考虑滚道缺陷的圆柱滚子轴承保持架振动特性  

Vibration Characteristics of Cylindrical Roller Bearing CagesConsidering Raceway Defects

作　　者：张文博[1] 杨海生[1] 崔永存[1,2] 邓四二 尉询楷[3] ZHANG Wenbo;YANG Haisheng;CUI Yongcun;DENG Si’er;WEI Xunkai(School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang 471003,China;Changzhou NRB Corporation,Changzhou 213022,China;Beijing Aeronautical Engineering Technology Research Center,Beijing 100076,China)

机构地区：[1]河南科技大学机电工程学院,河南洛阳471003 [2]常州光洋轴承有限公司,江苏常州213022 [3]北京航空工程技术研究中心,北京100076

出　　处：《轴承》2024年第3期28-35,共8页Bearing

基　　金：国家自然科学基金联合基金资助项目(U1404514);国家科技重大专项(J2019-IV-0004-0071)。

摘　　要：基于滚动轴承多体动力学理论,以滚子经过滚道缺陷区域时产生的附加位移表征故障,建立轴承滚道缺陷动力学模型。考虑滚子进出缺陷区域时与滚道间接触载荷的变化,建立圆柱滚子轴承动力学微分方程组并求解,研究滚道缺陷时保持架振动响应规律。结果表明:与正常轴承相比,滚道缺陷会导致保持架与滚子间碰撞力增大且接触频率增加,同时保持架打滑率增大;随缺陷宽度增大,内滚道缺陷时保持架振动加速度级逐渐增加,外滚道缺陷时保持架振动加速度级先减小后增加,缺陷宽度大于1 mm后,内滚道缺陷时保持架的振动加速度级明显更大。Based on multibody dynamics theory of rolling bearings,the faults are characterized by additional displacement generated when the rollers pass through defect area of raceway,and a dynamic model of bearing raceway defect faults is established.Considering change of contact load between rollers and raceway when the rollers enter and exit the defect area,the dynamic differential equations of cylindrical roller bearings are established and solved.The vibration response law of cages is studied when raceway defects occur.The results show that compared with normal bearings,the raceway defects lead to increase of collision force and contact frequency between cages and rollers,the slip rate of cages increases;with the increase of defect width,the vibration acceleration level of cages gradually increases when the inner raceway is defective,while the vibration acceleration level of cages decreases first and then increases when the outer raceway is defective,when the defect width is larger than 1 mm,the vibration acceleration level of cages is obviously larger when the inner raceway is defective.

关 键 词：滚动轴承 圆柱滚子轴承 缺陷 动力学模型 振动 保持架 

分 类 号：TH133.33[机械工程—机械制造及自动化] TH117.1