基于有限元建模的RV减速器摆线针轮承载啮合特性分析  

ANALYSIS OF LOAD⁃BEARING MESHING CHARACTERISTICS OF CYCLOIDAL PINWHEEL OF RV REDUCER BASED ON FINITE ELEMENT MODELING

作　　者：梁强[1,2] 程澄 史宝军 LIANG Qiang;CHENG Cheng;SHI BaoJun(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300401,China;Hebei Key Laboratory of Robot Sensing and Human-Robot Integration,School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学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河北省机器人感知与人机融合重点实验室,天津300401

出　　处：《机械强度》2023年第3期653-661,共9页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(U20A20201);河北省重点研发计划(20311803D);河北省自然科学基金项目(E2019202338)资助。

摘　　要：为了研究负载变化对RV减速器摆线针轮啮合特性的影响,考虑摆线轮齿廓修形,利用UG建立摆线针轮机构的三维模型,运用Ansys的瞬态动力学模块分析了摆线针轮在一个啮合传动周期内的啮合齿对数和啮合应力变化情况,并将仿真与理论的接触应力进行了对比。结果表明,仿真与理论的接触应力在整体上趋势一致;摆线针轮的啮合齿对数和啮合应力值均呈现周期性规律,且随着负载的增大而增加;接触应力和等效应力与啮合齿对数的变化趋势相反,摆线针轮啮合齿对数越多,其啮合应力越小。针齿在长度方向上的等效应力随负载增大而增大,应力有均匀分布的趋势但变化较小。有限元分析对RV减速器的设计、分析和制造有一定的参考意义。In order to study the influence of load change on the meshing characteristics of cycloid pinwheel of RV reducer,considering the modification of cycloid tooth profile,the three⁃dimensional model of cycloid pinwheel mechanism was established by UG.The changes of meshing tooth pairs and meshing stress of cycloid pinwheel in a meshing transmission cycle were analyzed by using the transient dynamics module of Ansys,and the simulation was compared with the theoretical contact stress.Results show that the overall trend of contact stress between simulation and theory is consistent,the number of meshing teeth and meshing stress of cycloid pinwheel show a periodic law,and increase with the increase of load.The change trend of contact stress and equivalent stress is opposite to the number of meshing teeth,the more the number of meshing teeth,the smaller the meshing stress.The equivalent stress of the needle tooth in the length direction increases with the increase of load,and the stress has a trend of uniform distribution,but the change is small.The finite element analysis has certain reference significance for the design,analysis and manufacture of RV reducer.

关 键 词：摆线针轮 ANSYS 瞬态动力学 啮合特性 接触应力 

分 类 号：TH132[机械工程—机械制造及自动化]