Double-head telescopic rotating frame, shot blasting structure, spraying structure and shot blasting and spraying structure

Abstract

The utility model relates to the technical field of surface treatment robots, and discloses a double-head telescopic rotating frame, a shot blasting structure, a spraying structure and a shot blasting and spraying structure. The double-end telescopic rotating frame comprises a hollow rotating frame body of a cuboid structure, a first moving frame movably arranged at one end of the rotating frame body, and a second moving frame movably arranged at the other end of the rotating frame body. A rotating shaft is arranged in the middle of the rotating frame body, a first linear driver for driving the first moving frame to extend outwards or retreat towards the center of the rotating frame body is arranged on the rotating frame body, and a second linear driver for driving the second moving frame to extend outwards or retreat towards the center of the rotating frame body is arranged on the rotating frame body; two symmetrical double stations are formed on the rotating frame body to ingeniously load equipment on the first moving frame and the second moving frame, the equipment integration degree is high, and the equipment cost is saved. And the rotating shaft is driven to rotate, so that the equipment on the double stations flexibly changes the position for processing, and the working efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of surface treatment robots, in particular to a double-head telescopic rotating frame, a shot blasting structure, a spraying structure and a shot blasting spraying structure. Background Art

[0002] Steel pipelines are important channels for the production and operation of petroleum, chemical production, oil gathering and transportation, and water and gas supply systems. They have a wide range of applications and are used in large quantities.

[0003] When the steel pipes are transported to the construction site, they need to be welded to form a steel pipeline. After the two steel pipes are welded, a weld will be formed. The outer weld and the inner weld need to be treated with anti-corrosion to extend the service life of the steel pipeline. When the inner weld is treated with anti-corrosion, the shot blasting robot is used to first perform shot blasting and rust removal on the weld, that is, a certain degree of roughness is generated on the weld surface to increase the area of ​​the workpiece surface where the anti-corrosion layer adheres, thereby increasing the adhesion of the anti-corrosion layer; then a spraying robot is used to heat the steel pipe surface with a heating element, and then epoxy powder is sprayed on the steel pipe surface with a spray gun to solidify the epoxy powder on the steel pipe surface to form an anti-corrosion layer.

[0004] The existing shot blasting robots and spraying robots mainly use a wall climbing device with a publication number of CN116551581A to realize the walking function on the inner wall of the pipeline, that is, the shot blasting mechanism or the spraying mechanism is set on the wall climbing device, and one wall climbing device can only be equipped with one shot blasting mechanism or one spraying mechanism; the shot blasting robot and the spraying robot are independent of each other and cannot be used together, which not only increases the difficulty of the staff to control the shot blasting robot and the spraying robot, but also has low work efficiency. It also considers the equipment cost of purchasing the shot blasting robot and the spraying robot at the same time. In addition, even if a single shot blasting robot or a spraying robot is working, since it is only equipped with one shot blasting mechanism or one spraying mechanism, the shot blasting or spraying efficiency will be low. Therefore, it is urgent to develop a double-station convolute structure to meet various work needs. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a double-head telescopic rotating frame, a shot blasting structure, a spraying structure and a shot blasting spraying structure, aiming to improve the integration of equipment and more efficiently complete the anti-corrosion treatment of welds.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double-head telescopic rotating frame comprises a hollow rotating frame body in a rectangular structure, a first movable frame movably arranged at one end of the rotating frame body, and a second movable frame movably arranged at the other end of the rotating frame body; a rotating shaft is arranged in the middle of the rotating frame body, a first linear drive for driving the first movable frame to extend outward or retreat toward the center of the rotating frame body is arranged on the rotating frame body, and a second linear drive for driving the second movable frame to extend outward or retreat toward the center of the rotating frame body is arranged on the rotating frame body, the end of the first movable frame away from the first linear drive forms a first equipment loading part, and the end of the second movable frame away from the second linear drive forms a second equipment loading part.

[0008] The rotating frame includes four long large tubes extending transversely and serving as corners, and a plurality of connecting large tubes for connecting two adjacent long large tubes.

[0009] The first mobile rack and the second mobile rack each include four long tubes extending laterally and serving as corners, a plurality of connecting tubes for connecting two adjacent long tubes, and a loading rack connected to the outer ends of all the long tubes, wherein a portion of the long tubes is located inside the rotating rack body, and another portion can be located outside the rotating rack body.

