Outer track structure

Abstract

The utility model relates to the technical field of steel pipe outer surface treatment robots, and discloses an outer track structure which comprises a top arc module, a left arc module and a right arc module, the left arc module and the right arc module are movably connected to the left side and the right side of the top arc module, and the bottom end of the left arc module and the bottom end of the right arc module can be connected through a lock catch assembly. The top arc module, the left arc module and the right arc module are enclosed to form an annular track, and the second transmission section, the first transmission section and the third transmission section are sequentially connected with one another to form an annular traction piece; and a plurality of jacking assemblies for jacking the outer surface of the pipeline are arranged on the inner wall surfaces of the top arc module, the left arc module and the right arc module. The outer track structure provided by the utility model can be matched with the walking trolley with a simpler structure for use, so that the equipment cost is reduced, the walking trolley and shot blasting or spraying equipment carried by the walking trolley can accurately move along a preset circumferential path, the problem of track deviation caused by slipping is effectively avoided, and the service life of the outer track structure is prolonged. And the uniformity and integrity of preservative treatment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe outer surface processing robots, in particular to an outer track 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 outer weld is treated with FBE anti-corrosion, the weld is first treated with shot blasting and rust removal by a shot blasting robot, that is, a certain degree of roughness is generated on the weld surface to increase the area of ​​the workpiece surface to which 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 FBE anti-corrosion layer.

[0004] Whether it is a shot blasting robot or a spraying robot, both use a wall climbing device with a publication number of CN116551581A to climb the wall in a circular path beside the weld on the outer wall of the pipeline. Since the wall climbing device relies on a magnetic wheel group to climb the wall autonomously, and there is no track to constrain the climbing direction of the wall climbing device, once the wall climbing device slips during walking, if the climbing path of the shot blasting robot or the spraying robot is not adjusted in time, the actual climbing trajectory may deviate significantly from the preset climbing trajectory. On the one hand, the outer weld area to be shot blasted cannot be fully shot blasted, affecting the shot blasting effect of the area to be shot blasted and reducing the paint quality of the subsequent painting process; on the other hand, the outer weld area that requires heating and spraying cannot be fully sprayed, seriously affecting the anti-corrosion quality.

[0005] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content

[0006] In view of the above-mentioned deficiencies of the prior art, the purpose of the present utility model is to provide an outer track structure, which is designed to be able to detachably embrace a steel pipeline to form a walking guide for a traveling trolley loaded with anti-corrosion treatment equipment.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An outer track structure comprises a top arc module, a left arc module and a right arc module movably connected on the left and right sides of the top arc module, a first transmission section arranged on the outer surface of the top arc module, a second transmission section arranged on the outer surface of the left arc module, and a third transmission section arranged on the outer surface of the right arc module; the bottom ends of the left arc module and the right arc module can be engaged by a locking assembly, so that the top arc module, the left arc module and the right arc module are enclosed to form a circular track, and the second transmission section, the first transmission section and the third transmission section are sequentially connected to each other to form a circular traction member; a plurality of tightening assemblies for tightening the outer surface of a pipe are arranged on the inner wall surfaces of the top arc module, the left arc module and the right arc module.

[0009] As a further improvement of the above technical solution, the second transmission section, the first transmission section and the third transmission section are chains, the two ends of the first transmission section are respectively connected to the top ends of the second transmission section and the third transmission section, and the bottom ends of the second transmission section and the third transmission section are detachably connected.

[0010] As a further improvement of the above technical solution, the circular ring traction member is located in the middle of the outer surface of the circular ring track.

[0011] As a further improvement of the above technical solution, a limiting convex strip for limiting the forward and backward movement of the circular ring traction member is provided on the circular ring track.

[0012] As a further improvement of the above technical solution, the top arc module is connected to the left arc module and the right arc module respectively through hinges.

[0013] As a further improvement of the above technical solution, the locking assembly includes a wedge block arranged at the bottom of the left arc module and a buckle arranged at the bottom of the right arc module, and the buckle buckles the wedge block to tightly connect the left arc module and the right arc module.

