CN116062127A

CN116062127A - Ship-moving launching supporting system

Info

Publication number: CN116062127A
Application number: CN202310138022.3A
Authority: CN
Inventors: 张亚; 武姗; 王璐玭; 郑双燕; 李啸峰; 柳一点; 朱岚劼
Original assignee: Jiangnan Shipyard Group Co Ltd
Current assignee: Jiangnan Shipyard Group Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-05-05

Abstract

The application provides a ship moving launching support system, which is positioned between a slipway and a ship body and consists of a plurality of cross beams, pulleys and docking blocks. The plurality of cross beams are arranged at the bottom of the ship body at intervals along the length direction of the ship body, the pulley is positioned below the cross beams and used for providing supporting force for the cross beams to bear the ship body, and the docking block is positioned at a preset position of the slipway. The pulleys are in sliding connection with the slipway, and the ship body can be driven to move on the slipway in a directional manner by utilizing the common carrying ship bodies of the plurality of pulleys, so that the ship moving process of the ship body is realized. After the ship body is moved to the preset position of the slipway, the dock block is utilized to replace the pulley to be abutted against the cross beam, so that the bottom support can be provided for the ship body, and the sitting process of the ship body is realized.

Description

Ship-moving launching supporting system

Technical Field

The application relates to the technical field related to ship construction, in particular to a ship moving launching support system.

Background

In the ship building process, according to different shipyards and different ship types, the ship launching modes are various, and the common simple and safe launching mode of the ship built in the dock is the dock launching, but for the ship with high line load weight, the whole launching process sequentially comprises four processes of ship moving, pier sitting, critical floating and full floating.

However, the risk that the local strength of the docking block and the hull structure exceeds the standard exists in the process of launching the ship, so that the safety of the hull structure and the docking block strength in the whole process needs to be ensured, and particularly, a launching support system needs to be arranged at the bottom of the hull in the process of self-moving the ship to a sitting state so as to reduce the safety risk in the process of launching the ship, and avoid the occurrence of the situation that the surface structure of the bottom of the ship is deformed or the ship structure is seriously damaged.

Therefore, how to provide a ship-moving launching support system, which can greatly ensure the safety of the ship structure in the process of moving the ship to sit on the pier, is a problem to be solved in the field.

Disclosure of Invention

The utility model aims at providing a move ship support system that descends, it can very big guarantee boats and ships from moving the ship to sit the security of mound in-process ship structure.

In a first aspect, embodiments of the present application provide a ship moving launch support system, including a slipway and a hull, the hull being located above the slipway, the support system being located between the slipway and the hull, specifically including:

the cross beams are arranged at the bottom of the ship body, a plurality of cross beams are sequentially arranged at intervals along a first direction, each cross beam is arranged along a second direction, and the first direction is perpendicular to the second direction;

the pulley is positioned below the cross beam; the bottom of the pulley is in sliding connection with the slipway, the top of the pulley can be abutted against the cross beam, and a plurality of pulleys can jointly bear the ship body to move towards a preset position arranged on the slipway;

the docking block is positioned at a preset position of the slipway and is staggered with the moving path of the pulley, and the docking block is configured to replace the pulley to be abutted against the bottom of the cross beam in the process of bearing the ship body by the pulley to sit down, so as to provide bottom support for the ship body.

In one possible embodiment, the support system further comprises a support pad disposed at the intersection of the transverse and longitudinal bars of the beam, corresponding to the abutment position of the trolley at the bottom of the beam, and in contact with the bottom of the hull.

In a possible embodiment, the docking block comprises side blocks and middle blocks, a plurality of the middle blocks are arranged at intervals along a first direction, the side blocks are symmetrically arranged on two sides of the middle blocks along a second direction, and in the process of sitting the blocks, each middle block corresponds to the center position of each cross beam.

In one possible embodiment, the slipway is provided with a rail, through which the trolley is slidingly connected to the slipway.

In a possible embodiment, the hull comprises three sections in the first direction in sequence, a stern section, a cargo hold section and a bow section, the position of the cross beam corresponding to the position of the transverse reinforcement of the stern section, the cargo hold section and the bow section.

In a possible embodiment, the support system further comprises a support bracket arranged in the stern area and/or in the bow area, the bottom of which is located on the cross beam and the top of which abuts against the hull of the hull.

