JPH0412072Y2 - - Google Patents
Info
- Publication number
- JPH0412072Y2 JPH0412072Y2 JP1984058510U JP5851084U JPH0412072Y2 JP H0412072 Y2 JPH0412072 Y2 JP H0412072Y2 JP 1984058510 U JP1984058510 U JP 1984058510U JP 5851084 U JP5851084 U JP 5851084U JP H0412072 Y2 JPH0412072 Y2 JP H0412072Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- piston
- oil chamber
- hydraulic cylinder
- marine structure
- 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.)
- Expired
Links
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、ケーソンなどの海洋構造物の吊上げ
装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lifting device for marine structures such as caissons.
従来、海洋構造物の吊上げ運搬は、第１図に示
すように起重機船よつてなされている。
Conventionally, offshore structures have been hoisted and transported using a hoist ship, as shown in FIG.
然しながら従来の手段では次に示すような問題
点がある。
However, the conventional means have the following problems.
即ち、岸壁１などに置かれた海洋構造物２を海
上の起重機船３によつて吊り上げる際海象条件に
規制され、海洋構造物２の吊り上げが不可能な場
合があり又、吊り上げたとしても海洋構造物は第
２図に示すように常に揺れ動いており、水平方向
の揺れに対しては、防衝材などで対処できたとし
ても上下の揺れに対しては対処することが非常に
困難である。 That is, when lifting a marine structure 2 placed on a quay 1 etc. by a hoist ship 3 on the sea, it may be impossible to lift the marine structure 2 due to restrictions on sea conditions, and even if it is lifted, it may not be possible to lift it at sea. As shown in Figure 2, structures are constantly shaking, and even if horizontal shaking can be countered with shock absorbers, it is extremely difficult to deal with vertical shaking. .
尚４は起重機船フツク、５はこのフツク４より
吊りワイヤー６を介して吊下した単一の吊金具、
７はこの吊金具５と海洋構造物２間を連結する複
数の吊りワイヤーである。 In addition, 4 is a hoist ship hook, 5 is a single hanging fitting suspended from this hook 4 via a hanging wire 6,
Reference numeral 7 denotes a plurality of hanging wires that connect the hanging fitting 5 and the marine structure 2.
この海洋工事施工時の作業性、安全性、施工精
度を改善するためには、特に問題となる上下動揺
を解決することが必要不可欠である。 In order to improve workability, safety, and construction accuracy during offshore construction, it is essential to solve the vertical oscillation, which is a particular problem.
本考案の目的は上記の問題を解決した海洋構造
物の吊り上げ装置を得るにある。 The object of the present invention is to obtain a lifting device for marine structures that solves the above problems.
本考案の海洋構造物の吊り上げ装置は、単一の
吊金具と、この吊金具上に固定した複数の油圧シ
リンダと、この各油圧シリンダより上方に突出す
るピストンロツドと、このピストンロツドに吊下
した互いに分離していると海洋構造物吊下用ワイ
ヤーと、上記ピストンロツドのピストンの下面に
油圧を作用せしめるため上記各油圧シリンダ内に
形成した油室と、この各油室と共通の油圧ユニツ
ト間に介挿された、上記油室内の油圧の増、減を
軽減せしめるための共通のアキユームレータとよ
り成ることを特徴とする。
The offshore structure lifting device of the present invention includes a single lifting fitting, a plurality of hydraulic cylinders fixed on the lifting fitting, a piston rod projecting upward from each of the hydraulic cylinders, and mutually suspended piston rods. If they are separated, there will be a wire for suspending the offshore structure, an oil chamber formed in each of the hydraulic cylinders for applying hydraulic pressure to the lower surface of the piston of the piston rod, and an intermediary between each oil chamber and a common hydraulic unit. It is characterized by comprising a common accumulator inserted therein for reducing increases and decreases in the oil pressure in the oil chamber.
以下図面によつて本考案の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
本考案においては第３図に示すように吊金具５
上面に複数の油圧シリンダ８を固定し、この各油
圧シリンダ８より上方に突出するピストンロツド
９に夫々ワイヤー９′を介して互いに分離してい
る吊治具１０を吊下し、この各吊治具１０によつ
て前記海洋構造物２を夫々吊りワイヤー７を介し
て吊下せしめると共に、上記ピストンロツド９の
ピストンの下面に油圧を作用せしめるよう上記各
油圧シリンダ８内に油室を形成し、この各油室を
共通のアキユームレータ１１を介して油圧ユニツ
ト１２に連通せしめる。 In this invention, as shown in FIG.
