RAILWAY BALLAST CLEANING MACHINE Russian patent published in 2012 - IPC E01B27/10 

FIELD: transport.

SUBSTANCE: scraper conveyor chains are arranged vertically in plain perpendicular to machine lengthwise direction C and secured on machine frame axles by means of lever mechanisms. Drive sprocket of aforesaid chains are mounted at top section of said lever mechanisms while guide rollers to mount scraper chains under ballast are arranged at its bottom section. Scraper chain drive is arranged on every drive sprocket or on one of aid sprockets. Lever mechanism top sections comprises chain tensioning hydraulic cylinders while their bottom sections comprise hydraulic cylinders of setting ballast cutting-out width and its position relative to track axis. Turn axle of every lever mechanism is fitted on machine frame to allow vertical travel of scraper chains in plane perpendicular to machine lengthwise direction C and penetration of chains into ballast to different depth to form a slope, and lifting them into transport position.

EFFECT: decreased weight, higher efficiency and reliability.

4 cl, 3 dwg