ww-ngwn differential multi-connected planetary reducer

Abstract

The present invention proposes a WW-NGWN differential multi-connected planetary reducer, including a machine base, an input shaft, an output shaft, a center wheel, an inner ring gear, a planetary wheel, and a planet carrier; the center wheel is divided into a first-stage center wheel and a second-stage center wheel The first-level center wheel, the inner ring gear includes the first inner ring gear and the second inner ring gear; the planetary carrier is divided into a first-level planetary carrier and a second-level planetary carrier, and the planetary gear is divided into a first-level planetary gear and a second-level planetary gear; The planetary gear meshes with the first-stage sun wheel and the second-stage sun gear simultaneously to form the first differential output of the first-stage reduction system; the first-stage planetary gear meshes with the first-stage sun wheel and the first ring gear to form the first Two differential outputs; the two-stage planetary gear meshes with the two-stage center wheel, the first ring gear, and the second ring gear simultaneously to form a two-stage reduction system; the second ring gear is fixedly connected to the output shaft. The speed reducer provided by the present invention has the advantages of large reduction ratio, large load capacity and high reliability under the condition of small volume on the premise of possessing the advantages of NGW and NGWN type planetary speed 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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