CN112319725A - Method for hoisting and docking annular main section of fishery scientific investigation ship - Google Patents
Method for hoisting and docking annular main section of fishery scientific investigation ship Download PDFInfo
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- CN112319725A CN112319725A CN202011013191.7A CN202011013191A CN112319725A CN 112319725 A CN112319725 A CN 112319725A CN 202011013191 A CN202011013191 A CN 202011013191A CN 112319725 A CN112319725 A CN 112319725A
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- hoisting
- steel pier
- support steel
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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
- B63B73/30—Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a method for hoisting and docking an annular main section of a fishery scientific investigation ship, which comprises the following steps: the ship body is characterized in that a plane supporting steel pier and an inclined plane supporting steel pier are arranged, a guide chute is arranged on one side of the plane supporting steel pier, which is far away from the ship body, and a steel pier guide wheel is arranged on one side of the inclined plane supporting steel pier, which is far away from the ship body; connecting a plane support steel pier and an inclined plane support steel pier through a support pipe column, selecting two gantry cranes for combined hoisting, respectively connecting fishhooks hoisted by the gantry cranes with a self-balancing hoisting row, arranging four lower fixed pulleys at the lower end of the self-balancing hoisting row, connecting the lower fixed pulleys in series through lower transition steel wire ropes, forming three annular hanging points on the lower transition steel wire ropes, arranging upper and middle transition pulleys in the annular hanging points, and respectively connecting the upper and middle transition pulleys with the lower and middle transition pulleys; the annular hanging strip sequentially passes through the steel pier guide wheel and the guide chute; the gantry crane hoists the annular total section in place. The invention can improve the carrying efficiency and reduce the influence caused by the self weight of the tool when the block is hoisted by the traditional process.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a method for hoisting and docking an annular main section of a fishery scientific investigation ship.
Background
The carrying in the ship building process refers to the process that a ship body is combined into a whole ship by sections or total sections, the fishery scientific investigation ship is different from a conventional ship type, and the ship has the characteristics of thin plate, weak structure and complex and dense equipment, so that the structural deformation and the protection measures of pre-buried equipment are fully considered when the ship is hoisted, docked and carried. Therefore, in the traditional hoisting method, a rigid bracket is used as a platform, and a supporting steel pier and a wedge-shaped pier wood hull annular total section are arranged on the bracket. And hoisting rings are arranged on two sides of the bracket, and the block is connected with the hoisting rings on two sides of the steel beam through steel wire ropes for hoisting. Although the steel beam can bear the compressive stress generated during hoisting, the hoisting deformation of the main section is reduced. But the self weight of the steel beam is large, and the steel blocks are required to be repeatedly arranged when the total assembly platform is hoisted to a dock or a slipway, so that the workload of placing the docking blocks is also large. In order to meet the safe hoisting weight of the crane, the total segment weight is required to be strictly controlled. On the other hand, the occupied space of the steel beam is large when the steel beam is idle, and inconvenience is brought to maintenance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for hoisting and docking an annular main section of a fishery scientific investigation ship.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for hoisting and docking an annular main section of a fishery scientific investigation ship, which comprises the following steps of:
the method comprises the steps that firstly, a plane support steel pier and an inclined plane support steel pier are arranged, the plane support steel pier is arranged in the middle of a ship bottom, the inclined plane support steel piers are arranged at the bilge part of the ship bottom and located on two sides of the plane support steel pier, the plane support steel piers and the inclined plane support steel piers are arranged in the direction of the ship length, a guide chute is arranged on one side, away from a ship body, of the plane support steel pier, and a steel pier guide wheel is arranged on one side, away from the ship body, of the inclined plane support steel pier;
secondly, connecting a plane support steel pier arranged along the ship length direction and an inclined plane support steel pier arranged along the ship length direction through support pipe columns respectively, connecting the plane support steel pier and the inclined plane support steel pier on the same cross section through the support pipe columns, and forming a pulley hoisting group by the plane support steel pier and the inclined plane support steel pier on the same cross section;
selecting two gantry cranes for combined hoisting, wherein each gantry crane comprises two upper trolleys and a lower trolley, the two upper trolleys are hung and hooked through a parallel hook hanging row, the upper trolleys and the lower trolleys are positioned on two sides of a ship body, the lower trolley and a fishhook at the lower end of the parallel hook hanging row are respectively connected with a self-balancing hanging row, the lower end of the self-balancing hanging row is provided with four lower fixed pulleys, the four lower fixed pulleys are connected in series through lower transition steel wire ropes, three annular hanging points are formed on the lower transition steel wire ropes, upper middle transition pulleys are arranged in the three annular hanging points, and the three upper middle transition pulleys are respectively connected with lower middle transition pulleys;
step four, each lower transition pulley is connected with an adjacent pulley hoisting group through an annular hanging strip, and the annular hanging strips sequentially penetrate through a steel pier guide wheel and a guide chute of the pulley hoisting group;
and step five, gradually tightening the transition steel wire rope and the annular hanging strip by the lower trolley and the fishhooks of the parallel hanging row, and hoisting the annular total section in place.
