Lofting method for hyperboloid cable guide hole components, cable guide hole components and ships
By using the layout method for hyperboloid cable guide holes, the difficulties in installing cable guide holes and the problem of joints were solved, achieving a good fit between the cable guide holes and the hull and improving aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD
- Filing Date
- 2025-11-10
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the cable guide hole components are not precisely laid out during the manufacturing process, which makes installation difficult and results in obvious seams between the outer edge and the bulwark, affecting the aesthetics of the hull.
The layout method of hyperboloid cable guide hole components is adopted. By obtaining the geometric center point, the vertical line of the operation direction, the bisectors and the projection points, the layout diagram is formed. This ensures that the cable guide hole components are compatible with the shape of the hull, reduces secondary processing, lowers the installation difficulty and reduces joints.
This design achieves a good fit between the cable guide hole and the hull shape, reduces installation difficulty, minimizes the seams between the outer edge and the bulwark, and enhances the hull's aesthetics.
Smart Images
Figure CN121106613B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of marine technology, and in particular to a method for laying out a hyperboloid cable guide hole, the cable guide hole, and a ship. Background Technology
[0002] A guide hole is a circular or elliptical annular cast steel component installed on the bulwark of a ship. Guide holes are typically made of cast iron or cast steel. Installed on the bulwark, the guide hole guides the mooring lines through the hull and prevents damage to the hull. The main function of the guide hole is to guide the mooring lines, ensuring they can be smoothly guided from inside the hull to the outside for mooring operations when the ship is docked. Simultaneously, the guide hole also restricts the exit position of the mooring lines, preventing them from shifting or tangling during mooring, thus ensuring the safety and stability of the mooring process.
[0003] Because the bulwarks where the guide wire holes are located (especially the stern bulwarks) are usually hyperboloids, the bulwark profile varies greatly. Since the guide wire holes are usually not precisely laid out during the manufacturing process, installation of the guide wire holes on various ships is often difficult. Moreover, after the guide wire holes are installed, there is a noticeable seam between the outer edge of the guide wire hole and the bulwark, resulting in an unsightly hull shape.
[0004] Therefore, a layout method for hyperboloid cable guide holes, cable guide holes, and a vessel are needed to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide a layout method for a hyperboloid cable guide hole component, the cable guide hole component, and a ship, which can reduce the difficulty of installation and reduce the seams between the outer edge of the cable guide hole component and the hull, thereby improving the aesthetics of the ship.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] The layout method for hyperboloid cable guide hole components includes the following steps:
[0008] S1. Obtain the geometric center point of the cable guide hole on the hull.
[0009] S2. On the hull plan view where the geometric center point is located, determine the curve where the geometric center point is located, and draw the first normal perpendicular line of the curve through the geometric center point. The first normal perpendicular line is the vertical center line of the cable guide hole.
[0010] S3. Offset the vertical center line to both sides by a set distance along the width direction of the ship, and draw multiple bisectors within the set distance according to a set step size. The bisectors are parallel to the vertical center line.
[0011] S4. Based on the multiple bisectors and waterline, make the corresponding cross-sectional solid shape lines, and based on the vertical center line and waterline, make the corresponding vertical solid shape lines of the cable guide hole.
[0012] S5. Draw the second normal perpendicular line of the vertical solid line of the cable guide hole, and obtain the intersection point of the second normal perpendicular line with each of the solid lines of the cross section;
[0013] S6. Project the intersection point along the direction perpendicular to the second normal line to obtain the projection point, and connect all the projection points to obtain the real line of the second normal line. The real line of the second normal line is the real line of the normal of the horizontal plane of the cable guide hole.
[0014] S7. Based on the vertical solid line and the normal solid line of the cable guide hole, draw the layout diagram of the cable guide hole component.
[0015] In some embodiments, in step S1, the geometric center point of the cable guide hole on the hull is obtained according to the design drawings.
