A method of installing deck bulwark sections

Abstract

The application discloses a deck bulwark segmented installation method, comprising the following steps: dividing the bulwark segments; arranging low-position jigs and high-position jigs; manufacturing a torsion-resistant box segment on the low-position jigs; moving and positioning the bulwark segments to the high-position jigs; and welding and fixing the bulwark segments and the torsion-resistant box segment. The application enables the bulwark segments and the torsion-resistant box segment to be welded and connected when the torsion-resistant box segment is in a lateral position, liberates the dock crane resources, enables high-altitude operation to be low-altitude operation, reduces the difficulty of dock operation, avoids the cross action of the dock, effectively improves the construction efficiency, and improves the precision of the segmented combination.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method for installing deck bulwarks in sections. Background Technology

[0002] During shipbuilding, some ship types incorporate bulwarks at the deck edges of the anti-torsion box sections for piracy protection. These bulwarks are typically installed in the dry dock using gantry cranes, which not only consumes dock crane resources but also increases the difficulty and risk of overlapping dock operations. Existing technologies, in an effort to free up dock crane resources, install bulwark sections in advance during the sectioning stage. For example, Chinese Patent CN116573118 discloses a method for installing bow bulwark sections, which requires flipping the bow section into a reversed form and welding it to the pre-installed bulwark sections. This method is not only complex but also inefficient and inaccurate. Since the anti-torsion box section differs significantly from the bow section structure, the bulwark section installation method disclosed in Chinese Patent CN116573118 is unsuitable for installing deck bulwark sections. Summary of the Invention

[0003] In view of the deficiencies in the prior art, this application provides a method for installing deck bulwarks in sections, so as to solve the technical problems of complex operation, low installation efficiency and low installation accuracy in the existing deck bulwark section installation.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0005] A method for installing deck bulwarks in sections includes the following steps:

[0006] S1 divides the entire ship's bulwark into multiple bulwark sections, ensuring that the bulwark sections on each anti-torsion box section are within the range of the anti-torsion box section.

[0007] S2, Arrange a low-position bracket and a high-position bracket. The high-position bracket is located on one side of the low-position bracket. The height difference between the high-position bracket and the low-position bracket is equal to the distance between the outer side of the bulwark and the outer side of the anti-torsion box when the bulwark is connected to the anti-torsion box. The high-position bracket is used to support the bulwark section, and the low-position bracket is used to support the anti-torsion box section.

[0008] S3, fabricate anti-torsion box segments on the low-positioned tire frame;

[0009] S4, fabricate the bulwark section on the S3 molded anti-torsion box section, and move and position the bulwark section to the high-position jig;

[0010] S5. Weld and fix the bulwark section to the anti-torsion box section to complete the installation of the bulwark section.

[0011] In one implementation, step S1 further includes the following steps:

[0012] S11, based on the location of the box column and the cable guide hole, the entire ship's bulwark is divided into multiple bulwark sections for the first time;

[0013] S12, based on the position of the joint between the anti-torsion box sections, the bulwark sections divided in S11 are further divided into the final bulwark sections, so that the length of each bulwark section does not exceed the length of the anti-torsion box section.

[0014] In one embodiment, the anti-torsion box segment includes a middle plate assembly, an inner shell plate assembly, and a compartment component.

[0015] In one implementation, step S3 specifically includes the following steps: positioning and constructing the outer plate middle assembly on the low-position jig, flipping over and installing the inner shell middle assembly and the compartment components, and forming the anti-torsion box in sections.

[0016] In one implementation, step S4 involves moving the bulwark sections using a forklift or hand chain hoist.

[0017] In one implementation, step S6 is also included: the assembled bulwark section and anti-torsion box section are coated on the mast with the anti-torsion box outer plate as the base surface, and after the coating is completed, the anti-torsion box section is side-mounted and the resulting section is then flipped and mounted.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] This invention divides the bulwark into multiple bulwark sections and arranges low-level and high-level support frames according to the distance between the outer side of the bulwark and the outer side of the anti-torsion box. This allows for welding connections between the bulwark and anti-torsion box sections when the anti-torsion box sections are lying on their sides, freeing up dock crane resources, enabling high-altitude operations to be performed at a lower level, reducing dockwork difficulty, avoiding dockwork overlap, and effectively improving construction efficiency. It also improves the precision of section assembly. Painting is performed after the bulwark and anti-torsion box sections are welded together, ensuring the integrity of the paint finish. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the connection between the bulwark and the anti-torsion box in an embodiment of this application;

[0021] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0022] Figure 3 This is a schematic diagram of the installation of the bulwark section and the anti-torsion box section on the high and low jigs in an embodiment of this application.

[0023] Reference numerals: 1. Low-level frame; 2. High-level frame; 3. Outer plate mid-section; 4. Inner shell plate mid-section; 5. Compartment component; 6. Bulkhead; 601. Bulkhead section; 7. Torsion box; 701. Torsion box section; 702. Section joint; 8. Main deck; 9. Box column; 10. Cable guide hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0025] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0026] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0027] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical connection or internal connection between two components. They can be direct connection or indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0029] A bulwark 6 is welded to the edge of the deck surface of the anti-torsion box 7. The anti-torsion box 7 is formed by connecting multiple anti-torsion box sections. The part connecting the anti-torsion box sections is the section joint 702. Box posts 9 and cable guide holes 10 are also fixedly installed at the edge of the deck surface of the anti-torsion box 7. The bulwark 6 is located between the box posts 9 and the box posts 9 or the cable guide holes 10.

