RV减速器摆线针轮传动部分啮合特性仿真分析

Simulation Analysis of Meshing Characteristic for Cycloid Meshing Drive of RV Reducer

摆线针轮传动部分是RV减速器的关键结构,摆线针轮传动综合啮合刚度的确定是进一步研究RV减速器动态特性的基础。基于Hertz接触理论推导了摆线针轮传动单齿对的等效接触刚度公式,确立了单齿对接触刚度的求解参数,建立了含有以同时参与啮合针齿数为叠加参数的摆线针轮综合刚度模型,为确定同时参与啮合的针齿齿数,在计及摆线轮修形、针轮中心圆直径误差并将摆线轮进行柔性处理的情况下,基于ADAMS对某型RV减速器整机进行了动态仿真;仿真结果直观显示了同时参与啮合的针齿数以及针齿受力受负载的影响效果。

The cycloid pin wheel drive is essential to RV reducer. It is the basic point to determine the contact stiffness of cycloid and pin wheel. The equivalent contact stiffness is calculated based on Hertz contact theory. The parameters to solve the contact stiffness is checked and the stiffness model with teeth number in meshing simultaneously as a parameter is established. The dynamics simulation of RV reducer is processed based ADAMS to determine the pin numbers in meshing in consideration of modification of cycloid and dimension error of pin-wheel circle diameter,furthermore,the model of cycloid is treated as flexible body. It can be intuitive to observe the relations between load and number of pins in meshing or pin force.