Liquid nitrogen storage tank welding device

Abstract

The utility model belongs to the technical field of welding auxiliary devices, and particularly relates to a liquid nitrogen storage tank welding device which comprises a bottom plate and at least two supporting assemblies arranged on the bottom plate, and each supporting assembly comprises a V-shaped positioning block and an auxiliary rotating assembly arranged on one side of the V-shaped positioning block. The auxiliary rotating assembly comprises two idler wheels capable of freely rotating and telescopic driving pieces used for adjusting the heights of the idler wheels, the axes of the idler wheels are parallel to the axis of the tank placed on the V-shaped positioning block, and the distance between the two telescopic driving pieces is adjustable so that the distance between the two idler wheels can be driven to be adjusted. The utility model is used for solving the technical problem that the welding efficiency is influenced because the tank body is inconvenient to rotate due to the adoption of a wedge block for positioning during the welding of the tank body at present.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding auxiliary devices, specifically relating to a welding device for liquid nitrogen storage tanks. Background Technology

[0002] Liquid nitrogen storage tanks are used to store liquid nitrogen and are pressure vessels, which are sealed devices capable of withstanding a certain pressure. Existing pressure vessels typically consist of a cylindrical tank body, which is generally welded from steel plates, with an arc-shaped bottom and top connected at both ends of the cylindrical tank body by welding.

[0003] Because the tank body is cylindrical, it is prone to rolling and displacement during welding. Therefore, wedge blocks are typically inserted on both sides of the tank body for positioning during welding. However, the tank body usually needs to be rotated to complete the circumferential welding, but the large size and weight of the tank body make this inconvenient and results in low welding efficiency. Obviously, the existing wedge blocks used for positioning have a single function and cannot meet the usage requirements. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a liquid nitrogen storage tank welding device to solve the technical problem that the current method of using wedge blocks for positioning during tank welding is inconvenient to rotate the tank, which affects the welding efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a liquid nitrogen storage tank welding device, the welding device including a base plate and at least two support components disposed on the base plate, the support components including a V-shaped positioning block and an auxiliary rotating component disposed on one side of the V-shaped positioning block, the auxiliary rotating component including two freely rotatable rollers and a telescopic drive component for adjusting the height of the rollers, the axis of the rollers being parallel to the axis of the tank body placed on the V-shaped positioning block, the distance between the two telescopic drive components being adjustable to drive and adjust the distance between the two rollers.

[0006] Preferably, the auxiliary rotation assembly further includes two support blocks vertically connected to one side of the V-shaped positioning block, a sliding column connected between the two support blocks, and an adjusting bolt threaded onto the sliding column; the bottom of the telescopic drive component passes through the sliding column via a sliding seat and is limited and locked by the adjusting bolt, so that the distance between the two telescopic drive components is adjustable.

[0007] Preferably, two sliding columns are arranged in parallel.

[0008] Preferably, the auxiliary rotating assembly further includes a U-shaped support frame, the roller is rotatably connected to the U-shaped support frame, and the U-shaped support frame is connected to the movable end of the telescopic drive component.

[0009] Preferably, the telescopic drive component is a hydraulic cylinder.

[0010] Preferably, the base plate is further provided with a sliding groove, and the V-shaped positioning block is slidably connected in the sliding groove to realize the adjustment of the distance between the two V-shaped positioning blocks.

[0011] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0012] This invention features two V-shaped positioning blocks on a base plate. The tank to be welded rests on these blocks, ensuring proper positioning and preventing rolling. An auxiliary rotating assembly, comprising two freely rotating rollers and two telescopic drive components, is installed on one side of each V-shaped positioning block. The axes of the rollers are parallel to the axis of the tank placed on the V-shaped positioning block. The two telescopic drive components adjust the height of the rollers to ensure they are higher than the top surface of the V-shaped positioning block, thus supporting the tank. Rotation of the tank can be easily achieved manually, facilitating welding and improving efficiency. The distance between the two telescopic drive components is adjustable, allowing for adjustment of the distance between the rollers to accommodate tanks of different diameters and enhance support stability. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of an embodiment of a welding device for a liquid nitrogen storage tank;

[0014] Figure 2 This is a schematic diagram of the support components of an embodiment of a welding device for a liquid nitrogen storage tank.

[0015] in, Figure 1 , 2 In the middle, 1-base plate, 2-slide groove, 3-V-shaped positioning block, 4-support block, 5-sliding column, 6-adjusting bolt, 7-sliding seat, 8-telescopic drive component, 9-U-shaped support frame, 10-roller. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments, and do not limit the scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The specific implementation method is as follows:

[0020] Example 1, such as Figure 1 , 2 As shown, a welding device for a liquid nitrogen storage tank includes a base plate 1 and at least two support assemblies. In this embodiment, two support assemblies are provided and connected to the base plate 1 at intervals.

[0021] The support assembly includes V-shaped positioning blocks 3 and auxiliary rotating components. In this embodiment, two auxiliary rotating components are respectively disposed inside the two V-shaped positioning blocks 3. The upper end of the V-shaped positioning block 3 is V-shaped to position the can placed on it and prevent the can from rolling. The auxiliary rotating components are disposed on one side of the V-shaped positioning blocks 3. The auxiliary rotating components include rollers 10 and telescopic drive members 8. Two rollers 10 and two telescopic drive members 8 are provided. The rollers 10 are disposed at the movable end of the telescopic drive members 8 to adjust the height of the rollers 10. The two rollers 10 are spaced apart and can rotate freely. The axis of the rollers 10 is parallel to the axis of the can placed on the V-shaped positioning blocks 3. The distance between the two telescopic drive members 8 is adjustable, thereby adjusting the distance between the two rollers 10 to accommodate cans of different diameters.

