A wheeled centrifugal rotating device for pipes

Abstract

The utility model discloses a kind of wheeled centrifugal rotating equipment for pipeline, including base, guide frame, portal frame and multiple pipeline support components arranged side by side. Pipeline support component contains fixed frame, driving friction wheel and driven friction wheel, and clearance for placing pipeline is formed between driving friction wheel and driven friction wheel. Lower pressing wheel component that can move transversely and longitudinally is equipped on portal frame, and its press wheel is located just above clearance. The device is also equipped with jacking trolley for automatic feeding and discharging of pipeline. Motor-driven screw rod adjusts the spacing between friction wheels, and the lower pressing wheel is pressed tightly to form stable clamping. The utility model can adapt to different pipe diameters, realize high-speed stable rotation of pipeline, effectively prevent jumping deviation, significantly improve the uniformity and efficiency of pipeline inner wall cleaning or coating treatment, and has high automation degree.

Description

Technical Field

[0001] This utility model relates to the field of pipeline processing equipment technology, specifically to a wheel-type centrifugal rotating device for pipelines. Background Technology

[0002] Pipelines, as key components for transporting materials, are widely used in many industrial fields such as petroleum, chemical, water supply, and heating. During their manufacturing, maintenance, or repair, it is often necessary to clean the inner wall of the pipeline, spray anti-corrosion coatings, and apply functional coatings (such as wear-resistant and heat-insulating coatings). To ensure the uniformity and high quality of these treatments, the pipeline must rotate stably and uniformly around its central axis.

[0003] Currently, most common pipe rotation devices in the industry employ traditional roller support structures or simple friction transmission methods. These existing technologies typically suffer from the following defects and shortcomings:

[0004] 1. Poor clamping force control: Some devices lack an effective active clamping mechanism. Insufficient clamping force will cause slippage in the friction drive, failing to effectively drive the pipe rotation; excessive clamping force may damage the outer wall of the pipe, especially for pipes with anti-corrosion coatings or softer materials. Achieving a stable and adjustable clamping force is a common technical challenge.

[0005] 2. Poor adaptability and low versatility: Most devices use fixed-gap support wheels or friction wheels, whose clamping position and height are not adjustable, or have a very limited adjustment range. This means that each piece of equipment can usually only handle one or a few pipe diameters. When the production line needs to handle pipes of different specifications (diameter, length), it often requires replacing with special equipment or making cumbersome mechanical adjustments, which seriously affects production efficiency and increases equipment investment costs. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a wheel-type centrifugal rotating device for pipelines, which overcomes the deficiencies of existing technologies. It is reasonably designed, can adapt to different pipe diameters, realizes high-speed and stable rotation of pipelines, effectively prevents jumping and deviation, significantly improves the uniformity and efficiency of pipeline inner wall cleaning or coating treatment, and has a high degree of automation.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A wheeled centrifugal rotary device for pipelines includes a base, with multiple pipeline support assemblies arranged side-by-side at the center of the base. Guide frames are provided on both the left and right sides of each pipeline support assembly. A gantry frame is provided above the pipeline support assemblies, spanning the multiple pipeline support assemblies. Both the gantry frame and the guide frames are fixedly mounted on the base.

[0009] The pipe support assembly includes a fixed frame, which is fixedly installed on a base. A first bearing seat and a second bearing seat are symmetrically installed on the left and right sides above the fixed frame. A first rotating shaft is rotatably connected to the middle of the first bearing seat via a bearing. A second rotating shaft is rotatably connected to the middle of the second bearing seat via a bearing. An active friction wheel is fixedly connected to the outer surface of the first rotating shaft. A driven friction wheel is fixedly connected to the outer surface of the second rotating shaft. A gap for placing the pipe is left between the active friction wheel and the driven friction wheel. A drive wheel is fixedly connected to one end of the first rotating shaft. The drive wheel is connected to the output shaft of a drive motor via a transmission belt.

[0010] The gantry is equipped with a pressure roller assembly, the pressure roller end of which is located directly above the active friction roller and the driven friction roller, and is used to apply stable pressure to the pipeline.

