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High-speed EMU axle fatigue test bench

A technology for fatigue testing of high-speed EMUs, applied in the field of rail vehicle wheel axle parameter detection test equipment, can solve the problems that train wheel axles cannot be tested for fatigue reliability, achieve good social and economic benefits, improve riding comfort, and compact structure Effect

Inactive Publication Date: 2018-12-18
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the fatigue reliability test of the train wheel shaft cannot be done in actual operation, and the problem of ensuring that the test bench has a compact structure and accurate loading, thus providing a high-speed EMU wheel shaft fatigue test bench

Method used

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  • High-speed EMU axle fatigue test bench
  • High-speed EMU axle fatigue test bench
  • High-speed EMU axle fatigue test bench

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Embodiment Construction

[0060] The present invention is described in detail below in conjunction with accompanying drawing:

[0061] The purpose of the present invention is to provide a high-speed EMU wheel axle fatigue test bench. In actual operation, the train wheel axle cannot be tested for fatigue reliability, and the test bed has a compact structure and accurate loading, so as to meet the requirements of rail vehicle wheel axles in various operating conditions. The need for fatigue reliability parameter testing under certain conditions.

[0062] The high-speed EMU wheel axle fatigue test bench includes eccentrically loaded main shaft assembly 3 and synchronous motor assembly 5, which can accurately simulate the load on the wheel axle in actual work and the vibration when running on the actual line, and truly reproduce the wheel axle during operation. The vibration received, thus ensuring the correctness and authenticity of the parameter test results.

[0063] refer to Figure 1 to Figure 3 , h...

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Abstract

A fatigue test table for wheel axles of a high speed train comprises a wheel axle and fixing box assembly (2), a main shaft supporting seat (4) and an actuator support (6) which are fixed to a rectangular installation platform (1) in sequence.The wheel axle and fixing box assembly (2) comprises a fixing box assembly (8), a test axle (9) and a test wheel (10).One side of an eccentric loading main shaft assembly (3) is installed on the fixing box assembly (8) through the test axle (9) and the test wheel (10), the other side of the eccentric loading main shaft assembly (3) is connected with an actuator assembly (7), and the actuator assembly (7) is supported by the actuator support (6).A synchronous motor assembly (5) is located below the actuator assembly (7) and fixed to the rectangular installation platform (1).The eccentric loading main shaft assembly (3) comprises an eccentric oil cylinder hub assembly (20), a main shaft assembly (21), a transitional column core main shaft assembly (22) and a transitional plunger assembly (23).

Description

technical field [0001] The invention relates to a test device for detecting and testing the axle parameters of rail vehicles, and more specifically, the invention relates to a fatigue test bench for axles of high-speed EMUs. Background technique [0002] At present, my country's EMU technology is developing rapidly. The maximum speed of EMUs in operation has reached 350km / h, and the maximum speed of EMUs under development is close to 500km / h. With the increase of the running speed of the EMU and the intensification of the vehicle axle load, the vibration between the EMU and the track is intensified, the running stability of the EMU is reduced, and the safety and running stability of the EMU have become increasingly prominent. At the same time, with the on-line operation of a large number of EMUs, the maintenance work of EMUs at all levels is also carried out. The maintenance of axles is an important part of the maintenance of EMUs and the key to ensuring the safe and reliabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/02G01N3/36
CPCG01M13/028G01N3/36G01N2203/0005G01N2203/0048G01N2203/0073
Inventor 苏建许影张亨飏陈学渊张益瑞牛治慧林慧英张兰陈秋雨朱丽叶陈雷张雪平丁兆祥庄娇娇
Owner JILIN UNIV