Container ship ground assembly method

Abstract

The present invention discloses a method for ground assembly of a container ship, comprising two bottom sections and two transverse bulkheads, with cargo box guide rails disposed on the transverse bulkheads. The method comprises the following steps: Step 100: moving the two bottom sections to the assembly site, aligning and securing the sides of the two bottom sections; Step 200: moving the two transverse bulkheads to the assembly site, securing the bottoms of the two transverse bulkheads to the two bottom sections, forming a ship section, wherein the cargo box guide rails of the two transverse bulkheads are parallel, and a cargo box placement area is disposed between the two transverse bulkheads; Step 300: hoisting a container into the cargo box placement area for testing, and after the testing is complete, hoisting the container out of the cargo box placement area; Step 400: using a gantry crane to move the ship section to a dock. This solution reduces the weight of the ship section, ensuring that the weight of the ship section does not exceed the maximum lifting capacity of the gantry crane, and that the cargo box guide rails on the transverse bulkheads can be used normally, thereby ensuring smooth testing.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and in particular to a ground assembly method for a container ship. Background Art

[0002] Ships are typically built in sections and then assembled. Assembly involves combining the completed sections into a single block. After assembly is complete, the assembly undergoes a container test. After successful testing, the assembly is lifted and transferred using a gantry crane.

[0003] At present, the carrying capacity of ships is often increased by increasing their size. However, this will inevitably increase the weight of the total group, and even make the weight of the total group exceed the maximum lifting capacity of the gantry crane. The traditional total group method cannot meet the construction requirements of new ships. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a container ship ground assembly method, which can ensure the integrity of cargo hold outfitting, does not hinder the progress of container testing operations, and solves the problem of insufficient lifting capacity of gantry cranes.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for ground assembly of a container ship is provided, comprising providing two bottom sections and two transverse bulkheads, wherein the transverse bulkheads are provided with cargo box guide rails, comprising the following steps:

[0007] Step 100: Move the two bottom sections to the assembly site respectively, and align and fix the sides of the two bottom sections;

[0008] Step 200: Move the two transverse bulkheads to the assembly site respectively, fix the bottoms of the two transverse bulkheads to the two bottom segments respectively, and form a ship segment. The cargo container guide rails of the two transverse bulkheads are parallel, and a cargo container placement area is provided between the two transverse bulkheads.

[0009] Step 300: hoisting the container to the cargo container placement area for testing. After the testing is completed, the container is hoisted out of the cargo container placement area;

[0010] Step 400: Use a gantry crane to move the ship section to a dock.

[0011] As a preferred solution of the container ship ground assembly method, two upper sections on the port side, two lower sections on the port side, two upper sections on the starboard side, and two lower sections on the starboard side are provided. Step 100 includes:

[0012] Step 101: fix the two port side lower segments and the two starboard side lower segments to the left and right sides of the two bottom segments respectively to form two pre-assembly segments;

[0013] Step 102: Move the two pre-assembly sections to the assembly site respectively, and align and fix the two pre-assembly sections;

[0014] The step 400 includes:

[0015] Step 401: Use the gantry crane to move the ship section to the dock;

[0016] Step 402: fix the two upper sections on the port side above the two lower sections on the port side, and fix the two upper sections on the starboard side above the two lower sections on the starboard side.

[0017] As a preferred solution for the container ship ground group method,

[0018] Providing a distance-maintaining beam, the step 200 includes:

[0019] Step 201: Move the two transverse bulkheads to the assembly site respectively;

[0020] Step 202: Connecting the two ends of the distance beam to the upper ends of the two transverse bulkheads respectively;

[0021] Step 203: respectively weld the two transverse bulkheads and the two pre-assembly sections together to form the ship assembly section.

[0022] As a preferred solution of the container ship ground assembly method, the step 500 further includes:

[0023] Remove the distance maintaining beam.

[0024] As a preferred solution of the container ship ground assembly method, the step 203 further includes:

[0025] Use auxiliary tools to temporarily fix the transverse bulkhead and the pre-section.

[0026] As a preferred solution of the container ship ground assembly method, the closing gap tolerance between the transverse bulkhead and the pre-assembly section is ±15 mm.

[0027] As a preferred solution for the container ship ground assembly method, two lifting ring groups are provided on the upper surface of the bottom segment, and each lifting ring group includes a plurality of lifting ring bodies, and the lifting ring bodies are used to connect with the hooks of the gantry crane.

[0028] As a preferred solution of the container ship ground assembly method, the two lifting ring groups are respectively adjacent to the port side lower section and the starboard side lower section.

