ELECTROMAGNET Russian patent published in 1999 - IPC

FIELD: mechanical engineering; driving miscellaneous movable parts in industry and agriculture. SUBSTANCE: electromagnet has T-shaped main armature 4 connected to ferromagnetic additional armature 5, E-shaped core 2 with axial and side stacks of different length, that of axial stack making up 10 to 30% of side stacks. Length of additional armature 5 equals that of axial stack and its area makes up 10 to 30% of sectional area of T-shaped armature vertical part. Electromagnet provides for high tractive forces in beginning of travel and lower forces at its end, that is, at minimal stack-to- armature gap thereby reducing impact loads on electromagnet tables. EFFECT: improved reliability and service life of electromagnet. 1 dwg