HYDRAULIC DRIVE Russian patent published in 1997 - IPC

FIELD: mechanical engineering; construction and road building machines. SUBSTANCE: hydraulic drive has supply unit 1 including motor connected through clutch with pumps communicating through distributors with working spaces of operating hydraulic motors, and counterweight frame 6. Supply unit 1 is installed on counterweight frame 6 secured on slewing platform of machine by means of articulated parallelogram 8 formed by kinematic rod 9 and rocker 10 whose third hinge joint is coupled through power rod with boom of working equipment. Slewing gears 15 are installed in main lines through which distributors communicate with working spaces of operating hydraulic motors. EFFECT: enlarged operating capabilities. 1 dwg