A disassembly tool for an assembled marine wooden pier trolley and its manufacturing and usage methods

Abstract

The present invention discloses a disassembly tooling for an assembled marine wooden pier trolley, as well as its manufacturing and usage methods. The disassembly tooling for the assembled marine wooden pier trolley includes a scaffolding column, a scaffolding crossbeam, and a chain block. By arranging a lifting lug on the protection pad of the ship bottom outer plate, the chain block of the tooling is connected to the transfer outer plate protection pad. After the marine wooden pier trolley is installed and the hull is stably lifted, the protection pad of the ship bottom outer plate is lifted by the chain block to achieve the disassembly of the marine wooden pier trolley. The disassembly tooling for the marine wooden pier trolley provided by the present invention has the advantages of simple structure, reliable strength, convenient assembly and disassembly, simple manufacturing, low cost, labor-saving and safe. Compared with the tooling for disassembling the wooden pier trolley in other structural forms, the disassembly tooling for the assembled marine wooden pier trolley has stronger practicability and better safety, can be loaded and unloaded and operated in a narrow space, and can ensure that the ship bottom outer plate is not worn when the hull is lifted.

Description

Technical Field

[0001] The present invention belongs to the technical field of shipbuilding, and particularly relates to a disassembly tooling for an assembled marine wooden pier trolley, and a manufacturing and using method thereof. Background Art

[0002] The wooden pier trolley is a crucial process equipment in shipbuilding projects, mainly used for supporting and transporting hull sections. During the shipbuilding process, due to operations such as jacking up the hull and derailing and transporting, it is necessary to disassemble the wooden pier trolley as required. In the on-site implementation process, the piers are heavy and the space is narrow. There are potential hazards such as small working space, heavy load, and instability when using the existing disassembly of the wooden pier trolley. Therefore, it is necessary to develop a supporting special tooling to meet the operation requirements of safely and efficiently assisting in the disassembly of the wooden pier trolley. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a disassembly tooling for an assembled marine wooden pier trolley, and a manufacturing and using method thereof, which is used to safely and efficiently assist in removing the wooden pier trolley, can be loaded, unloaded and operated in a narrow space, easily lift heavy piers, and ensure that the outer bottom plate of the ship is not worn when jacking up the hull. At the same time, it can be removed smoothly, and can provide a reference for the efficient implementation of the operation of disassembling the wooden pier trolley in subsequent shipbuilding.

[0004] The object of the present invention is achieved through the following technical solutions. A disassembly tooling for an assembled marine wooden pier trolley includes a scaffolding column, a scaffolding crossbeam and a chain block.

[0005] Among them, there are 4 pieces of both the scaffolding column and the scaffolding crossbeam. The two ends of the scaffolding crossbeam are rigidly connected to the scaffolding column respectively, forming a square structure.

[0006] A chain block is fixed at the central position of the scaffolding crossbeam. The chain blocks on the four scaffolding crossbeams are symmetrically arranged in space.

[0007] Lifting lugs are arranged at the four ends of the outer bottom plate protection pad of the ship, and the other end of the chain block can be correspondingly connected to the lifting lugs on the outer bottom plate protection pad of the ship.

[0008] Preferably, the scaffolding column and the scaffolding crossbeam are rigidly connected through structural fitting and pin joint.

[0009] Preferably, one end of the chain block is wound and hung through a chain and fixed at the central position of each scaffolding crossbeam.

[0010] Preferably, the scaffold column includes a base, a triangular gusset plate, a first steel pipe, a second steel pipe, and an annular insertion plate. Among them, the first steel pipe is fixed to the base by welding. The bottom of the triangular gusset plate is welded to the base, and the side is welded to the first steel pipe for structural strengthening. Two annular insertion plates are assembled on the first steel pipe, and the second steel pipe is nested at the top of the first steel pipe.

[0011] Preferably, the scaffold crossbeam includes a third steel pipe, a sealing plate, and an ear plate. Among them, two sealing plates are respectively welded to both ends of the third steel pipe, and a pair of ear plates are symmetrically welded to the sealing plates up and down.

