VIBRATION EXCITER Russian patent published in 1999 - IPC

FIELD: vibration-type machinery and equipment. SUBSTANCE: this relates to unbalanced-type vibration exciters which can be used in vibration machinery for classification, sorting, and transportation of bulk materials. Vibration exciter has power-driven shaft which carries stationary unbalanced weight and movable unbalanced weight. Unbalanced part of stationary unbalanced weight is located in internal space of movable unbalanced weight. At changing direction of rotation of power-driven shaft, static moment of unbalanced weights is also changed and this ensures reduction of power needed for treating bulk materials depending on their physical and mechanical characteristics and moisture content. Aforesaid embodiment of exciter simplifies its design due to possibility of changing static moment of unbalanced weights by reversing direction of rotation of power-driven shaft. EFFECT: higher efficiency. 5 dwg