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Flexible planet gear transmission mechanism of wind power gear box

A technology of gear transmission mechanism and wind power gearbox, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc. It can solve the problem that the planetary gear shaft cannot produce elastic deformation, cannot maintain normal meshing of meshing teeth, and affects system reliability. To achieve the effect of improving load sharing performance, avoiding processing quality defects and increasing bending stress, and maintaining normal meshing

Inactive Publication Date: 2013-10-09
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, too much flexibility and floating of parts will increase the complexity of the system and affect the reliability of the system. Therefore, various measures to improve the load sharing performance of the wind power gearbox transmission are concentrated on the first-stage planetary gear train
[0004] Chinese patent document CN102518787A discloses a planetary transmission structure of a wind power gearbox. This patent uses a pair of tapered roller bearings on the planetary gear shaft and installs them back to back. It can withstand the impact caused by the axial force of the planetary gear, but the planetary gear The shaft cannot produce elastic deformation, and cannot maintain the normal meshing of the meshing tooth pair under the impact load

Method used

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  • Flexible planet gear transmission mechanism of wind power gear box
  • Flexible planet gear transmission mechanism of wind power gear box
  • Flexible planet gear transmission mechanism of wind power gear box

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] Such as figure 2 Shown, the present invention comprises axle pin 11, planetary wheel support 13, planetary wheel 14 and planetary wheel bearing 15, axle pin 11 is installed on the planetary wheel support 13, and planetary wheel 14 is installed on the axle pin 11 by planetary wheel bearing 15, so The shaft pin 11 is a hollow shaft, and a shaft sleeve 12 is installed between the shaft pin 11 and the planet wheel bearing 15, and an inner step 16 is provided in the middle of the shaft sleeve 12 .

[0020] Such as image 3 As shown, the two ends of the inner step 16 of the shaft sleeve 12 are provided with a tapered surface 17, and the tapered surface 17 makes the diameter of the two ends of the stepped ring surface larger, and when the shaft pin 11 is bent and deformed greatly, the contact area is increased. Large, the unit load is reduced, and the furt...

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Abstract

The invention discloses a flexible planet gear transmission mechanism of a wind power gear box. The flexible planet gear transmission mechanism of the wind power gear box comprises a shaft pin (11), a planet gear support (13), a planet gear (14) and a planet gear bearing (15), wherein the shaft pin (11) is installed on the planet gear support (13), the planet gear (14) is installed on the shaft pin (11) through the planet gear bearing (15), the shaft pin (11) is a hollow shaft, a shaft sleeve (12) is installed between the shaft pin (11) and the planet gear bearing (15), and an inner step (16) is arranged in the middle of the shaft sleeve (12). The flexible planet gear transmission mechanism of the wind power gear box has the advantages that in the situation that wind load changes, reasonable elastic deformation of the shaft pin can be kept, the service life of an engaging tooth is prolonged, normal engagement of a planet gear engaging tooth pair can be kept, and stability of transmission of the planet gear can be improved.

Description

technical field [0001] The invention relates to a planetary gear transmission mechanism of a wind power gearbox, in particular to a flexible planetary gear transmission mechanism of a wind power gearbox. Background technique [0002] figure 1 It is a diagram of the planetary gear transmission mechanism of the existing wind power gearbox, which includes a two-stage planetary gear train and a fixed shaft gear train. The first-stage planetary gear train has a first sun gear shaft 1, a first planetary gear carrier 2, a first planetary gear 3 and a first ring gear 4, and the first planetary gear carrier 2 is connected to and driven by the blade main shaft , to drive the first sun gear shaft 1 to rotate; the second-stage planetary gear train has a second sun gear shaft 5, a second planetary gear carrier 6, a second planetary gear 7 and a second ring gear 8, and the second planetary gear carrier 6 and The first sun gear shaft 1 is coaxially linked to drive the second sun gear sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/023F16H57/021
CPCF16H37/041F05B2260/40311
Inventor 朱才朝翟鸿飞顾宗林
Owner CHONGQING UNIV
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