Anti-deformation stacking and hoisting method for hull sheet structures

Abstract

The invention discloses a hull sheet structure anti-deformation stacking and hoisting method which specifically comprises the following steps that S1, the types of hull sheet structures are determined, and the types of the hull sheet structures comprise a low-grade sheet structure and a high-grade sheet structure; s2, low-grade thin plate structures are stacked and hoisted, flat-bulb steel is arranged on one sides of low-grade thin plates, and the low-grade thin plates are placed on a low-grade plate rack to be stacked; s3, high-grade thin plate structures are stacked and hoisted, flat-bulb steel is arranged on one side of each high-grade thin plate, and the high-grade thin plates are placed on a high-grade plate rack to be stacked; and S4, when the low-grade thin plate structure and the high-grade thin plate structure are hoisted, hoisting and conveying of the plate material frame are conducted through the lifting lugs on the low-grade plate material frame and the lifting lugs on the high-grade thin plate structure, and hoisting and conveying of different thin plate structures are completed. According to the method, the thin plate is horizontally arranged to be vertically or obliquely arranged, and deformation of the horizontally-arranged thin plate is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a method for stacking and hoisting a thin plate structure of a hull to prevent deformation. Background Art

[0002] During the shipbuilding process, welding is a very common job, and welders are also the most common type of workers in shipyards. Welding, also known as fusion welding, is a manufacturing process and technology that combines metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. Fusion welding is a very common welding method. It refers to heating the workpieces to be joined to partially melt them to form a molten pool. After the molten pool cools and solidifies, it is joined. If necessary, molten fillers can be added to assist. Fusion welding is suitable for welding of various metals and alloys. It does not require pressure, but it will cause high temperature and high heat deformation, especially for thin steel plates, which are particularly prone to deformation. In addition, after processing and welding, many steel plates need to be stacked for a period of time as components and parts before spot welding and installation. These thin plate components and parts are easily deformed due to irregular stacking and hoisting at the shipyard site. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art and to provide a method for stacking and lifting a thin plate structure to prevent deformation of the thin plate. The method of the present invention avoids deformation of the horizontally placed thin plate by setting the thin plate from being placed horizontally to being placed vertically or inclined.

[0004] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0005] A method for stacking and hoisting a thin plate structure to prevent deformation of a hull, the method specifically comprising the following steps:

[0006] S1, determining the type of the hull thin plate structure, and performing different stacking forms according to different hull thin plate structures. The types of the hull thin plate structure include low-grade thin plate structure and high-grade thin plate structure;

[0007] S2, stacking and hoisting of low-grade thin plate structure, setting a bulb flat steel on one side of the low-grade thin plate, after the bulb flat steel is set, the low-grade thin plate is placed on the low-grade plate rack for stacking, and the low-grade thin plate is placed vertically;

[0008] S3, high-grade thin plate structure stacking and hoisting, set the bulb flat steel on one side of the high-grade thin plate, after the bulb flat steel is set, place the high-grade thin plate on the high-grade plate rack for stacking, and the high-grade thin plate is placed on the high-grade plate rack at an angle;

[0009] S4, when the low-grade thin plate structure and the high-grade thin plate structure are hoisted, the plate rack is hoisted and transported through the lifting ears on the low-grade plate rack and the lifting ears on the high-grade thin plate structure to complete the hoisting of different thin plate structures.

[0010] Furthermore, when the height of the thin plate is not higher than 1500 mm, the thin plate type is a low-grade thin plate structure, and when the height of the thin plate is between 1500 and 3000 mm, the thin plate type is a high-grade thin plate structure.

[0011] Furthermore, the low-grade sheet material rack includes a base and an isolation baffle, a plurality of isolation baffles are arranged on the base, the base as a whole is a rectangular frame structure, channel steel is arranged inside the base frame for fixing, the midpoint of each side of the base frame is connected and fixed in sequence by channel steel, and a cross-shaped channel steel is also arranged inside the base frame for connection and fixing.

[0012] Furthermore, the isolation baffle is square as a whole, and is symmetrically arranged on the frames on the front and rear sides of the base. The frames on the left and right sides of the base frame are provided with ears. The spacing between adjacent isolation baffles on the base frame is 20-30mm, the height of the isolation baffle is 400-500mm, the width of the isolation baffle is 70mm, and the isolation baffle is vertically connected and fixed to the base frame.

