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| 2404730504型推力滚针轴承失效原因分析 |
| Failure Reason Analysis of Thrust Needle Roller Bearing Type 2404730504 |
| 投稿时间：2019-11-12 |
| DOI：10.16018/j.cnki.cn32-1650/n.202002007 |
| 中文关键词: 动力学 推力滚针轴承 失效分析 接触特性 |
| 英文关键词: dynamics thrust needle bearings failure analysis contact characteristics |
| 基金项目:安徽省自然科学基金重点项目(KJ2019A1131)。 |
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| 中文摘要: |
| 通过对某公司JLR整车RDU总成中2404730504型推力滚针轴承的磨损失效分析，结合硬度与金相检测，以及对该轴承生产记录的查询，推断润滑不良是轴承严重损坏的主要原因。利用常规寿命的轴承试验机对2404730504型推力滚针轴承进行贫油试验，发现其与某公司JLR整车RDU总成中实际轴承磨损状况非常吻合，总时长与循环次数也相差不大，验证了润滑不良是致使轴承严重损坏的主要原因。 |
| 英文摘要: |
| Based on the wear failure analysis of 2404730504 thrust needle roller bearing in the RDU assembly of JLR vehicle of a company, combined with the hardness and metallographic examination, as well as the query of the production record of the bearing, it is concluded that the main reason for the serious damage of the bearing is the poor lubrication. The bearing test machine with normal life was used to test the 2404730504 thrust needle roller bearing. It was found that it was very consistent with the actual bearing wear condition in the RDU assembly of JLR vehicle of a company, and the total time and cycle times were similar. It was verified that the poor lubrication was the main cause of the bearing's severe damage. |
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