VIBRATION PILE PUNCHING MACHINE AND DRIVING AND EXTRACTING METHOD FOR PILE

PROBLEM TO BE SOLVED: To perform idling stop control (to stop a motor while gripping a pile) even in absence of an auxiliary electric motor and an auxiliary hydraulic pump for a gripping device and without placing an accumulator in operation.SOLUTION: An exciting machine 110 includes a main motor 11...

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Bibliographic Details
Main Authors KATO TSUTOMU, NAKASHIRO NOBUHIRO, SUZUKI YUKICHI, MIZOTSUGU KEI
Format Patent
LanguageEnglish
Japanese
Published 05.07.2018
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PROBLEM TO BE SOLVED: To perform idling stop control (to stop a motor while gripping a pile) even in absence of an auxiliary electric motor and an auxiliary hydraulic pump for a gripping device and without placing an accumulator in operation.SOLUTION: An exciting machine 110 includes a main motor 111 as a hydraulic motor, and is driven by the main motor 111. A pile gripping device 120 is installed under the exciting machine 110. The pile gripping device 120 grips the pile. The main pump P1 pumps oil out of an oil tank T to the main motor 111. The pump P4 for the gripping device pumps oil out of the oil tank T to the pile gripping device 120. The motor 130 drives the main pump P1. A DC motor 150 drives the pump P4 for the gripping device. A control part 160 drives the pump P4 for the gripping device by the DC motor 150, and stops the motor 130 when the pile gripping device 120 grips an object to be gripped, and the object to be gripped is being neither driven nor extracted.SELECTED DRAWING: Figure 1 【課題】補助の電気モータと補助の把持装置用油圧ポンプが無くても、またアキュムレータを動作させなくても、アイドリングストップ制御する（杭を把持しつつ発動機を停止する）。【解決手段】起振機１１０は、油圧モータである主モータ１１１を含み、主モータ１１１によって駆動される。杭把持装置１２０は起振機１１０の下に設置される。杭把持装置１２０は、杭を把持する。主ポンプＰ１は主モータ１１１にオイルタンクＴのオイルを圧送する。把持装置用ポンプＰ４は杭把持装置１２０にオイルタンクＴのオイルを圧送する。発動機１３０は、主ポンプＰ１を駆動する。直流モータ１５０は、把持装置用ポンプＰ４を駆動する。制御部１６０は、杭把持装置１２０が把持対象物を把持しており、かつその把持対象物の打込みおよび引き抜きをしていないとき、直流モータ１５０により把持装置用ポンプＰ４を駆動し、かつ発動機１３０を停止する。【選択図】図１
Bibliography:Application Number: JP20180070579