摘要
针对航空机体自润滑滚轮轴承外圈沿滑轨往复滚动的运动方式以及高温、低温、介质喷淋等工作环境的特殊性,研发了专用的航空机体自润滑滚轮轴承摩擦磨损性能试验机。首先,对自润滚轮轴承的试验要求和试验机的设计要求进行了分析;然后,介绍了试验机的主体结构及其驱动系统、加载系统、环境模拟系统、测控系统等主要组成与功能,对关键零部件进行了计算分析;最后,在研制的试验机上进行了试验应用,发现了低温、介质污染等环境条件对自润滑滚轮轴承摩擦系数、磨损寿命的不利影响。结果表明:试验机能满足规定的功能要求,关键技术指标符合相应的精度要求,总体设计方案合理可行。通过台架模拟试验,能有效评估轴承的摩擦磨损性能及薄弱环节,为其质量提升或装机应用提供技术支撑。
Aiming at the special working conditions of aerospace airframe self-lubricating roller bearings,including their reciprocating rolling motion along slide rails and operation under extreme environments such as high/low temperatures and contaminated medium spraying,the paper presents a specialized friction and wear performance tester.Firstly,the test requirements for self-lubricating roller bearings and design specifications of the tester were analyzed.Then the overall structure of the tester and the main components and functions of its driving system,loading system,environmental simulation system,and measurement-control system were introduced.Meanwhile,the key parts were calculated and analyzed.Finally,experimental applications were conducted on the developed machine.It is found that environmental conditions such as low temperature and fluid contamination have adverse effects on the friction coefficient and wear life of self-lubricating roller bearings.The results indicate that the tester can meet the specified functional requirements,with key technical indicators conforming to the corresponding precision requirements.The overall design scheme is rational and feasible.Through bench simulation tests,the friction and wear performance of bearings and the weak links can be effectively evaluated.The scheme can provide technical support for their quality improvement or installation application.
作者
张斌
章有良
李小明
连芸英
任宁
ZHANG Bin;ZHANG Youliang;Li Xiaoming;LIAN Yunying;REN Ning(Zhejiang Testing&Inspection Institute for Mechanical and Electrical Products Quality Co.,Ltd,Hangzhou 310051,China)
出处
《西安工业大学学报》
2025年第4期597-607,共11页
Journal of Xi’an Technological University
基金
工信部产业技术基础公共服务平台项目(2021-0170-1-1)。
关键词
航空
自润滑滚轮轴承
工况模拟
摩擦磨损性能
试验机
aerospace
self-lubricating roller bearing
working condition simulation
friction and wear performance
tester
