VIBRATION ISOLATOR WITH VARIABLE DAMPING STRUCTURE Russian patent published in 2007 - IPC F16F7/08 

FIELD: mechanical engineering.

SUBSTANCE: invention can be used for vibration isolation of processing equipment. Proposed vibration isolator with variable damping structure contains housing with fitted-in rod and piston. Vibration isolated mass held by springs is secured on end of rod. Dry-friction damper is made in form of friction bushing with limiting stops on end faces whose inner surface is in contact with piston, thus forming friction pair, friction coefficient f₁. Outer surface of bushing is in contact with at least two additional friction elements, thus forming friction pair, friction coefficient f₂. Adjusting screws provided pressing of friction elements to bushing. Said adjusting screws are coupled with slave servo motor, for instance, worm type, with self-braking transmission. Signal to switch on servomotor is sent by microprocessor which controls operation of dry-friction damper according to preset characteristic and is coupled with vibration acceleration transducer, for instance, piezocrystal one.

EFFECT: increased efficiency of vibration isolation.

2 cl, 2 dwg