M5-36-11No.20.5风机轴断裂分析  

THE FRACTURE OF THE M5-36-11No.20.5 FAN AXLE OF AN ELECTRICAL FACTORY

作　　者：史月丽[1] 周华茂[1] 曹炜[1] 孙智[1] 

机构地区：[1]中国矿业大学机电与材料工程学院,徐州221008

出　　处：《理化检验（物理分册）》2002年第9期398-400,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用宏微观检验、化学分析和显微硬度检测等方法对风机轴的断裂原因进行了分析。结果表明 ,该轴断裂是由于轴表面存在焊接缺陷 ,在旋转弯曲应力作用下产生低应力疲劳开裂。A study on the cracks of the fan axle by means of macroscopic and microscopic inspections, chemical testing and micro hardness analysis as well as the force distribution analysis on the axle have been made in this paper. The results showed that the weld detects on the surface of the axle was the reason to cause low stress fatigue under rotation bending stress which finally lead to the fatigue cracks on the axle.

关 键 词：风机 轴断裂 低应力疲劳 焊接缺陷 

分 类 号：TH4[机械工程—机械制造及自动化] TH133.2