CN112319728A - Method for fixing zero position of rudder blade of launching ship of inclined slipway - Google Patents
Method for fixing zero position of rudder blade of launching ship of inclined slipway Download PDFInfo
- Publication number
- CN112319728A CN112319728A CN202011305705.6A CN202011305705A CN112319728A CN 112319728 A CN112319728 A CN 112319728A CN 202011305705 A CN202011305705 A CN 202011305705A CN 112319728 A CN112319728 A CN 112319728A
- Authority
- CN
- China
- Prior art keywords
- rudder
- fixing
- rudder blade
- zero position
- blade
- 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
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000009471 action Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a method for fixing a zero position of a rudder blade of an underwater ship with an inclined slipway. The rudder blade, rudderstock and rudder bearing installation finish and the rudder blade is in the zero-bit before boats and ships launch, utilize ratchet jack and round steel bar cooperation to fix the rudder carrier in order to prevent it from rotating, the spud pile of takeing root and utilize hoisting rope circle and chain block to pull the tiller from four directions on the rudder frame, form the device of fixed rudder blade zero-bit: firstly, two-by-two butting of four ratchet jacks are abutted against a bolt of a steering gear bearing frame, one end of a round steel bar stock is abutted against a bottom plate of the ratchet jack, and the other end of the round steel bar stock is rooted and welded on a web plate of a steering gear seat. Then, four hoisting rope rings are sleeved at the U-shaped bent position at the bottom of the opening of the rudder stock, a fixed pile for rooting is arranged on a panel of the rudder base, one end of the chain block hooks the hoisting rope rings, and the other end of the chain block hooks an eye plate on the fixed pile. The invention utilizes the operating characteristic of the rotation of the rudder system to firmly fix the rudder blade at the zero position, is convenient to remove, and can recycle all the components. The method is suitable for being used as a method for fixing the zero position of the rudder blade.
Description
Technical Field
The invention relates to a rudder blade in the field of ship construction, in particular to a method for fixing the rudder blade at a zero position in the launching process of a ship on an inclined slipway, and particularly relates to a method for fixing the rudder blade at the zero position of the ship on the inclined slipway.
Background
The rudder device is one of the important systems on the ship and is mainly used for controlling the movement direction of the ship. When a newly-built ship launches from an inclined berth, the steering engine is not installed and debugged, the rudder blade can deflect under the action of impact force, and the launching sliding track of the ship deviates from a safe area easily. Meanwhile, the existing installation process requires that the rudder blade is in a zero position when the steering engine is installed, namely, the rudder angle is zero, the weight of the rudder blade and a rudder stock of a large ship can reach hundreds of tons, and the rudder blade is difficult to adjust back when deviating from the zero position after launching. Therefore, a simple, safe and reliable method for fixing the zero position of the rudder blade is needed to be invented, and the rudder blade can be kept at the zero position after a ship launches from an inclined ship platform.
Disclosure of Invention
The invention provides a method for fixing the zero position of a rudder blade of an underwater ship with an inclined slipway, aiming at realizing the installation of a steering engine in the safe launching and mooring stages of the ship and solving the technical problem that the rudder blade keeps the zero position after the ship is launched. According to the method, the hoisting rope ring, the chain block and the ratchet jack tool are matched and used in the rudder cabin, so that the rudder blade is reliably fixed at the zero position, the rudder blade is guaranteed not to deflect due to impact force in the launching process, the steering engine is convenient to install in the mooring stage, and the technical problem that the rudder blade is kept at the zero position after the ship launches is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for fixing the zero position of a rudder blade of an underwater ship with an inclined slipway comprises the steps of finishing the installation of the rudder blade, a rudder stock and a rudder carrier before the ship is launched, fixing the rudder carrier by utilizing the matching of a ratchet jack and a round steel bar to prevent the rudder blade from rotating, fixing a rooting fixing pile on a rudder base, pulling a rudder handle from four directions by utilizing a hoisting rope ring and a chain block, fixing the rudder carrier and the rudder handle, and preventing the rudder blade 5 from deflecting in the launching process of the ship to form a device for fixing the zero position of the rudder blade; after the rudder carrier and the rudder stock are fixed, the ship can launch, and the device for fixing the zero position of the rudder blade is removed before the steering engine is installed in the mooring stage; the method for fixing the zero position of the rudder blade comprises the following steps:
firstly, two pairs of four ratchet jacks are abutted against a bolt of a rudder carrier, one end of a round steel bar props against a bottom plate of the ratchet jack, the other end of the round steel bar takes root and is welded on a web plate of a base of the rudder, after the four ratchet jacks simultaneously prop against the end part of the bolt of the rudder carrier, the restraint borne by the rudder carrier can be transferred to a rudder stock and a rudder blade, and the restraint plays a role when the rudder blade has a deflection tendency under the action of external force.