[0030] This embodiment provides a method for installing deck bulwarks in sections, specifically including the following steps:

[0031] S1, the entire ship's bulwark 6 is divided into multiple bulwark sections 601, and the bulwark sections 601 on each anti-torsion box section 701 are all within the range of the anti-torsion box section.

[0032] Since the bulwark 6 is located between the column 9 and the column 9 or the cable guide hole 10, and the position of each segment joint 702 does not coincide with the column 9 or the cable guide hole, in order to facilitate the installation of the bulwark segment 601 in the anti-torsion box segment 701, step S1 also includes the following steps:

[0033] S11, based on the positions of the box column 9 and the cable guide hole 10, the entire ship's bulwark 6 is divided into multiple bulwark sections 601 for the first time;

[0034] S12, based on the position of the segment joints 702 between the anti-torsion box segments 701, the bulwark segments 601 divided in S11 are further divided into final bulwark segments 601, so that the length of each bulwark segment 601 does not exceed the length of the anti-torsion box segment 701, such as... Figure 1 As shown.

[0035] S2, arrange the low-position tire carrier 1 and the high-position tire carrier 2, such as Figure 3 As shown, the high-position bracket 2 is located on one side of the low-position bracket 1. The height difference between the high-position bracket 2 and the low-position bracket 1 is equal to the distance between the outer side of the bulwark 6 and the outer side of the anti-torsion box 7 when the bulwark 6 is connected to the anti-torsion box 7. The high-position bracket 2 is used to support the bulwark section 601, and the low-position bracket 1 is used to support the anti-torsion box section 701.

[0036] S3, fabricate anti-torsion box segment 701 on the low-positioned tire frame 1.

[0037] In this embodiment, the anti-torsion box segment 701 includes an outer plate middle group 3, an inner shell plate middle group 4, and a compartment component 5. Step S3 specifically includes the following steps: positioning and constructing the outer plate middle group 3 on the low-position jig 1, flipping over and installing the inner shell plate middle group 4 and the compartment component 5, and the anti-torsion box segment 701 is formed.

[0038] S4, fabricate the bulwark section 601 on the anti-torsion box section 701 formed in S3, and move and position the bulwark section 601 to the high-position jig 2.

[0039] In this embodiment, a forklift or a hand-operated hoist is used to move the bulwark section 601.

[0040] S5. Weld and fix the bulwark section 601 to the anti-torsion box section 701 to complete the installation of the bulwark section.

[0041] S6, the assembled bulwark section 601 and anti-torsion box section 701 are coated on the mast with the anti-torsion box outer plate as the base. After the coating is completed, the anti-torsion box section 701 is side-mounted and the resulting section is then flipped and mounted.

[0042] With this invention, the bulwark is installed completely in the segmented stage. After the entire section is flipped and mounted, the bulwark does not need to be installed in the dock stage, thus avoiding paint damage caused by the anti-twisting box during construction.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for segmented installation of deck bulwarks, characterized in that, Includes the following steps: S1, the entire ship's bulwark is divided into multiple bulwark sections, so that the bulwark sections on each anti-torsion box section are within the range of the anti-torsion box section; S2, Arrange a low-position bracket and a high-position bracket. The high-position bracket is located on one side of the low-position bracket. The height difference between the high-position bracket and the low-position bracket is equal to the distance between the outer side of the bulwark and the outer side of the anti-torsion box when the bulwark is connected to the anti-torsion box. The high-position bracket is used to support the bulwark section, and the low-position bracket is used to support the anti-torsion box section. S3, fabricate anti-torsion box segments on the low-positioned tire frame; S4, fabricate the bulwark section on the S3 molded anti-torsion box section, and move and position the bulwark section to the high-position jig; S5. Weld and fix the bulwark section to the anti-torsion box section to complete the installation of the bulwark section.

2. The method for segmented installation of deck bulwarks according to claim 1, characterized in that, Step S1, which divides the entire ship's bulwark into multiple bulwark sections, specifically involves the following steps: S11, based on the location of the box column and the cable guide hole, the entire ship's bulwark is divided into multiple bulwark sections for the first time; S12, based on the position of the joint between the anti-torsion box sections, the bulwark sections divided in S11 are further divided into the final bulwark sections, so that the length of each bulwark section does not exceed the length of the anti-torsion box section.

3. The method for segmented installation of deck bulwarks according to claim 1, characterized in that, The anti-torsion box section includes an outer plate middle group, an inner shell plate middle group, and a compartment component.

4. The method for segmented installation of deck bulwarks according to claim 3, characterized in that, Step S3 specifically includes the following steps: positioning and constructing the outer plate middle group on the low-position jig, flipping over and installing the inner shell middle group and the compartment components, and forming the anti-torsion box in sections.

5. The method for segmented installation of deck bulwarks according to claim 1, characterized in that, In step S4, forklifts or hand-operated hoists are used to move the bulwark sections.

6. The method for segmented installation of deck bulwarks according to claim 1, characterized in that, It also includes step S6: the assembled bulwark section and anti-torsion box section are coated on the mast with the anti-torsion box outer plate as the base. After the coating is completed, the anti-torsion box section is side-mounted and assembled. The resulting section is then flipped over and mounted.

Images