Automatic paint make-up device for interior of large-diameter steel pipe

Abstract

The utility model discloses an automatic paint make-up device for the interior of a large-diameter steel pipe, a walking mechanism comprises a walking body and walking wheels, a paint make-up mechanism comprises a paint storage box and a paint spraying mechanism, the paint storage box is fixedly installed on the walking body, an installation frame on the walking body comprises a vertical beam and a horizontal beam, the horizontal beam is provided with a rotating assembly, and the vertical beam is fixedly installed on the walking body. A rotating driving unit is arranged on the horizontal beam, the rotating assembly is driven by the rotating driving unit to rotate, the paint spraying mechanism comprises a paint spraying seat and a spraying gun arranged on the paint spraying seat, the rotating assembly comprises a rotating pipe and an annular body arranged at the end of the rotating pipe, and the paint spraying seat is arranged on the annular body. According to the automatic paint make-up device for the interior of the large-diameter steel pipe, the walking mechanism can move along the inner wall of the steel pipe, and after the automatic paint make-up device moves to a designated paint make-up position, paint in the paint storage box is subjected to paint spraying operation in the circumferential direction of the inner wall of the steel pipe under the action of the pump body and the driving of the rotating paint spraying base through the spray gun.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe paint repair technology, and in particular to an automatic paint repair device for the inside of large-diameter steel pipes. Background Technology

[0002] Steel pipes, as widely used and crucial steel structural components, play a key role in various engineering fields. After welding, specific areas inside the steel pipe often require touch-up painting due to damage to the original protective layer caused by the welding process. This enhances the steel pipe's corrosion resistance and significantly extends its service life. Taking large-diameter steel pipes as an example, after the welding process, the joint area inside the pipe is the touch-up painting area, and according to engineering standards, multiple coats of paint are usually required to fully meet the protection requirements.

[0003] Currently, manual painting is the most common method used in the industry. However, this manual operation results in high labor intensity, forcing workers to work continuously for extended periods in the cramped, poorly ventilated environment inside the steel pipes, posing a serious threat to their health. Furthermore, manual painting is extremely inefficient. For large-scale projects involving numerous steel pipes, it is difficult to complete the painting task on time, severely hindering project progress. Moreover, the quality of the painting depends excessively on the individual worker's skill level and real-time working condition, making it prone to uneven paint thickness and missed areas. Ultimately, the painting effect falls far short of expectations, failing to effectively guarantee the protective performance and long-term stable use of the steel pipes. Utility Model Content

[0004] The purpose of this invention is to provide an automatic paint repair device for the inside of large-diameter steel pipes, so as to solve the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic paint repair device for the interior of a large-diameter steel pipe includes a traveling mechanism and a paint repair mechanism. The traveling mechanism includes a traveling body and traveling wheels disposed at the bottom of the traveling body. The paint repair mechanism includes a paint storage tank and a painting mechanism. The paint storage tank is fixedly mounted on the traveling body. A mounting frame is disposed on the traveling body. The mounting frame includes a vertical beam and a horizontal beam. A rotating component is disposed on the horizontal beam. A rotating drive unit is disposed on the horizontal beam. The rotating component is driven by the rotating drive unit and can rotate. The painting mechanism includes a paint spraying base and a spray gun disposed on the paint spraying base. The rotating component includes a rotating tube and an annular body disposed at the end of the rotating tube. The paint spraying base is disposed on the annular body.

[0007] The aforementioned automatic paint touch-up device for large-diameter steel pipes includes a rotating conveying pipe fixedly installed inside the rotating pipe, with the end of the rotating conveying pipe connected to the spray gun.

[0008] The aforementioned automatic paint touch-up device for large-diameter steel pipes has a rotating docking seat fixedly installed on the horizontal beam, a fixed conveying pipe installed on the paint storage tank, and the rotating conveying pipe is rotatably connected to the fixed conveying pipe through the rotating docking seat.

[0009] The aforementioned automatic paint touch-up device for the interior of large-diameter steel pipes also includes an adjustment seat, on which a mounting base plate is provided, and the mounting base plate can be fixedly installed on the annular body.

