JPH10298987A - Hydraulic drop hammer - Google Patents
Hydraulic drop hammerInfo
- Publication number
- JPH10298987A JPH10298987A JP10493297A JP10493297A JPH10298987A JP H10298987 A JPH10298987 A JP H10298987A JP 10493297 A JP10493297 A JP 10493297A JP 10493297 A JP10493297 A JP 10493297A JP H10298987 A JPH10298987 A JP H10298987A
- Authority
- JP
- Japan
- Prior art keywords
- pile
- weight
- anvil
- pile cap
- cover
- 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.)
- Granted
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、油圧シリンダで吊
下された重錘を落下させて杭を打ち込む油圧ドロップハ
ンマに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic drop hammer for driving a pile by dropping a weight suspended by a hydraulic cylinder.
【０００２】[0002]
【従来の技術】油圧ドロップハンマは、重錘を落下させ
て杭を打ち込む際の騒音や振動を低減するために、例え
ば、実公昭５９−２３７９８号公報に示されるように、
油圧シリンダで吊下された重錘と、該重錘の落下打撃を
杭に伝達するアンビルと、杭の頭部に被着されるパイル
キャップとを備えたハンマ本体と杭の頭部の外側に防音
カバーを設けている。2. Description of the Related Art As disclosed in Japanese Utility Model Publication No. 59-23798, for example, a hydraulic drop hammer is used to reduce noise and vibration when a weight is dropped and a pile is driven.
A hammer body having a weight suspended by a hydraulic cylinder, an anvil for transmitting a drop impact of the weight to the pile, and a pile cap attached to the pile head, A soundproof cover is provided.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上述の構成
では、防音カバーがハンマ本体全体から杭の頭部を覆っ
てしまうので、杭をセットするときに、ハンマ本体下端
の杭取付部が見えないため、防音カバーをハンマ本体と
は別のロープで吊持して、杭をセットするときに防音カ
バーを引き上げるようにしている。したがって、装置全
体が大型化し、また、杭取付時の取扱いが面倒であっ
た。However, in the above configuration, since the soundproof cover covers the head of the pile from the entire hammer body, the pile mounting portion at the lower end of the hammer body cannot be seen when setting the pile. Therefore, the soundproof cover is hung by a rope different from the hammer body, and the soundproof cover is pulled up when setting the pile. Therefore, the whole device becomes large, and handling at the time of mounting the pile is troublesome.
【０００４】そこで本発明は、防音カバー部分をコンパ
クトにして防音効果を高め、かつ、杭取付時の取扱いを
容易にした油圧ドロップハンマを提供することを目的と
している。Accordingly, an object of the present invention is to provide a hydraulic drop hammer having a compact soundproof cover to enhance the soundproofing effect and to facilitate handling when mounting a pile.
【０００５】[0005]
【課題を解決するための手段】上記した目的を達成する
ため、本発明は、油圧シリンダで吊下された重錘と、該
重錘の落下打撃を杭に伝達するアンビルと、杭の頭部に
被着されるパイルキャップとを備えたハンマ本体と杭の
頭部の外側に防音カバーを設けた油圧ドロップハンマに
おいて、請求項１の手段では、前記防音カバーを、前記
ハンマ本体下部の重錘とアンビルの衝突部外周に配置さ
れる制振鋼板製の防音カバーと、該防音カバー下部とパ
イルキャップとの間に配置される伸縮性を有する防音シ
ートカバーとで構成するとともに、前記パイルキャップ
を制振鋼板で形成したことを特徴とし、請求項２の手段
では、前記防音カバーを、前記ハンマ本体下部の重錘と
アンビルの衝突部外周に配置される制振鋼板製の防音カ
バーと、該防音カバー下部とパイルキャップとの間に配
置される伸縮性を有する防音シートカバーとで構成する
とともに、前記パイルキャップに制振鋼板を取付けたこ
とを特徴としている。In order to achieve the above-mentioned object, the present invention provides a weight suspended by a hydraulic cylinder, an anvil for transmitting a drop impact of the weight to a pile, and a head of the pile. 2. A hydraulic drop hammer comprising a hammer body having a pile cap attached to a pile and a soundproof cover provided outside a head of a pile, wherein the soundproof cover is weighted below the hammer body. And a soundproof cover made of a vibration damping steel sheet arranged on the outer periphery of the collision portion of the anvil, and a soundproof sheet cover having elasticity arranged between the lower part of the soundproof cover and the pile cap. The soundproof cover according to claim 2, wherein the soundproof cover is formed of a vibration damping steel plate that is disposed around a collision portion between the weight at the lower part of the hammer body and the anvil. Soundproof Together comprise a soundproof sheet cover having a stretchable disposed between the over lower and pile cap is characterized by attaching the vibration damping steel plate in the pile cap.
