RUBBER-METAL VIBRATION ISOLATION DEVICE Russian patent published in 2018 - IPC F16F3/12 F16F7/04 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to mechanical engineering. Device comprises of inner and outer tubular profiles joined at the top with a plug made in the form of a bushing. Vibration isolator is made in the form of a coil spring with a flange. Viscoelastic shell is installed in the gap between the tubular profiles and is connected by hot vulcanization with the bushing, spring and flange. Spring is permanently connected to the bushing and flange by means of screw grooves formed on them and fixed in places of connection with them by fixing elements. Between the upper bushing and the lower flange, an additional resilient element is provided, containing the lower and upper support plates. Between the plates coaxially the external with right and internal with left angles of turns rise springs are installed. Bottom support plate is base on which the bottom flanges of springs are rigidly secured. Between the top support plate and top flange of the internal spring the dry friction damper is installed. Damper consists of two contacting cylindrical discs. Bottom disc is rigidly linked with top flange of the internal spring. Top disc is rigidly linked with the top support disk. On facing each other surfaces of discs the concentric diametric grooves and inserted in them shoulders are made.

EFFECT: increased efficiency of vibration isolation in resonance mode is being achieved.

1 cl, 2 dwg