Detachable pole assembly for dynamo electric machine stator

Claim 1

A dynamoelectric machine comprising: an armature; primary current windings and compensator coil windings; a yoke disposed around said armature and including: a plurality of adjacently disposed plates, said plates including aligned recesses that define a plurality of grooves along the outer yoke periphery, and a plurality of attachment flanges received in said grooves and being bonded to said yoke plates; a plurality of pole shoes mounted on said yoke, each pole shoe including: a base section formed of a plurality of adjacently disposed plates, said base plates defining shoulders supporting said primary current windings, and a tip section formed of a plurality of adjacently disposed plates, said tip plates defining a curved pole face and including aligned apertures defining at least one opening extending through said tip section remote from said pole face, said tip section further including: a connector bar disposed through said opening, and clamping means mounted at opposite ends of said connector bar for firmly clamping said tip plates together; said base and tip sections being relatively separable and including wall means that cooperatively define a plurality of slots receiving said compensator coil windings; a cluster of strand-like elements disposed in each slot between said wall means and said compensator coil windings, said elements being bonded together and to said wall means by a binder material so as to define a rigid brace supporting said compensator coil windings against oscillation in said slots; first releasable fastener means extending between said attachment flange and a respective base section to detachably secure said base section to said yoke; second releasable fastener means connected between said connector bar and said base section to secure said tip section to said base section; said second fastener means being operable independently of said first fastener means to draw said wall means together and clamp said compensator coil windings and said braces together in a manner allowing release of said primary current windings from said base section in the absence of removing said tip section from said base section.