As a preferred technical scheme, in the first step, the guide chute is made of cast steel, chamfers are arranged on the periphery of the guide chute, the steel pier guide wheel comprises a guide wheel mounting surface, a connecting seat plate, a guide wheel support, a connecting bolt, a fixing nut and a guide wheel roller wheel, the guide wheel mounting surface is welded on the inclined surface support steel pier, the connecting seat plate is welded on the guide wheel mounting surface, the connecting bolt is welded on the connecting seat plate, a section of the connecting bolt, which is close to the connecting seat plate, is a non-threaded section, the guide wheel support is a U-shaped frame, a mounting hole for the connecting bolt to pass through is formed in the closed end of the guide wheel support, the connecting bolt passes through the mounting hole and then is fastened through the fixing nut, and the guide wheel roller wheel shaft is mounted on one.
According to the preferable technical scheme, fixing eye plates are welded on the side faces of the plane supporting steel pier and the inclined plane supporting steel pier, a pipe column eye plate is arranged at the end portion of the supporting pipe column, and the fixing eye plates are connected with the pipe column eye plates through bolts.
As the preferred technical scheme, the welding has first triangle bracket on the fixed eye plate, the welding has the second triangle bracket on the tubular column eye plate, fixed eye plate the downside of tubular column eye plate is provided with the limiting plate, the limiting plate with the plane support steel mound the welding has the third triangle bracket between the inclined plane support steel mound.
In the third step, the hoisting weight of the gantry cranes is 700T, and the two gantry cranes are arranged in opposite directions.
According to a preferable technical scheme, in the fourth step, sling guide wheels are arranged on two sides of the ship body, and the annular sling sequentially penetrates through the sling guide wheels, the steel pier guide wheels and the guide sliding groove.
As a preferable technical scheme, in the fifth step, before hoisting, positions of the annular hanging strip, the steel pier guide wheel, the hanging strip guide wheel and the guide sliding groove are checked, after the checking, the block is hoisted, after the block is hoisted, hoisting is stopped when the block is 100mm away from the ground, and hoisting is continued after the hoisting state tends to be stable.
As a preferable technical scheme, skid blocks are arranged between the plane support steel piers and the ship body and between the inclined plane support steel piers and the ship body.
Compared with the prior art, the invention has the beneficial effects that:
according to the method, the annular hanging strip and the support steel piers are combined for hoisting, the support steel piers used in the process of building the annular block can be directly used for hoisting the annular block to a dock or a slipway for carrying, the secondary arrangement of the support steel piers is not needed in the carrying process, the carrying efficiency is improved, the carrying cost is reduced, the influence caused by the self weight of the tool in the hoisting process of the traditional process is reduced, the outfitting rate is improved, the bottleneck problem that the outfitting rate of the large block in the traditional process is limited by weight and cannot be increased is solved, the tool in the method is easy to install, and the occupied area is small.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic side structure diagram of the ring-shaped total section hoisting and docking station of the fishery scientific investigation ship.
Fig. 2 is a schematic diagram of the transverse structure of the ring-shaped total section hoisting docking station of the fishery scientific investigation ship.
Fig. 3 is a schematic structural view of the guide chute of the present invention.
Fig. 4 is a schematic structural view of the steel pier guide wheel of the present invention.
FIG. 5 is a schematic view of the connection structure of the support columns of the present invention.
