A rolling vibration test bench for simulating the wheel-rail relationship of rail transit

Abstract

The invention relates to a rolling vibration test bench for simulating the wheel-rail relation in rail transit, which is used for simulating wheel-rail vertical loading and wheel-rail attack angle adjustment. The rolling vibration test bench comprises an overall framework supporting device, a wheel-rail simulation device, a driving shaft rotation driving device, a vertical loading device and an angle adjustment device, wherein the overall framework supporting device includes a bottom plate, a top plate, framework square steel connecting the bottom plate and the top plate and inclined square steel used for fixing the framework square steel and the bottom plate; the wheel-rail simulation device includes a lower end cover, a rolling wheel connected with the lower end cover through a driven shaft and a steel rail wheel which is in interference fit with the rolling wheel; the driving shaft rotation driving device includes a motor, a cross coupling and a driving shaft which are sequentiallyconnected, and the driving shaft is in transmission connection with the steel rail wheel; the vertical loading device is connected with the top plate and used for loading a vertical load to the rolling wheel; and the angle adjustment device is connected with the vertical loading device and used for adjusting the wheel-rail attack angle. Compared with the prior art, the rolling vibration test benchhas the advantages of tangential and transverse creep detection, high detection accuracy, ability of being economic and quick, low operation cost and the like.

Description

technical field [0001] The invention relates to the technical field of rail wave grinding, in particular to a rolling vibration test bench for simulating the wheel-rail relationship of rail transit. Background technique [0002] The rail corrugation problem is one of the difficult problems in the field of wheel-rail relationship research. With the rapid development of my country's subway traffic, the rail corrugation phenomenon of subway lines is more common. Rail corrugation not only aggravates the interaction between the wheel and rail, resulting in excessive vibration and noise of the vehicle track system, which affects ride comfort, but also shortens the fatigue life of vehicle track components and creates potential safety hazards. At present, there is no unified conclusion on the explanation of the cause of rail corrugation. Therefore, research on the causes and effects of subway rail corrugation will provide reference for in-depth systematic research on corrugation m...

AI Technical Summary

Problems solved by technology

[0003] The experimental research on wheel-rail wear mainly includes test bench test and line test. Line test refers to the test on the actual operating line or the test on a separate ring line. The test results are closer to the actual line wear, but the cost is expensive. It is not easy to test the influence of a certain factor on wheel-rail wear alone

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