中文摘要：

为估算复式滚动活齿传动的传动效率，对其传动原理、结构特性进行了分析，给出了内齿轮的齿形方程及便于应用的啮合副受力分析算法．分析了滚动活齿的啮合效率，并结合传动结构的运动学特征给出了总传动效率的计算公式．该公式可用于复式滚动活齿传动的效率估算。

英文摘要：

In order to estimate the drive efficiency of the compound rolling teeth transmission, its kinematic principle and structure character are investigated, and then the teeth profile equation of inner gear and an effectual method for meshing force analysis are proposed. Meshing efficiency of the rolling teeth is analyzed, and companied with an analytic formula calculating, the total drive efficiency of the compound rolling teeth transmission is presented. The presented formula can estimate the drive efficiency of compound rolling teeth transmission effectively.