A ship launching support system

Abstract

The present application provides a support system for moving and launching a ship, which is located between the slipway and the hull and consists of a plurality of beams, pulleys and docks. A plurality of beams are arranged at intervals at the bottom of the hull along the length direction of the hull. The pulleys are located below the beams and are used to provide support for the beams to support the hull. The docks are located at preset positions on the slipway. The pulleys and the slipway are connected in a sliding manner. The use of a plurality of pulleys to jointly carry the hull can drive the hull to move in a directional manner on the slipway, thereby realizing the process of moving the hull. After the hull is moved to the preset position of the slipway, the dock is used to replace the pulleys and abut against the beams, which can provide bottom support for the hull and realize the process of the hull sitting on the dock.

Description

Technical Field

[0001] The present application relates to the technical field related to shipbuilding, and in particular to a ship moving and launching support system. Background Art

[0002] During the shipbuilding process, there are many ways to launch ships according to different shipyards and different ship types. The commonly used simple and safe launching method for ships built in docks is dock launching. However, for ships with large line load weight, the entire launching process includes four steps in sequence: ship moving, pier sitting, critical floating and full floating out of the dock.

[0003] However, during the launching of a ship, there is a risk that the local strength of the dock and the hull structure may exceed the standard. Therefore, it is necessary to ensure the safety of the hull structure and the strength of the dock throughout the entire process. In particular, during the process of the ship moving itself to the docking state, a launching support system needs to be installed at the bottom of the hull to reduce the safety risks during the launching process and avoid deformation of the bottom surface structure of the ship or serious damage to the ship structure.

[0004] Therefore, how to provide a ship moving and launching support system that can greatly ensure the safety of the ship structure during the process from moving the ship to landing has become an urgent problem to be solved in this field. Summary of the Invention

[0005] The purpose of this application is to provide a ship moving and launching support system, which can greatly ensure the safety of the ship structure during the process of moving the ship to the pier.

[0006] In a first aspect, an embodiment of the present application provides a ship moving and launching support system, comprising a slipway and a hull, wherein the hull is located on the slipway, and the support system is located between the slipway and the hull, specifically comprising:

[0007] a crossbeam disposed at the bottom of the hull, wherein a plurality of the crossbeams are sequentially spaced along a first direction, and each of the crossbeams is disposed along a second direction, wherein the first direction is perpendicular to the second direction;

[0008] A pulley is located below the crossbeam; the bottom of the pulley is slidably connected to the slipway, and the top of the pulley can abut against the crossbeam, and a plurality of the pulleys can jointly carry the hull to move to a preset position set on the slipway;

[0009] The dock is located at a preset position of the slipway and is staggered with the moving path of the pulley. The dock is configured to replace the pulley and abut against the bottom of the beam when the pulley carries the hull for sitting, thereby providing bottom support for the hull.

[0010] In a possible embodiment, the support system further includes a support pad, which is arranged at the intersection of the transverse strong block and the longitudinal strong block of the beam, corresponds to the abutment position of the pulley at the bottom of the beam, and contacts the bottom of the hull.

[0011] In a possible embodiment, the dock pier includes side piers and middle piers, a plurality of the middle piers are spaced apart along a first direction, the side piers are symmetrically arranged on both sides of the middle pier along a second direction, and during the docking process, each of the middle piers corresponds to the center position of each of the beams.

[0012] In a possible implementation manner, a slide rail is provided on the slipway, and the pulley is slidably connected to the slipway via the slide rail.

[0013] In a possible embodiment, the hull includes three partitions along the first direction, namely the stern area, the cargo hold area and the bow area, and the setting position of the crossbeam corresponds to the setting position of the transverse strong blocks in the stern area, the cargo hold area and the bow area.

[0014] In a possible embodiment, the support system further includes a support bracket, which is arranged in the stern area and / or the bow area, with a bottom portion thereof located on the crossbeam and a top portion thereof abutting against the outer shell of the hull.

[0015] In a possible embodiment, the supporting bracket includes a box portion and a bracket portion, the top end of the bracket portion is adapted to the shape of the hull, and the box portion is used to support the bracket portion.

[0016] In a possible implementation manner, the bracket portion is composed of a plurality of metal tubes, and the metal tubes at the contact portion between the bracket portion and the hull are coated with rubber.

