Cable winding prevention tool for liquefied natural gas storage tank

Abstract

The utility model discloses a liquefied natural gas storage tank cable winding prevention tool which comprises a shaft barrel, the upper end of the shaft barrel is connected with a balance plate, and the shaft barrel below the balance plate is rotationally connected with a plurality of cable distribution discs. A lifting lug is further connected to the upper end face of the shaft barrel. The cable winding prevention device is reasonable in structural design, easy to manufacture, convenient to operate, capable of effectively preventing the cable winding phenomenon when the electric hoist hoists storage tank wall plates, outer wall lining plates and the like, capable of improving working efficiency, safe and reliable to use and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of liquefied natural gas storage tank construction, and in particular to a tooling for preventing cable entanglement in liquefied natural gas storage tanks. Background Technology

[0002] During the construction phase of liquefied natural gas (LNG) storage tank hoisting, such as the installation of tank wall panels and external wall linings, electric hoists are often used for hoisting operations. However, the cables are prone to tangling during use, which can create safety hazards and affect construction efficiency, indicating room for improvement. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, this utility model provides a tooling for preventing cable entanglement in liquefied natural gas storage tanks.

[0004] This utility model is achieved by adopting the following technical solution.

[0005] A liquefied natural gas storage tank anti-cable entanglement fixture includes a shaft cylinder, a balance plate connected to the upper end of the shaft cylinder, and several cable distribution discs rotatably connected to the shaft cylinder below the balance plate; a lifting lug is also connected to the upper end face of the shaft cylinder.

[0006] Furthermore, the cable distribution disc is connected to the shaft cylinder via bearings.

[0007] Furthermore, the shaft cylinder is provided with three cable distribution discs, which are arranged at a certain distance apart.

[0008] Furthermore, a square hole is provided on the cable distribution plate near the edge of the cable distribution plate.

[0009] Furthermore, bolt holes are provided at the four corners of the balance plate.

[0010] Furthermore, the balance plate is also provided with through holes.

[0011] Furthermore, the lug is provided with a round hole.

[0012] This application has the following beneficial effects.

[0013] This invention can effectively prevent cable entanglement during the hoisting of wall panels and external wall linings for LNG storage tanks. It is simple, safe, and can also effectively improve construction efficiency, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram intended to illustrate the balance plate structure of this utility model.

[0016] Among them, 1. shaft cylinder; 2. balance plate; 21. through hole; 22. bolt hole; 3. cable distribution reel; 31. first cable distribution reel; 32. second cable distribution reel; 33. third cable distribution reel; 34. square hole; 4. bearing; 5. lifting lug; 51. round hole. Detailed Implementation

[0017] The present patent application will be further described below with reference to the embodiments.

[0018] like Figures 1-2 As shown, a liquefied natural gas storage tank anti-cable entanglement fixture includes a shaft cylinder 1, a balance plate 2, three cable distribution reels 3 (namely, the first cable distribution reel 31, the second cable distribution reel 32, and the third cable distribution reel 33), three bearings 4, and a lifting lug 5.

[0019] The shaft cylinder 1 is cylindrical, and a lifting lug 5 is welded to the upper end face of the shaft cylinder 1. A circular hole 51 is formed on the lifting lug 5. The shaft cylinder 1 is connected to the tank body through the lifting lug 5, which serves to fix the position of the tooling.

[0020] A balance plate 2 is welded to the upper end of the shaft cylinder 1. The balance plate 2 is a rectangular plate with a central hole in the center for the shaft cylinder 1 to pass through. Two through holes 21 are set diagonally at the edge of the balance plate 2 for the cable to pass through. Bolt holes 22 are also provided at the four corners of the balance plate 2.

[0021] Several cable distribution discs 3 are rotatably connected to the shaft cylinder 1 below the balance plate 2. The cable distribution discs 3 are circular, and square holes 34 are formed near the edge of the cable distribution discs 3 for fixing cables. Preferably, there are three cable distribution discs 3, and the three cable distribution discs 3 are arranged at a certain distance. The shaft cylinder 1 and the cable distribution discs 3 are rotatably connected by bearings 4, and the inner ring and outer ring of the bearings 4 are welded to the shaft cylinder 1 and the cable distribution discs 3, respectively.

