Planetary harmonic combination reducer

A planetary harmonic and reducer technology, which is applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of difficult processing and assembly, large reducer volume, etc., and achieve simple and compact structure, small volume, light weight Effect of Small Radial and Axial Dimensions
CN110259891AInactive Publication Date: 2019-09-20UBTECH ROBOTICS CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UBTECH ROBOTICS CORP LTD
Publication Date
2019-09-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of reducers, and relates to a planetary harmonic combination reducer. An input shaft, a sun gear, a planet gear, a planet carrier and a flexible wheel form a first-stage planetary reduction gear train, the portion of a flexible wheel annular part is fixed, the input shaft is used for being connected with an external input device to serve as an input portion, the sun gear rotates along with the input shaft, the planet gear is simultaneously engaged with the sun gear and the flexible wheel, autoroatation around the axis of the planet carrier is carried out while revolution around the input shaft is carried out, forced outward expansion deformation is generated at the meshing portion of a flexible wheel cylinder portion and the planet gear, and inward shrinkage deformation is generated in a middle area of the cylinder portion. The sun gear, the planet gear and the planet carrier form a wave generator, and the wave generator, the flexible wheel, a rigid wheel and a first bearing form a second-stage harmonic reduction gear train, the portion of a flexible wheel annular portion is fixed, the wave generator is used as input, and the rigid wheel is used for being connected with an external output device for outputting power. The flexible wheel participates in movement of the first-stage planetary reduction gear train and the second-stage harmonic reduction gear train, the high reduction ratio is achieved, the space is effectively used, and processing and assembling are easy.
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Description

technical field

[0001] The invention belongs to the technical field of reducers, and more specifically relates to a planetary harmonic combination reducer. Background technique

[0002] The reduction ratio of the harmonic reducer is generally 30 to 160. Due to the limitation of its own volume and modulus, it is impossible to achieve a larger reduction ratio, resulting in limited application fields. In the prior art, a planetary harmonic reducer has been combined with a planetary reducer and a harmonic reducer to achieve a higher reduction ratio, but it has the disadvantages of large volume and difficult processing and assembly. Contents of the invention

[0003] The object of the present invention is to provide a planetary harmonic combination reducer to solve the technical problems of the existing planetary harmonic combination reducer with large volume and difficult processing and assembly.

[0004] An embodiment of the present invention provides a planetary harmonic co...

Claims

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