Large assembly installation method of curved outer plate of ship and ship

Abstract

The present application provides a method for assembling and installing a curved outer plate of a ship and a ship, the method comprising: when assembling the outer plate of the upper section of the side thruster, the center line and multiple rib position lines in the bow and stern directions are marked on the bottom outer plate, so that the center line coincides with the longitudinal girder in the hull, and the multiple rib position lines coincide with the rib frame. A first platform line is marked at a predetermined transverse position of each edge outer plate, and multiple first rib position lines are marked longitudinally, so that the first platform lines of multiple edge outer plates are aligned, and the multiple first rib position lines of each edge outer plate coincide with the rib frame. A second platform line is marked at a predetermined transverse position of multiple perforated outer plates of the lower section of the side thruster, and multiple second rib position lines are marked longitudinally of each perforated outer plate, so that the second platform lines of multiple perforated outer plates are aligned, and the multiple second rib position lines of each perforated outer plate coincide with the rib frame. The upper section of the side thruster outer plate is buckled onto the lower section of the side thruster outer plate.

Description

Technical Field

[0001] The present application relates to the technical field of ship construction, and in particular to a method for assembling and installing a curved outer plate of a ship and a ship. Background Art

[0002] In order to improve the maneuverability of the ship, a thruster is usually installed at the bow. Since the thruster needs to be laid through the hull, during the construction of the ship's outer plate, it is necessary to drill holes in the outer plate after the outer plate is assembled.

[0003] At present, the specific operation of opening holes in the bow outer plate is as follows: design polyester paper according to the hole size, apply the designed polyester paper to the outer plate through a magnet, then draw a cutting line on the outer plate according to the polyester paper hole line, and finally open holes in the outer plate according to the cutting line. Since the outer plate has been assembled and built, the staff needs to climb high to apply the polyester paper and open holes and cut the outer plate at high altitude. The whole cutting process is difficult and the accuracy is difficult to control. At the same time, a large amount of outer plate surplus will be cut during the hole opening process, and the outer plate surplus must be transported on site. The entire outer plate construction process is cumbersome, difficult to operate, and low in production efficiency. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a method for assembling and installing a large curved outer plate of a ship, which solves the problems of complicated steps in the existing outer plate construction process, dangerous high-altitude operations and low production efficiency.

[0005] Another purpose of an embodiment of the present application is to provide a ship that uses the above-mentioned large-scale assembly and installation method of curved outer plates of a ship to install outer plates.

[0006] In a first aspect, a method for assembling and installing a curved outer plate of a ship is provided, wherein a rib frame and a longitudinal girders have been hoisted in the ship, and the curved outer plate is installed in contact with the rib frame, comprising:

[0007] Pre-cutting the outer panels that need to be opened into a plurality of curved outer panels, so that the plurality of curved outer panels form an outer panel with openings after large assembly, and the openings are used to arrange the thrusters; the plurality of curved outer panels are divided into an upper thruster segment outer panel and a lower thruster segment outer panel, wherein the upper thruster segment outer panel includes a bottom outer panel and a plurality of edge outer panels, and the lower thruster segment outer panel includes a plurality of outer panels with openings;

[0008] When the outer plate of the upper section of the thruster is assembled, the bottom outer plate is installed first, and the center line in the bow and stern direction and multiple rib position lines are marked on the bottom outer plate, so that the center line in the bow and stern direction coincides with the longitudinal girder in the hull, and the multiple rib position lines coincide with the rib frame, so as to complete the installation of the bottom outer plate; then multiple outer edge outer plates are installed, and the first platform line is marked at the transverse predetermined position of each edge outer plate, and multiple first rib position lines are marked longitudinally, so that the first platform lines of multiple edge outer plates are aligned, and the multiple first rib position lines of each edge outer plate coincide with the rib frame, so as to complete the assembly of the outer plate of the upper section of the thruster;