[0017] In a possible embodiment, a plurality of groups of channel steels are further included, each group of the channel steels has two channel steels, and the channel steels are symmetrically arranged at both ends of the beam, and each of the channel steels is arranged along the first direction to connect the plurality of beams.

[0018] In a possible implementation manner, the number of channel steels connected to the crossbeam in each group is 2N+1, and N≥1.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] The present application provides a support system for moving and launching a ship, which is located between the slipway and the hull and consists of a plurality of beams, pulleys and docks. A plurality of beams are arranged at intervals at the bottom of the hull along the length direction of the hull. The pulleys are located below the beams and are used to provide support for the beams to support the hull. The docks are located at preset positions on the slipway. The pulleys and the slipway are connected in a sliding manner. The use of a plurality of pulleys to jointly carry the hull can drive the hull to move in a directional manner on the slipway, thereby realizing the process of moving the hull. After the hull is moved to the preset position of the slipway, the dock is used to replace the pulleys and abut against the beams, which can provide bottom support for the hull and realize the process of the hull sitting on the dock.

[0021] The present application provides a support system for moving and launching a ship, which also includes multiple groups of channel steels connecting the two ends of multiple adjacent beams, which can differentiate the gravity of the beams on some areas of the hull, improve the safety of the hull structure during the ship moving and piering process, and avoid damage to the hull structure due to uneven gravity distribution of the hull or excessive concentration of gravity in some areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 The figure is a structural diagram of a ship moving and launching support system according to an embodiment of the present application.

[0024] Figure 2 Based on Figure 1 Schematic diagram of the cross-sectional structure of the ship launching support system intercepted by the AA interception line.

[0025] Figure 3 The figure is a schematic diagram of the cross-sectional deformation area of the contact surface between a support pad and a hull according to the prior art.

[0026] Figure 4 Schematic diagram of the cross-sectional deformation area of the contact surface between a support pad and a hull according to an embodiment of the present application.

[0027] Figure 5 Based on Figure 1 Schematic diagram of the cross-sectional structure of the ship launching support system taken along the middle BB interception line.

[0028] Figure 6 A schematic diagram of a simulation of a concentrated area of hull weight distribution according to an embodiment of the present application is shown.

[0029] Illustration:

[0030] 1. Slipway; 2. Hull; 21. Transverse stop; 22. Longitudinal stop; 3. Transverse beam; 4. Pulley; 5. Slide rail; 6. Dock pier; 61. Middle pier, 62. Side pier; 7. Support pad; 8. Support bracket; 81. Box section; 82. Bracket section; 9. Channel steel; Ⅰ. Stern area; Ⅱ. Cargo hold area; Ⅲ. Bow area. DETAILED DESCRIPTION

[0031] The following describes the implementation of the present application through specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present application from the disclosure herein. The present application may also be implemented or operated through various other specific implementations, and the details of the present application may be modified or altered based on different viewpoints and applications without departing from the spirit of the present application.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first" and "second" are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] The existing ship moving and launching process usually includes the following steps: first, using a pulley to carry the hull and move the hull to a preset position on the slipway (i.e., the pontoon positioning point); second, the pier seating process is carried out by controlling the pulley to sink together until the bottom of the hull contacts the dock pier, then the pulley is withdrawn and the slide rail is removed; then, water is poured into the dock and the pontoon is loaded until the pontoon carrying the hull floats; then, the floating pontoon is towed to the top of the deep-water dock, and after positioning, the water is discharged outside the dock until the pontoon carrying the hull sinks to the bottom of the dock; finally, the sea valve is opened and water is poured into the dock to float the hull.

[0034] However, the process of moving the ship's hull to the pontoon positioning point on the slipway, which carries the highest structural safety risk during the entire ship launching process, is the step with the highest structural safety risk. If the ship launching support system is not properly arranged, it can cause deformation of the hull's bottom surface structure at best, and serious damage to the hull structure at worst. Based on the above analysis, this application provides a ship launching support system to better ensure the safety of the ship's structure during the process of moving the ship to the pier, which is described in detail below.

[0035] According to one aspect of the present application, a ship launching support system is provided. Figure 1 and Figure 2, including slipway 1 and hull 2. Figure 1 The support system is located between the slipway 1 and the bottom of the hull 2, and is composed of multiple beams 3, pulleys 4 and dock piers 6.