[0013] Furthermore, the low-grade thin plate is installed between the spacings of the isolation baffles, and two parallel bulb flat steels are arranged on one side of the low-grade thin plate. When the low-grade thin plate is installed on the low-grade plate material rack, the bulb flat steels on the low-grade thin plate are above the isolation baffles.

[0014] Furthermore, the high-end sheet material rack includes a high-end base, a support frame and a limit plate. The high-end base is provided with a support frame and a limit plate, and the support frame and the limit plate are arranged alternately. The high-end base as a whole is a square frame, and the high-end base frame has transverse and longitudinal fixed channel steels, and the limit plates are symmetrically arranged on the frames on the front and rear sides of the base. The support frame arranged on the base is parallel to the frames on the left and right sides of the base, and the bottom of the support frame is vertically fixedly connected to the frames on the front and rear sides of the base and the transverse fixed channel steels.

[0015] Furthermore, the limiting plate is square as a whole, the height of the limiting plate is 400-500mm, the width of the limiting plate is 70mm, the support frame is arranged on the high-grade base at intervals of 400mm, the spacing between the support frame and the adjacent limiting plate is 300mm, and a high-grade thin plate is placed between adjacent support frames and limiting plates.

[0016] Furthermore, three parallel ball flat steels are installed on one side of the high-end thin plate, the lower end of the high-end thin plate is against the lower end of the limiting plate, the upper end of the high-end thin plate is placed on the upper end of the support frame, and the high-end thin plate is placed at an angle. When the high-end thin plate is placed between the support frame and the limiting plate, the ball flat steels on the high-end thin plate are all set above the limiting plate.

[0017] Based on the above technical solution, the present invention's patented method for stacking and hoisting a thin ship plate structure to prevent deformation has achieved the following technical advantages through practical application:

[0018] 1. The present invention provides a method for stacking and lifting thin plate structures to prevent deformation of the hull. Thin plates are placed on low-grade plate racks and high-grade plate racks, so thin plate components can be stacked very conveniently, thereby avoiding secondary deformation caused by the deadweight of the thin plate components during long-term stacking and secondary deformation caused by improper placement during transportation and lifting.

[0019] 2. The present invention provides a method for stacking and hoisting a thin plate structure for preventing deformation of the thin plate by changing the thin plate from being placed horizontally to being placed vertically or inclined. This prevents the thin plate from being deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a diagram of a low-grade thin plate placement structure in a method for stacking and hoisting a thin plate structure to prevent deformation of a hull.

[0021] Figure 2 The present invention is a top view of a low-grade thin plate material rack in a method for stacking and hoisting a thin plate structure to prevent deformation of a hull.

[0022] Figure 3 The present invention discloses a high-grade thin plate placement structure diagram in a method for stacking and hoisting a thin plate structure for preventing deformation of a hull.

[0023] Figure 4 The invention discloses a top view of a high-grade plate material rack in a method for stacking and hoisting a thin plate structure for preventing deformation of the ship hull.

[0024] Figure 5 It is a side view of a high-grade plate rack in a method for stacking and hoisting a thin plate structure for preventing deformation of the present invention.

[0025] Figure 6 The present invention is a diagram for setting low-grade thin plate bulb flat steel in a method for stacking and hoisting a thin plate structure to prevent deformation of a hull.

[0026] Figure 7 The present invention is a diagram of the arrangement of high-grade thin plate bulb flat steel in a method for stacking and hoisting a thin plate structure to prevent deformation of a hull. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific examples 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.

