Pipeline outer wall spraying device for corrosion prevention

Abstract

The utility model discloses a pipeline outer wall spraying device for corrosion prevention relates to pipeline spraying technical field, including base, and the bottom side of base is equipped with support frame body, its characterized in that, the upper side of base is equipped with clamping part, lifting part, spraying part, the quantity of clamping part is two and is set up in the surface of base oppositely, and clamping part includes carrier plate, drive slide rail, driving motor, rotary plate, drive slide rail fixed mounting is in carrier plate, and drive slide rail passes through the slider connecting moving plate, and driving motor fixed mounting is in moving plate, spraying device includes gantry, and the upper side of gantry is equipped with horizontal slide rail, and horizontal slide rail passes through the slider connecting spraying seat, and the upper side of spraying seat is equipped with spray gun. Through the driving motor in two clamping parts synchronous drive pipeline uniform speed rotation, while spraying part moves along the pipeline axial uniform speed, realized the continuous, even spraying of spray gun to pipeline outer wall, effectively avoided the problem of uneven thickness of manual spraying, guaranteed the quality of anticorrosive coating.

Description

Technical Field

[0001] This utility model relates to the field of pipeline spraying technology, specifically to a pipeline external wall spraying device for corrosion protection. Background Technology

[0002] Metal pipelines are crucial transportation equipment in fields such as petrochemicals, urban water supply and drainage, and marine engineering. Because these pipelines are often laid in humid, corrosive soils or atmospheric environments, their outer walls are highly susceptible to electrochemical corrosion. This leads to thinning of the pipe walls, reduced pressure resistance, and even leaks, causing significant economic losses and environmental pollution. Therefore, applying an anti-corrosion coating to the outer walls of pipelines is a key process for extending their service life.

[0003] Currently, the traditional method for spraying the outer walls of pipelines is to use manual hand-held spray guns. This method has many drawbacks: it is difficult to guarantee the uniformity of manual spraying, which easily leads to uneven coating thickness. If the coating is too thin in some areas, it will reduce the anti-corrosion effect, while if it is too thick in some areas, it will waste paint and easily cause defects such as sagging and wrinkling; operators are exposed to an environment filled with volatile organic compounds and paint dust for a long time, which is extremely harmful to their health; manual spraying is inefficient and labor-intensive, making it difficult to meet the needs of large-scale pipeline production and maintenance.

[0004] To address the aforementioned issues, some pipeline spraying equipment has emerged in the existing technology, such as devices that use a fixed spray gun and spray by rotating the pipeline. However, such equipment typically suffers from the following problems: for long pipelines, the middle section lacks effective support and stability, making it prone to jumping and bending deformation during rotation, resulting in unstable spraying distance and affecting coating quality; at the same time, the clamping mechanism is usually relatively simple, making it difficult to adapt to pipelines of different diameters and lengths, resulting in poor versatility, and may damage the coating already applied to the pipeline ends during clamping and rotation.

[0005] Therefore, developing a pipe outer wall spraying device that can stably clamp, effectively prevent deformation in the middle of the pipe, spray evenly, and has a high degree of automation is of great practical significance. Utility Model Content

[0006] The purpose of this invention is to provide a pipe outer wall spraying device to overcome the shortcomings of the above-mentioned technology.

[0007] To achieve the above objectives, this utility model provides a pipe outer wall spraying device for corrosion protection, including a base, a support frame on the lower side of the base, characterized in that a clamping component, a lifting component, and a spraying component are provided on the upper side of the base; The clamping components are two in number and are arranged opposite to each other on the base surface. The clamping components include a carrier plate, a drive slide rail, a drive motor, and a rotating plate. The carrier plate is connected to the base via a hydraulic rod. The drive slide rail is fixedly mounted on the carrier plate and connected to the moving plate via a slider. The drive motor is fixedly mounted on the moving plate. The output shaft of the drive motor is fixedly connected to one side of the rotating plate, and a clamping cylinder is provided on the other side of the rotating plate. The output end of the clamping cylinder is provided with a clamping plate. The lifting component includes a trough, a lifting cylinder, and a lifting plate, all mounted on a base. The lifting cylinder is fixedly installed in the trough, and the lifting plate is connected to the output end of the lifting cylinder. The lifting plate is provided with two sets of parallel bearing members; each set of bearing members has two oppositely arranged bearing wheels. The spraying device includes a gantry frame with a transverse slide rail. The transverse slide rail is connected to the spraying station via a slider, and the spraying station is equipped with a spray gun.

