DAMPING DEVICE

摘要

PURPOSE: A damping device is provided to effectively decrease vibration and noise through the operation of a piezo actuator. CONSTITUTION: A coupling hole interconnected with a coupling pipe(11) of a flange sleeve(1) passes through the center of a flange(2). A conical elastic body(3) is interposed between the flange sleeve and the flange to absorb the shock. A through hole(31) is formed in the elastic body. A nut(91) is fastened with a bolt(9) inserted to the coupling pipe. A bottom plate(5) is connected to the bottom of the flange sleeve. A piezo actuator(7) is connected to the central bottom of the bottom plate by bolting. An elevating plate(6) is connected to a piezo-electric device(71) of the piezo actuator. The elevating plate is moved up and down according to the reaction of the piezo-electric device.