Then, four hoisting rope rings are sleeved at the U-shaped bent position at the bottom of the opening of the rudder stock, a fixing pile takes root on a panel of the rudder base, one end of the chain block hooks the hoisting rope rings, the other end of the chain block hooks an eye plate on the fixing pile, after the chain block is tightened, the restraint borne by the rudder stock can be transferred to the rudder stock and the rudder blade, and the restraint plays a role when the rudder blade has a deflection tendency under the action of external force.
In order to further solve the technical problem to be solved by the invention, in the device for fixing the zero position of the rudder blade, the device for fixing the zero position of the rudder blade comprises a ratchet jack at the end part of a bolt of a rudder carrier, a round steel bar material positioned between a bottom plate of the ratchet jack and a web plate of a steering engine seat, a fixed pile welded on the steering engine seat, a hoisting rope ring sleeved at the U-shaped bent position at the bottom of an opening of the rudder handle, and a chain block for connecting the fixed pile and the hoisting rope ring.
Furthermore, the fixing piles are respectively positioned on the left side and the right side of the upper panel of the steering engine seat, two eye plates are arranged on each fixing pile, hook heads of the chain blocks can be positioned, and the four chain blocks form a diamond shape.
Furthermore, the spud pile cylinder is thick wall steel pipe, and the bottom has three brackets as the enhancement of takeing root, and the eye plate welding is on the spud pile cylinder surface, and two eye plates are arranged and are the V-arrangement.
The method has the advantages that the operating characteristic of rudder system rotation is utilized to firmly fix the rudder blade at the zero position, and compared with a method for directly fixing the rudder blade outboard, the method is used for construction in a rudder cabin, and the safety is better. The device not only has high positioning accuracy, but also has the advantages of compact and simple structure, convenient operation, low cost and the like, is convenient to install and dismantle in a narrow area of the rudder engine room, can repeatedly use all the components, and reduces the production cost. The method is suitable for being used as a method for fixing the zero position of the rudder blade of the launching ship of the inclined slipway.
Drawings
FIG. 1 is a view showing the structure of the apparatus of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of the present invention;
FIG. 3 is a cross-sectional view of the present invention taken along line B-B;
FIG. 4 is a cross-sectional view of the present invention taken along line C-C;
in the figure, 1, a rudder base, 2, a rudder handle, 3, a rudder carrier, 4, a rudder stock, 5, a rudder blade, 6, a hoisting rope ring, 7, a chain block, 8, a fixing pile, 9, a round steel bar, 10, a ratchet jack and 11, a rudder carrier bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the figure, the method for fixing the zero position of the rudder blade of the launching ship of the inclined slipway is characterized in that before the ship launches, the rudder blade 5, the rudder stock 4 and the rudder carrier 3 are completely installed, the rudder blade 5 is in the zero position, and the ratchet jack 10 is matched with a round steel bar 9 to fix the rudder carrier 3 to prevent the rudder carrier from rotating; a root fixing pile 8 is arranged on the steering engine seat 1, the tiller 2 is pulled from four directions by utilizing a hoisting rope ring 6 and a chain block 7, the rudder carrier 3 and the tiller 2 are fixed, and the rudder blade 5 is prevented from deflecting in the process of launching a ship, so that a device for fixing the zero position of the rudder blade is formed; after the rudder carrier 3 and the rudder stock 2 are fixed, the ship can launch, and the device for fixing the zero position of the rudder blade is removed before the steering engine is installed in the mooring stage; the method for fixing the zero position of the rudder blade comprises the following steps:
firstly, two pairs of four ratchet jacks 10 are abutted against a rudder carrier bolt 11, one end of a round steel bar 9 abuts against a base plate of the ratchet jack 10, the other end of the round steel bar is rooted and welded on a web plate of a rudder machine base 1, the four ratchet jacks 10 simultaneously abut against the end part of the rudder carrier bolt 11, the restraint borne by the rudder carrier can be transmitted to a rudder stock 4 and a rudder blade 5, and the restraint plays a role when the rudder blade 5 has a deflection tendency under the action of external force.
Then, four hoisting rope rings 6 are sleeved at the U-shaped bent position at the bottom of the opening of the rudder stock 2, a fixed pile 8 for rooting is arranged on a panel of the steering engine base 1, one end of a chain block 7 hooks the hoisting rope rings 6, the other end of the chain block hooks an eye plate on the fixed pile 8, after the chain block 7 is tensioned, the restraint borne by the rudder stock 2 can be transmitted to the rudder stock 4 and the rudder blade 5, and the restraint plays a role when the rudder blade 5 has a deflection tendency under the action of external force.
