Wheel set bearing fault diagnosis device and method

Abstract

The invention relates to the technical field of rail transit, and discloses a wheel set bearing fault diagnosis device and method, and the device comprises a first supporting assembly, a loading assembly, a driving assembly, a detection module, a control module, and a data processing module. The first supporting assembly is used for supporting a to-be-tested wheel set, the loading assembly is used for loading a wheel set bearing of the to-be-tested wheel set, and the driving assembly is used for driving the accompanying wheel set to rotate so as to drive the to-be-tested wheel set to rotate. The detection module is used for measuring vibration information of the wheel set bearing, and the control module can control the driving assembly to drive the accompanying wheel set to rotate and control the loading assembly to load the wheel set bearing. And the data processing module can judge the fault condition of the wheel set to be detected according to the vibration information detected by the detection module. According to the invention, the fault condition of the wheel set bearing can be rapidly measured without dismounting the wheel set bearing, and the diagnosis efficiency is high. And the diagnosis accuracy of the wheel set bearing can be ensured, a fault wheel set is prevented from being put into use, and the driving safety of a truck is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a wheel set bearing fault diagnosis device and method. Background technique [0002] The internal failure of railway freight wheel set bearings is a major hidden danger to traffic safety. Due to the lack of understanding of the mechanism of wheel set bearing failures and the lack of correct fault diagnosis methods, it is easy to cause faulty wheel set bearings to be put into use and cause traffic safety accidents. During regular maintenance, how to carry out effective diagnosis without disassembling the wheel set bearings, so as to ensure that the wheel set bearings put into use have no faults, is an urgent problem to be solved at present. [0003] In the prior art, there are two detection methods for the wheel set bearings. One is based on empirical judgment, that is, the truck wheel set is pushed to the testing station, and the operator pushes the outer ring of the wheel s...

AI Technical Summary

Problems solved by technology

However, the rotation speed of the wheel-set bearings driven manually is very low, which is far from the actual operation of the wheel-set bearings. Many faults cannot be revealed, the accuracy of fault diagnosis is low, and manual detection is time-consuming and laborious. The detection efficiency is extremely low and the detection cost is high.

The second is to use the rotating device to measure the temperature rise of the bearing, but the rotation time is limited by the rhythm of the maintenance flow, and the measurement of the bearing temperature rise is inaccurate, which also affects the fault diagnosis accuracy of the wheel set bearing

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