[0029] As a preferred solution of the container ship ground assembly method, the position tolerance between the center line of the transverse bulkhead and the center line of the pre-assembly section is ±3 mm.

[0030] As a preferred solution to the ground assembly method of a container ship, a fixing part is provided on the upper surface of the bottom segment, and the fixing part is used to fix the container. Along the direction perpendicular to the transverse bulkhead, the position tolerance between the center of the fixing part and the cargo box guide rail is ±5 mm, and along the direction parallel to the transverse bulkhead, the position tolerance between the center of the fixing part and the cargo box guide rail is ±3 mm.

[0031] The beneficial effects of the present invention are as follows: by directly fixing the two transverse bulkheads on the two bottom segments, the total number of segments included in the ship section can be reduced, thereby reducing the weight of the ship section, so that the weight of the ship section will not exceed the maximum lifting capacity of the gantry crane, and the cargo box guide rails on the transverse bulkheads can be used normally, ensuring the smooth progress of the container testing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0033] Figure 1 This is a schematic diagram of a ship section according to an embodiment of the present invention.

[0034] Figure 2 The figure is a side view of a ship section according to an embodiment of the present invention.

[0035] Figure 3 Schematic diagram of the ship section and distance beam according to an embodiment of the present invention (the bottom section is not shown).

[0036] Figure 4 Schematic diagram of the transverse bulkhead and bottom sections according to an embodiment of the present invention.

[0037] Figure 5 Schematic diagram of the fixing parts and cargo box guide rails according to an embodiment of the present invention.

[0038] Figure 6 This is a schematic top view of a ship section according to an embodiment of the present invention (the bottom section is not shown).

[0039] In the picture:

[0040] 1. Bottom section; 2. Port side lower section; 3. Starboard side lower section; 4. Transverse bulkhead; 5. Cargo container guide rail; 501. First positioning side; 502. Second positioning side; 6. Fixings; 7. Spacer beam; 8. Cargo container placement area; 9. Lifting ring body. DETAILED DESCRIPTION

[0041] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0043] like Figures 1 to 6 As shown, the present invention provides a container ship ground assembly method, which provides two bottom sections 1 and two transverse bulkheads 4, and the transverse bulkheads 4 are provided with cargo box guide rails 5, including the following steps:

[0044] Step 100: Move the two bottom sections 1 to the assembly site respectively, and align and fix the sides of the two bottom sections 1;

[0045] Step 200: Move the two transverse bulkheads 4 to the assembly site, fix the bottoms of the two transverse bulkheads 4 to the two bottom sections 1, and form a ship assembly section. The cargo box guide rails 5 of the two transverse bulkheads 4 are parallel, and a cargo box placement area 8 is provided between the two transverse bulkheads 4.

[0046] Step 300: hoist the container to the cargo container placement area 8 for testing. After the testing is completed, hoist the container out of the cargo container placement area 8.

[0047] Step 400: Use a gantry crane to move the ship section to the dock.

[0048] By directly fixing the two transverse bulkheads 4 on the two bottom segments 1, the total number of segments included in the ship section can be reduced, thereby reducing the weight of the ship section, so that the weight of the ship section will not exceed the maximum lifting capacity of the gantry crane, and the cargo box guide rails 5 on the transverse bulkheads 4 can be used normally, ensuring the smooth progress of the container testing operation.

[0049] Further, two port side upper sections, two port side lower sections 2, two starboard side upper sections and two starboard side lower sections 3 are provided, and step 100 includes:

[0050] Step 101: fix two port side lower segments 2 and two starboard side lower segments to the left and right sides of the two bottom segments 1 respectively to form two pre-assembly segments;

[0051] Step 102: Move the two pre-assembly sections to the assembly site respectively, and align and fix the two pre-assembly sections;

[0052] Step 400 includes:

[0053] Step 401: Use a gantry crane to move the ship section to the dock;

[0054] Step 402: fix the two upper sections on the port side above the two lower sections 2 on the port side, and fix the two upper sections on the starboard side above the two lower sections 3 on the starboard side.

