Large-axle-load railway vehicle bogie

A technology for rail vehicles and bogies, applied in the field of bogies, can solve the problems of not meeting the needs of subway passenger capacity, limited passenger capacity, and not being able to relieve the pressure of urban transportation well, achieving compact structure and reducing bearing strength. , the effect of reasonable internal structure

Active Publication Date: 2014-03-12
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The A-type subway vehicle in the prior art has a designed axle load of only 16t and a limited passenger capacity, which can no longer meet the demand for subway passenger capacity during urban traffic peaks, and cannot well relieve the pressure of urban transportation.

Method used

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  • Large-axle-load railway vehicle bogie
  • Large-axle-load railway vehicle bogie
  • Large-axle-load railway vehicle bogie

Examples

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0024] like figure 1 and figure 2 As shown, the rail vehicle bogie with large axle load is used for subway vehicles. The bogie includes a frame on which two wheelsets, a primary suspension device, a secondary suspension device, a traction device, a foundation braking device, Traction motor 11, gear box 21. The large axle load rail vehicle bogie of this scheme is applied to A-type subway vehicles. The maximum axle load is 17t, the running speed is 80km / h, and the design speed is 90km / h, which can greatly improve the transportation capacity of subway vehicles.

[0025] The frame is an H-shaped structure, including two side beams 1, two cross beams 2 and two auxiliary beams 3. The side beam 1 is a hollow box structure, including a pair of upper and lower cover plates and a pair of vertical plates on both sides formed by welding; the cross beam ...

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Abstract

The invention relates to a large-axle-load railway vehicle bogie which comprises a framework. The framework is composed of side beams, a cross beam, an auxiliary beam, two wheel pairs, a primary suspension device, a secondary suspension, a traction device, a foundation brake device, a traction motor and a gearbox. The primary suspension device is composed of a steel spring and a rotating arm shaft box, and the rotating arm shaft box is connected with the framework through the steel spring. The wheel pairs comprise wheel shafts and wheels fixed at the two ends of each wheel shaft, and the wheel shafts are connected with the rotating arm shaft box. The secondary suspension device comprises an air spring, a side-rolling preventing torsion bar and a height control device which all are arranged on the framework. The height of side beam vertical plates and the outer radius and the thickness of the cross beam are increased, the overall bending strength and the torsional strength of the bogie are greatly improved, the load bearing ability of a motor lifting seat and a gearbox lifting seat is greatly improved, the vertical load bearing ability of the side beams is greatly improved, and 17 tons of axle load can be met.

Description

technical field [0001] The invention relates to a bogie, in particular to a bogie for a rail vehicle with a large axle load. Background technique [0002] The bogie of a subway vehicle is an important part of the entire vehicle, and its performance directly affects the overall safety, stability, and running speed of the vehicle. Metro vehicles are mainly divided into three types: Type A, Type B and Type C. The main difference between them is the width of the car body. Among them, the width of the car body of the type A car is the largest, the maximum passenger capacity, and the corresponding axle load of the bogie is also The larger, but basically below 16t. [0003] The A-type subway vehicle in the prior art has a designed axle load of only 16t and a limited passenger capacity, which can no longer meet the demand for subway passenger capacity during urban traffic peaks, and cannot well relieve urban transportation pressure. Contents of the invention [0004] The main pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/00B61F5/04B61F5/50B61H1/00
Inventor 王晓明马利军于春广张月军张雄飞赵伟董晓红周小江冯永华张会杰赵海芹翟超智史玉杰刘畅张振先
Owner CRRC QINGDAO SIFANG CO LTD
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