[0028] like Figure 1-7 The present invention relates to a method for stacking and hoisting a thin plate structure to prevent deformation of a hull, and the method specifically comprises the following steps:

[0029] S1, determining the type of the hull thin plate structure, and performing different stacking forms according to different hull thin plate structures, the hull thin plate structure types including low-grade thin plate 1 structure and high-grade thin plate 5 structure;

[0030] S2, stacking and hoisting of the low-grade thin plate 1 structure, setting the bulb flat steel 11 on one side of the low-grade thin plate 1, after the bulb flat steel 11 is set, the low-grade thin plate 1 is placed on the low-grade plate rack for stacking, and the low-grade thin plate 1 is placed vertically;

[0031] S3, high-grade thin plates 5 are stacked and hoisted, a bulb flat steel 11 is set on one side of the high-grade thin plates 5, and after the bulb flat steel 11 is set, the high-grade thin plates 5 are placed on the high-grade plate rack for stacking, and the high-grade thin plates 5 are placed obliquely on the high-grade plate rack;

[0032] S4, when the low-grade thin plate 1 structure and the high-grade thin plate 5 structure are hoisted, the plate rack is hoisted and transported through the lifting ears 4 on the low-grade plate rack and the lifting ears 4 on the high-grade plate 5 structure to complete the hoisting of different thin plate structures.

[0033] When the height of the thin plate is not higher than 1500mm, the thin plate type is a low-grade thin plate 1 structure, and when the height of the thin plate is between 1500-3000mm, the thin plate type is a high-grade thin plate 5 structure.

[0034] The low-grade sheet material rack includes a base 21 and an isolation baffle 22. A plurality of isolation baffles 22 are arranged on the base 21. The base 21 as a whole is a rectangular frame structure. Channel steels 3 are arranged inside the frame of the base 21 for fixing. The midpoints of each side of the frame of the base 21 are connected and fixed in sequence through the channel steels 3. A cross-shaped channel steel 3 is also arranged inside the frame of the base 21 for connection and fixing.

[0035] The isolation baffle 22 is square as a whole, and is symmetrically arranged on the frames on the front and rear sides of the base 21. The frames on the left and right sides of the base 21 are provided with ears 4. The spacing between adjacent isolation baffles 22 on the base 21 frame is 20-30mm, the height of the isolation baffle 22 is 400-500mm, the width of the isolation baffle 22 is 70mm, and the isolation baffle 22 is vertically connected and fixed to the base 21 frame.

[0036] The low-grade thin plate 1 is installed between the spacings of the isolation baffle 22 , and two parallel bulb flat steels 11 are arranged on one side of the low-grade thin plate 1 . When the low-grade thin plate 1 is installed on the low-grade plate material rack, the bulb flat steels 11 on the low-grade thin plate 1 are above the isolation baffle 22 .

[0037] The high-end sheet material rack includes a high-end base 61, a support frame 62 and a limit plate 63. The high-end base 61 is provided with a support frame 62 and a limit plate 63, and the support frame 62 and the limit plate 63 are arranged alternately. The high-end base 61 is a square frame as a whole. The high-end base 21 has transverse and longitudinal fixed channel steels 3 in the frame, and the limit plates 63 are symmetrically arranged on the frames on the front and rear sides of the base 21. The support frame 62 arranged on the base 21 is parallel to the frames on the left and right sides of the base 21, and the bottom of the support frame 62 is vertically fixedly connected to the frames on the front and rear sides of the base 21 and the transverse fixed channel steel 3; the frames on the left and right sides of the high-end base 61 are provided with lifting ears 4.

[0038] The limiting plate 63 is square in shape as a whole, has a height of 400-500 mm, has a width of 70 mm, and the support frames 62 are arranged on the high-grade base 61 at intervals of 400 mm. The spacing between the support frames 62 and adjacent limiting plates 63 is 300 mm, and a high-grade thin plate 5 is placed between adjacent support frames 62 and limiting plates 63.

[0039] Three parallel bulb flat steels 11 are installed on one side of the high-grade thin plate 5, the lower end of the high-grade thin plate 5 is against the lower end of the limiting plate 63, the upper end of the high-grade thin plate 5 is placed on the upper end of the support frame 62, and the high-grade thin plate 5 is placed at an angle. When the high-grade thin plate 5 is placed between the support frame 62 and the limiting plate 63, the bulb flat steels 11 on the high-grade thin plate 5 are all set above the limiting plate 63.

[0040] By placing thin plates through low-end plate racks and high-end plate racks, thin plate components can be stacked very conveniently, avoiding secondary deformation caused by the dead weight of thin plate components during long-term stacking and secondary deformation caused by improper placement during transportation and lifting.

