球笼式等速万向节的摩擦力动力学仿真研究  

Research on Friction Dynamics Simulation of Ball Cage Constant Velocity Joint

作　　者：李佳明 卢曦[1] Li Jiaming;Lu Xi(College of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械工程学院

出　　处：《农业装备与车辆工程》2020年第1期89-93,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：球笼式等速万向节各部件之间相对运动会产生摩擦力,万向节各部件之间的摩擦力通过理论计算十分困难,需要通过动力学仿真分析计算万向节各部件之间的摩擦力的问题。鉴于此,主要研究了不同轴间角和转矩下各个部件之间相对运动时的摩擦力大小。首先,建立了球笼式等速万向节在不同轴间角下的动力学仿真模型,并通过计算确定了不同接触对之间的各接触力参数。然后,通过动力学仿真软件,分析了轴间角和转矩分别对内套沟道与钢球、外套沟道与钢球、内套外球面与保持架内球面、保持架外球面与外套内球面之间摩擦力的影响。结果表明:轴间角越大,对摩擦力大小的影响趋势越大;转矩对各部件之间的摩擦力数值的影响近似呈线性变化。The relative motion between the components of the ball cage constant velocity joint produces friction.The friction between the components of the universal joint is very difficult to calculate by theory.Therefore,it is necessary to calculate the friction between the components of the joint by dynamics simulation.This paper mainly studies the frictional force between various components under different axial angles and torques in relative movement.Firstly,the dynamic simulation model of the ball cage constant velocity joint under different axial angles is established,and the contact force parameters between different contact pairs are determined by calculation.Then,through dynamics simulation software,the effect of inter-axis angle and torque on the friction between the inner sleeve channel and the steel ball,the outer casing channel and the steel ball,the inner spherical outer surface and the inner spherical surface of the cage,the outer spherical surface of the cage and the outer casing are analyzed.The results show that the larger the inter-axis angle,the greater the influence on the frictional force;the effect of the torque on the friction value between the components changes linearly.

关 键 词：摩擦力 动力学仿真 轴间角 相对运动 

分 类 号：U463.216[机械工程—车辆工程]