REDUCER HAVING WORM-GEAR MECHANISM

The present invention relates to the technical field of mechanical transmission. Disclosed is a reducer having a worm-gear mechanism. The reducer comprises an eccentric shaft, a worm-gear mechanism, and a few-tooth-difference reduction mechanism. The eccentric shaft comprises an input shaft section, a first shaft section, and a second shaft section which are eccentrically arranged. The few-tooth-difference reduction mechanism comprises a first harmonic rigid gear, a second harmonic rigid gear, a gear ring, and an outer housing. The first harmonic rigid gear is rotatably arranged on the first shaft section and the second harmonic rigid gear is rotatably arranged on the second shaft section. The gear ring is sleeved on both the first harmonic rigid gear and the second harmonic rigid gear, and the outer housing is sleeved on the deformed gear ring. The worm-gear mechanism comprises a worm gear and a worm screw. The first harmonic rigid gear and the second harmonic rigid gear are connected to a power output mecha