Bogie, rail vehicle and rail transit system
By using a rotatable rocker on the bogie to install the walking wheel, the problem of inconsistent height of the wheel walking surface during bumpy sections is solved, and the vehicle can drive smoothly on bumpy roads and passenger comfort experience is achieved.
Patent Information
- Application Number
- CN202420396336.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-02-28
AI Technical Summary
When the bogie of existing rail vehicles is bumpy, the height of the road surface of the left and right wheels is inconsistent, resulting in the movement of the left and right wheels on the axle affecting each other, affecting the smoothness of driving, and passengers will feel shaking.
A bogie is designed to install the walking wheel using a rocker arm that can rotate opposite to the axle. When one side of the walking wheel encounters bumps, the rocker arm rotates to prevent large up and down movement of the axle, and weaken the coupling effect of the left and right running wheels.
Through the rotation of the rocker arm, the side rolling of the bogie is reduced, the adaptability to the road surface is improved, the vehicle is more stable when passing through, and the passenger experience is improved.
Smart Images
Figure CN222591480U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of bogies, and in particular, to a bogie, a rail vehicle and a rail transit system. Background Art
[0002] At present, the bogies of rail vehicles are mainly connected between the running wheels on the left and right sides through axles. When the vehicle encounters a bumpy road during driving, the road surface on which the left wheel is running and the road surface on which the right wheel is running usually have a height inconsistency. At this time, the movement of the left and right wheels on the same axle will affect each other, which is not conducive to driving smoothness. Passengers riding on the vehicle will feel shaking and have a poor experience. Utility Model Content
[0003] An object of the present disclosure is to provide a bogie, a rail vehicle and a rail transit system to at least partially solve the problems existing in the related art.
[0004] In order to achieve the above-mentioned purpose, the present invention provides a bogie, including: an axle, used to connect to a car body; a rocker arm, rotatably connected to the axle, the rocker arm having a first end and a second end distributed on the front and rear sides of the axle, the first end being used to connect to the front running wheel, and the second end being used to connect to the rear running wheel, so that the front running wheel and the rear running wheel can rotate around the axle.
[0005] Optionally, a steering yoke is connected to the left and right ends of the axle, and the steering yoke and the axle can rotate relative to each other around a first axis. The rocker arm is connected to the steering yoke, and the rocker arm and the steering yoke can rotate relative to each other around a second axis, wherein the extension direction of the first axis is the vertical direction, and the extension direction of the second axis is the lateral direction of the vehicle body.
[0006] Optionally, the bogie includes four steering arms for connecting to four running wheels in a one-to-one correspondence, each steering arm is used to connect to a guide wheel, and a steering tie rod is connected between two laterally opposite steering arms.
[0007] Optionally, both left and right ends of the axle are connected to the rocker arms, and the first end and the second end of each rocker arm are connected to the steering arm.
[0008] Optionally, the steering arm is configured to extend toward between the two rocker arms and gradually extend downward.
[0009] Optionally, the bogie includes a lateral shock absorber and a vertical shock absorber, both of which are connected between the axle and the car body, and the lateral shock absorber is used to attenuate the lateral vibration of the car body, and the vertical shock absorber is used to attenuate the vertical vibration of the car body.
[0010] Optionally, the bogie comprises a lateral stop for limiting the compression limit of the lateral shock absorber, and a vertical stop for limiting the compression limit of the vertical shock absorber.
[0011] Optionally, the bogie comprises an air spring connected between the axle and the vehicle body.
[0012] Optionally, the bogie comprises a traction rod connected between the axle and the vehicle body.
[0013] According to a second aspect of an embodiment of the present disclosure, there is provided a rail vehicle, comprising a vehicle body and a bogie provided by the present disclosure.
[0014] According to a third aspect of an embodiment of the present disclosure, there is provided a rail transit system, comprising a rail beam and a rail vehicle provided by the present disclosure.
