| 齿轮轴断齿分析 |
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| 引用本文： | 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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| 作者姓名： | 刘庆兰 程里 王春莉 |
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| 作者单位： | 1. 重庆齿轮箱责任有限公司质保部,重庆,402263
2. 重庆工学院材料工程学院,重庆,400050 |
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| 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。
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| 关 键 词： | 齿轮轴 疲劳断齿 高温流变 供油不足 |
| 文章编号： | 1001-4012（2006）12-0639-03 |
| 收稿时间： | 2006-02-23 |
| 修稿时间： | 2006-02-23 |
TOOTH BROKE ANALYSIS OF GEAR AXLE |
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| 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. |
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| Authors: | LIU Qing-lan CHENG Li WANG Chun-li |
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| Affiliation: | 1. Chongqing Gearbox CO. LTD. , Chongqing 402263, China;2. College of Materials Engineering, Chongqing Intitute of Technology, Chongqing 400083, China |
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| 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. |
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| Keywords: | Gear axle Fatigue fracture of teeth High temperature flowing distortion Short in oil supply |
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