[0014] As a further improvement of the above technical solution, the top arc module, the left arc module and the right arc module are flexible thin plates.

[0015] As a further improvement of the above technical solution, the tightening assembly is a chuck and a push rod threadedly connected to the chuck, the push rod includes a pressure pad and a hexagonal bolt with a head fixed on the pressure pad; a plurality of groups of inner ring interlayers are welded on the inner wall of the circular track, each group of inner ring interlayers includes two inner ring rings arranged at intervals, and an inner cavity is formed between the two inner ring rings for the top of the chuck to be embedded, and the end of the hexagonal bolt away from the pressure pad extends into the inner cavity.

[0016] As a further improvement of the above technical solution, the top arc module is provided with a first lifting ring, the left arc module is provided with a second lifting ring, and the right arc module is provided with a third lifting ring.

[0017] As a further improvement of the above technical solution, two first hanging rings are provided and are arranged symmetrically on the left and right.

[0018] Beneficial effects of the utility model: Compared with the prior art, the outer track structure provided by the utility model can be adapted to the use of a trolley with a simpler structure, simplifying the equipment cost. The circular track composed of the top arc module, the left arc module and the right arc module embraces the outer wall of the steel pipe, and cooperates with the transmission connection between the circular traction member and the trolley to ensure that the trolley and the shot blasting or spraying equipment carried by it can move accurately along the predetermined circular path, effectively avoiding the problem of track deviation caused by slipping, and improving the uniformity and integrity of the anti-corrosion treatment. The outer track structure is flexibly designed and can be appropriately adjusted according to steel pipes of different diameters. It has good versatility and adaptability, is suitable for anti-corrosion treatment operation scenes of steel pipes of various specifications, and improves the utilization rate and economic benefits of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The outer track structure provided by the utility model is a three-dimensional Figure 1 .

[0020] Figure 2 The three-dimensional outer track structure provided by the utility model Figure 2 .

[0021] Figure 3 It is a three-dimensional diagram of the outer track structure wrapped around the steel pipe and the traveling trolley installed on the outer track structure.

[0022] Figure 4 A three-dimensional view of the tightening assembly.

[0023] Description of the main component symbols: 1-circular track, 11-top arc module, 12-left arc module, 13-right arc module, 2-circular traction member, 21-first transmission section, 22-second transmission section, 23-third transmission section, 3-limiting convex strip, 4-locking assembly, 41-wedge block, 42-buckle, 5-tightening assembly, 51-clamp, 52-top rod, 521-pressure pad, 522-hexagonal bolt, 6-inner ring interlayer, 61-inner ring, 62-inner chamber, 71-first lifting ring, 72-second lifting ring, 73-third lifting ring, 8-traveling trolley, 9-steel pipe. DETAILED DESCRIPTION

[0024] The utility model provides an outer track 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.

[0025] See also Figure 1-Figure 3 The utility model provides an outer track structure, including a top arc module 11, a left arc module 12 and a right arc module 13 movably connected on the left and right sides of the top arc module 11, a first transmission section 21 arranged on the outer surface of the top arc module 11, a second transmission section 22 arranged on the outer surface of the left arc module 12, and a third transmission section 23 arranged on the outer surface of the right arc module 13, the bottom ends of the left arc module 12 and the right arc module 13 can be engaged by a locking assembly 4, so that the top arc module 11, the left arc module 12 and the right arc module 13 are enclosed to form a circular track 1, and the second transmission section 22, the first transmission section 21 and the third transmission section 23 are sequentially connected to each other to form a circular traction member 2; a plurality of tightening assemblies 5 for tightening the outer surface of the pipeline are arranged on the inner wall surfaces of the top arc module 11, the left arc module 12 and the right arc module 13.

[0026] The steel pipes will be transported to the construction site for segmented welding to form a steel pipeline 9. Since a weld will be formed after the two steel pipes are welded, the outer weld needs to be treated with anti-corrosion before the steel pipes are pushed into the tunnel to extend the service life of the steel pipeline 9.

