WINDING TECHNIQUE FOR COMMUTATOR MACHINE ARMATURES (OPTIONS) Russian patent published in 1999 - IPC

FIELD: electrical engineering; miscellaneous armature windings such as herringbone ones. SUBSTANCE: winding technique involves installation of armature shaft carrying commutator in centers of device, fixation of starting and finishing leads and wire loops, positioning of conductor relative to armature slots, and its displacement by means of wire drawer; finishing lead and wire loops are connected to respective commutator segments, wires are placed in armature slots, passed through wire drawer spinnerets, and wire turns are stretched; then armature is wound, wire drawer is turned at inlet through design pitch about armature shaft axis and displaced along the latter, whereupon wire is removed from spinneret and loosened. Armature shaft may be optionally turned through design pitch about its axis and displaced inside motionless wire drawer. In the process, starting and finishing leads of wire are wound simultaneously so that coils and turns are placed absolutely symmetrically and each next coil is supported by preceding one. EFFECT: improved mechanical strength of winding. 2 cl, 4 dwg