[0012] Furthermore, the triangular gusset plate is a flat-angle inclined plate with an arc-shaped cutout. Four symmetrically arranged triangular gusset plates are provided on one base to enhance the stability of the scaffold structure.

[0013] Furthermore, the annular insertion plate is circular, with a through hole matching the first steel pipe opened at the center position. Pin holes for assembling with the scaffold crossbeam are evenly distributed around the annular insertion plate. The shapes of the pin holes include two sizes and are alternately opened.

[0014] Furthermore, the ear plate is a rounded trapezoidal plate with a rectangular pin hole opened on it.

[0015] In addition to providing a disassembly tool for an assembled marine wooden pier trolley, the present invention further provides a manufacturing method for the above-mentioned tool, which specifically includes the following steps:

[0016] Step 1: Manufacture four scaffold columns and sequentially arrange the four scaffold columns in place according to the square spatial position.

[0017] Step 2: Rigidly connect both ends of the scaffold crossbeam to the corresponding scaffold columns respectively.

[0018] Step 3: Fix one end of the chain hoist at the center position of the scaffold crossbeam and arrange it symmetrically.

[0019] Step 4: Set lifting lugs on the four sides of the protective pad of the outer bottom plate of the ship, with the positions corresponding to the connection positions of the chain hoist, so that the other end of the chain hoist can be hung on the corresponding lifting lugs to complete the manufacture of the disassembly tool for the marine wooden pier trolley.

[0020] The present invention further provides a usage method for the above-mentioned disassembly tool for an assembled marine wooden pier trolley, which is specifically as follows:

[0021] According to the ship size and actual construction conditions, fabricate a disassembling tooling for the assembled marine wooden pier trolley that meets the technical requirements and on-site conditions; wind one end of the chain block around and hang it on the cross beam of the scaffolding through the chain, and hang the other end on the sling of the protective pad on the outer bottom plate of the ship. The chain blocks in four directions are symmetrically arranged in the spatial position; after the marine wooden pier trolley is installed and the hull is steadily lifted, tighten the chain blocks synchronously, gradually lift the protective pad on the outer bottom plate of the ship to the gravity balance state, and make it suspend and contact the assembly surface by 1 mm - 2 mm. Disassemble the marine wooden pier trolley under the protective pad on the outer bottom plate of the ship. After the disassembly of the marine wooden pier trolley is completed, loosen the chain block, slowly lower the protective pad on the outer bottom plate of the ship and remove the disassembling tooling for the assembled marine wooden pier trolley to complete the disassembly of the marine wooden pier trolley.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] The disassembling tooling for the assembled marine wooden pier trolley provided by the present invention has the advantages of simple structure, reliable strength, convenient assembly and disassembly, simple fabrication, low cost, labor-saving and safe. Compared with the toolings for disassembling the wooden pier trolley in other structural forms, the disassembling tooling for the assembled marine wooden pier trolley has stronger practicability and better safety, can be loaded, unloaded and operated in a narrow space, easily lift heavy piers, and ensure that the outer bottom plate of the ship is not worn when lifting the hull. At the same time, it can be smoothly removed, which can provide a reference for the efficient implementation of the operation of disassembling the wooden pier trolley in the subsequent shipbuilding. Description of the Drawings

[0024] Figure 1 It is the general assembly top view of a disassembling tooling for the assembled marine wooden pier trolley in the present invention;

[0025] Figure 2 It is the front view of the scaffolding column in the embodiment of the present invention;

[0026] Figure 3 It is the front view of the scaffolding cross beam in the embodiment of the present invention;

[0027] Figure 4 It is the front view of the triangular elbow plate in the embodiment of the present invention;

[0028] Figure 5 It is the A-A cross-sectional view of the scaffolding column in the embodiment of the present invention;

[0029] Figure 6 It is the top view of the annular insert plate in the embodiment of the present invention;

[0030] Figure 7 It is the enlarged front view of the end of the scaffolding cross beam in the embodiment of the present invention;

[0031] Figure 8 It is the enlarged top view of the end of the scaffolding cross beam in the embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the operation of the disassembly tooling for the assembled marine wooden pier trolley in the embodiments of the present invention.

