DRIVE OF EARTH-MOVING MACHINE WORKING MEMBER Russian patent published in 1998 - IPC

FIELD: earth-moving machinery and equipment. SUBSTANCE: drive for working member of earth-moving machine has hydraulic pump, hydro-pneumatic accumulator, hydraulic motor which is connected with working member through reduction unit. Mounted on shaft of hydraulic motor is flywheel. Installed in pressure line of hydraulic motor is hydraulic accumulator. Parameters of hydro-pneumatic accumulator and flywheel are determined from relations covering such characteristics as moment of flywheel inertia, hydro-pneumatic accumulator charging pressure, working volume of hydro-pneumatic accumulator, average moment of resistance to rotation of working member and its amplitude, working volume of hydraulic motor, and others. Aforesaid configuration of drive helps increase service life of hydraulic pump and hydraulic motor, and reduce installed power of working member drive. EFFECT: higher efficiency. 2 dwg