Cylindrical ring groove type double-cycloid small-tooth-difference planetary reducer

A technology of planetary and cylindrical rings with less tooth difference, applied in the direction of components with teeth, gear transmissions, belts/chains/gears, etc., can solve problems such as small volume

Active Publication Date: 2021-05-11
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a cylindrical annular groove type double cycloid planetary reducer with small tooth difference with hi

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  • Cylindrical ring groove type double-cycloid small-tooth-difference planetary reducer
  • Cylindrical ring groove type double-cycloid small-tooth-difference planetary reducer
  • Cylindrical ring groove type double-cycloid small-tooth-difference planetary reducer

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[0066]The embodiments of the present invention will be easily understood by those skilled in the

[0067]The drawings are intended to be illustrative only, rather than illustrative, not to be understood, in order to better illustrate embodiments of the invention, and other components of the present invention will be omitted. Enlarge or shrink does not represent the size of the actual product; some well-known structures and descriptions thereof may be understood in the dra...

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Abstract

The invention relates to a cylindrical ring groove type double-cycloid small-tooth-difference planetary reducer, and belongs to the field of reducers. According to the reducer, two planet gears doing eccentric motion are adopted to form an N-type combined gear train to achieve speed reduction. Tooth profiles of the planetary gear and the inner gear are formed by combining inner and outer double cycloids, and a tooth crest of the planetary gear is always engaged with a tooth crest of the inner gear in the transmission process, so that the transmission efficiency of the reducer is improved, and the precision attenuation of the reducer is slowed down. Large-contact-ratio transmission can be achieved by adjusting gear parameters, meanwhile, the inner gear can be integrally machined, and high-precision assembly of pin teeth in an existing RV speed reducer is avoided. In addition, motion and power are transmitted to an output flange from the planet gear through cylindrical ring groove constant-speed mechanisms, the transmission efficiency is high, the multiple cylindrical ring groove mechanisms are matched to form a multi-rolling-body error homogenization effect similar to a bearing, and the transmission precision is improved. The whole structure is simple and compact, and the defect of application limitation in the prior art is overcome.

Description

technical field [0001] The invention belongs to the field of reducers, and in particular relates to a cylindrical ring groove type double cycloid planetary reducer with less tooth difference. Background technique [0002] With the development of modern industry and the continuous improvement of mechanization and automation, industrial robots are widely used. As the core component of industrial robots, joint reducers need to meet performance requirements such as high precision, high transmission ratio, high efficiency, high load capacity, high power density, low noise, and small size. This is also the guarantee for the safety and precision of industrial robots. The essential. [0003] At present, the joint reducer mainly adopts harmonic reducer and RV reducer. Among them, harmonic transmission uses the elastic deformation of thin-walled parts to realize the transmission of motion and power. It has the advantages of light weight, high transmission precision, and a large numb...

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Application Information

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IPC IPC(8): F16H1/32F16H57/023F16H57/021F16H57/08F16H57/031F16H57/02
CPCF16H1/32F16H57/023F16H57/021F16H57/08F16H57/031F16H57/02
Inventor 石万凯刘昶刘浩刘坤苏振浩张镇宇
Owner CHONGQING UNIV
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