齿轮轴断齿分析
TOOTH BROKE ANALYSIS OF GEAR AXLE
摘 要
齿轮轴运行近1a(年)后发生相邻两齿断裂。采用宏、微观检验以及硬度试验等方法对轴的断裂原因进行了分析。结果表明，齿轮轴断齿属于疲劳断裂。因齿轮箱供油不足，造成齿轮轴在高温状态下其强度和硬度急剧下降，导致齿轮轴断齿而失效。
疲劳断齿
高温流变
供油不足
Gear axle
Fatigue fracture of teeth
High temperature flowing distortion
Short in oil supply
Abstract
The broke tooth was found in gear axle after one year operation. Analysis was performed on the crack zone by macroscopical, microscopical and hardness testing. The results showed that gear axle failture was caused by fatigue fracture. The main reason is that shortage of lubricating oil in gearbox to cause high temperature in tooth, then the strength and hardness of the gear axle decreased to cause the tooth broke in gear axle.
中图分类号 TH133.2
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收稿日期 2006/2/23
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备注刘庆兰(1953-)，女，高级工程师。
引用该论文: LIU Qing-lan,CHENG Li,WANG Chun-li. TOOTH BROKE ANALYSIS OF GEAR AXLE[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2006, 42(12): 639～641
刘庆兰,程里,王春莉. 齿轮轴断齿分析[J]. 理化检验－物理分册, 2006, 42(12): 639～641
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参考文献
【1】上海市金属学会.金属材料缺陷金相图谱[M].上海:上海科学出版社, 1966.162-163.
【2】梁开武.关于渗碳处理小试块与大齿轮组织差异分析[J].理化检验-物理分册, 1992,28(1):53-54.
【2】梁开武.关于渗碳处理小试块与大齿轮组织差异分析[J].理化检验-物理分册, 1992,28(1):53-54.
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