| 游星齿轮轴承失效分析 |
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| 引用本文： | 谭帅,曾西军.游星齿轮轴承失效分析[J].失效分析与预防,2007,2(2):37-39,61. |
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| 作者姓名： | 谭帅 曾西军 |
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| 作者单位： | 哈尔滨航空工业(集团)有限公司,哈尔滨,150066 |
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| 摘 要： | 某发动机用游星齿轮轴承在工作过程中发生失效,保持架断裂,滚棒、滚道磨损.本文对失效保持架、滚棒、中间齿轮轴进行了断口形貌观察、金相组织及硬度检测、化学成分分析等工作.分析结果表明,保持架的断裂性质为疲劳断裂,滚道的损伤性质为接触疲劳.游星齿轮轴承的失效主要与轴承组件中应力不均匀、局部应力过大有关.
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| 关 键 词： | 游星齿轮 轴承 失效 疲劳断裂 接触疲劳 |
| 文章编号： | 1673-6214（2007）02-0037-03 |
| 修稿时间： | 2006-12-202007-02-08 |
Failure Analysis on Bearing of Planetary Gear |
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| TAN Shuai,ZENG Xi-jun.Failure Analysis on Bearing of Planetary Gear[J].Failure Analysis and Prevention,2007,2(2):37-39,61. |
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| Authors: | TAN Shuai ZENG Xi-jun |
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| Affiliation: | Harbin Aviation lndustry (Group |
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| Abstract: | The planetary gear bearing of an engine failed in service with the fractured cage and the wearing rollers and raceway, Observations were performed on the fracture surfaces and examinations were given to metallography and hardness as well as chem- istry compositions. The results showed that the cage fractured with a fatigue mode and the raceway was damaged with a contact fatigue mode. Failure of this planetary gear bearing is mainly related to the asymmetry stress and the local higher stress. |
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| Keywords: | planetary gear bearing failure fatigue fracture contact fatigue |
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