In a possible embodiment, the support bracket comprises a box portion and a bracket portion, the bracket portion top end being adapted to the shape of the hull shell, the box portion being for supporting the bracket portion.

In one possible embodiment, the bracket portion is composed of a plurality of metal pipes, and the metal pipes of the contact portion of the bracket portion with the hull casing are covered with rubber.

In one possible embodiment, the beam further comprises a plurality of groups of channels, each group of channels is two in number and symmetrically arranged at two ends of the beam, and each channel is arranged along a first direction so as to connect a plurality of beams.

In one possible embodiment, the number of connections of each set of said channels to said cross beam is 2N+1, and N.gtoreq.1.

Compared with the prior art, the beneficial effects of the application are at least as follows:

The application provides a move ship support system that descends water, this braced system position still includes the both ends of multiunit channel-section steel with a plurality of adjacent crossbeams in addition and connects, can differentiate the gravity of crossbeam to hull part region, improves the security of moving ship and sitting pier in-process hull structure to play and avoid because the uneven or excessive concentration of gravity in partial region of hull gravity and lead to the impaired effect of hull structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a ship moving launch support system according to an embodiment of the present application.

FIG. 2 is a schematic cross-sectional view of the transfer launch support system taken along line A-A of FIG. 1.

Fig. 3 is a schematic view of a cross-sectional deformation zone of a support pad and hull interface according to the prior art.

Fig. 4 is a schematic view of a cross-sectional deformation area of a contact surface of a support pad and a hull according to an embodiment of the present application.

FIG. 5 is a schematic cross-sectional view of the transfer launch support system taken along line B-B of FIG. 1.

Fig. 6 is a schematic diagram of a simulation of a concentrated area of weight distribution of a hull according to an embodiment of the present application.

Illustration of:

1, a slipway; 2, a ship body; 21 transverse strong gear; 22 longitudinal strong gear; 3, a cross beam; 4 pulleys; 5 sliding rails; 6 dock blocks; 61 middle piers, 62 side piers; 7, a support pad; 8, supporting a bracket; 81 a box body part; 82 a bracket portion; 9 channel steel; i, stern area; II, a cargo hold area; and III, a bow area.

Detailed Description

Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the present application is taken in conjunction with the accompanying drawings. The present application may be carried out or operated in different embodiments, and various modifications or changes may be made in the details of the application based on different points of view and applications without departing from the spirit of the application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. Furthermore, the terms "first" and "second," etc. are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The ship moving and launching process of the existing ship generally comprises the following steps: firstly, carrying a ship body by utilizing a pulley, and moving the ship body to a preset position (namely a buoyancy tank positioning point) of a slipway; secondly, carrying out a pier sitting process, jointly settling through a control pulley until the bottom of the ship body is abutted against a dock pier, withdrawing the pulley, and dismantling the sliding rail; then, water is injected into the dock, and the buoyancy tank is loaded until the buoyancy tank bears the ship body to float; then, the floating buoyancy tank is pulled to the upper part of the deepwater dock, and the positioned floating buoyancy tank is drained outside the dock until the buoyancy tank bearing ship body sits and sinks to the bottom of the dock; and finally, the sea valve is opened, and water is injected into the dock to float the ship body.

However, the process of moving the carrier-carrying vessel hull to the pontoon anchor point of the slipway is the highest structural safety risk step in the whole vessel launching process. If the ship moving launching support system cannot be properly arranged, the ship bottom surface structure is deformed due to light weight, and the ship body structure is seriously damaged due to heavy weight. The application provides a move ship support system that gives off water based on above-mentioned analysis to better guarantee boats and ships are from moving the ship to sitting in-process of mound, the security of boats and ships structure, the following concrete explanation.

According to one aspect of the present application, there is provided a mobile marine launch support system, see fig. 1 and 2, comprising a slipway 1 and a hull 2. Referring to fig. 1, the support system is located between a slipway 1 and the bottom of a ship body 2, and is composed of a plurality of cross beams 3, pulleys 4 and docking blocks 6.