[0036] The crossbeam 3 is arranged at the bottom of the hull 2. There can be multiple crossbeams 3, which are arranged in sequence along the first direction. Each crossbeam 3 is in the shape of a long strip, and the opposite ends are arranged along the second direction, wherein 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.

[0037] The pulley 4 is located below the crossbeam 3. Its bottom is slidably connected to the slide rail 5 provided on the slipway 1, and its top can abut against the crossbeam 3, thereby providing bottom support for the displacement of the hull 2 located on the crossbeam 3. At the same time, multiple pulleys 4 jointly support the hull 2 to slide in a predetermined direction until it moves to the pontoon positioning point provided on the slipway 1, thus completing the process of moving the hull 2.

[0038] The docks 6 are located on the slipway 1, staggered with the movement path of the pulley 4, and are arranged corresponding to the buoyancy positioning points on the slipway 1. After the pulley 4 carries the hull 2 to the preset position on the slipway 1, the multiple docks 6 can replace the pulley 4 and abut against the bottom of the beam 3, thereby providing bottom support for the hull 2, that is, realizing the process of the hull 2 being docked.

[0039] See also Figure 2 In one embodiment, the support system further includes a support pad 7, preferably made of wood, disposed between the crossbeam 3 and the hull 2. The support pad 7, in contact with the bottom of the hull 2, acts as a buffer between the crossbeam 3 and the hull 2, thereby preventing large-scale deformation of the bottom of the hull 2 caused by rigid contact between the crossbeam 3 and the bottom of the hull 2.

[0040] Preferably, the support pad 7 is arranged at the intersection of the transverse strong block 21 and the longitudinal strong block 22 at the bottom of the hull 2, and corresponds to the abutment position of the pulley 4 at the bottom of the beam 3. Figure 3 The support pad 7 on the beam 3 is not required to be arranged on the longitudinal strong block 22, but only on the transverse strong block 21. However, if the support pad 7 is only located at the transverse strong block 21, the contact surface between the bottom plate and the support pad 7 may be concave in the direction parallel to the transverse strong block 21, thereby causing local deformation of the bottom plate. Figure 4 If the support pad 7 is arranged at the "cross strong bar", that is, the intersection of the transverse strong bar 21 and the longitudinal strong bar 22, the deformation area of the bottom plate can only appear in the corner area close to the contact surface between the support pad 7 and the bottom plate, thereby greatly reducing the area of the deformation area.

[0041] In another embodiment, if a support pad 7 that has been used repeatedly for many years and is at risk of aging and failure is used, it can be fully spread over the crossbeam 3, and the support pads 7 can be fixed to each other to improve the cushioning effect of the support pad 7 and reduce the area of the bottom deformation area of the bottom plate.

[0042] See also Figure 1 and Figure 2 In one embodiment, the dock 6 includes side piers 62 and a central pier 61. Multiple central piers 61 are spaced apart along a first direction on the central axis of the hull 2 along the first direction. Multiple side piers 62 are also spaced apart along the first direction and symmetrically positioned on either side of the central pier 61. During docking, each central pier 61 corresponds to the center of each crossbeam 3, while the side piers 62 are located on either side of the corresponding central pier 61. This ensures that the support force exerted by the dock 6 on the bottom of the hull 2 is symmetrical in the second direction, thereby increasing the stability of the hull 2 during docking.

[0043] In one embodiment, the hull 2 includes three partitions along the first direction, namely the stern area I, the cargo hold area II and the bow area III. The setting position of the crossbeam 3 corresponds to the setting position of the transverse strong block 21 of the stern area I, the cargo hold area II and the bow area III. That is to say, each crossbeam 3 needs to be set above the transverse strong block 21 to ensure the stability of the hull 2 structure during the ship moving process and the pier sitting process.

[0044] Preferably, the dimensions, weight, and other specifications of the crossbeam 3, as well as its location on the hull 2, can be flexibly configured based on the weight distribution and zoning of the hull 2. For example, in this embodiment, cargo hold area II, which is the area where the weight of the hull 2 is concentrated, requires a crossbeam 3 to be installed on all transverse struts 21 in the corresponding area. In contrast, solid floors are installed at each rib position in the stern area I and bow area III. In other words, a crossbeam 3 can be installed at each rib position in the stern area I and bow area III.