[0015] Through the above technical solution, the running wheels are installed using a rocker arm that can rotate relative to the axle. When the running wheel on one side encounters bumpy road conditions, the up and down movement of the running wheel will drive the rocker arm to rotate, thereby avoiding the movement of the running wheel on the other side caused by the large up and down movement of the axle, weakening the coupling effect of the left and right running wheels, avoiding excessive side rolling of the entire bogie, making the entire bogie better adaptable to the road surface and making the vehicle pass more smoothly.
[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0018] Figure 1 The figure is a front view of a rail vehicle according to an exemplary embodiment of the present disclosure.
[0019] Figure 2 is a schematic diagram of a bogie provided in accordance with an exemplary embodiment of the present disclosure.
[0020] Figure 3 is a top view of a bogie provided in accordance with an exemplary embodiment of the present disclosure.
[0021] Figure 4 It is a schematic diagram of a rail vehicle running on a flat road provided by an exemplary embodiment of the present disclosure.
[0022] Figure 5 It is a schematic diagram of a rail vehicle running on an undulating road surface provided by an exemplary embodiment of the present disclosure.
[0023] Figure 6 It is a partial structural diagram of a bogie provided in an exemplary embodiment of the present disclosure.
[0024] Description of Reference Numerals
[0025] 10-vehicle body, 20-traveling wheel, 30-guide wheel, 100-axle, 200-rocker arm, 201-first end, 202-second end, 210-steering yoke, 221-lateral shock absorber, 2211-lateral stop, 222-vertical shock absorber, 2221-vertical stop, 223-air spring, 300-steering arm, 310-steering tie rod, 311-mounting seat, 380-stabilizer bar, 400-traction bar. DETAILED DESCRIPTION
[0026] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0027] In the present disclosure, unless otherwise stated, directional words such as "up, down, horizontal, vertical" are defined according to the direction of use of the vehicle, "lateral" refers to the left and right direction of the vehicle, "vertical" refers to the up and down direction of the vehicle, "left and right" refer to the direction facing the front of the vehicle, and are defined according to the front view of the vehicle. The specific directions of "up, down, left, right" can be referred to in detail. Figure 1 The “inside” and “outside” are defined according to the outline of the corresponding parts. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0028] Reference Figures 1 to 3 The present disclosure provides a bogie, including an axle 100 and a rocker arm 200. The axle 100 is used to connect with the vehicle body 10, for example, it can be directly connected with the vehicle body 10, or it can be indirectly connected with the vehicle body 10, for example, it is connected to the bottom of the vehicle body 10 through an air spring 223 described later; the rocker arm 200 is rotatably connected to the axle 100. Figure 3 The rocker arm 200 has a first end 201 and a second end 202 distributed at the front and rear sides of the axle 100. The first end 201 is used to connect the front running wheel 20, and the second end 202 is used to connect the rear running wheel 20. That is, the front running wheel 20 and the rear running wheel 20 can be arranged at the front and rear sides of the end of the axle 100 so that the front running wheel 20 and the rear running wheel 20 can rotate around the axle 100. Figure 4 and Figure 5When the vehicle is traveling on a relatively flat road, the front and rear running wheels 20 are in a stable state, and the rocker arm 200 will not rotate; when the road surface on one side is uneven, the front and rear running wheels 20 on this side will pass through the unevenness in turn, and when the running wheel 20 is lifted or lowered accordingly, the rocker arm 200 will rotate relative to the axle 100, thereby avoiding a large up and down movement of the axle so as not to change the movement of the running wheel 20 on the other side.
[0029] Through the above technical solution, the running wheel is installed by using the rocker arm 200 that can rotate relative to the axle 100. When the running wheel 20 on one side encounters bumpy road conditions, the up and down movement of the running wheel 20 will drive the rocker arm 200 to rotate, thereby preventing the axle 100 from moving up and down significantly and causing the movement of the running wheel 20 on the other side, weakening the coupling effect of the left and right running wheels 20, and preventing the entire bogie from producing excessive side roll, so that the entire bogie is better adaptable to the road surface and the vehicle passes more smoothly.
