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planetary gear train structure

A technology of planetary gear system and planetary gear, which is applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of poor applicability, many structural components, large volume, etc., and achieve simplified structure and improved Applicability, effect of size reduction

Active Publication Date: 2018-04-17
HIWIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a planetary gear train structure, which improves the problems of many structural components, large volume and poor applicability of common planetary gear sets

Method used

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Embodiment Construction

[0033] The preferred embodiment of the planetary gear train structure of the present invention is as follows: Figures 3 to 7 As shown, a sun gear 20 is included in a ring gear 30, at least one planet gear 40 is meshed between the sun gear 20 and the ring gear 30, and a planet carrier 50 is respectively coupled to the sun gear 20 and the planet gears 40. The number of the planetary gears 40 in this embodiment is three, and the planetary gear 40 is a ring gear and has an inner peripheral surface 41 and an outer tooth surface 42, and the connection direction of the two ends of each planetary gear 40 is defined. is the axial X, and the vertical axial X is defined as the radial Y.

[0034] The outer tooth surface 42 of the planetary gear 40 is provided with an outer ring groove 421 along the radial direction Y and has a bottom end 422 of the outer ring groove, and the inner peripheral surface 41 of the planetary gear 40 is provided with an inner ring cut along the radial direction...

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Abstract

The present invention provides a planetary gear train structure. The outer tooth surface and the inner peripheral surface of the planetary gear of the planetary gear train are respectively provided with outer ring grooves and inner ring grooves, thereby reducing the strength of the planetary gears and making the planetary gears produce With a little deformability or elasticity, as long as an axial force is applied to the two ends of the planetary gear in the axial direction, the planetary gear can be compressed in the axial direction and produce radial deformation to eliminate the gap between the sun gear and the ring gear at the same time. Backlash improves transmission efficiency; and the present invention provides the effect of deformation and clearance elimination by the planetary gear itself, without the need to assemble additional components, so it has the advantages of simplified structure, reduced volume, and improved applicability.

Description

technical field [0001] The present invention relates to a planetary gear train structure, which is related to a transmission. Background technique [0002] The planetary gear has the advantages of large carrying capacity, small size, high transmission efficiency and stable operation, so it is a transmission device widely used in various motor systems, and the basic structure of the planetary gear consists of at least one planetary gear. It is formed between the sun gear and a ring gear. Since the transmission is driven by the meshing gears, the meshing degree of each gear will directly affect the transmission efficiency, and the general processing level cannot avoid the backlash between the gears. Once the backlash occurs between the gears, it will also affect the transmission efficiency. [0003] so as figure 1 , 2 Shown is a planetary gear set 10 with a backlash elimination device, which mainly includes a gear ring 11, a sun gear 12, four planetary gear modules 13 and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/32
Inventor 刘家铭陈任垣
Owner HIWIN TECH