Wind turbine blade holding arrangement

Inactive Publication Date: 2014-10-23
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0006]It is therefore an advantage to provide an improved blade

Problems solved by technology

The shape of a wind turbine rotor blade is quite complex, comprising an airfoil portion and also a circular root end portion for mounting to the hub of the wind turbine.
It is important to transport such blades without damage from a factory site to an installation site, since any surface damage detracts from the blade's aerodynamic performance and can result in costly repairs.
Measures to protect the blades during handling and transport contribute significantly to the overall cost of a wind turbine.
Furthermore, because of their complex shape and because of the size of the conventional supporting arrangements that must be used for support and p

Method used

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Example

[0028]Other objects and features of the present invention will become apparent from the following detailed descriptions considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention:

[0029]FIG. 1 shows a blade in a first storage stage, supported by a root end foot and a tip clamp of a holding arrangement according to an embodiment of the invention;

[0030]FIG. 2 shows the blade of FIG. 1, supported also by a root frame;

[0031]FIG. 3 shows the blade of FIGS. 1 and 2 during a lifting step;

[0032]FIG. 4 shows a tip clamp and a tip frame of a holding arrangement according to an embodiment of the invention;

[0033]FIG. 5 shows a detail of frame of a holding arrangement according to an embodiment of the invention;

[0034]FIG. 6 shows a blade during a road transport stage, supported by a holding arrangement according to an embodiment of the inven...

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Abstract

A wind turbine blade holding arrangement is described comprising a root frame for securing to a root portion of a blade; an airfoil clamp for arranging about an airfoil portion of the blade; and an airfoil frame for supporting the airfoil clamp wherein the root frame and tip clamp are realized for use in a first blade orientation in a first storage and transport stage of the blade and also for use in a second blade orientation in a second storage and transport stage of the blade, wherein the first and second blade orientations are essentially at right angles to each other. A method of handling a number of wind turbine blades is also described.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to European Application No. 13164914.7, having a filing date of Apr. 23, 2013, the entire contents of which are hereby incorporated by reference.FIELD OF TECHNOLOGY[0002]The invention describes a wind turbine blade holding arrangement, and a method of handling a number of wind turbine blades.BACKGROUND[0003]Rotor blades for wind turbines can be very long, easily reaching lengths of 100 meters or more for the larger wind turbines. The shape of a wind turbine rotor blade is quite complex, comprising an airfoil portion and also a circular root end portion for mounting to the hub of the wind turbine. The airfoil portion usually tapers to a fairly thin tip. It is important to transport such blades without damage from a factory site to an installation site, since any surface damage detracts from the blade's aerodynamic performance and can result in costly repairs. Measures to protect the blades during handling a...

Claims

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Application Information

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IPC IPC(8): F01D5/32
CPCF01D5/32F03D13/40Y02E10/72Y10T29/49336B60P3/40F03D80/00
Inventor LIEBERKNECHT, KIMMASTRUP, AAGESVINTH, KENNETH HELLIGSOEWIELAND, MAJA ROSE
Owner SIEMENS AG
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