COMBINED ELASTICALLY DAMPING DEVICE Russian patent published in 2013 - IPC F16F5/00 F16F9/16 F16F1/362 

FIELD: machine building.

SUBSTANCE: device includes a base, and guide and shock-absorbing devices. A stock is rigidly fixed in the bottom of a cylindrical sleeve with formation of a tight annular cavity. Bottom of the cylindrical sleeve is fixed in the sleeve rigidly attached to the base of a protected object. A spring is located in the annular cavity and supported with its lower end face from the bottom and with its upper end from the piston. The piston is made in the form of a disk and located with a throttling gap relative to the stock. A cover plate that is movable relative to the stock is located in upper part of the stock. Cover plate consists of an annular flange with a seal and a sleeve rigidly attached to the flange and enveloping the outer surface of a cylindrical sleeve through the seal. Spring is located coaxially to the stock and its upper end face is supported from the cover plate and its lower end face is supported from the piston. A supporting element of the vibroisolated object is fixed on the cover plate. On the sleeve flange there rigidly fixed is an elastically damping device consisting of lower and upper support flanges of a plate type. Elastically damping element made from twisted wire of thread waste type is located between flanges. Upper threaded end of the stock is connected to a threaded hole in upper supporting flange. In the elastically damping device there is a through central hole for passage of the stock.

EFFECT: higher vibration isolation efficiency.

1 dwg