[0008] Preferably, the base is provided with a limiting plate.

[0009] Preferably, the tank is equipped with at least two lifting cylinders.

[0010] Preferably, the gantry frame is equipped with two transverse slide rails.

[0011] Preferably, the rotating plate is provided with at least four clamping cylinders, which are distributed at 90 degrees to each other, and the clamping plate is arc-shaped.

[0012] The beneficial effects of this utility model are: 1. By synchronously driving the pipe to rotate at a uniform speed through the drive motors in the two clamping components, and at the same time moving the spraying component at a uniform speed along the pipe axis, the spray gun can continuously and uniformly spray the outer wall of the pipe, effectively avoiding the problem of uneven thickness in manual spraying and ensuring the quality of the anti-corrosion coating.

[0013] 2. An independent lifting component is set up, which lifts the bearing wheel through the lifting cylinder to raise and lower the pipe, matching the clamping component, and can provide flexible support from the middle and lower part of the pipe, effectively offsetting the deflection and jumping caused by the weight and rotation of the long pipe, ensuring the stability of the pipe posture during the spraying process, thereby ensuring a constant spraying distance and a uniform coating.

[0014] 3. The clamping components are height-adjustable via hydraulic rods and spacing-adjustable via drive rails, allowing them to accommodate pipes of different lengths and diameters within a certain range. Four clamping cylinders drive the clamping plates to extend outwards and press against the inner wall of the pipe for clamping. The large contact area and controllable pressure ensure a firm grip while avoiding damage to the pipe surface or any coating.

[0015] 4. The entire spraying process can be automated using pneumatic, hydraulic, and electric components, which greatly reduces the labor intensity of workers and keeps them away from harmful spraying environments, ensuring the health and safety of operators. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the tank.

[0018] In the diagram, 1. Base, 2. Support frame, 3. Carrier plate, 4. Drive slide rail, 5. Drive motor, 6. Rotating plate, 7. Hydraulic rod, 8. Clamping cylinder, 9. Clamping plate, 10. Tank, 11. Lifting cylinder, 12. Lifting plate, 13. Bearing wheel, 14. Gantry, 15. Horizontal slide rail, 16. Spraying seat, 17. Spray gun, 18. Limiting plate, 19. Moving plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0020] Reference Figure 1-2 This embodiment provides a pipe outer wall spraying device for corrosion protection, including a base 1, and a support frame 2 is provided on the lower side of the base 1. The feature is that the upper side of the base 1 is provided with a clamping component, a lifting component, and a spraying component. Two clamping components are arranged opposite each other on the surface of the base 1. The clamping components include a carrier plate 3, a drive slide rail 4, a drive motor 5, and a rotating plate 6. The carrier plate 3 is connected to the base 1 via a hydraulic rod 7. The drive slide rail 4 is fixedly installed on the carrier plate 3 and connected to a moving plate 19 via a slider. The drive motor 5 is fixedly installed on the moving plate 19. The output shaft of the drive motor 5 is fixedly connected to one side of the rotating plate 6, and a clamping cylinder 8 is provided on the other side of the rotating plate 6. The output end of the clamping cylinder 8 is provided with a clamping plate 9. The lifting component includes a trough 10, a lifting cylinder 11, and a lifting plate 12, all mounted on a base 1. The lifting cylinder 11 is fixedly installed inside the trough 10. The lifting plate 12 is connected to the output end of the lifting cylinder 11. The lifting plate 12 is provided with two sets of parallel bearing members. Each set of bearing members has two oppositely arranged bearing wheels 13. The spraying device includes a gantry frame 14, on which a transverse slide rail 15 is provided. The transverse slide rail 15 is connected to a spraying base 16 via a slider. A spray gun 17 is provided on the spraying base 16.

[0021] The base 1 is provided with a limiting plate 18. When the pipe is placed on the base 1, it can be simply limited by the limiting plate 18.

[0022] At least two lifting cylinders 11 are provided inside the tank 10 to increase the lifting stability and support stability of the lifting plate 12.

