Wind turbine rotor and wind turbine rotor maintenance method

A technology of wind turbines and wind turbine blades, applied to wind engines, machines/engines, and wind engines in the same direction as the wind, which can solve problems such as increasing operating loads

Inactive Publication Date: 2012-08-08
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, on many wind turbines, the pitch of the blades can be changed by rotating the blade root relative to the hub, thus further increasing the operating load

Method used

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  • Wind turbine rotor and wind turbine rotor maintenance method
  • Wind turbine rotor and wind turbine rotor maintenance method
  • Wind turbine rotor and wind turbine rotor maintenance method

Examples

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Embodiment Construction

[0024] figure 2 is a close up perspective view of the nacelle and hub area of ​​a wind turbine in an exemplary embodiment of the invention. The rotor 4 comprises three wind turbine blades 5 attached to a hub 6 . Only the blade root of each blade 5 is shown. The rotor 4 is attached to the nacelle 3 which in turn is attached to the tower 2 .

[0025] Bearings (not shown) are provided at the junction between the blades 5 and the hub 6 to enable rotation of the blades 5 relative to the hub 6, allowing the pitch of the blades to be adjusted. A maintenance platform 10 is attached to the hub 6 at the base of each blade 5 by struts 12 . The struts may be connected to the hub by fasteners or by a welded joint, as is known in the art. Therefore, preferably the service platform is permanently and immovably attached to the wind turbine hub for use.

[0026] In this embodiment, the walkway surrounds the blade root, leaving clearance for the blade root to rotate for pitch control. Th...

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Abstract

The invention relates to a wind turbine rotor having one or more wind turbine blades mounted on a rotor hub, the blades having a tip portion and a root portion; a service platform mounted on the wind turbine rotor providing access to the blade root portion of a wind turbine blade, wherein the service platform comprises: a walkway for a wind turbine service engineer.

Description

technical field [0001] The present invention relates to wind turbines, and in particular to a wind turbine rotor with a maintenance platform. Background technique [0002] figure 1 A wind turbine 1 is shown comprising a tower 2 on top of which a nacelle 3 is mounted. At least one wind turbine blade 5 is mounted on a hub 6 to form a rotor 4 . The hub 6 is connected to the nacelle 3 by a low speed shaft (not shown) protruding from the front of the nacelle. figure 1 The wind turbines shown may be mainframes, such as those suitable for large power plants on wind farms. The diameter of the rotor can be up to 150m or more. [0003] Wind turbines are complex mechanical components and often operate in very harsh environments, such as on-shore or off-shore locations. As a result, wind turbines are prone to fatigue and wear, making maintenance of the wind turbine an important aspect of wind turbine design. Wind turbines must be regularly inspected and repaired as necessary. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00
CPCF03D1/0658Y02E10/726F03D1/003Y02E10/721Y02B10/30F03D80/50Y02E10/72Y10T29/49318
Inventor M·佩特森
Owner VESTAS WIND SYST AS
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