RV減速機之力量分析與有限元素模擬

Abstract

RV減速機為一結合擺線齒輪系及行星齒輪系之減速機構，除了具有傳統擺線減速機之特性，如高減速比、高扭力及高傳動效率等優點，更可透過與行星齒輪之組合，相較傳統之擺線減速機，可以得到更多樣之減速比與較高的剛性。本文首先介紹RV減速機之構造及齒形創成；接著，本文提出一種簡化之模型，此簡化模型與RV原型具有相同的運動。藉此模型，本文探討RV減速機之軸承負載，以及行星齒輪系上正齒輪相位誤差對軸承壽命之影響。最後本文利用Ansys 軟體模擬擺線齒形與針齒接觸的負載。

The RV gear reducer is a type of speed reduction mechanism that contains cycloidal gears and involute gears. In addition to the characteristics of the traditional cycloidal gear drive, such as high reduction ratio, high torque and high transmission efficiency, due to combination of planetary gears, the RV gear reducer can obtain more kind of reduction ratios and higher rigidity than traditional cycloidal gear drive. In this thesis, firstly, the structure of RV gear reducer is introduced. Then, a simplified model having the same kinematic structure as the original one is proposed. Based on this model, we analyze the bearing load and phase errors. On the involute gears. Finally, contact force analysis between cycloidal gear and pins is analyzed by ANSYS software.