输送机减速器的断轴分析  

Analysis of Broken Shaft of Conveyor Reducer

作　　者：李陇梅[1] 张海伟[1] Li Longmei;Zhang Haiwei(Tianjin Professional College,Tianjin 300410,China)

机构地区：[1]天津职业大学,天津300410

出　　处：《煤矿机械》2020年第5期177-179,共3页Coal Mine Machinery

基　　金：天津职业大学基金资助项目(20151104)。

摘　　要：某煤矿输送机减速器在工作过程中输入轴发生断裂,采用外观分析、染料渗透检查、化学成分分析、硬度检测、微观检验及有限元分析等方法,对该输入轴的断裂原因进行了分析。结果表明:该输入轴断裂属于热处理不当引起的多源低应力弯扭组合变形疲劳断裂。The input shaft of a coal mine conveyor reducer broke during operation. The fracture causes of the input shaft were analyzed by the methods of appearance analysis,dye penetrant inspection, chemical composition analysis,hardness testing,microscopic inspection and finite element analysis. The results show that the fracture of the input shaft is belong to the multi-source low stress bending torsion combined deformation fatigue fracture caused by improper heat treatment.

关 键 词：输入轴 45钢 断裂 失效分析 

分 类 号：TH132.46[机械工程—机械制造及自动化]