[0010] The long large tube is a square tube or a rectangular tube, and the outer side surface of some of the connecting small tubes is provided with a lower pulley abutting against the end surface of the long large tube of the lower layer, and an upper pulley abutting against the end surface of the long large tube of the upper layer.

[0011] The long small tube is provided with a limiting wheel which presses against the inner side surface of the long large tube.

[0012] Each of the loading racks is provided with at least one outward-facing pressing wheel bracket and a pressing wheel rotatably arranged on the pressing wheel bracket.

[0013] The first linear drive and the second linear drive are electric cylinders. An electric cylinder support that matches the electric cylinder is provided in the rotating frame. One end of the electric cylinder is fixed on the electric cylinder support, and the other end is drivingly connected to the first movable frame or the second movable frame.

[0014] A shot blasting spraying structure comprises the double-head telescopic rotating frame, a shot blasting machine arranged on a first equipment loading part of the first moving frame, and a heater and a spray gun arranged on a second equipment loading part of the second moving frame.

[0015] A shot blasting structure comprises the double-head telescopic rotating frame, a shot blasting machine arranged on the first equipment loading part of the first moving frame, and a shot blasting machine arranged on the second equipment loading part of the second moving frame.

[0016] A spraying structure comprises the double-head telescopic rotating frame, a heater and a spray gun arranged on a first equipment loading part of the first movable frame, and a heater and a spray gun arranged on a second equipment loading part of the second movable frame.

[0017] Beneficial effects of the utility model: Compared with the prior art, the double-head telescopic rotating frame provided by the utility model replaces the original wall climbing device, and uses two mutually symmetrical double-stations formed on the rotating frame to cleverly load the equipment on the first mobile frame and the second mobile frame, with high equipment integration and saving equipment costs; and by driving the rotating shaft to rotate, the equipment on the double-station can be flexibly changed for processing, which significantly improves work efficiency. The shot blasting spraying structure, shot blasting structure and spraying structure all have the beneficial effects of the double-head telescopic rotating frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of the shot blasting spraying structure provided by the present invention.

[0019] Figure 2 for Figure 1 A partial enlarged view of the middle L area.

[0020] Figure 3 This is a structural schematic diagram of the spraying structure provided by the utility model.

[0021] Figure 4 The present invention is a schematic structural diagram of the shot blasting structure provided by the present invention.

[0022] Explanation of main component symbols: 1-rotating frame, 11-long large tube, 12-connecting large tube, 2-first mobile frame, 21-first equipment loading part, 22-long small tube, 23-connecting small tube, 24-loading frame, 25-lower pulley, 26-upper pulley, 27-limiting wheel, 28-pressure wheel bracket, 29-pressure wheel, 3-second mobile frame, 31-second equipment loading part, 4-rotating axis, 51-first linear drive, 52-second linear drive, 61-shot blasting machine, 62-heater, 63-spray gun. DETAILED DESCRIPTION

[0023] The utility model provides a double-head telescopic rotating frame, a shot blasting structure, a spraying structure and a shot blasting spraying structure. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0024] See also Figure 1 and Figure 2The utility model provides a double-head telescopic rotating frame, including a rotating frame body 1 that is hollow and has a rectangular structure, a first movable frame 2 that is movably arranged at one end of the rotating frame body 1, and a second movable frame 3 that is movably arranged at the other end of the rotating frame body 1; a rotating shaft 4 is provided in the middle of the rotating frame body 1, and a first linear driver 51 for driving the first movable frame 2 to extend outward or retreat toward the center of the rotating frame body 1 is provided on the rotating frame body 1, and a second linear driver 52 for driving the second movable frame 3 to extend outward or retreat toward the center of the rotating frame body 1 is provided on the rotating frame body 1, and the end of the first movable frame 2 away from the first linear driver 51 forms a first equipment loading part 21, and the end of the second movable frame 3 away from the second linear driver 52 forms a second equipment loading part 31.