[0033] In the figure, 1 is the scaffolding column; 2 is the scaffolding crossbeam; 3 is the chain hoist; 4 is the protective pad for the outer bottom plate of the ship; 5 is the base; 6 is the triangular gusset plate; 7 is the first steel pipe; 8 is the second steel pipe; 9 is the annular insertion plate; 10 is the third steel pipe; 11 is the sealing plate; 12 is the ear plate. Detailed implementation manners

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0035] As Figure 1 shown, in the technical solution of the present invention, a disassembly tooling for an assembled marine wooden pier trolley is provided, which includes a scaffolding column 1, a scaffolding crossbeam 2 and a chain hoist 3.

[0036] Among them, both the scaffolding column 1 and the scaffolding crossbeam 2 are 4 pieces. The two ends of the scaffolding crossbeam 2 are rigidly connected to the scaffolding column 1 respectively, forming a square structure.

[0037] At the central position of the scaffolding crossbeam 2, a chain hoist 3 is fixed, and the chain hoists 3 on the four scaffolding crossbeams 2 are symmetrically arranged in space.

[0038] Hanging horses are provided at the four ends of the protective pad 4 for the outer bottom plate of the ship, and the other end of the chain hoist 3 can be correspondingly connected to the hanging horses on the protective pad 4 for the outer bottom plate of the ship. The scaffolding column 1 and the scaffolding crossbeam 2 are rigidly connected through structural fitting and pin joint. One end of the chain hoist 3 is wound and hung through a chain, and is fixed at the central position of each scaffolding crossbeam 2.

[0039] As Figure 2 shown, in an embodiment of the present invention, the scaffolding column 1 includes a base 5, a triangular gusset plate 6, a first steel pipe 7, a second steel pipe 8 and an annular insertion plate 9. Among them, the first steel pipe 7 is fixed to the base 5 by welding, the bottom of the triangular gusset plate 6 is welded to the base 5, and the side is welded to the first steel pipe 7 for structural strengthening; 2 annular insertion plates 9 are assembled on the first steel pipe 7, and the second steel pipe 8 is nested at the top of the first steel pipe 7.

[0040] As Figure 3 shown, in an embodiment of the present invention, the scaffolding crossbeam 2 includes a third steel pipe 10, a sealing plate 11 and an ear plate 12. Among them, two sealing plates 11 are respectively welded to both ends of the third steel pipe 10, and a pair of ear plates 12 are symmetrically welded to the sealing plates 11 up and down.

[0041] As Figures 4 to 5 shown, in an embodiment of the present invention, the triangular gusset plate 6 is a flat-angle inclined plate, and an arc-shaped cut is provided on the triangular gusset plate 6. Four symmetrically arranged triangular gusset plates 6 are provided on one base 5 to enhance the stability of the scaffolding structure.

[0042] As Figure 6 shown, in an embodiment of the present invention, the annular insertion plate 9 is circular, a through hole for mating with the first steel pipe 7 is provided at the center position of the circle, and pin holes for assembling with the scaffolding cross beam 2 are circumferentially arranged around the annular insertion plate 9. The shapes of the pin holes include two sizes and are alternately arranged.

[0043] As Figures 7 to 8 shown, in an embodiment of the present invention, the ear plate 12 is a rounded trapezoidal plate, a rectangular pin hole is provided on the ear plate 12, and after the pin hole on the ear plate 12 is in contact and fitted with the pin hole on the annular insertion plate 9, a detachable pin is inserted to achieve the rigid connection between the scaffolding column 1 and the scaffolding cross beam 2.

