均布和不均布行星齿轮的统一装配条件  

Unified Assembly Condition of Evenly and Non-evenly Spaced Planet Gear

作　　者：薛焕樟 Xue Huanzhang(Department of Electrical Engineering,Zhaoqing Technician Institute,Zhaoqing 526060,China)

机构地区：[1]肇庆市技师学院电气工程系,广东肇庆526060

出　　处：《机械传动》2020年第12期43-48,共6页Journal of Mechanical Transmission

摘　　要：以NW型行星齿轮机构为例,推导出行星齿轮的统一装配条件表达式。首先,确定双联行星齿轮的最小非零齿间错位角;其次,根据行星齿轮机构的运动方程式分别计算两个独立行星齿轮的自转角度值,取这两个自转角度值之差作为装配错位角;装配错位角是最小非零齿间错位角的整数倍时行星齿轮才可以被正确装配,从而得到适用于所有行星齿轮机构均布或不均布行星齿轮的统一装配条件表达式;最后,通过2个实例介绍不均布行星齿轮的装配方法。所提出的表达式扩充和完善了行星齿轮装配理论,使行星齿轮机构齿数选择范围更大,对不均布行星齿轮机构的装配应用具有一定的理论指导和工程实用意义。A unified assembly condition formula is derived for planet gears,taking the NW planetary gear train as an example.Firstly,the minimum non-zero misalignment angle between the two teeth of compound planetary gears is determined.Secondly,according to the kinematics equation of the planetary gear mechanism,the rotation angle(the angle of the planet gear rotates about its own shaft)of the two independent planet gears are calculated separately,and the difference between the two rotation angle is used as the assembly misalignment angle.The planet gear(s)can be correctly assembled only if the assembly misalignment angle is an integer multiple of the minimum non-zero misalignment angle between the two teeth,so that a unified assembly condition formula is obtained for planet gear(s)with even or uneven distribution of all types of planetary gear mechanism.Finally,the assembly method of uneven distributed planet gears is introduced through two examples.The expression proposed expands and improves the theory of planet gear assembly,more wider ranges of gear teeth for the planetary gear train are available to select,and has certain theoretical guidance and engineering practical significance for the assembly and application of uneven distribution planet gear mechanism.

关 键 词：行星齿轮 装配条件 不均布 均布 

分 类 号：TH132.425[机械工程—机械制造及自动化]