High-speed wheel-rail relationship reliability test bench

Abstract

The present invention relates to a high-speed wheel-rail relation reliability test bed. The high-speed wheel-rail relation reliability test bed comprises a rail wheel motion device and a power truck simulation loading framework, wherein two unilateral shafts of the rail wheel are respectively connected with number 1 roller linkage transmission shaft assembly body and a number 3 roller linkage transmission shaft assembly body; the power truck simulation loading framework includes a counter-force square tube beam frame vibration excitation device, a bearing frame-type support assembly body, a number 1 counter-force base fixed device and a number 2 counter-force base fixed device; the counter-force square tube beam frame vibration excitation device, the number 1 counter-force base fixed device and the number 2 counter-force base fixed device are respectively fixedly connected with globe joint bearing block assembly bodies of the numbers 1-3, the loading framework side beams of the side beam clamping plate assembly bodies of the numbers 1-2; and the outer sides of a number 5 spherical guide strip and a number 6 spherical guide strip are fixedly connected at the inner side of the number 1 bearding frame-type support. According to the invention, the problem is solved that a train is difficult to perform the wheel rail relation reliability test in the process of actual operation in the prior art, and the requirement of the reliability parameter detection of a rail vehicle wheel in a plurality of operation conditions is satisfied.

Description

technical field [0001] The invention relates to a wheel-rail interaction test platform based on wheel-rail contact, in particular to a high-speed wheel-rail relationship reliability test platform. Background technique [0002] At present, under the premise of our country's implementation of the railway speed-up policy, the running speed of rail vehicles has been greatly improved. The maximum speed of the EMUs already in operation has reached 350km / h, and the maximum speed of the EMUs under development is close to 500km / h. By 2020, the national railway network will be basically completed, the operating mileage will reach more than 100,000 kilometers, the passenger dedicated line and high-speed railway will reach 10,000 kilometers, and the urban rail transit will reach about 4,000 kilometers. Due to the increase of vehicle speed and the increase of axle load, the service environment of trains and track structural materials has deteriorated, and various hidden dangers have be...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-speed wheel-rail relationship reliability test bench, which solves the problem that it is difficult to carry out the wheel-rail relationship reliability test in the actual operation of trains in the prior art, and satisfies the requirements of rail vehicle wheelsets under various operating conditions. The need for reliability parameter detection of

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