Deck bulwark segmented installation method

Abstract

The invention discloses a deck bulwark subsection installation method. The method comprises the following steps that bulwark subsections are divided; arranging a low-position jig frame and a high-position jig frame; torsion box segments are manufactured on the low-position jig frame; moving and positioning the bulwark section by section to a high-position jig frame; and the bulwark sections and the torsion box sections are welded and fixed. According to the method, when the torsion box sections are laterally laid, the bulwark sections and the torsion box sections are connected in a welded mode, dock crane resources are liberated, high-altitude operation is conducted at a low altitude, the dock operation difficulty is lowered, the dock cross effect is avoided, the construction efficiency is effectively improved, and the section combination precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a method for installing a deck bulwark in sections. Background Art

[0002] During the shipbuilding process, some ship types have bulwarks installed on the deck surface edge of the torsion box segment to prevent piracy. The deck bulwarks are usually installed in the dock stage by loose lifting using a gantry crane. The loose lifting of the deck bulwarks not only occupies the dock crane resources, but also increases the construction difficulty and risk of dock cross-operation. In order to free up dock crane resources, the prior art advances the installation of bulwark segments to the segment stage. For example, a method for installing bow bulwark segments disclosed in Chinese patent CN116573118 requires turning the bow segment over to a reversed form, and welding the reversed bow segment to the set bulwark segments. This method is not only complicated to operate, but also has low installation efficiency and installation accuracy. The torsion box segment and the bow segment have very different structures, so the bulwark segment installation method disclosed in Chinese patent CN116573118 is not suitable for deck bulwark segment installation. Summary of the invention

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

[0004] In order to achieve the purpose of the above invention, the technical solution provided by the present invention is as follows:

[0005] A method for installing a deck bulwark in sections comprises the following steps:

[0006] S1, divide the whole ship bulwark into multiple bulwark sections, so that the bulwark sections on each torsion box section are within the range of the torsion box section.

[0007] S2, arranging a low tire frame and a high tire frame, wherein the high tire frame is located on one side of the low tire frame, and the height difference between the high tire frame and the low tire frame is equal to the distance between the outer side of the bulwark and the outer side of the torsion box when the bulwark is connected to the torsion box, the high tire frame is used to support the bulwark segment, and the low tire frame is used to support the torsion box segment;

[0008] S3, making the torsion box segment on the low tire frame;

[0009] S4, manufacturing the bulwark segments on the S3 formed torsion box segments, and moving and positioning the bulwark segments to the high-position tire frame;

[0010] S5, fix the bulwark segments and the torsion box segments by welding to complete the installation of the bulwark segments.

[0011] In one embodiment, step S1 further comprises the following steps:

[0012] S11, divide the whole ship bulwark into multiple bulwark sections for the first time according to the positions of the box columns and fairlead holes;

[0013] S12, dividing the bulwark segments divided in S11 into final bulwark segments according to the positions of the segment joints between the torsion box segments, so that the length of each bulwark segment does not exceed the length of the torsion box segment.

[0014] In one embodiment, the torsion box segment includes a middle group of middle plates, a middle group of inner shell plates and a bulkhead component.

[0015] In one embodiment, step S3 specifically includes the following steps: positioning and constructing the outer plate middle group on the low-position tire frame, turning over and installing the inner shell plate middle group and the compartment components, and forming the torsion box in sections.

[0016] In one embodiment, in step S4, the bulwark segments are moved using a forklift or a hand chain hoist.

[0017] In one embodiment, the step S6 is also included: the assembled bulwark segments and torsion box segments are sent to the upper frame for painting with the torsion box outer plate as the base, and after the painting is completed, the torsion box segments are assembled in a side state, and the formed segments are turned over and loaded.

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

[0019] The present invention divides the bulwark into a plurality of bulwark segments, and arranges a low-position tire frame and a high-position tire frame according to the distance between the outer side of the bulwark and the outer side of the torsion box, so that when the torsion box segment is lying on its side, the bulwark segment is welded and connected with the torsion box segment, freeing up dock crane resources, allowing high-altitude operations to be done at low altitudes, reducing the difficulty of dock operations, avoiding dock cross-actions, and effectively improving construction efficiency. The accuracy of segment combination is improved. The bulwark segment is welded with the torsion box segment and then painted, ensuring the integrity of the painting. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA;

[0022] Figure 3 It is a schematic diagram of installing bulwark segments and torsion box segments on high and low tire frames according to an embodiment of the present application.