[0027] In fact, when the outer track structure is not in use, the outer track structure is lifted by a crane so that it is located above the steel pipe 9, the left arc module 12 and the right arc module 13 are separated from each other and are in an unfolded state, and a walking trolley 8 loaded with shot blasting and / or spraying equipment is provided on the top arc module 11. When the weld to be processed moves to the bottom of the outer track structure, the crane drives the outer track structure to descend, so that the top arc module 11 surrounds the outside of the steel pipe 9, and then as the left arc module 12 and the right arc module 13 are closed and engaged with the locking assembly 4, the top arc module 11, the left arc module 12 and the right arc module The circular track 1 enclosed by the support 13 is sleeved on the steel pipe 9, and then the bottom ends of the second transmission section 22 and the third transmission section 23 are connected to form a circular traction member 2 that is transmission-connected to the traveling trolley 8. Finally, all the tightening components 5 are adjusted so that one end of the tightening component 5 is pressed against the outer wall of the steel pipe 9, and the other end generates an outward expansion force on the circular track 1, so that the circular track 1 is tensioned outward, so that the circular track 1 embraces the steel pipe 9. Even after the circular track 1 is separated from the crane, the circular track 1 is still concentric with the steel pipe 9 under the coordinated support of all the tightening components 5. The traveling trolley 8 cooperates with the circular traction member 2 to form a circumferential travel power, and the wheels of the traveling trolley 8 travel under the guidance of the circular track 1, ensuring that the shot blasting and / or spraying equipment on the traveling trolley 8 also accurately travels in a circular path, solving the problem of the travel path of the traveling trolley 8 being offset due to the slipping problem.

[0028] Compared with the prior art, the outer track structure provided by the utility model can be adapted to the use of the walking trolley 8 with a simpler structure, simplifying the equipment cost. The circular track 1 composed of the top arc module 11, the left arc module 12 and the right arc module 13 embraces the outer wall of the steel pipe, and cooperates with the transmission connection between the circular traction member 2 and the walking trolley 8 to ensure that the walking trolley 8 and the shot blasting or spraying equipment carried by it can move accurately along the predetermined circular path, effectively avoiding the problem of track deviation caused by slipping, and improving the uniformity and integrity of the anti-corrosion treatment. The outer track structure is flexible in design and can be appropriately adjusted according to steel pipes of different diameters. It has good versatility and adaptability, is suitable for anti-corrosion treatment operation scenes of steel pipes of various specifications, and improves the utilization rate and economic benefits of the equipment.

[0029] Specifically, the second transmission section 22, the first transmission section 21 and the third transmission section 23 are chains, the two ends of the first transmission section 21 are respectively connected to the top ends of the second transmission section 22 and the third transmission section 23, and the bottom ends of the second transmission section 22 and the third transmission section 23 are detachably connected. The walking trolley 8 is provided with a sprocket that cooperates with the chain. The sprocket is driven by a motor to enable the walking trolley 8 to form a driving force, ensuring that the movement of the walking trolley 8 along the circular track 1 is both accurate and efficient. Compared with the active walking of the magnetic wheels in the existing wall climbing settings or the wheels of the walking trolley 8 are designed to walk actively, the engagement of the sprocket and the chain can solve the problem of slipping, and also play a role in guiding the circumferential walking of the walking trolley 8 to a certain extent. The motor can provide stable and adjustable power output, making the walking speed and position control more precise, and improving the accuracy and uniformity of the anti-corrosion operation.

[0030] The chain has the characteristics of easy disassembly and assembly, high load-bearing capacity and strong applicability. As a traction medium, it can not only flexibly adapt to the contour changes of the circular track 1 in the expanded state and the closed state, but also effectively buffer the impact caused by shot blasting and spraying operations during the movement, ensuring the smooth operation of the traveling trolley 8, and maintaining the continuity and stability of the operation even under complex working conditions.

