Bulwark plate, bulwark plate processing method and hull structure

Abstract

This invention belongs to the field of ship structure technology and discloses a bow and stern pillar outer plate, a method for processing the bow and stern pillar outer plate, and a ship structure. The bow and stern pillar outer plate is a bow end outer plate or a stern end outer plate located at the bow end of the ship. In the bow and stern pillar outer plate, the center keel plate extends along the length of the ship, and the center line of the center keel plate is located in the midship plane, so that the center keel plate is arranged in the midship position. The left outer plate is located to the left of the center keel plate and is welded to the left side wall of the center keel plate. The right outer plate is located to the right of the center keel plate and is welded to the right side wall of the center keel plate. Therefore, the left and right outer plates do not need to cross the midship, and the curvature of the left and right outer plates will not be large due to the small angle between the waterline and the midship plane of the bow and stern pillar outer plate. This facilitates processing and results in high precision of the processed parts.

Description

Technical Field

[0001] This invention relates to the field of ship structure technology, and in particular to the outer plates of the bow and stern pillars, the processing method of the outer plates of the bow and stern pillars, and the ship structure. Background Technology

[0002] To improve speed, ships with high speed requirements typically have bow and stern profiles that are highly curved and generally slender. For example... Figure 1 The diagram shown is a partial half-width waterline view of the bow and stern pillar outer plates in the prior art. In this hull type, the waterline of the bow and stern pillar outer plates forms a 32° angle with the midships plane. The overall shape is relatively slender and has excessive curvature. Because the bow and stern pillar outer plates extend across the midships, the overall shape of the part is saddle-shaped. The problem is that the bow and stern pillar outer plates need to be roughly formed by cold pressing, followed by hot pressing, and only after the accuracy is checked can they be finally formed. This results in high processing difficulty for the bow and stern pillar outer plates, and poor precision of the processed parts. Summary of the Invention

[0003] According to one aspect of the present invention, the present invention provides a bow and stern pillar outer plate to solve the problems of high processing difficulty and poor precision of traditional bow and stern pillar outer plates.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The bow and stern pillar outer plating, wherein the bow and stern pillar outer plating is a bow end outer plating disposed at the bow end of the hull or a stern end outer plating disposed at the stern end of the hull; the bow and stern pillar outer plating includes:

[0006] The midships plank extends along the length of the ship, and the centerline of the midships plank lies within the midships plane;

[0007] The left outer plate is located on the left side of the middle keel plate, and the left outer plate is welded to the left side wall of the middle keel plate;

[0008] The right outer plate is located on the right side of the middle keel plate, and the right outer plate is welded to the right side wall of the middle keel plate.

[0009] As a preferred embodiment of the bow and stern pillar outer panels, the tangent at the intersection of the left outer panel and the center keel plate is the tangent of the left outer panel, and the angle between the tangent of the left outer panel and the center keel plate does not exceed 50°; and / or,

[0010] The tangent at the intersection of the right outer panel and the middle keel plate is the tangent of the right outer panel, and the angle between the tangent of the right outer panel and the middle keel plate does not exceed 50°.

[0011] As a preferred embodiment of the bow and stern pillar outer plates, the center keel plate has a center keel plate body and a welding portion connected to the center keel plate body. The left outer plate and the right outer plate are both welded to the welding portion, and the weld metal for welding the left outer plate and the right outer plate to the welding portion is located in the welding portion.

[0012] As a preferred embodiment of the outer plate of the bow and stern pillars, the length of the welded portion along the length of the ship is not less than 50 mm.

[0013] As a preferred embodiment of the bow and stern pillar outer plates, the thickness of the welded portion is not less than 100 mm.

[0014] As a preferred embodiment of the bow and stern pillar outer plates, the welding part includes a welding part body connected to the center keel body and an extension connected to the welding part body. The weld metal for welding the left outer plate and the right outer plate to the welding part is located in the welding part body. The extension is located at the end of the welding part body away from the center keel body, and the thickness of the extension is less than the thickness of the welding part body.

[0015] As a preferred embodiment of the bow and stern pillar outer plates, the length of the left outer plate is not less than 700 mm; and / or, the length of the right outer plate is not less than 700 mm.

[0016] As a preferred embodiment of the bow and stern pillar outer plates, the left outer plate and the right outer plate are symmetrically distributed with respect to the midships plane.

