High-speed train axle box bearing gantry type counter-force frame two-dimensional excitation loading test bed

A technology for high-speed EMUs and axlebox bearings, which is applied in the field of rail vehicle drive train parameter detection and test platforms, and can solve problems such as failure of axlebox bearing reliability tests

Inactive Publication Date: 2014-03-12
JILIN UNIV
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Problems solved by technology

[0004] The present invention provides a two-dimensional excitation and loading test bench of gantry-type reaction force frame for axle box bearings of high-speed EMUs, aiming to solve the problem that existing test benches cannot carry out reliability tests of axle box bearings under actual operating conditions of trains

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  • High-speed train axle box bearing gantry type counter-force frame two-dimensional excitation loading test bed
  • High-speed train axle box bearing gantry type counter-force frame two-dimensional excitation loading test bed
  • High-speed train axle box bearing gantry type counter-force frame two-dimensional excitation loading test bed

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Embodiment Construction

[0071] The present invention is described in detail below in conjunction with accompanying drawing:

[0072] The purpose of the present invention is to provide a high-speed EMU axle box bearing gantry type reaction force frame two-dimensional excitation loading test bench, to solve the problem that it is difficult to carry out the reliability test of the axle box bearing in the actual operation of the existing train, so as to meet the requirements of the rail vehicle axle. The need for reliability parameter detection of box bearings under various operating conditions. The vertical and transverse excitation devices of the axle box bearing included in the test bench can accurately simulate the radial and axial loads on the axle box bearing in actual working conditions and the vibration of the high-speed EMU when it is running on the actual line. It truly reproduces the vibrations suffered by the drive train of rail vehicles during operation, thereby ensuring the correctness and ...

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Abstract

The invention discloses a high-speed train axle box bearing gantry type counter-force frame two-dimensional excitation loading test bed and aims to solve the problem that axle box bearing reliability tests cannot be performed under the actual operation working condition of trains in the prior art. The test bed comprises a axle box bearing vertical-transverse excitation device, a torque detecting and testing device and a hydraulic control system. The axle box bearing vertical-transverse excitation device comprises a rectangular bearing platform, an actuator counter-force frame, a first axle box bearing vertical force applying device, a second axle box bearing vertical force applying device, an axle box bearing transverse force applying device and an axle box bearing testing device. The axle box bearing testing device is fixed on the upper surface of the rectangular bearing platform. The first axle box bearing vertical force applying device, the second axle box bearing vertical force applying device and the axle box bearing transverse force applying device are sleeved on the axle box bearing testing device. In addition, the axle box bearing transverse force applying device is fixed on the upper surface of the rectangular bearing platform at the same time.

Description

technical field [0001] The invention relates to a test platform for detecting parameters of a transmission system of a rail vehicle, in particular to a two-dimensional excitation and loading test platform for a gantry-type reaction force frame of an axle box bearing of a high-speed train set. Background technique [0002] At present, my country's EMU technology is developing rapidly. The maximum speed of the EMUs in operation has reached 350km / h, and the maximum speed of the newly developed EMUs is close to 500km / h. With the increase of train speed and the increase of vehicle axle load, the vibration between the wheel and the track is intensified, the running stability of the vehicle is reduced, and the safety and ride comfort of the train are becoming more and more prominent. At the same time, with the on-line operation of a large number of high-speed EMUs, the maintenance work of EMUs at all levels is also carried out. Among them, the maintenance of axle box bearings is an...

Claims

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Application Information

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IPC IPC(8): G01M13/04
Inventor 苏建张益瑞张兰杜志豪林惠英王秀刚宋建杨晓敏王启明杨聚芬
Owner JILIN UNIV
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