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Power bogie and light rail vehicle

A technology for power bogies and power wheels, applied to bogies, devices for lateral relative movement between underframes and bogies, operating mechanisms for railway vehicle brakes, etc., can solve the problem of increasing the natural frequency of bogie nodding and ups and downs , braking device, bogie side beam and end beam joints are prone to vibration fatigue and other problems, so as to reduce the natural frequency of nodding and ups and downs, improve stability and safety, and improve the passing capacity

Active Publication Date: 2015-12-16
CRRC TANGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing bogies usually include: a frame and a foundation braking device, wherein the frame includes two side beams, and the foundation braking device is usually symmetrically installed on the end beams at the ends of the side beams, so that not only increases The natural frequency of bogie nodding and ups and downs is reduced, and the brake device, bogie side beam and end beam joints are prone to vibration fatigue

Method used

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  • Power bogie and light rail vehicle
  • Power bogie and light rail vehicle
  • Power bogie and light rail vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It is the first structural diagram of the first embodiment of the power bogie of the present invention; figure 2 It is a schematic diagram of the second structure of the first embodiment of the power bogie of the present invention; please refer to Figure 1-2 , The embodiment of the present invention provides a power bogie, including: a power wheel set 1, a frame 2, a bolster 3, and a basic braking device 4.

[0034] Specifically, the frame includes two parallel side beams 21 and a cross beam 22 connecting the two side beams 21. The cross beam 22 is plate-shaped. The plate-shaped cross beam 22 can avoid stress concentration during the butting process with the side beams 21, thereby The structural strength of the frame 2 is ensured; among them, the side beam 21 and the cross beam 22 are single-box panel welded structures, so that the cross beam 22 and the side beam 21 have long welds at the upper and lower cover plates, thereby ensuring the welding performance The ...

Embodiment 2

[0037] This embodiment further supplements the power bogie of the above embodiment.

[0038] image 3 It is a schematic diagram of the structure of the second embodiment of the power bogie of the present invention; please refer to image 3 On the basis of the first embodiment, further, the brake hanger 5 may include: a welding section 51, an installation section 52, and a transition section 53 connecting the welding section 51 and the installation section 52.

[0039] Specifically, the transition section 53 is arc-shaped, the installation section 52 is plate-shaped, the installation section 52 is provided with at least two fastener installation holes 54 for installing the basic brake device 4, the installation section 52 and the transition section 53 are A web 55 is provided. The web 55 is arc-shaped, and the convex part of the arc is upward. Preferably, the thickness of the web 55 reaches the maximum at the connection between the mounting section 52 and the welding section 51 to im...

Embodiment 3

[0043] This embodiment further supplements the power bogie of the above embodiment.

[0044] Figure 4 It is the first structural diagram of the third embodiment of the power bogie of the present invention; Figure 5 It is a schematic diagram of the second structure of the third embodiment of the power bogie of the present invention; Image 6 It is the third structural diagram of the third embodiment of the power bogie of the present invention; please refer to Figure 4-5 On the basis of Embodiment 1 and / or Embodiment 2, the power bogie may also include: a primary suspension device, the primary suspension device includes a primary spring 6, and the primary spring 6 is provided on the power wheelset 1 and the frame 2. In between, the arrangement of the primary spring 6 can reduce the wear between the wheel and the rail surface, and the arrangement of the primary spring 6 can also reduce the swing and rolling angle of the bogie, and can reduce the running noise. In addition, since ...

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Abstract

The invention provides a power bogie and a light rail vehicle, and relates to the technical field of vehicle manufacturing. The power bogie comprises power wheel pairs, a framework, a sleeper beam and basic brake devices. The framework comprises two parallel side beams and a cross beam connected with the side beams. The cross beam is in a plate shape. The two ends of the power wheel pairs are connected with the two side beams respectively. A center hole is formed in the middle of the cross beam. The middle of the sleeper beam is connected with the cross beam through a center pin. The cross beam is provided with brake hanging bases. The basic brake devices are arranged on the brake hanging bases. The basic brake devices are arranged on the cross beam, so that the self-frequency of nodding and sinking or floating of the bogie is reduced, and the overall fatigue strength of the bogie is guaranteed. Accordingly, the stability and safety of the vehicle are improved while the vehicle can run at a high speed.

Description

Technical field [0001] The invention relates to the technical field of vehicle manufacturing, in particular to a power bogie and a light rail vehicle. Background technique [0002] As the pace of urbanization in my country accelerates, people between cities travel more frequently, and fast and convenient light rail vehicles have become the most convenient means of transportation. [0003] In the prior art, the front and rear carriages of light rail vehicles are usually connected by bogies, which can not only reduce the use of couplers, but also reduce the chance of noise. Existing bogies usually include: a frame and a basic braking device. The frame includes two side beams. The basic braking device is usually installed symmetrically on the end beams at the ends of the side beams. In addition, the bogie nodding and ups and downs have their own frequencies, which also makes the joints of the braking device, the side beams and the end beams of the bogie easy to produce vibration fati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F3/12B61F5/52B61F5/12B61H13/34
Inventor 刘洋张隶新莘海萍张冠兰李春来李增楼
Owner CRRC TANGSHAN CO LTD
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