VIBRATION EXCITER Russian patent published in 1997 - IPC

FIELD: vibratory machines used for manufacture of building materials and in mining. SUBSTANCE: unbalance vibration exciter is provided with magnetic support to reduce load on bearings of unbalance shaft. Magnetic support is provided with circular permanent magnets of radial magnetizing which are arranged in pairs. Similar poles of magnets are directed towards each other. Magnets are secured on unbalanced mass and in housing one inside other. Magnets secured on unbalanced mass are made in form of washers. Unbalanced mass is mounted on shaft for radial motion by means of flexible guide low-stiffness flat springs. EFFECT: enhanced efficiency. 2 cl, 4 dwg