[0011] Preferably, the pressure roller assembly includes a transverse slide rail, a longitudinal slide rod, and a pressure roller. The transverse slide rail is fixedly installed on the side of the crossbeam of the gantry frame. A slide block is slidably connected to the transverse slide rail. A sliding frame is fixedly installed on the outer side of the slide block. The longitudinal slide rod is vertically slidably connected inside the sliding frame. The lower end of the longitudinal slide rod is connected to the middle of the triangular connecting frame through a mounting shaft. Pressure rollers are rotatably connected to both ends of the triangular connecting frame through rotating shafts. The pressure rollers are in contact with the pipe surfaces between the active friction wheel and the driven friction wheel.

[0012] Preferably, sliders are fixedly installed on both the left and right side walls of the inner cavity of the sliding frame, and longitudinal slide rails are fixedly installed on both the left and right sides of the longitudinal slide rod. The longitudinal slide rod is slidably connected to the sliders through the longitudinal slide rails.

[0013] Preferably, a transverse rack is arranged parallel to the transverse slide rail, the transverse rack is fixedly installed on the side of the crossbeam of the gantry frame, a transverse drive motor is fixedly installed on the outer side of the slide block, the output shaft of the transverse drive motor passes through the slide block and is fixedly installed with a first gear, the first gear meshes with the transverse rack for transmission;

[0014] A longitudinal rack is fixedly installed on the side of the longitudinal slide bar, and a longitudinal drive motor is fixedly installed on the inner side of the sliding frame. The output shaft of the longitudinal drive motor passes through the sliding frame and is fixedly installed with a second gear. The second gear meshes with the longitudinal rack for transmission.

[0015] Preferably, a lifting trolley is provided on the side of the guide frame, which is used to move the pipe from the guide frame to the gap position between the active friction wheel and the driven friction wheel or to move it from the gap position onto the guide frame; the upper surface of the base is provided with a guide rail groove in the left and right direction, and the bottom of the lifting trolley is equipped with a traveling wheel that matches the guide rail groove.

[0016] Preferably, a lead screw is rotatably connected inside the fixed frame via a bearing, and a lead screw nut seat is threaded onto the outer surface of the lead screw. The second bearing seat is fixedly installed on the lead screw nut seat, and a lead screw motor is fixedly installed on the outer wall of the fixed frame. The output shaft of the lead screw motor is connected to one end of the lead screw via a coupling.

[0017] Preferably, both the active friction wheel and the driven friction wheel are coated with a polyurethane elastomer coating on their outer circumferential surfaces.

[0018] This invention provides a wheel-type centrifugal rotating device for pipelines, offering the following advantages: Two pressure rollers actively press down, forming a stable force-sealed structure with the lower active and driven friction rollers, achieving uniform circumferential clamping of the pipeline. This effectively suppresses vibration, jumping, and axial movement of the pipeline during high-speed centrifugal rotation, ensuring extremely smooth rotation around its central axis. Furthermore, the driven friction roller is driven by a screw and nut mechanism, allowing precise adjustment of the distance between the active and driven friction rollers to easily accommodate pipelines of different diameters. The vertical drive motor controls the lifting and lowering of the pressure roller assembly, flexibly adjusting the height of the clamping center; the horizontal drive motor controls the horizontal movement of the pressure roller assembly, fine-tuning the horizontal position of the clamping point. This enables efficient and precise handling of various pipeline specifications, from small to large diameters, greatly expanding the equipment's application range and reducing the investment cost of replacing specialized equipment due to changes in product specifications. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of this utility model or the prior art will be briefly introduced below.

[0020] Figure 1 A schematic diagram of the structure of this utility model in use;

[0021] Figure 2 A schematic diagram of the structure of this utility model;

[0022] Figure 3 A schematic diagram of the structure above the base in this utility model;

[0023] Figure 4 A schematic diagram of the pipe support assembly in this utility model;

[0024] Figure 5 A schematic diagram of the lower pressure roller assembly in this utility model;

[0025] Figure 6 A schematic diagram of the rear structure of the lower pressure roller assembly in this utility model;

[0026] Explanation of the labels in the diagram:

