Using a rotor lock plate for redistribution of shaft weight and loads
AssigneeGeneral Electric Renovables Espana, S.L.
InventorJacob Johannes Nies
Life of this patent
Estimating the term…
Abstract
A wind turbine has a main shaft line with a main shaft, a rotor hub, and a rotor lock plate having an opening for receiving a pin, and a nacelle having a bed plate. A multi-part main bearing has a housing, an inner ring, and an outer ring. A pin is moveable between a first, second, and third position, and is retracted from the opening in the first position so that the main shaft line is rotatable. The pin is inserted into the opening in the second position so that the main shaft line is not rotatable. In the third position, the pin is shifted and the main shaft line is supported by the pin such that the weight of shaft and loads on the main shaft are not transmitted through the multi-part main bearing but are transferred via the rotor lock plate and the pin to the bed plate.
Claims10
A wind turbine, comprising:
- a main shaft line, the main shaft line comprising a main shaft, a rotor hub, a rotor lock plate comprising an opening for receiving a pin;
- a nacelle, the nacelle comprising:
- a bed plate;
- a multi-part main bearing, the multi-part main bearing comprising a housing, an inner ring, and an outer ring;
- and
- a pin moveable between a first position, a second position, and a third position, wherein the pin is retracted from the opening in the first position so that the main shaft line is rotatable, wherein the pin is inserted into the opening in the second position so that the main shaft line is not rotatable, and wherein, in the third position, the pin is shifted with respect to the second position so that the main shaft line is supported by the pin such that the weight of shaft and loads on the main shaft are not transmitted through the multi-part main bearing but are transferred via the rotor lock plate and the pin to the bed plate.
Dependencies are inferred from the claim text.