CN112429172A - Method for installing translation crane on ship - Google Patents
Method for installing translation crane on ship Download PDFInfo
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- CN112429172A CN112429172A CN202011423842.XA CN202011423842A CN112429172A CN 112429172 A CN112429172 A CN 112429172A CN 202011423842 A CN202011423842 A CN 202011423842A CN 112429172 A CN112429172 A CN 112429172A
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- 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
- B63B73/30—Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- 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
- B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
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- 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
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
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Abstract
The invention belongs to the technical field of shipbuilding, and particularly relates to a method for installing a translational crane on a ship, which comprises the following steps: (1) preparing a translation crane during the construction of the subsection; (2) hoisting the translation hoisting beam to the inverted upper building C deck, and primarily installing and positioning the translation hoisting beam; (3) in the slipway stage, the upper building structure is lifted to the main deck, and an A deck and an C deck are built on the upper building and chimney connecting platform structure in a welded connection mode; (4) erecting a scaffold on the upper building A deck, and erecting a reverse-jacking scaffold on the upper building C deck; and a pull chain block is arranged on the reverse top of the built C deck; (5) testing the translation lifting beam before welding and ensuring the levelness of the built-up C deck; (6) connecting the built C deck and the translation lifting beam by welding; (7) testing and ensuring the levelness of the C deck after the translation lifting beam is welded; (8) installing a translation hanging accessory and debugging. The method is used for solving the technical problems of slow construction progress and high risk in the existing method.
Description
Technical Field
The invention belongs to the technical field of ship building, and particularly relates to a method for mounting a translation crane on a ship.
Background
As shown in fig. 1, a connection platform is arranged between the ship upper building 2 and the chimney 1, and comprises an upper building a deck 31 and an upper building C deck 33, the upper building a deck 31 is located above a main deck of the ship, the upper building B deck 32 is located above the upper building a deck 31 (no upper building B deck is arranged between the ship upper building and the chimney), the upper building C deck is located above the upper building B deck 32, and the ship upper building translational crane 6 is installed at the bottom of the upper building C deck.
As shown in fig. 2 and 3, the translational crane 6 built on the ship comprises a translational crane beam and related equipment accessories, wherein the related equipment accessories mainly comprise a shaft seat 613, a head lubricating device 612, a hook fixing device 611, a locking device 610, a maintenance platform 609, a cable winch 608, a crane beam 607, a rack 606, a movable beam device 605, a walking mechanism 604, a lifting device 603, a supporting mechanism 602 and a hook device 601.
In the stage of the slipway, after the building and hoisting, in order to ensure the node of the launching, the chimney after the building and hoisting has the launching condition, namely launching is selected, and some small engineering projects such as the completion of the building and the horizontal moving hoisting can be selected to be checked underwater, so that the period of the building and the chimney after the carrying and hoisting of the slipway is short.
The horizontal moving crane is installed after ship launching for a long time, on one hand, the inspection of the fire flatness of a deck C before welding, after welding and a connecting platform cannot be finished due to the fact that the period is short after the building and the chimney are lifted and carried on a slipway, on the other hand, the installation of the horizontal moving crane in an underwater stage is a conventional method, and the equipment is delivered after launching clearly in a production preparation stage.
The construction translation crane on the ship adopts underwater stage installation, and has the following problems:
firstly, the hoisting load of the wharf portal crane is increased, and the wharf portal crane is in tension in resources;
secondly, auxiliary tools such as a gourd handle are needed to be used in the installation process of the translation hanging beam, the structure of the upper building and chimney connecting platform and paint are damaged in different degrees, so that the original steel plate can be damaged by horse feet generated by repeatedly repairing, for example, a temporary lifting lug is fired in the later period, and the structure of a fired area needs to be repaired and polished in the later period;
thirdly, the lower opening of the translation lifting position is an A deck built on the connecting platform, the upper opening of the translation lifting position is a C deck built on the connecting platform, the flatness of the C deck at the upper opening is directly related to the condition of whether a translation lifting beam can be installed or not, and if the translation lifting beam is installed at a wharf stage (namely an underwater stage) in a project, the platform flame correction operation of the A deck is influenced, and the integral construction progress of an upper-built chimney is influenced; the lower opening of the translation lifting position is an A deck connecting platform, the platform is large in deformation and large in workload of initiating explosive correction, if a translation lifting beam is installed at the upper opening of a wharf stage (namely an underwater stage), initiating explosive correction of the lower platform is influenced, more vertical crossing operations are performed, and construction progress is influenced;
fourthly, when the superstructure and the chimney are carried at the slipway stage, a scaffold needs to be set up. And then the scaffold is dismantled and spraying is carried out. The translation crane is installed in a wharf stage (namely, a launching stage), a scaffold needs to be erected for the second time, so that the material cost and the working hour cost are increased, and meanwhile, the safety risk is increased.
