Speed reducer

A technology of reducer and transmission mechanism, applied in transmission parts, gear transmissions, belts/chains/gears, etc., can solve the problems of limited space and restrictions on the increase of transmission ratio, and achieve compact structure, low output speed, and volume. small effect
CN103206491AInactive Publication Date: 2013-07-17XINJIANG GOLDWIND SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
XINJIANG GOLDWIND SCI & TECH
Publication Date
2013-07-17
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a speed reducer which comprises a shell. The speed reducer further comprises a small teeth difference planetary drive mechanism and a worm drive mechanism which are both arranged inside the shell, and a worm gear of the worm drive mechanism is fixedly mounted an input shaft of the small teeth difference planetary drive mechanism. When the speed reducer is used for power drive, rotary motion is inputted from the worm drive mechanism and outputted from an output shaft of the small teeth difference planetary drive mechanism, and is totally subjected to double reductions which are reduction carried out by the mutually meshed worm and worm gear and reduction carried out by the small teeth difference planetary drive mechanism respectively, so that drive ratio and bearable load are increased significantly by the aid of the speed reducer. Besides, the worm drive mechanism and the small teeth difference planetary drive mechanism are arranged inside the same shell, and accordingly, the speed reducer is compact in structure, small in size and lightweight.
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Description

technical field

[0001] The invention relates to the field of mechanical transmission, more specifically, the invention relates to a speed reducer. Background technique

[0002] Planetary gear transmission has the characteristics of light weight and large transmission ratio, and is mainly used in fields such as metallurgy, mining and wind power generation. Compared with the involute planetary gear transmission mechanism, the small tooth difference planetary transmission mechanism has a larger transmission ratio and a smaller power-to-volume ratio, and has been developed rapidly in recent years.

[0003] The small-tooth-difference planetary transmission mechanism mainly includes a cycloidal pinwheel planetary transmission mechanism and an involute small-tooth-difference planetary transmission mechanism. For the cycloidal pinwheel reducer that adopts the cycloidal pinwheel planetary transmission mechanism, it usually includes an input part, a deceleration part and an output pa...

Claims

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