Linear motor e.g. for machine tool or warp loom - has stator of toroidal coils alternating with annular laminations and rotor of conductor rings alternating with laminations

摘要

The linear motor with a cylindrical air gap, ring-shaped coils in the stator grooves and conductor rings in the rotor grooves has the stator core made from a stack of annular disks, alternating with the coils, retained by a cylindrical yoke. The rotor is also made from a stack of alternating disks and conductor rings, arranged around a cylindrical inner yoke. The stator and rotor disks are formed from laminations, the stator ones having a radial slit. The stator yoke may comprise several sets of laminations arranged longitudinally in discrete packets around the periphery of the stator core. The laminations are all made from soft magnetic iron or steel. ADVANTAGE - Ease of manufacture and assembly.