A reduction mechanism for a robot joint module

Abstract

This utility model discloses a reduction mechanism for a robot joint module, including a motor, a primary planetary gear system, and a secondary planetary gear system. The motor includes a stator housing, with a primary sun gear embedded within the stator housing. In the axial length direction, both the primary sun gear and the primary planetary gears are effectively hidden within the stator housing. Simultaneously, a primary internal gear ring is directly disposed on the inner wall of the stator housing, effectively accommodating the axial length of the primary internal gear ring within the stator housing as well. Compared to previous axial length-stacking installation methods, this utility model employs a concealed installation method, resulting in a compact structure and significantly reducing the axial dimensions of the joint module, which is beneficial for simplifying and miniaturizing robot joints. Furthermore, this utility model achieves the sharing of some parts, reducing the number of components, lowering costs, and facilitating large-scale application in robot modules.

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