Curved surface segment transportation method

Abstract

The invention discloses a curved-surface segment transportation method, which is characterized in that curved-surface segments are manufactured on a specially-made supporting jig frame, and the curved-surface segments and the supporting jig frame are integrally placed on a portal frame, so that the problem that the curved-surface segments deform due to loss of original rigid support after the curved-surface segments are placed on the portal frame is effectively solved; according to the method, the tire removal procedure after the curved surface segments are manufactured and the linear correction procedure after the subsequent curved surface segments are placed on the portal frame are omitted, the construction procedure of the curved surface segments is simplified, the efficiency of constructing the curved surface segments in batches is improved, the supporting tire frame can be repeatedly used, and the production and construction cost of enterprises is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a curved surface segment transportation method. Background Art

[0002] Ships can be divided into a central parallel midbody section and bow and stern curved sections according to their external lines. Curved sections are usually made by combining curved segments with the main body of the section. The production of curved segments is relatively difficult, which is mainly reflected in the control of the outer plate line of the curved segments.

[0003] The current method for making curved surface segments is to make a curved frame through active support columns or linear plates, then hoist the outer panels with curved lines onto the curved frame, weld the outer panel joints to make the curved surface segments form complete linear outer panels, and then hoist the structural frame on top. After welding, the complete segments are formed, hoisted and placed on the portal frame, waiting to be further closed into the segment. This traditional method is effective for solving some curved surface segments with simple linear changes. Even if the curved surface segments are placed on the portal frame for a period of time, the overall deformation is not large. However, when facing curved surface segments with variable linear shapes, the curvature of the segments will change greatly after being placed for a period of time, resulting in a lot of time required to correct the linear shape after closing them onto the segment, affecting the segment production cycle. Summary of the invention

[0004] In view of this, the present invention provides a method for transporting curved surface segments, which is used to solve the problem that the curvature of curved surface segments with variable linear shapes will change after being placed on a door frame, resulting in a large amount of work hours required for linear correction during subsequent closure.

[0005] A surface segment transportation method comprises the following steps:

[0006] S1, making a supporting frame according to the outer plate line shape of the curved surface segment;

[0007] The tire support frame includes a horizontal frame, a plurality of support columns of different lengths vertically fixed on the horizontal frame and distributed in a matrix, and a linear tire plate fixed on the top of the support column, the linear shape of the linear tire plate matches the linear shape of the outer plate of the curved surface segment, and a plurality of hanging brackets are fixed on the horizontal frame;

[0008] S2, placing multiple curved outer plates in sequence on the linear tire plate supporting the tire frame to form curved surface segments, and alternately performing positive and negative tack welding at the position where the curved outer plate contacts the linear tire plate after each curved outer plate is placed;

[0009] S3, connecting the hook of the lifting equipment to the lifting bracket of the supporting frame, and hanging the supporting frame supporting the curved surface segment onto the gantry;

[0010] S4, welding and fixing the horizontal frame supporting the tire frame to the door frame;

[0011] S5, lift the gantry by means of transport equipment to transport the curved surface segments to the yard, waiting for subsequent closure and use;

[0012] S6, after the main body of the outer plate segment is completed, the curved surface segments are transported from the yard to the workshop using transportation equipment, the temporary spot welds between the linear tire plate and each curved outer plate are cut off, the curved surface segments are lifted off the supporting tire frame and folded onto the main body of the outer plate segment.

[0013] Preferably, in step S2, when the outer plate and the linear tire plate are tack welded, the distances between two adjacent tack welding points are equal.

[0014] Preferably, in step S2, when the outer plate and the linear tire plate are tack-welded, the distance between the previous front tack welding spot and the next rear tack welding spot is 2m.

[0015] Preferably, the support columns located at the same longitudinal position are also connected by a longitudinal connecting plate.

[0016] Preferably, the hanging brackets are arranged at the four corners of the horizontal frame.