[0017] According to another aspect of the present invention, a method for machining the outer plates of bow and stern pillars is provided, for machining the aforementioned outer plates of bow and stern pillars, the method comprising:

[0018] S100: The middle keel plate, the left outer plate, and the right outer plate are processed sequentially;

[0019] S200: The left outer plate and the right outer plate are welded to the middle duct plate in sequence.

[0020] According to another aspect of the invention, a hull structure is provided, including the aforementioned bow and stern pillar outer plates.

[0021] The beneficial effects of this invention are:

[0022] This invention provides a bow and stern pillar outer plate, which is a bow outer plate located at the bow end of the hull or a stern outer plate located at the stern end of the hull. In the bow and stern pillar outer plate, the center keel plate extends along the length of the ship, and the centerline of the center keel plate is located within the midship plane, so that the center keel plate is positioned midship. The left outer plate is located to the left of the center keel plate and is welded to the left side wall of the center keel plate. The right outer plate is located to the right of the center keel plate and is welded to the right side wall of the center keel plate. Therefore, neither the left nor the right outer plate needs to cross midship, and the curvature of the left and right outer plates will be large due to the small angle between the waterline and the midship plane of the bow and stern pillar outer plate. This facilitates processing, and the processed parts have high precision.

[0023] This invention also provides a method for processing the outer plates of the bow and stern pillars, used to process the aforementioned outer plates. In this method, the center keel plate, the left outer plate, and the right outer plate are processed sequentially. Of these three parts, the center keel plate is located amidships, while the left and right outer plates do not need to cross the midships, have less curvature, are easier to process, and produce parts with high precision. The left and right outer plates are then welded sequentially to the center keel plate to complete the processing of the outer plates of the bow and stern pillars. The processing is simple and allows for easy control of precision.

[0024] The present invention also provides a hull structure, including the aforementioned bow and stern pillar outer plates. In the bow and stern pillar outer plates, neither the left nor the right outer plates need to cross the midships. The curvature of the left and right outer plates will not be too large due to the small angle between the waterline and the midships plane of the bow and stern pillar outer plates, which facilitates processing and results in high precision of the processed parts. Attached Figure Description

[0025] Figure 1 This is a half-width waterline diagram of the outer plates of some bow and stern pillars in the existing technology;

[0026] Figure 2 This is an unfolded view of the outer plates of the bow and stern pillars in an embodiment of the present invention;

[0027] Figure 3 yes Figure 2 Sectional view of section AA;

[0028] Figure 4 This is a half-width waterline diagram of the outer plates of some of the bow and stern pillars in an embodiment of the present invention;

[0029] Figure 5 This is a flowchart of the processing method for the outer plates of the bow and stern pillars in an embodiment of the present invention.

[0030] In the picture:

[0031] 1. Middle keel plate; 11. Middle keel plate body; 12. Welding section; 121. Welding section body; 122. Extension section;

[0032] 2. Left outer panel;

[0033] 3. Right side outer panel. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0038] For ship types requiring high speeds, the bow and stern are typically designed with a highly curved and slender shape to maximize speed. Because the bow and stern pillar plating extends across the midships, the overall shape of the component is saddle-shaped. The problem is that this bow and stern pillar plating requires initial cold pressing to roughly form the shape, followed by hot pressing and precision checks before final shaping. This results in high processing difficulty and relatively poor precision in the finished part.

[0039] To address the aforementioned issues, this embodiment provides a bow and stern pillar outer plate to solve the problems of high processing difficulty and poor precision of traditional bow and stern pillar outer plates. It can be used in the field of hull structure technology, specifically in the hull structure of a 1400TEU dual-fuel container ship.

[0040] Reference Figures 2-4 The bow and stern pillar outer plates are either located at the bow or stern end of the hull. Specifically, the bow and stern pillar outer plates include a center keel plate 1, a left outer plate 2, and a right outer plate 3. The center keel plate 1 extends along the length of the ship, and its centerline lies within the midships plane, positioning it amidships. The left outer plate 2 is located to the left of the center keel plate 1 and is welded to its left side wall. The right outer plate 3 is located to the right of the center keel plate 1 and is welded to its right side wall. Therefore, neither the left outer plate 2 nor the right outer plate 3 needs to cross the midships plane, preventing excessive curvature due to a small angle between the waterline and the midships plane. This facilitates machining and results in higher precision of the machined parts.