[0016] In some embodiments, in step S3, a set distance is determined based on the outer diameter of the cable guide hole to offset the vertical centerline to both sides along the width direction of the ship.
[0017] In some embodiments, the vertical centerline is offset to both sides by a predetermined distance along the width direction of the ship by a distance greater than the outer diameter of the cable guide hole.
[0018] In some embodiments, in step S3, the set step size is set according to the outer diameter of the cable guide hole.
[0019] In some embodiments, in step S3, the set step size is adjusted according to the change in the span of the waterline.
[0020] In some embodiments, in step S7, it is also necessary to make a final adjusted three-view drawing of the cable guide hole component based on the three-view drawing of the design drawing.
[0021] The cable guide hole is manufactured using the layout method for hyperboloid cable guide holes described above.
[0022] In some embodiments, the inner wall of the cable guide hole is provided with a rolling element, which is rotatable relative to the cable guide hole.
[0023] A vessel, comprising a hull and a cable guide as described above, the cable guide being disposed on the hull's bulwark.
[0024] The beneficial effects of this invention are:
[0025] This invention provides a method for laying out a hyperboloid cable guide hole component. The method involves obtaining the geometric center point of the cable guide hole component's location on the hull; determining the curve containing the geometric center point on the hull plan view; drawing the first normal perpendicular line through the geometric center point to the curve, which is the vertical center line of the cable guide hole component; offsetting the vertical center line to both sides by a predetermined distance along the width direction of the ship; drawing multiple bisectors within the predetermined distance according to a predetermined step size, with the bisectors parallel to the vertical center line; and then, based on the multiple bisectors and the water... The corresponding section solid lines are drawn, and the corresponding vertical solid lines of the guide wire hole are drawn based on the vertical centerline and the waterline. A second normal perpendicular line is drawn to the vertical solid lines of the guide wire hole, and the intersection points of the second normal perpendicular line and each section solid line are obtained. The intersection points are projected along the direction perpendicular to the second normal perpendicular line to obtain projection points. All projection points are connected to obtain the solid line of the second normal perpendicular line, which is the normal solid line of the horizontal plane of the guide wire hole. A lofting drawing of the guide wire hole component is then drawn based on the vertical and normal solid lines of the guide wire hole. By using the above method, the guide wire hole component can be designed according to the hull shape where it will be installed, ensuring that the edge of the guide wire hole component matches the hull shape. This reduces secondary processing of the guide wire hole component during installation, thereby reducing installation difficulty and minimizing the seams between the outer edge of the guide wire hole component and the bulwark, improving the aesthetics of the hull.
[0026] The cable guide hole component provided by the present invention is manufactured by laying out the hyperboloid cable guide hole component as described above, which can reduce the difficulty of installation and reduce the seam between the outer edge of the cable guide hole component and the bulwark, thereby improving the aesthetics of the hull.
[0027] The present invention provides a ship, including a hull and a cable guide hole as described above, which can reduce the difficulty of installation and reduce the seam between the outer edge of the cable guide hole and the bulwark, thereby improving the aesthetics of the hull. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.
[0029] Figure 1 This is a flowchart of a layout method for a hyperboloid cable guide hole component according to the present invention;
[0030] Figure 2 This is a partial plan view of the hull where the geometric center point is located in the lofting method of the hyperboloid cable guide hole component of the present invention.
[0031] Figure 3 This is a schematic diagram of the dicing of equal lines in the layout method of a hyperboloid cable guide hole component of the present invention;
[0032] Figure 4 This is a cross-sectional view of the cable guide hole component in the layout method of the hyperboloid cable guide hole component of the present invention.
[0033] In the picture:
[0034] 1. Hull; 2. Cable guide hole; 3. Vertical centerline; 4. Dividing line. Detailed Implementation
[0035] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.
[0036] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0037] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
[0038] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
[0039] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.