[0030] Reference Figure 2 , Figure 3 and Figure 6 The axle 100 may be connected to a steering yoke 210, and the steering yoke 210 and the axle 100 may rotate relative to each other around a first axis. The rocker arm 200 is connected to the steering yoke 210, and the rocker arm 200 and the steering yoke 210 may rotate relative to each other around a second axis, wherein the first axis extends in a vertical direction, and the second axis extends in a lateral direction of the vehicle body 10. Figure 3 The steering yoke 210 and the axle 100 can move around an axis perpendicular to the drawing, and the rocker arm 200 and the steering yoke 210 can move around an axis extending left and right. By setting the steering yoke 210, the rocker arm 200 and the axle 100 can be rotated in a preset direction, ensuring the steering effect while weakening the coupling effect of the running wheels 20 on the left and right sides. The steering yoke 210 can be constructed as Figure 6 The clamping shape shown is one in which the axle 100 can be clamped and the rocker arm 200 can be articulated on its back side.
[0031] In the disclosed embodiment, in order to establish a steering relationship between the four running wheels 20, the bogie may include four steering arms 300 for correspondingly connecting to the four running wheels 20, each steering arm 300 is used to connect a guide wheel 30, and a steering tie rod 310 is connected between two laterally opposite steering arms 300 to connect the left and right guide wheels 30, so as to achieve the same steering angle on the left and right sides. Figure 6A mounting seat 311 may be formed on one of the two steering arms 300 on the same side for mounting the steering rod 310, and a mounting seat may also be formed on the steering arm 300 on the other side laterally opposite to the steering arm 300 for mounting the steering rod, so that the steering rod 310 may be laterally connected between the two opposite steering arms 300.
[0032] Among them, the left and right ends of the axle 100 can be connected to the above-mentioned rocker arms 200, and the first end 201 and the second end 202 of each rocker arm 200 can be connected to the steering arm 300 respectively. In this way, the connection between the running wheel 20 and the guide wheel 30 can be established through the rocker arm 200, and the overall structure of the bogie is simpler. In the embodiment of the present disclosure, the running wheel 20 is connected to one side of the rocker arm 200, and the steering arm 300 can extend to the side of the rocker arm 200 that is away from the running wheel 20, so that the two avoid each other and do not interfere with each other. In other embodiments, the steering arm 300 can also be directly or indirectly connected to the running wheel 20 through other structures.
[0033] Reference Figure 1 , the steering arm 300 can be configured to extend toward between the two rocker arms 200 and gradually extend downward. Figure 1 In the embodiment, the steering arm 300 extends from the left and right sides to the middle, and can gradually move away from the running wheel 20, leaving installation space for the guide wheel 30 to avoid interference with the running wheel 20. In addition, the steering arm 300 gradually extends downward in the process of extending from the two sides to the middle, and can be staggered with the upper axle 100 and other structures to avoid mutual interference and facilitate installation.
[0034] According to one embodiment of the present disclosure, referring to Figures 1 to 3 The bogie may include a lateral shock absorber 221 and a vertical shock absorber 222, which may be connected between the axle 100 and the vehicle body 10 to attenuate vibration in the lateral and longitudinal directions, respectively. Figures 1 to 3 A first shock absorber mounting frame extending downward may be installed on the vehicle body 10, and a second shock absorber mounting frame extending toward the first shock absorber mounting frame of the vehicle body 10 along the front-rear direction of the vehicle may be installed on the axle 100. The lateral shock absorber 221 may be connected between the two shock absorber mounting frames, so that the lateral shock absorber 221 may have a lateral extension component, that is, Figure 2 As shown in , the lateral shock absorber 221 is substantially extended laterally. Similarly, the vertical shock absorber 221 can be substantially extended vertically, and is directly connected to the bottom of the vehicle body 10.