[0027] 1. Base; 2. Guide frame; 3. Gantry frame; 4. Fixed frame; 5. First bearing seat; 6. Second bearing seat; 7. First rotating shaft; 8. Second rotating shaft; 9. Active friction wheel; 10. Driven friction wheel; 11. Drive wheel; 12. Screw motor; 13. Drive motor; 14. Transverse slide rail; 15. Longitudinal slide bar; 16. Pressure roller; 17. Slide block; 18. Sliding frame; 19. Triangular connecting frame; 20. Slider; 21. Longitudinal slide rail; 22. Transverse rack; 23. Transverse drive motor; 24. Longitudinal rack; 25. Longitudinal drive motor; 26. Lifting trolley; 27. Guide rail groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0029] Example 1, as Figure 1-6 As shown, a wheeled centrifugal rotary device for pipelines includes a base 1, with multiple pipeline support assemblies arranged side-by-side in the middle of the upper part of the base 1. Guide frames 2 are provided on both the left and right sides of each pipeline support assembly. A gantry frame 3 is provided above the pipeline support assemblies, spanning the multiple pipeline support assemblies. Both the gantry frame 3 and the guide frames 2 are fixedly mounted on the base 1.

[0030] The pipe support assembly includes a fixed frame 4, which is fixedly installed on the base 1. A first bearing seat 5 and a second bearing seat 6 are symmetrically installed on the left and right sides above the fixed frame 4. A first rotating shaft 7 is rotatably connected to the middle of the first bearing seat 5 through a bearing. A second rotating shaft 8 is rotatably connected to the middle of the second bearing seat 6 through a bearing. An active friction wheel 9 is fixedly connected to the outer surface of the first rotating shaft 7. A driven friction wheel 10 is fixedly connected to the outer surface of the second rotating shaft 8. A gap for placing the pipe is left between the active friction wheel 9 and the driven friction wheel 10. A drive wheel 11 is fixedly connected to one end of the first rotating shaft 7. The drive wheel 11 is connected to the output shaft of the drive motor 13 through a transmission belt.

[0031] A pressure roller assembly is installed on the gantry 3. The pressure roller end of the pressure roller assembly is located directly above the active friction roller 9 and the driven friction roller 10, and is used to apply stable pressure to the pipeline.

[0032] Working principle:

[0033] In use, the pipe to be processed is hoisted or rolled onto one of the guide frames 2. The guide frame 2 guides the pipe to move between the active friction wheel 9 and the driven friction wheel 10. At this point, the pipe's own weight causes it to make effective contact with the outer circumferential surfaces of the active and driven friction wheels. Then, the lower pressure wheel assembly on the gantry 3 is moved to directly above the pipe, and the pressure wheel 16 in the lower pressure wheel assembly is moved downward. This applies downward pressure to the pipe, firmly pressing the pressure wheel 16 against the outer wall at the top of the pipe. Thus, the pipe is stably constrained by four points of contact formed by the active friction wheel 9, the driven friction wheel 10, and the two pressure wheels 16, achieving precise circumferential positioning and effectively preventing jumping and axial movement that may occur during high-speed rotation.

[0034] Subsequently, the drive motor 13 is started, which drives the drive wheel 11 and the first rotating shaft 7 to rotate via the transmission belt, thereby driving the active friction wheel 9 to rotate. The active friction wheel 9 drives the pipe to rotate at a constant speed around its own central axis through the friction between its surface and the outer wall of the pipe. The driven friction wheel rotates passively under the action of friction. This allows the pipe to maintain stable rotation under the synergistic action of the active and driven friction wheels, at which point operations such as high-pressure cleaning, spraying, and curing of the inner wall of the pipe can be performed.

[0035] After the processing is completed, the drive motor 13 is stopped, the pressure roller assembly rises and resets, releasing the pressure on the pipeline. The processed pipeline is then moved to the guide frame 2 on the other side and removed from the equipment's working area by rolling or hoisting, completing the processing flow for a single pipeline. The next pipeline feeding cycle can then begin.

[0036] In Example 2, as a further preferred embodiment of Example 1, the pressure roller assembly includes a transverse slide rail 14, a longitudinal slide rod 15, and a pressure roller 16. The transverse slide rail 14 is fixedly installed on the side of the crossbeam of the gantry 3. A slide seat 17 is slidably connected to the transverse slide rail 14. A sliding frame 18 is fixedly installed on the outer side of the slide seat 17. The longitudinal slide rod 15 is vertically slidably connected inside the sliding frame 18. The lower end of the longitudinal slide rod 15 is connected to the middle of the triangular connecting frame 19 through a mounting shaft. The left and right ends of the triangular connecting frame 19 are rotatably connected to the pressure roller 16 through a rotating shaft. The pressure roller 16 is in contact with the pipe surface between the active friction wheel 9 and the driven friction wheel 10.

