A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Drive device for work machine
The invention discloses a drive device for work machine. The hydraulic drive device can improve the operability of multiple single-rod hydraulic cylinders. The drive device is configured so as to be equipped with: a closed circuit (A) wherein a first and a third hydraulic pump (12, 14) and a boom cylinder (1) are connected in a closed loop via switching valves (43a, 45a); multiple open circuits (E, F), equipped with a second and a fourth hydraulic pump (13, 15) and with switch valves (44a, 46a) that switch the destination to which operating oil flowing from the second and the fourth hydraulic pump (13, 15) is supplied; and a connecting pipeline (301) connected to the sides of the switching valves (44a, 46a) from which the operating oil flows, and connected to the closed circuit (A).
Drive device for work machine
The invention discloses a drive device for work machine. The hydraulic drive device can improve the operability of multiple single-rod hydraulic cylinders. The drive device is configured so as to be equipped with: a closed circuit (A) wherein a first and a third hydraulic pump (12, 14) and a boom cylinder (1) are connected in a closed loop via switching valves (43a, 45a); multiple open circuits (E, F), equipped with a second and a fourth hydraulic pump (13, 15) and with switch valves (44a, 46a) that switch the destination to which operating oil flowing from the second and the fourth hydraulic pump (13, 15) is supplied; and a connecting pipeline (301) connected to the sides of the switching valves (44a, 46a) from which the operating oil flows, and connected to the closed circuit (A).
Drive device for work machine
SHIMIZU JURI (author) / SAITOH TEPPEI (author) / MIZUOCHI MARIKO (author) / HIRAKU KENJI (author) / ISHII AKINORI (author) / TAKAHASHI HIROMASA (author) / KUSAMA TAKASHI (author)
2015-11-18
Patent
Electronic Resource
English