[0025] In actual use, the first equipment loading part 21 and the second equipment loading part 31 of the double-head telescopic rotating frame can be equipped with spraying equipment or shot blasting equipment according to needs, so that the double-head telescopic rotating frame has a double-station function. Then, after the double-head telescopic rotating frame is placed in the steel pipe, the axial position of the rotating shaft 4 is adjusted to be concentric with the inner circle of the steel pipe, and the equipment on the first equipment loading part 21 and the second equipment loading part 31 of the double-head telescopic rotating frame is oriented toward the weld at the joint of the two steel pipes. Then, the first linear drive 51 and the second linear drive 52 drive the first movable frame 2 and the second movable frame 3 to extend outward, so that the equipment on the first equipment loading part 21 and the second equipment loading part 31 are close to the weld to meet the equipment working distance. The equipment on the first equipment loading part 21 and the second equipment loading part 31 is started according to work requirements. Finally, the driving device drives the rotating shaft 4 to rotate slowly, so that the equipment on the first equipment loading part 21 and the second equipment loading part 31 work synchronously or in steps to efficiently complete the processing of the weld.

[0026] Compared with the prior art, the double-head telescopic rotating frame provided by the utility model replaces the original wall-climbing device, and utilizes two mutually symmetrical double-stations formed on the rotating frame body 1 to cleverly load the equipment on the first mobile frame 2 and the second mobile frame 3. The equipment has a high degree of integration and saves equipment costs. By driving the rotating shaft 4 to rotate, the equipment on the double-station can be flexibly changed in position for processing, which significantly improves work efficiency.

[0027] Specifically, the rotating frame 1 includes four long large tubes 11 extending laterally and used as corners, and a plurality of connecting large tubes 12 for connecting two adjacent long large tubes 11. The quadrilateral frame structure and the multi-point connection reinforcement design significantly enhance the torsion resistance and overall stability of the rotating frame 1 when operating inside the steel pipe, and can maintain good posture control even in complex or long operations, avoiding structural deformation that affects the accuracy and efficiency of operations. This structure allows the rotating frame 1 to obtain a larger internal space, providing a more spacious operating environment for the first mobile frame 2 and the second mobile frame 3, facilitating the telescopic movement and rotation of the equipment, while also leaving enough operating space for the mounted shot blasting, spraying and other equipment, ensuring a smooth and unobstructed processing process.

[0028] Furthermore, the first mobile frame 2 and the second mobile frame 3 each include four long tubes 22 extending laterally and serving as corners, a plurality of connecting tubes 23 for connecting two adjacent long tubes 22, and a loading frame 24 connected to the outer ends of all the long tubes 22. The quadrilateral frame design of the first mobile frame 2 and the second mobile frame 3 significantly enhances the rigidity and stability of the local structure, especially when the equipment extends out of the rotating frame 1 for operation, it can effectively resist lateral forces and vibrations during the operation, maintain the precise positioning and stable operating state of the equipment, and improve the operating accuracy.

[0029] In addition, a portion of the long tube 22 is located inside the rotating frame 1, and the other portion can be located outside the rotating frame 1. This design allows the mobile frame to better adapt to steel pipes of different diameters, and by adjusting the extension length, it is ensured that the operating equipment can always work closely against the inner wall or weld of the steel pipe, thereby ensuring operating efficiency and quality.

[0030] In this embodiment, the long tube 11 is a square tube or a rectangular tube, and the outer side surface of some of the connecting small tubes 23 is provided with a lower pulley 25 that abuts against the end surface of the long tube 11 of the lower layer, and an upper pulley 26 that abuts against the end surface of the long tube 11 of the upper layer. The motion design of the lower pulley 25 and the upper pulley 26 enables the first mobile frame 2 and the second mobile frame 3 to stably contact the end surfaces of the upper and lower long tubes 11 through the lower pulley 25 and the upper pulley 26 when telescopically moving along the long tube 11, greatly reducing the friction resistance, not only providing a stable guiding effect, but also achieving more accurate position control, especially when telescopically reaching the predetermined working position, it can be quickly and accurately docked, ensuring the precise alignment of the operating equipment and the weld, improving the quality and efficiency of the anti-corrosion treatment, while reducing noise and wear, and extending the service life of the equipment.

[0031] Furthermore, the elongated small tube 22 is provided with a limiting wheel 27 pressed against the inner side of the elongated large tube 11. The limiting wheel 27 is used to position the left and right positions of the first mobile frame 2 and the second mobile frame 3 on the rotating frame body 1 to prevent the elongated small tube 22 from scratching or rigidly rubbing against the elongated large tube 11, thereby ensuring the smoothness of the movement of the first mobile frame 2 and the second mobile frame 3 on the one hand and preventing the first mobile frame 2 and the second mobile frame 3 from shaking left and right on the other hand.

