METHOD FOR REGULATING THE THROW ANGLE OF A VIBRATING SIEVE OR FEEDER

摘要

APPLICANT: MORGARDSHAMMAR AKTIEBOLAGTITLE: METHOD FOR REGULATING THE THROW ANGLE OF AVIBRATING SIEVE OR FEEDERABSTRACT OF THE DISCLOSUREIn a sieve or feeder there are two out-of-balance weightsrotating in opposite directions, each driven by its own motor,preferably of asynchronic type. Together they achieve ashaking movement, in which the out-of-balance weights, bymechanical coupling, will normally force the motors to keepsuch a speed and phase that they will be synchronized. Anelliptical stroke can be obtained thereby if the out-of-balanceweights are different and if the center of gravity of theshaken mass is suitably placed. The direction of stroke can bealtered by changing the ratio between the powers supplied tothe two motors.