[0037] The sliding engagement between the transverse slide rail 14 and the slide block 17 provides the entire pressure roller assembly with horizontal adjustment freedom along the radial direction of the pipe (i.e., the transverse direction of the gantry). This allows the pressure point positions of the two pressure rollers 16 to be precisely adjusted according to the specific location of the pipe, ensuring that the pressure applied by the pressure rollers is evenly distributed on both sides of the top of the pipe. This avoids the introduction of additional torque due to the pressure point deviating from the center, which could lead to pipe instability. Furthermore, the vertical sliding connection between the longitudinal slide rod 15 and the sliding frame 18 provides independent vertical downward or upward stroke for the pressure rollers 16, ensuring that the pressure rollers 16 can adaptively adjust their height when contacting the pipe, avoiding damage to the pipe wall caused by rigid impact. Additionally, a triangular connecting frame 19 connects both pressure rollers 16 simultaneously, causing them to generate two downward pressures at the top of the pipe. These pressures, combined with the two supporting forces of the lower active and driven friction wheels, form a symmetrical and evenly distributed clamping force in the circumferential direction. This four-point clamping structure forms a stable force-sealing system that can effectively counteract the centrifugal force and vibration generated when the pipeline rotates at high speed, fundamentally suppressing the radial runout and axial movement of the pipeline, and providing a crucial stability guarantee for high-quality centrifugal processing.

[0038] In Example 3, as a further preferred embodiment of Example 2, sliders 20 are fixedly installed on both the left and right side walls of the inner cavity of the sliding frame 18, and longitudinal slide rails 21 are fixedly installed on both the left and right sides of the longitudinal slide rod 15. The longitudinal slide rod 15 is slidably connected to the sliders 20 through the longitudinal slide rails 21. By symmetrically installing sliders 20 on both the left and right side walls of the inner cavity and providing corresponding longitudinal slide rails 21 on both sides of the longitudinal slide rod 15, a double-sided sliding guide structure is formed, thereby effectively ensuring that the longitudinal slide rod 15 can only perform high-precision linear motion in a strictly vertical direction, providing an extremely stable and precise motion trajectory for the pressure roller assembly.

[0039] In Example 4, as a further preferred embodiment of Example 2, a transverse rack 22 is arranged parallel to the transverse slide rail 14. The transverse rack 22 is fixedly installed on the side of the crossbeam of the gantry frame 3. A transverse drive motor 23 is fixedly installed on the outer side of the slide block 17. The output shaft of the transverse drive motor 23 passes through the slide block 17 and is fixedly installed with a first gear. The first gear meshes with the transverse rack 22 for transmission.

[0040] A longitudinal rack 24 is fixedly installed on the side of the longitudinal slide bar 15, and a longitudinal drive motor 25 is fixedly installed on the inner side of the sliding frame 18. The output shaft of the longitudinal drive motor 25 passes through the sliding frame 18 and is fixedly installed with a second gear. The second gear meshes with the longitudinal rack 24 for transmission.

[0041] Therefore, when the pressure roller 16 is adjusted horizontally, the first gear driven by the transverse drive motor 23 meshes with the fixed transverse rack 22, which can precisely control the horizontal movement of the slide block 17 and its entire lower pressure roller assembly along the pipe axis. This ensures that the center of the clamping circle formed by the final pressing point of the pressure roller 16 and the support points of the two friction wheels below coincides with the theoretical central axis of the pipe, achieving "centering" clamping and ensuring the smoothness of subsequent pipe rotation. When the pressure roller 16 is lifted vertically, the second gear driven by the longitudinal drive motor 25 meshes with the longitudinal rack 24, which can precisely control the lifting stroke and speed of the longitudinal slide bar 15. This not only achieves rapid lifting of the pressure roller 16, but also, in this embodiment, allows for precise control of the clamping force of the pressure roller 16 through servo control of the longitudinal drive motor 25. This adapts to pipes of different diameters, ensuring that the two friction wheels fit tightly against the outer wall of the pipe, providing sufficient driving friction without being too tight and causing pipe deformation or damage.

