certain relative motion, thereby being beneficial to improving the curve passing capacity of the vehicle, slowing down the longitudinal impact between the vehicle body and the bogie and reducing the abrasion between the curve section wheel rails.

In the prior art, a Z-shaped central traction device is commonly used, and specifically comprises a central pin, a traction beam, a central pin sleeve and two traction pull rods arranged in a Z shape, wherein longitudinal force in the running process of a train is transmitted through the traction pull rods and the traction beam, rotary damping in the running process of the vehicle is provided through extrusion deformation of rubber in the central pin sleeve, and transverse damping in the running process of the vehicle is provided through a rubber joint and a transverse stop of the traction pull rod. The central pin, the draft sill and the draft link are made of cast steel, which results in a heavy central draft gear and thus in a high energy consumption of the railway vehicle.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a central traction device for a rail vehicle and a rail vehicle, which reduce the weight of the central traction device and thus contribute to reducing 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 comprises a connecting seat used for being connected with a sleeper beam and a connecting plate used for being connected with the rubber pile, and the connecting seat is arranged above the connecting plate; wherein at least two rubber piles are connected to the connecting plate, and one end of the rubber pile, which is far away from the center pin, is used for being connected with a framework.

Further, two oppositely arranged surfaces of the connecting plate are respectively provided with a mounting surface, and the mounting surfaces are used for mounting the rubber piles.

Furthermore, the connecting plate is provided with mounting grooves for mounting the rubber piles, and at least two mounting grooves are arranged diagonally.

Further, the mounting groove includes the diapire and with the lateral wall of the terminal surface laminating of rubber heap, the lateral wall by the connecting plate deviates from the one end of connecting seat is to the orientation the one end orientation of connecting seat the rubber heap slope sets up.

Further, a pressing plate is arranged at the bottom end of the connecting plate and used for abutting against the rubber pile.

Further, the lower side of one end of the rubber pile facing the connecting plate is provided with a groove, and part of the pressing plate is accommodated in the groove.

Further, the pressing plate is in threaded connection with the connecting plate.

Furthermore, at least two mounting seats for mounting transverse stoppers are arranged on the connecting plate; wherein, at least two the mount pad is the diagonal setting.

Further, the end face of one end of the rubber pile, which is far away from the center pin, is a plane; and/or the rubber pile is formed by vulcanizing metal rubber.

Another aspect of the present invention provides a rail vehicle, including: the central traction device is the central traction device for the railway vehicle.

According to the central traction device for the railway vehicle and the railway vehicle, the two rubber piles are connected through the connecting plate of the center pin, and the rubber piles are connected with the framework, so that the number of steel castings in the central traction device is effectively reduced, the weight of the central traction device is greatly reduced, and the light weight of the vehicle is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a central draft gear for a railway vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a rubber compound stack for a central draft gear of a railway vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a center pin of a central traction device for a railway vehicle according to an embodiment of the present invention.

Wherein the content of the first and second substances,

100-a center pin; 100 a-a mounting groove;

110-a connecting seat; 120-a connecting plate;

120 a-a first surface; 200-rubber pile;

200 a-a groove; 200 b-beveled end;

200 c-plane end; 300-pressing plate;

310-a fastener; 400-lateral stop.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The terms "upper" and "lower" are used for describing relative positions of the structures in the drawings, and are only for the sake of clarity, but not for limiting the scope of the present invention, and the relative relationship changes or adjustments are also considered to be within the scope of the present invention without substantial technical changes.

It should be noted that the terms "first" and "second" in the description of the present invention are used merely for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The bogie is mainly used for supporting a vehicle body, bearing and transmitting various loads and acting forces from the vehicle body to wheels or from wheel tracks to the vehicle body, and enabling axle weights to be uniformly distributed. A central traction device is usually provided between the bogie and the vehicle body, and the central traction device can transmit both longitudinal and lateral forces, and can realize rotation within a certain range and allow transverse movement of the vehicle body relative to the bogie within a certain range.

FIG. 1 is a schematic structural diagram of a central draft gear for a railway vehicle according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a rubber compound stack for a central draft gear of a railway vehicle according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a center pin of a central traction device for a railway vehicle according to an embodiment of the present invention.

