Six-degree-of-freedom dynamic simulation loading test bench for drive train axle box bearings of EMUs

Abstract

The invention discloses an electric multiple unit transmission system axle box bearing six-degree-of-freedom dynamic simulation load test platform and aims to overcome a problem that an electric multiple unit transmission system axle box bearing reliability test can be not carried out in a practical operation. The test platform comprises a power transmission torque detection testing device, a T type beam assembly body and a test piece assembly body. The T type beam assembly body is installed in the middle of a ground base. The power transmission torque detection testing device is installed at the left side of the T type beam assembly body, and the power transmission torque detection testing device is connected with the T type beam assembly body through a cross shaft type universal shaft coupler. The test piece assembly body is installed at the ground base above the T type beam assembly body. A simulated frame side beam supporting platform in the test piece assembly body and an upper surface of a rectangle bearing platform in the power transmission torque detection testing device are on the same horizontal plane, the simulated frame side beam supporting platform in the test piece assembly body is lower than an upper surface of a vibration T type beam for 50 mm, and the upper end of the vibration T type beam is parallel with the simulated frame side beam supporting platform.

Description

technical field [0001] The invention relates to a test device for detecting and testing parameters of a transmission system of a rail vehicle, more specifically, the invention relates to a six-degree-of-freedom dynamic simulation loading test bench for axle box bearings of an EMU transmission system. 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 the EMUs at all levels has also been carried out. Among them, the maintenance of...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that the EMU drive train axle box bearing reliability test cannot be done in the actual operation of the EMU, and to provide a six-degree-of-freedom dynamic simulation loading test bench for the drive train axle box bearing of the EMU

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