[0041] Continue to refer to Figures 2-4 Optionally, the tangent at the intersection of the left outer plate 2 and the center keel plate 1 is the tangent of the left outer plate, and the angle between the tangent of the left outer plate and the center keel plate 1 does not exceed 50°. This reduces the angle between the left outer plate 2 and the center keel plate 1, increasing the overall taper of the bow and stern pillar outer plates, which is suitable for ships with higher speeds. Specifically, the angle between the tangent of the left outer plate and the center keel plate 1 can be 30°, 32°, 34°, 36°, 38°, 40°, 42°, 44°, 46°, 48°, or 50°. Optionally, the tangent at the intersection of the right outer plate 3 and the center keel plate 1 is the tangent of the right outer plate, and the angle between the tangent of the right outer plate and the center keel plate 1 does not exceed 50°. This reduces the angle between the right outer plate 3 and the center keel plate 1, increasing the overall taper of the bow and stern pillar outer plates, which is suitable for ships with higher speeds. Specifically, the angle between the tangent of the right outer panel and the middle keel plate 1 can be 30°, 32°, 34°, 36°, 38°, 40°, 42°, 44°, 46°, 48°, or 50°. This embodiment exemplarily provides a scheme where the angles between the tangent of the left outer panel and the middle keel plate 1, as well as the angles between the tangent of the right outer panel and the middle keel plate 1, do not exceed 50°. In other embodiments, the angle between the tangent of the left outer panel and the middle keel plate 1 can be designed to exceed 50°, or the angle between the tangent of the right outer panel and the middle keel plate 1 can be designed to exceed 50°, as needed.

[0042] Continue to refer to Figures 2-4The middle keel plate 1 has a middle keel plate body 11 and a welding part 12 connected to the middle keel plate body 11. The left outer plate 2 and the right outer plate 3 are both welded to the welding part 12, and the welds of the left outer plate 2 and the right outer plate 3 to the welding part 12 are all located in the welding part 12. The middle keel plate body 11 enables the middle keel plate 1 to stably connect to other structures of the hull and increase the structural strength, while the welding part 12 is used to connect to the left outer plate 2 and the right outer plate 3 by welding.

[0043] Continue to refer to Figures 2-4 The length of the welded part 12 along the length of the ship shall not be less than 50 mm, so that the welded part 12 has sufficient length to facilitate the welding operation.

[0044] Continue to refer to Figures 2-4 The thickness of the welded part 12 shall not be less than 100mm to ensure that the welded part 12 has a certain structural strength.

[0045] Continue to refer to Figures 2-4 The welding section 12 includes a welding section body 121 connected to the center keel plate body 11 and an extension 122 connected to the welding section body 121. The weld metal for welding the left outer plate 2 and the right outer plate 3 to the welding section 12 is located on the welding section body 121. The extension 122 is located at the end of the welding section body 121 away from the center keel plate body 11. The thickness of the extension 122 is less than the thickness of the welding section body 121, so that the thickness of the extension 122 relative to the welding section body 121 is reduced, so that the front end of the center keel plate 1 is a pointed tip, so as to guide the water flow towards both sides of the center keel plate 1 during navigation. Optionally, the end face of the extension 122 away from the welding section body 121 is an arc surface.

[0046] Continue to refer to Figures 2-4 In traditional designs, according to relevant regulations, the overall length of the bow and stern pillar outer plates in a 1400 TEU dual-fuel container ship is generally 800 mm, i.e., 400 mm on each side of the midships. In this embodiment, since the bow and stern pillar outer plates no longer span the midships, the length of the left outer plate 2 is no less than 700 mm, specifically 700 mm to 800 mm, to ensure sufficient length for processing. Similarly, the length of the right outer plate 3 is no less than 700 mm, specifically 700 mm to 800 mm, to ensure sufficient length for processing. In this embodiment, the lengths of both the left and right outer plates are no less than 700 mm. However, in other embodiments, the length of the left outer plate 2 or the right outer plate 3 can be designed to be less than 700 mm, depending on actual needs.

[0047] Continue to refer to Figures 2-4The left outer plate 2 and the right outer plate 3 are symmetrically distributed with respect to the midships plane so that the bow and stern pillar outer plates are symmetrical along the midships plane, which facilitates processing.

