Method and manufacturing method of multi-linkage planetary gear speed changing mechanism, and multi-linkage planetary gear speed changing mechanism

A design method of a multi-linkage planetary gear speed changing mechanism, wherein a plurality of coaxial planetary gears form one set, a tooth aligning mechanism and a plurality of planetary gears on a same radial plane form one linkage, and the design method comprising the following steps of:

• taking any planetary gear set as a first planetary gear set, and subjecting the planetary gear set to tooth alignment with the tooth aligning mechanism to determine a relative tooth aligning position of the first planetary gear set;
• and setting a baseline position of each planetary gear set as a 0° line position, and a tooth valley center of the planetary gear of each linkage in the first planetary gear are set corresponding to the baseline position;
• determining the baseline position of each planetary gear set as a tooth aligning position of each planetary gear set, and calculating a tooth difference angle position of a planetary gear of each linkage in each planetary gear set relative to the baseline position;
• and
• taking the relative tooth aligning position of the first planetary gear set as a calculation starting position, and calculating a relative tooth aligning position of each planetary gear set.