[0041] In addition to the thin body thickness of high-end thin plate 5 parts, which are easy to deform, they are also relatively high and generally have openings 7 such as doors and windows, so the rigidity in the width direction is worse and it is easier to deform during stacking, transportation and lifting. Figure 7 As shown, when the horizontal flat bulb steel 11 is set for reinforcement, the opening is avoided, and at the same time, the flat bulb steel 11 is set vertically for reinforcement to prevent the thin plate from deforming.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for stacking and hoisting a thin plate structure to prevent deformation of a hull, characterized in that: The method specifically comprises the following steps: S1, determining the type of the hull thin plate structure, and performing different stacking forms according to different hull thin plate structures. The types of the hull thin plate structure include low-grade thin plate structure and high-grade thin plate structure; S2, stacking and hoisting of low-grade thin plate structure, setting a bulb flat steel on one side of the low-grade thin plate, after the bulb flat steel is set, the low-grade thin plate is placed on the low-grade plate rack for stacking, and the low-grade thin plate is placed vertically; S3, high-grade thin plate structure stacking and hoisting, set the bulb flat steel on one side of the high-grade thin plate, after the bulb flat steel is set, place the high-grade thin plate on the high-grade plate rack for stacking, and the high-grade thin plate is placed on the high-grade plate rack at an angle; S4, when the low-grade thin plate structure and the high-grade thin plate structure are hoisted, the plate rack is hoisted and transported through the lifting ears on the low-grade plate rack and the lifting ears on the high-grade thin plate structure to complete the hoisting of different thin plate structures.

2. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 1, characterized in that: When the height of the thin plate is not higher than 1500mm, the thin plate type is a low-grade thin plate structure, and when the height of the thin plate is between 1500-3000mm, the thin plate type is a high-grade thin plate structure.

3. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 1, characterized in that: The low-grade sheet material rack includes a base and an isolation baffle, a plurality of isolation baffles are arranged on the base, the base as a whole is a rectangular frame structure, channel steel is arranged inside the base frame for fixing, the midpoint of each side of the base frame is connected and fixed in sequence by channel steel, and a cross-shaped channel steel is also arranged inside the base frame for connection and fixing.

4. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 3, characterized in that: The isolation baffle is square as a whole and is symmetrically arranged on the frames on the front and rear sides of the base. The frames on the left and right sides of the base frame are provided with lifting ears. The spacing between adjacent isolation baffles on the base frame is 20-30mm. The height of the isolation baffle is 400-500mm. The width of the isolation baffle is 70mm. The isolation baffle is vertically connected and fixed to the base frame.

5. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 4, characterized in that: The low-grade thin plate is installed between the spacings of the isolation baffles. Two parallel bulb flat steels are arranged on one side of the low-grade thin plate. When the low-grade thin plate is installed on the low-grade plate material rack, the bulb flat steels on the low-grade thin plate are above the isolation baffles.

6. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 1, characterized in that: The high-end sheet material rack includes a high-end base, a support frame and a limit plate. The high-end base is provided with a support frame and a limit plate. The support frame and the limit plate are arranged alternately. The high-end base is a square frame as a whole. The high-end base frame has transverse and longitudinal fixed channel steels. The limit plates are symmetrically arranged on the frames on the front and rear sides of the base. The support frame arranged on the base is parallel to the frames on the left and right sides of the base. The bottom of the support frame is vertically fixedly connected to the frames on the front and rear sides of the base and the transverse fixed channel steels.

7. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 6, characterized in that: The limiting plate is square in shape as a whole, has a height of 400-500mm, a width of 70mm, and the support frames are arranged on the high-grade base at intervals of 400mm. The spacing between the support frames and adjacent limiting plates is 300mm, and high-grade thin plates are placed between adjacent support frames and limiting plates.

8. A method for stacking and hoisting a thin ship plate structure to prevent deformation according to claim 7, characterized in that: Three parallel ball flat steels are installed on one side of the high-grade thin plate, the lower end of the high-grade thin plate is against the lower end of the limiting plate, the upper end of the high-grade thin plate is placed on the upper end of the support frame, and the high-grade thin plate is placed at an angle. When the high-grade thin plate is placed between the support frame and the limiting plate, the ball flat steels on the high-grade thin plate are all set above the limiting plate.

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