SHOCK ABSORBER Russian patent published in 2012 - IPC F16F3/87 F16F1/40 

FIELD: machine building.

SUBSTANCE: shock absorber comprises a shell for fixation to a base and an elastomer elastic element from two parts placed into a shell. The external surface of each part of the elastomer elastic element is formed with a cylindrical surface transferred from one side into a part of a toroid surface, and on the inner side - into a conical surface. Cylindrical grooves are evenly arranged on a conical surface of each part of an elastomer elastic element radially to an axis of a shock absorber. In the centre of each part of the elastomer elastic element at the side of the conical surface there is a bore in the form of a part of the inner toroid surface. In the central hole of the elastomer elastic element there is a bushing. The bushing is arranged with a ledge in the form of an orifice, with a cylindrical bore under an orifice and a vertical journal in the lower end of the bushing. The external and internal surfaces of the toroid part of the elastic element are equipped with circular ledges of a trapezoid profile. On the tops of external toroid surface there are circular planes formed for installation on the upper and lower sides of the orifice. In the lower elastic element at the side of the circular plane there is a hole. The shell is arranged of two parts in the form of sleeves in the form of truncated cones with central holes in each bottom of the sleeve. Parts of the shell are rigidly connected with each other along the end plane. Conical surfaces of elastic elements are inverted into the bottom of sleeves. One end of the bushing is taken out through a hole in the bottom of the first sleeve for connection to the equipment. The lower end of the bushing is inverted in the hole of the second sleeve. Elastic elements are installed between the orifice and the bottom of sleeves due to preliminary pressing.

EFFECT: increased permissible level of vibration and impact actions without increased dimensions of a shock absorber, increased reliability of a shock absorber and efficiency of vibration insulation.

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