Electromagnetically actuated, single-surface friction coupling, without a rotor slip ring

摘要

The invention proposes an electromagnetically actuated, single-surface friction coupling without a rotor slip-ring, having a rotor element (2), a fixed magnet body (6) and a pot-shaped armature element (28) mounted so that it can be displaced axially. A cylindrical jacket shaped area (28B) of the armature element (28) extends with a narrow air gap along an outer jacket surface (12) of the magnet body (6). Between the armature element (28) and a friction surface (30) of the rotor element there is a working air gap (S) that can be bridged. To keep the moment of inertia on the drive output side as small as possible, it is proposed to arrange the rotor element (2) on the drive output side and the armature element (28) on the drive input side.