Swing ring small-tooth-difference speed reducer

Abstract

The invention relates to a swing ring small-tooth-difference speed reducer which comprises a shell, a left end cover, a right end cover, an input shaft and an output shaft. A baffle is installed between the right end cover and the right end surface of the shell, two swing rings are connected onto the input shaft in series, eccentric bearings connected to the input shaft in series are installed incenter holes of the swing rings, crankshafts are connected into shaft holes of the swing rings in a penetrating manner, a needle tooth shell with internal teeth engaged with external teeth of the twoswing rings at intervals for transmission is arranged on the outer sides of the swing rings in a sleeving manner, planet carriers on the left sides of the swing rings are supported in a bearing hole in the right end face of the shell through bearings, the right end surface of the needle tooth shell and the planet carriers are fixedly installed through screws, the right ends of the crankshafts aresupported on the baffle through bearings, the left ends of the crankshafts are supported on the planet carriers through bearings, the crankshafts are sleeved with bearings, the bearings are installedin the shaft holes of the swing rings; the centers of the planet carriers are provided with inner ring gears, the right end of the output shaft is connected with a sun gear, and the sun gear is meshedwith the inner ring gears; the right end of the input shaft is supported on the right end cover through bearings, and the left end of the input shaft is supported to an inner hole of the sun gear through a bearing, and the left end of the output shaft is supported to the left end cover through a bearing.

Description

technical field [0001] The invention relates to the field of reducers, in particular to a reducer with a pendulum ring and less tooth difference. Background technique [0002] At present, reducers are widely used in various fields such as mining, metallurgy, cement mixing, sugar extraction, lifting and transportation, hydropower stations and navigation ships, especially in the steel industry, which require large transmission ratio, large output torque, reliable operation, impact resistance, Reduction equipment with strong overload capacity. At present, the general reducer, such as the hard tooth surface reducer, its structure is: a box with an output shaft and an input shaft, and a two-stage deceleration cylindrical gear is installed between the output shaft and the input shaft in the box. The transmission ratio is relatively small and prone to fatigue damage, which cannot meet the requirements; the cycloid reducer can achieve a large transmission ratio, but the output torq...

AI Technical Summary

Problems solved by technology

At present, the general reducer, such as the hard tooth surface reducer, its structure is: a box with an output shaft and an input shaft, and a two-stage deceleration cylindrical gear is installed between the output shaft and the input shaft in the box. The transmission ratio is relatively small and prone to fatigue damage, which cannot meet the requirements; the cycloid reducer can achieve a large transmission ratio, but the output torque cannot meet the requirements

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