JP2002004282A - Hydraulic pile puller - Google Patents

Hydraulic pile puller

Info

Publication number
JP2002004282A
JP2002004282A JP2000183916A JP2000183916A JP2002004282A JP 2002004282 A JP2002004282 A JP 2002004282A JP 2000183916 A JP2000183916 A JP 2000183916A JP 2000183916 A JP2000183916 A JP 2000183916A JP 2002004282 A JP2002004282 A JP 2002004282A
Authority
JP
Japan
Prior art keywords
pile
anvil
impact
hydraulic
chuck
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000183916A
Other languages
Japanese (ja)
Inventor
Tsutomu Kaneko
勉 金子
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Co Ltd
Original Assignee
Furukawa Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Furukawa Co Ltd filed Critical Furukawa Co Ltd
Priority to JP2000183916A priority Critical patent/JP2002004282A/en
Publication of JP2002004282A publication Critical patent/JP2002004282A/en
Pending legal-status Critical Current

Links

Landscapes

  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a hydraulic pile puller having large pulling performance capable of driving a pile and pulling it out by making use of an impulse. SOLUTION: The hydraulic pile puller is provided with a chuck 7 holding a pile, an anvil 6 connected to the chuck 7 so that an impulse can be vertically transmitted, a hydraulically driven main spindle 11 imparting downward an impulse to the anvil 6, and a hydraulically driven reverse piston 12 imparting upward an impulse to the anvil 6.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、衝撃を利用して杭
の打込みと引抜きを行うことのできる油圧杭打抜機に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic pile punching machine capable of driving and pulling out a pile by using an impact.

【0002】[0002]

【従来の技術】従来、土木建築等の構造物の基礎工事に
は、杭施工機械が利用されている。杭施工機械には、デ
ィーゼルパイルハンマ、気動ハンマ、油圧ハンマ等、杭
に衝撃を与えて地中に打込む衝撃式の杭打機や、振動パ
イルドライバ、油圧バイブロ等、杭に振動を与えて地中
に打込む振動式の杭打機がある。
2. Description of the Related Art Conventionally, pile construction machines have been used for foundation work of structures such as civil engineering buildings. Pile construction machines include diesel pile hammers, pneumatic hammers, hydraulic hammers, etc., which give impact to piles by applying impact to piles and impact piles such as vibratory pile drivers, hydraulic vibros, etc. There is a vibratory pile driver driven into the ground.

【0003】振動パイルドライバは、複数の偏心ウエイ
トを回転させて上下方向の振動を発生させ、油圧バイブ
ロは、高圧油でシリンダ内のピストンを高速で垂直方向
へ往復させて上下方向の振動を発生させる。従って、こ
のような振動式の杭打機は、杭に上下方向の振動を与え
ることにより、杭の打込みばかりでなく、鋼矢板、H
鋼、鋼管などの杭の引抜きも行うことができる。
A vibratory pile driver generates a vertical vibration by rotating a plurality of eccentric weights, and a hydraulic vibrator generates a vertical vibration by reciprocating a piston in a cylinder in a vertical direction at high speed with high-pressure oil. Let it. Therefore, such a vibration-type pile driver can not only drive a pile but also provide steel sheet pile, H
It is also possible to pull out piles such as steel and steel pipe.

【0004】[0004]

【発明が解決しようとする課題】しかし、地中に打込ま
れた杭は、工事期間中に強固に固定されてしまい、振動
式の杭打機では引抜能力が不足して引抜けなくなる場合
がある。これに対し、衝撃式の杭打機は、杭の頭部を打
撃して下方への衝撃を与えるので、打込能力は大である
が杭を引抜く機能は有していない。
However, piles driven into the ground are firmly fixed during the construction period, and vibration-type pile driving machines may not be able to pull out due to insufficient pulling capacity. is there. On the other hand, the impact type pile driving machine hits the head of the pile and gives a downward impact, and therefore has a large driving capability but does not have a function of pulling out the pile.

【0005】本発明は、杭打機における上記問題を解決
するものであって、衝撃を利用して杭の打込みと引抜き
とを行うことができ、引抜能力の大きい油圧杭打抜機を
提供することを目的とする。
SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problem in a pile driving machine, and to provide a hydraulic pile driving machine capable of driving and pulling out a pile by using an impact and having a large pulling ability. With the goal.

【0006】[0006]

【課題を解決するための手段】この発明の油圧杭打抜機
は、杭を保持するチャックと、チャックに上下方向への
衝撃を伝達可能に連結されたアンビルと、アンビルに下
方への衝撃を与える油圧駆動のメインピストンと、アン
ビルに上方への衝撃を与える油圧駆動のリバースピスト
ンとを備えている。
A hydraulic pile punching machine according to the present invention provides a chuck for holding a pile, an anvil connected to the chuck so as to transmit a vertical impact, and a downward impact on the anvil. It has a hydraulically driven main piston and a hydraulically driven reverse piston that applies an upward impact to the anvil.

