Patent ID: 8998570
Filing Date: 2015-04-07
Classification: F03D,Y02E

Abstract:
1. A system for moving one or more shafts in a gearbox of a wind turbine nacelle, comprising: a gearbox for a wind turbine nacelle having one or more shafts movable with respect to the gearbox, said one or more shafts including at least a low speed shaft at one end of the gearbox and a high speed shaft at another end of the gearbox; a generator adjacent to the high speed shaft of the gearbox, the generator including a generator shaft for connection to the high speed shaft of the gearbox; an auxiliary device in a fixed position in relation to the gearbox; a connector connecting the auxiliary device to the generator shaft and separately connecting the auxiliary device to the high speed shaft of the gearbox in order to directly transfer force from the auxiliary device to move both of the high speed shaft and the generator shaft; and an activator for activating the auxiliary device; wherein when activated the auxiliary device transfers energy to move the one or more shafts; and the movement of the one or more shafts reduces detrimental effects to the gearbox during transportation or standstill.