[0044] In the technical solution of the present invention, in addition to providing a disassembly tool for an assembled marine wooden pier trolley, a manufacturing method of the above tool is further provided, which specifically includes the following steps:

[0045] Step 1: Manufacture 4 scaffolding columns 1, and sequentially arrange the 4 scaffolding columns 1 in place according to the square spatial position.

[0046] Step 2: Rigidly connect the two ends of the scaffolding cross beam 2 to the corresponding scaffolding columns 1 respectively.

[0047] Step 3: Fix one end of the chain block 3 at the center position of the scaffolding cross beam 2 and arrange it symmetrically.

[0048] Step 4: Set up lifting lugs on the four sides of the bottom plate protection pad 4 of the ship's bottom, and the positions correspond to the connection positions of the chain block 3, so that the other end of the chain block 3 can be hung on the corresponding lifting lugs to complete the manufacture of the disassembly tool for the marine wooden pier trolley.

[0049] In an embodiment of the present invention, the manufacturing method of the disassembly tool for the assembled marine wooden pier trolley is specifically as follows:

[0050] Step 1: Manufacture the upper end and the middle section of the scaffolding column 1, and complete the welding of the first steel pipe 7, the second steel pipe 8 and the annular insertion plate 9; manufacture the lower end of the scaffolding column 1, symmetrically weld the four triangular gusset plates 6 on the base 5 to complete the manufacture of the scaffolding column 1. Manufacture 4 scaffolding columns 1 in sequence according to the above method, and arrange the 4 scaffolding columns 1 in place in a square form in the spatial position.

[0051] Step 2: Rigidly connect the two ends of each of the 4 scaffolding crossbeams 2 to the corresponding scaffolding columns 1 respectively by fitting the pin holes between the lug plates 11 and the annular plug plates 9 and then using pin joints.

[0052] Step 3: Wind and hang one end of the chain hoist 3 around and fix it at the center position of the scaffolding crossbeam 2, and arrange it symmetrically in the spatial position.

[0053] Step 4: Set up lifting lugs on the four sides of the bottom plate protection pad 4 of the ship, and the positions are corresponding to the connection positions of the chain hoists 3, so that the other end of the chain hoist 3 can be hung on the corresponding lifting lugs, and the manufacturing of the disassembly tooling for the marine wooden pier trolley is completed.

[0054] As Figure 9 shown, in the technical solution of the present invention, there is also a usage method of the assembled disassembly tooling for the marine wooden pier trolley, which is used for the disassembly of the marine wooden pier trolley, and the specific steps are as follows:

[0055] According to the scale of the ship and the actual construction working conditions, manufacture the assembled disassembly tooling for the marine wooden pier trolley that meets the technical requirements and the on-site working conditions;

[0056] Wind and hang one end of the chain hoist 3 around and hang it on the scaffolding crossbeam 2 through the chain, and hang the other end on the lifting lugs of the bottom plate protection pad 4 of the ship. The chain hoists 3 in four directions are arranged symmetrically in the spatial position; after the marine wooden pier trolley is installed and the hull is stably lifted, synchronously tighten the chain hoists 3, gradually lift the bottom plate protection pad 4 of the ship to the gravity balance state, and suspend it 1 mm - 2 mm from the assembly surface, disassemble the marine wooden pier trolley under the bottom plate protection pad 4 of the ship. After the disassembly of the marine wooden pier trolley is completed, loosen the chain hoists 3, slowly lower the bottom plate protection pad 4 of the ship and remove the assembled disassembly tooling for the marine wooden pier trolley, and complete the disassembly of the marine wooden pier trolley.

[0057] It should be noted that all the terms indicating direction and position in the present invention, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "bottom", "tail end", "head end", "center", etc., are only used to explain the relative position relationship and connection situation between components in a certain specific state, and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution that both A and B are satisfied at the same time.

