A ultrasonic flaw detector is design for outer rings of railway freight bearings,in which using gear transmission principle,the rotation of workpiece and vertical movement of sensor is coupled,making sensor to move spirally on the surface of the outer ring,realizing full-covering detection.%设计了铁路货车轴承外圈超声波探伤机,其利用齿轮传动原理,把工件的旋转运动与探头的垂直移动相结合,使探头在外圈表面形成螺旋形探伤带,实现了轴承外圈外表面的全覆盖探伤.
展开▼