[0010] The aforementioned automatic paint touch-up device for large-diameter steel pipes has an adjustment seat that is U-shaped. Inside the U-shaped seat is a movable seat, which is rotatably connected to the side walls on opposite sides of the U-shaped seat via a rotating connecting shaft.

[0011] The aforementioned automatic paint touch-up device for large-diameter steel pipes has an installation structure on the movable base that allows the paint spraying base to be installed.

[0012] The aforementioned automatic paint touch-up device for the interior of large-diameter steel pipes also includes a drive linkage assembly, which is mounted on the adjusting seat. The movable seat is driven by the drive linkage assembly and can rotate within the U-shaped seat to adjust its angle.

[0013] The aforementioned automatic paint touch-up device for the interior of large-diameter steel pipes includes a drive linkage assembly comprising a drive plate and a connecting rod connected together. A rotary drive component is provided on the adjusting seat. The drive shaft of the rotary drive component is connected to one end of the drive plate, and the other end of the drive plate is connected to the connecting rod.

[0014] In the aforementioned automatic paint touch-up device for large-diameter steel pipes, a connecting plate is provided at the bottom of the movable seat, a connecting shaft is provided on the connecting plate, and the other end of the connecting rod is connected to the connecting shaft.

[0015] In the above technical solution, the automatic paint repair device for large-diameter steel pipes provided by this utility model includes a walking mechanism and a paint repair mechanism. The walking mechanism includes a walking body and walking wheels set at the bottom of the walking body. The paint repair mechanism includes a paint storage tank and a spraying mechanism. A mounting frame is provided on the walking body. The mounting frame includes a vertical beam and a horizontal beam. A rotating component is provided on the horizontal beam. The rotating component is driven by a rotating drive unit and can rotate. The spraying mechanism includes a spray gun and a spray base. Thus, during use, the walking mechanism can move along the inner wall of the steel pipe. When the automatic paint repair device moves to the designated location... After the touch-up position is reached, the paint in the storage tank is pumped through a fixed delivery pipe, a docking channel, and a rotating delivery pipe to the spray gun. Driven by the rotating spray gun base, the spray gun performs the painting operation along the circumference of the inner wall of the steel pipe. The rotating drive unit drives the rotating pipe to rotate, which allows the annular body installed at the end of the rotating pipe and the spray gun base to rotate together around the axis of the rotating pipe. The spraying pressure and flow rate of the spray gun and the rotation speed of the rotating pipe can be adjusted according to the number of paint layers and quality requirements to control the amount of paint sprayed and the coverage area, achieving efficient and uniform touch-up of specific areas inside the steel pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 A front view of the automatic paint touch-up device for the interior of a large-diameter steel pipe provided in an embodiment of this utility model;

[0018] Figure 2 Right view of the automatic paint touch-up device for the inside of a large-diameter steel pipe provided in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustment seat provided in an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Walking mechanism; 11. Walking body; 111. Walking wheel; 12. Paint touch-up mechanism; 121. Paint storage tank; 13. Fixed delivery pipe; 2. Mounting frame; 21. Vertical beam; 22. Horizontal beam; 23. Rotary docking seat; 24. Rotary drive unit; 3. Painting mechanism; 31. Paint spraying stand; 32. Spray gun; 33. Adjustment seat; 331. Mounting base plate; 34. Movable seat; 35. Drive linkage assembly; 351. Drive plate; 352. Connecting rod; 353. Rotary drive component; 354. Connecting plate; 4. Rotary assembly; 41. Rotating tube; 42. Ring body. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, this utility model provides an automatic paint repair device for the interior of a large-diameter steel pipe, including a walking mechanism 1 and a paint repair mechanism 12. The walking mechanism 1 includes a walking body 11 and walking wheels 111 disposed at the bottom of the walking body 11. The paint repair mechanism 12 includes a paint storage tank 121 and a spraying mechanism 3. The paint storage tank 121 is fixedly installed on the walking body 11. A mounting frame 2 is provided on the walking body 11. The mounting frame 2 includes a vertical beam 21 and a horizontal beam 22. A rotating component 4 is provided on the horizontal beam 22. A rotating drive unit 24 is provided on the horizontal beam 22. The rotating component 4 is driven by the rotating drive unit 24 and can rotate. The spraying mechanism 3 includes a spray gun 31 and a spray gun 32 disposed on the spray gun 31. The rotating component 4 includes a rotating tube 41 and an annular body 42 disposed at the end of the rotating tube 41. The spray gun 31 is disposed on the annular body 42.