【０００６】[0006]
【発明の実施の形態】以下、本発明を、図面に示す実施
形態例に基づいて、さらに詳細に説明する。図１乃至図
４は本発明の第１実施形態例を示すもので、杭打機１
は、クローラ式走行体２の前部にリーダ３を起伏可能に
立設し、バックステー４にて支持しており、リーダ３上
部のトップシーブブロック５を介してロープ６にて吊持
した油圧ドロップハンマ７を、リーダ３前側のガイドギ
ブ８に沿って昇降可能に配設している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings. 1 to 4 show a first embodiment of the present invention.
Is a hydraulic device suspended on a rope 6 via a top sheave block 5 above a leader 3 by erecting a leader 3 at the front of a crawler type traveling body 2 so that the leader 3 can be raised and lowered. The drop hammer 7 is provided so as to be able to move up and down along a guide gib 8 on the front side of the reader 3.
【０００７】油圧ドロップハンマ７は、上部ケーシング
９内に、油圧シリンダ１０と該油圧シリンダで吊下され
た重錘１１とを配設し、下部ケーシング１２内に、重錘
１１の落下打撃を杭１３に伝達するアンビル１４を上下
方向にスライド可能に設け、アンビル１４の下部に、杭
１３の頭部に被着されるパイルキャップ１５を上部ケー
シング９に取付けたワイヤ１６，１６で吊持している。The hydraulic drop hammer 7 has a hydraulic cylinder 10 and a weight 11 suspended by the hydraulic cylinder arranged in an upper casing 9, and a drop impact of the weight 11 is piled in a lower casing 12. An anvil 14 to be transmitted to the pile 13 is provided so as to be slidable in the vertical direction, and a pile cap 15 attached to the head of the pile 13 is suspended below the anvil 14 by wires 16, 16 attached to the upper casing 9. I have.
【０００８】アンビル１４は、上面に凹部を形成して該
凹部にクッション１７を設けており、該クッション１７
に、油圧シリンダ１０に吊り上げられて自由落下する重
錘１１が衝突する。また、パイルキャップ１５は、キャ
ップ部１５ａの上面にクッション１８を、下部に杭１３
の頭部に挿入されるパイルガイド部１９をそれぞれ設け
ており、パイルガイド部１９を制振鋼板で形成してい
る。The anvil 14 has a concave portion formed on the upper surface and a cushion 17 provided in the concave portion.
Then, the weight 11 suspended by the hydraulic cylinder 10 and falling freely collides. The pile cap 15 has a cushion 18 on the upper surface of the cap portion 15a and a pile 13 on the lower portion.
Each of the pile guides 19 is provided to be inserted into the head of the vehicle, and the pile guide 19 is formed of a damping steel plate.
【０００９】重錘１１とアンビル１４の衝突部となる下
部ケーシング１２の外周には、防音カバー２０が配置さ
れている。該防音カバー２０は、内側に吸音材２０ａを
貼付けた制振鋼板製で上部ケーシング９と下部ケーシン
グ１２の間に取付けられている。また、防音カバー２０
下部とパイルキャップ１５との間には、蛇腹状に形成さ
れて伸縮性を有する液体入りの防音シートカバー２１が
配置されている。該防音シートカバー２１は、その上部
を防音カバー２０下部にボルト結合され、その下部をパ
イルキャップ１５のフランジにボルト結合されている。A soundproof cover 20 is disposed on the outer periphery of the lower casing 12, which is a collision portion between the weight 11 and the anvil 14. The soundproof cover 20 is made of a vibration damping steel sheet having a sound absorbing material 20a adhered to the inside, and is attached between the upper casing 9 and the lower casing 12. Also, the soundproof cover 20
Between the lower part and the pile cap 15, there is disposed a soundproof sheet cover 21 formed in a bellows shape and containing liquid having elasticity. The upper part of the soundproof sheet cover 21 is bolted to the lower part of the soundproof cover 20, and the lower part is bolted to a flange of the pile cap 15.