[0009] When the outer panels of the lower sections of the side pusher are assembled, second platform lines are marked at predetermined transverse positions of multiple perforated outer panels of the lower sections of the side pusher, and multiple second rib position lines are marked in the longitudinal direction of each perforated outer panel; the second platform lines of the multiple perforated outer panels are aligned, and the multiple second rib position lines of each perforated outer panel coincide with the rib frame, so as to complete the assembly of the outer panels of the lower sections of the side pusher;

[0010] The outer plate of the upper thruster section is buckled onto the outer plate of the lower thruster section, the rib number bulkhead plates of the two sections are aligned in the vertical direction, and the height difference between the first platform line and the second platform line is controlled to be within the theoretical value in the horizontal direction, so as to complete the large assembly of the curved outer plate of the ship.

[0011] In one embodiment, the first platform line and multiple first rib position lines are marked on the outer plate of the upper section of the side thruster, and the second platform line and multiple second rib position lines are marked on the outer plate of the lower section of the side thruster with a marking accuracy of less than or equal to 1 mm.

[0012] In one embodiment, after completing the large-scale assembly of the outer plate of the upper section of the thruster, it also includes establishing a three-dimensional model of the upper section of the thruster, and establishing a three-dimensional coordinate system in the three-dimensional model, collecting the actual coordinates of the predetermined measurement points, and comparing the actual coordinates with the theoretical coordinates in the three-dimensional model to control the large-scale assembly accuracy.

[0013] In one embodiment, the predetermined measurement points include:

[0014] The intersection of the bow and stern centerline of the thruster upper section with the first rib numbered bulkhead plate and the intersection of the first platform line with the first rib numbered bulkhead plate.

[0015] In one embodiment, the actual coordinates of the predetermined measurement points are collected using a total station.

[0016] In one embodiment, after the outer plate of the lower thrust section is assembled and installed, the method also includes hoisting and positioning the thruster, aligning the thruster with the designated rib position number, making the center line of the thruster body located in the center plane of the lower thrust section, and the height difference between the center line of the thruster body and the second platform line is within the theoretical value.

[0017] According to a second aspect of the present application, there is also provided a ship, comprising a plurality of curved outer plates, wherein the plurality of curved outer plates are installed using the large assembly installation method for curved outer plates of a ship described in any one of the implementation schemes in the first aspect.

[0018] The large assembly and installation method of the curved outer plate of a ship in the present application has the following beneficial effects:

[0019] The present invention pre-opens holes in the outer panels, positions and installs the curved outer panels, and realizes the process of segmented construction and large-scale assembly production by loose hanging of the curved outer panels without margins, and the upper and lower layers of the segments are assembled and accurately positioned and installed to show the precision control effect. The present invention simplifies the construction process, reduces the difficulty of construction, reduces the height work, and achieves precision control effects. In addition, the segmented construction of the outer panels without margins and forward opening of holes comprehensively realizes safe production and improved production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the installation of an outer plate of an upper section of a side thruster according to an embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of the installation of a side thrust lower section outer plate according to an embodiment of the present application;

[0023] Figure 3 It is a schematic diagram of installing a large assembly of curved outer panels according to an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the structure of a perforated outer panel according to an embodiment of the present application.

[0025] 100, thruster upper section outer plate; 110, bottom outer plate; 120, middle outer plate; 130, edge outer plate; 131, edge outer plate a; 132, edge outer plate b; 133, edge outer plate c; 134, edge outer plate d; 140, first rib position bulkhead plate; 200, thruster lower section outer plate; 210, perforated outer plate; 211, perforated outer plate a; 212, perforated outer plate b; 213, perforated outer plate c; 2131, second rib position line; 214, perforated outer plate d; 215, perforated outer plate e; 220, second rib position bulkhead plate; 230, center plane; 300, tire frame; 310, first platform line; 320, second platform line; 400, thruster. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0028] In the first aspect, the present application provides a method for assembling and installing a large curved outer plate of a ship. A rib frame, a longitudinal girder, and various parts and other structures have been hoisted inside the outer plate. The curved outer plate is installed in contact with the rib frame. The specific installation steps are as follows:

[0029] The outer panel that needs to be opened with holes is pre-cut into multiple curved outer panels, so that the multiple curved outer panels constitute an outer panel with holes after large assembly, and the holes are used to arrange the side thruster 400; the multiple curved outer panels are divided into an upper section outer panel 100 of the side thruster and a lower section outer panel 200 of the side thruster, wherein the upper section outer panel 100 of the side thruster includes a bottom outer panel 110, an intermediate outer panel 120 and multiple edge outer panels 130, and the lower section outer panel 200 of the side thruster includes multiple outer panels with holes 210.

[0030] When the thrust upper segment outer plate 100 is assembled, the bottom outer plate 110 is first installed on the tire frame 300, and the center line and multiple rib position lines are marked on the bottom outer plate 110, so that the center line coincides with the middle longitudinal girder, and the multiple rib position lines coincide with the rib frame, so as to complete the installation of the bottom outer plate 110; then the middle outer plate 120 and multiple edge outer plates 130 are installed, and the first platform line 310 is marked at the predetermined transverse position of each edge outer plate 130, and multiple first rib position lines are marked longitudinally, see Figure 1 The plurality of edge outer panels 130 include edge outer panel a, edge outer panel b, edge outer panel c and edge outer panel d. The first platform lines 310 of the plurality of edge outer panels 130 are aligned, and the plurality of first rib position lines of each edge outer panel 130 overlap with the rib frame to complete the assembly of the thruster upper segment outer panel 100. The thruster upper segment outer panel 100 is sequentially hoisted to the corresponding position for positioning and assembly to form the curved outer panel opening shape of the thruster 400, and there is no need to survey the margin line and open holes on site.

[0031] When the side thrust lower section outer plate 200 is assembled, a second platform line 320 is drawn at a predetermined transverse position of a plurality of perforated outer plates 210 of the side thrust lower section outer plate 200, and a plurality of second rib position lines are drawn in the longitudinal direction of each perforated outer plate 210. Figure 4 The schematic diagram of the structure of a perforated outer panel according to an embodiment of the present application is shown. The plurality of perforated outer panels 210 include perforated outer panel a, perforated outer panel b, perforated outer panel c, perforated outer panel d and perforated outer panel e, so that the second platform lines 320 of the plurality of perforated outer panels 210 are aligned, and the plurality of second rib position lines of each perforated outer panel 210 overlap with the rib frame to complete the assembly of the side push lower segment outer panel 200.

[0032] The upper outer plate 100 of the side thruster is buckled onto the lower outer plate 200 of the side thruster. Figure 3 FIG. 1 is a schematic diagram of an installation of a large curved outer panel assembly according to an embodiment of the present application, see Figure 3, align the first rib position bulkhead plate 140 and the second rib position bulkhead plate 220 in the vertical direction, and control the height difference between the first platform line 310 and the second platform line 320 in the horizontal direction to be within the theoretical value, so as to complete the large assembly of the ship's curved outer plate. Specific operation: the first center line of the upper thruster segment outer plate 100 is aligned with the second center line of the lower thruster segment outer plate 200, the bow and stern directions are vertically aligned by the first rib position bulkhead plate 140 and the second rib position bulkhead plate 220, and the upper and lower height directions are positioned with the relative difference of 2592mm (5192mm-2600mm) from the second platform line (5192 platform line) to the first platform line (2600 platform line), and finally the four large circular hole curved outer plates corresponding to the two bow and stern thrusters are welded with the watermelon peel outer plate of the circular part to realize the operation mode of cutting and opening the curved outer plate without margin, and finally complete the ship's block construction process technology and quality requirements.

