ACTUATING DRIVE FOR ADJUSTING THE PITCH ANGLE OF A ROTOR BLADE OF A WIND TURBINE, AND WIND TURBINE COMPRISING SUCH AN ACTUATING DRIVE

ACTUATING DRIVE FOR ADJUSTING THE PITCH ANGLE OF A ROTOR BLADE OF A WIND TURBINE, AND WIND TURBINE COMPRISING SUCH AN ACTUATING DRIVE

In general, the invention relates to wind turbines, the rotor blades of which can be adjusted in terms of their pitch angle. The invention relates in particular to an actuating drive for adjusting the pitch angle of a rotor blade of a wind turbine, comprising a large rolling bearing which comprises...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KREINER, Stephan, SCHULZE, Thomas, DAHL, Martin, SCHUSTER, Markus, WINKLER, Marcel, FINGERHUT, Christopher
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PRODUCING MECHANICAL POWER
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:In general, the invention relates to wind turbines, the rotor blades of which can be adjusted in terms of their pitch angle. The invention relates in particular to an actuating drive for adjusting the pitch angle of a rotor blade of a wind turbine, comprising a large rolling bearing which comprises two bearing rings that can be rotated relative to each other, and an actuator for rotating the two bearing rings relative to each other. According to the invention, the actuating drive comprises a ring channel cylinder, which is formed in one of the bearing rings, and at least one piston, which is received in the ring channel cylinder in a movable manner and is drivingly connected to the other bearing ring of the two bearing rings.