Planetary reducer

A planetary reducer and planet carrier technology, which is applied in the directions of transmission parts, gear transmissions, belts/chains/gears, etc., can solve the problems of high technological difficulty and high manufacturing cost

Inactive Publication Date: 2014-04-23
秦川机床工具集团股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the RV reducer has extremely high requirements on the processing and assembly precision of the parts, and the key parts such as the pin gear housing and the cycloidal wheel are difficult to process, it is difficult to achieve high-efficiency processing on the existing general-purpose machine tools, and it is necessary to develop expensive special-purpose machine tools. thus higher manufacturing costs

Method used

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Embodiment

[0032] A planetary reducer, which can be used to connect to the joint of an industrial robot, is composed of a first-stage planetary gear mechanism and a first-stage small-tooth-difference gear transmission mechanism. The planetary gear mechanism consists of a sun gear and planetary gears. The small-tooth-difference gear transmission mechanism is composed of an eccentric shaft, an external gear and an internal gear housing (including internal teeth), and the internal gear housing is fixed. The eccentric shaft is fixedly connected with the planetary gear as the input shaft of the gear transmission mechanism with small tooth difference. The power is input from the central gear of the planetary gear mechanism, and is transmitted to the external gear through the eccentric shaft solidly connected with the planetary gear. The external gear is connected between the eccentric shaft and the internal gear. Under the joint action of the shell (internal teeth), the plane motion makes the ...

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Abstract

The invention provides a planetary reducer which is composed of a first-level planetary gear mechanism and a first-level novel small-tooth-difference gear mechanism. The planetary gear mechanism is composed of a sun gear and a planetary gear. The small-tooth-difference gear mechanism is composed of an eccentric shaft, an outer gear and an inner gear casing. The inner gear casing is fixed, the eccentric shaft is fixedly connected with the first-level planetary gear to serve as an input shaft of a second-level small-tooth-difference gear mechanism, the outer gear conducts planar motion under the combined effect of the eccentric shaft and the inner gear casing to enable the outer gear to revolve around the axis of the inner gear casing and rotate reversely around the self axis, the rotating motion of the outer gear is output through a W mechanism, and the planetary reducer can be connected with a joint portion of an industrial robot.

Description

technical field [0001] The invention relates to a planetary reducer. Background technique [0002] The widely used 2K-V reducer is mainly composed of a first-stage planetary gear mechanism and a first-stage cycloidal pinwheel mechanism. This structure is also widely used in robot joint reducers, called RV reducers. Since the RV reducer has extremely high requirements on the processing and assembly precision of the parts, and the key parts such as the pin gear housing and the cycloidal wheel are difficult to process, it is difficult to achieve high-efficiency processing on the existing general-purpose machine tools, and it is necessary to develop expensive special-purpose machine tools. Therefore, the manufacturing cost is higher. Contents of the invention [0003] The purpose of the present invention is to provide a planetary reducer. [0004] In order to achieve the above object, the present invention adopts the following technical solutions. [0005] It includes a pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F16H57/023
CPCF16H1/32F16H57/023F16H2057/02069
Inventor 龙兴元毛世民田沙李刚冯仲高进
Owner 秦川机床工具集团股份公司
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