基于速度图解法的辛普森式行星齿轮机构传动方案分析

Analysis of transmission scheme of simpson planetary gear mechanism based on velocity graphic method

利用速度图解法绘制3个等速点的线速度矢量,以直观了解机构中各元件的转动状态,并总结了利用速度图解法分析辛普森式行星齿轮机构的原则;利用相似三角形原理计算各传动方案的传动比,通过对速度图解法与解析法传动比的比较分析,验证了该方法和过程的正确性。

The movement of each element ~n the mechanism can be intuitively understood through drawing the linear velocity vectors of three constant velocity points is introduced in this paper. The principle is summarized for applying velocity graphic method to analyze Simpson planetary gear mechanism, which provides guidance for analysis procedure. The similar triangle principle is used to calculated transmission ratio of each transmission scheme in the linear velocity vector diagram, and the correctness of the analysis method and the process is verified by the transmission ratio calculated by velocity graphic method and analytic method.