Wheel-type probe for ultrasonic phased array detection of train wheel set

Abstract

The invention discloses a wheel-type probe for ultrasonic phased array detection of a train wheel set. The wheel-type probe consists of a set of ultrasonic array combined probe, a set of wheel-type scanning device, a wheel-type encoder and a set of following movement device, wherein the ultrasonic array combined probe is arranged at the center of the interior of the wheel-type scanning device; the wheel-type scanning device is filled with water and is closed, and the detection is carried out in a method similar to an ultrasonic water immersion method; when the wheel-type scanning device and the following movement device rotate along the circumferential direction of pedal surfaces, because of the scientific design of tire appearance, the tire is still reasonably pressed during rotation and can be perfectly coupled with the pedal surfaces; meanwhile, the water is sprayed in a spray mode, the surface of the tire is moisturized, when the detection is performed, the probe is perpendicular to a detecting surface during detection all the time, and the sound wave enters the interior of an iron rail through the water and a tire rubber layer to defect flaw, the sound wave returns along an original path after the defect is found, and the defect is fed back to an instrument to be displayed; the wheel-type encoder rolls together with the following movement device, and a circumferential movement track of the train wheel can be recorded, so that the defect positions of the train wheel set can be clearly judged in the scanning image of the instrument. By only needing one set of ultrasonic wheel-type probe device, the coupling is carried out without needing a large amount of water, so that on-line detection on the train wheel set can be realized, and the train wheels can be relatively and flexibly detected and the miniaturization and the environmental protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of detection of train wheel sets, and in particular relates to a wheel probe for ultrasonic phased array detection of train wheel sets and the application of a modified probe. Background technique [0002] The wheel is the final force-bearing part of the rolling stock. It transmits the load of the rolling stock to the rail and rotates on the rail to complete the operation of the rolling stock. The quality of the wheel performance directly affects the safety of driving. In recent years, with the rapid development of high-speed railways, the requirements for wheelsets of rolling stock are higher. Stress concentration tends to occur near wheel treads, rims, spokes, and spoke plate holes, causing failures such as fatigue cracks on wheels, and in severe cases, wheel breakage and subversive accidents of locomotives. Therefore, the detection of train wheelsets is very necessary. [0003] The traditional detecti...

AI Technical Summary

Problems solved by technology

The probe layout of this traditional wheel set scanning system is relatively complicated, which cannot achieve flexibility and miniaturization

Images