The cross beams 3 are arranged at the bottom of the ship body 2, the number of the cross beams can comprise a plurality of cross beams and are sequentially arranged at intervals along a first direction, each cross beam 3 is in a strip shape, two opposite ends of each cross beam are arranged along a second direction, the first direction is consistent with the direction of the ship length, the second direction is consistent with the direction of the ship width, and the first direction is perpendicular to the second direction.

The pulley 4 is located below the beam 3, the bottom of the pulley is slidably connected with the sliding rail 5 arranged on the slipway 1, and the top of the pulley can be abutted against the beam 3, so that bottom support is provided for the displacement of the ship body 2 above the beam 3. Simultaneously, the plurality of pulleys 4 bear the ship body 2 together and slide along the preset direction until the ship body 2 moves to a buoyancy tank positioning point arranged on the slipway 1, namely, the ship moving process of the ship body 2 is realized.

The docking block 6 is positioned on the slipway 1, is staggered with the moving path of the pulley 4, and corresponds to the position of a buoyancy tank positioning point on the slipway 1. After the carrier 4 carries the hull 2 to move to a preset position on the slipway 1, a plurality of docking blocks 6 can replace the carrier 4 to be abutted with the bottom of the cross beam 3, so that bottom support is provided for the hull 2, and the process of sitting the hull 2 is realized.

Referring to fig. 2, in one embodiment, the support system further comprises a support pad 7, preferably made of wood material, disposed between the transom 3 and the hull 2. Through supporting pad 7 and hull 2's bottom contact, can play the cushioning effect between crossbeam 3 and hull 2, and then avoid crossbeam 3 and hull 2 bottom self-checking's rigid contact and lead to hull 2 bottom to appear large tracts of land deformation.

Preferably, the supporting pad 7 is arranged at the intersection of the transverse reinforcement 21 and the longitudinal reinforcement 22 at the bottom of the hull 2 and corresponds to the abutment position of the trolley 4 at the bottom of the cross beam 3. In general, referring to fig. 3, the support pads 7 on the cross beam 3 are not required to be disposed on the longitudinal strong rail 22, but are only located on the transverse strong rail 21, however, the support pads 7 located only on the transverse strong rail 21 may cause the contact surface of the bottom plate and the support pads 7 to be concave along the direction parallel to the transverse strong rail 21, thereby causing the bottom plate to be locally deformed. On the contrary, referring to fig. 4, if the support pad 7 is disposed at the "cross strong rail", that is, at the intersection of the transverse strong rail 21 and the longitudinal strong rail 22, the deformed region of the bottom plate can be made to appear only at the corner region near the contact surface of the support pad 7 and the bottom plate, thereby greatly reducing the area of the deformed region.

In another embodiment, if the support pad 7 is used repeatedly for several years and has a risk of aging failure, the support pad 7 can be fully paved above the beam 3, and the fixing treatment is performed between the support pad 7 and the support pad 7, so as to improve the buffering effect of the support pad 7 and reduce the area of the bottom deformation area of the bottom plate of the ship.

Referring to fig. 1 and 2, in one embodiment, the docking block 6 includes side piers 62 and middle piers 61, a plurality of middle piers 61 are disposed at intervals along the first direction on the central axis of the hull 2 along the first direction, and a plurality of side piers 62 are also disposed at intervals along the first direction and symmetrically disposed at both sides of the middle piers 61. In the sitting process, each middle pier 61 corresponds to the center position of each cross beam 3, and the side piers 62 are positioned at two sides of the corresponding middle pier 61, so that the supporting forces of the docking block 6 to the bottom of the ship body 2 are mutually symmetrical in the second direction, and the stability of the ship body 2 in the sitting process is improved.

In one embodiment, the hull 2 sequentially includes three sections of the stern area i, the cargo area ii and the bow area iii along the first direction, and the arrangement positions of the beams 3 correspond to the arrangement positions of the transverse strengthening rails 21 of the stern area i, the cargo area ii and the bow area iii, that is, each beam 3 needs to be arranged above the transverse strengthening rails 21 to ensure the stability of the hull 2 structure during the ship moving process and the pier sitting process.