[0055] By arranging two upper sections on the port side, two lower sections on the port side 2, two upper sections on the starboard side and two lower sections on the starboard side 3, the original port side section and starboard side section are divided into two parts, upper and lower. After the ship section is hoisted to the dock, the upper parts of the port side section and starboard side section are combined and assembled with the ship section. This can not only reduce the weight of the ship section, but also ensure the integrity of the cargo box guide rails 5 on the transverse bulkhead 4, thereby ensuring that the container test operation can be carried out on the ground; dividing the original port side section and starboard side section into two parts, reduces the weight of the ship section and avoids the weight of the ship section exceeding the maximum lifting capacity of the gantry crane. The lower parts of the port side section and starboard side section are retained and can be fixed to the transverse bulkhead 4, so that the cargo box guide rails 5 on the transverse bulkhead 4 can be used normally, thereby ensuring the smooth progress of the container test operation.

[0056] In this embodiment, the container is experimentally hoisted into the cargo box placement area 8, wherein the cargo box guide rails 5 on the transverse bulkhead 4 can provide guidance for the downward movement of the container, and the two ends of the container move under the guidance of the cargo box guide rails 5. The cargo box guide rails 5 are provided with a first positioning side surface 501 and a second positioning side surface 502 at an angle. The first positioning side surface 501 and the second positioning side surface 502 are used to press against the outer surface of the container. Four cargo box guide rails 5 are provided corresponding to each container, and the four cargo box guide rails 5 cooperate with each other to guide the movement of the container; the container is hoisted to the cargo box placement area 8 by a hoisting verification method to check the assembly accuracy of the transverse bulkhead 4 and the pre-assembly section, which is a trial container operation.

[0057] Specifically, providing the distance-maintaining beam 7, step 200 includes:

[0058] Step 201: Move the two transverse bulkheads 4 to the assembly site respectively;

[0059] Step 202: Connect the two ends of the distance beam 7 to the upper ends of the two transverse bulkheads 4 respectively;

[0060] Step 203: respectively weld the two transverse bulkheads 4 and the two pre-assembly sections together to form a ship assembly section.

[0061] In this embodiment, since the port side segment and the starboard side segment are divided into upper and lower parts, the upper end of the transverse bulkhead 4 will protrude from the upper surface of the lower half of the port side segment and the starboard side segment. The provision of the distance beam 7 can assist in positioning the position of the transverse bulkhead 4, avoid forming an angle between the two transverse bulkheads 4, and ensure that the positions of the two are parallel.

[0062] Furthermore, before step 203, the following steps are also included:

[0063] Use auxiliary tools to temporarily fix transverse bulkhead 4 and pre-section.

[0064] By using auxiliary tooling to temporarily fix the transverse bulkhead 4 and the pre-assembly section, the positions of the transverse bulkhead 4 and the pre-assembly section can be easily fine-tuned, thereby ensuring that the transverse bulkhead 4 and the pre-assembly section are aligned and closed.

[0065] Specifically, before step 400, the following steps are also included:

[0066] Remove the distance beam 7 and auxiliary tooling.

[0067] In this embodiment, the distance beam 7 and the auxiliary tooling are not structures of the hull, but only tooling for auxiliary installation of the hull. Removing the distance beam 7 and the auxiliary tooling before lifting the ship section can reduce the weight of the ship section, thereby reducing the lifting difficulty of the gantry crane.

[0068] In this embodiment, the auxiliary tooling is a yard plate.

[0069] In this embodiment, it is necessary to mark the center line of the ground sample at the assembly site as a positioning reference.

[0070] Furthermore, two distance beams 7 are provided, and the two distance beams 7 are arranged at intervals. Since the size of the transverse bulkhead 4 is relatively large, the provision of two distance beams 7 can improve the accuracy of installation.

[0071] Specifically, the clearance tolerance between the transverse bulkhead 4 and the pre-assembly section is ±15 mm. Setting the clearance tolerance between the transverse bulkhead 4 and the pre-assembly section to ±15 mm provides a precision reference for the assembly welding, ensuring assembly accuracy while also improving operational efficiency.

[0072] Furthermore, two lifting ring groups are provided on the upper surface of the bottom section 1. Each group includes multiple lifting ring bodies 9, which are used to connect to the hooks of the gantry crane. Because the port and starboard side sections are divided into two upper and lower parts, the lifting ring bodies 9 cannot be placed on the hatch coaming as in traditional lifting methods. Instead, the lifting ring bodies 9 are placed on the upper surface of the bottom section 11, ensuring the stability of the lifting of the ship section.

[0073] Preferably, the two lifting ring groups are respectively adjacent to the port side lower section 2 and the starboard side lower section 3. Since the cargo container placement area 8 is used to place containers, placing the two lifting ring groups respectively adjacent to the port side lower section 2 and the starboard side lower section 3 can make the lifting ring body 9 and the container form a positional avoidance, preventing the lifting ring body 9 from interfering with the transportation of the container.

