DISK FRICTION VIBRATION DAMPER Russian patent published in 1995 - IPC

FIELD: railway transport. SUBSTANCE: vibration damper has rod installed between upper support (beam 1 above spring) and lower support (side frame 2). Mounted on rod are lower and upper fixed friction disks 5, 6 which are spring-loaded and locked from turning. Placed between fixed friction disks is movable friction disk 7. Rod is rigidly connected with movable friction disk and is made in form of screw 3 and non-friction thread nut 4. Nut is installed in lower support on journals 8. Upper support is coupled with upper fixed friction disk 6 by means of knife-edge support 10. Upper and lower fixed disks are connected by lock. EFFECT: reduced vibration amplitude. 2 cl, 2 dwg