Wherein the reference numerals are specified as follows: the device comprises a parallel hook hanging row 1, a self-balancing hanging row 2, a lower fixed pulley 3, a lower transition steel wire rope 4, an upper middle transition pulley 5, an annular hanging strip 6, a supporting pipe column 7, an inclined plane supporting steel pier 8, a plane supporting steel pier 9, a hanging strip guide wheel 10, a guide wheel roller wheel 11, a guide wheel bracket 12, a connecting seat plate 13, a fixing nut 14, a fixing gasket 15, a guide wheel mounting surface 16, a guide chute 17, a fixing eye plate 18, a first triangular toggle plate 19, a third triangular toggle plate 20, a limiting plate 21, a pipe column eye plate 22, a second triangular toggle plate 23, a steel pier guide wheel 24 and a lower middle transition pulley 25.
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. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment provides a method for hoisting and docking a ring-shaped total section of a fishery scientific investigation ship, which comprises the following steps:
step one, a plane supporting steel pier 9 and an inclined plane supporting steel pier 8 are arranged, the plane supporting steel pier 9 is arranged in the middle of the bottom of a ship, two wedge-shaped wood piers are arranged on the plane supporting steel pier 9, one side of each wedge-shaped wood pier is an inclined plane, the other side of each wedge-shaped wood pier is a plane, the inclined planes are in contact with the inclined planes when the wedge-shaped wood piers are placed, and the stacking height of the wedge-shaped wood piers can be. The height of plane support steel mound 9 is 2000mm, and the top of plane support steel mound 9 is 800mm 600 mm's horizontal bearing surface, and one side that plane support steel mound 9 deviates from the hull is provided with direction spout 17, and when direction spout 17 was used for the hoist and mount total section, annular suspender 6 passed spacing and born the atress when annular suspender 6 hoisted, and direction spout 17 adopts cast steel material to make and forms, and direction spout 17 all is provided with the chamfer all around. Because the guide chute 17 is positioned in the middle of the block when the block is lifted, and bears most of the lifting force, the steel casting material can effectively prevent stress deformation, and the chamfers are arranged around the guide chute 17 to effectively prevent the annular hanging strip 6 from being damaged when penetrating. The inclined plane support steel piers 8 are arranged at bilge parts at the bottom of the ship and located on two sides of the plane support steel piers 9, and 12 inclined plane support steel piers 8 and 12 inclined plane support steel piers 9 are arranged along the direction of the ship length.
The upper surface of inclined plane support steel mound 8 is one and is the inclined plane at 20 degrees oblique angles with the horizontal basal plane, the height of inclined plane support steel mound 8 is 2500mm, the support inclined plane of inclined plane support steel mound 8 is 800mm 600mm, be provided with two wedge blocks on the inclined plane, the upper and lower two sides of two wedge blocks all are the inclined plane, can play angle and high adjustment along the width direction adjustment of ship through the wedge lumber skid when putting, one side that inclined plane support steel mound 8 deviates from the hull is provided with steel mound guide pulley 24. The steel pier guide wheel 24 comprises a guide wheel mounting surface 16, a connecting seat plate 13, a guide wheel bracket 12, a connecting bolt, a fixing nut 14 and a guide wheel roller wheel 11, wherein the guide wheel mounting surface 16 is welded on the inclined surface supporting steel pier 8, the connecting seat plate 13 is welded on the guide wheel mounting surface 16, the connecting bolt is welded on the connecting seat plate 13, one section of the connecting bolt close to the connecting seat plate 13 is a non-threaded section, the guide wheel bracket 12 is a U-shaped frame, one closed end of the guide wheel bracket is provided with a mounting hole for the connecting bolt to pass through, the connecting bolt passes through the mounting hole, a fixing gasket 15 is placed firstly, then the connecting bolt is fastened through the fixing nut 14, the shaft of the guide wheel roller wheel 11 is mounted on one side of the opening of the guide wheel bracket 12, the radius of the guide wheel roller wheel 11 is 150.
