Patent ID: 9653963
Date: 2017-05-16
CPC Classifications: B67C,H02K

Claim:
1. A direct drive for a rotation machine, comprising a fixed machine part and a machine part which rotates about a vertical machine axis and is rotationally connected to the fixed machine part by a roller bearing arranged between the two machine parts that includes an outer bearing ring, an inner bearing ring and a plurality of rolling elements rolling between said bearing rings, and which is driven by a torque motor, a plurality of peripherally continuously arranged magnets on the rotating machine parts and a stator made up of a plurality of electric coils arranged on the fixed machine part, the rotating machine part being rotatable by an electromagnetic field generated by energizing the stator, in interaction with the magnets, to be set into a defined rotational motion, the stator on the fixed machine part is configured as a full ring of 360° , and covers all the magnets on the rotating machine part without any gap while being made up of a plurality of adjoining stator ring segments that are connected to one another through an electrical series connection, and a plurality of stop elements disposed between the stator ring segments that fix the stator ring segments in circumferential and in radial directions, wherein each of the individual stator ring segments comprises a ferrous metal yoke and a plurality of toothed metal sheets stacked on one another on an upper and a lower side of the yoke with copper coils wound around teeth of the sheets for forming individual electric coils.