SCRAPER BOWL Russian patent published in 1997 - IPC

FIELD: building machines. SUBSTANCE: scraper bowl has bottom with blade, front, lateral and back movable walls and load mechanism in the form of auger. Auger is connected to the engine and installed on the cross beam so as to be rotated in crosswise, vertical plane using hydraulic cylinder. Operating cavities of the hydraulic cylinder are open to cavities of the control hydraulic cylinder used to control back wall and two outlets of the hydraulic distributor. Load mechanism has a hub for securing the auger. Hub is installed on the cantilevered tube on the bearing supports and related to the engine through detachable connection. Lift cavity of the rotation hydraulic cylinder is connected to one output of hydraulic distributor through throttle and the first return valve, the output of which is connected to the lift cavity. Cavity of expansion of back wall control hydraulic cylinder is connected to the first return valve through pressure hydraulic valve and second return valve. Inlet of the first return valve is connected to pressure hydraulic valve inlet and second return valve output. Descent cavities of revolve hydraulic cylinder and control cylinder recess are connected to the second outlet of hydraulic distributor. EFFECT: higher efficiency. 4 dwg