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。
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.
出处
《理化检验（物理分册）》
CAS
2006年第12期639-641,共3页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
齿轮轴
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