[0017] Preferably, the horizontal frame is a grid-type frame, and the distance between two adjacent supporting columns in the transverse direction is smaller than the distance between two adjacent supporting columns in the longitudinal direction.

[0018] Preferably, the spacing between two adjacent supporting columns in the transverse direction is half of the spacing between two adjacent supporting columns in the longitudinal direction.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention manufactures curved surface segments on a special supporting frame and places the curved surface segments and the supporting frame as a whole on a portal frame, thereby effectively solving the problem of deformation of the curved surface segments due to loss of original rigid support after the curved surface segments are placed on the portal frame. In addition, the present method omits the process of removing the curved surface segments after they are manufactured and the process of correcting the linear shape of the subsequent curved surface segments after they are placed on the portal frame, thereby simplifying the construction process of the curved surface segments and improving the efficiency of mass construction of the curved surface segments. In addition, the supporting frame can be reused, thereby reducing the production and construction costs of the enterprise.

[0021] 2. The present invention places the curved surface segment and the supporting frame as a whole on the portal frame. Since the supporting point of the curved surface segment does not change, compared with the solution of directly placing the curved surface segment on the portal frame, the supporting surface of the curved surface segment is larger and the curved surface segment will not be deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the tire support frame.

[0024] Figure 2 It is a schematic diagram of a support frame supporting a surface segment.

[0025] Figure 3 It is a schematic diagram of hoisting the supporting tire frame and the curved surface segment as a whole onto the door frame.

[0026] The meanings of the numbers in the figure are:

[0027] 1 is a horizontal frame, 2 is a supporting column, 3 is a linear tire plate, 4 is a longitudinal connecting plate, 5 is a curved segment, and 6 is a door frame. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0029] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0030] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0031] The present invention provides a curved surface segment transportation method, which specifically comprises the following steps:

[0032] S1, make a supporting frame according to the outer plate line shape of the curved surface segment.

[0033] The supporting tire frame includes a horizontal frame 1, a plurality of supporting columns 2 of different lengths vertically fixed on the horizontal frame 1 and distributed in a matrix, and a linear tire plate 3 fixed on the top of the supporting columns 2, the line shape of the linear tire plate 3 matches the line shape of the outer plate of the curved surface segment, and a plurality of hanging weights are fixed on the horizontal frame 1, and the arrangement positions of the plurality of hanging weights should be able to ensure the hoisting balance and stability when the curved surface segment is hoisted.

[0034] Preferably, the hanging brackets are arranged at the four corners of the horizontal frame 1 .

[0035] The horizontal frame 1 is a grid-type frame, and the length and width of the horizontal frame 1 are set according to the length and width of the orthographic projection of the curved surface segment on the horizontal plane. The supporting columns 2 are vertically fixed on the horizontal frame 1 at equal intervals in the horizontal and vertical directions, and the distance between two adjacent supporting columns 2 in the horizontal direction is smaller than the distance between two adjacent supporting columns 2 in the vertical direction.

[0036] Preferably, the distance between two adjacent supporting columns 2 in the transverse direction is half of the distance between two adjacent supporting columns 2 in the longitudinal direction.

[0037] In this embodiment, the horizontal frame 1 is a 1m*1m mesh grid steel frame structure. Setting its single grid to 1m*1m can effectively ensure the overall structural strength of the horizontal frame, and also determines the arrangement density of the supporting columns 2.

[0038] In this embodiment, the distance between two adjacent support columns 2 in the transverse direction is 0.5 m, and the distance between two adjacent support columns 2 in the longitudinal direction is 1 m.

[0039] Preferably, the support columns 2 located at the same longitudinal position are also connected by a longitudinal connecting plate 4 to ensure the longitudinal stability of the overall structure of the supporting tire frame.

[0040] The linear tire plate 3 is composed of a plurality of steel strips, the linear shape of the steel strips is made according to the outer shape curve of the curved surface segment 5, and the linear tire plate 3 is welded and fixed to the supporting column 2 at its bottom.

