Harmonic gear power transmission with double circular arc tooth outline

A technology of harmonic gear and harmonic transmission, which is applied in the direction of gear transmission, transmission, belt/chain/gear, etc., and can solve the problems of mutual compatibility of basic tooth profiles

Inactive Publication Date: 2008-03-05
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Basic tooth profiles developed on the basis of different wave generators cannot be adapted to each other

Method used

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  • Harmonic gear power transmission with double circular arc tooth outline
  • Harmonic gear power transmission with double circular arc tooth outline
  • Harmonic gear power transmission with double circular arc tooth outline

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Experimental program
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Embodiment Construction

[0029] The present invention uses an elliptical cam wave generator.

[0030] As shown in Figure 2, the outer profile of the elliptical wave generator, the inner and outer rings of the flexible bearing, and the middle section of the flexspline meshing ring gear all become the equidistant curve of the curve under the action of the elliptical wave generator.

[0031] The standard elliptic equation can be written in polar coordinate form

[0032] ρ = ab ( a sin θ ) 2 + ( b sin θ ) 2 - - - ( 1 )

[0033] In the formula, a is t...

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Abstract

The harmonic wave gear driver with two-arc teeth profile comprises wave generator, flexible wheel and rigid wheel. The wave generator is in form of elliptic cam, the flexible wheel and the rigid wheel has a two-arc teeth profile respectively which can realize conjugation motion. The driver can effectively improve the stress condition of the flexible wheel tooth-root and drive quality and increase load-bearing ability and torque rigidity of harmonic wave driver, and further lower minimum drive ratio of harmonic wave driver. Advantages: good processing property.

Description

technical field [0001] The invention relates to a harmonic gear transmission, in particular to a harmonic gear transmission with double arc tooth profiles. Background technique [0002] Harmonic transmission technology is a new type of transmission technology that appeared on the basis of elastic thin shell theory with the development of space science and aerospace technology in the middle of the 20th century. It has the advantages of high motion precision, large transmission ratio, light weight, small size, large carrying capacity, and can work normally in confined spaces and medium radiation conditions. It has been successfully applied in space technology, instrumentation, robots, printing, etc. Machinery and medical equipment and other fields. [0003] Harmonic drives are usually composed of wave generators, flexible splines and rigid splines, commonly known as "three major components". Its kinematics can be briefly described as follows. [0004] For the harmonic drive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/24
CPCF16H49/001
Inventor 辛洪兵
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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