[0045] Preferably, for a ship with the upper engine room arranged in the stern area I, the setting gap of the cross beam 3 in the stern area I can be slightly smaller, preferably a cross beam 3 is set every 2 to 3 rib positions; the setting gap of the cross beam 3 in the bow area III can be larger than that in the stern area I, preferably a cross beam 3 is set every 3 to 4 rib positions.

[0046] See also Figure 5In one embodiment, the support system further includes support brackets 8 disposed in the stern section I and / or bow section III to ensure the structural safety of the hull 2 in the stern section I and / or bow section III during maneuvering and docking. Due to the irregular hull shape of the hull 2 in the stern section I and / or bow section III, only the bottom center of the hull 2 contacts the support pads 7 disposed on the crossbeam 3, while the hull 2 outside the bottom center is suspended between the crossbeam 3 and the hull 2. The support brackets 8, with their bottoms disposed on the crossbeam 3 and their tops abutting the hull 2, provide support for the hull 2 in the stern section I and / or bow section III, thereby preventing structural damage to the hull 2 in the stern section I and / or bow section III due to lack of support during maneuvering and docking. It should be noted that the support bracket 8 can be in various forms, and this application does not impose any specific restrictions here, as long as the strength of the support bracket 8 meets the requirements and will not be damaged during the process of moving the ship and sitting on the pier.

[0047] Preferably, the supporting 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 outer shell of the hull 2 for supporting the bracket portion 82 .

[0048] Preferably, the bracket portion 82 is generally composed of multiple metal tubes of a steel structure. In order to fit the line shape of the hull 2, the metal tubes of the bracket portion 82 in contact with the hull 2 need to be set according to the line shape of the hull 2, and this part of the metal tube is covered with rubber.

[0049] In one embodiment, the support system further includes multiple sets of channel steels 9, each set of two channel steels 9 symmetrically positioned at each end of the beam 3. Each channel steel 9 is arranged along a first direction to connect the multiple beams 3, thereby preventing structural damage to the hull 2 due to uneven distribution of gravity on the hull 2. Using a single set of channel steels 9 to simultaneously connect the ends of multiple beams 3 distributes the gravity of the beams 3 on certain areas of the hull 2, thereby improving the safety of the hull 2 during ship movement and docking.

[0050] Generally, the first force F (i.e., the lifting force exerted by the pulley 4 on the beam 3) of the hull 2 in a balanced state should theoretically be equal to the second force T (i.e., the pressure exerted by the hull 2 on the beam 3). However, the actual distribution of gravity on the hull 2 is extremely uneven. For areas where gravity is relatively concentrated, when the first force is significantly smaller than the second force, the bottom of the hull 2 may be deformed or the structure may be damaged. For example, see Figure 6In this embodiment, if the hull 2 experiences an abnormally concentrated gravity in the area between rib positions 130 and 150, the second force T1 on the corresponding beam 3 closest to the area of abnormally concentrated gravity may exceed the first force F1, causing bottom deformation or structural damage to the hull 2. A set of channel steels 9 is used to rigidly connect the corresponding beam 3 to the ends of two adjacent beams 3 in the first direction. The first force F3 and the second force T3 of the three beams 3 are calculated, and the first force F3 and the second force T3 satisfy T3 ≤ K × F3. If T3 > K × F3, it is necessary to rigidly connect two or more adjacent beams 3 in the front and back of the beam 3 and recalculate the first force T and the second force F of the entire group to satisfy T ≤ K × F. In other words, for the beams 3 corresponding to the area of abnormally concentrated gravity, each set of channel steels 9 connects 2N + 1 beams 3, where N is a natural number greater than or equal to 1.

[0051] It should be noted that the aforementioned K represents a safety factor, and its value range must satisfy K ≥ 1.2. Since the calculations above are based on static conditions, rather than the movement of the ship with tackle 4, and the center of gravity of the empty ship is estimated, there is inevitably a certain difference between the estimated value and the actual value. Therefore, the safety factor K is set to a value greater than or equal to 1.2. Furthermore, the range of the safety factor K can be appropriately adjusted based on the type of hull 2 structure, i.e., the risk factor.