[0041] S2, placing the supporting tire frame on a flat ground, placing multiple curved outer plates in sequence on the linear tire plate 3 of the supporting tire frame to splice them into curved segments, and performing positive and negative positioning welding alternately at the position where the curved outer plate contacts the linear tire plate each time a curved outer plate is placed, so that the curved outer plate and the linear tire plate are tightly fixed together.

[0042] When performing tack welding, the distance between two adjacent tack welding spots is equal. In this embodiment, the spacing between the front tack welding spot and the rear back tack welding spot is 2m.

[0043] S3, connecting the hook of the lifting equipment to the hanging code of the supporting frame, and hanging the supporting frame supporting the curved surface segment onto the door frame (that is, the curved surface segment and the supporting frame are hung together as a whole and placed on the door frame).

[0044] S4, welding and fixing the outer circle of the horizontal frame supporting the tire frame to the door frame.

[0045] S5, lift the gantry by means of transport equipment (such as a flatbed truck, a crane, etc.) to transport the curved surface segment to a storage yard, waiting for subsequent closure and use.

[0046] S6, after the main body of the outer plate segment is completed, the curved segment 5 is transported from the yard to the workshop by means of transportation equipment, the temporary spot welds between the linear tire plate 3 and each curved outer plate are cut off, the curved segment is lifted off the supporting tire frame and folded onto the main body of the outer plate segment.

[0047] It should be clear that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A surface segment transportation method, characterized in that: The specific steps include: S1, making a supporting frame according to the outer plate line shape of the curved surface segment; The tire support frame includes a horizontal frame, a plurality of support columns of different lengths vertically fixed on the horizontal frame and distributed in a matrix, and a linear tire plate fixed on the top of the support column, the linear shape of the linear tire plate matches the linear shape of the outer plate of the curved surface segment, and a plurality of hanging brackets are fixed on the horizontal frame; S2, placing multiple curved outer plates in sequence on the linear tire plate supporting the tire frame to form curved surface segments, and alternately performing positive and negative tack welding at the position where the curved outer plate contacts the linear tire plate after each curved outer plate is placed; S3, connecting the hook of the lifting equipment to the lifting bracket of the supporting frame, and hanging the supporting frame supporting the curved surface segment onto the gantry; S4, welding and fixing the horizontal frame supporting the tire frame to the door frame; S5, lift the gantry by means of transport equipment to transport the curved surface segments to the yard, waiting for subsequent closure and use; S6, after the main body of the outer plate segment is completed, the curved surface segments are transported from the yard to the workshop using transportation equipment, the temporary spot welds between the linear tire plate and each curved outer plate are cut off, the curved surface segments are lifted off the supporting tire frame and folded onto the main body of the outer plate segment.

2. The curved surface segment transportation method according to claim 1, characterized in that: In step S2, when the outer plate and the linear tire plate are tack welded, the distances between two adjacent tack welding points are equal.

3. The curved surface segment transportation method according to claim 2, characterized in that: In step S2, when the outer plate and the linear tire plate are tack welded, the distance between the previous front tack welding spot and the next back tack welding spot is 2m.

4. The curved surface segment transportation method according to claim 1, characterized in that: The supporting columns located at the same longitudinal position are also connected via a longitudinal connecting plate.

5. The curved surface segment transportation method according to claim 1, characterized in that: The hanging brackets are arranged at the four corners of the horizontal frame.

6. The curved surface segment transportation method according to claim 1, characterized in that: The horizontal frame is a grid-type frame, and the distance between two adjacent support columns in the transverse direction is smaller than the distance between two adjacent support columns in the longitudinal direction.

7. The curved surface segment transportation method according to claim 6, characterized in that: The distance between two adjacent support columns in the transverse direction is half of the distance between two adjacent support columns in the longitudinal direction.

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