【００１０】このように、油圧シリンダ１０に吊り上げ
られて自由落下する重錘１１の打撃に伴う騒音及び振動
の発生源であるアンビル１４及びアンビル１４とパイル
キャップ１５間の外周を、制振鋼板製の防音カバー２０
と防音シートカバー２１とで覆って外部と遮断し、しか
も、パイルキャップ１５のパイルガイド部１９を制振鋼
板で形成したので、騒音及び振動を低減して、防音効果
を高めることができるとともに、防音カバー部分をコン
パクトにでき、かつ、杭１３取付時は、パイルキャップ
１５が視認できるので取扱いが非常に容易になる。尚、
ガイドギブ８やパイルキャップ１５に制振鋼板を取付け
ることにより、防音効果をより一層高めることができ
る。As described above, the anvil 14 and the outer periphery between the anvil 14 and the pile cap 15, which are sources of noise and vibration caused by the impact of the weight 11, which is suspended by the hydraulic cylinder 10 and falls freely, are made of a damping steel plate. Soundproof cover 20
And the sound-insulating sheet cover 21 to shield from the outside, and since the pile guide portion 19 of the pile cap 15 is formed of a damping steel plate, noise and vibration can be reduced, and the sound-proof effect can be enhanced. The soundproof cover can be made compact, and when the pile 13 is attached, the pile cap 15 can be seen, so that handling becomes very easy. still,
By attaching a damping steel plate to the guide give 8 and the pile cap 15, the soundproofing effect can be further enhanced.
【００１１】図５及び図６は本発明の第２実施形態例を
示すもので、パイルキャップ３０は普通鋼板で形成さ
れ、キャップ部３０ａ及び杭１３の頭部に挿入されるパ
イルガイド部３１に制振鋼板３２を取付けており、この
ように構成することにより、前記第１実施形態例と同様
の効果を奏することができる。FIGS. 5 and 6 show a second embodiment of the present invention. The pile cap 30 is formed of a normal steel plate, and includes a cap portion 30a and a pile guide portion 31 inserted into the head of the pile 13. The damping steel plate 32 is attached, and with such a configuration, the same effect as in the first embodiment can be obtained.
【００１２】[0012]
【発明の効果】以上説明したように、本発明の油圧ドロ
ップハンマは、請求項１の手段では、油圧シリンダで吊
下された重錘と、重錘の落下打撃を杭に伝達するアンビ
ルと、杭の頭部に被着されるパイルキャップとを備え、
ハンマ本体下部の重錘とアンビルの衝突部外周に制振鋼
板製の防音カバーを配置するとともに、該防音カバー下
部とパイルキャップとの間に伸縮性を有する防音シート
カバーを配置し、パイルキャップを制振鋼板で形成し、
また、請求項２の手段では、パイルキャップに制振鋼板
を取付けたので、油圧シリンダに吊り上げられて自由落
下する重錘の打撃に伴う騒音及び振動の発生源であるア
ンビル及びアンビルとパイルキャップ間の外周を覆う制
振鋼板製の防音カバーと防音シートカバーと、制振鋼板
で形成又は制振鋼板を取付けたパイルキャップとによ
り、騒音及び振動を低減して、防音効果を高めることが
できるとともに、防音カバー部分をコンパクトにしで
き、かつ、杭取付時は、パイルキャップが視認できるの
で取扱いが非常に容易になる。As described above, according to the first aspect of the present invention, there is provided a hydraulic drop hammer comprising: a weight suspended by a hydraulic cylinder; and an anvil for transmitting a drop impact of the weight to a pile. With a pile cap attached to the head of the pile,
A soundproof cover made of a damping steel plate is arranged around the collision portion between the weight and the anvil at the lower part of the hammer body, and a soundproof sheet cover having elasticity is arranged between the lower part of the soundproof cover and the pile cap. Formed with damping steel plate,
According to the second aspect of the present invention, since the damping steel plate is attached to the pile cap, the anvil which is a source of noise and vibration caused by the impact of the weight which is lifted up by the hydraulic cylinder and falls freely and between the anvil and the pile cap. The noise and vibration can be reduced and the soundproofing effect can be enhanced by the soundproof cover and the soundproof sheet cover made of the damping steel sheet that covers the outer circumference of the In addition, the soundproof cover can be made compact, and when the pile is mounted, the pile cap can be visually recognized, so that the handling becomes very easy.
