Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HYDRAULIC SYSTEM FOR WORK MACHINE AND CONTROL VALVE
To provide a hydraulic system for a work machine capable of easily operating a plurality of control valves (hydraulic actuators).SOLUTION: A control valve comprises: a first port; a second port; a third port; a fourth port; a fifth port; a main body B1 including a first internal oil passage 41, a second internal oil passage 42, a third internal oil passage 43, a fourth internal oil passage 44 and a fifth internal oil passage 45; and a spool 50 which is moved inside of the main body, thereby capable of changing communication destinations of the first internal oil passage, the second internal oil passage, the third internal oil passage, the fourth internal oil passage and the fifth internal oil passage, and movable to a communication position where the second internal oil passage and the fifth internal oil passage communicate with each other or the first internal oil passage and the fifth internal oil passage communicate with each other, and a neutral position. The spool includes a first communication part 51 which communicates between the second internal oil passage and the fourth internal oil passage or the first internal oil passage and the fourth internal oil passage in the case where the spool is between the communication position and the neutral position.SELECTED DRAWING: Figure 4A
【課題】複数の制御弁（油圧アクチュエータ）を容易に作動させることができる作業機の油圧システムを提供する。【解決手段】制御弁は、第１ポートと、第２ポートと、第３ポートと、第４ポートと、第５ポートと、第１内部油路４１、第２内部油路４２、第３内部油路４３、第４内部油路４４及び第５内部油路４５とを有する本体Ｂ１と、本体の内部を移動することで第１内部油路、第２内部油路、第３内部油路、第４内部油路及び第５内部油路の連通先を変更可能であり且つ第２内部油路と第５内部油路とが連通又は第１内部油路と第５内部油路とが連通する連通位置と、中立位置とに移動可能なスプール５０を備え、スプールは、連通位置と中立位置との間である場合に、第２内部油路と第４内部油路又は第１内部油路と第４内部油路とを連通する第１連通部５１を有している。【選択図】図４Ａ
HYDRAULIC SYSTEM FOR WORK MACHINE AND CONTROL VALVE
To provide a hydraulic system for a work machine capable of easily operating a plurality of control valves (hydraulic actuators).SOLUTION: A control valve comprises: a first port; a second port; a third port; a fourth port; a fifth port; a main body B1 including a first internal oil passage 41, a second internal oil passage 42, a third internal oil passage 43, a fourth internal oil passage 44 and a fifth internal oil passage 45; and a spool 50 which is moved inside of the main body, thereby capable of changing communication destinations of the first internal oil passage, the second internal oil passage, the third internal oil passage, the fourth internal oil passage and the fifth internal oil passage, and movable to a communication position where the second internal oil passage and the fifth internal oil passage communicate with each other or the first internal oil passage and the fifth internal oil passage communicate with each other, and a neutral position. The spool includes a first communication part 51 which communicates between the second internal oil passage and the fourth internal oil passage or the first internal oil passage and the fourth internal oil passage in the case where the spool is between the communication position and the neutral position.SELECTED DRAWING: Figure 4A
【課題】複数の制御弁（油圧アクチュエータ）を容易に作動させることができる作業機の油圧システムを提供する。【解決手段】制御弁は、第１ポートと、第２ポートと、第３ポートと、第４ポートと、第５ポートと、第１内部油路４１、第２内部油路４２、第３内部油路４３、第４内部油路４４及び第５内部油路４５とを有する本体Ｂ１と、本体の内部を移動することで第１内部油路、第２内部油路、第３内部油路、第４内部油路及び第５内部油路の連通先を変更可能であり且つ第２内部油路と第５内部油路とが連通又は第１内部油路と第５内部油路とが連通する連通位置と、中立位置とに移動可能なスプール５０を備え、スプールは、連通位置と中立位置との間である場合に、第２内部油路と第４内部油路又は第１内部油路と第４内部油路とを連通する第１連通部５１を有している。【選択図】図４Ａ
HYDRAULIC SYSTEM FOR WORK MACHINE AND CONTROL VALVE
作業機の油圧システム及び制御弁
FUKUDA YUJI (Autor:in) / HONDA KEIGO (Autor:in)
18.02.2021
Patent
Elektronische Ressource
Japanisch
CONTROL VALVE AND HYDRAULIC SYSTEM FOR WORK MACHINE WITH CONTROL VALVE
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