Portable subway traction motor bearing state detection device

Abstract

The invention relates to a portable subway traction motor bearing state detection device. The portable subway traction motor bearing state detection device comprises an on-train part, wherein the on-train part comprises an upper computer, a wireless router and a wireless charging transmitting end which are arranged in a carriage above a bogie; and a under-train part, arranged on the bogie and comprising a signal acquisition assembly, a wireless communication assembly, an electric loading and unloading assembly and a power supply assembly. The signal acquisition assembly comprises a vibration acceleration sensor which is detachably installed on the surface of a traction motor shell through an electric assembling and disassembling assembly and is used for acquiring a vibration acceleration signal of a traction motor, and a voltage sensor which is used for acquiring a voltage signal of the power supply assembly. And the signal acquisition assembly communicates with the upper computer through the wireless communication assembly and the wireless router. Compared with the prior art, the system has the advantages of being convenient to install, use and carry, easy to monitor and maintain, high in reliability, high in data accuracy and real-time performance and the like.

Description

technical field [0001] The invention relates to the field of subway vehicle state detection, in particular to a portable subway traction motor bearing state detection device. Background technique [0002] The traction motor bearings of subway vehicles are an important structure for transmitting torque and bearing loads. The working environment is harsh, and the bearings run under heavy loads for a long time, which will inevitably cause problems such as corrosion or wear. The small defects of parts and components will cause different amplitude vibrations to the car body after a long period of train operation, which will accelerate the damage of the motor bearing of the vehicle and seriously threaten the operation safety of the train. Real-time and effective diagnosis and early warning of the motor bearing will not only It can ensure the safety of vehicle operation, reduce maintenance costs, promote intelligent diagnosis and provide support for train operation and intelligent ...

AI Technical Summary

Problems solved by technology

[0003] At present, the state detection of vehicle traction motor bearings still stays in the manual maintenance during vehicle maintenance, which is inefficient, and in the train vibration, the factor that directly stimulates the axle damage lies in the unevenness of the track. In different degrees of urban construction and train construction Running and other conditions will cause different degrees of fatigue damage to the rails

Therefore, the study of safe operation from the perspective of train vibration needs to be combined with the smoothness of the track. However, due to the requirement of track running time, only a few hours of work time in the early morning can be provided, and the time is tight and the maintenance of the entire line is guaranteed. Very high requirements are placed on manpower and material resources, which leads to the untimely update of the current track smoothness

The existing detection device is not convenient enough to use and cannot perform real-time state detection and analysis on the vibration of the traction motor bearing under the vehicle, the vibration of the rigid body of the bogie and the smoothness of the rail during the running of the vehicle. To solve these problems, it is necessary to provide a portable subway traction Motor bearing state detection device

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