【0007】この油圧杭打抜機では、杭の打込みを行う
ときには、杭をチャックで支持し、メインピストンでア
ンビルを打撃して下方への衝撃を与え、この衝撃をアン
ビルからチャックを介して杭に伝達して杭を地中に打込
む。杭の引抜きを行うときには、上方への推力を加えつ
つリバースピストンでアンビルを打撃して上方への衝撃
を与え、この衝撃をアンビルからチャックを介して杭に
伝達して杭を地中から抜出す。
[0007] In this hydraulic pile punching machine, when driving a pile, the pile is supported by a chuck, and the main piston strikes the anvil to give a downward impact. Transmit and drive the pile into the ground. When pulling out a pile, the reverse piston strikes the anvil with an upward thrust to apply an upward impact, and this impact is transmitted from the anvil to the pile via a chuck to pull the pile out of the ground. .

【0008】この油圧杭打抜機は油圧駆動のリバースピ
ストンが大きな衝撃エネルギーを与えるので、引抜能力
が大きく、効率良く杭の引抜作業を行うことができる。
In this hydraulic pile punching machine, since the hydraulically driven reverse piston gives a large impact energy, the pulling ability is large and the pile can be pulled out efficiently.

【0009】[0009]

【発明の実施の形態】図1は本発明の実施の一形態を示
す油圧杭打抜機の側面図、図2は一部を断面で示す油圧
杭打抜機の構造の説明図、図3はリバースピストンの拡
大断面図である。この油圧杭打抜機1では、上部シリン
ダ3と下部シリンダ4とを連設した油圧打撃装置5がハ
ウジング2内に設けられており、下部シリンダ4内に挿
着されたアンビル6の下端部にチャック7の上端部が連
結されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view of a hydraulic pile punching machine showing an embodiment of the present invention, FIG. It is an expanded sectional view of a piston. In this hydraulic pile punching machine 1, a hydraulic hitting device 5 in which an upper cylinder 3 and a lower cylinder 4 are connected in series is provided in a housing 2, and a lower end of an anvil 6 inserted in the lower cylinder 4 is chucked. 7 are connected to each other.

【0010】チャック7の下部には、固定ジョー8と開
閉用油圧シリンダ9で開閉可能な可動ジョー10とが設
けられており、この固定ジョー8と可動ジョー10とで
杭を保持するようになっている。油圧打撃装置5の上部
シリンダ3にはメインピストン11が内蔵されており、
その油圧室(図示略)へ圧油を供給してメインピストン
11を上下方向に往復動させることにより、アンビル6
の上端を打撃してアンビル6に下方への衝撃を与える。
A fixed jaw 8 and a movable jaw 10 which can be opened and closed by an opening and closing hydraulic cylinder 9 are provided below the chuck 7, and the fixed jaw 8 and the movable jaw 10 hold the pile. ing. A main piston 11 is built in the upper cylinder 3 of the hydraulic impact device 5,
By supplying pressure oil to the hydraulic chamber (not shown) and reciprocating the main piston 11 in the vertical direction, the anvil 6
To strike the anvil 6 downward.

【0011】アンビル6には大径部6Bが形成されてお
り、この大径部6Bの下方の小径部6Cと下部シリンダ
4との間には環状のリバースピストン12が装着されて
いて、その油圧室13へ圧油を供給してリバースピスト
ン12を上下方向に往復動させることにより、アンビル
6の大径部6Bを打撃してアンビル6に上方への衝撃を
与える。
A large-diameter portion 6B is formed on the anvil 6, and an annular reverse piston 12 is mounted between the small-diameter portion 6C below the large-diameter portion 6B and the lower cylinder 4. By supplying the pressurized oil to the chamber 13 and reciprocating the reverse piston 12 in the vertical direction, the large diameter portion 6B of the anvil 6 is hit to give an upward impact to the anvil 6.

【0012】この油圧杭打抜機1は、杭の打込み、抜出
しを行うときには、クレーンのブーム先端から吊って使
用される。杭の打込みを行うときには、杭の頭部をチャ
ック7で掴んで支持し、メインピストン11を作動させ
アンビル6を打撃して下方への衝撃を与える。アンビル
6はチャック7に上下方向への衝撃を伝達可能に連結さ
れているので、この下方への衝撃をアンビル6からチャ
ック7を介して杭に伝達して杭を地中に打込む。
This hydraulic pile punching machine 1 is used by hanging a crane boom tip when driving and pulling out a pile. When the pile is driven, the head of the pile is gripped and supported by the chuck 7 and the main piston 11 is operated to strike the anvil 6 to give a downward impact. Since the anvil 6 is connected to the chuck 7 so as to be able to transmit a vertical impact, the downward impact is transmitted from the anvil 6 to the pile via the chuck 7 and the pile is driven into the ground.