And step two, connecting the plane support steel pier 9 arranged along the ship length direction and the inclined plane support steel pier 8 arranged along the ship length direction through support pipe columns 7 respectively, connecting the plane support steel pier 9 and the inclined plane support steel pier 8 on the same cross section through the support pipe columns 7, and forming a pulley hoisting group by the plane support steel pier 9 and the inclined plane support steel pier 8 on the same cross section. The support tubular column 7 is a circular pipe with the diameter of 236mm, the wall thickness of the circular pipe is 8mm, the end part of the support tubular column 7 is provided with a tubular column eye plate 22, the height of the tubular column eye plate 22 is 210mm, and the thickness of the tubular column eye plate 22 is 20 mm. The fixed eye plate 18 is arranged on the side surfaces of the plane support steel pier 9 and the inclined plane support steel pier 8, the support steel piers are arranged along the direction of the ship length and the ship width, and the specifications of the fixed eye plate 18 and the pipe column eye plate 22 are the same. The fixed eye plate 18 is welded with a first triangular toggle plate 19 with the thickness of 8mm, the pipe column eye plate 22 is provided with a second triangular toggle plate 23, the thickness of the second triangular toggle plate 23 is 8mm, and the pipe column eye plate 22 is connected with the fixed eye plate 18 through bolts. Fixed eye plate 18, the downside of tubular column eye plate 22 is provided with limiting plate 21, limiting plate 21 and plane support steel mound 9, the welding has third triangle bracket 20 between the inclined plane support steel mound 8, limiting plate 21's length is 350mm, the width is 250mm, thickness is 12mm, limiting plate 21 can guarantee to support tubular column 7 and can not produce the reversal rotation because of the atress when lifting by crane and lead to the steel mound to topple, limiting plate 21 can conveniently support the installation of tubular column 7 in addition, be convenient for carry out fixed connection by the round hole on fixed eye plate 18 and the pipe eye plate.
And step three, selecting two 700T gantry cranes for combined hoisting, wherein each gantry crane comprises two upper trolleys and one lower trolley, the two upper trolleys are combined by adopting a 350T combined hook hoisting row 1, and form a left main hook and a right main hook together with a main hook of the lower trolley. The two gantry cranes are arranged in opposite directions, the two 700T gantry cranes have 4 hoisting points by the method, and relative to a total section to be hoisted, each side surface is provided with two main hook hoisting points, and the left side and the right side of each main hook hoisting point are symmetrical. The lower trolley and a fishhook at the lower end of the parallel hook hanging row 1 are respectively connected with a 350T self-balancing hanging row 2, the lower end of the self-balancing hanging row 2 is provided with four lower fixed pulleys 3, the four lower fixed pulleys 3 are connected in series through a lower transition steel wire rope 4 with a 50m long end sleeve, three annular hanging points are formed on the lower transition steel wire rope 4, an upper middle transition pulley 5 is arranged in each annular hanging point, and the three upper middle transition pulleys 5 are respectively connected with a lower middle transition pulley 25.
Step four, hanging strip guide wheels 10 are arranged on two sides of the ship body, the structures of the hanging strip guide wheels 10 are the same as those of the steel pier guide wheels 24, each lower transition pulley is connected with an adjacent pulley hoisting group through an annular hanging strip 6, and the annular hanging strips 6 sequentially penetrate through the hanging strip guide wheels 10, the steel pier guide wheels 24 and the guide sliding grooves 17.
And step five, gradually tightening the transition steel wire rope and the annular hanging strip 6 by the lower trolley and the fishhook of the parallel hook hanging row 1, and hanging the annular total section in place. Before hoisting, the positions of the annular hanging strip 6, the steel pier guide wheel 24, the hanging strip guide wheel 10 and the guide chute 17 are checked, after the checking is finished, the block is hoisted, after the block is hoisted, hoisting is stopped when the block is 100mm away from the ground, and hoisting is continued after the hoisting state tends to be stable.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (8)
1. A method for hoisting and docking a ring-shaped main section of a fishery scientific investigation ship is characterized by comprising the following steps:
the method comprises the steps that firstly, a plane support steel pier and an inclined plane support steel pier are arranged, the plane support steel pier is arranged in the middle of a ship bottom, the inclined plane support steel piers are arranged at the bilge part of the ship bottom and located on two sides of the plane support steel pier, the plane support steel piers and the inclined plane support steel piers are arranged in the direction of the ship length, a guide chute is arranged on one side, away from a ship body, of the plane support steel pier, and a steel pier guide wheel is arranged on one side, away from the ship body, of the inclined plane support steel pier;
secondly, connecting a plane support steel pier arranged along the ship length direction and an inclined plane support steel pier arranged along the ship length direction through support pipe columns respectively, connecting the plane support steel pier and the inclined plane support steel pier on the same cross section through the support pipe columns, and forming a pulley hoisting group by the plane support steel pier and the inclined plane support steel pier on the same cross section;
selecting two gantry cranes for combined hoisting, wherein each gantry crane comprises two upper trolleys and a lower trolley, the two upper trolleys are hung and hooked through a parallel hook hanging row, the upper trolleys and the lower trolleys are positioned on two sides of a ship body, the lower trolley and a fishhook at the lower end of the parallel hook hanging row are respectively connected with a self-balancing hanging row, the lower end of the self-balancing hanging row is provided with four lower fixed pulleys, the four lower fixed pulleys are connected in series through lower transition steel wire ropes, three annular hanging points are formed on the lower transition steel wire ropes, upper middle transition pulleys are arranged in the three annular hanging points, and the three upper middle transition pulleys are respectively connected with lower middle transition pulleys;
step four, each lower transition pulley is connected with an adjacent pulley hoisting group through an annular hanging strip, and the annular hanging strips sequentially penetrate through a steel pier guide wheel and a guide chute of the pulley hoisting group;
and step five, gradually tightening the transition steel wire rope and the annular hanging strip by the lower trolley and the fishhooks of the parallel hanging row, and hoisting the annular total section in place.
