华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (10): 116-121.doi: 10.3969/j.issn.1000-565X.2015.10.017

• 机械工程 • 上一篇    下一篇

滚道表面凹坑对脂润滑滚动轴承油膜特性的影响

彭朝林1 黄博2 谢小鹏陈祯4 李兴林5   

  1. 1. 长安大学 汽车学院,陕西 西安 710064; 2. 海南大学 应用科技学院,海南 儋州 571737; 3. 华南理工大学
    机械与汽车工程学院,广东 广州 510640; 4. 中国地质大学(武汉) 机械与电子信息学院,湖北 武汉 430074;
    5. 杭州轴承试验研究中心有限公司,浙江 杭州 310022

  • 收稿日期:2014-10-13 修回日期:2015-06-12 出版日期:2015-10-25 发布日期:2015-09-06
  • 通信作者: 谢小鹏(1961-),男,教授,博士生导师,主要从事摩擦学理论与应用研究. E-mail:xiexp@ scut.edu.cn
  • 作者简介:彭朝林(1987-),男,博士,主要从事汽车摩擦学与润滑理论研究.E-mail: peng.c.l@foxmail.com
  • 基金资助:
    广东省自然科学基金资助项目(S2011010002118);陕西省国际科技合作与交流计划项目(2015KW-009);中国地
    质大学(武汉)中央高校基本科研业务费专项资金资助项目(CUGL140823)

Effects of Raceway Surface Dents on Oil Film Characteristics of Grease-Lubricated Rolling Bearing#br#

Peng Chao-lin1  Huang Bo2  Xie Xiao-peng3  Chen Zhen4  Li Xing-lin5   

  1. 1. School of Automobile,Chang’an University,Xi’an 710064,Shaanxi,China; 2. College of Applied Science and Techonlogy,Hainan University,Danzhou 571737,Hainan,China; 3. School of Mechanical and Automobile Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 4. Faculty of Mechanical and Electronic Information,China University of Geosciences,Wuhan 430074,Hubei,China; 5. Hangzhou Bearing Test & Research Center,Hangzhou 310022,Zhejiang,China
  • Received:2014-10-13 Revised:2015-06-12 Online:2015-10-25 Published:2015-09-06
  • Contact: 谢小鹏(1961-),男,教授,博士生导师,主要从事摩擦学理论与应用研究. E-mail:xiexp@ scut.edu.cn
  • About author:彭朝林(1987-),男,博士,主要从事汽车摩擦学与润滑理论研究.E-mail: peng.c.l@foxmail.com
  • Supported by:
    Supported by the Natural Science Foundation of Guangdong Province(S2011010002118)

摘要: 采用数值计算方法分析了不同尺寸大小和位置的滚动轴承滚道表面凹坑对脂润滑油膜压力和油膜厚度分布规律的影响,并与光滑表面情况下的脂润滑油膜压力和厚度的分布进行了对比,最后采用扫描电子显微镜和能谱仪(EDS)对理论计算结果进行了验证. 结果表明:表面凹坑的存在使表面凹坑边缘位置存在油膜压力峰,而在表面凹坑中心
周围区域油膜压力急剧减小;表面凹坑润滑区域在靠近入口处一侧至靠近出口处一侧方向的润滑油膜厚度出现跃升现象,但相比于光滑表面,润滑脂油膜整体变薄;表面凹坑的尺寸大小和所处位置对油膜压力和油膜厚度的分布均有显著影响.

关键词: 滚动轴承, 润滑脂, 表面凹坑, 数值计算

Abstract: In this paper,the numerical calculation method is employed to analyze the effects of the surface dents in
rolling bearing raceways of different sizes and locations on the distribution of the oil film pressure and thickness in the state of grease lubrication. Then,the distribution is compared with that on a smooth surface. Finally,the results of theoretical analyses are verified by using a SEM and an EDS. The results show that (1) due to the existence of surface dents,the film pressure reaches the peak in the edges of the surface dents,while it decreases sharply in the central areas of surface dents; (2) the film thickness zooms in the lubrication areas of surface dents in the direction from near the entrance side to the exit side,but the film on the whole is thinner than that on a smooth surface; and (3) both the size and the location of surface dents have significant influences on the distribution of the oil film pressure and thickness.

Key words: rolling bearing, greases, surface dent, numerical calculation

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