Preferably, the size, the gravity and other specification parameters of the cross beam 3 and the arrangement position on the hull 2 can be flexibly arranged according to the weight distribution and the partition of the hull 2. For example, in the present embodiment, in the cargo compartment ii, which is a concentration area of the gravity of the hull 2, a cross beam 3 is required to be disposed on all the transverse strengthening members 21 of the corresponding area, and solid rib plates are disposed on each rib position in the stern area i and the bow area iii, that is, each rib position in the stern area i and the bow area iii may be disposed with the cross beam 3.

Preferably, for the ship with the cabin built in the stern area I, the setting gap of the cross beam 3 in the stern area I can be slightly smaller, and preferably, one cross beam 3 is arranged at intervals of 2-3 rib positions; the arrangement clearance of the beam 3 in the bow area III can be larger than that in the stern area I, and the beam 3 is preferably arranged at intervals of 3-4 rib positions.

Referring to fig. 5, in one embodiment, the support system further comprises a support bracket 8 provided in the stern area i and/or the bow area iii to secure the structure of the hull 2 in the stern area i and/or the bow area iii during the moving and sitting process. Due to the irregular hull shape structure of the hull 2 in the stern area i and/or the bow area iii, only the bottom center of the hull 2 is in contact with the support pads 7 arranged on the cross beams 3, while the hull 2 outside the bottom center is suspended from the cross beams 3. The bottom of the supporting bracket 8 is arranged on the cross beam 3, the top of the supporting bracket is abutted with the shell of the ship body 2, and the shell of the ship body 2 in the stern area I and/or the bow area III is supported, so that the situation that the whole structure of the ship body 2 in the stern area I and/or the bow area III is damaged due to lack of support in the ship moving and pier sitting processes is avoided. It should be noted that the form of the support bracket 8 may be varied, and the present application is not limited in particular, as long as the strength of the support bracket 8 satisfies the requirement, and the support bracket may not be damaged during the ship moving and the pier sitting.

Preferably, the support bracket 8 includes a box portion 81 and a bracket portion 82, and the top end of the bracket portion 82 is adapted to the shape of the hull 2 housing for supporting the bracket portion 82.

Preferably, the bracket portion 82 is generally comprised of a plurality of metal tubes of steel construction. In order to attach to the line shape of the hull 2, the metal pipe of the contact portion between the bracket 82 and the hull 2 needs to be provided according to the line shape of the hull 2, and the metal pipe is covered with rubber.

In an embodiment, the supporting system further comprises a plurality of groups of channel steels 9, the number of the channel steels 9 in each group is two, the channel steels 9 are symmetrically arranged at two ends of the cross beam 3 respectively, and each channel steel 9 is arranged along the first direction so as to connect the plurality of cross beams 3, and further the situation that the structure of the ship body 2 is damaged due to uneven gravity distribution of the ship body 2 is avoided. And the two ends of the cross beams 3 are connected by a group of channel steel 9, namely, the gravity of the cross beams 3 to the partial area of the ship body 2 can be differentiated, and the safety of the ship body 2 structure in the ship moving and pier sitting process is improved.

In general, the first force F of the hull 2 in equilibrium (i.e. the lifting force of the trolley 4 against the cross beam 3) should be theoretically equal to the second force T (i.e. the pressure of the hull 2 against the cross beam 3), however, the actual gravity distribution of the hull 2 is highly uneven, and for areas where gravity is relatively concentrated, the first force is significantly smaller than the second force, which may lead to deformation of the bottom of the hull 2, or structural damage. For example, referring to fig. 6, in the present embodiment, if the gravity of the hull 2 is abnormally concentrated in the region between the corresponding rib positions 130 to 150, the second acting force T corresponding to the cross member 3 is closest to the gravity abnormally concentrated region ₁ May exceed the first acting force F ₁ Which in turn causes the hull 2 to deform at the bottom, or to be structurally damaged. The first acting force F of the whole of the three beams 3 is calculated by rigidly connecting the corresponding beam 3 with the two ends of the two beams 3 adjacent to each other in the first direction by a group of channel steels 9 ₃ And a second acting force T ₃ And let the first acting force F ₃ And a second acting force T ₃ Satisfy T ₃ ≤K×F ₃ If T ₃ >K×F ₃ It is necessary to rigidly connect two or more beams 3 adjacent to each other in front of and behind the beam 3, and calculate the first acting force T and the second acting force F again as a whole so that T is equal to or less than k×f, that is, for the beam 3 corresponding to the gravity anomaly concentration region, the number of connection of each group of channel steels 9 to the beam 3 is 2n+1, and N is a natural number equal to or greater than 1.

