CN216969669U

CN216969669U - Bogie and rail vehicle

Info

Publication number: CN216969669U
Application number: CN202123406696.2U
Authority: CN
Inventors: 陆圣青; 谭志成; 柴盈盈; 乔岩; 康飞
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-15
Anticipated expiration: 2031-12-31

Abstract

The application discloses bogie for rail vehicle includes: the vehicle comprises an axle, two traveling wheels arranged on the axle, four air spring cantilevers and four air springs, wherein one end of the first air spring cantilever is fixed on the axle, the other end of the first air spring cantilever extends to the front of the first traveling wheel, and the other end of the first air spring cantilever is connected with a vehicle body through the first air spring; one end of a second air spring cantilever is fixed on the axle, the other end of the second air spring cantilever extends to the front of the second traveling wheel, and the other end of the second air spring cantilever is connected with the vehicle body through a second air spring; one end of a third air spring cantilever is fixed on the axle, the other end of the third air spring cantilever extends to the rear of the first traveling wheel, and the other end of the third air spring cantilever is connected with the vehicle body through a third air spring; one end of a fourth air spring cantilever is fixed on the axle, the other end of the fourth air spring cantilever extends to the rear of the second walking wheel, and the other end of the fourth air spring cantilever is connected with the vehicle body through a fourth air spring. Not only avoids the traveling wheels, but also increases the span between the air springs.

Description

Bogie and rail vehicle

Technical Field

The utility model relates to the field of rail transit, in particular to a bogie and a rail vehicle.

Background

Some existing suspension devices for railway vehicles generally include two air springs, wherein the two air springs are both arranged on an axle and located in the middle of a bogie, when the railway vehicle turns, a vehicle body tilts, the air springs also tilt, the distance between the two air springs is reduced, the anti-rolling performance of the two air springs is reduced, the stability of the bogie is poor, and the air springs may collide with running wheels under the condition of tilting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bogie, which improves the anti-rolling performance, has good stability and avoids the conflict with running wheels under the condition of side rolling.

To achieve the above object, the present invention provides a bogie for a railway vehicle, comprising: the vehicle comprises an axle, two walking wheels arranged on the axle, four air spring cantilevers and four air springs, wherein one end of the first air spring cantilever is fixed on the axle, the other end of the first air spring cantilever extends to the front of the first walking wheel, and the other end of the first air spring cantilever is connected with a vehicle body through the first air springs; one end of a second air spring cantilever is fixed on the axle, the other end of the second air spring cantilever extends to the front of a second travelling wheel, and the other end of the second air spring cantilever is connected with the vehicle body through a second air spring; one end of a third air spring cantilever is fixed on the axle, the other end of the third air spring cantilever extends to the rear of the first walking wheel, and the other end of the third air spring cantilever is connected with the vehicle body through a third air spring; one end of a fourth air spring cantilever is fixed on the axle, the other end of the fourth air spring cantilever extends to the rear of the second walking wheel, and the other end of the fourth air spring cantilever is connected with the vehicle body through a fourth air spring.

According to the bogie, the air springs are arranged at the front and the rear of the traveling wheels, so that the anti-rolling performance of the bogie is improved, the stability of the bogie is good, and the bogie is prevented from colliding with the traveling wheels under the condition of side inclination.

Further, the four air springs are arranged at four vertices of a rectangle.

Further, the air spring cantilever is L-shaped.

Further, the automobile chassis assembly further comprises a stopping device, wherein the stopping device comprises a transverse stopping plate, a vertical stopping plate, a transverse stopping seat and a vertical stopping seat, the vertical stopping seat is connected with the automobile body, the vertical stopping plate is arranged below the vertical stopping seat, the transverse stopping plate is in contact with the side face of the vertical stopping seat, the transverse stopping plate is arranged on the transverse stopping seat, and the transverse stopping seat is arranged on an axle.

Furthermore, the number of the stop devices is two, and the two stop devices are respectively arranged at the positions, corresponding to the two walking wheels, on the axle.

Further, the transverse shock absorber is further included, one end of the transverse shock absorber is connected with the axle, and the other end of the transverse shock absorber is connected with the stopping device.

Further, the number of the transverse shock absorbers is two, the two transverse shock absorbers are arranged in a staggered mode in the front-back mode and are arranged in a central symmetry mode relative to the axle center.

And one end of the vertical shock absorber is connected with the air spring cantilever, and the other end of the vertical shock absorber is connected with the vehicle body.

Furthermore, the number of the vertical shock absorbers is two, and the two vertical shock absorbers are respectively arranged on the first air spring cantilever and the third air spring cantilever or respectively arranged on the second air spring cantilever and the fourth air spring cantilever.

Furthermore, the number of the vertical shock absorbers is four, and the vertical shock absorbers are respectively arranged on the four air spring cantilevers.

