精密RV减速器中针齿壳模态振动特性研究  

Vibration Modal Characteristics of the Pin Shell of the RV Reducer under Different Working States

作　　者：杨蒙恩 罗利敏 贡林欢 励晨 李国平[1] 娄军强[1] YANG Meng-en;LUO Li-min;GONG Lin-huan;LI Chen;LI Guo-ping;LOU Jun-qiang(Zhejiang Provincial Key Lab of Part Rolling Technology,Ningbo University,Ningbo Zhejiang 315211,China;Ningbo Zhongda Leader Intelligent Transmission Co.,Ltd,Ningbo Zhejiang 315301,China)

机构地区：[1]宁波大学浙江省零件轧制与成型技术重点实验室,浙江宁波315211 [2]宁波中大力德智能传动股份有限公司,浙江宁波315301

出　　处：《机械研究与应用》2021年第1期37-40,共4页Mechanical Research & Application

基　　金：宁波市科技创新2025重大专项:机器人系列化高精度RV减速器产品性能优化(编号:2018B10007&2019B10078&2018B10005)。

摘　　要：精密RV减速器中摆线轮与针齿壳的啮合传动状态直接决定了整个减速器整机的传动性能,而核心零件针齿壳的模态振动特性对整机动态特性具有重要影响。在建立RV减速器三维模型的基础上,采用有限元法分别分析了针齿壳在自由、轴承约束以及啮合工作三种状态下的模态特性,得到了针齿壳在三种约束状态下的频率分布和振型特性。分析结果表明:在轴承约束和摆线轮约束共同作用的啮合工作状态下,针齿壳模态特性更符合实际工作状态,其固有频率显著提升,且各阶振型也发生了相应变化。该项研究为RV减速器系统的动态特性和啮合特性分析提供了有益参考。The transmission characteristics of the precision RV reducer is mainly determined by the mesh state between the cycloid gear and pin shell parts,and vibration modal characteristics of the pin shell have important effects on the dynamic behavior of the RV reducer.Based on the 3D model of the RV reducer,the vibration modal characteristics of the pin shell considering three states,namely the free,bearing support and mesh states,are obtained by using the finite element method.The simulation results show that the modal characteristics of the cycloid gear in the meshing state matches better with the working mode of the RV reducer than the other states;The natural frequencies of the pin shell increase remarkably,and the vibration modes are changed accordingly.These works are useful for analysis on the dynamic transmission behavior of the RV reducer.

关 键 词：RV减速器 针齿壳 啮合状态 模态分析 有限元法 

分 类 号：TG457.23[金属学及工艺—焊接]