[0031] In fact, the chain is composed of inner links and outer links connected alternately one by one. In order to cope with the frequent disassembly and assembly of the bottom ends of the second transmission section 22 and the third transmission section 23, the bottom ends of the second transmission section 22 and the third transmission section 23 are connected by a quick-connect link (not shown in the figure). The quick-connect link is usually composed of two halves, each of which has a special spring mechanism or a tenon structure inside, so that the two halves can be easily docked and locked together without the need for a traditional chain pin. The staff can open and close the quick-connect link by manually pressing or using a simple tool, without the need for a special chain tool, which greatly simplifies the chain disconnection and connection process.

[0032] The circular traction member 2 is located in the middle of the outer surface of the circular track 1, that is, the design of arranging the chain in the middle of the circular track 1 helps the walking trolley 8 to maintain center balance when running on the circular track 1, reduce deviation and shaking, and maintain good stability and control accuracy even in high-speed or long-distance operation, further improving the quality of anti-corrosion treatment.

[0033] Preferably, the circular track 1 is provided with a limiting convex strip 3 for limiting the forward and backward movement of the circular traction member 2, thereby ensuring that the sprocket and the chain can always be engaged for transmission, effectively preventing the circular traction member 2 from slipping forward and backward during operation, and ensuring that the walking trolley 8 is always in a predetermined precise position, further improving the accuracy and consistency of the anti-corrosion treatment operation, and reducing the operation error caused by equipment displacement.

[0034] Specifically, the top arc module 11 is connected to the left arc module 12 and the right arc module 13 respectively through hinges (not shown in the figure). The hinges allow the left arc module 12 and the right arc module 13 to be flexibly flipped relative to the top arc module 11, simplifying the assembly and disassembly steps of the outer track structure. Workers only need simple operations to complete the opening and closing of the modules, greatly shortening the time for preparation and finishing work, and improving work efficiency.

[0035] Furthermore, the locking assembly includes a wedge block 41 disposed at the bottom of the left arc module 12 and a buckle 42 disposed at the bottom of the right arc module 13. The buckle 42 buckles the wedge block 41 to tightly connect the left arc module 12 and the right arc module 13. The locking design of the wedge block 41 and the buckle 42 allows the left and right arc modules 13 to be quickly and firmly connected, which simplifies the on-site assembly process and saves work time. At the same time, when disassembly is required, the unlocking operation is simple and quick, which improves the flexibility of the operation.

[0036] The top arc module 11, the left arc module 12 and the right arc module 13 are flexible thin plates. On the one hand, the flexible thin plate material can better adapt to the surface of steel pipes of different diameters and shapes, and can tightly surround even slightly irregular or deformed. Under the outward pushing action of the tightening component 5, the flexible thin plate also forms a certain expansion deformation, thereby achieving the purpose of tensioning and fixing the chain, ensuring that the chain will not slide by itself during operation, and improving the application flexibility and adaptation range of the outer track structure under various working conditions.

[0037] See also Figure 4In this embodiment, the clamping assembly 5 is a clamp head 51 and a push rod 52 threadedly connected to the clamp head 51, and the push rod 52 includes a pressure pad 521 and a hexagonal bolt 522 whose head is fixed on the pressure pad 521; a plurality of groups of inner ring sandwiches 6 are welded on the inner wall of the circular track 1, and each group of inner ring sandwiches 6 includes two inner rings 61 arranged at intervals, and an inner chamber 62 is formed between the two inner rings 61 for the top of the clamp head 51 to be embedded, and the end of the hexagonal bolt 522 away from the pressure pad 521 extends into the inner chamber 62. The threaded connection between the clamp head 51 and the push rod 52 allows precise adjustment of the clamping force. By rotating the hexagonal bolt 522 with a tool, the pressure of the pressure pad 521 on the steel pipe can be gradually increased or decreased, ensuring that the clamping force is evenly distributed and controllable, effectively preventing damage to the steel pipe or structural instability caused by excessive or insufficient clamping, or preventing excessive expansion of the circular track 1.

