理化检验-物理分册2026，Vol.62Issue(1)：38-41,4.DOI:10.11973/lhjy-wl240291
行星轮轴掉块原因
Reasons for chipping of planetary gear shaft
曹耕原 1王明海 1冯银平 1张敏杰 1杜冈峰1
作者信息
- 1. 第一拖拉机股份有限公司 制造工程中心,洛阳 471004||洛阳市机械产品失效分析重点实验室,洛阳 471004
- 折叠
摘要
Abstract
The planetary gear shaft of the final transmission system of a certain type of tractor fell off during use.The reasons for the chipping of the planetary gear shaft were analyzed by means of macroscopic observation,chemical composition analysis,mechanical property test,metallographic examination and scanning electron microscopic analysis.The results show that the reason for the chipping of the planetary gear shaft was that the heat treatment temperature of the part was excessively high,leading to the formation of an overheated structure,which reduced the impact toughness and led to the fracture of the gear shaft.关键词
行星轮轴/断口/过热/冲击韧性Key words
planetary gear shaft/fracture/overheat/impact toughness分类
矿业与冶金引用本文复制引用
曹耕原,王明海,冯银平,张敏杰,杜冈峰..行星轮轴掉块原因[J].理化检验-物理分册,2026,62(1):38-41,4.
