RV减速器摆线针轮传动可靠性和灵敏度分析  

Reliability and Sensitivity Analysis of Cycloidal Needle Gear Transmission of RV Reducer

作　　者：周坤 叶楠 程澄 高新 ZHOU Kun;YE Nan;CHENG Cheng;GAO Xin(State Key Laboratory of Reliability and Intelligence of Electrical Equipment Jointly Established by Ministry and Province,Tianjin 300401,China;School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]省部共建电工装备可靠性与智能化国家重点实验室,天津300401 [2]河北工业大学机械工程学院,天津300401

出　　处：《机械设计与制造》2024年第7期372-378,共7页Machinery Design & Manufacture

基　　金：河北省教育厅基金重点项目(ZD2020180)。

摘　　要：摆线针轮啮合传动是RV减速器高负载的关键因素,也是RV减速器的核心结构。根据摆线轮齿廓方程,在SolidWorks中建立摆线轮三维模型,通过有限元方法对摆线针轮进行瞬态动力学分析,得到了摆线针轮啮合传动时的最大等效应力场。建立摆线针轮主要参数与最大等效应力的响应面模型,分析了摆线针轮啮合传动时最大等效应力分布函数以及最大等效应力对各主要参数的敏感性,完成了摆线针轮的可靠性研究。结果表明:摆线针轮啮合传动过程中最大等效应力出现在摆线轮凹齿廓处,并且小于材料的许用应力,可靠性较高;最大等效应力对针齿分布圆直径敏感程度最大。为RV减速器的结构优化设计以及可靠性强化提供了理论基础。Cycloid needle gear meshing transmission is the key factor of high load of RV reducer,and it is also the core structure of RV reducer.In accordance with the tooth profile equation of cycloid gear,a three-dimensional model of cycloid gear is established in SolidWorks.Using finite element method carries out the transient dynamic analysis of cycloid needle gear,and the maximum equivalent stress and distribution position of cycloid needle gear are obtained.The response surface model of the main parameters and the maximum equivalent stress of cycloid needle gear are established,the distribution function of the maximum equivalent stress of cycloid needle gear and the sensitivity of the main parameters to the maximum equivalent stress are obtained,and the reliability of cycloid needle gear is analyzed.Experimental results show that the maximum equivalent stress occurs at the concave tooth profile of the cycloid needle gear in the meshing transmission process,which is less than the allowable stress of the material and has high reliability.The maximum equivalent stress is most sensitive to the diameter of the needle tooth distribution circle.Providing a theoretical basis for the optimization design and the improvement of reliability of RV reducer.

关 键 词：摆线针轮 等效应力 响应面 敏感度 可靠性 

分 类 号：TH16[机械工程—机械制造及自动化] TP391.9[自动化与计算机技术—计算机应用技术]