ELECTROMAGNETIC VIBRATOR OF TORSIONAL VIBRATIONS Russian patent published in 2012 - IPC B06B1/04 

FIELD: machine building.

SUBSTANCE: vibrator contains the first and the second coaxial multipole magnetic conductors with a gap between their poles. Poles of the first magnetic conductor are provided with exciting coils connected to source of controlled direct-current voltage. Design of the second magnetic conductor provides it rotation by drive motor. In the gap between magnetic conductors with poles there is a cylinder armature with possibility of oscillation about centre is located, on the armature there are its magnetic conductors attached. Armature is attached to vibrating object.

EFFECT: providing possibility of operational and independent control of frequency of torsional vibrations by change in rotation speed of drive motor, and of their values - by current change in exciting coils.

5 dwg