[0032] Preferably, each of the loading racks 24 is provided with at least one outward-facing pressure wheel bracket 28 and a pressure wheel 29 rotatably disposed on the pressure wheel bracket 28. The pressure wheel 29 can be in close contact with the inner wall of the steel pipe during operation, and provide continuous lateral pressure through its own weight or auxiliary driving force, ensuring that the operating equipment on the loading rack 24 maintains close contact with the inner surface of the steel pipe, thereby improving the uniformity and integrity of the processing effect, especially in uneven or slightly curved pipes, this design can significantly improve the quality of operation. The rolling contact of the pressure wheel 29 reduces vibration during operation, especially during rapid rotation or moving operations, which helps to maintain the stable operation of the equipment, reduce operating errors caused by vibration, and ensure operating accuracy and equipment safety.

[0033] Preferably, the first linear drive 51 and the second linear drive 52 are electric cylinders, and an electric cylinder support that matches the electric cylinder is provided in the rotating frame 1, one end of the electric cylinder is fixed on the electric cylinder support, and the other end is connected to the first mobile frame 2 or the second mobile frame 3 by driving. As an electric drive device, the electric cylinder provides higher control accuracy and position feedback capability compared with traditional hydraulic or pneumatic drives. This enables the telescopic action of the first mobile frame 2 and the second mobile frame 3 to be precisely controlled at the millimeter level, ensuring that the operating equipment and the weld maintain the best operating distance, and improving the accuracy and effect of the anti-corrosion treatment. The electric cylinder drive has a fast response characteristic, can start and stop quickly, and ensures the continuity and stability of the operating process. When it is necessary to quickly adjust the operating position or deal with complex working conditions, this advantage of the electric cylinder drive is particularly obvious, which helps to improve the overall operating efficiency. Of course, the first linear drive 51 and the second linear drive 52 can also use hydraulic cylinders or cylinders.

[0034] See Figure 1As shown, the utility model also provides a shot blasting spraying structure, including a double-head telescopic rotating frame of any of the above-mentioned embodiments, a shot blasting machine 61 arranged on the first equipment loading part 21 of the first mobile frame 2, and a heater 62 and a spray gun 63 arranged on the second equipment loading part 31 of the second mobile frame 3. The shot blasting machine 61 performs shot blasting and rust removal on the weld to improve the spraying effect, and the heater 62 and the spray gun 63 are used in coordination to heat the weld and the surrounding area to ensure that the epoxy powder coating begins to melt as soon as it contacts the surface of the steel pipe, which helps the epoxy powder coating particles to better fuse together to form a uniform coating film, and improve the density and adhesion of the coating. The structure has the following advantages: 1. The structure realizes the seamless connection between shot blasting and rust removal and spraying anti-corrosion, simplifies the cumbersome process and operation complexity of multiple equipment conversions in traditional operations, and can complete the pretreatment of the weld inside the steel pipe and the application of the anti-corrosion layer in one stop without changing the equipment, which greatly improves the operation efficiency, shortens the entire anti-corrosion treatment cycle, and reduces the construction cost. 2. Thanks to the precise positioning capability of the double-head telescopic rotating frame, the shot blasting machine 61 and the spraying equipment can be accurately aligned with the weld area, ensuring the thoroughness of the shot blasting and rust removal and the uniformity of the spray anti-corrosion layer, improving the quality and durability of the anti-corrosion treatment. 3. The structure is highly flexible, and the position of the shot blasting machine 61 and the spraying equipment can be adjusted according to different steel pipe diameters and operating requirements, adapting to diverse construction site conditions, and improving the versatility and market competitiveness of the equipment.

[0035] See Figure 4 As shown, the utility model also provides a shot blasting structure, including a double-head telescopic rotating frame of any of the above-mentioned embodiments, a shot blasting machine 61 arranged on the first equipment loading part 21 of the first mobile frame 2, and a shot blasting machine 61 arranged on the second equipment loading part 31 of the second mobile frame 3. The configuration of the double shot blasting machine 61 means that the shot blasting and rust removal operations can be performed on both sides of the weld in the steel pipe or different areas on the same side at the same time, which significantly improves the processing speed, is particularly suitable for the long-distance or large-area weld processing requirements, and greatly shortens the overall construction period. Simultaneous operation on both sides can more comprehensively and deeply remove rust and impurities in the weld and surrounding areas. Compared with single-sided operation, it can achieve a more thorough cleaning effect, improve the adhesion of the subsequent anti-corrosion coating and the anti-corrosion performance of the overall pipeline.