It should be noted that K is a safety factor, and the value removing range needs to satisfy K not less than 1.2. The calculation process is obtained in a static state through finite element analysis, but is not a moving process of the carrier of the pulley 4, and the weight center of gravity of the empty ship is estimated, and a certain gap is necessarily reserved between the weight center of the empty ship and a true value, so that the value of the safety coefficient K is larger than or equal to 1.2. Meanwhile, the value range of the safety coefficient K can be properly adjusted according to the type of the ship body 2 structure, namely the risk coefficient.

The application provides a ship moving launching support system, which is positioned between a slipway 1 and a ship body 2 and consists of a plurality of cross beams 3, pulleys 4 and docking blocks 6. The plurality of cross beams 3 are arranged at the bottom of the ship body 2 at intervals along the length direction of the ship body 2, the pulley 4 is positioned below the cross beams 3 and used for providing supporting force for the cross beams 3 to bear the ship body 2, and the docking block 6 is positioned at a preset position of the slipway 1. The pulleys 4 are in sliding connection with the slipway 1, and the ship body 2 can be driven to move on the slipway 1 in a directional manner by jointly carrying the carrier ship body 2 through the pulleys 4, so that the ship moving process of the ship body 2 is realized. After the ship body 2 is moved to the preset position of the slipway 1, the dock block 6 is utilized to replace the pulley 4 to be abutted against the cross beam 3, so that bottom support can be provided for the ship body 2, and the sitting process of the ship body 2 is realized.

The application provides a move ship support system that descends water, this braced system position still includes the both ends connection of a plurality of adjacent crossbeams 3 of multiunit channel-section steel 9 in addition, can differentiate the gravity of crossbeam 3 to hull 2 partial area, improves the security of moving ship and sitting mound in-process hull 2 structure to play and avoid because hull 2 gravity distribution is uneven or the gravity is excessively concentrated in partial area and lead to the impaired effect of hull 2 structure.

The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered as being within the scope of the present application.

Claims

1. A ship moving launch support system comprising a slipway and a hull, said hull being positioned above said slipway, wherein said support system is positioned between said slipway and said hull, comprising:

2. The ship moving launch support system of claim 1, further comprising a support pad disposed at the intersection of the transverse and longitudinal rails of the cross beam in contact with the bottom of the hull in correspondence with the abutment position of the sled at the bottom of the cross beam.

3. The ship moving and launching support system according to claim 1, wherein the dock block comprises side piers and middle piers, a plurality of the middle piers are arranged at intervals along a first direction, the side piers are symmetrically arranged on two sides of the middle piers along a second direction, and each middle pier corresponds to the center position of each cross beam in the process of sitting on the piers.

4. The ship moving launch support system according to claim 1, wherein a slide rail is provided on the slipway, and the sled is slidably connected to the slipway via the slide rail.

5. The ship moving launch support system according to claim 1, wherein said hull comprises three sections in the first direction in sequence, a stern section, a cargo hold section and a bow section, and the position of said cross member corresponds to the position of the transverse reinforcement of said stern section, cargo hold section and bow section.

6. The ship moving launch support system according to claim 5, further comprising a support bracket provided at said stern area and/or bow area, the bottom of which is located on said cross beam, the top of which abuts against the hull of the ship.

7. The transfer launch support system of claim 6, wherein said support bracket comprises a box portion and a bracket portion, said bracket portion top end being adapted to the shape of said hull shell, said box portion for supporting said bracket portion.

8. The ship moving launch support system according to claim 7, wherein said bracket portion is composed of a plurality of metal pipes, and a contact portion of said bracket portion with said hull casing is covered with rubber outside of the metal pipes.

9. The ship moving launch support system of claim 1, further comprising a plurality of sets of channels, each set of channels being two in number and symmetrically disposed at both ends of said cross beam, each channel being disposed along a first direction to connect a plurality of said cross beams.

10. The ship moving launch support system according to claim 9, wherein the number of connections of each set of said channel steel to said cross beam is 2n+1, and N is equal to or greater than 1.