三球销式等速万向节受力及仿真分析

THE FORCE AND SIMULATION ANALYSIS OF TRIPOD CONSTANT VELOCITY UNIVERSAL JOINT

基于三球销式等速万向节的空间立体几何模型,在考虑偏心距的情况下,分析计算了球环所受的法向力、圆周力,及其随转角和摆角的变化规律,以及传动过程中由摩擦力所产生的轴向窜动力、径向力和偏转扭矩。在此基础上,基于Herzt接触理论及修正的库伦摩擦模型,对上述受力进行了Adams动力学仿真验证。结果表明:仿真结果和理论计算结果基本吻合,三球销式等速万向节的轴向窜动力、径向力和偏转扭矩会随着摆角的变化而变化,并且在有摆角的条件下,这些力会随转角的变化而变化。

Based on the three-dimensional model of tripod constant velocity universal joint, considering the offset of the cases, analyzed and calculated the normal force, peripheral force of the roller, and its change rule with rotating angle and swing angle, and also analyzed the axial force, radial force and deflection torque generated by the friction during the transmission. And then, based on the Herzt contact theory and revised coulomb friction model, using ADAMS to do dynamics simulation analysis of those force, The result show that simulation results generally align with theoretical calculation results, the axial force, radial force and deflection torque changed with the swing angle, and under the conditional of a swing angle, those force changed with the rational angle.