Multiple unit train hollow shaft ultrasonic detection system and detection method

Abstract

A multiple unit train hollow shaft ultrasonic detection system mainly includes a feeler lever module, a motor control module, an UT (ultrasonic testing) module, and user software. The working process of the system is as follows: after logining into the user software, configuring detection shaft type and detection parameters, and driving two motor modules to run. The motor modules drive a rotary motor and a feed motor, the rotary motor drives the rotation of a feeler lever, and the feed motor drives the movement of the feeler lever by a hinge. Different types of multiple probes are arranged on the different positions of the feeler lever. The probes are controlled by the UT module, and the UT module sends ultrasonic wave, then receives the reflected ultrasonic wave, and uploads the ultrasonic testing data into the user software. Through data processing and transformation by use of the user software, the system can display an A scanning graph, and visually draw a B scanning graph and a C scanning graph, so that the presence or absence of defects and size and location of the internal defects can be quickly determined, and the system also has storage, playback and consulting and other functions.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing, and more specifically relates to an ultrasonic testing system for internal defects of a hollow axle of an EMU. Background technique [0002] As one of the important parts of the train, the hollow axle of the EMU is more complicated in the actual operation and loading state. It not only bears the braking force and the reaction force of the rail, but also bears the impact load from the line and the lateral action on the curve when passing the curve. The guiding force of the rim. In addition, each mating part of the axle has different loads such as axial force, radial force, shear force, bending moment, torque, etc. acting alone or together, so the axle is easy to be damaged during the operation of the train. From ordinary trains, express trains, EMUs to high-speed railways, the speed has been greatly improved. Under the condition of high-speed operation, the requirements for hollow...

AI Technical Summary

Problems solved by technology

During the detection process, only the real-time A-scan display can be realized, and the B-scan and C-scan display can not be displayed in real time. After the detection is completed, the playback must rely on manual interpretation to obtain detailed information such as the size of the defect location.

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