[0058] In the present invention, unless otherwise clearly specified or limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A disassembly method for a marine wooden pier trolley, characterized in that: Disassemble using a marine wooden pier trolley disassembly tooling. The tooling includes a scaffolding column (1), a scaffolding crossbeam (2), and a chain block (3). Among them, there are 4 pieces of the scaffolding column (1) and the scaffolding crossbeam (2) respectively. The two ends of the scaffolding crossbeam (2) are rigidly connected to the scaffolding column (1) respectively, forming a square structure. The chain block (3) is fixed at the central position of the scaffolding crossbeam (2). The chain blocks (3) on the four scaffolding crossbeams (2) are symmetrically arranged in space. Lifting lugs are provided at the four ends of the bottom shell outer plate protection pad (4). The other end of the chain block (3) can be correspondingly connected to the lifting lug on the bottom shell outer plate protection pad (4). The method for disassembling a marine wooden pier trolley using the marine wooden pier trolley disassembly tooling is as follows: According to the ship size and actual construction conditions, fabricate an assembled marine wooden pier trolley disassembly tooling that meets the technical requirements and on-site conditions. Wind one end of the chain block (3) around and hang it on the scaffolding crossbeam (2) through a chain. Hang the other end on the lifting lug of the bottom shell outer plate protection pad (4). The chain blocks (3) in four directions are symmetrically arranged in space. After the marine wooden pier trolley is installed and the hull is steadily lifted, synchronously tighten the chain blocks (3), gradually lift the bottom shell outer plate protection pad (4) to the gravity balance state, and suspend it 1 mm - 2 mm from the assembly surface. Disassemble the marine wooden pier trolley under the bottom shell outer plate protection pad (4). After the disassembly of the marine wooden pier trolley is completed, loosen the chain blocks (3), slowly lower the bottom shell outer plate protection pad (4), and remove the assembled marine wooden pier trolley disassembly tooling to complete the disassembly of the marine wooden pier trolley.

2. The disassembly method of a marine wooden pier trolley according to claim 1, characterized in that: The scaffolding column (1) and the scaffolding crossbeam (2) are rigidly connected through structural fitting and pin joint.

3. The disassembly method of a marine wooden pier trolley as claimed in claim 1, characterized in that: One end of the chain block (3) is wound around and hung through a chain, and fixed at the central position of each scaffolding crossbeam (2).

4. The disassembly method of a marine wooden pier trolley according to claim 1, characterized in that: The scaffolding column (1) includes a base (5), a triangular gusset plate (6), a first steel pipe (7), a second steel pipe (8), and an annular insertion plate (9). Among them, the first steel pipe (7) is fixed to the base (5) by welding. The bottom of the triangular gusset plate (6) is welded to the base (5), and the side is welded to the first steel pipe (7) for structural strengthening. There are 2 pieces of the annular insertion plate (9) assembled on the first steel pipe (7), and the second steel pipe (8) is nested at the top of the first steel pipe (7).

5. The disassembly method of a marine wooden pier trolley as claimed in claim 1, characterized in that: The scaffolding crossbeam (2) includes a third steel pipe (10), a sealing plate (11), and an ear plate (12). Among them, two pieces of the sealing plate (11) are respectively welded at both ends of the third steel pipe (10), and a pair of ear plates (12) are symmetrically welded on the sealing plate (11) vertically.

6. The disassembly method of a marine wooden pier trolley according to claim 4, characterized in that: The triangular gusset plate (6) is a flat-angle inclined plate. An arc-shaped cutout is provided on the triangular gusset plate (6). There are 4 pieces of symmetrically arranged triangular gusset plates (6) on one base (5) for strengthening the stability of the scaffolding structure.

7. The disassembly method of a marine wooden pier trolley according to claim 4, characterized in that: The annular insertion plate (9) is circular ring-shaped, and a through hole matching with the first steel pipe (7) is opened at the center of the circle. A plurality of pin holes for assembling with the scaffold cross beam (2) are circumferentially distributed around the annular insertion plate (9). The pin holes have two sizes and are alternately arranged.

8. The disassembly method of a marine wooden pier trolley according to claim 5, characterized in that: The ear plate (12) is a fillet trapezoidal plate, and a rectangular pin hole is opened on the ear plate (12).

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