WW-NGWN differential multi-connected planetary reducer

Abstract

The invention provides a WW-NGWN differential multi-connected planetary reducer comprises a machine base, an input shaft, an output shaft, a central wheel, inner gear rings, a planetary wheel and a planet carrier; the center wheel is divided into a first-stage center wheel and a second-stage center wheel, and the inner gear rings comprise a first inner gear ring and a second inner gear ring; the planet carrier is divided into a first-stage planet carrier and a second-stage planet carrier, and the planet wheels are divided into a first-stage planet wheel and a second-stage planet wheel; the first-stage planet wheel, the first-stage center wheel and the second-stage center wheel simultaneously mesh to form a first differential output of a first-stage deceleration system; the first-stage planetary wheel, the first-stage central wheel and the first inner ring gear simultaneously mesh to form a second differential output of the first-stage deceleration system; the second-stage planet wheelmeshes with the second-stage center wheel, the first inner gear ring and the second inner gear ring simultaneously to form a second-stage reduction system; and the second inner ring gear is fixedly connected with the output shaft. The WW-NGWN differential multi-connected planetary reducer has the advantages of large reduction ratio, large bearing capacity and higher reliability under the conditionof small volume on the premise of having the advantages of NGW and NGWN type planetary reducers.

Description

technical field [0001] The invention relates to a mechanical reducer for transmitting motion and power, in particular to a WW-NGWN differential multi-connected planetary reducer. Background technique [0002] The reducer with large reduction ratio mostly adopts planetary reducer. In production, the planetary reducer mostly directly adopts traditional simple NGW or NGWN type reducer. The transmission ratio of the NGW planetary reducer is not large, generally around 1-14. If you want to obtain a larger reduction ratio directly through the NGW reducer, you can only increase the number of reduction stages without changing the design structure, but with the increase in the number of stages, the structure of the reducer will not only become extremely complicated, but also the assembly The difficulty is greatly increased, the space occupied will be larger and larger, and the weight and production cost will also increase accordingly, so the high-grade NGW planetary reducer is not t...

AI Technical Summary

Problems solved by technology

Therefore, the NGWN planetary reducer will still face great difficulties when the reduction ratio is required to be greater than 100.

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