Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYDRAULIC DRIVING DEVICE OF WORK MACHINE
PROBLEM TO BE SOLVED: To keep excellent operability of a hydraulic actuator, even in a state where pressure is sufficiently accumulated in a pressure accumulator.SOLUTION: A hydraulic driving device of a work machine includes a hydraulic actuator 3, a tank 20, a flow control valve 6, and a pressure accumulator 300. The hydraulic driving device further includes: a first pressure compensation valve 201 configured to control fore-and-aft pressure difference of the flow control valve 6 to constant; and a second pressure compensation valve 202 arranged between the pressure accumulator 300 and the tank 20, and configured to control fore-and-aft pressure difference containing the flow control valve 6 and the first pressure compensation valve 201 to constant.SELECTED DRAWING: Figure 2
【課題】蓄圧器が十分蓄圧されている状態においても、油圧アクチュエータの操作性を良好に保つ。【解決手段】油圧アクチュエータ（３）と、タンク（２０）と、流量制御弁（６）と、蓄圧器（３００）と、を有する作業機械の油圧駆動装置において、流量制御弁（６）の前後差圧を一定に制御するための第一の圧力補償弁（２０１）と、蓄圧器（３００）とタンク（２０）との間に配置され、流量制御弁（６）および第一の圧力補償弁（２０１）を含めた前後差圧を一定に制御するための第二の圧力補償弁（２０２）と、を備える。【選択図】図２
HYDRAULIC DRIVING DEVICE OF WORK MACHINE
PROBLEM TO BE SOLVED: To keep excellent operability of a hydraulic actuator, even in a state where pressure is sufficiently accumulated in a pressure accumulator.SOLUTION: A hydraulic driving device of a work machine includes a hydraulic actuator 3, a tank 20, a flow control valve 6, and a pressure accumulator 300. The hydraulic driving device further includes: a first pressure compensation valve 201 configured to control fore-and-aft pressure difference of the flow control valve 6 to constant; and a second pressure compensation valve 202 arranged between the pressure accumulator 300 and the tank 20, and configured to control fore-and-aft pressure difference containing the flow control valve 6 and the first pressure compensation valve 201 to constant.SELECTED DRAWING: Figure 2
【課題】蓄圧器が十分蓄圧されている状態においても、油圧アクチュエータの操作性を良好に保つ。【解決手段】油圧アクチュエータ（３）と、タンク（２０）と、流量制御弁（６）と、蓄圧器（３００）と、を有する作業機械の油圧駆動装置において、流量制御弁（６）の前後差圧を一定に制御するための第一の圧力補償弁（２０１）と、蓄圧器（３００）とタンク（２０）との間に配置され、流量制御弁（６）および第一の圧力補償弁（２０１）を含めた前後差圧を一定に制御するための第二の圧力補償弁（２０２）と、を備える。【選択図】図２
HYDRAULIC DRIVING DEVICE OF WORK MACHINE
作業機械の油圧駆動装置
ITO MASAMICHI (Autor:in) / OKI TAKATOSHI (Autor:in) / TAKAHASHI KIWAMU (Autor:in)
05.04.2018
Patent
Elektronische Ressource
Japanisch