双输入行星减速器的回差分析

Return Difference Analysis of Two- input Planetary Gear Reducer

介绍了某型航天飞行器舵机系统传动装置中的双输入行星减速器,通过考虑齿厚偏差、中心距偏差和轴承径向游隙对回差的影响,定量分析了双输入行星减速器的回差,给出其空程回差的计算表达式。根据回差分析,采用了配凑中心距的方法控制样机回差精度,并对样机进行回差测试,实验结果与预期一致。

A certain type of two- input planetary gear of spacecraft steering gear system is described. By considering the influence of tooth thickness deviation,central distance deviation and bearing radial clearance on the backlash,the quantitative analysis of the two- input planetary gear return difference is carried out,the calculation expression of its return difference is given. According to the return difference analysis,by using the method with matching center distance to control return difference precision of prototype,through the test of prototype return difference,the experimental results are consistent with expectation.