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Planetary gear mechanism and planetary reducer without backlash

A planetary gear and backlash technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve problems such as increasing product cost, and achieve the effect of cost saving, low processing cost, and elimination of backlash

Active Publication Date: 2021-06-29
陕西六环智能装备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to improve the transmission accuracy, the existing design methods reduce the backlash and bearing clearance by improving the machining accuracy and assembly accuracy, which has high requirements for processing capacity, increases product cost, and has physical limits

Method used

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  • Planetary gear mechanism and planetary reducer without backlash
  • Planetary gear mechanism and planetary reducer without backlash
  • Planetary gear mechanism and planetary reducer without backlash

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Embodiment Construction

[0045] Below in conjunction with embodiment the present invention is described in detail:

[0046] like figure 1 As shown, a planetary reducer includes an internal gear housing 3 and a three-stage planetary gear reduction mechanism. Each stage of the planetary reducer adopts a design without backlash, wherein the first stage The planetary reduction mechanism is used as an example to describe the backlash-free structure. The first-stage planetary reduction mechanism includes: a sun gear 1, a planetary gear set 2, a planetary carrier 4, a planetary gear shaft 5, and a bearing 6.

[0047] The sun gear 1 is an involute cylindrical gear and an external gear.

[0048] The planetary gear set is composed of N planetary gears, N≥2, the number of planetary gears is generally an even number, and can be an odd number in special cases. Without loss of generality, four planetary gears are taken as examples in this solution for description. Each planetary wheel is an involute cylindrical ...

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Abstract

The invention relates to a gear transmission mechanism, in particular to a planetary gear mechanism without backlash and a planetary reducer. The invention not only has low processing and assembly costs, but also eliminates the backlash, thus greatly improving the transmission accuracy of the equipment. Its structure mainly includes sun gear, planetary gear set, planetary carrier, planetary gear shaft and internal gear housing; planet carrier is provided with N planetary holes N≥2; Consistent, one end of the planetary gear shaft is inserted into the planetary hole, and the other end is installed with the planetary gear; the planetary gears in the planetary gear set are distributed along the circumferential direction, and each planetary gear in the planetary gear set meshes with the internal teeth of the internal gear housing; the sun The wheel meshes with each planetary wheel in the planetary wheel set; at least two planetary holes in the planetary carrier have a circumferential offset relative to the positions of the planetary wheels in the circumferential direction for reducing backlash.

Description

technical field [0001] The invention relates to a gear transmission mechanism, in particular to a planetary gear mechanism without backlash and a planetary speed reducer. Background technique [0002] Planetary gear: Planetary gear refers to a gear system that, in addition to being able to rotate around its own rotation axis like a fixed axis gear, their rotation axis also rotates with the planet carrier around the axis of other gears. The rotation around its own axis is called "autorotation", and the rotation around other gear axes is called "revolution". [0003] When using planetary gear transmission, it has the following characteristics: high load, large transmission ratio, power splitting can be performed when transmitting power, and the input shaft and output shaft are on the same level, so it has been widely used in various mechanical transmissions Reducers, speed increasers and transmissions in the system. [0004] Gear backlash: The backlash of gear teeth refers t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32F16H57/12
CPCF16H1/32F16H57/12
Inventor 王俊岭王传彬王玮
Owner 陕西六环智能装备科技有限公司
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