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A three-stage deceleration planetary reducer, industrial robot

A technology of planetary reducer and three-stage reduction, which is applied in the direction of mechanical equipment, transmission devices, gear transmission devices, etc., and can solve the problem that the reducer cannot be compatible with large reduction ratio and small design volume

Active Publication Date: 2019-05-07
SHENZHEN INST OF ADVANCED TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to provide a three-stage deceleration planetary reducer and an industrial robot to solve the technical problem that the reducer in the prior art cannot be compatible with the contradiction between the large reduction ratio and the small design volume

Method used

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  • A three-stage deceleration planetary reducer, industrial robot
  • A three-stage deceleration planetary reducer, industrial robot
  • A three-stage deceleration planetary reducer, industrial robot

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Embodiment Construction

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations...

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Abstract

The invention provides a three-grade deceleration planetary reducer and an industrial robot. The three-grade deceleration planetary reducer comprises a pin gear shell, a cycloidal gear, an input shaft, a planet shaft, a crank shaft and an output part; gear teeth of the cycloidal gear can be engaged with pin teeth in the pin gear shell; a first-grade planet gear on the planet shaft is engaged with a driving gear on the input shaft; a second-grade planet gear on the crank shaft is engaged with the first-grade planet gear; the crank shaft is provided with an eccentric cylinder eccentrically arranged relative to the center axis of the crank shaft; a first bearing is arranged between the eccentric cylinder and the hole wall of a bypass hole; the output part is supported and connected into the pin gear shell through a second bearing; the planet shaft is supported and connected to the output part through a third bearing; and the crank shaft is supported and connected to the output part through a fourth bearing. The three-grade deceleration planetary reducer solves the technical problem that a speed reducer in the prior art cannot achieve compatibility of the high deceleration ratio and the smaller designed size.

Description

technical field [0001] The invention belongs to the technical field of industrial robot equipment, and more specifically relates to a three-stage reduction planetary reducer and an industrial robot. Background technique [0002] In the prior art, the joint reducers of industrial robots mainly use cycloidal pinwheel drive first-stage reducer or compound two-stage reducer composed of involute planetary drive and cycloidal pinwheel drive, and harmonic reducer device. Among them, the most widely used is a compound two-stage reducer composed of involute planetary gear transmission and cycloidal pin gear transmission. The primary reducer for cycloidal pinwheel transmission and the compound secondary reducer composed of involute planetary gear transmission and cycloidal pinwheel transmission are mainly used for the joints of industrial robots that bear heavy loads, while the harmonic reducer It is mainly used at the joints of industrial robots with lower loads. [0003] Cycloida...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/28
CPCF16H1/28
Inventor 何凯柳冠伊毛贺俞灏王钰堃
Owner SHENZHEN INST OF ADVANCED TECH
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