Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PILE DRIVER, AND METHOD OF USING PILE DRIVER
To provide a pile driver having a hydraulic circuit for outrigger jack control capable of allowing an appropriate elongation force to act on all outrigger jacks to such an extent that a crawler-type base machine is not elevated by a simple operation, and a method of using the pile driver.SOLUTION: A hydraulic circuit 61 includes: a ground circuit 71 branched from a telescopic circuit 63 between a hydraulic pump 62 and a control valve 60 for outrigger jack expansion and contraction switching via a solenoid switch valve 72; a relief valve 73 disposed in the ground circuit, which opens when the hydraulic pressure of the ground circuit exceeds a predetermined ground hydraulic pressure, and causes the telescopic circuit and a return circuit 65 to communicate with each other via the ground circuit; and a changeover switch 74 which switches the solenoid switch valve between a communication state in which the telescopic circuit and the ground circuit are caused to communicate with each other and a shutout state in which the telescopic circuit and the ground circuit are shut off from each other.SELECTED DRAWING: Figure 1
【課題】 簡単な操作でクローラ式のベースマシンが上昇しない範囲で適度な伸長力を全てのアウトリガジャッキに作用させることができるアウトリガジャッキ制御用の油圧回路を備えた杭打機及び杭打機の使用方法を提供する。【解決手段】 油圧回路６１は、油圧ポンプ６２とアウトリガジャッキ伸縮切替用のコントロールバルブ６０との間の伸縮回路６３からソレノイド切替弁７２を介して分岐する接地回路７１と、該接地回路に設けられて，該接地回路の油圧があらかじめ設定された接地油圧を超えたときに開弁して前記伸縮回路と戻り回路６５とを接地回路を介して連通させるリリーフ弁７３と、前記ソレノイド切替弁を、伸縮回路と接地回路とを連通させる連通状態と、伸縮回路と接地回路とを遮断する遮断状態とに切り替える切替スイッチ７４を備えた電気回路とを備えている。【選択図】 図１
PILE DRIVER, AND METHOD OF USING PILE DRIVER
To provide a pile driver having a hydraulic circuit for outrigger jack control capable of allowing an appropriate elongation force to act on all outrigger jacks to such an extent that a crawler-type base machine is not elevated by a simple operation, and a method of using the pile driver.SOLUTION: A hydraulic circuit 61 includes: a ground circuit 71 branched from a telescopic circuit 63 between a hydraulic pump 62 and a control valve 60 for outrigger jack expansion and contraction switching via a solenoid switch valve 72; a relief valve 73 disposed in the ground circuit, which opens when the hydraulic pressure of the ground circuit exceeds a predetermined ground hydraulic pressure, and causes the telescopic circuit and a return circuit 65 to communicate with each other via the ground circuit; and a changeover switch 74 which switches the solenoid switch valve between a communication state in which the telescopic circuit and the ground circuit are caused to communicate with each other and a shutout state in which the telescopic circuit and the ground circuit are shut off from each other.SELECTED DRAWING: Figure 1
【課題】 簡単な操作でクローラ式のベースマシンが上昇しない範囲で適度な伸長力を全てのアウトリガジャッキに作用させることができるアウトリガジャッキ制御用の油圧回路を備えた杭打機及び杭打機の使用方法を提供する。【解決手段】 油圧回路６１は、油圧ポンプ６２とアウトリガジャッキ伸縮切替用のコントロールバルブ６０との間の伸縮回路６３からソレノイド切替弁７２を介して分岐する接地回路７１と、該接地回路に設けられて，該接地回路の油圧があらかじめ設定された接地油圧を超えたときに開弁して前記伸縮回路と戻り回路６５とを接地回路を介して連通させるリリーフ弁７３と、前記ソレノイド切替弁を、伸縮回路と接地回路とを連通させる連通状態と、伸縮回路と接地回路とを遮断する遮断状態とに切り替える切替スイッチ７４を備えた電気回路とを備えている。【選択図】 図１
PILE DRIVER, AND METHOD OF USING PILE DRIVER
杭打機及び杭打機の使用方法
TOMITA YASUKIMI (Autor:in) / NASU HIDEAKI (Autor:in)
21.01.2021
Patent
Elektronische Ressource
Japanisch
IPC:
E02F
Baggern
,
DREDGING
/
B60S
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
,
Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen
/
B66C
Krane
,
CRANES
/
E02D
FOUNDATIONS
,
Gründungen
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