[0040] In the design and manufacturing of cable guide hole components, in order to reduce installation difficulty, minimize the seams between the outer edge of the cable guide hole component and the bulwark, and improve the aesthetics of the hull, such as... Figures 1-4 As shown, this invention provides a method for laying out a hyperboloid cable guide hole component. The method for laying out a hyperboloid cable guide hole component includes the following steps:
[0041] S1. Obtain the geometric center point of the cable guide hole 2 on the hull 1.
[0042] S2. On the plan view of hull 1 where the geometric center point is located, determine the curve where the geometric center point is located. Draw the first normal perpendicular line of the curve through the geometric center point. The first normal perpendicular line is the vertical center line 3 of the cable guide hole 2.
[0043] S3. Offset the vertical centerline 3 to both sides by a set distance along the width direction of the ship, and make multiple bisectors 4 within the set distance according to the set step size. The bisectors 4 are parallel to the vertical centerline 3.
[0044] S4. Based on the multiple bisectors 4 and the waterline, make the corresponding cross-sectional solid lines, and based on the vertical centerline 3 and the waterline, make the corresponding vertical solid lines of the cable guide hole.
[0045] S5. Draw the second normal perpendicular line of the vertical solid line of the cable guide hole, and obtain the intersection point of the second normal perpendicular line with the solid line of each section;
[0046] S6. Project the intersection point along the direction perpendicular to the second normal line to obtain the projection point. Connect all the projection points to obtain the real line of the second normal line. The real line of the second normal line is the normal real line of the horizontal plane of the cable guide hole.
[0047] S7. Based on the vertical and normal solid lines of the cable guide hole, draw the layout drawing of cable guide hole component 2.
[0048] By adopting the above method, the cable guide hole 2 can be designed according to the shape of the hull 1 where it is installed, thereby ensuring that the edge of the cable guide hole 2 matches the shape of the hull 1. This reduces the need for secondary processing of the cable guide hole 2 during installation, thereby reducing the difficulty of installation. It also reduces the seam between the outer edge of the cable guide hole 2 and the bulwark, improving the aesthetics of the hull 1.
[0049] In some embodiments, in step S1, the geometric center point of the cable guide hole 2's arrangement position on the hull 1 is obtained according to the design drawings. By determining the installation position of the cable guide hole 2 on the design drawings, the geometric center of the cable guide hole 2 can be accurately obtained. Furthermore, since the hull 1 is subsequently constructed with reference to the design drawings, it can be ensured that the subsequently manufactured cable guide hole 2 fits the hull 1.
[0050] In some embodiments, in step S3, a predetermined distance is determined by offsetting the vertical centerline 3 to both sides along the width direction of the ship based on the outer diameter of the cable guide hole 2. Since the vertical centerline 3 is the central axis of the cable guide hole 2, determining the predetermined offset distance based on the outer diameter of the cable guide hole 2 allows for the determination of the edge position of the cable guide hole 2.
[0051] In some embodiments, the vertical centerline 3 is offset to both sides by a predetermined distance along the width direction of the ship, which is greater than the outer diameter of the cable guide hole 2. This ensures the smoothness of the subsequently obtained normal solid line.
[0052] In some embodiments, in step S3, the step size is set according to the outer diameter of the cable guide hole 2. Since the step size is directly related to the marking of the bisectors 4, setting it according to the outer diameter of the cable guide hole 2 can meet the design needs of cable guide holes 2 of different sizes.
[0053] In some embodiments, in step S3, the set step size is adjusted according to the change in the span of the waterline. For locations where the span of the waterline changes significantly, the set step size can be appropriately shortened to increase the density of the bisectors 4 and ensure the accuracy of the subsequently obtained normal solid lines. For locations where the span of the waterline does not change significantly, the set step size can be appropriately increased to reduce the density of the bisectors 4.
[0054] In some embodiments, step S7 also requires creating a final adjusted three-view drawing of the cable guide hole 2 based on the three-view drawing of the design drawing. The final three-view drawing of the manufactured cable guide hole 2 can be obtained through the above method.
