ELECTROMAGNET Russian patent published in 1997 - IPC

FIELD: electric drives of shoe brakes, materials-handling machines and mechanisms. SUBSTANCE: DC electromagnet with two effective magnetic gaps has case with control winding, supporting flange with stop, flange with internal collar provided with through hole that forms inner edge where it crosses end surface of collar and external edge at exit from flange or at point of hole translation to its coaxial depression of larger diameter on side of flange external surface, and plunger armature with rod. Novelty is that cylindrical surface of armature has drilling forming two steps one of which is between inner edge of through hole and inner end surface of flange and other step, with armature in initial position, is approximately in plane of external edge of through hole; if flange has depression coaxial to through hole on side of external flange surface, this depression that shifts outer edge of through hole, is made so that distance between inner end surface of flange and outer edge of through hole is approximately equal to wall thickness of internal collar. EFFECT: improved design. 2 cl, 2 dwg