Referring to fig. 1 to 3, the present embodiment provides a central traction device for a railway vehicle, including: a center pin 100 and a rubber pile 200; the center pin 100 includes a connection seat 110 for connection with the bolster, and a connection plate 120 for connection with the rubber pile 200, the connection seat 110 being disposed above the connection plate 120; wherein at least two rubber stacks 200 are connected to the connection plate 120, the end of the rubber stacks 200 facing away from the centre pin 100 being intended for connection to a frame.

Specifically, the coupling seat 110 of the center pin 100 may be detachably coupled to a bolster of a vehicle body by a bolt, and a lifting pin may be further provided on the coupling seat 110 of the center pin 100 to facilitate lifting of the traction apparatus during maintenance or loading and unloading. The rubber pile 200 may be a columnar structure formed by stacking. Wherein the rubber pile 200 may be connected to the connection plate 120 of the center pin 100 by a flange or an adhesive; during operation of the rail vehicle, longitudinal forces of the rail vehicle can be transmitted by compressing the rubber stack 200, slewing damping can be achieved by deflective compression of the rubber stack 200, and lateral damping during operation can also be provided by lateral deformation of the rubber stack 200.

In addition, the number of rubber piles 200 is not particularly limited in the present embodiment, but it is understood that the number of rubber piles 200 on both sides of the center pin 100 is the same.

According to the central traction device for the railway vehicle, the two rubber piles 200 are connected through the connecting plate 120 of the center pin 100, and the rubber piles 200 are connected with the framework, so that the number of steel castings in the central traction device is effectively reduced, the weight of the central traction device is greatly reduced, and the light weight of the vehicle is facilitated.

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

Further, mounting surfaces for mounting the rubber pile 200 are provided on the two oppositely disposed surfaces of the connection plate 120, respectively. Specifically, mounting means such as screwing, bonding, and the like may be employed.

Further, the connection plate 120 is opened with an installation groove 100a for installing the rubber pile 200. The number of the mounting grooves 100a is the same as the number of the rubber piles 200. Wherein, mounting groove 100a includes the diapire and with the lateral wall of the terminal surface laminating of rubber heap 200, the lateral wall is set up towards the slope of rubber heap 200 by the one end that connecting plate 120 deviates from connecting seat 110 to the one end towards connecting seat 110.

The connection plate 120 is provided with two mounting grooves 100a for illustration: 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 surface, the first end surface is connected to the connecting seat 110, the second end surface is parallel to and 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 with the second surface and the fourth surface, the first surface 120a and the third surface are arranged oppositely in parallel, and the third surface is connected with the second surface and the fourth surface; one mounting groove 100a is formed between the first surface 120a and the second surface, the bottom wall of the mounting groove 100a is connected with the second surface, and the side wall of the mounting groove 100a is connected with the first surface 120 a; another mounting groove 100a is provided between the third surface and the fourth surface, a bottom wall of the mounting groove 100a is connected to the fourth surface, and a 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 connection plate 120 is an inclined surface to be attached to the side wall of the mounting groove 100 a; the end surface of the rubber stack 200 facing away from the end of the center pin 100 is flat to facilitate connection with the frame.

Further, a bottom end of the connection plate 120 is provided with a pressing plate 300, and the pressing plate 300 is used to abut against the rubber pile 200.

Specifically, the pressing plate 300 may be connected to the connection plate 120 by a fastener 310 such as a bolt; the lower side of the end of the rubber stack 200 facing the connection plate 120 is provided with a groove 200a, and a portion of the pressing plate 300 is received in the groove 200a to restrain the end of the rubber stack 200 facing the connection plate 120 in the groove 200a, thereby ensuring reliable connection of the rubber stack 200 to the center pin 100 and preventing the rubber stack 200 from being separated from the center pin 100.

In this embodiment, the structure of the pressing plate 300 is not specifically limited, and those skilled in the art can set the pressing plate according to actual needs as long as the function of limiting the falling-off of the bevel end 200b of the rubber pile 200 and the center pin 100 can be realized. In addition, the number of the pressing plates 300 is not specifically limited in this embodiment, and those skilled in the art can set the number according to actual needs, for example: one pressing plate 300 may be correspondingly arranged for each rubber stack 200, or at least two rubber stacks 200 may share one pressing plate 300.