[0023] The gantry frame 14 is equipped with two transverse slide rails 15.

[0024] The rotating plate 6 is provided with at least four clamping cylinders 8, which are distributed at 90 degrees to each other, and the clamping plate 9 is arc-shaped.

[0025] Place the pipe to be coated horizontally on the base 1, ensuring the surface of the support rollers 13 is in contact with the pipe surface. Activate the lifting cylinder 11 in the lifting component to raise the pipe and position it between the two opposing clamping components, positioning its end at the center of the rotating plate 6. If necessary, the hydraulic rod 7 can be activated to adjust the height of the carrier plate 3, and the drive slide rail 4 can be activated to adjust the distance between the two clamping components to suit the current pipe specifications. The limiting plate 18 on the base 1 can be used for initial positioning of the pipe during placement.

[0026] The drive slide rail 4 moves, causing the clamping cylinder 8 to enter the pipe from both ends. The clamping cylinder 8 then pushes the clamping plate 9 outwards to press against the inner wall of the pipe. Two drive motors 5 are activated, causing the rotating plate 6 and the clamped pipe to rotate synchronously and uniformly around their own axes. The wheel surface of the bearing wheel 13 is in close contact with the lower surface of the middle section of the pipe, providing stable intermediate support and preventing jumping or excessive bending during subsequent rotation. The spraying components are then activated. The spraying base 16 moves uniformly along the axial direction of the pipe on the transverse slide rail 15. The spray gun 17, mounted on the spraying base 16, is connected to the paint supply system, and paint spraying begins.

[0027] In the above process, the uniform rotation of the pipe and the uniform axial movement of the spray gun 17 are combined to achieve a uniform coating coverage of the entire outer wall of the pipe.

[0028] After the spraying is completed, the spray gun 17 first stops spraying and resets. Then, the drive motor 5 stops, the pipe stops rotating, the clamping plate 9 and the rotating plate 6 return to their positions and leave the pipe, the lifting cylinder 11 of the lifting component returns to its position, and drives the pipe back to the base 1, so that the sprayed pipe can be lifted and moved away, completing the entire operation process.

[0029] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A pipe outer wall spraying device for corrosion protection, comprising a base (1), and a support frame (2) provided on the lower side of the base (1), characterized in that, The upper side of the base (1) is provided with clamping components, lifting components, and spraying components; There are two clamping components, which are arranged opposite each other on the surface of the base (1). The clamping components include a carrier plate (3), a drive slide rail (4), a drive motor (5), and a rotating plate (6). The carrier plate (3) is connected to the base (1) through a hydraulic rod (7). The drive slide rail (4) is fixedly installed on the carrier plate (3). The drive slide rail (4) is connected to the moving plate (19) through a slider. The drive motor (5) is fixedly installed on the moving plate (19). The output shaft of the drive motor (5) is fixedly connected to one side of the rotating plate (6). A clamping cylinder (8) is provided on the other side of the rotating plate (6). A clamping plate (9) is provided at the output end of the clamping cylinder (8). The lifting component includes a groove (10) set on the base (1), a lifting cylinder (11), and a lifting plate (12). The lifting cylinder (11) is fixedly installed in the groove (10), and the lifting plate (12) is connected to the output end of the lifting cylinder (11). The lifting plate (12) is provided with two sets of parallel bearing members; each set of bearing members has two oppositely arranged bearing wheels (13). The spraying device includes a gantry (14), a transverse slide rail (15) is provided on the gantry (14), the transverse slide rail (15) is connected to the spraying base (16) through a slider, and a spray gun (17) is provided on the spraying base (16).

2. The anti-corrosion pipe outer wall spraying device according to claim 1, characterized in that, The base (1) is provided with a limiting plate (18).

3. The anti-corrosion pipe outer wall spraying device according to claim 1, characterized in that, At least two lifting cylinders (11) are provided inside the tank (10).

4. The anti-corrosion pipe outer wall spraying device according to claim 1, characterized in that, Two transverse slide rails (15) are provided on the gantry frame (14).

5. The anti-corrosion pipe outer wall spraying device according to claim 1, characterized in that, The rotating plate (6) is provided with at least four clamping cylinders (8), which are distributed at 90 degrees apart, and the clamping plate (9) is arc-shaped.

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