• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2021, Vol. 57 ›› Issue (1): 168-178.doi: 10.3901/JME.2021.01.168

• 机械动力学 • 上一篇    下一篇

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频繁摆动工况下球轴承打滑特性研究

李峰1, 邓四二1,2,3, 张文虎1   

  1. 1. 河南科技大学机电工程学院 洛阳 471003;
    2. 高端轴承摩擦学技术与应用国家地方联合工程实验室 洛阳 471023;
    3. 辽宁重大装备制造协同创新中心 大连 116024
  • 收稿日期:2020-02-13 修回日期:2020-08-20 出版日期:2021-01-05 发布日期:2021-02-06
  • 通讯作者: 邓四二(通信作者),男,1963年出生,博士,教授,博士研究生导师。主要研究方向为滚动轴承设计及理论。E-mail:dse@haust.edu.cn
  • 作者简介:李峰,女,1997年出生。主要研究方向为滚动轴承设计及理论。E-mail:2418227282@qq.com;张文虎,男,1987年出生,博士。主要研究方向为滚动轴承设计及理论。E-mail:526916105@qq.com
  • 基金资助:
    高端轴承摩擦学技术与应用国家地方联合工程实验室开放基金(201708)、河南省自然科学基金(162300410086)和河南省科技攻关计划(172102210254)资助项目。

Skidding Characteristics of Ball Bearings Withstanding a Frequent Oscillating Condition

LI Feng1, DENG Sier1,2,3, ZHANG Wenhu1   

  1. 1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003;
    2. National United Engineering Laboratory for Advanced Bearing Tribology, Luoyang 471023;
    3. Collaborative Innovation Center of Major Machine Manufacturing in Liaoning, Dalian 116024
  • Received:2020-02-13 Revised:2020-08-20 Online:2021-01-05 Published:2021-02-06

摘要: 滚动轴承是旋转机械系统中最重要的零部件之一。频繁摆动工况下滚动轴承的打滑严重影响轴承的动力学特性,导致摆动轴承发生早期失效。基于滚动轴承动力学理论,建立了摆动深沟球轴承的动力学微分方程组,通过预估-校正(Gear stiff,GSTIFF)变步长积分算法对动力学微分方程组进行求解,研究了承载区、不断进出承载区和非承载区内钢球的打滑特性。结果表明:摆动工况下钢球的打滑明显大于平稳运行条件下钢球的打滑;始终位于非承载区钢球的最大打滑速度大于始终位于承载区内钢球,不断进出承载区钢球位于两者之间;随着游隙的增加,钢球的打滑先急剧增加后缓慢增加;增加轴承的变速时间、径向载荷和润滑剂拖动系数以及降低套圈稳定速度均有利于减小摆动过程中钢球的打滑。

关键词: 摆动工况, 深沟球轴承, 动力学, 打滑

Abstract: Rolling bearings are one of the most important components in rotating machinery systems. The skidding of bearings withstanding frequent oscillating conditions seriously affects the dynamic characteristics of the bearings, resulting in early failure. Based on the theory of rolling bearing dynamics, the dynamic differential equations of oscillating deep groove ball bearings are established, and solved by the predictive-correction (Gear stiff, GSTIFF) variable step integration algorithm. Skidding characteristics of the ball which is always in the loading area, continuous access to the loading area and always in the non-loading area are studied. The results show that the skidding of the ball under the oscillating condition is obviously larger than that under the smooth running condition; the maximum skidding of the ball always in the non-loading area is larger than that always in the loading area, and of which the ball continuously enters and exits is in between. As the clearance increases, the skidding of the ball increases sharply and then increases slowly. The increase of the shifting time, radial load and lubricant coefficient, as well as the decrease of stability speed is beneficial to reduce the skidding of the ball during the oscillating motion.

Key words: oscillating, deep groove ball bearing, dynamics, skidding

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