点接触纯滚动被试轴承球润滑性能研究  

Study of the Specimen Balls Lubricating Property in Elliptical Contact Zone under Pure Rolling

作　　者：周井玲[1] 吴国庆[1] 丁锦宏 陈晓阳[3] 

机构地区：[1]南通大学机械工程学院,江苏南通226007 [2]南通纵横国际股份有限公司,江苏南通226007 [3]上海大学轴承研究室,上海200072

出　　处：《润滑与密封》2006年第12期89-91,共3页Lubrication Engineering

基　　金：上海市科技发展基金重点项目(0152nm031);江苏省教育厅自然科学基金项目(05KJB460106);南通市青年学术带头人带课题进修计划项目(Z5005);南通大学自然科学基金项目

摘　　要：润滑工况是滚动接触疲劳寿命的主要影响因素之一,而润滑剂、接触形式等因素都对润滑状态有所影响。采用新研制的三点接触纯滚动轴承球加速疲劳试验机,研究了被试球钢球和陶瓷球在润滑油N32润滑下的润滑性能,并计算了最小油膜厚度及润滑膜参数,分析了润滑状态。结果表明,所用的润滑油N32是合适的,被测试的钢球和陶瓷球工作在弹性流体动力润滑(EHL)状态。分析结果为钢球和陶瓷球的对比滚动接触疲劳性能试验提供了理论基础。Lubrication work condition is one of the main factors influencing roiling contact fatigue life. The lubricant and contact mode affect Lubrication status. A newly developed pure rolling fatigue test rig with three contact points was used to test the fatigue properties of bearing balls. When steel balls and ceramic balls were separately used as the specimen balls, the lubricant N32 was used as lubricating oil, the lubricating properties of the specimen balls were studied, the minimum oil film thickness and lubricating film parameter were calculated. Lubrication condition was analyzed. The result indicates the tested steel balls and ceramic balls works on the elastohydrodynamic lubrication status. The research provides fundamental basis for the contrast rolling contact fatigue tests of steel and ceramic balls.

关 键 词：轴承球 滚动接触疲劳 弹性流体动力润滑 

分 类 号：TH132.33[机械工程—机械制造及自动化]