High-speed EMU axle box bearing gantry-type reaction frame two-dimensional excitation loading test bench

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...

AI Technical Summary

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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