The device for fixing the zero position of the rudder blade comprises a ratchet jack 10 at the end part of a rudder carrier bolt 11, a round steel bar 9 positioned between a bottom plate of the ratchet jack 10 and a web plate of a steering engine base 1, a fixing pile 8 welded on the steering engine base 1, a hoisting rope ring 6 sleeved at the U-shaped bent position at the bottom of an opening of the rudder handle 2, and a chain block 7 for connecting the fixing pile 8 and the hoisting rope ring 6.
The fixing piles 8 are respectively positioned on the left side and the right side of the upper panel of the rudder engine base 1, two eye plates are arranged on each fixing pile 8, hook heads of the chain blocks 7 can be positioned, and the four chain blocks 7 form a diamond shape.
The 8 cylinders of spud pile are thick wall steel pipes, and the bottom has three brackets as the enhancement of taking root, and the eye plate welding is on 8 cylinders of spud pile's surface, and two eye plates are arranged and are the V-arrangement.
The working principle of the invention is as follows:
before the ship is launched, the rudder blade, the rudder stock and the rudder carrier are installed, the rudder blade is in a zero position, every two ratchet wheel jacks butt against the rudder carrier bolt, one end of a round steel bar props against a ratchet wheel jack base plate, the other end of the round steel bar is rooted and welded on a rudder engine base web, and when the rudder blade drives the rudder stock and the rudder carrier 3 to rotate, the ratchet wheel jacks act a pair of reverse force couples on the rudder carrier to restrain deflection of the rudder blade, so that the rudder blade is ensured to be in the zero position.
The hoisting rope ring, the fixing pile and the chain block form the restraint on the rudder stock, and the rudder stock, the rudder stock and the rudder blade are connected into a complete rigid body, so the restraint can be transmitted to the rudder blade to prevent the rudder blade from deflecting.
The working process of the invention is as follows:
1) before launching a ship, the rudder blade, the rudder stock and the rudder carrier are completely installed and the rudder blade is ensured to be in a zero position;
2) welding a fixing pile on the rudder base, wherein the rooting fillet weld is fillet weld;
3) the four ratchet jacks are abutted against the bolt of the rudder bearing frame in pairs, one end of a round steel bar material abuts against the bottom plate of the ratchet jack, the other end of the round steel bar material takes root and is welded on the web plate of the rudder machine base, and the heights of the jacks are adjusted to realize that the contact surfaces are completely attached to the joints without gaps.
4) Four hoisting rope rings are sleeved at the U-shaped bent position of the bottom of the opening of the tiller, one end of the chain block hooks the hoisting rope rings, the other end of the chain block hooks the eye plate on the fixing pile, and the hoisting rope rings are in a tightened state by utilizing the chain block.
5) And (4) observing the rotation angle of the tiller at any time in the process of executing the step 3) and the step 4), and ensuring that the rudder blade is in a zero position.
6) And (4) reexamining the deflection amount of the rudder blade after the ship is launched, and dismantling the fixing tool before the steering engine is installed.
The invention has the characteristics that:
1. positioning constraints are simultaneously applied to the rudder carrier and the rudder stock, so that the reliability is higher;
2. the structure is compact, simple and light, and large-scale hoisting equipment is not required for installation;
3. the installation and the removal are convenient in a narrow area of the rudder cabin;
4. all parts can be repeatedly used, and the production cost is reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. A method for fixing a zero position of a rudder blade of an underwater ship with an inclined slipway is characterized by comprising the following steps: before the ship launches, the rudder blade (5), the rudder stock (4) and the rudder carrier (3) are installed, the rudder blade (5) is in a zero position, and the ratchet jack (10) and the round steel bar (9) are matched with each other to fix the rudder carrier to prevent the rudder carrier from rotating; a fixed pile (8) is rooted on a rudder base (1), a rudder handle (2) is pulled from four directions by utilizing a hoisting rope ring (6) and a chain block (7), a rudder bearing frame (3) and the rudder handle (2) are fixed, and a rudder blade (5) is prevented from deflecting in the process of launching a ship, so that a device for fixing the zero position of the rudder blade is formed; after the rudder carrier (3) and the rudder stock (2) are fixed, the ship can launch, and before the steering engine is installed in the mooring stage, the device for fixing the zero position of the rudder blade is removed; the method for fixing the zero position of the rudder blade comprises the following steps:
firstly, two ratchet wheel jacks (10) are butted against a rudder bearing frame bolt (11), one end of a round steel bar (9) props against a bottom plate of the ratchet wheel jack (10), the other end of the round steel bar is rooted and welded on a web plate of a rudder base (1), after the four ratchet wheel jacks (10) simultaneously prop against the end part of the rudder bearing frame bolt (11), the restraint borne by a rudder bearing frame (3) can be transmitted to a rudder stock (4) and a rudder blade (5), and when the rudder blade (5) has a deflection tendency under the action of external force, the restraint can play a role;
then, four hoisting rope rings (6) are sleeved at the U-shaped bent position of the bottom of the opening of the rudder stock (2), a fixing pile (8) for rooting is arranged on a panel of the rudder base (1), one end of the chain block (7) hooks the hoisting rope rings (6), the other end of the chain block hooks an eye plate on the fixing pile (8), after the chain block (7) is tensioned, the restraint borne by the rudder stock (2) can be transmitted to the rudder stock (4) and the rudder blade (5), and the restraint plays a role when the rudder blade (5) is deflected under the action of external force.
