VEHICLE WITH SELF-LOADING AND SELF-UNLOADING DEVICES Russian patent published in 1995 - IPC

FIELD: self- propelled machines. SUBSTANCE: vehicle has self-propelled chassis 1 and frame of chassis. Frame is formed by two half-frames 2,3, which are pivotally interconnected by vertical pivot joint 4 for rotation in horizontal plane. Half-frame 2 carries column 5, which is rotated by hydraulic cylinder 9 in horizontal plane. Cargo boom 6 is mounted on column 5 for rotation in vertical plane by hydraulic cylinder 10. Handle 7 is pivotally secured on the end part of boom 6 for rotation in vertical plane by hydraulic cylinder 11. Cargo gripper formed as bucket 8 is pivotally secured on handle end portion. Body 13 is pivotally mounted on half-frame 3 for rotation in vertical plane by hydraulic cylinder 14. Hydraulic cylinder control system has double-section pump 15 with first section communicated through associated three-position distributing valves with boom rotating hydraulic cylinder cavities, cavities of handle and cargo gripper and with discharge device, and with second section communicated through associated distributing valves with column and body rotating hydraulic cylinder cavities and with discharge device. Cargo is transferred by bucket 8 from bucket loading zone into space above tipping body 13, where unloading is effectuated by inclining body 13 by hydraulic cylinder 14. Operations are combined in one cycle by providing simultaneous operation of one of hydraulic cylinders 10, 11 or 12 and one of hydraulic cylinders (9 or 14) of two independent hydraulic circuits of hydraulic control system. EFFECT: wider operational capabilities and enhanced reliability in operation. 2 dwg