考虑摆线轮齿距误差的RV减速器转臂轴承寿命评估  

Life Calculation of Swivel Arm Bearing of RV Reducer Considering Pitch Error of Cycloidal Gear

作　　者：李星 金守峰[1] 宿月文 董雅文[1] 赫森奥 贺晶 LI Xing;JIN Shoufeng;SU Yuewen;DONG Yawen;HE Senao;HE Jing(School of Mechanical and Electrical Engineering,Xi′an Polytechnic University,Xi′an 710600,China;Shaanxi Province Key Laboratory of Advanced Manufacturing and Evaluation of Robot Key Components,Baoji University of Arts and Sciences,Baoji,Shaanxi 721016,China)

机构地区：[1]西安工程大学机电工程学院,陕西西安710600 [2]宝鸡文理学院陕西省机器人关键零部件先进制造与评估省市共建重点实验室,陕西宝鸡721016

出　　处：《轻工机械》2023年第6期58-65,共8页Light Industry Machinery

基　　金：陕西省重点研发计划项目(2021GY-326);国家级大学生创新创业项目(202210709041);陕西省大学生创新创业项目(S202210709085)。

摘　　要：针对RV减速器的转臂轴承易失效的问题,课题组以RV-110E减速器为研究对象,对转臂轴承进行受力分析,采用ADAMS软件建立RV减速器多体动力学模型,以Lundberg-Palmgren理论为基础,计算转臂轴承的寿命,分析摆线轮齿距误差对转臂轴承寿命的影响规律。研究结果表明:转臂轴承的载荷合力与分力呈周期性变化,同一摆线轮上的转臂轴承承受的载荷大小和周期相同,相位差为120°,转臂轴承承受的最大载荷为8 094.6 N,最小载荷为1 371.2 N;转臂轴承的理论寿命为4 629.0 h,仿真寿命为2 505.6 h;齿距误差值开始值为正时,轴承的载荷力比无误差大,反之则小;齿距误差值越大,转臂轴承的载荷力峰值振幅越宽,转臂轴承的寿命稳定性高,反之亦然。Aiming at the problem that the swivel arm bearing of RV reducer being prone to failure,the RV-110E reducer was used as the research object to analyze the force on the swivel arm bearing.ADAMS software was used to establish the multi-body dynamics model of RV reducer.And Lundberg-Palmgren was used as the theoretical basis to calculate the life of swivel arm bearing,and analyze the influence of cycloid wheel pitch error on the life of swivel arm bearing.The results show that:the resultant force and component force of the loading force on the swivel arm bearing vary periodically,the loading force on the swivel arm bearing on the same cycloid wheel has the same magnitude and period,and the phase difference is 120°,the maximum loading force on the swivel arm bearing is 8094.6 N,and the minimum loading force is 1371.2 N;the theoretical life of the swivel arm bearing is 4629.0 h,and the simulated life is 2505.6 h;when the starting value of the tooth pitch error is positive,the loading force of the bearing is larger than that without error,and vice versa;the larger the tooth pitch error,the wider the amplitude of the peak loading force of the swivel arm bearing,the higher the life stability of the swivel arm bearing,and vice versa.

关 键 词：RV减速器 载荷力 转臂轴承 摆线轮齿距误差 

分 类 号：TH132.46[机械工程—机械制造及自动化] TH133.3