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Lifting device and method for positioning of an unwieldy object

A technology for positioning devices and objects, which is applied in the direction of hoisting devices, wind turbine assembly, cranes, etc., can solve the problems of cables affecting installation, etc., and achieve the effect of improving positioning characteristics

Active Publication Date: 2013-03-20
IHC HOLLAND NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is windy, the use of cables will affect the installation

Method used

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  • Lifting device and method for positioning of an unwieldy object
  • Lifting device and method for positioning of an unwieldy object
  • Lifting device and method for positioning of an unwieldy object

Examples

Experimental program
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Embodiment Construction

[0023] figure 1 Side views of different positions of the lifting device 1 according to the invention are shown. The lifting device 1 is configured to lift a wind turbine blade 5 and position the wind turbine blade relative to the wind turbine. The hub is the central part of a wind turbine mounted on the generator drive shaft, the central part comprising a mounting structure for mounting two or more wind turbine blades. An embodiment of a mounting structure for a wind turbine blade is a flange provided with holes through which bolts of the wind turbine blade are pushed so that the wind turbine blade can be attached to the hub with nuts.

[0024] figure 1 Shown is the position of the wind turbine blade on the loading level, the position of the wind turbine blade attached to the lifting device, two positions in which the wind turbine blade is turned 180° about the axis of rotation 7a and the boom is in a substantially horizontal position, and The position of the movability of ...

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PUM

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Abstract

A lifting device configured to autonomously position a wind turbine blade in such a way that it can be mounted on a wind turbine tower. The lifting device (1) comprises a boom structure (2) and is furthermore provided with a positioning device (4) which is connected to the boom structure and can be displaced along the latter. The positioning device comprises a mounting structure (4f) for detachably mounting the wind turbine blade on the positioning device. The boom structure (2) and displacement structure (4a) of the positioning device (4) form an assembly for the approximate positioning of the mounting structure (4f) with respect to the wind turbine tower. The positioning device (4) furthermore comprises additional means (4d, 4e) for accurately positioning the wind turbine blade with respect to the wind turbine tower.

Description

technical field [0001] The present invention relates to a lifting device for positioning a heavy object so that said object can be attached to an elevated structure, wherein the lifting device does not come into contact with the elevated structure. In particular, the present invention relates to a lifting device for lifting and positioning a wind turbine blade such that the wind turbine blade can be attached to a hub on a nacelle located at the top of a wind turbine tower. Background technique [0002] From EP1925583 an apparatus and method for handling, positioning and mounting a wind turbine blade to a drive shaft is known. In known arrangements, the wind turbine blades are positioned horizontally or vertically relative to the drive shaft. The wind turbine blades are suspended in a frame which in turn is suspended on cables of the lifting device. When it is windy, using cables will interfere with the installation. [0003] International application WO200941812 describes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00E02D27/42B66C23/56
CPCE02D27/42E02B17/00B66C23/185B66C23/56B66C13/08Y02E10/726Y02E10/727B66C23/58F05B2230/61F05B2240/95F03D1/001F03D13/10E02D27/425Y10T29/49316B66C1/108Y02E10/72Y02P70/50B66C23/53F03D13/139B66C23/54
Inventor 库诺·约翰内斯·亚历山大·范登伯格
Owner IHC HOLLAND NV
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