孔销式少齿差行星增速器的压力角计算方法及其影响因素

Calculation Method and Influence Factors Analysis of Pressure Angle of Hole- pin Type Few Teeth Difference Planet Gear Speed Increaser

针对孔销式少齿差行星轮增速器的工作原理和结构特点,分析了运动传递过程中不同结构参数时销轴与行星轮上销孔的接触情况。根据接触传递过程中的几何关系,推导出了销孔对销轴的压力角计算公式。选取不同的几何结构参数,计算并绘制了压力角的变化曲线,进而找出压力角与转轴偏心量、销孔回转半径、销轴直径以及销孔直径对系统压力角的影响关系。计算方法与分析结果可用以指导少齿差行星轮增速器传动机构的设计,优化系统传力特性。

In view of the operating principles and structural characteristics of hole-pin type few teeth difference planet gear speed increaser,the contacting conditions of pin and pin hole during the operating process for various structure parameters are analyzed. Based on the geometrical relationship during operating process,the pressure angle analytic formula between pin and pin hole is derived. The curve of pressure angle is calculated and drawn by selecting different design parameters to find the relationships of pressure angle with rotor eccentricity,the turning radius of pin hole,diameter of pin and pin hole. The calculation methods and analytical results could guide the structure design of hole-pin type few teeth difference planet-gear speed increaser,optimization of the system force transmission characteristic.