Crane with double wire guide and anchoring bracket arranged in the nacelle of a wind turbine
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United States of America Patent
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Aug 16, 2016
Issued Date -
N/A
app pub date -
Sep 8, 2013
filing date -
Nov 6, 2012
priority date (Note) -
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Abstract
A crane includes a double wire guide and anchoring bracket arranged in the nacelle of a wind turbine for hoisting-up and -down of heavy parts of the wind turbine arranged in the nacelle. The crane includes an external winch with wires, located near the base of the tower of the wind turbine, the winch being connected via the wire guide to a pulley block including a crane hook at the end of the crane outrigger arm. The particular by the wire guide is, that it by two set of pivotally mounted wire wheels, mounted respectively on a fixed bracket part of the crane, and the pivotal mounted part of the crane, controls the wires of the crane within an pivot interval between +/−175 degrees from a 0-reference point, so that the wires never touch each other.
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