拔销器手动拔销螺纹咬死故障分析与防控

Analysis and Prevention of Retracting Actuator Screw Thread Galling

为解决拔销器螺纹咬死故障,通过失效分析和机理研究,从配合螺纹公差带设计、螺纹材料选择、螺纹表面处理及润滑剂使用四个方面提出了防止螺纹咬死控制措施,并进行了相关试验验证,有效解决了拔销器反复拆装过程的螺纹咬死现象,有利于提高产品质量。

In order to solve the problem of screw thread galling when retracting actuator is assembled,the mechanism of screw thread galling is analyzed,a series of preventative measurements such as thread tolerances design、thread material choose、thread surface treatment and lubricant used are proposed and validated by experiments.Through this work,the problem of screw thread galling can be prevented and controlled during retracting actuator is assembled.This can improve the reliability and quality of product.