2. The method for fixing the zero position of the rudder blade of the inclined slipway launching ship according to claim 1, which is characterized in that:
the device for fixing the zero position of the rudder blade comprises a ratchet jack (10) at the end part of a rudder carrier bolt (11), round steel bars (9) between a bottom plate of the ratchet jack (10) and a web plate of a rudder base (1), a fixing pile (8) welded on the rudder base (1), a hoisting rope ring (6) sleeved at the U-shaped bent position at the bottom of an opening of a rudder handle (2), and a chain block (7) connected with the fixing pile (8) and the hoisting rope ring (6).
3. The method for fixing the zero position of the rudder blade of the inclined slipway launching ship according to claim 1, which is characterized in that:
the fixing piles (8) are respectively positioned on the left side and the right side of an upper panel of the rudder engine base (1), each fixing pile (8) is provided with two eye plates, hook heads of the chain blocks (7) can be positioned, and the four chain blocks (7) form a diamond shape.
4. The method for fixing the zero position of the rudder blade of the inclined slipway launching ship according to claim 3, which is characterized in that:
the column body of the fixing pile (8) is a thick-wall steel tube, three brackets are arranged at the bottom of the column body to be used as rooting reinforcements, the eye plates are welded on the outer surface of the column body of the fixing pile (8), and the two eye plates are arranged in a V shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305705.6A CN112319728B (en) | 2020-11-19 | 2020-11-19 | Method for fixing zero position of rudder blade of launching ship of inclined slipway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011305705.6A CN112319728B (en) | 2020-11-19 | 2020-11-19 | Method for fixing zero position of rudder blade of launching ship of inclined slipway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112319728A true CN112319728A (en) | 2021-02-05 |
| CN112319728B CN112319728B (en) | 2022-03-11 |
Family
ID=74321749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011305705.6A Active CN112319728B (en) | 2020-11-19 | 2020-11-19 | Method for fixing zero position of rudder blade of launching ship of inclined slipway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112319728B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371170A (en) * | 2021-07-07 | 2021-09-10 | 江苏海事职业技术学院 | Novel hydraulic steering engine for ship |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046691A (en) * | 2000-08-08 | 2002-02-12 | Japan Hamuwaaji Kk | Steering engine installation method and rotary vane type steering engine |
| JP2005247122A (en) * | 2004-03-04 | 2005-09-15 | Oshima Shipbuilding Co Ltd | Rudder device and its mounting method |
| CN101254821A (en) * | 2008-04-15 | 2008-09-03 | 泰州口岸船舶有限公司 | Underwater installation method of ship rudder system |
| CN106005249A (en) * | 2016-08-05 | 2016-10-12 | 广船国际有限公司 | Rudder blade fixing tool and ship |
| CN106184609A (en) * | 2015-05-08 | 2016-12-07 | 江南造船(集团)有限责任公司 | Semi-spade rudder installation method under half ship floating state |
| CN107571966A (en) * | 2017-09-22 | 2018-01-12 | 南通如港船舶配套机械有限公司 | A kind of method that shipping rudder system is installed under water |
| CN108891527A (en) * | 2018-06-21 | 2018-11-27 | 招商局重工（江苏）有限公司 | A kind of rudder blade mounting tool and installation method |
| CN108945378A (en) * | 2018-07-27 | 2018-12-07 | 广船国际有限公司 | A kind of ship launching rudder blade guard method |
| CN110239699A (en) * | 2019-06-27 | 2019-09-17 | 江苏新扬子造船有限公司 | A kind of tiller rudder stock adapting device and its working method |
| CN110510060A (en) * | 2019-08-30 | 2019-11-29 | 上海振华重工启东海洋工程股份有限公司 | A kind of tooling for being applicable to rudder blade and propeller and installing and opening and inspecting |
-
2020
- 2020-11-19 CN CN202011305705.6A patent/CN112319728B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002046691A (en) * | 2000-08-08 | 2002-02-12 | Japan Hamuwaaji Kk | Steering engine installation method and rotary vane type steering engine |
