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重型汽车中桥减速器润滑油中磨损颗粒分析
引用本文:曾群锋,王 涛,周 彬,唐正义,董光能.重型汽车中桥减速器润滑油中磨损颗粒分析[J].润滑与密封,2015,40(4):1-4.
作者姓名:曾群锋  王 涛  周 彬  唐正义  董光能
作者单位:西安交通大学,西安交通大学,陕西省汉德车桥有限公司,陕西省汉德车桥有限公司,西安交通大学
基金项目:国家自然科学基金项目(51305331); 江西省科学院省级铜钨新材料重点实验室开放基金项目(2013-KLP-03).
摘    要:重型汽车中桥减速器在工作过程中其摩擦副接触表面因相对运动而产生的磨损颗粒进入润滑油中,导致润滑油性能下降;磨损颗粒随润滑油进入摩擦副接触表面,摩擦副磨损加剧。根据重型汽车的运行特点,每隔一定里程数对减速器润滑油进行取样,综合分析在用润滑油中磨损颗粒物的大小、形貌及成分。结果表明:减速器在用润滑油中磨损颗粒主要成分是铁屑和铜屑,磨损颗粒主要来自于球面垫片(铜)及其配副的摩擦以及齿轮副间的摩擦。具体分析磨损颗粒产生过程及形成机制,为重型汽车中桥减速器中运动摩擦副的设计及制造提供理论依据。

关 键 词:磨损颗粒  润滑油  过滤  形貌特征

Analysis of Wear Particles from Lubricant Oil of Heavy Truck Decelerator
Abstract:The wear particles were introduced into lubricating oil in the running-in process of the friction pair with relative movement in the heavy car axle, which leads to the decline of lubricating oil performance. The wear particles entered the contact surface of the friction pair with the lubricating oil, which leads to the aggravated wear. According to the running characteristics of heavy trucks, the used lubricating oils for decelerator under different driving mileages were sampled, and the wear particles in the oils were analyzed comprehensively for sizes, morphology and composition. The results show that the main wear particles in the lubricating oils are iron and copper debris, which are mainly derived from the friction pair of spherical shim (Copper) and gear pairs. The formation mechanism and producing process of wear particles were analyzed, which provide the theoretical basis of the design and manufacture of the moving friction pair in heavy truck decelerator.
Keywords:wear particles  lubricating oil  filter  morphology
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