[0024] Specifically, the dimensions of the traveling mechanism 1 correspond to the internal dimensions of the large-diameter steel pipe, enabling it to move inside the pipe. The traveling mechanism 1 includes a traveling body 11 and traveling wheels 111 mounted at the bottom of the traveling body 11. The traveling body 11, serving as the carrier for the entire paint touch-up machine, is constructed with a robust metal frame structure, typically made of high-strength aluminum alloy or alloy steel. Four or more traveling wheels 111 are evenly distributed at the bottom of the traveling body 11. The surfaces of the traveling wheels 111 have deep anti-slip patterns, increasing friction with the inner wall of the steel pipe and ensuring that the machine does not slip due to the smoothness or tilt of the pipe's inner wall during movement.

[0025] In this embodiment, the paint storage tank 121 is fixedly installed above the walking body 11. It is rectangular or cylindrical in shape and has a large volume to meet the paint storage needs of long-term touch-up painting operations. The mounting frame 2 consists of a vertical beam 21 and a horizontal beam 22. The vertical beam 21 is vertically fixed to the walking body 11 and connected by welding or high-strength bolts. The height of the vertical beam 21 can be fixed, but preferably, the height can be adjusted as needed. The horizontal beam 22 is fixedly installed on top of the vertical beam 21.

[0026] In this embodiment, the rotating component 4 includes a rotating tube 41 and an annular body 42. A rotating mounting structure is provided on the horizontal beam 22. The rotating mounting structure can be a rotating mounting groove or a rotating mounting channel. The rotating tube 41 is rotatably connected to the rotating mounting structure. A rotating drive unit 24 is provided on the horizontal beam 22. The rotating drive unit 24 can be a drive motor and a drive gear. A transmission gear is provided at the first end of the rotating tube 41. The transmission gear is connected to the drive gear, so that the rotating tube 41 can rotate on the horizontal beam 22 by the drive motor. The annular body 42 is fixedly installed on the second section of the rotating tube 41. The annular body 42 and the rotating tube 41 can be fixed by welding. The painting mechanism 3 includes a paint spraying base 31 and a spray gun 32 provided on the paint spraying base 31. The paint spraying base 31 is fixedly connected to the annular body 42. The paint spraying base 31 on the annular body 42 can... There can be one, two, three or more spray guns 32 on each spray gun 31. A rotating conveying pipe for conveying paint is provided in the rotating pipe 41. A fixed conveying pipe 13 is provided on the paint storage tank 121. A rotating docking seat 23 is fixedly provided at the end of the horizontal beam 22. A docking channel is provided in the rotating docking seat 23. The other end of the fixed conveying pipe 13 is fixedly connected to the rotating docking head. The end of the rotating pipe 41 is rotatably connected to the docking channel. Thus, the docking channel of the fixed conveying pipe 13 and the rotating conveying pipe are connected in sequence. During the rotation of the rotating pipe 41, the rotating conveying pipe is always connected to the fixed conveying pipe 13. The other end of the rotating conveying pipe is connected to the spray gun 32. In order to realize the conveying of paint, a pump body can be provided on the fixed conveying pipe 13, so that the paint can be conveyed and sprayed out from the spray gun 32.

[0027] In this embodiment, when the automatic paint touch-up device needs to move inside the steel pipe, the operator first pours the paint into the paint storage tank 121 and controls the walking mechanism 1 through the controller, causing the walking mechanism 1 to move forward or backward along the inner wall of the steel pipe. When the automatic paint touch-up device moves to the designated paint touch-up position, the rotary drive unit 24 is activated. The rotary drive unit 24 drives the rotating tube 41 to rotate, thereby causing the annular body 42 installed at the end of the rotating tube 41 and the paint spraying base 31 to rotate together around the axis of the rotating tube 41. At the same time, the paint in the paint storage tank 121 is transported to the spray gun 32 through the fixed conveying pipe 13, the docking channel and the rotating conveying pipe under the action of the pump body. The spray gun 32, driven by the rotating paint spraying base 31, performs the painting operation along the circumferential direction of the inner wall of the steel pipe.

