多行星轮传动机构(见图1)齿轮齿数的选择问题是相当困难的,由于所选择的齿数要满足许多通常是相互矛盾的条件。除了要保证给定的传动比外,还应满足下列条件同轴条件装配条件 Z_a+Z_b=kn_p(2) 邻接条件以及考虑结构系列和工艺条件的要求。当转臂H固定时,传动比公式i_ab~H系中心轮b的齿数对轮a的齿数之比值;g表示行星轮; The problem of selecting the number of gear teeth in a multi-planetary gear train (see Figure 1) is quite difficult due to the number of teeth selected to satisfy many of the often conflicting conditions. In addition to guaranteeing a given gear ratio, the following conditions should also be met: Coaxial condition Assembly condition Z_a + Z_b = kn_p (2) Adjacent conditions and the requirements of the structural series and the process conditions. When the boom H is fixed, the transmission ratio formula i_ab ~ H is the ratio of the number of teeth of the center wheel b to the number of teeth of the wheel a; g is the planet wheel;