Reference efficiency of a pair of gear drive without planetary motion is the base to calculate efficiency of the whole planetary geartrain.
齿轮的基本啮合效率是计算行星齿轮传动效率的基础。
2
In this paper, tie calculation method of the mechanical efficiency of the geartrain has been studied, and finally the calculation formula has been obtained and analyzed.
本文简明地论述了这种轮系的机械效率的计算方法，推导出了效率的计算公式，并进行了分析。
3
About the problem how to calculate efficiency of differential geartrain, in this paper, there is a new idea of "extending a differential gear train to an equivalent closed planetary gear train".