[0033] During the above implementation process, by marking the positioning line on the pre-cut outer plate, and then quickly and accurately positioning the curved outer plate, the two sections respectively present the shape of the side-pushed outer plate openings with no excess, realizing the rapid assembly and precise positioning of the two-layer sections without cutting the outer plate, and there is no need to mark the excess line and open the holes on site.

[0034] In one embodiment, in order to meet the construction accuracy requirements, the first platform line 310 and multiple first rib position lines are marked on the outer plate 100 of the upper thrust section, and the second platform line 320 and multiple second rib position lines are marked on the outer plate 200 of the lower thrust section with an accuracy of less than or equal to 1mm. The main dimension accuracy of the segment assembly is controlled to be ±5mm. The center line of the two thruster bodies and the center line of the upper and lower thruster segment outer plates are controlled to be within 3mm; the overall horizontal accuracy of the segment is controlled to be ±5mm and the accuracy of the intersection of the curved outer plates is controlled to be ±2mm.

[0035] In one implementation, in order to improve and control the accuracy of segmented construction, after the outer plate of the upper thruster segment is assembled, the three-dimensional model of the upper thruster segment is established using the Sanming G3 software, and a three-dimensional coordinate system is established in the three-dimensional model. The X, Y, and Z data of the three-dimensional coordinate system must be consistent with the measured data collected by the on-site total station. The actual coordinate values ​​of the predetermined measurement points are collected, and the actual coordinate values ​​are compared with the theoretical coordinate values ​​in the three-dimensional model. Finally, it is determined that the curved outer plate is scattered and assembled using the survey reference line and combined with the Sanming G3 software analysis to draw conclusions, so that the segmented construction can achieve the shipbuilding quality with speed and accuracy to meet the requirements of precision control.

[0036] With reference to the three-dimensional modeling of the thruster upper section outer plate 100, the present application also includes the precision control of the three-dimensional modeling of the thruster lower section outer plate 200 after the large assembly, and the precision control of the three-dimensional modeling of the entire outer plate after the large assembly of the curved outer plate of the ship is completed, which will not be repeated here.

[0037] In the above implementation process, the control method adopted for the precise installation in the large-scale assembly stage of the segments was collected through on-site measurement, and then the segment model theoretical data was analyzed and compared with the actual measurement data using the Sanming G3 software through computer equipment. Finally, the precise positioning accuracy of the curved outer panels in the segment construction process technology and the rapid positioning accuracy of the segment assembly were determined by the data to show its precision control effect.

[0038] In one embodiment, several core position points are selected as predetermined measurement points, including: the intersection of the first center line in the bow and stern directions of the thruster upper section and the first rib numbered bulkhead plate 140 and the intersection of the first platform line 310 and the first rib numbered bulkhead plate 140 as measurement points for coordinate collection.

[0039] In one embodiment, the actual coordinates of the predetermined measurement points are collected using a total station.

[0040] In one embodiment, after the outer plate of the lower thruster section is assembled and installed, it also includes hoisting and positioning the thruster 400, aligning the thruster 400 with the designated rib number, so that the center line of the thruster 400 body is located within the center plane 230 of the lower thruster section, and the height difference between the center line of the thruster body and the second platform line 320 is within the theoretical value. For example: when hoisting the FR389 stern thruster and the FR395 bow thruster, they are hoisted into the 5192 platform section for positioning, the center line of the thruster body is aligned with the center line of the section structure, and the rib numbers FR389 and FR395 of the section structure are aligned, and the height direction is controlled by the height difference between the thruster center 2900A / B and the second platform line (5192 platform) theoretical line, and the focus is on controlling the horizontality of the flange area on the two side thruster equipment.

[0041] In a second aspect, the present application further provides a ship, comprising a plurality of curved outer plates, wherein the plurality of curved outer plates are positioned and installed using the large assembly installation method for curved outer plates of a ship as described in any one of the implementation schemes in the first aspect.

