COMBINED VIBRATION ISOLATOR BY KOCHETOV Russian patent published in 2017 - IPC F16F3/10 F16F7/01 

FIELD: machine engineering.

SUBSTANCE: vibration isolator consists of an elastomer array of a toroidal shape. The array is vulcanized to fastening plates. There are two sealed cavities inside the array. A spiral coil spring is installed in one cavity. The spring consists of two parts with on-coming ends. The first spring part has rectangular section turns with rounded edges, and the second part is made hollow. The facing end of the first part is located in the cavity of the second part. The segmental profile gaps of the contacting spring parts are filled with antifriction lubricant. The packing seal is mounted at the end of the second spring part to prevent the lubricant leakage. The first part of the spring is enclosed by the tube of a damping material. The gaps in the first part of the spring covered by the tube of damping material are filled with crumble of friction material.

EFFECT: providing constant rigidity and damping characteristics, improving efficiency of vibration isolation in resonance mode.

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