speed reduction mechanism

Abstract

This invention discloses a speed reduction mechanism comprising a base, a rotating part, a first transmission part, a power part, and a second transmission part. The rotating part is rotatably mounted on the base and has a virtual first axis as its rotation center. The first transmission part has N teeth, which are distributed annularly on the rotating part with the first axis as its curvature center, and the free ends of each tooth extend along the first axis and in a direction away from the rotating part; wherein N is a positive integer. The power part is mounted on the base and includes an input shaft extending along a virtual second axis. The second axis is perpendicular to the first axis; the second transmission part is disposed on the input shaft, and the second transmission part has M cylinders, which are spaced apart from each other and arranged in a ring with the second axis as the center of curvature, and the column axis of each cylinder is parallel to the second axis and meshes with the teeth; wherein, M is a positive integer less than N; wherein, when the input shaft rotates at an input speed, it drives the second transmission assembly to rotate synchronously, and through the meshing and linkage of the cylinders and the teeth, it drives the rotating part to rotate at an output speed, and the output speed is less than the input speed.

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