一种用于动车车轮缺陷自动检测的超声波探头机构.

Aiming at the defects such as blind detection and poor coupling effect of automatic detection of contact surface existing in the traditional ultrasonic detection technology used for detecting the defects of CRH wheel, a new parallel passive self coupling multi wafer probe mechanism is proposed, which can not only effectively eliminate the blind detection zone, but also ensure a good real-time coupling between ultrasonic probe and the wheel surface. A basic structure of the probe mechanism is introduced in this paper, and the degree of freedom of the mechanism is solved by using the topological structure theory based on the orientation feature set. An analysis is made on the mechanism for the automatic detection of the kinematic performance, and by using relevant software, the mechanism parameters are simulated, and the working space of the mechanism is obtained, which lays a theoretical foundation for the full implementation of the automatic ultrasonic detection of the train wheel defects. [ABSTRACT FROM AUTHOR]