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Blade replacement and installation tool

A technology for installing tools and blades, applied in the field of lever arms, replacing blades on the hub of wind turbine towers, which can solve problems such as danger and difficulty

Active Publication Date: 2019-10-01
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With blade counterweights weighing for example 15 tons, using counterweights for rotation is very challenging, difficult and dangerous, and the risk of making a mistake in adjustment can have fatal consequences

Method used

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  • Blade replacement and installation tool
  • Blade replacement and installation tool
  • Blade replacement and installation tool

Examples

Experimental program
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Effect test

Embodiment Construction

[0099] figure 1 An exemplary embodiment of a wind turbine 1 with a rotor assembly is shown. The wind turbine 1 comprises a wind turbine tower 2 having a bottom end mounted to a foundation 3, which may be an onshore foundation as well as an offshore foundation. The nacelle 4 is rotatably connected to the top end of the wind turbine tower 2, eg via a connection to a control system yaw bearing (not shown). The rotor 5 is rotatably connected to the nacelle 4, for example via a main shaft (not shown). The rotor 5 comprises a hub 6 on which at least two, for example three, wind turbine blades 7 are mounted. Each wind turbine blade includes a tip and a root. The hub 6 comprises a front end 6 a facing away from the nacelle 4 and a rear end facing the nacelle 4 . The wind turbine blade 7 may be as figure 1 A conventional full pitch blade is shown, or a partial pitch blade (not shown) with an inner blade part and an outer blade part. A pitch bearing (not shown) is arranged between...

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Abstract

Blade replacement and installation tool for a wind turbine (1), comprising a lever arm (9) with a first end (10) and a second end (11), where the tool further comprises: at least one gear motor (12),one bearing (13) and one gear ring (14) which are relatively arranged at the first end (10) of the lever arm (9), the gear motor (12) being fixed to the lever arm (9) and the gear ring (14) being configured for installation on a hub, where the gear ring (14) is geared with the at least one gear motor (12), where the bearing (13) is positioned between the gear ring (14) and the lever arm (9) and where a flexible connection member (15) is arranged at the second end (11) of the lever arm (9) configured for fixation to a ground fixation point, whereby a less complicated, easier to use and much safer tool for operating a wind turbine (1) is achieved.

Description

[0001] field of invention [0002] The invention relates to a blade replacement installation tool for a wind turbine comprising a lever arm having a first end and a second end. [0003] The invention also relates to a method for replacing blades mounted on a hub on a tower of a wind turbine having a rotor lock. [0004] Background of the invention [0005] Prior to the development of the present invention, other methods of replacing blades on wind turbines were known, for example: [0006] US patent application US2016 / 090962A1, with a counterweight system for a wind turbine, the system comprising a beam comprising connectors suitable for attachment to a mounting surface, the system comprising counterweights coupled to the beam. [0007] European patent application EP2650537A1, where a counterweight is attached to the hub, whereby the mass comprised by the counterweight causes a counter torque around the axis of rotation of the hub. The counterweight is mounted to the hub thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/10
CPCF03D13/20F05B2230/61F05B2230/70F03D13/10F05B2260/31Y02E10/72Y02E10/728Y02P70/50
Inventor 汤马斯·克拉格·尼尔森
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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