UNLOADED LOW-FREQUENCY VIBRATION ISOLATOR OF LARGE CARRYING CAPACITY Russian patent published in 2014 - IPC F16F3/08 F16F1/362 

FIELD: machine building.

SUBSTANCE: invention refers to machine building industry. A vibration isolator includes a housing, two conical elastic sleeves arranged in it and made from wire material of metal rubber, a cover, a tightening element arranged in the central hole of sleeves and the cover and fastening parts. The housing is arranged inside a compression spring with a radial gap. The spring is supported from the housing flange and the vibration isolator bottom and rigidly fixed on them by means of covers composed of two semi-rings. A cylindrical wall of the housing projects on both sides of its conical base. The tightening element is made in the form of a hollow cylinder with a round conical flange. A flat supporting platform with central and threaded holes is made on outer surface of the flange. The tightening element is arranged in central holes of elastic sleeves. The conical cover is aligned on a smooth cylindrical part of the tightening element. An external support surface of the cover is flat. A round nut, under which elastic and lock washers are installed, is screwed on a threaded end of the tightening element. An unloading spiral compression spring with high flexibility is arranged inside the tightening element. A shock-proof cushion made from metal rubber material is fixed at the bottom of the tightening element.

EFFECT: improving vibration isolating properties and durability, and simplifying vibration isolator maintenance.

2 cl, 5 dwg