ELECTROMAGNETIC SHEET FILTER Russian patent published in 2002 - IPC

FIELD: metallurgy; electromagnetic roller tables. SUBSTANCE: electromagnetic sheet piler is designed for use in electromagnetic rabbles employed for transportation and piling of sheets. Piler has bed frame with longitudinal beams on which electromagnetic rollers are mounted, each consisting of carrying beam with bearing housings secured in mounting holders, fixed field coils and magnetic circuit installed for rotation and made up of hole disks installed in pairs and fixed on shaft. Ends of shafts of electromagnetic rollers beyond the limits of pole disks mounted on shafts in pairs and/or bearing housings and mounting holders are made of nonmagnetic material. Fixed field coils of even or odd number installed in electromagnetic roller are connected to DC voltage source so that neighbor fixed field coils in each electromagnetic roller create oppositely directed magnetic fields in electromagnetic roller and unlike polarity of pole disks of neighbor electromagnetic rollers arranged opposite to each other. Width of transported sheets and parameters of electromagnetic sheet piler are in relationships described by the following equation: (a-nτ)/τ≤1, where a is width of transported, n is number from natural series, τ- is pitch of pole disks installed in pairs on shafts of electromagnetic rollers at τ≥D, where D is outer diameter of pole disks of electromagnetic rollers and D≤0,67t, where t is pitch of electromagnetic rollers of sheet piler. EFFECT: increased load lifting capacity of sheet piler, enlarged range of sheets transported by sheet piler, both in width and thickness. 3 dwg