Crankshaft excitation pitching short-shaft grounding device test bench

Abstract

The invention belongs to the technical field of rail vehicle testing, in particular to a crankshaft excitation pitching short-shaft grounding device test bench, and is suitable for testing the comprehensive performance of a high-speed rail vehicle axle box bearing and the wear of a shaft end grounding device. The test bench is mainly composed of a crankshaft excitation swing beam type double shortshaft device (1), No. 1, 2 hollow swing shaft supporting column assemblies (2,3), a built-in bearing seat excitation crankshaft assembly (4) and a crank inner bearing box (6), and the crankshaft excitation swing beam type double short shaft device (1) is connected with the crank inner bearing box (6) through the No. 1, 2 middle support excitation link assemblies (5, 51) and is fixed above the crank inner bearing box (6). The test bench can truly reflect the actual running condition of the axle box axle bearing of the train and solves the problem that the bearing failure analysis obtained fromthe test has some deviations from the practical use of the bearing.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle testing, and in particular relates to a crankshaft-excited jolting short-axis grounding device test bench, which is suitable for testing the comprehensive performance of high-speed rail vehicle axle box bearings and the wear of the axle end grounding device. Background technique [0002] At present, due to my country's implementation of the policy of greatly increasing the speed of railways, the running speed of rail vehicles in my country has been greatly improved, which has also led to the rapid development of high-speed train technology. The maximum speed of high-speed trains already in operation has reached 350km / h, the maximum speed of the newly developed high-speed train set is close to 600km / h. However, the increase of train speed and the increase of vehicle axle load make the vibration between the vehicle and the track intensified, and the safety and stability of vehicle operation are ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing test bench cannot truly reflect the actual operating conditions of the rail train axle box bearings, the bearing failure analysis obtained from the test still has some deviations from the actual use of the bearings, causing the bearings to overheat and even lead to shaft cutting Accidents, seriously affecting driving safety and other issues, provide a crankshaft excitation bump short axis grounding device test bench

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