【0013】杭の引抜きを行うときには、クレーンによ
って上方への推力を加えつつリバースピストン12を作
動させアンビル6を打撃して上方への衝撃を与える。ア
ンビル6はチャック7に上下方向への衝撃を伝達可能に
連結されているので、この上方への衝撃をアンビル6か
らチャック7を介して杭に伝達して杭を地中から抜出
す。
When the pile is pulled out, the reverse piston 12 is actuated while applying an upward thrust by a crane to strike the anvil 6 to give an upward impact. Since the anvil 6 is connected to the chuck 7 so as to be able to transmit a vertical impact, the upward impact is transmitted from the anvil 6 to the pile via the chuck 7 and the pile is extracted from the ground.

【0014】この油圧杭打抜機1は、油圧駆動のリバー
スピストン12が推力より大きな力で衝撃エネルギー与
えることができるので、引抜能力が大きく、効率良く杭
の引抜作業を行うことができる。
Since the hydraulically driven reverse piston 12 can apply impact energy with a force greater than the thrust, the hydraulic pile punching machine 1 has a large pulling capacity and can efficiently perform a pile pulling operation.

【0015】[0015]

【発明の効果】以上説明したように、本発明の油圧杭打
抜機は、衝撃を利用して杭の打込みのみでなく、杭の引
抜きも行うことができる。また、引抜能力が大きいの
で、効率良く杭の引抜作業を行うことができる。
As described above, the hydraulic pile punching machine of the present invention can not only drive a pile but also pull a pile using an impact. In addition, since the pulling ability is large, the pile can be pulled out efficiently.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施の一形態を示す油圧杭打抜機の側
面図である。
FIG. 1 is a side view of a hydraulic pile punching machine showing an embodiment of the present invention.

【図2】一部を断面で示す油圧杭打抜機の構造の説明図
である。
FIG. 2 is an explanatory view of a structure of a hydraulic pile punching machine, a part of which is shown in cross section.

【図3】リバースピストンの拡大断面図である。FIG. 3 is an enlarged sectional view of a reverse piston.

【符号の説明】[Explanation of symbols]

1 油圧杭打抜機 2 ハウジング 3 上部シリンダ 4 下部シリンダ 5 油圧打撃装置 6 アンビル 7 チャック 8 固定ジョー 9 開閉用油圧シリンダ 10 可動ジョー 11 メインピストン 12 リバースピストン DESCRIPTION OF SYMBOLS 1 Hydraulic pile punching machine 2 Housing 3 Upper cylinder 4 Lower cylinder 5 Hydraulic impact device 6 Anvil 7 Chuck 8 Fixed jaw 9 Opening / closing hydraulic cylinder 10 Movable jaw 11 Main piston 12 Reverse piston

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 杭を保持するチャックと、チャックに上
下方向への衝撃を伝達可能に連結されたアンビルと、ア
ンビルに下方への衝撃を与える油圧駆動のメインピスト
ンと、アンビルに上方への衝撃を与える油圧駆動のリバ
ースピストンとを備えてなる油圧杭打抜機。
1. A chuck for holding a pile, an anvil connected to the chuck so as to transmit a vertical impact to the chuck, a hydraulically driven main piston for applying a downward impact to the anvil, and an upward impact to the anvil. And a hydraulically driven reverse piston.
JP2000183916A 2000-06-20 2000-06-20 Hydraulic pile puller Pending JP2002004282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000183916A JP2002004282A (en) 2000-06-20 2000-06-20 Hydraulic pile puller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000183916A JP2002004282A (en) 2000-06-20 2000-06-20 Hydraulic pile puller

Publications (1)

Publication Number Publication Date
JP2002004282A true JP2002004282A (en) 2002-01-09

Family

ID=18684419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000183916A Pending JP2002004282A (en) 2000-06-20 2000-06-20 Hydraulic pile puller

Country Status (1)

Country Link
JP (1) JP2002004282A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100927263B1 (en) * 2007-10-12 2009-11-18 조덕상 Strike Pipe Drawing Device
KR100927264B1 (en) * 2007-10-12 2009-11-23 조덕상 Strike Pipe Drawing Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100927263B1 (en) * 2007-10-12 2009-11-18 조덕상 Strike Pipe Drawing Device
KR100927264B1 (en) * 2007-10-12 2009-11-23 조덕상 Strike Pipe Drawing Device

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