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Split torque compound planetary drivetrain for wind turbine applications

一种风力涡轮机、复合行星齿轮的技术，应用在风力发动机、齿轮传动装置、风力发电机组件等方向，能够解决降低风力涡轮机扭矩密度等问题

Active Publication Date: 2010-06-09
GENERAL ELECTRIC RENOVABLES ESPANA SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the foregoing, it would be both advantageous and beneficial to provide a gear transmission unit having a torque density sufficient to substantially reduce the wind turbine nacelle weight and tower weight, while using existing of wind turbine gear units are out of reach

Method used

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  • Split torque compound planetary drivetrain for wind turbine applications
  • Split torque compound planetary drivetrain for wind turbine applications
  • Split torque compound planetary drivetrain for wind turbine applications

Examples

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Embodiment Construction

[0066] figure 2 A torque-split planetary gear drive 100 according to one embodiment of the invention is shown, while image 3 Further details of the planet carrier 106 depicted in FIG. 1 are shown according to one embodiment of the invention. The gear drive 100 includes a stationary ring gear 102 meshing with more than three planet gears 104 , and a rotating planet carrier 106 . A first stage comprising a plurality of planet gears 104 is driven by an input shaft 108 . The first stage drives the second stage through a common gear shaft (pin) 110 . The second stage planetary gears 112 , 113 in turn mesh with one or more sun gears 114 , 116 via an output shaft 118 .

[0067] More specifically, and continue to see figure 2 and image 3, the torque-split compound planetary gear drive 100 includes a stationary ring gear 102 . The planet carrier 106 , including at least one carrier arm, is configured to rotate about a central axis 122 of the ring gear 102 in response to an inpu...

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Abstract

The invention relates to a split torque compound planetary drivetrain for wind turbine applications, especially a compound planetary gear transmission unit (100) including a second stage with axially staggered planets (112), (113).

Description

technical field [0001] The present invention relates generally to wind turbines, and more particularly to a compound planetary gear transmission unit interposed between a rotor and a generator of a wind turbine. Background technique [0002] The wind turbine 10 shown in FIG. 1 includes an epicyclic gear drive unit 12 housed and supported by a nacelle 14 in which the gear drive unit 12 functions to transfer torque from rotor blades 16 and rotor hub 18 to Generator 20. [0003] The use of a planetary gearbox to drive the generator 20 in response to the rotation of the rotors 16, 18 of a wind turbine is well known. The rotor provides a low speed, high torque input to the gear transmission unit 12 . [0004] Market forces are always demanding wind turbines with higher output at lower cost and greater reliability. As the power output requirements of the wind turbine increase, the rotational speed of the rotor blades 16 typically decreases due to noise requirements. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00F16H1/28
CPCF16H2001/289Y02E10/722F03D11/02F16H1/2845Y02E10/72Y02E10/726F05B2260/40311F03D15/00F03D15/10
Inventor F·J·罗佩斯A·D·加德里D·L·哈尔曼
Owner GENERAL ELECTRIC RENOVABLES ESPANA SL
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