[0035] Furthermore, the bogie may include a lateral stopper 2211 for limiting the compression limit of the lateral shock absorber 221, and a vertical stopper 2221 for limiting the compression limit of the vertical shock absorber 222. The lateral stopper 2211 and the vertical stopper 2221 can prevent the shock absorber from having excessive pressure, which may cause the components that should be spaced laterally and the components that should be spaced longitudinally to have too small a spacing and thus cause interference.
[0036] In the disclosed embodiment, the bogie may include an air spring 223 connected between the axle 100 and the vehicle body 10. The air spring 223 can buffer vibrations, improve the comfort of passengers, and the running stability of the vehicle. The air spring 223 can be applied to the bogie together with the above-mentioned shock absorber to ensure the vibration reduction effect on the entire bogie, which is conducive to further improving the stability.
[0037] Reference Figure 3 The bogie may include a traction rod 400 connected between the axle 100 and the vehicle body 10 to provide traction for the vehicle body 10. There may be two traction rods 400, which are arranged along the forward direction of the vehicle, and the two traction rods 400 may be symmetrically arranged to ensure uniform traction.
[0038] According to a second aspect of the embodiment of the present disclosure, a rail vehicle is provided, comprising a vehicle body 10 and the above-mentioned bogie, and having all the beneficial effects of the above-mentioned bogie, which will not be repeated here. The rail vehicle may include multiple bogies, and one or more of the multiple bogies may be set as the bogie in the embodiment of this disclosure.
[0039] According to a third aspect of the embodiment of the present disclosure, a rail transit system is provided, referring to Figure 1 The rail transit system may include a rail beam and the above-mentioned rail vehicle, and has all the beneficial effects of the above-mentioned rail vehicle, which will not be repeated here.
[0040] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0042] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A bogie, characterized in that: include: Axle, used to connect with the vehicle body; A rocker arm is rotatably connected to the axle, and has a first end and a second end distributed on the front and rear sides of the axle, the first end is used to connect the front running wheel, and the second end is used to connect the rear running wheel, so that the front running wheel and the rear running wheel can rotate around the axle.
2. The bogie according to claim 1, characterized in that: The axle is connected to a steering yoke, and the steering yoke and the axle can rotate relative to each other around a first axis. The rocker arm is connected to the steering yoke, and the rocker arm and the steering yoke can rotate relative to each other around a second axis, wherein the extension direction of the first axis is a vertical direction, and the extension direction of the second axis is a lateral direction of the vehicle body.
3. The bogie according to claim 1, characterized in that: The bogie comprises four steering arms for being connected to four running wheels in a one-to-one correspondence, each of the steering arms is used to be connected to a guide wheel, and a steering tie rod is connected between two laterally opposite steering arms.
4. The bogie according to claim 3, characterized in that: The left and right ends of the axle are both connected with the rocker arms, and the first end and the second end of each rocker arm are both connected with the steering arm.
5. The bogie according to claim 4, characterized in that: The steering arm is configured to extend toward between the two rocker arms and gradually extend downward.
6. The bogie according to claim 1, characterized in that: The bogie includes a lateral shock absorber and a vertical shock absorber, both of which are connected between the axle and the car body, and the lateral shock absorber is used to attenuate the lateral vibration of the car body, and the vertical shock absorber is used to attenuate the vertical vibration of the car body.
7. The bogie according to claim 6, characterized in that The bogie comprises a lateral stop for limiting the compression limit of the lateral shock absorber, and a vertical stop for limiting the compression limit of the vertical shock absorber.
8. The bogie according to claim 1, characterized in that: The bogie includes an air spring connected between the axle and the vehicle body.
9. The bogie according to claim 1, characterized in that: The bogie includes a traction bar connected between the axle and the vehicle body.
10. A rail vehicle, characterized in that: The vehicle comprises a vehicle body and a bogie according to any one of claims 1 to 9.
11. A rail transit system, characterized in that: The invention comprises a track beam and a rail vehicle according to claim 10.