Fifthly, in the wharf stage, the translation crane beam is welded at the bottom of the upper-building C deck, workers need to weld up, and the translation crane beam needs to be lifted to the height of the upper-building C deck, so that the operation risk is large, and the potential safety hazard is high.
Disclosure of Invention
The invention aims to provide a method for installing a translation crane on a ship, which aims to solve the technical problems of slow construction progress and high risk of the existing installation method.
In order to solve the technical problems, the invention adopts the following technical scheme that the method for installing the translation crane on the ship is characterized by comprising the following steps:
(1) preparing a translation lifting beam and related equipment accessories during the construction of the subsection;
(2) in the stage of the section building up, the translation hoisting beam is hoisted to the inverted C-deck building up, and the translation hoisting beam is initially installed and positioned on the C-deck building up;
(3) in the slipway stage, the upper building whole is lifted to the main deck, an A deck and an C deck are built on the upper building and chimney connecting platform structure in a welded connection mode, and the fireman inspection of the A deck and the C deck is carried out;
(4) after the fire work delivery test of the upper building A deck and the upper building C deck is finished, erecting a scaffold on the upper building A deck, and erecting a reverse-jacking scaffold on the upper building C deck; 4 lifting lugs (uniformly distributed) of 5T are welded on the reverse top of the built C-deck, and four lifting lugs are provided with four handle hoists for horizontal adjustment and welding of the translation lifting beam and installation and debugging of related accessories;
(5) testing the levelness of the upper-built C deck before welding the translation lifting beam, and if the levelness does not meet the requirement, performing flame correction by using a flame gun until the levelness of the C deck meets the requirement;
(6) connecting the built C deck and the translation lifting beam by welding;
(7) testing the levelness of the C deck after welding the translation lifting beam, and if the levelness does not meet the requirement, performing flame correction by using a flame gun until the levelness of the C deck meets the requirement;
(8) installing translation and hanging accessories and debugging work, removing auxiliary lifting lugs and handle hoists, finishing the treatment of the temporary lifting lug horse feet on the top of the built C deck, debugging and checking the translation lifting trolley, uniformly spraying the paint on the top of the built C deck, removing the scaffold on the top of the built A deck and the scaffold on the top of the built C deck, and finishing the repair after the paint scaffold.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the translation lifting beam is initially installed in a subsection stage, the ship berth stage is connected in a welding mode, and the relevant equipment accessories of the translation lifting are installed in the ship berth stage, so that the forward movement of the working procedure of the project is realized, and the successful implementation of the project shortens the working period of the underwater chimney erection by 1-2 days. The stage of placing the translation crane on the slipway and the stage of correcting the firer of the built-up deck A underwater effectively avoids the three-dimensional crossing operation in the area.
Secondly, the installation of the shipway stage is carried out through a simple scaffold, the existing situation of fully erecting the scaffold underwater is reduced by building an A deck scaffold and building a C deck reverse-jacking scaffold, the method for installing the platform of fully erecting the scaffold underwater is changed, the simple movable scaffold is adopted in the shipway stage, only a plurality of steel pipes, shackles and springboards are needed, the scaffold erecting amount is reduced by 70%, the scaffold construction period is shortened by 8H, and the labor cost of the single-ship scaffold is reduced by more than 600 yuan.
And thirdly, the ship platform stage finishes the translation crane debugging project, the underwater debugging workload of the ship is avoided, the inconvenience caused by the hoisting of cabin equipment is reduced, 20000 yuan/ship is saved by converting the use cost of a portal crane, the manual installation and construction cost and the equipment cabin entering cost, 10 launching ships are counted all year round, and 20 ten thousand yuan is saved by predicting the improvement of the problem all year round.