[0028] This utility model provides an automatic paint repair device for the inside of a large-diameter steel pipe, including a traveling mechanism 1 and a paint repair mechanism 12. The traveling mechanism 1 includes a traveling body 11 and traveling wheels 111 disposed at the bottom of the traveling body 11. The paint repair mechanism 12 includes a paint storage tank 121 and a spraying mechanism 3. A mounting frame 2 is provided on the traveling body 11. The mounting frame 2 includes a vertical beam 21 and a horizontal beam 22. A rotating component 4 is provided on the horizontal beam 22. The rotating component 4 is driven by a rotating drive unit 24 and can rotate. The spraying mechanism 3 includes a spray gun 32 disposed on the spray gun 31. Thus, during use, the traveling mechanism 1 can move along the inner wall of the steel pipe. When the automatic paint repair device moves to the designated position... After the designated touch-up location is determined, the paint in the paint tank 121 is pumped to the spray gun 32 through the fixed delivery pipe 13, the docking channel, and the rotating delivery pipe. Driven by the rotating paint base 31, the spray gun 32 performs the painting operation along the circumference of the inner wall of the steel pipe. The rotating drive unit 24 drives the rotating pipe 41 to rotate, so that the annular body 42 installed at the end of the rotating pipe 41 and the paint base 31 rotate together around the axis of the rotating pipe 41. The spraying pressure and flow rate of the spray gun 32 and the rotation speed of the rotating pipe 41 can be adjusted according to the number of paint layers and quality requirements to control the amount of paint sprayed and the coverage area, so as to achieve efficient and uniform touch-up of specific areas inside the steel pipe.

[0029] In this embodiment, preferably, it also includes an adjusting seat 33, on which a mounting base plate 331 is provided. The mounting base plate 331 is fixedly mounted on the annular body 42. The mounting base plate 331 can be snapped onto the annular body 42 or welded onto the annular body 42. The adjusting seat 33 is a U-shaped seat, and a movable seat 34 is provided inside the U-shaped seat. The movable seat 34 is rotatably connected to the side walls on opposite sides of the U-shaped seat through a rotating connecting shaft. In this way, an open installation space is formed inside the U-shaped seat. The movable seat 34 can rotate within the installation space through the connecting shaft, thereby realizing the adjustment of the angle of the movable seat 34.

[0030] In this embodiment, preferably, the movable seat 34 is provided with an installation structure that can install the paint sprayer 31. The installation structure can be a mounting screw hole, so that the paint sprayer 31 can be fixedly installed on the installation structure by fixing bolts. By adjusting the angle of the movable seat 34, the angle of the paint sprayer 31 and the spray gun 32 can be adjusted.

[0031] In this embodiment, preferably, a drive linkage assembly 35 is also included, which is disposed on the adjusting seat 33. The movable seat 34 is driven by the drive linkage assembly 35 and can rotate within the U-shaped seat to adjust its angle. The drive linkage assembly 35 includes a drive plate 351 and a connecting rod 352 connected to each other. A rotary drive component 353 is disposed on the adjusting seat 33. The drive shaft of the rotary drive component 353 is connected to one end of the drive plate 351, and the other end of the drive plate 351 is connected to the connecting rod 352. A connecting plate 354 is disposed at the bottom of the movable seat 34. A connecting shaft is disposed on the connecting plate 354, and the other end of the connecting rod 352 is connected to the connecting shaft.

[0032] The drive plate 351 is made of high-strength, high-toughness metal and is designed to be flat. The connecting rod 352 is a slender rod-shaped structure, generally made of high-strength metal. The adjusting seat 33 is equipped with a rotary drive component 353, which can be a drive motor. A drive shaft is provided on the rotary drive component 353. One end of the drive plate 351 is tightly connected to the drive shaft of the rotary drive component 353, so that the drive plate 351 can rotate synchronously with the drive shaft. A connecting plate 354 extends from the bottom of the movable seat 34. The connecting plate 354 is also made of a sturdy and durable metal. The connecting plate 354 and the movable seat 34 can be manufactured by an integral molding process. A connecting shaft is provided on the connecting plate 354. The other end of the drive plate 351 is rotatably connected to the connecting rod 352. The other end of the connecting rod 352 is also rotatably connected to the connecting shaft on the connecting plate 354. In this way, the drive plate 351, the connecting rod 352, and the connecting plate 354 at the bottom of the movable seat 34 are connected to form an interconnected drive linkage assembly 35.

