理化检验-物理分册2024，Vol.60Issue(4)：46-48,53,4.DOI:10.11973/lhjy-wl202404011
船用齿轮箱中齿轴断齿原因
Causes of gear shaft fracture in marine gearbox
胡前城 1周俊 2李兵2
作者信息
- 1. 海军装备部驻上海地区第十一军事代表室,上海 200129
- 2. 沪东重机有限公司,上海 200129
- 折叠
摘要
Abstract
Aiming at the tooth fracture accident of the middle gear shaft in the marine gearbox,the causes of the tooth fracture were analyzed by means of macroscopic observation,chemical composition analysis,scanning electron microscopy and energy spectrum analysis,hardness test and metallographic examination.The results show that there was Al2O3 slag on the subsurface of the middle gear shaft,and the alternating stress existed in the gear during operation,which caused the microcracks to initiate in the gear,and the microcracks further fatigue expanded,eventually leading to the fracture of the gear.关键词
齿轴/疲劳断裂/Al2O3夹渣/交变应力/硬度梯度Key words
gear shaft/fatigue fracture/Al2O3 slag/alternating stress/hardness gradient分类
矿业与冶金引用本文复制引用
胡前城,周俊,李兵..船用齿轮箱中齿轴断齿原因[J].理化检验-物理分册,2024,60(4):46-48,53,4.
