System and method for replacing a pitch bearing

The present disclosure is directed to systems and methods for removing or installing a pitch bearing of a wind turbine. The method includes installing a first pulley block at an up-tower location of the wind turbine and configuring a second pulley block with the pitch bearing. A pulley cable is rout...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Willman Stephanie, Costain Kevin, Neumann Ulrich Werner, Johnson Michael R, Wilmot Theodore Steven, Davis Adam S, Pfeiffer Gaylon Mitchell, Hach Forrest Christopher
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CAPSTANS COMBINED OPERATIONS HAULING HEATING HOISTING HOISTS LIFTING LIGHTING MACHINE TOOLS MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS PRODUCING MECHANICAL POWER TACKLES, e.g. PULLEY BLOCKS TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS WINCHES WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The present disclosure is directed to systems and methods for removing or installing a pitch bearing of a wind turbine. The method includes installing a first pulley block at an up-tower location of the wind turbine and configuring a second pulley block with the pitch bearing. A pulley cable is routed from a ground location over the first pulley block to the second pulley block such that the second pulley block is configured to slide along the pulley cable. The method also includes rotating the pitch bearing to a tilted position. Thus, the method further includes lowering or lifting the pitch bearing in the tilted position so as to prevent the pitch bearing from colliding with the tower.