Device for adjusting the angle of incidence of a rotor blade...

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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F03D 7/02 (2006.01) F03D 11/00 (2006.01) F16H 57/04 (2010.01)

Patent

CA 2520799

The invention relates to a device for the targeted adjustment of the angle of incidence of a rotor blade (13) which is rotatably mounted, at the foot (14) thereof, on a hub (12) of a rotor (11) of a wind power installation (10). Said device comprises a gearing, a driving toothed wheel (21, 41) which meshes with said gearing (20, 40), and a lubricating device. According to the invention, said lubricating device is embodied in such a way that, due to a temporary displacement of the driving toothed wheel (21, 41) from an operating position into a lubricating position, it can be engaged with a defined point of the gearing (20) or the driving toothed wheel (41), respectively previously engaged with the driving toothed wheel (21) or the gearing (20, 40), in such a way that it transfers lubricant.

L'invention concerne un système permettant de régler de manière ciblée l'angle d'incidence d'une pale de rotor (13) montée de façon rotative par son emplanture (14) à un moyeu (12) d'un rotor (11) d'une éolienne (10). Ce système comprend une denture et un pignon d'entraînement (21, 41) s'engrenant avec cette denture (20, 40), ainsi qu'un dispositif de lubrification. Selon l'invention, ce dispositif de lubrification est conçu de telle sorte que, par un déplacement temporaire du pignon d'entraînement (21, 41) d'une position de fonctionnement à une position de lubrification, le dispositif de lubrification puisse venir en prise avec le point de la denture (20) ou du pignon d'entraînement (41) qui était précédemment en prise avec le pignon d'entraînement (41) ou la denture (20, 40), respectivement, de façon à permettre le transfert de lubrifiant.

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