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A planetary gear transmission with large transmission ratio and small tooth difference

A planetary and gear transmission technology with small tooth difference, applied in the direction of gear transmission, transmission, transmission parts, etc., can solve the problems of large structure, inability to combine the use of small tooth difference gear transmission, and large number of gears, etc.

Active Publication Date: 2020-10-27
HUBEI UNIV OF AUTOMOTIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to make up for the defects existing in the prior art, and provide a planetary gear transmission with a large transmission ratio and a small tooth difference, which solves the problem that the existing transmission device has a large number of gears, a large structure volume, and cannot combine the use of a small tooth difference gear transmission and Advantages of planetary gear transmission

Method used

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  • A planetary gear transmission with large transmission ratio and small tooth difference
  • A planetary gear transmission with large transmission ratio and small tooth difference

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Embodiment Construction

[0017] The specific implementation manner of the present invention will be briefly described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, a planetary gear transmission with a large transmission ratio and few teeth differences includes a housing 1 and an input shaft 2 and an output shaft 15 rotatably mounted on the housing 1. The input shaft 2 and the output shaft 15 The center of rotation is coaxial, one end of the input shaft 2 protrudes from the housing 1, the other end of the input shaft 2 is rotatably connected to one end of the output shaft 15, and the other end of the output shaft 15 protrudes The housing 1; the input shaft 2 is covered with an eccentric sleeve 3 fixedly connected to the input shaft 2, the eccentric sleeve 3 includes two cylindrical eccentric shaft sections, and the transmission device also includes The first external gear 4 and the second external gear 6, the first external gear 4 is rotatably sleeved on one ...

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Abstract

The invention discloses a large-transmission-ratio small-tooth-difference planetary gear transmission device, and relates to the field of mechanical transmission. The large-transmission-ratio small-tooth-difference planetary gear transmission device comprises a shell, an input shaft and an output shaft, wherein the input shaft and the output shaft are rotationally arranged on the shell, the inputshaft is sleeved with an eccentric sleeve fixedly connected with the input shaft, the eccentric sleeve comprises two eccentric shaft sections with the deviation phase difference of 180 degrees, the transmission device further comprises a first outer gear and a second outer gear which are arranged on the eccentric sleeve in a sleeving mode, the first outer gear and the second outer gear are connected through a first connecting piece, the first outer gear is meshed with a first inner gear fixedly connected to the inner wall of the shell, the input shaft is further sleeved with a rotating shaft in a rotational mode, a connecting disc fixedly connected with the rotating shaft is arranged on the rotating shaft, a second inner gear is fixedly connected to the inner wall of the connecting disc, the second outer gear is meshed with the second inner gear, and a planetary gear system is further connected between the rotating shaft and the output shaft. The transmission device is more compact instructure, smaller in occupied space and capable of combining the advantages of small-tooth differential gear transmission with the advantages of planetary gear transmission.

Description

technical field [0001] The invention relates to the field of mechanical transmission, in particular to a planetary gear transmission device with large transmission ratio and small tooth difference. Background technique [0002] In the mechanical transmission device, in order to reduce the size and weight of the transmission device and increase the transmission ratio of the transmission mechanism, at present, a planetary gear transmission mechanism with a small tooth difference or a planetary gear transmission mechanism is often used to increase the transmission ratio. However, in the existing transmission part with less tooth difference, in order to meet the requirements of dynamic balance, the two external gears are installed on the eccentric sleeve with a phase difference of 180 degrees. If two-stage reduction is realized, the output shaft of the first stage is the input shaft of the second stage. A total of four external gears are required, resulting in a larger transmiss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32
CPCF16H1/32F16H2001/289F16H2001/322F16H2001/323F16H2001/327F16H2001/328F16H2057/02086F16H2057/02095
Inventor 孙章栋任爱华孙国兴宋俊胡飞飞
Owner HUBEI UNIV OF AUTOMOTIVE TECH
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