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Harmonic speed reduction method and device

A harmonic deceleration and rigidity technology, applied in hoisting devices, transmission devices, gear transmission devices, etc., can solve the problems of complex movable tooth structure, failure to form products, and easy failures, etc., and achieve low manufacturing cost and simple control , The effect of improving the load-bearing performance

Pending Publication Date: 2015-11-25
钱达
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It does not have a soft spline that is difficult to process with ordinary harmonic reducers
However, the structure of the movable tooth is relatively complicated, and it is not easy to process; moreover, the movable tooth is also prone to failure after a period of use, and the service life sometimes cannot be compared with some flexible splines with better performance, so it has not been able to form a product

Method used

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  • Harmonic speed reduction method and device
  • Harmonic speed reduction method and device
  • Harmonic speed reduction method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0048] Such as Figure 5 As shown, the harmonic speed reduction device provided in this embodiment is basically the same as that in Embodiment 1, except that the rigid external gear 4 includes a first rigid external gear 41 and a second rigid external gear 42 . A first parallel eccentric shaft 31 is provided corresponding to the first rigid external gear 41 , a second eccentric shaft 32 is provided corresponding to the second rigid external gear 42 , and both the first eccentric shaft 31 and the second eccentric shaft 32 are fixed to the input shaft 1 .

[0049] Wherein, the first eccentric shaft 31 and the second eccentric shaft 32 are arranged oppositely around the input shaft 1, and the first rigid external gear 41 and the second rigid external gear 42 are folded together and meshed with different teeth of the rigid internal gear 2 respectively. .

[0050] The specific structure between the two eccentric shafts and the input shaft 1 is as follows: between the first eccentr...

Embodiment 3

[0054] Such as Figure 6 As shown, the harmonic deceleration device provided by this embodiment is basically the same as the second embodiment, the difference is that the first eccentric shaft 31 and the second eccentric shaft 32 are not fixed, but the second parallel eccentric The shaft 32 is fixed on the first rigid external gear 41 . The advantage of this arrangement is that the gap between adjacent rigid external gears is minimized, the structure is compact, and the assembly is simpler and more convenient.

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Abstract

The invention creatively provides a brand-new harmonic speed reduction method. The harmonic speed reduction method is characterized in that parallel eccentric shafts in linkage with an input shaft are arranged, the parallel eccentric shafts are sleeved with rigid outer gears engaged with a rigid inner gear, the rigid outer gears move along the periphery of the rigid inner gear in an engaged manner, and the rigid inner gear or the rigid outer gears is / are connected with an output shaft, so that harmonic speed reduction is achieved. Compared with a traditional harmonic speed reduction gear, no flexible gear is needed in the harmonic speed reduction method, so that the problems that the material deformation requirement, the service life requirement and the manufacturing cost requirement can not be met due to the usage of flexible gears are completely avoided, and the harmonic speed reduction method has great market promotion value and broad application prospects. The invention further provides a harmonic speed reduction device.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to a harmonic reduction method and device. Background technique [0002] Harmonic gear reducer is a new type of reducer developed by using the deformation transmission principle of materials. Such as figure 1 As shown, the common harmonic gear reducer usually includes three basic components, namely rigid spline 1, flexible spline 2 and wave generator 3, and the rotating shaft is fixed with the wave generator 3. During operation, the flexspline 2 is bent into an ellipse by the wave generator 3, and the external teeth of the flexspline 2 mesh with the internal teeth of the rigid spline 1 at the two ends of the long axis of the ellipse to achieve the purpose of deceleration. [0003] The existing harmonic speed reducers must have flex splines, which have high requirements on material performance. At present, the domestic harmonic speed reducers have short life due to material reason...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H55/17
CPCF16H1/32F16H55/17F16H2001/327F16H2055/176
Inventor 钱达
Owner 钱达
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