高速圆柱滚子轴承保持架运行稳定性分析  

Operational stability analysis for cage of high-speed cylindrical roller bearings

作　　者：王自彬 邓四二[1,2] 张文虎 黄晓敏 WANG Zibin;DENG Si’er;ZHANG Wenhu;HUANG Xiaomin(School of Mechatronics, Henan University of Science and Technology, Luoyang 471003, China;Collaborative Innovation Center of Major Machine Manufacturing in Liaoning, Dalian 116024, China;School of Mechanical Engineering, Chongqing Industry Polytechnic College, Chongqing 401120, China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]辽宁重大装备制造协同创新中心,辽宁大连116024 [3]重庆工业职业技术学院机械工程学院,重庆401120

出　　处：《振动与冲击》2019年第9期100-108,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金(U1404514);国家"十二五"科技攻关项目(JPPT-ZCGX1-1);河南省科技创新杰出人才(144200510020)

摘　　要：基于滚动轴承动力学理论,建立了高速圆柱滚子轴承的非线性动力学微分方程组,采用预估-校正的GSTIFF(Gear stiff)变步长积分算法对其进行求解,使用盒维数评价保持架质心轨迹的混乱程度,研究了保持架间隙比、轴承转速、轴承径向载荷、轴承径向游隙以及滚子个数等因素对保持架运行稳定性的影响。研究结果表明:盒维数能够发现相似保持架心轨迹之间的差别,并对保持架稳定性进行量化描述;较大的保持架间隙比不利于保持架的稳定运行,存在最佳间隙比使保持架质心轨迹涡动效果最好,保持架运行最稳定;内圈转速较低时,保持架质心不发生涡动,质心轨迹非常混乱,保持架运行不稳定;随着转速、滚子个数的增加,保持架运行稳定性增加;随着径向载荷、径向游隙的增加,保持架运行稳定性先增大后减小。Based on the dynamics theory of rolling bearings, nonlinear dynamic differential equations for a high-speed cylindrical roller bearing were established and solved with the prediction-correction GSTIFF (Gear stiff) integration algorithm with variable steps. The box dimension was used to evaluate disorder level of cage mass center trajectory. Effects of cage clearance ratio, bearing rotating speed, bearing radial load, bearing radial clearance and roller number on cage operational stability were investigated. The results showed that the box dimension can be used to find the difference between similar cage mass center trajectories and quantitatively describe cage operational stability;larger cage clearance ratio is not helpful for cage stable operation, and there is an optimal clearance ratio to make cage mass center trajectories’ whirl effect be the best and cage operation be the most stable;when inner ring rotating speed is lower, cage mass center doesn’t whirl and cage mass center trajectory is very disorder, cage operation is unstable;with increase in rotating speed and roller number, cage operational stability increases;with increase in radial load and radial internal clearance, cage operational stability increases firstly and then decreases.

关 键 词：圆柱滚子轴承 保持架运行稳定性 动力学 盒维数 保持架质心轨迹 

分 类 号：TH133[机械工程—机械制造及自动化]