[0036] See Figure 3As shown, the utility model also provides a spraying structure, including a double-head telescopic rotating frame of any of the above-mentioned embodiments, a heater 62 and a spray gun 63 arranged on the first equipment loading part 21 of the first mobile frame 2, and a heater 62 and a spray gun 63 arranged on the second equipment loading part 31 of the second mobile frame 3. The heater 62 can specifically adopt a high-frequency heater 62 or a medium-frequency heater 62. The design of the double heater 62 and the double spray gun 63 makes it possible to heat and spray on both sides of the same weld of the steel pipe at the same time, which significantly improves the operation speed. The two sets of heaters 62 can preheat the surface of the steel pipe more evenly and quickly, ensuring that the best adhesion temperature is reached during epoxy powder spraying, and the double spray gun 63 ensures the uniform application of the anti-corrosion layer, whether on both sides of the inner weld or in a symmetrical position, to achieve consistent coverage thickness and quality, thereby extending the service life of the pipeline.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A double-head telescopic rotating frame, characterized in that: It includes a hollow rotating frame body in a rectangular structure, a first movable frame movably arranged at one end of the rotating frame body, and a second movable frame movably arranged at the other end of the rotating frame body; a rotating axis is arranged in the middle of the rotating frame body, a first linear drive for driving the first movable frame to extend outward or retreat toward the center of the rotating frame body is arranged on the rotating frame body, and a second linear drive for driving the second movable frame to extend outward or retreat toward the center of the rotating frame body is arranged on the rotating frame body, the end of the first movable frame away from the first linear drive forms a first equipment loading part, and the end of the second movable frame away from the second linear drive forms a second equipment loading part.

2. The double-head telescopic rotating frame according to claim 1, characterized in that: The rotating frame includes four long large tubes extending transversely and serving as corners, and a plurality of connecting large tubes for connecting two adjacent long large tubes.

3. The double-head telescopic rotating frame according to claim 2, characterized in that: The first mobile rack and the second mobile rack each include four long tubes extending laterally and serving as corners, a plurality of connecting tubes for connecting two adjacent long tubes, and a loading rack connected to the outer ends of all the long tubes, wherein a portion of the long tubes is located inside the rotating rack body, and another portion can be located outside the rotating rack body.

4. The double-head telescopic rotating frame according to claim 3, characterized in that: The long large tube is a square tube or a rectangular tube, and the outer side surface of some of the connecting small tubes is provided with a lower pulley abutting against the end surface of the long large tube of the lower layer, and an upper pulley abutting against the end surface of the long large tube of the upper layer.

5. The double-head telescopic rotating frame according to claim 4, characterized in that: The long small tube is provided with a limiting wheel which presses against the inner side surface of the long large tube.

6. The double-head telescopic rotating frame according to claim 3, characterized in that: Each of the loading racks is provided with at least one outward-facing pressing wheel bracket and a pressing wheel rotatably arranged on the pressing wheel bracket.

7. The double-head telescopic rotating frame according to claim 1, characterized in that: The first linear drive and the second linear drive are electric cylinders. An electric cylinder support that matches the electric cylinder is provided in the rotating frame. One end of the electric cylinder is fixed on the electric cylinder support, and the other end is drivingly connected to the first movable frame or the second movable frame.

8. Shot blasting spraying structure, characterized in that, It comprises the double-head telescopic rotating frame as described in any one of claims 1 to 7, a shot blasting machine arranged on the first equipment loading part of the first movable frame, and a heater and a spray gun arranged on the second equipment loading part of the second movable frame.

9. Shot blasting structure, characterized in that, It comprises the double-head telescopic rotating frame as described in any one of claims 1 to 7, a shot blasting machine arranged on the first equipment loading part of the first movable frame, and a shot blasting machine arranged on the second equipment loading part of the second movable frame.

10. Spraying structure, characterized in that, It comprises the double-head telescopic rotating frame according to any one of claims 1 to 7, a heater and a spray gun arranged on a first equipment loading part of the first movable frame, and a heater and a spray gun arranged on a second equipment loading part of the second movable frame.

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