大直径空心轴类超声探伤系统

Development of Ultrasonic Testing System for Large Diameter Hollow Shaft

摘要: 多数大型旋转装备的轴系采用大直径空心轴, 必须定期进行在役无损检测。本文设计研制了用于直径30 mm以上的空心轴类的超声探伤系统, 由旋转式探头、超声检测系统、机械控制系统、机械推拔系统、油路耦合系统以及工业用计算机系统等子系统组成。本系统在国内某类大直径空心轴进行了检测实验, 实验结果证明, 本系统性能完全达到进口设备的水平。

Abstract: Most of large-size rotary machines are equipped with hollow shafts. The shafts must be tested by NDT system regularly. In the paper, ultrasonic testing system of hollow shaft is designed and developed in China for the first time. Structure and principle of mechanism in the system are described chiefly. Finally, the system is used for to test one kind of domestic hollow shaft. Testing results show that performance of the system is up to imported equipment.