| JP2005247122A (en) * | 2004-03-04 | 2005-09-15 | Oshima Shipbuilding Co Ltd | Rudder device and its mounting method |
| CN101254821A (en) * | 2008-04-15 | 2008-09-03 | 泰州口岸船舶有限公司 | Underwater installation method of ship rudder system |
| CN106184609A (en) * | 2015-05-08 | 2016-12-07 | 江南造船(集团)有限责任公司 | Semi-spade rudder installation method under half ship floating state |
| CN106005249A (en) * | 2016-08-05 | 2016-10-12 | 广船国际有限公司 | Rudder blade fixing tool and ship |
| CN107571966A (en) * | 2017-09-22 | 2018-01-12 | 南通如港船舶配套机械有限公司 | A kind of method that shipping rudder system is installed under water |
| CN108891527A (en) * | 2018-06-21 | 2018-11-27 | 招商局重工（江苏）有限公司 | A kind of rudder blade mounting tool and installation method |
| CN108945378A (en) * | 2018-07-27 | 2018-12-07 | 广船国际有限公司 | A kind of ship launching rudder blade guard method |
| CN110239699A (en) * | 2019-06-27 | 2019-09-17 | 江苏新扬子造船有限公司 | A kind of tiller rudder stock adapting device and its working method |
| CN110510060A (en) * | 2019-08-30 | 2019-11-29 | 上海振华重工启东海洋工程股份有限公司 | A kind of tooling for being applicable to rudder blade and propeller and installing and opening and inspecting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371170A (en) * | 2021-07-07 | 2021-09-10 | 江苏海事职业技术学院 | Novel hydraulic steering engine for ship |
| CN113371170B (en) * | 2021-07-07 | 2023-09-05 | 江苏海事职业技术学院 | Ship hydraulic steering engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112319728B (en) | 2022-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2804805B1 (en) | Mooring structure mounted on a vessel | |
| US7455478B2 (en) | Method for cutting and removing underwater pipelines and apparatus for implementing the same | |
| CN106759331B (en) | Overwater piling device | |
| CN112319728B (en) | Method for fixing zero position of rudder blade of launching ship of inclined slipway | |
| US4229121A (en) | Concrete removal apparatus | |
| JPH0635280B2 (en) | Helicopter control device on ship deck | |
| KR200495110Y1 (en) | Dismembering jig for locking pin of Quick Release Hook | |
| CN109398640A (en) | A kind of inclined building berth ship launching manual operation anchor tripping gear and method | |
| US4345536A (en) | Vessel raising heavy structures | |
| EP3992368B1 (en) | Jack-up platform with receiving space for a barge and method for offshore installation of a wind turbine | |
| CN214451663U (en) | Overwater pole type equipment system | |
| CN110696976B (en) | Crane vessel and hoisting operation method | |
| CN103979083A (en) | Self-propelled barge for floating and supporting jacket chunk and work method thereof | |
| KR20180042940A (en) | Cradle seated thruster propeller fixing part and method of lifting the fixing part | |
| WO2016013635A1 (en) | Fixing method for portal crane, and fixing structure for portal crane | |
| US20010039909A1 (en) | Reciprocating barge coupling device | |
| CN211869612U (en) | Quick connecting device for ship body | |
| CN212267762U (en) | Ship anchor receiving and releasing bracket | |
| CN109398641A (en) | A kind of inclined building berth ship launching manual operation anchor tripping gear | |
| CN112623116B (en) | Water pole type equipment system | |
| CN211107920U (en) | Device for entering cabin of ship generator | |
| GB1594535A (en) | Construction and installation of marine risers | |
| JPH08282580A (en) | Fixing/moving method and device for working barge | |
| JP4224693B2 (en) | Propeller installation / removal device | |
| CN109703695B (en) | Marine mast device capable of being manually laid down or erected |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20210205 Assignee: Huludao Xintuo Technology Co.,Ltd. Assignor: BOHAI Shipbuilding Heavy Industry Co.,Ltd. Contract record no.: X2023980047003 Denomination of invention: A Method for Fixing the Zero Position of Rudder Blades in Ship Launching on an Oblique Shipway Granted publication date: 20220311 License type: Common License Record date: 20231115 |