Drive mechanism for rotatably coupling a system part or a machine part

Abstract

The invention relates to a drive mechanism () for rotatably coupling a first system part or machine part, preferably an assembly (A), to a base, pedestal or frame or to another system part or machine part, for example for rotary positioning during the processing of large workpieces or during the moving of loads, which drive mechanism comprises two ring-shaped connecting elements () each having at least one planar connecting surface () and fastening means () that are arranged distributed in a crown shape therein and effect connection to different system parts or machine parts or the like, said two connecting elements () being arranged concentrically with each other and radially one inside the other with a gap-shaped interspace () in which are disposed one or more rows of rolling elements (), each row whereof rolls between two respective raceways () on the two connecting elements (), thus enabling same to rotate relative to each other, at least one connecting surface () and at least one raceway () being formed by machining or shaping a common base body. The invention is characterized in that at least one fully circumferentially extending row of magnets () is arranged inside the gap () on one connecting element () and at least one fully circumferentially extending row of coils () is arranged directly opposite said magnets on the other connecting element (). According to the invention, at least one fully circumferentially extending row of magnets is arranged inside the gap on one connecting element and at least one fully circumferentially extending row of coils is arranged directly opposite said magnets on the other connecting element.