A bow thruster segmental construction method
By dividing the bow thruster into upper and lower structures and simultaneously installing the bow thruster and iron outfitting platform, the problems of difficult precision adjustment and low construction efficiency of the bow thruster were solved, thus simplifying precision adjustment and shortening construction time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUDONG ZHONGHUA SHIPBUILDINGGROUP
- Filing Date
- 2025-01-09
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, it is difficult to adjust the installation accuracy of the bow thruster, resulting in low construction efficiency. The construction of outfitting components within the bow thruster section is difficult, and collisions are prone to occur during the hoisting process.
The bow thruster is divided into an upper structure and a lower structure. The bow thruster device and thruster cylinder are first installed on the inner bottom plate, and the iron outfitting platform and platform unit are built simultaneously to reduce the difficulty of precision adjustment and construction, and improve construction efficiency.
This reduced the difficulty of precision adjustment of the bow thruster, avoided collisions during hoisting, shortened construction time, and improved construction efficiency and ship production cycle.
Smart Images

Figure CN119749802B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of shipbuilding, and in particular to a method for constructing bow thruster sections. Background Technology
[0002] Bow thrusters, as an important component of the ship's operating system, are now widely used on ships. Due to their structural design, bow thrusters often need to be installed in advance during the section-by-section stage, requiring extremely high installation precision.
[0003] The conventional construction method for bow thruster sections is to install the bow thruster and other outfitting components after the section structure is formed. However, this construction method has significant limitations. First, it is difficult to adjust the precision of the bow thruster after the structure is complete, and the hoisting process is prone to collisions. Second, it is necessary to wait until the bow thruster is installed before installing the iron outfitting platform, piping system, electrical system and many other outfitting components, which seriously affects the construction efficiency. In addition, the iron outfitting platform needs to be installed normally inside the section, which is difficult to construct. Summary of the Invention
[0004] In view of the deficiencies in the prior art, this application provides a method for constructing a bow thruster segment to solve the technical problems in the prior art, such as the difficulty in adjusting the accuracy of the bow thruster device, the high difficulty in constructing outfitting components in the bow thruster segment, and the low construction efficiency.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:
[0006] A method for constructing a bow thruster segment includes the following steps:
[0007] S1. The bow thruster is divided into an upper structure and a lower structure, with the inner bottom plate as the boundary.
[0008] S2. Construct the lower structure;
[0009] S3. Construct the superstructure;
[0010] S4. Use the lower structure built in S2 as the base plane of the large group;
[0011] S5. Install the bow thruster and thrust cylinder at the designed location of the substructure;
[0012] S6. Install the upper structure at the designed location of the lower structure to form a partial bow thruster segment;
[0013] S7. During the synchronization process from S2 to S6, a platform unit consisting of an iron outfitting platform and its internal support structure is assembled.
[0014] S8. Install the platform unit into the bow thruster section formed by S6;
[0015] S9. Install the missing pipes and cables to part of the bow thrust section.
[0016] S10. Install outfitting components that need to be installed when part of the bow thruster section is in normal condition to form a complete bow thruster section.
[0017] In one implementation, the lower structure in step S2 is an inner bottom plate assembly. The lower structure is constructed in reverse with the inner bottom plate as the base surface. The longitudinal ribs and ribs are installed sequentially on the inner bottom plate according to the design position. Then, the outer plates of the lower structure are scattered on the outer side of the ribs and the inner bottom plate.
[0018] In one embodiment, the superstructure includes a platform midship group, a port side outer plating midship group, and a starboard side outer plating midship group. The platform midship group is located on the stern side of the upper surface of the inner bottom plate, and the port side outer plating midship group and the starboard side outer plating midship group are both located on the bow side of the upper surface of the inner bottom plate. The port side outer plating midship group is connected to the left side of the bow end face of the platform midship group, and the starboard side outer plating midship group is connected to the right side of the bow end face of the platform midship group.
[0019] In one implementation, step S3 includes: S31, constructing the platform mid-section using the platform plate as the base surface, installing longitudinal ribs and ribs sequentially on the platform plate according to the design positions, and then attaching outer plates to the outer sides of the ribs and platform plate; S32, constructing the port side outer plate mid-section and the starboard side outer plate mid-section using the outer plates of the port side outer plate mid-section and the starboard side outer plate mid-section as the base surfaces, respectively.