The utility model further provides a railway vehicle which comprises the bogie.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an isometric view of one embodiment of a truck of the present invention;

FIG. 2 is a front view of one embodiment of the truck of the present invention;

FIG. 3 is a left side view of one embodiment of the truck of the present invention;

FIG. 4 is a bottom view of one embodiment of the truck of the present invention;

FIG. 5 is a top view of one embodiment of the truck of the present invention;

FIG. 6 is an isometric view of an axle air spring cantilever of an embodiment of the truck of the present invention;

FIG. 7 is an enlarged view of the air spring suspension of one embodiment of the truck of the present invention;

fig. 8 is a schematic view of a stop device of an embodiment of the truck of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This 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 the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" are used in a broad sense, and may be, for example, mechanically or electrically connected, or may be two elements communicating with each other, directly or indirectly through an intermediate, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

These and other aspects of embodiments of the utility model will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the utility model have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the utility model may be practiced, but it is understood that the scope of the embodiments of the utility model is not limited correspondingly. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

For convenience of description, the forward direction of the rail vehicle is defined as front, the reverse direction is defined as rear, the left side of the forward direction of the rail vehicle is defined as left, and the right side of the forward direction of the rail vehicle is defined as right.

As shown in fig. 1-6, the present invention provides a bogie for a rail vehicle, which comprises a guide wheel 1, a traveling wheel 10 and an axle 8, and comprises four air spring cantilevers and four air springs, wherein one end of a first air spring cantilever 131 is fixed on the axle, the other end of the first air spring cantilever 131 extends to the front of a first traveling wheel 101, and the other end of the first air spring cantilever 131 is connected with a vehicle body through the first air spring 141; one end of a second air spring cantilever 132 is fixed on the axle, the other end of the second air spring cantilever 132 extends to the front of the second walking wheel 102, and the other end of the second air spring cantilever 132 is connected with the vehicle body through a second air spring 142; one end of a third air spring cantilever 133 is fixed on the axle, the other end of the third air spring cantilever 133 extends to the rear of the first walking wheel 101, and the other end of the third air spring cantilever 133 is connected with the vehicle body through a third air spring 143; one end of a fourth air spring cantilever 134 is fixed on the axle, the other end extends to the rear of the second walking wheel 102, and the other end of the fourth air spring cantilever 134 is connected with the vehicle body through a fourth air spring 144. The other end of each air spring is also connected with an air source system of the railway vehicle. The air spring has transverse rigidity and vertical rigidity, and can meet the requirements of vertical movement and transverse movement of a vehicle in normal running. The four air springs are arranged at four vertices of a rectangle. The air spring cantilever is L-shaped.

As shown in fig. 1 to 8, an embodiment of the present invention further includes a stop device, where the stop device includes a lateral stop plate 700, a vertical stop plate 800, a lateral stop seat 22, and a vertical stop seat 900, the vertical stop seat 900 is connected to a vehicle body, the vertical stop plate 800 is disposed below the vertical stop seat 800, the lateral stop plate 700 contacts with a side surface of the vertical stop seat 900, the lateral stop plate 700 is disposed on the lateral stop seat 22, and the lateral stop seat 22 is disposed on a vehicle axle. The stop stops play a temporary limiting role when the air springs 14 are deflated, and the vehicle can be guaranteed to run to a station to evacuate passengers and run to a garage for maintenance when the vehicle is in fault. Upon loss of air to air spring 14, vertical stop plate 800 moves downward and no longer upon contact with axle 8.

Further, two of the stopping devices may be provided, respectively at positions on the axle 8 corresponding to the two running wheels.

In an embodiment of the present invention, the present invention further comprises a transverse shock absorber 19, wherein one end of the transverse shock absorber 19 is connected to the axle 8, and the other end is connected to the vertical stop seat 900 in the stop device. Further, there are two transverse dampers 19, and the two transverse dampers 19 are staggered front and back and arranged in a central symmetry with respect to the center of the axle 8.

In one embodiment of the utility model, the vehicle further comprises a vertical shock absorber 15, wherein one end of the vertical shock absorber 15 is connected with the air spring cantilever 13, and the other end of the vertical shock absorber 15 is connected with the vehicle body. In one embodiment of an implementation of the present invention, two vertical shock absorbers 15 are included, respectively disposed on the first and third air-

spring cantilevers

131 and 133; in another embodiment of an embodiment of the present invention, two vertical shock absorbers 15 are included and are disposed on the second and fourth

air spring cantilevers

132 and 134, respectively. In yet another embodiment of an embodiment of the present invention, four vertical shock absorbers 15 are included, each being disposed on four air spring cantilevers. That is, in one embodiment of the present invention, the vertical shock absorbers are arranged in a central symmetry with respect to the center of the axle 8.