Fourthly, the translation crane is installed at the slipway stage, and secondary repair of coating cannot be caused due to burn and the like generated by using auxiliary tools such as a gourd pull handle and the like after the translation crane is installed by spraying the built-in paint system. The building and chimney connection platform in the building berth stage is installed on the reverse top and the translation is hung through the technical bottom of the operator (translation is hung on the equipment installation drawing), and the whole process of implementation is followed up from equipment positioning, welding and assembling and service provider debugging, so that one-time installation and debugging are realized, and the damage of reverse top paint is avoided.
In order to solve the technical problem of the levelness of the C deck, the invention is further improved, and the testing of the levelness of the built C deck specifically comprises the following steps: the elevation is set by taking a slipway datum line, the main deck is taken as a base point, after the fireman delivery of the upper building C deck is qualified, five measuring points are arranged in the installation area of the upper building C deck translation crane, the five measuring points are positioned at the positions of the corresponding upper building C deck in the left, right, bow and stern of the translation crane, the height data of the five measuring points of the main deck and the upper building C deck are ensured to be consistent, and the positive and negative difference of the precision is controlled within 5 MM.
In order to solve the technical problem of secondary scaffold installation in the underwater stage, the invention is further improved, and a movable scaffold with the height of 1.5 m is erected on the upper building A deck.
In order to solve the technical problem of the installation of the chain block, the invention adopts the following technical scheme that 4 temporary lifting lugs are arranged on the upper building C deck, the bearing is 5T, and the 4 temporary lifting lugs are uniformly distributed; the number of the pull-up blocks is four.
In order to solve the technical problem of how to initially install and position the translational lifting beam on the upper C deck, the invention adopts the following technical scheme that the translational lifting beam is initially installed and positioned on the upper C deck by utilizing a deck.
Drawings
FIG. 1 is a schematic diagram of a structure of a chimney and a building on a ship;
FIG. 2 is a first structural schematic diagram of a translation crane;
FIG. 3 is a second structural schematic diagram of the translational crane;
FIG. 4 is a schematic view of the construction of the translating crane in installation;
FIG. 5 is a schematic structural view of the mounted translational crane; .
Detailed Description
As shown in fig. 4, a method for installing a translation crane on a ship comprises the following steps:
(1) preparing a translation lifting beam and related equipment accessories during the construction of the subsection;
(2) in the stage of the section building up, the translation hoisting beam is hoisted to the inverted C deck 33 building up, and the translation hoisting beam is initially installed and positioned on the C deck building up by using a clamping plate (a horse plate);
(3) in the slipway stage, the upper building whole is lifted to the main deck, an upper building A deck 31 and an upper building C deck 33 are connected with the upper building and chimney connecting platform structure in a welding manner, and the fire work check of the upper building A deck and the upper building C deck is finished;
(4) after the fire work delivery of the upper building A deck and the upper building C deck is finished, erecting a scaffold 52 on the upper building A deck 31, and erecting a reverse-jacking scaffold 51 on the upper building C deck 33; 4 lifting lugs (uniformly distributed) of 5T are welded on the reverse top of the built C deck, and four chain hoists are arranged on the four lifting lugs and are used for horizontal adjustment and welding of the translation lifting beam and installation and debugging of related accessories;
(5) testing the levelness of the upper-built C deck before welding the translation lifting beam, and if the levelness does not meet the requirement, performing flame correction by using a flame gun until the levelness of the C deck meets the requirement;
the levelness of the built C deck on the test is as follows: setting an elevation by taking a slipway datum line, taking a main deck as a base point, and after the fireman delivery of the built-up C deck is qualified, setting five measuring points in the installation area of the built-up C deck translation crane, wherein the five measuring points are positioned at the positions of the corresponding built-up C deck in the left, right, bow and stern of the translation crane, so that the height data of the five measuring points of the main deck and the built-up C deck are consistent, and the positive and negative difference of the precision is controlled within 5 MM;
(6) connecting the built C deck and the translation lifting beam by welding;
(7) testing the levelness of the C deck after welding the translation lifting beam, wherein the testing method is the same as the C deck levelness testing method in the step (5), and if the levelness does not meet the requirement, performing flame correction by using a flame gun until the levelness of the C deck meets the requirement;
(8) installing translation and hanging accessories and debugging work, dismantling auxiliary lifting lugs and a pull handle hoist, finishing the treatment of the temporary lifting lug horse foot on the upper-built C deck, debugging and checking the translation lifting trolley, uniformly spraying the paint on the upper-built C deck, constructing an A deck scaffold on the upper-built C deck, dismantling the upper-built C deck reverse-top scaffold, completing the repair after the paint frame, and completing the installation of the translation lifting on the ship, wherein the view is shown in FIG. 5.