[0022] Example

[0023] I. Preparation

[0024] like Figure 1 and Figure 2 As shown, this tooling is made of carbon steel.

[0025] 1. Preparation of shaft cylinder 1: A shaft cylinder 1 with a length of 1400mm is made using a carbon steel pipe with a diameter of 100mm. Starting from the upper end of the shaft cylinder 1, lines are engraved at 350mm, 700mm and 1050mm respectively. A groove with a depth of 100mm is opened at the center of the upper end face of the shaft cylinder 1 for the connection of the lifting lug 5.

[0026] 2. Preparation of balance plate 2: A square plate with a length of 1000mm, a width of 1000mm, and a thickness of 12mm is made from a carbon steel plate with a thickness of 12mm. A 105mm center hole is drilled in the center of the plate. Bolt holes 22 with a diameter of 18mm are drilled at the four corners of the balance plate 2 at a distance of 40mm from the edge. Two through holes 21 with a diameter of 100mm are drilled on the balance plate 2 at a distance of 150mm from the edge. The two through holes 21 are located on the diagonal of the balance plate 2.

[0027] 3. Preparation of cable tray 3: Three circular plates with a diameter of 400mm and a thickness of 10mm are made from carbon steel plates with a thickness of 10mm. A 105mm center hole is drilled in the center of each circular plate. A square hole 34 with a length of 100mm and a width of 50mm is drilled 100mm away from the center of the center hole.

[0028] 4. Bearing 4 is a commercially available bearing.

[0029] 5. Preparation of lifting lug 5: Use a carbon steel plate with a thickness of 12mm to make a plate with a length of 200mm, a width of 130mm and a thickness of 12mm, and drill a 50mm round hole 51 in the center of the plate.

[0030] 6. Assembly: The three cable distribution discs 3 are aligned with the center of the bearing 4 and welded together; the three welded cable distribution discs 3 are placed on the corresponding engraved lines of the shaft cylinder 1 and welded together; the shaft cylinder 1 is passed through the center hole of the balance plate 2 and welded together; the lifting lug 5 is installed on the upper end face of the shaft cylinder 1 and then welded together.

[0031] II. Usage

[0032] To fix the position of the balance plate 2, four aluminum plates are used at the center of the aluminum ceiling and bolted to the channel steel. Next, four 18mm diameter bolt holes are made on the upper surface of the channel steel, corresponding to the bolt holes 22 on the balance plate 2, and the balance plate 2 is fixed in position by bolts. After installation, it is lifted to the top of the storage tank along with the gas jack. To prevent this fixture from falling, a chain hoist is used to mechanically connect it to the lifting lug 5. After the fixture is fixed in position, the cables are passed through the through holes 21 and fixed to their respective cable reels 3, ready for use.

[0033] This utility model tooling can avoid cable tangling, improve work efficiency, and has the advantages of being easy to use, flexible, durable, and reducing labor intensity.

[0034] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tooling for preventing cable entanglement in a liquefied natural gas storage tank, characterized in that: It includes a shaft cylinder (1), a balance plate (2) is connected to the upper end of the shaft cylinder (1), and several cable distribution discs (3) are rotatably connected to the shaft cylinder (1) below the balance plate (2); a lifting lug (5) is also connected to the upper end face of the shaft cylinder (1).

2. The anti-cable entanglement fixture for a liquefied natural gas storage tank according to claim 1, characterized in that: The cable distribution disc (3) is connected to the shaft cylinder (1) via a bearing (4).

3. The anti-cable entanglement fixture for a liquefied natural gas storage tank according to claim 1, characterized in that: The shaft cylinder (1) is provided with three cable distribution discs (3), which are set at a certain distance apart.

4. The anti-cable entanglement fixture for a liquefied natural gas storage tank according to claim 1, characterized in that: A square hole (34) is provided on the cable distribution plate (3) near the edge of the cable distribution plate (3).

5. The anti-cable entanglement fixture for a liquefied natural gas storage tank according to claim 1, characterized in that: Bolt holes (22) are provided at the four corners of the balance plate (2).

6. The anti-cable entanglement fixture for a liquefied natural gas storage tank according to claim 1, characterized in that: The balance plate (2) is also provided with through holes (21).

7. The anti-cable entanglement fixture for a liquefied natural gas storage tank according to claim 1, characterized in that: The lug (5) has a round hole (51).

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