[0022] In this embodiment, a liquid nitrogen storage tank welding device is used by horizontally mounting the tank to be welded across two V-shaped positioning blocks 3. The V-shape of the top of the positioning blocks 3 provides positioning for the tank, effectively preventing it from rolling during welding. During welding, the tank needs to be rotated to accommodate the welding angle. The appropriate distance between the two telescopic drive components 8 is adjusted (to ensure stability when supporting the tank). The telescopic drive components 8 are activated to adjust the height of the rollers 10, making them higher than the top surface of the V-shaped positioning blocks 3. At this point, the tank is no longer supported by the V-shaped support blocks 3 but is instead supported by the rollers 3. Since the rollers 3 can rotate freely, the tank can be rotated by the operator simply by turning them. This eliminates the need for a large number of personnel and complex auxiliary tools. After adjusting the angle, welding can continue, thereby improving welding efficiency and meeting the production needs of manufacturers.

[0023] Furthermore, the auxiliary rotating assembly also includes two support blocks 4, a sliding column 5, and an adjusting bolt 6. The two support blocks 4 are vertically connected to both ends of one side of the V-shaped positioning block 3, and the sliding column 5 is connected between the two support blocks 4. More specifically, a sliding seat 7 is provided at the bottom of the telescopic drive member 8. The sliding seat 7 has a through hole that passes through the sliding column 5 to allow the telescopic drive member 8 to move along the sliding column 5 and adjust the distance between the two telescopic drive members 8. The adjusting bolt 6 is threadedly connected to the sliding column 5. When the telescopic drive member 8 is adjusted to a suitable position, the adjusting bolt 6 is moved to press against the sliding seat 7 to lock the position of the sliding seat 7, thereby ensuring stability when the roller 10 supports the tank.

[0024] In this embodiment, the auxiliary rotating assembly exerts downward and outward forces when supporting the tank, so the adjusting bolt 6 only needs to be set on the outside of the sliding seat 7, simplifying the structure.

[0025] Furthermore, two sliding columns 5 are provided and are set horizontally. The sliding seat 7 is sleeved on the two sliding columns 5 through two through holes to ensure the stability of the sliding seat 7 when supporting the tank.

[0026] Furthermore, the auxiliary rotating assembly also includes a U-shaped support frame 9. The roller 10 is rotatably connected to the U-shaped support frame 9 to achieve free rotation. The bottom of the U-shaped support frame 9 is connected to the movable end of the telescopic drive member 8, completing the drive connection between the roller 10 and the telescopic drive member 8.

[0027] Furthermore, the telescopic drive component 8 is a hydraulic cylinder, which eliminates the need for a speed reduction device during reciprocating motion and eliminates transmission backlash, resulting in smooth movement. In other embodiments, the telescopic drive component 8 may also be a pneumatic cylinder.

[0028] Example 2, as Figure 1As shown, a liquid nitrogen storage tank welding device differs from Embodiment 1 in that a sliding groove 2 is also provided on the base plate 1, and a V-shaped positioning block 3 is slidably connected in the sliding groove 2. A locking component is provided to lock the position of the V-shaped positioning block 3 so as to adjust the distance between the two V-shaped positioning blocks 3, adapt to the support of tanks of different sizes, and ensure the stability of the support. Other structures will not be described in detail here.

[0029] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A liquid nitrogen storage tank welding apparatus, characterized by, The welding device comprises a bottom plate and at least two supporting assemblies arranged on the bottom plate, each of the supporting assemblies comprises a V-shaped positioning block and an auxiliary rotating assembly arranged on one side of the V-shaped positioning block, the auxiliary rotating assembly comprises two freely rotating rollers and telescopic driving members for adjusting the height of the rollers, the axis of the rollers is parallel to the axis of a tank placed on the V-shaped positioning block, and the distance between the two telescopic driving members is adjustable to adjust the distance between the two rollers.

2. The liquid nitrogen storage tank welding apparatus according to claim 1, wherein The auxiliary rotating assembly further comprises two supporting blocks vertically connected to one side of the V-shaped positioning block, a sliding column connected between the two supporting blocks and an adjusting bolt threadedly connected to the sliding column; the bottom of each telescopic driving member is arranged on the sliding column through a sliding seat and is locked by the adjusting bolt to adjust the distance between the two telescopic driving members.

3. The liquid nitrogen storage tank welding apparatus according to claim 2, wherein The sliding column is provided with two parallel sliding columns.

4. The liquid nitrogen storage tank welding apparatus according to claim 1, wherein The auxiliary rotating assembly further comprises a U-shaped supporting frame, the rollers are rotatably connected to the U-shaped supporting frame, and the U-shaped supporting frame is connected to the movable end of the telescopic driving member.

5. The liquid nitrogen storage tank welding apparatus of claim 1, wherein, The telescopic driving member is a hydraulic cylinder.

6. The liquid nitrogen storage tank welding apparatus according to any one of claims 1 to 5, characterized by, The bottom plate is further provided with a sliding groove, and the V-shaped positioning block is slidably connected to the sliding groove to adjust the distance between the two V-shaped positioning blocks.

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