Novel energy-saving two-stage speed reduction device

A novel energy-saving two-stage speed reduction device comprises a center disk and two eccentric disks which are all arranged in sequence, the two eccentric disks, the right side surface of the center disk and the left side surface of an output disk are provided with an epicycloid groove and a hypocycloid groove respectively in a marked mode, the surface of one eccentric disk is provided with a hypocycloid groove and six annular grooves in a marked mode, the surface of the other eccentric disk is provided with an epicycloid groove and six annular grooves in a marked mode, an input shaft is connected with the disks through four rolling bearings, and the center disk and the eccentric disks move in a meshed mode through steel balls so that the first-stage speed reduction can be achieved, the eccentric disks and the output disk move in a meshed mode through steel balls so that the second-stage speed reduction can be achieved, the steel balls are isolated through holders, and the eccentric disks move in a meshed mode through steel balls so that an annular groove constant-speed output mechanism can be formed. The novel energy-saving two-stage speed reduction device is applicable to a precise mechanical structure and has the advantages of being large in transmission ratio, compact in structure, stable in transmission, economical and practical, and the novel energy-saving two-stage speed reduction device has very good industrial application value.