Example 1
The translation crane is one of important equipment of the bulk cargo ship, and the 82000T series bulk cargo ship is installed at a ship platform stage by forward moving in a working procedure, so that the period of the ship platform is further shortened.
A receiving period plan of the translation crane of the key equipment of the invention is made, the installation requirement time of a raw water lower stage is advanced to a building berth stage from 42#82000, and the main operation flow and period management of the installation subject of the translation crane are as follows:
1. the translation hanging beam and related equipment accessories are required to arrive at a factory during the construction and assembly, and actually arrive at 3, 5 months in 2020 of the factory;
2. building a C deck on the upper building total step for preliminary installation and positioning by using the 3-month 15-day translation lifting beam;
3. and 3, building the whole crane in 25 days in 3 months, finishing the building and chimney connection platform structure and the fire work delivery in 1 day in 4 months, and finishing the period of 7 days.
4. The installation of the horizontal moving hanging accessories and the debugging work are started in 4 months and 2 days,
5. tools such as auxiliary lifting lugs, handle hoists and the like are dismantled within 4 months and 3 days, the C deck reverse-top horse foot treatment is finished,
6. 4 months and 5 days, the trolley is translated and hung for debugging and handing over,
7. 4 months and 5 days later, the reverse top paint of the C deck is uniformly sprayed,
8. and (4) removing the A deck scaffold and the C deck reverse-jacking scaffold after 6 days in 4 months, and finishing the repair after painting the scaffold.
9. And 4, 4 months and 7 days, launching the ship, and installing and debugging the whole translation crane in the stage of the slipway for 4-5 days.
The invention solves the contradiction of placing the equipment when the translation crane is advanced to the factory, originally, the translation crane occupies total field resources because the translation crane is advanced to the factory, and the forward movement of the working procedure and the control of the equipment storage period ensure that the construction is installed more than 1 month ahead of water; 2. the process is moved forward around the translation hoisting process, and construction is carried out from an underwater stage to a slipway stage in advance due to the change of the operation environment.
The method comprises the following steps of horizontally moving a hanging beam, initially installing in a subsection stage, welding and connecting in a slipway stage, and installing the accessories of the horizontally moving hanging related equipment in the slipway stage, so that the forward movement of the working procedure of the project is realized, and the successful implementation of the project shortens the working period of the underwater chimney erection by 1-2 days. The stage of placing the translation crane on the slipway and the stage of correcting the firer of the built-up deck A underwater effectively avoids the three-dimensional crossing operation in the area.
The method for installing the platform of the underwater full-built scaffold is changed, the simple movable scaffold is adopted in the slipway stage, only a plurality of steel pipes, shackles and springboards are needed, the scaffold erection amount is reduced by 70%, the scaffold construction period is shortened by 8H, and the labor cost of the single-ship scaffold is reduced by more than 600 yuan.
The method has the advantages that the ship berth stage finishes the translation crane debugging project, the underwater debugging workload of the ship is avoided, the inconvenience caused by the hoisting of cabin equipment is reduced, 20000 yuan/ship is saved by converting the use cost of a portal crane, the manual installation and construction cost and the equipment cabin entering cost, 10 launching ships are counted all the year round, and 20 ten thousand yuan is saved by predicting the improvement of the problem all the year round.
According to the invention, the translation crane is installed at the slipway stage, and secondary repair of coating can not be generated due to burn and the like generated by using auxiliary tools such as a gourd pull handle and the like after the built paint system is sprayed on the translation crane. The building and chimney connection platform in the building berth stage is installed on the reverse top and the translation is hung through the technical bottom of the operator (translation is hung on the equipment installation drawing), and the whole process of implementation is followed up from equipment positioning, welding and assembling and service provider debugging, so that one-time installation and debugging are realized, and the damage of reverse top paint is avoided.
