Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
WORK MACHINE HYDRAULIC DRIVE DEVICE
Provided is a hydraulic drive device that is provided in a work device and with which it is possible to obtain a high energy-saving effect with a low-cost configuration while being equipped with a plurality of hydraulic actuators. The hydraulic drive device is provided with: first and second actuator groups; closed circuits (34, 36, 38, 40) connected to hydraulic actuators included in the first actuator group; a pump section including closed circuit pumps (44, 46, 48, 50); open circuits (41, 42) which include a plurality of variable throttle valves (64, 66, 68, 70, 71, 72) for changing the flow rate of working fluid supplied from a hydraulic pump included in the pump section to a hydraulic actuator; and circuit switching sections (84H, 84R, ...) having a first state in which the closed circuits (34, 36, 38, 40) are opened and the opened circuits (41, 42) are blocked, and a second state in which the closed circuits (34, 36, 38, 40) are blocked and the open circuits (41, 42) are opened.
WORK MACHINE HYDRAULIC DRIVE DEVICE
Provided is a hydraulic drive device that is provided in a work device and with which it is possible to obtain a high energy-saving effect with a low-cost configuration while being equipped with a plurality of hydraulic actuators. The hydraulic drive device is provided with: first and second actuator groups; closed circuits (34, 36, 38, 40) connected to hydraulic actuators included in the first actuator group; a pump section including closed circuit pumps (44, 46, 48, 50); open circuits (41, 42) which include a plurality of variable throttle valves (64, 66, 68, 70, 71, 72) for changing the flow rate of working fluid supplied from a hydraulic pump included in the pump section to a hydraulic actuator; and circuit switching sections (84H, 84R, ...) having a first state in which the closed circuits (34, 36, 38, 40) are opened and the opened circuits (41, 42) are blocked, and a second state in which the closed circuits (34, 36, 38, 40) are blocked and the open circuits (41, 42) are opened.
WORK MACHINE HYDRAULIC DRIVE DEVICE
HYDRAULISCHE ANTRIEBSVORRICHTUNG FÜR ARBEITSMASCHINE
DISPOSITIF D'ENTRAÎNEMENT HYDRAULIQUE DE MACHINE DE TRAVAIL
SUGANO NAOKI (Autor:in) / HORI NAOTO (Autor:in) / MAEKAWA SATOSHI (Autor:in)
26.06.2019
Patent
Elektronische Ressource
Englisch