RV减速器摆线针轮齿形参数对啮合刚度的影响

Influence of Tooth Profile of Cycloidal Pin of RV Reducer on Meshing Stiffness

为研究摆线针轮齿形参数对啮合刚度的影响,基于Hertz理论构建了摆线针轮传动副的啮合刚度模型,对此模型进行理论计算与啮合仿真分析,从而得到啮合刚度随时间变化的曲线,明确此方法的正确性。并结合提出的可行方法以及改变摆线针轮的重要参数,利用Workbench瞬态动力学分析模块仿真后导入到Matlab软件中,得到针齿半径等重要参数对啮合刚度的影响规律。结果表明:针齿半径对啮合刚度影响较小,而针齿与摆线轮的啮合偏心距对摆线针轮啮合刚度影响较大,在实际工程应用中需着重控制。

In order to study the influence of the tooth shape parameters of the cycloidal pin on the meshing stiffness,the meshing stiffness model of the cycloidal pinion drive pair is constructed based on Hertz theory.The theoretical calculation and meshing simulation analysis of the model are carried out to obtain the meshing stiffness versus time curve.To clarify the correctness of this method,combined with the proposed feasible method and changing the important parameters of the cycloidal pin wheel,the Workbench transient dynamics module is simulated and imported into Matlab software to obtain the influence of important parameters such as the needle tooth radius on the meshing stiffness.The results show that the pin tooth radius has little effect on the meshing stiffness,and the meshing eccentricity of the pin gear and the cycloidal wheel has a great influence on the meshing pin gear stiffness,which needs to be controlled in practical engineering applications.