[0048] Reference Figure 5 This embodiment also provides a method for processing the bow and stern pillar outer plates, which is used to process the above-mentioned bow and stern pillar outer plates. The specific processing method for the bow and stern pillar outer plates includes the following steps.

[0049] S100: The middle keel plate 1, the left outer plate 2, and the right outer plate 3 are processed in sequence.

[0050] Of the three parts that need to be processed, the middle keel plate 1 is located in the midship position, while the left outer plate 2 and the right outer plate 3 do not need to cross the midship, have a smaller degree of curvature, are easier to process, and have higher precision after processing.

[0051] Specifically, the processing can be based on the half-width waterline diagram and unfolded diagram of the bow and stern pillar outer plates, or on the three-dimensional model diagram of the bow and stern pillar outer plates.

[0052] S200: Weld the left outer plate 2 and the right outer plate 3 to the middle keel plate 1 in sequence.

[0053] The aforementioned bow and stern pillar outer plates can be processed by welding, which is a simple process and allows for easy control of precision.

[0054] This embodiment also provides a hull structure, including the aforementioned bow and stern pillar outer plates. In the bow and stern pillar outer plates, the left outer plate 2 and the right outer plate 3 do not need to cross the midships. The curvature of the left outer plate 2 and the right outer plate 3 will not be too large due to the small angle between the waterline and the midships plane of the bow and stern pillar outer plates. This makes it easier to process, and the processed parts have high precision.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A stem and sternpost sheer strake, characterized in that The bow and stern pillar outer plates are either bow end outer plates located at the bow end of the hull or stern end outer plates located at the stern end of the hull; the bow and stern pillar outer plates include: The midships plate (1) extends along the length of the ship, and the centerline of the midships plate (1) is located within the midships plane; The left outer plate (2) is located on the left side of the middle keel plate (1), and the left outer plate (2) is welded to the left side wall of the middle keel plate (1); The right outer plate (3) is located on the right side of the middle dragon plate (1), and the right outer plate (3) is welded to the right side wall of the middle dragon plate (1); The tangent at the intersection of the left outer plate (2) and the middle keel plate (1) is the tangent of the left outer plate, and the angle between the tangent of the left outer plate and the middle keel plate (1) does not exceed 50°; and / or, The tangent at the intersection of the right outer plate (3) and the middle dragon plate (1) is the tangent of the right outer plate, and the angle between the tangent of the right outer plate and the middle dragon plate (1) does not exceed 50°. The middle duct plate (1) has a middle duct plate body (11) and a welding part (12) connected to the middle duct plate body (11). The left outer plate (2) and the right outer plate (3) are both welded to the welding part (12), and the solder of the left outer plate (2) and the right outer plate (3) to the welding part (12) is located in the welding part (12).

2. The bow and stern pillar outer plate according to claim 1, characterized in that, The length of the welded part (12) along the length of the ship shall not be less than 50 mm.

3. The bow and stern pillar outer plate according to claim 1, characterized in that, The thickness of the welded part (12) is not less than 100 mm.

4. The bow and stern pillar outer plate according to claim 1, characterized in that, The welding part (12) includes a welding part body (121) connected to the middle duct plate body (11) and an extension part (122) connected to the welding part body (121). The solder for welding the left outer plate (2) and the right outer plate (3) to the welding part (12) is located on the welding part body (121). The extension part (122) is located at the end of the welding part body (121) away from the middle duct plate body (11). The thickness of the extension part (122) is less than the thickness of the welding part body (121).

5. The bow and stern pillar outer plate according to claim 1, characterized in that, The length of the left outer panel (2) is not less than 700 mm; and / or the length of the right outer panel (3) is not less than 700 mm.

6. The bow and stern pillar outer plate according to claim 1, characterized in that, The left outer plate (2) and the right outer plate (3) are symmetrically distributed with respect to the midships plane.

7. A method for processing the outer plates of bow and stern pillars, characterized in that, The method for machining the bow and stern pillar outer plates as described in any one of claims 1-6 includes: S100: The middle dragon plate (1), the left outer plate (2) and the right outer plate (3) are processed in sequence. S200: The left outer plate (2) and the right outer plate (3) are sequentially welded to the middle duct plate (1).

8. The hull structure, characterized in that, Includes the bow and stern pillar outer plates as described in any one of claims 1-6.

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