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A platform for research: civil engineering, architecture and urbanism
HYDRAULIC SYSTEM FOR WORK MACHINE AND WORK MACHINE
PROBLEM TO BE SOLVED: To provide a hydraulic system for a work machine capable of performing float movement and horizontal movement, which can suitably perform both of the float movement and the horizontal movement, and a work machine.SOLUTION: A hydraulic system for a work machine includes a first hydraulic actuator 14, a second hydraulic actuator 17 different from the first hydraulic actuator, a first control valve 20A having a float portion 40 performing float movement of the first hydraulic actuator and controlling the first hydraulic actuator, a second control valve 20B for controlling the second hydraulic actuator, a first oil passage 21 connected to the first hydraulic actuator, a second oil passage 22 connected to the second hydraulic actuator, a horizontal control section 41 connected with the first oil passage and the second oil passage and performing the horizontal movement of the second hydraulic actuator, and a control device 42 for stopping the horizontal movement during the float movement.SELECTED DRAWING: Figure 1
【課題】フロート動作及び水平動作が可能な油圧システムにおいて、両者を適正に作動させることができる作業機の油圧システム及び作業機を提供する。【解決手段】作業機の油圧システムは、第１油圧アクチュエータ１４と、第１油圧アクチュエータとは異なる第２油圧アクチュエータ１７と、第１油圧アクチュエータのフロート動作を行うフロート部４０を有し、且つ、第１油圧アクチュエータを制御する第１制御弁２０Ａと、第２油圧アクチュエータを制御する第２制御弁２０Ｂと、第１油圧アクチュエータに接続された第１油路２１と、第２油圧アクチュエータに接続された第２油路２２と、第１油路及び第２油路に接続され、且つ、第２油圧アクチュエータの水平動作を行う水平制御部４１と、フロート動作時に水平動作を停止する制御装置４２と、を備えている。【選択図】図１
HYDRAULIC SYSTEM FOR WORK MACHINE AND WORK MACHINE
PROBLEM TO BE SOLVED: To provide a hydraulic system for a work machine capable of performing float movement and horizontal movement, which can suitably perform both of the float movement and the horizontal movement, and a work machine.SOLUTION: A hydraulic system for a work machine includes a first hydraulic actuator 14, a second hydraulic actuator 17 different from the first hydraulic actuator, a first control valve 20A having a float portion 40 performing float movement of the first hydraulic actuator and controlling the first hydraulic actuator, a second control valve 20B for controlling the second hydraulic actuator, a first oil passage 21 connected to the first hydraulic actuator, a second oil passage 22 connected to the second hydraulic actuator, a horizontal control section 41 connected with the first oil passage and the second oil passage and performing the horizontal movement of the second hydraulic actuator, and a control device 42 for stopping the horizontal movement during the float movement.SELECTED DRAWING: Figure 1
【課題】フロート動作及び水平動作が可能な油圧システムにおいて、両者を適正に作動させることができる作業機の油圧システム及び作業機を提供する。【解決手段】作業機の油圧システムは、第１油圧アクチュエータ１４と、第１油圧アクチュエータとは異なる第２油圧アクチュエータ１７と、第１油圧アクチュエータのフロート動作を行うフロート部４０を有し、且つ、第１油圧アクチュエータを制御する第１制御弁２０Ａと、第２油圧アクチュエータを制御する第２制御弁２０Ｂと、第１油圧アクチュエータに接続された第１油路２１と、第２油圧アクチュエータに接続された第２油路２２と、第１油路及び第２油路に接続され、且つ、第２油圧アクチュエータの水平動作を行う水平制御部４１と、フロート動作時に水平動作を停止する制御装置４２と、を備えている。【選択図】図１
HYDRAULIC SYSTEM FOR WORK MACHINE AND WORK MACHINE
作業機の油圧システム及び作業機
TOMITA ATSUSHI (author) / FUKUDA YUJI (author) / KONISHI HIRONARI (author)
2017-06-15
Patent
Electronic Resource
Japanese