【図１】 本発明の第１実施形態例を示す油圧ドロップ
ハンマの要部拡大断面図である。FIG. 1 is an enlarged sectional view of a main part of a hydraulic drop hammer showing a first embodiment of the present invention.
【図２】 同じく杭打機の正面図である。FIG. 2 is a front view of the pile driver.
【図３】 同じくパイルキャップの正面図である。FIG. 3 is a front view of the pile cap.
【図４】 同じくパイルキャップの断面底面図である。FIG. 4 is a cross-sectional bottom view of the pile cap.
【図５】 第２実施形態例を示すパイルキャップの正面
図である。FIG. 5 is a front view of a pile cap according to a second embodiment.
【図６】 同じくパイルキャップの底面図である。FIG. 6 is a bottom view of the pile cap.
１…杭打機、７…油圧ドロップハンマ、１０…油圧シリ
ンダ、１１…重錘、１３…杭、１４…アンビル、１５，
３０…パイルキャップ、１９，３１…パイルガイド部、
２０…防音カバー、２１…防音シートカバー、３２…制
振鋼板DESCRIPTION OF SYMBOLS 1 ... Pile driver, 7 ... Hydraulic drop hammer, 10 ... Hydraulic cylinder, 11 ... Weight, 13 ... Pile, 14 ... Anvil, 15,
30: pile cap, 19, 31: pile guide section,
20: Soundproof cover, 21: Soundproof sheet cover, 32: Damping steel plate
Claims (2)
錘の落下打撃を杭に伝達するアンビルと、杭の頭部に被
着されるパイルキャップとを備えたハンマ本体と杭の頭
部の外側に防音カバーを設けた油圧ドロップハンマにお
いて、前記防音カバーを、前記ハンマ本体下部の重錘と
アンビルの衝突部外周に配置される制振鋼板製の防音カ
バーと、該防音カバー下部とパイルキャップとの間に配
置される伸縮性を有する防音シートカバーとで構成する
とともに、前記パイルキャップを制振鋼板で形成したこ
とを特徴とする油圧ドロップハンマ。1. A hammer body and a pile including a weight suspended by a hydraulic cylinder, an anvil for transmitting a drop impact of the weight to the pile, and a pile cap attached to a head of the pile. In a hydraulic drop hammer provided with a soundproof cover on the outside of the head, the soundproof cover is made of a vibration-damping steel plate disposed on the outer periphery of a collision portion between the weight and the anvil at the lower part of the hammer body, and a lower part of the soundproof cover. And a soundproof sheet cover having elasticity disposed between the pile cap and the pile cap, and the pile cap is formed of a damping steel plate.