[0055] This embodiment also provides a cable guide hole 2, which is manufactured by laying out the hyperboloid cable guide hole 2 using the above-mentioned laying out method. This reduces the difficulty of installation and reduces the seams between the outer edge of the cable guide hole 2 and the bulwark, thus improving the aesthetics of the hull 1.
[0056] In some embodiments, a rolling element is provided on the inner wall of the cable guide hole 2, and the rolling element can rotate relative to the cable guide hole 2. By providing the rolling element, the friction between the cable and the cable guide hole 2 can be changed from sliding friction to rolling friction, thereby reducing frictional resistance and protecting the cable guide hole 2, reducing wear on the cable guide hole 2.
[0057] This embodiment also provides a ship, which includes a hull 1 and a cable guide hole 2 as described above. The cable guide hole 2 is set on the bulwark of the hull 1, which can reduce the difficulty of installation and reduce the seam between the outer edge of the cable guide hole 2 and the bulwark, thereby improving the aesthetics of the hull 1.
[0058] 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 can make other variations or modifications based on the above description. 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 method for laying out hyperboloid cable guide holes, characterized in that, Includes the following steps: S1. Obtain the geometric center point of the cable guide hole (2) on the hull (1); S2. On the plan view of the hull (1) where the geometric center point is located, determine the curve where the geometric center point is located, and draw the first normal perpendicular line of the curve through the geometric center point. The first normal perpendicular line is the vertical center line (3) of the cable guide hole (2). S3. Offset the vertical centerline (3) to both sides by a set distance along the width direction of the ship. Make multiple bisectors (4) within the set distance according to a set step size. The bisectors (4) are parallel to the vertical centerline (3). Determine the set distance by which the vertical centerline (3) is offset to both sides along the width direction of the ship according to the outer diameter of the cable guide (2). The set distance by which the vertical centerline (3) is offset to both sides along the width direction of the ship is greater than the outer diameter of the cable guide (2). S4. Based on the multiple dividing lines (4) and the water line, make the corresponding cross-sectional solid lines, and based on the vertical center line (3) and the water line, make the corresponding vertical solid lines of the cable guide hole; S5. Draw the second normal perpendicular line of the vertical solid line of the cable guide hole, and obtain the intersection point of the second normal perpendicular line with each of the solid lines of the cross section; S6. Project the intersection point along the direction perpendicular to the second normal line to obtain the projection point, and connect all the projection points to obtain the real line of the second normal line. The real line of the second normal line is the real line of the normal of the horizontal plane of the cable guide hole. S7. Based on the vertical solid line and the normal solid line of the cable guide hole, make the layout drawing of the cable guide hole component (2).
2. The layout method for the hyperboloid cable guide hole component according to claim 1, characterized in that, In step S1, the geometric center point of the cable guide hole (2) on the hull (1) is obtained according to the design drawings.
3. The layout method for the hyperboloid cable guide hole component according to claim 1, characterized in that, In step S3, the set step length is set according to the outer diameter of the cable guide hole (2).
4. The layout method for the hyperboloid cable guide hole component according to claim 1, characterized in that, In step S3, the set step length is adjusted according to the change in the span of the waterline.
5. The layout method for the hyperboloid cable guide hole component according to claim 1, characterized in that, In step S7, it is also necessary to make the final adjusted three-view drawing of the cable guide hole (2) based on the three-view drawing of the cable guide hole (2) in the design drawing.
6. Cable guide hole component (2), characterized in that, The layout manufacturing is carried out using the layout method for the hyperboloid cable guide hole as described in any one of claims 1-5.
7. The cable guide hole component according to claim 6, characterized in that, The inner wall of the cable guide hole (2) is provided with a rolling element, which is capable of rotating relative to the cable guide hole (2).
8. A ship, characterized in that, It includes a hull (1) and a cable guide (2) as described in any one of claims 6-7, wherein the cable guide (2) is disposed on the bulwark of the hull (1).