螺杆钻具挠性轴断裂失效分析及预防措施

FAILURE ANALYSIS AND PRECAUTIONS FOR THE FLEXIBLE SHAFT ON SCREW DRILLS

针对螺杆钻具挠性轴早期断裂失效频繁的问题，对典型失效样品进行了失效原因分析。提出了合理设计、制造、装配及使用应采取的预防措施。

Abstract In the light of the premature failure of the flexible shaft on screw drills,this article makes a failure study on the typical premature failure samples, and presents the precaution concerning structural design and manufacture, and assemble and use.