錘の落下打撃を杭に伝達するアンビルと、杭の頭部に被
着されるパイルキャップとを備えたハンマ本体と杭の頭
部の外側に防音カバーを設けた油圧ドロップハンマにお
いて、前記防音カバーを、前記ハンマ本体下部の重錘と
アンビルの衝突部外周に配置される制振鋼板製の防音カ
バーと、該防音カバー下部とパイルキャップとの間に配
置される伸縮性を有する防音シートカバーとで構成する
とともに、前記パイルキャップに制振鋼板を取付けたこ
とを特徴とする油圧ドロップハンマ。2. A hammer body comprising a weight suspended by a hydraulic cylinder, an anvil for transmitting a drop impact of the weight to a pile, and a pile cap attached to a head of the pile. In a hydraulic drop hammer provided with a soundproof cover on the outside of the head, the soundproof cover is made of a vibration-damping steel plate disposed on the outer periphery of a collision portion between the weight and the anvil at the lower part of the hammer body, and a lower part of the soundproof cover. And a soundproof sheet cover having elasticity disposed between the pile cap and the pile cap, and a damping steel plate is attached to the pile cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10493297A JP3151610B2 (en) | 1997-04-22 | 1997-04-22 | Hydraulic drop hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10493297A JP3151610B2 (en) | 1997-04-22 | 1997-04-22 | Hydraulic drop hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10298987A true JPH10298987A (en) | 1998-11-10 |
| JP3151610B2 JP3151610B2 (en) | 2001-04-03 |
Family
ID=14393878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10493297A Expired - Fee Related JP3151610B2 (en) | 1997-04-22 | 1997-04-22 | Hydraulic drop hammer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3151610B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2472606A (en) * | 2009-08-12 | 2011-02-16 | David Frederick Spriggs | A hydraulic pile driver with cushions to reduce impact noise |
| GB2472605A (en) * | 2009-08-12 | 2011-02-16 | David Frederick Spriggs | A hydraulic pile driver with air ducts to assist in cooling |
| CN102587424A (en) * | 2012-03-23 | 2012-07-18 | 唐家鹏 | External hydraulic power shock excitation equipment for building foundation pile |
| GB2487984A (en) * | 2011-02-14 | 2012-08-15 | David Frederick Spriggs | A pile driver with cushions to reduce impact noise |
| CN109403324A (en) * | 2018-12-17 | 2019-03-01 | 广东力源液压机械有限公司 | A kind of diesel hammer hammer body and pile cover buffer control method and it connect buffer structure |
| JP2021134591A (en) * | 2020-02-27 | 2021-09-13 | 株式会社高知丸高 | Pile driver soundproof structure and soundproof method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561346B (en) * | 2012-01-19 | 2014-08-06 | 唐家鹏 | Hydraulic power shock excitation equipment for building foundation pile |
-
1997
- 1997-04-22 JP JP10493297A patent/JP3151610B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2472606A (en) * | 2009-08-12 | 2011-02-16 | David Frederick Spriggs | A hydraulic pile driver with cushions to reduce impact noise |
| GB2472666A (en) * | 2009-08-12 | 2011-02-16 | David Frederick Spriggs | A hydraulic pile driver with cushions to reduce impact noise |
| GB2472605A (en) * | 2009-08-12 | 2011-02-16 | David Frederick Spriggs | A hydraulic pile driver with air ducts to assist in cooling |
| GB2472606B (en) * | 2009-08-12 | 2014-07-02 | David Frederick Spriggs | Noise reduction in hydraulic piling hammers |
| GB2472605B (en) * | 2009-08-12 | 2014-07-02 | David Frederick Spriggs | Improved cooling of hydraulic piling hammers |
| GB2472666B (en) * | 2009-08-12 | 2014-07-02 | David Frederick Spriggs | Noise reduction in hydraulic piling hammers |
| GB2487984A (en) * | 2011-02-14 | 2012-08-15 | David Frederick Spriggs | A pile driver with cushions to reduce impact noise |
| GB2487984B (en) * | 2011-02-14 | 2017-04-05 | Frederick Spriggs David | Noise and quake reduction in hydraulic piling hammers |
| CN102587424A (en) * | 2012-03-23 | 2012-07-18 | 唐家鹏 | External hydraulic power shock excitation equipment for building foundation pile |
| CN102587424B (en) * | 2012-03-23 | 2014-12-24 | 唐家鹏 | External hydraulic power shock excitation equipment for building foundation pile |
| CN109403324A (en) * | 2018-12-17 | 2019-03-01 | 广东力源液压机械有限公司 | A kind of diesel hammer hammer body and pile cover buffer control method and it connect buffer structure |
| JP2021134591A (en) * | 2020-02-27 | 2021-09-13 | 株式会社高知丸高 | Pile driver soundproof structure and soundproof method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3151610B2 (en) | 2001-04-03 |
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