[0038] Of course, the clamp head 51 can be welded and fixed on the inner ring sandwich 6 to reduce the trouble of installing and disassembling the clamping component 5. The clamp head 51 can also be independent of the inner ring sandwich 6.

[0039] In order to enable the outer rail structure to be hoisted and assembled with the steel pipe and separated and disassembled, the top arc module 11 is provided with a first hoisting ring 71, the left arc module 12 is provided with a second hoisting ring 72, and the right arc module 13 is provided with a third hoisting ring 73. By directly setting hoisting rings on each module, the hoisting operation is more flexible. Each module can be hoisted independently to ensure that after the top arc module 11 is hoisted into place, the left arc module 12 and the right arc module 13 can independently control their positions, and the left arc module 12 and the right arc module 13 can be accurately aligned along the predetermined track, reducing the risk of misalignment or collision when closed, and improving the accuracy and efficiency of assembly.

[0040] Furthermore, the first lifting rings 71 are provided with two and are symmetrically arranged on the left and right. With such an arrangement, on the one hand, the traveling trolley 8 can be avoided when the top arc module 11 is lifted, and on the other hand, the two symmetrically arranged first lifting rings 71 ensure that the load during lifting can be more evenly distributed, avoiding the tilt or imbalance that may be caused by the single lifting point load bearing, and improving the safety and stability of the lifting operation.

[0041] 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.

[0042] 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.

[0043] 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. An outer track structure, characterized in that: It includes a top arc module, a left arc module and a right arc module movably connected on the left and right sides of the top arc module, a first transmission section arranged on the outer surface of the top arc module, a second transmission section arranged on the outer surface of the left arc module, and a third transmission section arranged on the outer surface of the right arc module. The bottom ends of the left arc module and the right arc module can be engaged by a locking assembly, so that the top arc module, the left arc module and the right arc module are enclosed to form a circular track, and the second transmission section, the first transmission section and the third transmission section are sequentially connected to each other to form a circular traction member; a plurality of tightening assemblies for tightening the outer surface of the pipeline are arranged on the inner wall surfaces of the top arc module, the left arc module and the right arc module.

2. The outer rail structure according to claim 1, characterized in that: The second transmission section, the first transmission section and the third transmission section are chains, the two ends of the first transmission section are respectively connected to the top ends of the second transmission section and the third transmission section, and the bottom ends of the second transmission section and the third transmission section are detachably connected.

3. The outer rail structure according to claim 2, characterized in that: The circular ring traction member is located in the middle of the outer surface of the circular ring track.

4. The outer rail structure according to claim 3, characterized in that: The circular track is provided with a limiting convex strip for limiting the forward and backward movement of the circular traction member.

5. The outer rail structure according to claim 1, characterized in that: The top arc module is connected to the left arc module and the right arc module respectively through hinges.

6. The outer rail structure according to claim 1, characterized in that: The locking assembly comprises a wedge block arranged at the bottom of the left arc module and a buckle arranged at the bottom of the right arc module. The buckle buckles the wedge block to tightly connect the left arc module and the right arc module.

7. The outer rail structure according to claim 1, characterized in that: The top arc module, the left arc module and the right arc module are flexible thin plates.

8. The outer rail structure according to claim 7, characterized in that: The clamping assembly is a chuck and a push rod threadedly connected to the chuck, the push rod includes a pressure pad and a hexagonal bolt with a head fixed on the pressure pad; a plurality of groups of inner ring sandwiches are welded on the inner wall of the circular track, each group of inner ring sandwiches includes two inner ring rings arranged at intervals, and an inner cavity is formed between the two inner ring rings for the top of the chuck to be embedded, and the end of the hexagonal bolt away from the pressure pad extends into the inner cavity.

9. The outer rail structure according to claim 1, characterized in that: The top arc module is provided with a first lifting ring, the left arc module is provided with a second lifting ring, and the right arc module is provided with a third lifting ring.

10. The outer rail structure according to claim 9, characterized in that: There are two first hanging rings, which are arranged symmetrically on both sides.

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