Claims (5)
1. A method for installing a translation crane on a ship is characterized by comprising the following steps:
(1) preparing a translation lifting beam and related equipment accessories during the construction of the subsection;
(2) in the stage of the section building up, the translation hoisting beam is hoisted to the inverted C-deck building up, and the translation hoisting beam is initially installed and positioned on the C-deck building up;
(3) in the slipway stage, the upper building whole is lifted to the main deck, an A deck and an C deck are built on the upper building and chimney connecting platform structure in a welded connection mode, and the fireman inspection of the A deck and the C deck is carried out;
(4) after the fire work delivery of the upper building A deck and the upper building C deck is finished, erecting a scaffold on the upper building A deck, and erecting a reverse-jacking scaffold on the upper building C deck; a C deck is built on the upper portion, a temporary lifting lug is welded on the reverse top of the C deck, and a chain block is installed on the lifting lug and used for horizontal adjustment and welding of the translation lifting beam and installation and debugging of related equipment accessories;
(5) testing the levelness of the upper-built C deck before welding the translation lifting beam, and if the levelness does not meet the requirement, performing flame correction by using a flame gun until the levelness of the C deck meets the requirement;
(6) connecting the built C deck and the translation lifting beam by welding;
(7) testing the levelness of the C deck after welding the translation lifting beam, and if the levelness does not meet the requirement, performing flame correction by using a flame gun until the levelness of the C deck meets the requirement;
(8) installing translation and hanging accessories and debugging work, removing auxiliary lifting lugs and handle hoists, finishing the treatment of the temporary lifting lug horse plate on the top of the built C deck, debugging and checking the translation lifting trolley, uniformly spraying the paint on the top of the built C deck, removing the scaffold on the top of the built A deck and the scaffold on the top of the built C deck, and finishing the repair after the paint shelf.
2. The method for installing the translational crane on the ship, as claimed in claim 1, wherein the step of testing the levelness of the upper building C deck comprises the following steps: the elevation is set by taking a slipway datum line, the main deck is taken as a base point, after the fireman delivery of the upper building C deck is qualified, five measuring points are arranged in the installation area of the upper building C deck translation crane, the five measuring points are positioned at the positions of the corresponding upper building C deck in the left, right, bow and stern of the translation crane, the height data of the five measuring points of the main deck and the upper building C deck are ensured to be consistent, and the positive and negative difference of the precision is controlled within 5 MM.
3. The method for installing the ship onboard translation crane according to claim 1, wherein a mobile scaffold with the height of 1.5 m is erected on the upper building A deck.
4. The method for installing the ship onboard translation crane according to claim 1, wherein the number of the temporary lifting lugs on the upper building C deck is 4, the load bearing capacity is 5T, and the 4 temporary lifting lugs are uniformly distributed; the number of the pull-up blocks is four.
5. The method for installing the translational crane on the ship as claimed in claim 1, wherein a deck C is built on the ship by using a horse board to initially install and position the translational crane beam.
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| CN202011423842.XA CN112429172B (en) | 2020-12-08 | 2020-12-08 | Method for installing translation crane on ship |
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| CN202011423842.XA CN112429172B (en) | 2020-12-08 | 2020-12-08 | Method for installing translation crane on ship |
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| CN112429172A true CN112429172A (en) | 2021-03-02 |
| CN112429172B CN112429172B (en) | 2021-10-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113911283A (en) * | 2021-11-19 | 2022-01-11 | 中船桂江造船有限公司 | Method for shortening ship construction period based on ship shafting construction process |
| CN115258083A (en) * | 2022-08-19 | 2022-11-01 | 上海外高桥造船有限公司 | Method for manufacturing cruise ship by sections |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113911283A (en) * | 2021-11-19 | 2022-01-11 | 中船桂江造船有限公司 | Method for shortening ship construction period based on ship shafting construction process |
| CN115258083A (en) * | 2022-08-19 | 2022-11-01 | 上海外高桥造船有限公司 | Method for manufacturing cruise ship by sections |
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| CN112429172B (en) | 2021-10-29 |
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