KOCHETOV'S SPRING WITH BUILD-IN DAMPER Russian patent published in 2015 - IPC F16F3/04 F16F1/06 F16F15/67 

FIELD: machine building.

SUBSTANCE: spring is made as cylindrical screw spring and contains two parts with opposite looking ends. First part of the spring has turns with rectangular cross-section with rounded edges, and second part is made hollow. Opposite looking end of the first part is located in cavity of the second part. Clearances of segment profile of the spring contact parts are filled with antifriction grease. At end of the second part of the spring a sealing cup is installed to prevent grease leaks. The first part of the spring is enclosed by the pipe put of the dampening material, for example, polyurethane.

EFFECT: increased efficiency of vibration isolation in resonance mode.

1 dwg