许任宗,陈勇,李光鑫,武一民,贾纪鹏

• 1:河北工业大学天津市新能源汽车动力传动与安全技术重点实验室

摘要(Abstract)：

为研究复合小径喷丸强化对齿轮接触疲劳性能的影响，通过有限元模拟与喷丸强化试验相结合对复合小径喷丸强化效果进行分析，利用齿轮接触疲劳寿命试验验证复合小径喷丸齿轮的寿命提升效果。结果表明：相较于单次小径喷丸，复合小径喷丸能够获得更大的残余压应力，且表面粗糙度更小；随着喷丸强度和喷丸覆盖率的增大，残余压应力值均有所增大，且残余压应力最大值深度基本不变。通过喷丸强化试验，验证了喷丸有限元模型的合理性，且复合小径喷丸强化在齿轮表层引入高残余压应力和提升表面硬度的同时基本不改变粗糙度大小。齿轮接触疲劳寿命试验结果表明复合小径喷丸后齿轮副间的传动效率明显升高，疲劳寿命相当于未喷丸齿轮的2.38倍，寿命提升效果明显。

关键词(KeyWords)： 复合小径喷丸;齿轮;有限元模拟;残余应力;接触疲劳性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助(2018YFE0207000);; 河北省全职引进高端人才项目(20181228)

作者(Author): 许任宗,陈勇,李光鑫,武一民,贾纪鹏

DOI: 10.13289/j.issn.1009-6264.2022-0508

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