[0020] In one implementation, in step S4, the inner bottom plate of S2 is flipped onto the upper frame as the base surface of the large group.
[0021] In one implementation, step S6 includes: turning over the platform mid-assembly and installing the platform mid-assembly to the designed position of the substructure; turning over the port side outer plating mid-assembly and installing the port side outer plating mid-assembly to the designed position of the substructure; and turning over the starboard side outer plating mid-assembly and installing the starboard side outer plating mid-assembly to the designed position of the substructure.
[0022] In one implementation, step S7 includes: assembling the iron outfitting platform on the ground, installing a support frame inside the iron outfitting platform, and installing pipes and cables located inside the iron outfitting platform to form a platform unit.
[0023] In one implementation, step S8 includes: first turning over the platform unit, and then installing the platform unit onto a portion of the bow thruster section.
[0024] In one embodiment, the outfitting includes a grille, an equipment base, and railings.
[0025] Compared with the prior art, this application has at least the following beneficial effects:
[0026] This application divides the bow thruster section into an upper structure and a lower structure, with the inner bottom plate as the boundary. After constructing the lower structure, the bow thruster and thruster cylinder are installed on the inner bottom plate, which reduces the difficulty of precision adjustment of the bow thruster and avoids collisions during hoisting. This application also constructs platform units on the ground in a reverse manner while constructing the upper and lower structures and installing the bow thruster, which reduces the closure time of the bow thruster section, reduces the difficulty of platform unit construction, improves construction efficiency, and shortens the ship production cycle. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of each segment joining together in the embodiments of this application;
[0028] Figure 2 This is the bow thruster segment in the embodiments of this application.
[0029] Reference numerals: 1. Inner bottom plate midline assembly; 101. Inner bottom plate; 2. Platform midline assembly; 201. Platform plate; 3. Port outer plate midline assembly; 4. Starboard outer plate midline assembly; 5. Bow thruster; 6. Thruster cylinder; 7. Platform unit. Detailed Implementation
[0030] 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.
[0031] 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.
[0032] 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."
[0033] 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.
[0034] 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.
[0035] This invention discloses a method for constructing a bow thruster segment, comprising the following steps:
[0036] S1. The bow thruster section is divided into upper and lower structures with the inner bottom plate 101 as the boundary.
[0037] S2. Construct the lower structure.
[0038] In step S2, the lower structure is the inner bottom plate group 1. The lower structure is constructed in reverse with the inner bottom plate 101 as the base surface. The longitudinal bones and ribs are installed on the inner bottom plate in sequence according to the design position. Then, the outer plates of the lower structure are attached to the outside of the ribs and the inner bottom plate 101.
[0039] S3. Construct the superstructure.
[0040] In step S3, the superstructure includes platform midship group 2, port side outer plating midship group 3, and starboard side outer plating midship group 4, such as... Figure 1 , 2 As shown, platform mid-section 2 is located on the stern side of the upper surface of the inner bottom plate 101, while port outer plate mid-section 3 and starboard outer plate mid-section 4 are both located on the bow side of the upper surface of the inner bottom plate 101. Port outer plate mid-section 3 is connected to the left side of the bow end face of platform mid-section 2, and starboard outer plate mid-section 4 is connected to the right side of the bow end face of platform mid-section 2.
[0041] Step S3 includes: S31, constructing platform mid-section 2 in reverse with platform plate 201 as the base surface, installing longitudinal ribs and ribs sequentially on platform plate 201 according to the design position, and then attaching outer plates to the outer side of the ribs and platform plate 201; S32, constructing port outer plate mid-section 3 and starboard outer plate mid-section 4 with the outer plates of port outer plate mid-section 3 and starboard outer plate mid-section 4 as the base surfaces respectively.
[0042] S4. Use the lower structure built in S2 as the base plane of the large group.
[0043] In this embodiment, in step S4, the inner bottom plate of group 1 in S2 is flipped onto the upper frame as the base surface of the large group.
[0044] S5. Install the bow thruster 5 and the thrust cylinder 6 at the designed location of the lower structure.
[0045] S6. Install platform midships 2, port side outer plating midships 3 and starboard side outer plating midships 4 at the designed location of the substructure to form part of the bow thruster section.
