Harmonic speed reducer of cycloid roller chain

A technology of harmonic reducer and roller chain, which is applied in the direction of belt/chain/gear, mechanical equipment, transmission device, etc., which can solve the constraints on the development and application of harmonic reducer, complex processing technology of flex spline, and early fatigue fracture of flex spline and other problems, to achieve the effect of eliminating dynamic unbalance defects, avoiding macro deformation requirements, and avoiding early fatigue cracking

Active Publication Date: 2004-12-15
宁波凯荣新能源有限公司
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AI Technical Summary

Problems solved by technology

In the harmonic reducer, the processing technology of the flexspline is complicated, the manufacturing cost is high, and the early fatigue fracture of the flexspline is prone to occur during operation
Since the flexspline realizes the meshing transmission based on the macroscopic elastic deformation of the cylinder material, the development and application of the harmonic reducer in the field of high power and heavy load is restricted.

Method used

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  • Harmonic speed reducer of cycloid roller chain
  • Harmonic speed reducer of cycloid roller chain
  • Harmonic speed reducer of cycloid roller chain

Examples

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Embodiment Construction

[0026] 1. Long cycloidal pin wheel planetary meshing transmission principle

[0027] Such as figure 1 As shown, the principle of long-width cycloidal pinwheel planetary meshing transmission with few tooth differences, where A is the rotating arm, and the rollers D are evenly distributed on the same radius of the planetary wheel B, when the rotating arm rotates counterclockwise at an angular velocity of ω1, the planetary The rollers on the wheel mesh with the long-width cycloid equidistant tooth profile on the small-tooth-difference internal ring gear E in turn, and the center C of the roller D will move on the long-width cycloid F in the direction of the arrow. Let the number of rollers on the planetary wheel be Z 2 , the number of teeth of the internal gear with small tooth difference is Z 3 , when the rotating arm A rotates once, the planetary gear rotates Z in the direction of ω2 3 -Z 2 a roller.

[0028] 2. Cycloidal roller chain harmonic drive principle

[0029] Suc...

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Abstract

The harmonic speed reducer with cycloid roller chain includes one harmonic generator connected to the input shaft and on double rack, one double-row roller chain ring, the first inner gear fixed to the chassis and with teeth in the number two or three less than the number of the chain sections in the roller chain ring, and the second inner gear fixed to the output shaft and with teeth in the number the same as the number of the chain sections in the roller chain ring. Under the driving of the harmonic generator, one row of the rollers in the double-row roller chain ring meshes with the first inner gear while the other row of the rollers in the double-row roller chain ring meshes with the second inner gear. The mesh pairs are embossed contacted for high bearing capacity and dynamically designed. The present invention realizes the harmonic cycloid mesh transmission by means of the radial flexibility and axial rigidity of the double-row roller chain ring, and has compact structure and low cost.

Description

Technical field [0001] The invention relates to a cycloidal roller chain harmonic reducer with an input shaft and an output shaft coaxial. Background technique [0002] The existing coaxial-type large transmission ratio reduction transmission machinery can be divided into three categories: involute planetary reducer with small tooth difference, cycloidal pinwheel reducer and traditional harmonic reducer. In the involute planetary reducer with small tooth difference, in order to avoid tooth tip interference, it is necessary to adopt a large meshing angle transmission, and the radial load is large. In the cycloidal pin gear reducer, in order to avoid redundant cutting of the cycloidal gear, a short coefficient is introduced. When the transmission ratio is large, the tooth height of the cycloidal gear is very small, and slipping failure will occur when the load is loaded. Both the involute planetary reducer with small tooth difference and the cycloid reducer need to output mot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/06F16H37/00
CPCF16H2025/066
Inventor 石永刚石劲灏
Owner 宁波凯荣新能源有限公司
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