[0023] Figure numerals: 1. low tire frame; 2. high tire frame; 3. outer shell middle group; 4. inner shell middle group; 5. bulkhead; 6. bulwark; 601. bulwark section; 7. torsion box; 701. torsion box section; 702. section joint; 8. main deck; 9. box column; 10. fairlead hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

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

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

[0027] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0029] Bulwark 6 is welded to the edge of the deck surface of torsion box 7. The torsion box 7 is formed by connecting a plurality of torsion box segments. The parts connecting the torsion box segments to each other are segment joints 702. Box columns 9 and fairleads 10 are also fixed to the edge of the deck surface of torsion box 7. Bulwark 6 is arranged between box columns 9 and box columns 9 or fairleads 10.

[0030] This embodiment provides a method for installing a deck bulwark in sections, which specifically includes the following steps:

[0031] S1, the whole ship bulwark 6 is divided into a plurality of bulwark segments 601, and the bulwark segments 601 on each torsion box segment 701 are all within the range of the torsion box segment.

[0032] Since the bulwark 6 is arranged between the box columns 9 and the box columns 9 or the fairlead hole 10, and the position of each segment joint 702 does not coincide with the box column 9 or the fairlead hole, in order to facilitate the installation of the bulwark segment 601 on the torsion box segment 701, step S1 further includes the following steps:

[0033] S11, dividing the entire ship bulwark 6 into a plurality of bulwark segments 601 for the first time according to the positions of the box column 9 and the fairlead 10;

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

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

[0036] S3, manufacturing the torsion box segment 701 on the low tire frame 1.

[0037] In this embodiment, the 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 tire frame 1, turning over and installing the inner shell plate middle group 4 compartment component 5, and the torsion box segment 701 is formed.

[0038] S4, manufacturing the bulwark segment 601 on the torsion box segment 701 formed in S3, and moving and positioning the bulwark segment 601 to the high-position tire frame 2.

[0039] In this embodiment, the bulwark segment 601 is moved by using a forklift or a hand winch.

[0040] S5, welding and fixing the bulwark segment 601 and the torsion box segment 701, thereby completing the installation of the bulwark segment.

[0041] S6, the assembled bulwark segment 601 and the torsion box segment 701 are sent to the upper frame for painting with the torsion box outer plate as the base. After the painting is completed, the torsion box segment 701 is assembled in a side state, and the formed segment is turned over and loaded.

[0042] With the present invention, the bulwarks are completely installed in the segmented stage, and after the entire segment is turned over and loaded, the bulwarks do not need to be installed in the dock stage, thus avoiding paint damage to the torsion box caused by construction.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for installing a deck bulwark in sections, characterized in that: The following steps are involved: S1, divide the whole ship bulwark into multiple bulwark sections, so that the bulwark sections on each torsion box section are within the range of the torsion box section. S2, arranging a low tire frame and a high tire frame, wherein the high tire frame is located on one side of the low tire frame, and the height difference between the high tire frame and the low tire frame is equal to the distance between the outer side of the bulwark and the outer side of the torsion box when the bulwark is connected to the torsion box, the high tire frame is used to support the bulwark segment, and the low tire frame is used to support the torsion box segment; S3, making the torsion box segment on the low tire frame; S4, manufacturing the bulwark segments on the S3 formed torsion box segments, and moving and positioning the bulwark segments to the high-position tire frame; S5, fix the bulwark segments and the torsion box segments by welding to complete the installation of the bulwark segments.

2. The method for installing the deck bulwark in sections according to claim 1, characterized in that Step S1 also includes the following steps: S11, divide the whole ship bulwark into multiple bulwark sections for the first time according to the positions of the box columns and fairlead holes; S12, dividing the bulwark segments divided in S11 into final bulwark segments according to the positions of the segment joints between the torsion box segments, so that the length of each bulwark segment does not exceed the length of the torsion box segment.

3. The method for installing the deck bulwark in sections according to claim 1, characterized in that: The torsion box segment comprises a middle group of outer plates, a middle group of inner shell plates and a bulkhead component.

4. The method for installing the deck bulwark in sections 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 tire frame, turning over and installing the inner shell plate middle group and the compartment components, and forming the torsion box in sections.

5. The method for installing the deck bulwark in sections according to claim 1, characterized in that: In step S4, the bulwark segments are moved using a forklift or a hand winch.

6. The method for installing the deck bulwark in sections according to claim 1, characterized in that: The step S6 is also included: the assembled bulwark segments and torsion box segments are sent to the upper frame for painting with the torsion box outer plate as the base, and after the painting is completed, the torsion box segments are assembled in a side state, and the formed segments are turned over and loaded.

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