Study on High-speed and Multicycle Impact Resistance of Automobile Chain Roller

Abstract

Abstract:

Through the table and road testing, failure style of an automotive chain under normal service conditions was analyzed using scanning electron microscopy. The experimental results show that: failure of automobile chain roller is the mainly impact to fatigue damage, and accompanied by fatigue pitting, abrasive wear phenomenon. Based on the test results, many methods were studied to improve the fatigue resistance, multicycle impact, and wear-resistant performance of automotive chain, such as a reasonable choice of roller materials and heat treatment process, rational design of roller forming process and the outer profile shape, etc. 

Key words: automobile chain, roller, high-speed and multicycle impact, fatigue pitting

摘要：

通过台架和道路行驶试验,利用扫描电镜微观分析了汽车链在正常服役条件下的失效形式。试验结果表明:汽车链传动中滚子元件的失效形式主要表现为冲击疲劳破坏,并伴有疲劳点蚀、磨粒磨损现象。根据试验结果,探讨了合理选择滚子零件的材料及热处理工艺、合理设计滚子的成形工艺和外廓形状等措施,以提高汽车链的抗多冲疲劳断裂和耐磨损的能力。

关键词:

汽车链, 滚子, 高速多冲, 疲劳点蚀

CLC Number:

TH132.45

WANG Chu-Kun, FENG Li, MENG Fan-Zhong. Study on High-speed and Multicycle Impact Resistance of Automobile Chain Roller[J]. China Mechanical Engineering, 2010, 21(9): 1009-1013.

王淑坤, 冯立, 孟繁忠.

汽车链滚子元件的高速多冲抗力研究

[J]. 中国机械工程, 2010, 21(9): 1009-1013.

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