[0042] In Example 5, as a further preferred embodiment of Example 1, a lifting trolley 26 is provided on the side of the guide frame 2. The lifting trolley 26 is used to move the pipe from the guide frame 2 to the gap position between the active friction wheel 9 and the driven friction wheel 10 or to move it from the gap position onto the guide frame 2. A guide rail groove 27 is provided on the upper surface of the base 1 along the left and right direction, and the bottom of the lifting trolley 26 is equipped with a traveling wheel that matches the guide rail groove 27.

[0043] Therefore, when it is necessary to move the pipe to be processed between the active and driven friction wheels, the pipe can be smoothly lifted from the guide frame by a lifting trolley, making it detach from the surface of the guide frame 2. Then, the lifting trolley is controlled to move along the guide rail groove to accurately deliver the pipe between the active and driven friction wheels, thereby achieving rapid positioning and clamping of the pipe. In this embodiment, the lifting trolley 26 is existing technology, specifically using an electric screw lifting mechanism, which operates smoothly and has high positioning accuracy, with real-time feedback of position information from sensors. Similarly, when it is necessary to remove the processed pipe from between the active and driven friction wheels, the lifting trolley can be restarted to smoothly lift the pipe and return it along the guide rail groove to the guide frame 2 on the other side, achieving automatic unloading of the pipe. This process requires no manual intervention, significantly improving work efficiency and safety. Furthermore, while one pipe is undergoing centrifugal rotation processing, the lifting trolley 26 can prepare for loading the next pipe, achieving seamless connection between processes, greatly reducing equipment idle waiting time, and thus significantly improving the production efficiency of the entire production line. Meanwhile, the guide rail groove 27 precisely guides the traveling wheels, ensuring that the lifting trolley can run along the preset straight path every time, and finally accurately and repeatedly transports the pipeline to the predetermined position directly below the active friction wheel and the driven friction wheel.

[0044] In Example 6, as a further preferred embodiment of Example 1, a lead screw is rotatably connected to the inside of the fixed frame 4 via a bearing. A lead screw nut seat is threaded onto the outer surface of the lead screw. A second bearing seat 6 is fixedly mounted on the lead screw nut seat. A lead screw motor 12 is fixedly mounted on the outer wall of the fixed frame 4. The output shaft of the lead screw motor 12 is connected to one end of the lead screw via a coupling. Therefore, when processing pipes of different diameters, the lead screw motor 12 can be controlled to rotate forward or backward to drive the lead screw to rotate, thereby driving the lead screw nut seat, the second bearing seat 6 mounted thereon, and the driven friction wheel 10 to move horizontally together, thus adjusting the distance between the driving wheel and the driven wheel. This process can adapt to pipes of different diameters, ensuring that the two friction wheels can fit tightly against the outer wall of the pipe and provide sufficient driving friction. Furthermore, the self-locking characteristic of the lead screw nut seat itself ensures that the position after the distance adjustment is stable and reliable, preventing the driven friction wheel from shifting due to vibration or force during processing, thereby ensuring the stability and coaxiality of the pipe during high-speed rotation.

[0045] Both the active friction wheel 9 and the driven friction wheel 10 are coated with a polyurethane elastomer coating on their outer circumferential surfaces. This polyurethane elastomer coating effectively increases the coefficient of friction between the active and driven friction wheels 9 and the outer wall of the pipe, significantly improving drive reliability and preventing slippage during high-speed rotation. Simultaneously, the elasticity and flexibility of the polyurethane elastomer buffer contact pressure, preventing mechanical damage to the pipe surface. It also absorbs minor vibrations and noise generated during high-speed pipe rotation, resulting in smoother equipment operation. Furthermore, the polyurethane coating exhibits excellent wear resistance and anti-aging properties, maintaining stable friction performance under long-term continuous operation, reducing maintenance frequency and replacement costs.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wheel-type centrifugal rotary device for pipelines, characterized in that: The system includes a base (1), on which multiple pipe support components are arranged side by side in the middle. Guide frames (2) are provided on both the left and right sides of each pipe support component. A gantry frame (3) is provided above each pipe support component, spanning the multiple pipe support components. Both the gantry frame (3) and the guide frames (2) are fixedly installed on the base (1). The pipe support assembly includes a fixed frame (4), which is fixedly installed on the base (1). A first bearing seat (5) and a second bearing seat (6) are symmetrically installed on the left and right sides above the fixed frame (4). A first rotating shaft (7) is rotatably connected to the middle of the first bearing seat (5) through a bearing. A second rotating shaft (8) is rotatably connected to the middle of the second bearing seat (6) through a bearing. An active friction wheel (9) is fixedly connected to the outer surface of the first rotating shaft (7). A driven friction wheel (10) is fixedly connected to the outer surface of the second rotating shaft (8). A gap for placing the pipe is left between the active friction wheel (9) and the driven friction wheel (10). A drive wheel (11) is fixedly connected to one end of the first rotating shaft (7). The drive wheel (11) is connected to the output shaft of the drive motor (13) through a transmission belt. The gantry (3) is equipped with a pressure roller assembly. The pressure roller end of the pressure roller assembly is located directly above the active friction roller (9) and the driven friction roller (10) to apply stable pressure to the pipeline.