[0052] The present application provides a support system for moving and launching a ship, which is located between the slipway 1 and the hull 2 and consists of a plurality of beams 3, pulleys 4 and docks 6. A plurality of beams 3 are arranged at intervals at the bottom of the hull 2 along the length direction of the hull 2. The pulleys 4 are located below the beams 3 and are used to provide support for the beams 3 to carry the hull 2. The docks 6 are located at preset positions on the slipway 1. The pulleys 4 and the slipway 1 are connected in a sliding manner. The use of a plurality of pulleys 4 to jointly carry the hull 2 can drive the hull 2 to move in a directional manner on the slipway 1, thereby realizing the process of moving the hull 2. After the hull 2 is moved to the preset position of the slipway 1, the dock 6 is used to replace the pulleys 4 and abut against the beams 3, which can provide bottom support for the hull 2 and realize the process of the hull 2 sitting on the dock.

[0053] The present application provides a support system for moving and launching a ship, which also includes multiple groups of channel steels 9 connecting the two ends of multiple adjacent beams 3, which can differentiate the gravity of the beams 3 on part of the hull 2, improve the safety of the hull 2 structure during the ship moving and piering process, and avoid damage to the hull 2 structure due to uneven distribution of gravity on the hull 2 or excessive concentration of gravity in some areas.

[0054] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present application. These improvements and replacements should also be regarded as the scope of protection of the present application.

Claims

1. A ship launching support system, comprising a slipway and a hull, wherein the hull is located on the slipway, characterized in that: The support system is located between the berth and the hull, and includes: a crossbeam disposed at the bottom of the hull, wherein a plurality of the crossbeams are sequentially spaced along a first direction, and each of the crossbeams is disposed along a second direction, wherein the first direction is perpendicular to the second direction; A pulley is located below the crossbeam; the bottom of the pulley is slidably connected to the slipway, and the top of the pulley can abut against the crossbeam, and a plurality of the pulleys can jointly carry the hull to move to a preset position set on the slipway; a docking pier located at a preset position of the slipway and staggered with the moving path of the pulley, the docking pier being configured to replace the pulley and abut against the bottom of the crossbeam when the pulley carries the hull for docking, thereby providing bottom support for the hull; A support pad is provided at the intersection of the transverse strong block and the longitudinal strong block of the beam, corresponds to the abutment position of the pulley at the bottom of the beam, and contacts the bottom of the hull.

2. The ship moving and launching support system according to claim 1, characterized in that: The dock piers include side piers and middle piers, multiple middle piers are spaced apart along a first direction, and the side piers are symmetrically arranged on both sides of the middle pier along a second direction. During the docking process, each middle pier corresponds to the center position of each beam.

3. The ship moving and launching support system according to claim 1, characterized in that: The slipway is provided with a slide rail, and the pulley is slidably connected to the slipway via the slide rail.

4. The ship moving and launching support system according to claim 1, characterized in that: The hull includes three partitions, namely, a stern area, a cargo hold area, and a bow area, in sequence along a first direction. The arrangement position of the crossbeam corresponds to the arrangement position of the transverse strong supports in the stern area, the cargo hold area, and the bow area.

5. The ship moving and launching support system according to claim 4, characterized in that: It also includes a supporting bracket, which is arranged in the stern area and / or the bow area, with a bottom located on the crossbeam and a top abutting against the outer shell of the hull.

6. The ship moving and launching support system according to claim 5, characterized in that: The supporting bracket includes a box portion and a bracket portion. The top end of the bracket portion is adapted to the shape of the hull, and the box portion is used to support the bracket portion.

7. The ship moving and launching support system according to claim 6, characterized in that: The bracket part is composed of a plurality of metal tubes, and the metal tubes at the contact portion between the bracket part and the hull are covered with rubber.

8. The ship moving and launching support system according to claim 1, characterized in that: It also includes multiple groups of channel steels, each group of channel steels has two channel steels, and they are symmetrically arranged at both ends of the beam. Each channel steel is arranged along the first direction to connect multiple beams.

9. The ship moving and launching support system according to claim 8, characterized in that: The number of channel steels connected to the beam in each group is 2N+1, and N≥1.

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