[0033] When the angle of the spray gun 32 needs to be adjusted, the external control system sends a command to the rotary drive component 353. The rotary drive component 353 starts, and the drive shaft begins to rotate. Since the drive plate 351 is tightly connected to the drive shaft, it rotates along with the drive shaft. The rotation of the drive plate 351 transmits power to the connecting rod 352, causing the connecting rod 352 to move accordingly. Because the other end of the connecting rod 352 is connected to the connecting shaft on the connecting plate 354 at the bottom of the movable seat 34, the movement of the connecting rod 352 will push the connecting shaft to move. Since the connecting plate 354 and the movable seat 34 are fixed together, the movement of the connecting shaft drives the movable seat 34 to rotate around its own rotating connecting shaft within the U-shaped seat, ultimately achieving the adjustment of the angle of the movable seat 34. In this way, in the complex and ever-changing paint repair environment inside large-diameter steel pipes, the angle of the spray gun 32 can be adjusted quickly and accurately, significantly improving the efficiency and quality of paint repair operations.

[0034] In this embodiment, there are two spray guns 31, and each spray gun 31 is equipped with multiple spray guns 32. In use, the two spray guns 31 can be rotated to different directions by rotating the drive unit 24 and the drive linkage assembly 35. That is, the spray guns 32 on the two spray guns 31 are in different directions. This allows for the painting operation on the large-diameter steel pipe that needs to be painted from different angles, thereby improving the painting effect.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic paint touch-up device for the interior of large-diameter steel pipes, characterized in that, The system includes a walking mechanism and a touch-up painting mechanism. The walking mechanism includes a walking body and wheels disposed at the bottom of the walking body. The touch-up painting mechanism includes a paint tank and a painting mechanism. The paint tank is fixedly mounted on the walking body. The walking body is provided with a mounting frame, which includes a vertical beam and a horizontal beam. A rotating component is disposed on the horizontal beam, and a rotating drive unit is disposed on the horizontal beam. The rotating component is driven by the rotating drive unit and can rotate. The painting mechanism includes a paint spray base and a spray gun disposed on the paint spray base. The rotating component includes a rotating tube and an annular body disposed at the end of the rotating tube. The paint spray base is disposed on the annular body.

2. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 1, characterized in that, A rotating conveying pipe is fixedly installed inside the rotating tube, and the end of the rotating conveying pipe is connected to the spray gun.

3. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 2, characterized in that, A rotating docking seat is fixedly installed on the horizontal beam, and a fixed conveying pipe is installed on the paint storage tank. The rotating conveying pipe is rotatably connected to the fixed conveying pipe through the rotating docking seat.

4. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 1, characterized in that, It also includes an adjustment seat, on which a mounting base plate is provided, and the mounting base plate can be fixedly installed on the annular body.

5. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 4, characterized in that, The adjusting seat is a U-shaped seat body, and a movable seat is provided inside the U-shaped seat body. The movable seat is rotatably connected to the side walls on opposite sides of the U-shaped seat body through a rotating connecting shaft.

6. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 5, characterized in that, The movable base is provided with an installation structure that allows the paint spraying base to be installed.

7. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 6, characterized in that, It also includes a drive linkage assembly disposed on the adjustment seat, the movable seat being driven by the drive linkage assembly to rotate within the U-shaped seat body to adjust its angle.

8. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 7, characterized in that, The drive linkage assembly includes a drive plate and a connecting rod connected to each other. A rotary drive component is provided on the adjusting seat. The drive shaft of the rotary drive component is connected to one end of the drive plate, and the other end of the drive plate is connected to the connecting rod.

9. The automatic paint touch-up device for the interior of large-diameter steel pipes according to claim 8, characterized in that, The bottom of the movable seat is provided with a connecting plate, and the connecting plate is provided with a connecting shaft. The other end of the connecting rod is connected to the connecting shaft.

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