A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONTROL VALVE UNIT
To reduce a size of a control valve unit having a floating function.SOLUTION: A control valve unit comprises: a pilot-operation type first operation valve 21 which is operable to a first closed position for blocking the connection of a first oil path 41 and a tank port 24, and a first open position for connecting the first oil path 41 and the tank port 24; and a pilot-operation type second operation valve 22 which is operable to a second closed position for blocking the connection of a second oil path 42 and the tank port 24, and a second open position for connecting the second oil path 42 and the tank port 24. When a first pilot valve 11 is operated to a first supply position 11a and a second pilot valve 12 is operated to a second supply position 12a, a control valve 10 is operated to a neutral position 10N, a first operation valve 21 is operated to the first open position, and a second operation valve 22 is operated to the second open position.SELECTED DRAWING: Figure 2
【課題】フローティング機能を備えたコントロールバルブユニットを小型化する。【解決手段】第１油路４１とタンクポート２４との接続を遮断する第１閉位置と、第１油路４１とタンクポート２４とを接続する第１開位置とに操作可能なパイロット操作型の第１操作弁２１と、第２油路４２とタンクポート２４との接続を遮断する第２閉位置と、第２油路４２とタンクポート２４とを接続する第２開位置とに操作可能なパイロット操作型の第２操作弁２２とが備えられる。第１パイロット弁１１が第１供給位置１１ａに操作され、且つ、第２パイロット弁１２が第２供給位置１２ａに操作された場合、制御弁１０が中立位置１０Ｎに操作され、第１操作弁２１が第１開位置に操作され、第２操作弁２２が第２開位置に操作される。【選択図】図２
CONTROL VALVE UNIT
To reduce a size of a control valve unit having a floating function.SOLUTION: A control valve unit comprises: a pilot-operation type first operation valve 21 which is operable to a first closed position for blocking the connection of a first oil path 41 and a tank port 24, and a first open position for connecting the first oil path 41 and the tank port 24; and a pilot-operation type second operation valve 22 which is operable to a second closed position for blocking the connection of a second oil path 42 and the tank port 24, and a second open position for connecting the second oil path 42 and the tank port 24. When a first pilot valve 11 is operated to a first supply position 11a and a second pilot valve 12 is operated to a second supply position 12a, a control valve 10 is operated to a neutral position 10N, a first operation valve 21 is operated to the first open position, and a second operation valve 22 is operated to the second open position.SELECTED DRAWING: Figure 2
【課題】フローティング機能を備えたコントロールバルブユニットを小型化する。【解決手段】第１油路４１とタンクポート２４との接続を遮断する第１閉位置と、第１油路４１とタンクポート２４とを接続する第１開位置とに操作可能なパイロット操作型の第１操作弁２１と、第２油路４２とタンクポート２４との接続を遮断する第２閉位置と、第２油路４２とタンクポート２４とを接続する第２開位置とに操作可能なパイロット操作型の第２操作弁２２とが備えられる。第１パイロット弁１１が第１供給位置１１ａに操作され、且つ、第２パイロット弁１２が第２供給位置１２ａに操作された場合、制御弁１０が中立位置１０Ｎに操作され、第１操作弁２１が第１開位置に操作され、第２操作弁２２が第２開位置に操作される。【選択図】図２
CONTROL VALVE UNIT
コントロールバルブユニット
IMAMURA TAKUYA (author) / NAGATOMI YUICHI (author)
2022-12-13
Patent
Electronic Resource
Japanese