RV减速器主轴承摩擦力矩理论计算及特性分析

发布时间：2018-01-10 02:21

本文关键词：RV减速器主轴承摩擦力矩理论计算及特性分析　出处：《浙江大学学报(工学版)》2017年10期 　论文类型：期刊论文

【摘要】：针对RV减速器的精密运转工况而要求低摩擦力矩的问题,在Luc Houpert工作的基础上,通过基于达朗贝尔原理的拟静力学模型,重新推导了更准确的轴承接触椭圆内纯滚动线位置与摩擦力矩的求解方程,给出更准确的基于纯滚动线位置的摩擦力矩计算公式.对型号为H76/182的RV减速器主轴承的摩擦力矩的特性进行理论计算分析.从结论可知,轴承的总摩擦力矩随着内、外沟曲率系数的差值的增大而增大,沟曲率系数的增大会导致轴承总摩擦力矩的减小.对不同沟曲率系数下摩擦力矩的变化进行定性分析.对得到的RV减速器主轴承的摩擦力矩计算结果与采用SKF、Luc Houpert方法得到的结果进行比较与实验验证.结果显示,提出的摩擦力矩计算公式更加接近摩擦力矩试验机的测量结果,计算结果更精确.
[Abstract]:Aiming at the problem that the RV reducer needs low friction torque under the precise operating condition, based on the work of Luc Houpert, the quasi-statics model based on Darembert's principle is adopted. A more accurate equation of the position of the pure rolling line and the friction moment in the contact ellipse of the bearing is derived again. A more accurate formula for calculating friction torque based on the position of pure rolling line is given. The characteristics of friction torque of main bearing of RV reducer of H76 / 182 are calculated and analyzed theoretically. The total friction torque of the bearing increases with the increase of the difference of the outer groove curvature coefficient. The increase of groove curvature coefficient will lead to the decrease of total friction torque of bearing. The variation of friction moment under different groove curvature coefficient is qualitatively analyzed. The calculated results of friction torque of main bearing of RV reducer and S. KF. The results obtained by Luc Houpert method are compared and verified by experiments. The results show that the proposed formula is closer to the measured results of the friction torque testing machine and the calculated results are more accurate.
【作者单位】：西安交通大学机械制造系统工程国家重点实验室;
【基金】：国家“863”高技术研究发展计划资助项目(2015AA043004)
【分类号】：TH132.46;TH133.3
【正文快照】： RV减速器作为工业机器人专用的一种精密减速器,具有定位精度高、运转灵活、长时工作稳定的特点.RV减速器作为一种传递扭矩的二级精密减速器,定位精度高、运转灵活意味着RV减速器主轴承必须具有低摩擦力矩的特性.国内外学者对滚动轴承摩擦力矩作过许多研究.Palmgren[1]通过对各

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