A plurality of hydraulic cylinders 8 are fixed to the upper surface, and hanging jigs 10 separated from each other are suspended from piston rods 9 that protrude upward from each hydraulic cylinder 8 via wires 9'. 10 suspends the marine structures 2 via the respective suspension wires 7, and an oil chamber is formed in each of the hydraulic cylinders 8 to apply hydraulic pressure to the lower surface of the piston of the piston rod 9. The oil chamber is communicated with a hydraulic unit 12 via a common accumulator 11.
本考案装置は上記のような構成であるから次に
示す様に作動し、起重機船が海面のうねりによつ
て上下動しても、海洋構造物の上下動を抑制しそ
のレベルを一定にする働きがある。 Since the device of this invention has the above-mentioned configuration, it operates as shown below, and even if the hoist vessel moves up and down due to swells on the sea surface, it suppresses the up-and-down movement of the marine structure and keeps the level constant. There is work.
(1) 起重機船が上向きに揺れた場合
起重機船が波のうねりにより例えば上向きに
揺れ、海洋構造物にこれを上方に上げようとす
る力が加わる時、油圧シリンダ８内ではピスト
ンが、下降して油圧シリンダ８内の油圧が上昇
しようとする。(1) When the hoist ship is rocked upward When the hoist ship is rocked upward due to the swell of waves, and a force is applied to the marine structure to raise it upward, the piston in the hydraulic cylinder 8 moves downward. As a result, the oil pressure in the hydraulic cylinder 8 tends to rise.
通常はこの油圧上昇によりピストンの移動が
制御されるものであるが本考案装置ではアキユ
ムレータ１１の働きにより油圧シリンダ８内の
油圧は上昇せず、起重機船の上向きの移動に対
応する量だけ油圧シリンダ８内でピストンが下
降し従つて海洋構造物の上方向への移動が阻止
される。 Normally, the movement of the piston is controlled by this increase in oil pressure, but in the device of the present invention, the oil pressure in the hydraulic cylinder 8 does not increase due to the action of the accumulator 11, and the oil pressure in the hydraulic cylinder 8 is increased by an amount corresponding to the upward movement of the hoist. 8, the piston is lowered and the upward movement of the marine structure is thus blocked.
(2) 起重機船が下向きに揺れた場合
同じく起重機船が下向きに揺れ海洋構造物を
下方に降ろそうとする力が加わる時は、油圧シ
リンダ８内の油圧が下降しようとするがこの
時、アキユームレータ１１の働きにより油圧シ
リンダ８内の油圧が変化せず起重機船の下向き
の移動に対応する量だけ油圧シリンダ８内でピ
ストンが上昇し海洋構造物のレベルは一定に保
たれる。(2) When the hoist ship swings downward Similarly, when the hoist ship shakes downward and a force is applied to lower the marine structure downward, the oil pressure in the hydraulic cylinder 8 tries to fall, but at this time, the Due to the action of the hydraulic cylinder 11, the oil pressure in the hydraulic cylinder 8 does not change, and the piston rises in the hydraulic cylinder 8 by an amount corresponding to the downward movement of the hoist ship, so that the level of the marine structure is kept constant.
(3) 又油圧シリンダ８を吊金具５上に固定し、こ
の油圧シリンダ８より上方に突出するようにし
たピストンロツドにワイヤーを介して海洋構造
物２を吊下し、ピストンロツドに連結されたピ
ストンの下面に油圧シリンダ８の油圧が作用す
るようにしたので小さなピストンシリンダでよ
り安定に海洋構造物を吊下することができる。(3) In addition, the hydraulic cylinder 8 is fixed on the hanging fitting 5, and the marine structure 2 is suspended via a wire to the piston rod that projects upward from the hydraulic cylinder 8, and the piston connected to the piston rod is suspended. Since the hydraulic pressure of the hydraulic cylinder 8 is applied to the lower surface, the marine structure can be suspended more stably with a small piston cylinder.
尚第４図は海洋構造物の施工途中の状態説明ず
である。 Note that FIG. 4 does not explain the state of the marine structure in progress.
上記のように本考案装置によれば起重機船によ
る海洋構造物の吊り上げ運搬を極めて安全且つ確
実になし得る大きな利益がある。
As described above, the device of the present invention has the great advantage of allowing marine structures to be lifted and transported by a hoist vessel extremely safely and reliably.
第１図，第２図は従来装置の説明図、第３図は
本考案装置の説明図、第４図は本考案装置による
施工途中の状態説明図である。
１……岸壁、２……海洋構造物、３……起重機
船、４……起重機船フツク、５……吊金具、６，
７……吊りワイヤー、８……油圧シリンダ、９…
…ピストンロツド、９′……ワイヤー、１０……
吊治具、１１……アキユームレータ、１２……油
圧ユニツト。
1 and 2 are explanatory diagrams of the conventional apparatus, FIG. 3 is an explanatory diagram of the apparatus of the present invention, and FIG. 4 is an explanatory diagram of the state in the middle of construction by the apparatus of the present invention. 1... Quay, 2... Marine structure, 3... Hoist ship, 4... Hoist ship hook, 5... Hanging fittings, 6,
7... Hanging wire, 8... Hydraulic cylinder, 9...