[0046] In this embodiment, step S6 includes: flipping the platform mid-section 2, installing the platform mid-section 2 to the designed position of the lower structure; flipping the port side outer plating mid-section 3, installing the port side outer plating mid-section 3 to the designed position of the lower structure; and flipping the starboard side outer plating mid-section 4, installing the starboard side outer plating mid-section 4 to the designed position of the lower structure.
[0047] S7. During the synchronization process from S2 to S6, platform unit 7 is assembled, including the iron outfitting platform and the internal support of the iron outfitting platform.
[0048] In this embodiment, S7 includes: assembling the iron outfitting platform in reverse on the ground; installing a support bracket for pipes and cables inside the iron outfitting platform; and installing pipes and cables located inside the iron outfitting platform to form platform unit 7. Wherein,
[0049] S8. Install platform unit 7 into the bow thruster section formed by S6.
[0050] In this embodiment, S8 includes: first turning over the platform unit 7, and then installing the platform unit 7 onto part of the bow thruster section.
[0051] S9. Install the missing pipes and cables to part of the bow thrust section.
[0052] S10. Install outfitting components that need to be installed in the normal state of part of the bow thruster section. The outfitting components include gratings, equipment bases and railings to form a complete bow thruster section.
[0053] 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 constructing a bow thruster segment, characterized in that, Includes the following steps: S1. The bow thruster is divided into an upper structure and a lower structure, with the inner bottom plate as the boundary. S2. Construct the lower structure, which is the inner bottom plate. Construct the lower structure in reverse with the inner bottom plate as the base surface. Install longitudinal ribs and ribs on the inner bottom plate in sequence according to the design position. Then, attach the outer plates of the lower structure to the outside of the ribs and the inner bottom plate. S3. Construct the superstructure, which includes a platform mid-section, a port side outer plating mid-section, and a starboard side outer plating mid-section. The platform mid-section is located on the stern side of the upper surface of the inner bottom plate. The port side outer plating mid-section and the starboard side outer plating mid-section are both located on the bow side of the upper surface of the inner bottom plate. The port side outer plating mid-section is connected to the left side of the bow end face of the platform mid-section, and the starboard side outer plating mid-section is connected to the right side of the bow end face of the platform mid-section. S4. Turn the lower structure built in S2 over as the base of the large group; S5. Install the bow thruster and thrust cylinder at the designed location of the substructure; S6. Install the upper structure at the designed location of the lower structure to form a partial bow thruster segment; S7. During the synchronization process from S2 to S6, a platform unit consisting of an iron outfitting platform and its internal support structure is assembled. S8. Install the platform unit into the bow thruster section formed by S6; S9. Install the missing pipes and cables to part of the bow thrust section; S10. Install outfitting components that need to be installed when part of the bow thruster section is in normal condition to form a complete bow thruster section.
2. The method for constructing a bow thruster segment according to claim 1, characterized in that, Step S3 includes: S31, constructing the platform mid-section using the platform plate as the base surface, installing longitudinal ribs and ribs sequentially on the platform plate according to the design positions, and then attaching outer plates to the outer sides of the ribs and platform plate; S32, constructing the port side outer plate mid-section and the starboard side outer plate mid-section using the outer plates of the port side outer plate mid-section and the starboard side outer plate mid-section as the base surfaces respectively.
3. The method for constructing a bow thruster segment according to claim 1, characterized in that, In step S4, the inner bottom plate of S2 is flipped onto the upper frame as the base surface of the large group.
4. The method for constructing a bow thruster segment according to claim 1, characterized in that, Step S6 includes: turning over the platform mid-section assembly, installing the platform mid-section assembly to the designed position of the substructure, turning over the port side outer plating mid-section assembly, installing the port side outer plating mid-section assembly to the designed position of the substructure, and turning over the starboard side outer plating mid-section assembly to the designed position of the starboard side outer plating mid-section assembly.
5. The method for constructing a bow thruster segment according to claim 1, characterized in that, Step S7 includes: assembling the iron outfitting platform on the ground, installing a support frame inside the iron outfitting platform, and installing pipes and cables located inside the iron outfitting platform to form a platform unit.
6. The method for constructing a bow thruster segment according to claim 5, characterized in that, Step S8 includes: first turning over the platform unit, and then installing the platform unit onto part of the bow thruster section.
7. The method for constructing a bow thruster segment according to claim 1, characterized in that, The outfitting components include a grille, an equipment base, and railings.