基于自动化生产线上的废旧钢轨超声波探伤机构设计

Ultrasonic Wave Based on Used Rail in Automatic Production Line Design of Flaw Detection Mechanism

钢轨超声波探伤是无损检测技术中的一种检测方法,其作用是利用超声波对钢轨内部组织结构进行探测分析,为此,设计了一种在自动化生产线上对废旧钢轨进行超声波探伤作业的机构,利用超声波原理,对被测钢轨损伤进行探测,探头发射的超声波遇到钢轨中的裂纹或焊缝等后会反射回来一定强度的“回波”,通过回波分析,从而可以判定被测钢轨是否有损伤、损伤程度及损伤位置。

Rail ultrasonic inspection is one of the testing methods in nondestructive testing technology.Its role is to use ultrasonic to detect and analyze the internal structure of the rail.In this paper,we design a mechanism for ultrasonic inspection of waste rail on an automated production line.Using the principle of ultrasonic,we detect the damage of the measured rail.The ultrasonic emitted by the probe will reflect back a certain intensity of"echo"when it encounters cracks or welds in the rail.Thus,it can determine whether the measured rail has damage,damage degree and damage location.