SPRING DRY FRICTION DAMPER Russian patent published in 2018 - IPC F16F7/04 F16F3/04 

FIELD: machine building.

SUBSTANCE: invention relates to machine building. Damper consists of the lower and the upper support plates. Between the plates coaxially and concentric the external with right and internal with left angles of turns rise springs are installed. Lower support plate is the base, on which the bottom flanges of the springs are rigidly secured. Between the upper support plate and the top flange of the internal spring a dry friction damper is installed. Damper consists of two contacting cylindrical discs. Bottom disc is rigidly linked with the 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. As discs material copper-based sintered friction material can be used. Additional resilient damping element is rigidly fixed between the lower support plate and the lower cylindrical disc.

EFFECT: higher efficiency of damping in resonance mode.

1 cl, 1 dwg