在考虑内啮合齿轮副内外齿廓理论间隙、制造误差及轮齿弹性变形的基础上 ,建立了三环减速器实际接触齿对数及各齿间载荷分配的理论分析模型 ,计算出在额定载荷工况下的实际接触齿对数及各齿上的载荷分配 ,并利用应变测试方法进行了相应的实验研究 ,验证了理论分析计算的结果 ,为三环减速器承载能力的估算、齿轮几何参数的确定及零部件的强度分析计算提供了理论依据 Based on the theoretical gap, manufacturing error and gear tooth deformation of internal and external gear pairs, the theoretical analysis model of actual contact tooth number and interdental load distribution of tricyclic reducer was established, The actual number of contact teeth under the conditions and the distribution of the load on each tooth, and the use of strain test method for the corresponding experimental study to verify the theoretical analysis and calculation results for the three-ring reducer bearing capacity estimation, gear geometry parameters The determination and strength analysis and calculation of components provide the theoretical basis