基于点接触的凸轮机构润滑油膜分析  

Lubrication Film Analysis of Cam Mechanism Based on Point Contact

作　　者：曹一[1] 杨咸启[1] 常宗瑜[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100

出　　处：《润滑与密封》2008年第9期35-38,共4页Lubrication Engineering

基　　金：国家自然科学基金项目(50605060)

摘　　要：将几种常用弹流润滑最小油膜厚度公式进行了比较,并在点接触模型的基础上给出了新的计算方法。对油膜几个重要参数的影响进行了分析,计算了从动件不同运动规律下凸轮机构的最小油膜厚度。结果表明:凸轮的基圆半径和转速对于最小油膜厚度有较大影响,基圆半径越大、转速越高,则油膜越厚,因此设计时应尽量采用较大的基圆半径。Several common used minimum film thickness formulas of elasto-hydrodynamic lubrication were compared and a new formula based on point contact model was given out.The influence of several important parameters was analyzed,and the minimum film thickness of the cam with different follower motion laws was calculated.The results show that the basic circle radius and rotate speed affect the minimum film thickness clearly.The bigger the basic circle radius is and the higher the rotate speed is,the thicker the film...

关 键 词：凸轮机构 点接触 最小油膜厚度 

分 类 号：TH112.2[机械工程—机械设计及理论]