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Qualitative Analysis and Calculation of Planetary Gear Mechanisms Based on the Method of Speed Triangle

Starting with the degree of freedom, constraints, instantaneous center and other basic knowledge points, the size of transmission ratio and direction of a single-row planetary gear mechanism were qualitatively analyzed and calculated by using the method of speed triangle, and a new approach to the kinematic analysis on planetary gear mechanisms is provided after eight kinds of single-row planetary gear transmission schemes have been summed up.