...Piston rod, 9'...Wire, 10...
Lifting jig, 11...accumulator, 12...hydraulic unit.
Claims (1)
の油圧シリンダと、この各油圧シリンダより上方
に突出するピストンロツドと、このピストンロツ
ドに吊下した互いに分離している海洋構造物吊下
用ワイヤーと、上記ピストンロツドのピストンの
下面に油圧を作用せしめるため上記各油圧シリン
ダ内に形成した油室と、この各油室と共通の油圧
ユニツト間に介挿された、上記油室内の油圧の
増、減を軽減せしめるための共通のアキユームレ
ータとより成ることを特徴とする海洋構造物の吊
上げ装置。 A single hanging fixture, a plurality of hydraulic cylinders fixed on the hanging fixture, a piston rod projecting upward from each hydraulic cylinder, and wires for suspending offshore structures that are suspended from the piston rods and are separated from each other. and an oil chamber formed in each of the hydraulic cylinders for applying hydraulic pressure to the lower surface of the piston of the piston rod, and an increase in the hydraulic pressure in the oil chamber inserted between each oil chamber and a common hydraulic unit; 1. A lifting device for a marine structure, comprising: a common accumulator for reducing damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5851084U JPS60170389U (en) | 1984-04-23 | 1984-04-23 | Lifting equipment for offshore structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5851084U JPS60170389U (en) | 1984-04-23 | 1984-04-23 | Lifting equipment for offshore structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60170389U JPS60170389U (en) | 1985-11-12 |
| JPH0412072Y2 true JPH0412072Y2 (en) | 1992-03-25 |
Family
ID=30584076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5851084U Granted JPS60170389U (en) | 1984-04-23 | 1984-04-23 | Lifting equipment for offshore structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60170389U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5184275B2 (en) * | 2008-09-18 | 2013-04-17 | 鹿島建設株式会社 | Vertical sway reduction structure for work boats |
| JP6574395B2 (en) * | 2016-03-15 | 2019-09-11 | 鹿島建設株式会社 | Construction method and work table ship |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938347A (en) * | 1972-08-25 | 1974-04-10 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5189668U (en) * | 1975-01-14 | 1976-07-17 |
-
1984
- 1984-04-23 JP JP5851084U patent/JPS60170389U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938347A (en) * | 1972-08-25 | 1974-04-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60170389U (en) | 1985-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4744697A (en) | Installation and removal vessel | |
| CN105333227B (en) | Structure support device for treating suspended span of submarine pipeline | |
| NO316168B1 (en) | Procedure for transporting and installing objects at sea | |
| JPH0412072Y2 (en) | ||
| GB2191458A (en) | Semi-submersible crane vessel | |
| OA12146A (en) | Load transfer system. | |
| CN1308001A (en) | Deep-sea pile driver | |
| CN111017117B (en) | Mooring chain underwater connection method and underwater connection platform | |
| CN111232141A (en) | Marine floating body with movable ballast tank | |
| CN107618995A (en) | Novel ankle is hung | |
| CN107487724A (en) | A kind of the large-scale floating crane arm support erecting device and installation method of non-loop wheel machine auxiliary | |
| CN207631439U (en) | Large-tonnage synchronization lifting system | |
| KR20020085334A (en) | Method for Installation of an Offshore Platforms on a Substructure Without the Impact and the Load Concentration | |
| JP2001031363A (en) | Hanging frame for crane ship | |
| JP6574395B2 (en) | Construction method and work table ship | |
| CN111337281A (en) | Method for heavy-load test of semi-submersible type hoisting and disassembling platform | |
| CN104495618B (en) | Method for installing underwater overweight member by using small-sized hoisting equipment | |
| CN212076224U (en) | Maintenance crane for deck auxiliary crane | |
| JPS62139782A (en) | Attaching method for thruster to marine structure | |
| CN220432144U (en) | Swing-preventing device for hanging boat | |
| JPH0841824A (en) | Vibration control device on erection of diagonal tension bridge | |
| CN213622871U (en) | Be used for marine heavy load to lift by crane hydraulic means | |
| CN215590948U (en) | Ship positioning pile with automatic lifting function | |
| JPS6128777U (en) | Crane suspension device | |
| JPH082175Y2 (en) | Long-term holding device for lifting device |