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Arrangement and method to rotate the hub of a wind turbine

一种风力涡轮机、机械装置的技术，应用在毂的装置领域，能够解决拆卸等问题

Active Publication Date: 2013-10-30
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] This presents the disadvantage that the counterweights are fixed at each position of the blade and need to be removed when the blade is installed

Method used

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  • Arrangement and method to rotate the hub of a wind turbine
  • Arrangement and method to rotate the hub of a wind turbine
  • Arrangement and method to rotate the hub of a wind turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0086] figure 1 Embodiments of the invention are shown.

[0087] figure 1 A nacelle 2 of a wind turbine is shown. A hub 3 is attached to the nacelle 2 , the hub 3 being ready to receive a rotor blade mounted to the hub 3 . The rotor blade can eg be mounted to a designated location 4a.

[0088] A lever 5 is attached to the front of the hub 3 , the lever 5 pointing outwards in a radial direction when viewed relative to the axis of rotation 10 of the wind turbine hub 3 .

[0089] The lever 5 is rotatable relative to the hub 3 about a rotation axis 10 of the hub 3 . The lever 5 is detachably mounted to the hub 3 of the wind turbine. It can be mounted to the hub 3 before mounting the first rotor blade and can be detached from the hub 3 after mounting the rotor blade.

[0090] A balance weight 6 is attached to the lever 5 . The balance weight 6 is movable along the lever 5 . Therefore, the distance between the center of mass of the balance weight 6 and the rotation axis 10 o...

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PUM

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Abstract

The invention relates to an arrangement and a method to rotate the hub of a wind turbine. A wind turbine comprises a hub 3 mounted to a nacelle 2 whereby the hub 3 is rotatable around an axis of rotation 10 in respect to the nacelle 2. At least one rotor blade 7a, 7b, 7c is arranged at the hub 3 that leads to a torque around the axis of rotation 10 of the hub 3. A counter weight 6 is attached to the hub 3, whereby the counter weight 6 comprises a mass that leads to a counter-torque around the axis of rotation 10 of the hub 3. The counter-torque interacts with the torque during the installation of at least a second rotor blade 7a, 7b, 7c to the hub. The counter weight 6 is mounted to the hub 3 by a mechanical arrangement that is rotatable in respect to the hub 3 around the axis of rotation 10 of the hub 3. The mechanical arrangement and the counter weight 6 are rotatable in respect to the hub 3 into a certain predetermined position.

Description

technical field [0001] The present invention relates to an arrangement and a method for rotating the hub of a wind turbine. Background technique [0002] Wind turbines convert wind energy into electricity. A wind turbine comprises a nacelle connected to a tower and a rotor connected to the nacelle. The rotor includes a hub rotatably mounted to the nacelle and at least one rotor blade mounted to the hub. [0003] The wind interacts with the rotor blades of the wind turbine in such a way that the rotor rotates. The rotation of the rotor is transmitted to the generator. [0004] When the wind turbine is erected, the tower is erected and the nacelle is mounted to the tower. A hub is mounted to the nacelle and the at least one rotor blade is mounted to the hub. [0005] The at least one rotor blade is hoisted by a crane and connected to the hub. The hub must be in a predetermined angular rotational position about its axis of rotation in order to establish a connection betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00
CPCF03D1/0675F03D1/0658Y02E10/726F03D11/00Y02E10/728Y02E10/721F05B2230/608F03D11/04F03D80/00Y02E10/72Y02P70/50F05B2260/31
Inventor P.L.法尔肯伯格K.A.马杰J.B.尼尔森H.波尔森B.拉斯姆森H.斯蒂斯达尔
Owner SIEMENS GAMESA RENEWABLE ENERGY AS