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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

Inactive Publication Date: 2013-07-17
XINJIANG GOLDWIND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the RV reducer, compared with the cycloid reducer, an external meshing gear pair is added, the transmission ratio is larger, and the load capacity is stronger, but because the transmission ratio of the external meshing gear pair is usually fixed, and Limited by its own structure, the space for increasing the total transmission ratio is limited

Method used

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  • Speed reducer

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Embodiment Construction

[0018] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in detail below in conjunction with the drawings and embodiments, wherein the same reference numerals always represent the same components.

[0019] figure 1 is a structural schematic diagram of a reducer according to an embodiment of the present invention.

[0020] refer to figure 1 , The speed reducer according to the embodiment of the present invention includes an outer casing and a planetary transmission mechanism with a small tooth difference and a worm gear transmission mechanism both arranged inside the outer casing. Wherein, the worm gear 4 of the worm gear transmission mechanism is fixedly connected with the input shaft of the planetary transmission mechanism with small tooth difference, that is, the worm gear 4 of the worm gear transmission mechanism is fixedly installed on the input shaft of the planetary transmission mechanism with...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H57/08
Inventor 方振江
Owner XINJIANG GOLDWIND SCI & TECH
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