2. The method for hoisting and docking the ring-shaped total section of the fishery scientific investigation ship according to claim 1, in the first step, the guide chute is made of cast steel material, chamfers are arranged on the periphery of the guide chute, the steel pier guide wheel comprises a guide wheel mounting surface, a connecting seat plate, a guide wheel bracket, a connecting bolt, a fixing nut and a guide wheel roller wheel, the guide wheel mounting surface is welded on the inclined plane supporting steel pier, the connecting seat plate is welded on the guide wheel mounting surface, the connecting bolt is welded on the connecting seat plate, a section of the connecting bolt close to the connecting seat plate is a non-threaded section, the guide wheel bracket is a U-shaped frame, the closed end of the guide wheel support is provided with a mounting hole for the connecting bolt to pass through, the connecting bolt passes through the mounting hole and then is fastened through a fixing nut, and the guide wheel roller shaft is mounted on one side of the opening of the guide wheel support.
3. The method for hoisting and docking the annular total section of the fishery scientific investigation ship according to claim 1, wherein fixing eye plates are welded on the side surfaces of the planar support steel pier and the inclined support steel pier, a pipe column eye plate is arranged at the end part of a support pipe column, and the fixing eye plates are connected with the pipe column eye plates through bolts.
4. The method for hoisting and docking the annular block of the fishery scientific investigation ship according to claim 3, wherein a first triangular bracket is welded on the fixed eye plate, a second triangular bracket is welded on the tubular column eye plate, a limiting plate is arranged on the lower side of the fixed eye plate and the tubular column eye plate, and a third triangular bracket is welded between the limiting plate and the plane support steel pier and between the limiting plate and the inclined plane support steel pier.
5. The method for hoisting and docking the ring-shaped total section of the fishery scientific investigation ship according to claim 1, wherein in the third step, the hoisting weight of the gantry crane is 700T, and the two gantry cranes are arranged in opposite directions.
6. The method for hoisting and docking the annular block of the fishery scientific investigation ship according to claim 1, wherein in the fourth step, the two sides of the ship body are provided with sling guide wheels, and the annular sling passes through the sling guide wheels, the steel pier guide wheels and the guide sliding groove in sequence.
7. The method for hoisting and docking the annular block of the fishery scientific investigation ship according to the claim 1, wherein in the fifth step, before hoisting, the positions of the annular hanging strip, the steel pier guide wheel, the hanging strip guide wheel and the guide sliding groove are checked, after the check, the block is hoisted, after the block is hoisted, the hoisting is stopped when the block is 100mm away from the ground, and after the hoisting state tends to be stable, the hoisting is continued.
8. The method for hoisting and docking the ring-shaped total section of the fishery scientific investigation ship according to claim 1, wherein skids are arranged between the plane support steel pier, the inclined plane support steel pier and the ship body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011013191.7A CN112319725B (en) | 2020-09-24 | 2020-09-24 | Method for hoisting and docking annular main section of fishery scientific investigation ship |
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| CN202011013191.7A CN112319725B (en) | 2020-09-24 | 2020-09-24 | Method for hoisting and docking annular main section of fishery scientific investigation ship |
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| CN112319725B CN112319725B (en) | 2023-02-14 |
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| CN113715994A (en) * | 2021-09-27 | 2021-11-30 | 沪东中华造船(集团)有限公司 | In-situ transverse moving floating device and method for ship tail fin structure |
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| CN112319725B (en) | 2023-02-14 |
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