High-speed EMU oscillating drive train assembly reliability test bench

Abstract

The invention discloses a high-speed train swing-type transmission system assembly reliability testbed which solves the problem that in the prior art, a transmission system is placed in a static environment, and a gear box assembly or a dragging motor is respectively researched. The high-speed train swing-type transmission system assembly reliability testbed comprises a torque detecting test device and a transmission system assembly test device. A dragging motor and gear box assembly fixing device in the transmission system assembly test device comprises a high-speed train gear box fixing supporting assembling body which comprises a gear box fixing supporting base, a gear box C-shaped clamp bearing shaft assembly and a gear box C-shaped hanging frame assembling body. The left half part of the gear box C-shaped clamp bearing shaft assembly is horizontally placed at the upper end of a vertical stand column in the gear box fixing supporting base and is fixed on the two sides of the vertical stand column through T-shaped bolts, and the right half part of the gear box C-shaped clamp bearing shaft assembly is in rotating connection with the gear box C-shaped hanging frame assembling body through a gear box C-shaped clamp bearing shaft hinge pin shaft.

Description

technical field [0001] The invention relates to a test platform for detecting parameters of a rail vehicle drive train assembly, more specifically, the invention relates to a reliability test platform for a swing type drive train assembly of a high-speed EMU. 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 train speed and vehicle axle load, the vibration between the vehicle and the track is intensified, the running stability of the vehicle is reduced, and the problems of train safety and ride comfort are becoming more and more prominent. [0003] According to the analysis of train faults in actual operation, the drive train of high-speed trains is the weak link when trains run at high speed. Due to the large transmission torque, high gear speed and excessive vehicle vibration, the t...

AI Technical Summary

Problems solved by technology

However, most of the existing schemes rigidly connect the tested transmission system (traction motor and gearbox) during the test. Since the test needs to rely on external excitation to make the relative displacement of the traction motor and the gearbox, this This lack of flexible connection can only rely on the deformation of some flexible parts of the drive train itself (such as rubber pads and other parts) to bear the huge internal force caused by relative displacement. The rigidity of these schemes is relatively large, and these schemes will still generate a large internal force inside the tested part during the test, which will inevitably cause certain damage to the tested part

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