[0074] Furthermore, the position tolerance between the centerline of the transverse bulkhead 4 and the centerline of the pre-assembly section is ±3mm. By setting the position tolerance between the centerline of the transverse bulkhead 4 and the centerline of the pre-assembly section to ±3mm, an accuracy reference can be provided for the closing welding, ensuring closing accuracy while also improving work efficiency.

[0075] Furthermore, the upper surface of the bottom segment 1 is provided with a fixing member 6, which is used to secure the container. The positional tolerance between the center of the fixing member 6 and the container guide rail 5 is ±5mm in a direction perpendicular to the transverse bulkhead 4, and ±3mm in a direction parallel to the transverse bulkhead 4. By setting the positional tolerance between the center of the fixing member 6 and the container guide rail 5 to ±5mm in a direction perpendicular to the transverse bulkhead 4 and ±3mm in a direction parallel to the transverse bulkhead 4, a precision reference is provided for the closing welding, ensuring closing accuracy while also improving operational efficiency. In this embodiment, the fixing member 6 is a stacking cone, with four stacking cones provided for each container, each of which is fixed to the four corners of the container.

[0076] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0077] In this specification, reference to terms such as "one embodiment" or "example" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0078] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0079] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A container ship ground assembly method, characterized in that: Providing two bottom sections and two transverse bulkheads, with cargo box rails provided on the transverse bulkheads, comprises the following steps: Step 100: Move the two bottom sections to the assembly site respectively, and align and fix the sides of the two bottom sections; Step 200: Move the two transverse bulkheads to the assembly site respectively, fix the bottoms of the two transverse bulkheads to the two bottom segments respectively, and form a ship segment. The cargo container guide rails of the two transverse bulkheads are parallel, and a cargo container placement area is provided between the two transverse bulkheads. Step 300: hoisting the container to the cargo container placement area for testing. After the testing is completed, the container is hoisted out of the cargo container placement area; Step 400: Use a gantry crane to move the ship section to a dock; Providing two port side upper sections, two port side lower sections, two starboard side upper sections, and two starboard side lower sections, the step 100 includes: Step 101: fix the two port side lower segments and the two starboard side lower segments to the left and right sides of the two bottom segments respectively to form two pre-assembly segments; Step 102: Move the two pre-assembly sections to the assembly site respectively, and align and fix the two pre-assembly sections; The step 400 includes: Step 401: Use the gantry crane to move the ship section to the dock; Step 402: fix the two upper sections on the port side above the two lower sections on the port side, and fix the two upper sections on the starboard side above the two lower sections on the starboard side.

2. The container ship ground assembly method according to claim 1, characterized in that: Providing a distance-maintaining beam, step 200 includes: Step 201: Move the two transverse bulkheads to the assembly site respectively; Step 202: Connecting the two ends of the distance beam to the upper ends of the two transverse bulkheads respectively; Step 203: respectively weld the two transverse bulkheads and the two pre-assembly sections together to form the ship assembly section.

3. The container ship ground assembly method according to claim 2, characterized in that: Before step 400, the following steps are also included: Remove the distance maintaining beam.

4. The container ship ground assembly method according to claim 2, characterized in that: Before step 203, the following steps are also included: Use auxiliary tools to temporarily fix the transverse bulkhead and the pre-section.

5. The container ship ground assembly method according to claim 1, characterized in that: The closing gap tolerance between the transverse bulkhead and the pre-assembly section is ±15mm.

6. The container ship ground assembly method according to claim 1, characterized in that: Two lifting ring groups are provided on the upper surface of the bottom segment. Each lifting ring group includes a plurality of lifting ring bodies. The lifting ring bodies are used to be connected to the hooks of the gantry crane.

7. The container ship ground assembly method according to claim 6, characterized in that: The two lifting ring groups are respectively adjacent to the port side lower section and the starboard side lower section.

8. The container ship ground assembly method according to claim 1, characterized in that: The position tolerance between the center line of the transverse bulkhead and the center line of the pre-section is ±3mm.

9. The container ship ground assembly method according to claim 1, characterized in that: A fixing part is provided on the upper surface of the bottom segment, which is used to fix the container. Along the direction perpendicular to the transverse bulkhead, the position tolerance between the center of the fixing part and the cargo box guide rail is ±5 mm, and along the direction parallel to the transverse bulkhead, the position tolerance between the center of the fixing part and the cargo box guide rail is ±3 mm.

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