[0042] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for assembling and installing a large curved outer plate of a ship, wherein a rib frame and a longitudinal girders have been hoisted in the ship, and the curved outer plate is installed in contact with the rib frame, characterized in that: include: Pre-cutting the outer panels that need to be opened into a plurality of curved outer panels, so that the plurality of curved outer panels form an outer panel with openings after large assembly, and the openings are used to arrange the thrusters; the plurality of curved outer panels are divided into an upper thruster segment outer panel and a lower thruster segment outer panel, wherein the upper thruster segment outer panel includes a bottom outer panel and a plurality of edge outer panels, and the lower thruster segment outer panel includes a plurality of outer panels with openings; When the outer plate of the upper section of the thruster is assembled, the bottom outer plate is installed first, and the center line in the bow and stern direction and multiple rib position lines are marked on the bottom outer plate, so that the center line in the bow and stern direction coincides with the middle longitudinal girder, and the multiple rib position lines coincide with the rib frame, so as to complete the installation of the bottom outer plate; then multiple outer edge outer plates are installed, and the first platform line is marked at the transverse predetermined position of each edge outer plate, and multiple first rib position lines are marked longitudinally, so that the first platform lines of multiple edge outer plates are aligned, and the multiple first rib position lines of each edge outer plate coincide with the rib frame, so as to complete the assembly of the outer plate of the upper section of the thruster; When the outer panels of the lower sections of the side pusher are assembled, second platform lines are marked at predetermined transverse positions of multiple perforated outer panels of the lower sections of the side pusher, and multiple second rib position lines are marked in the longitudinal direction of each perforated outer panel; the second platform lines of the multiple perforated outer panels are aligned, and the multiple second rib position lines of each perforated outer panel coincide with the rib frame, so as to complete the assembly of the outer panels of the lower sections of the side pusher; The outer plate of the upper thruster section is buckled onto the outer plate of the lower thruster section, the rib number bulkhead plates of the two sections are aligned in the vertical direction, and the height difference between the first platform line and the second platform line is controlled to be within the theoretical value in the horizontal direction, so as to complete the large assembly of the curved outer plate of the ship.

2. The large assembly and installation method of curved outer plate of a ship according to claim 1, characterized in that: The first platform line and a plurality of first rib position lines are marked on the outer plate of the upper section of the side thruster, and the second platform line and a plurality of second rib position lines are marked on the outer plate of the lower section of the side thruster with a marking accuracy of less than or equal to 1 mm.

3. The large assembly and installation method of curved outer plate of a ship according to claim 1, characterized in that: After completing the assembly of the outer plate of the upper section of the thruster, it also includes establishing a three-dimensional model of the upper section of the thruster, and establishing a three-dimensional coordinate system in the three-dimensional model, collecting the actual coordinates of the predetermined measuring points, and comparing the actual coordinates with the theoretical coordinates in the three-dimensional model to control the assembly accuracy.

4. The large assembly and installation method of curved outer plate of a ship according to claim 3, characterized in that: The predetermined measurement points include: The intersection of the bow and stern centerline of the thruster upper section with the first rib numbered bulkhead plate and the intersection of the first platform line with the first rib numbered bulkhead plate.

5. The large assembly and installation method of curved outer plate of a ship according to claim 4, characterized in that: The actual coordinates of the predetermined measurement points are collected using a total station.

6. The large assembly and installation method of curved outer plate of a ship according to claim 1, characterized in that: After the outer plate of the lower section of the thruster is assembled and installed, the method also includes hoisting and positioning the thruster, aligning the thruster with the designated rib position number, making the center line of the thruster body located in the center plane of the lower section of the thruster, and the height difference between the center line of the thruster body and the second platform line is within the theoretical value.

7. A ship, characterized in that: It comprises a plurality of curved outer plates, which are positioned and installed by using the large assembly and installation method for curved outer plates of a ship as described in any one of claims 1 to 6.

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