Device for disconnecting and braking a rotor of an electric machine
AssigneesSafran Aircraft Engines, Safran Landing Systems
InventorsDidier Brun, Huguette De Wergifosse, Gilles Eluard
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Abstract
This device for disconnecting and braking a rotor of an electric machine comprises an inner axis driven in rotation by the rotor and longitudinally movable between an engagement position and a disconnection position, the disconnection and braking device further comprising a longitudinally fixed nut and a mechanism or system for braking the rotation of the nut so that braking of the rotation of the nut urges the inner axis into its disconnection position and brakes the rotation of the rotor.
Claims9
A device for disconnecting and braking a rotor of an electric machine, characterized in that it comprises an outer shaft comprising a first coupling system located at one end of the outer shaft, and an inner axis comprising a second coupling system located at a first end of the inner axis and a tapping at a second end of the inner axis, the inner axis being driven in rotation by the rotor and longitudinally movable between an engagement position in which the second coupling system is coupled with the first coupling system and a disconnection position in which the second coupling system is not coupled with the first coupling system, the disconnection and braking device further comprising a nut longitudinally fixed around the second end and threaded so as to cooperate with the tapping of the second end of the inner axis, and a means for braking the rotation of the nut so that braking of the rotation of the nut urges the inner axis into its disconnection position and brakes the rotation of the rotor, the means for braking the rotation of the nut comprising a multi-disk brake comprising a first set of disks linked to the nut and a second set of disks linked to a casing of the electric machine.
Dependencies are inferred from the claim text.