The installation process of the central traction device provided by the embodiment can be as follows: connecting the connecting seat 110 of the center pin 100 with a bolster of a vehicle body; attaching the flat end 200c of the rubber stack 200 to the frame; the inclined end 200b of the rubber stack 200 is received in the mounting groove 100a of the connecting plate 120, the pressing plate 300 is abutted against the groove 200a of the rubber stack 200, and the pressing plate 300 is fastened to the connecting plate 120 by a fastener 310 such as a bolt, and at this time, the pressing plate 300 pushes the inclined end 200b of the rubber stack 200 upward, so that the rubber stack 200 is deformed to form a certain pre-compression, thereby reliably connecting the rubber stack 200 to the connecting plate 120 of the center pin 100.

Wherein, the inclined end 200b of the rubber pile 200 is the end of the rubber pile 200 with the end face being an inclined plane; the flat end 200c of the rubber stack 200 refers to an end of the rubber stack 200 whose end face is flat.

Further, at least two mounting seats for mounting the transverse stoppers 400 are further arranged on the connecting plate 120; wherein, at least two mount pads are the diagonal setting.

Taking the connecting plate 120 provided with two mounting seats as an example, one of the mounting seats may be disposed on the first surface 120a and away from the corresponding mounting groove 100 a; another mounting seat may be provided on the third surface and away from the corresponding mounting groove 100 a.

In this embodiment, the integration of the lateral stops 400 in the central pulling apparatus facilitates the modular assembly of the central pulling apparatus by providing the mounting seats of the lateral stops 400 on the central pin 100. Also, in this embodiment, lateral damping during train operation can be provided by lateral deformation of the rubber pile 200 and damping of the lateral stops 400.

The present embodiment also provides a rail vehicle, including: a sleeper beam, a framework and a central traction device connecting the sleeper beam and the framework, wherein the central traction device is the central traction device for the railway vehicle in any one of the embodiments.

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

The embodiment provides a rail vehicle, connects two rubber heaps through the connecting plate of central pin of central draw gear, connects the framework through the rubber heap, has effectively reduced the quantity of cast steel among the central draw gear, has reduced central draw gear's weight greatly, does benefit to the vehicle lightweight.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A central traction device for a rail vehicle, comprising: a center pin and a rubber pile; the center pin comprises a connecting seat and a connecting plate, the connecting seat is used for being connected with a sleeper beam, the connecting plate is used for being connected with the rubber pile, the connecting seat is arranged above the connecting plate, and the rubber pile is of a columnar structure formed by stacking; wherein at least two rubber piles are connected to the connecting plate, and one end of each rubber pile, which is far away from the center pin, is used for being connected with a framework;

offer on the connecting plate and be used for the installation the mounting groove of rubber heap, at least two the mounting groove is the diagonal angle setting, the mounting groove include the diapire and with the lateral wall of the terminal surface laminating of rubber heap, the lateral wall by the connecting plate deviates from the one end of connecting seat is to the orientation the one end orientation of connecting seat the slope setting is piled to rubber, the terminal surface of rubber heap be with the inclined plane that the lateral wall laminated mutually, the bottom of connecting plate is provided with the clamp plate, the clamp plate be used for with the rubber heap offsets.

2. The central draft gear for a railway vehicle according to claim 1, wherein the connection plate is provided with mounting surfaces on both surfaces thereof which are oppositely disposed, respectively, the mounting surfaces being used for mounting a rubber pile.

3. Central pulling device for rail vehicles, according to claim 1, characterized in that the rubber pile is provided with a groove on its underside towards one end of the connecting plate, in which groove a part of the pressure plate is accommodated.

4. The central draft gear for a railway vehicle according to claim 1, wherein said pressure plate is threadedly engaged with said connecting plate.

5. The central draft gear for a railway vehicle according to claim 1, wherein at least two mounting seats for mounting lateral stops are further provided on said connecting plate; wherein, at least two the mount pad is the diagonal setting.

6. Central pulling device for railway vehicles, according to claim 1, characterized in that the end face of the rubber pile facing away from the end of the central pin is plane; and/or the rubber pile is formed by vulcanizing metal rubber.

7. A rail vehicle, comprising: a bolster, a frame and a central draft gear connecting the bolster and the frame, wherein the central draft gear is the central draft gear for a railway vehicle of any one of claims 1 to 6.