Patent ID: 7451963

Claim:
Leading sheave winder or a drum winder comprising an electric motor ( 5 ) for driving winding ropes ( 11 ), wherein a rotor ( 6 ) of said motor is connected to a cylinder jacket ( 4 ) of the leading sheave winder ( 2 ) or drum and its stator frame ( 7 ) is secured on a support structure that has a hollow shaft ( 3 ), the motor ( 5 ) being located within the cylinder jacket ( 4 ) and between plates ( 13 ) of the leading sheave winder ( 2 ) or drum in a cavity ( 12 ), where said cavity can be supplied with cooling air to ventilate the motor ( 5 ) from an exterior, characterized in that the hollow shaft ( 3 ) is formed by at least two half shafts ( 18 , 19 ), which form a support structure ( 10 ) with at least one support disc and the stator frame ( 7 ).