METHOD OF EXCITING RESONANT MECHANICAL VIBRATIONS AND DEVICE TO THIS END Russian patent published in 2013 - IPC B06B1/16 

FIELD: process engineering.

SUBSTANCE: invention relates to vibrators intended for exciting resonant mechanical vibrations to be used in vibratory mills. Proposed method consists in exciting resonant vibrations by intermittent forced variation of inertial parameters of vibratory system composed by working tool hinged to resilient suspension and parametric vibroexciter. It comprises rotor with roller ways solids of revolution fitted therein. Working tool is hinged in two mutually perpendicular directions in two axes to adjust vibratory system by setting stiffness of said suspension and rotor rpm. Additionally, reactive component is introduced to be coupled with main component by resilient system to excite progressive resonant antiphase vibrations of both components to ensure synergic effect of the entire system. Vibratory system is adjusted by setting stiffness of resilient system between both components, rotor angular velocity and rpm, and intrinsic frequency of vibrations of the solids of revolution. Proposed device comprises aforesaid vibratory system with equalised rotor fitted on motor shaft with two open-ended annular support tracks arranged in symmetry about two mutually perpendicular diameter of the rotor. Their centers are shifted from rotor rotational axis for equal distances toward support track provided with identical balances solids of revolution. Rotor is composed of a set of identical discs. Working tool is furnished with, at least, two hollow cylinders arranged thereat in symmetry about rotor rotational axis.

EFFECT: submicron and nano-size grinding, decreased weight of structural components.

4 cl, 2 dwg