When the vehicle runs in a turning mode, the guide wheel 1 is in contact with the inner side of the track beam, the guide wheel receives acting force from the track beam, the acting force borne by the guide wheel 1 is transmitted to the steering knuckle forks 9 at the two ends of the axle 8 through the guide cantilever 3, the steering drag link 4, the steering drag link 5, the first steering straight arm 6 and the second steering straight arm 7, the steering knuckle forks 9 transmit the acting force to the walking wheel 10 to drive the walking wheel 10 to deflect, and then the whole vehicle is driven to turn. Turn to drag link 4 and tie rod 5 and install respectively at 8 both ends of axle, and turn to drag link 4 and be from last installation down, turn to drag link 5 for follow supreme installation down, can match like this better and turn to drag link 4 mount pads and dodge the motor.

According to the bogie disclosed by the embodiment of the utility model, the two upper straight thrust rods 12 and the two lower straight thrust rods 11 form a traction mechanism of a vehicle, the traction mechanism plays a role in transmitting traction force and braking force, the lower straight thrust rods 11 are directly connected with an axle through bolts, the upper straight thrust rods 12 are connected with the axle housing 8 through the upper straight thrust rod mounting seats 22 due to the limited height of the axle housing 8, and the other end of the traction mechanism is connected with a vehicle body through bolts.

The present invention further comprises a stabilizer bar 21, wherein two ends of the stabilizer bar 21 are respectively fixed at two ends of the vehicle axle 8, and the stabilizer bar 21 is used for inhibiting the rolling motion when the vehicle runs.

The air spring cantilever 13 is provided with an air spring mounting hole 100 for mounting an air spring 14; the vertical shock absorbers or the height adjusting rod mounting holes 200 are arranged, after the mounting position of the vertical shock absorber 15 is confirmed, the height adjusting rods of the air source system are mounted in the other two vertical shock absorbers or the height adjusting rod mounting holes 200 of each bogie, and the air inflation and deflation of the air springs during the vertical motion of the vehicle are met; a stabilizer bar mounting hole 300 for mounting a stabilizer bar mounting seat 400 and further mounting a stabilizer bar 21; a mounting hole 600 is reserved, and a corresponding snow removing mechanism or an obstacle detection device can be mounted according to the requirements of related lines. Air spring suspension 13 is mounted on axle 8 by bolts 500.

According to the bogie disclosed by the utility model, the air springs are arranged at the front and the rear of the traveling wheels, so that the traveling wheels are avoided, the span between the air springs is increased, the bearing capacity of a railway vehicle can be improved, the running stability of the vehicle is improved, and the corresponding side rolling motion is inhibited.

The utility model further provides a railway vehicle which comprises the bogie.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bogie for a rail vehicle, comprising: the vehicle comprises an axle, two walking wheels arranged on the axle, four air spring cantilevers and four air springs, wherein one end of the first air spring cantilever is fixed on the axle, the other end of the first air spring cantilever extends to the front of the first walking wheel, and the other end of the first air spring cantilever is connected with a vehicle body through the first air springs; one end of a second air spring cantilever is fixed on the axle, the other end of the second air spring cantilever extends to the front of a second travelling wheel, and the other end of the second air spring cantilever is connected with the vehicle body through a second air spring; one end of a third air spring cantilever is fixed on the axle, the other end of the third air spring cantilever extends to the rear of the first traveling wheel, and the other end of the third air spring cantilever is connected with the vehicle body through a third air spring; one end of a fourth air spring cantilever is fixed on the axle, the other end of the fourth air spring cantilever extends to the rear of the second walking wheel, and the other end of the fourth air spring cantilever is connected with the vehicle body through a fourth air spring.

2. The bogie of claim 1, wherein the four air springs are arranged at four vertices of a rectangle.

3. The bogie as recited in claim 1, wherein the air spring cantilever is L-shaped.

4. The bogie according to claim 1, further comprising a stop device, wherein the stop device comprises a transverse stop plate, a vertical stop plate, a transverse stop seat and a vertical stop seat, the vertical stop seat is connected with a vehicle body, the vertical stop plate is arranged below the vertical stop seat, the transverse stop plate is in contact with the side face of the vertical stop seat, the transverse stop plate is arranged on the transverse stop seat, and the transverse stop seat is arranged on a vehicle axle.

5. A bogie as claimed in claim 4 in which there are two of said stop means provided on the axle at positions corresponding to the two running wheels.

6. The truck of claim 4 further comprising a transverse shock absorber connected at one end to the axle and at the other end to the stop means.

7. The bogie according to claim 6, wherein the number of the transverse dampers is two, and the two transverse dampers are staggered in tandem and arranged in a central symmetry with respect to the axle center.

8. The bogie of claim 1, further comprising a vertical shock absorber having one end connected to the air spring suspension and the other end connected to the vehicle body.

9. The truck of claim 8 wherein there are two vertical shock absorbers on the first and third air-spring booms, respectively, or on the second and fourth air-spring booms, respectively.

10. The truck of claim 8 wherein the vertical shock absorbers are four and are disposed on four air spring cantilevers.

11. A rail vehicle, characterized in that it comprises a bogie according to any one of claims 1-10.