DEVICE FOR MODIFYING THE ECCENTRICITY OF A ROTOR.

摘要

The present invention refers to a device where the rotation of two eccentric rings about the axial axis thereof may displace the global mass centre in a normal intermediate plane with regard to the rotating axis of the rings. The rings acquire the physic-geometrical property of being eccentric by means of external masses screwed to the axis in order to be unbalanced. The rotation of both eccentric rings, combined with the effect of displacing in the plane the mass centre, is used for counteracting the physical rebalance of the axle of a rotor with the purpose of eliminating the vibrations caused thereby. The movement of the eccentric rings is manipulated by electric motors physically connected to the rings by means of bands and chains. The use of servomotors allows the device to block the position of the eccentric rings for maintaining a stable operation.