SPRING DRY FRICTION DAMPER WITH RESILIENT DAMPING ELEMENT 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 upper support plate. On surfaces of the discs facing each other there are concentric diametric spherical surfaces: grooves and their projections. Top disc is made from steel, and the bottom one - from a friction material. Cylindrical resilient damping element coaxially located inside the inner spring is rigidly attached to the bottom cylindrical disc.

EFFECT: higher efficiency of damping in the resonance mode is provided.

1 cl, 2 dwg