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A platform for research: civil engineering, architecture and urbanism
WORKING MACHINE, CONTROL METHOD OF WORKING MACHINE, AND CONTROL VALVE DEVICE
To provide a working machine which can reduce a size of a control valve device, a control method of the working machine, and the control valve device.SOLUTION: A control valve device 40 has a first body 41 and a second body 42. The first body 41 includes a first control valve V1. During a descending operation of a boom 14, the first control valve V1 can discharge a working fluid which flows out of a bottom chamber 16a of a boom cylinder 16. The second body 42 includes a second control valve V2. During the descending operation of the boom 14, the second control valve V2 can discharge the working fluid which flows out of the bottom chamber 16a of the boom cylinder 16, and during a prescribed operation other than the descending operation and an ascending operation of the boom 14, the second control valve can make the bottom chamber 16a of the boom cylinder 16 communicate with an accumulator 70.SELECTED DRAWING: Figure 3
【課題】制御弁装置を小型化可能な作業機械、作業機械の制御方法及び制御弁装置を提供する。【解決手段】制御弁装置４０は、第１ボディ４１と第２ボディ４２を有する。第１ボディ４１は、第１制御弁Ｖ１を含む。第１制御弁Ｖ１は、ブーム１４の下降動作中、ブームシリンダ１６のボトム室１６ａから流出する作動油を排出可能である。第２ボディ４２は、第２制御弁Ｖ２を含む。第２制御弁Ｖ２は、ブーム１４の下降動作中、ブームシリンダ１６のボトム室１６ａから流出する作動油を排出可能であり、かつ、ブーム１４の下降動作及び上昇動作以外の所定の動作中、アキュムレータ７０にブームシリンダ１６のボトム室１６ａを連通可能である。【選択図】図３
WORKING MACHINE, CONTROL METHOD OF WORKING MACHINE, AND CONTROL VALVE DEVICE
To provide a working machine which can reduce a size of a control valve device, a control method of the working machine, and the control valve device.SOLUTION: A control valve device 40 has a first body 41 and a second body 42. The first body 41 includes a first control valve V1. During a descending operation of a boom 14, the first control valve V1 can discharge a working fluid which flows out of a bottom chamber 16a of a boom cylinder 16. The second body 42 includes a second control valve V2. During the descending operation of the boom 14, the second control valve V2 can discharge the working fluid which flows out of the bottom chamber 16a of the boom cylinder 16, and during a prescribed operation other than the descending operation and an ascending operation of the boom 14, the second control valve can make the bottom chamber 16a of the boom cylinder 16 communicate with an accumulator 70.SELECTED DRAWING: Figure 3
【課題】制御弁装置を小型化可能な作業機械、作業機械の制御方法及び制御弁装置を提供する。【解決手段】制御弁装置４０は、第１ボディ４１と第２ボディ４２を有する。第１ボディ４１は、第１制御弁Ｖ１を含む。第１制御弁Ｖ１は、ブーム１４の下降動作中、ブームシリンダ１６のボトム室１６ａから流出する作動油を排出可能である。第２ボディ４２は、第２制御弁Ｖ２を含む。第２制御弁Ｖ２は、ブーム１４の下降動作中、ブームシリンダ１６のボトム室１６ａから流出する作動油を排出可能であり、かつ、ブーム１４の下降動作及び上昇動作以外の所定の動作中、アキュムレータ７０にブームシリンダ１６のボトム室１６ａを連通可能である。【選択図】図３
WORKING MACHINE, CONTROL METHOD OF WORKING MACHINE, AND CONTROL VALVE DEVICE
作業機械、作業機械の制御方法及び制御弁装置
SEKIGUCHI YUSUKE (author) / WACHI KANAKO (author)
2024-09-20
Patent
Electronic Resource
Japanese
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