2. The wheel-type centrifugal rotating device for pipelines according to claim 1, characterized in that: The pressure roller assembly includes a transverse slide rail (14), a longitudinal slide rod (15), and a pressure roller (16). The transverse slide rail (14) is fixedly installed on the side of the crossbeam of the gantry frame (3). A slide seat (17) is slidably connected to the transverse slide rail (14). A sliding frame (18) is fixedly installed on the outer side of the slide seat (17). The longitudinal slide rod (15) is vertically slidably connected inside the sliding frame (18). The lower end of the longitudinal slide rod (15) is connected to the middle of the triangular connecting frame (19) through an installation shaft. The left and right ends of the triangular connecting frame (19) are rotatably connected to the pressure roller (16) through a rotating shaft. The pressure roller (16) is in contact with the pipe surface between the active friction wheel (9) and the driven friction wheel (10).

3. A wheel-type centrifugal rotating device for pipelines according to claim 2, characterized in that: The sliding frame (18) has sliders (20) fixedly installed on both the left and right sides of its inner cavity, and longitudinal slide rails (21) fixedly installed on both the left and right sides of the longitudinal slide rod (15). The longitudinal slide rod (15) is slidably connected to the slider (20) through the longitudinal slide rails (21).

4. A wheel-type centrifugal rotating device for pipelines according to claim 2, characterized in that: A transverse rack (22) is arranged parallel to the transverse slide rail (14). The transverse rack (22) is fixedly installed on the side of the crossbeam of the gantry frame (3). A transverse drive motor (23) is fixedly installed on the outer side of the slide block (17). The output shaft of the transverse drive motor (23) passes through the slide block (17) and is fixedly installed with a first gear. The first gear meshes with the transverse rack (22) for transmission. A longitudinal rack (24) is fixedly installed on the side of the longitudinal slide bar (15), and a longitudinal drive motor (25) is fixedly installed on the inner side of the sliding frame (18). The output shaft of the longitudinal drive motor (25) passes through the sliding frame (18) and is fixedly installed with a second gear. The second gear meshes with the longitudinal rack (24) for transmission.

5. A wheel-type centrifugal rotating device for pipelines according to claim 1, characterized in that: The guide frame (2) is provided with a lifting trolley (26) on its side. The lifting trolley (26) is used to move the pipe from the guide frame (2) to the gap position between the active friction wheel (9) and the driven friction wheel (10) or to move it from the gap position onto the guide frame (2). The upper surface of the base (1) is provided with a guide rail groove (27) in the left and right direction. The bottom of the lifting trolley (26) is equipped with a traveling wheel that matches the guide rail groove (27).

6. A wheel-type centrifugal rotating device for pipelines according to claim 1, characterized in that: The fixed frame (4) is rotatably connected to a lead screw through a bearing inside. The lead screw is connected to a lead screw nut seat through a thread on its outer surface. The second bearing seat (6) is fixedly installed on the lead screw nut seat. The lead screw motor (12) is fixedly installed on the outer wall of the fixed frame (4). The output shaft of the lead screw motor (12) is connected to one end of the lead screw through a coupling.

7. A wheel-type centrifugal rotating device for pipelines according to claim 1, characterized in that: Both the active friction wheel (9) and the driven friction wheel (10) are covered with a polyurethane elastomer coating on their outer circumferential surfaces.

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