Welding device for water conservancy construction pipeline

Abstract

The invention belongs to the technical field of intelligent welding systems, particularly relates to a welding device for a water conservancy construction pipeline, and aims at solving the problems that in the using process of an existing welding device, smoke generated by welding is inconvenient to treat in time, the working environment is severe, removed welding slag is inconvenient to discharge, and the welding efficiency is high. In order to solve the problem that accumulated welding slag may interfere with stable operation and subsequent welding quality of the device, the invention provides the following scheme that the device comprises a shell, an annular seat and an air bellow, and the air bellow is fixedly mounted at the top of the shell. All working procedures can be driven to work collaboratively and continuously only through a single power source, the welding automation degree and efficiency are remarkably improved, meanwhile, the field problems of welding smoke pollution and unsmooth welding slag removal and discharge are thoroughly solved, and high-quality, cleaning and full-process automation of water conservancy construction pipeline welding are achieved.

Description

Technical Field

[0001] This invention relates to the field of intelligent welding system technology, and in particular to a welding device for hydraulic construction pipelines. Background Technology

[0002] Water conservancy pipelines, especially large-diameter trunk pipelines, typically require on-site installation and welding in complex environments such as fields, ditches, and tunnels. These environments are often characterized by limited space, poor ventilation, and high demands on construction efficiency. Traditional welding methods or existing welding equipment with low levels of automation reveal systemic deficiencies when dealing with such projects. First, it is seriously inadequate in terms of environmental friendliness. The large amount of metal fumes, harmful gases and oxide particles generated during the welding process will accumulate rapidly in the confined space if they are not effectively collected and treated on site. This not only seriously deteriorates the working environment and endangers the respiratory health of construction workers, but also may cause occupational diseases if exposed for a long time. At the same time, the diffuse fumes will also interfere with the operator's vision, affecting the observation and judgment of the weld pool, thus creating potential quality hazards. Secondly, there are gaps in the complete chain of welding slag treatment. Although some existing equipment is equipped with synchronous slag removal tools, such as rotary brushes, they are mostly focused on the "removal" action itself and lack a closed-loop design for the "collection, transportation and discharge" of the removed welding slag. The removed welding slag falls directly and accumulates at the bottom of the equipment or around the workpiece. When the equipment rotates around the pipeline, the accumulated welding slag may be drawn into the moving parts, causing transmission jamming, increased wear and even equipment failure. In addition, cleaning these accumulated welding slags often requires interrupting the operation for manual processing, which disrupts the continuity of automatic welding and reduces overall efficiency. Furthermore, the integration and reliability of existing equipment need to be improved. Many functional modules of the equipment are relatively independent, relying on multiple motors and complex electrical control systems for coordination. Under harsh working conditions such as dust, humidity, and vibration in the field, the stability and lifespan of the electrical system are put to the test. At the same time, there is a lack of simple, reliable, and non-power-intensive mechanical anti-clogging design to address the common problem of easy blockage of welding slag discharge channels.

[0003] Patent document CN121132081A discloses an automatic welding device and its usage method for water conservancy construction pipelines, relating to the technical field of water conservancy construction. The device includes: a movable carrier, a bearing side seat, a welding support frame, a driving support frame, a welding support, and a protective support frame. An adjustable carrier frame is fixedly installed on the top of the movable carrier. The bearing side seat is fixedly installed on the side of the bearing support frame. The welding support frame is fixedly installed on the side of the bearing side seat. The driving support frame is rotatably installed inside the welding groove. The welding support is fixedly installed on the side of the assembly side frame. When the welding device moves back and forth along a circular path on the side of the pipeline supported by the driving support frame, the welding device automatically welds the pipeline joint. A cleaning brush provides efficient friction to the area to be welded on the pipeline, and automatically removes the welding slag from the weld area. This solves the problems of long welding intervals, poor continuity, and the need for manual cleaning of residual welding slag after welding in traditional welding devices.

[0004] However, the aforementioned patent documents are not convenient for timely treatment of welding fumes during use, resulting in a harsh working environment. Furthermore, it is not convenient to remove the cleaned welding slag, and the accumulated welding slag may interfere with the stable operation of the device and the subsequent welding quality. Therefore, we propose a welding device for hydraulic construction pipelines to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing welding devices, such as the inconvenience of timely treatment of welding fumes during use, resulting in a harsh working environment, and the difficulty in removing weld slag, which may interfere with the stable operation of the device and the quality of subsequent welding. Therefore, this invention proposes a welding device for hydraulic construction pipelines.

[0006] The welding device for hydraulic construction pipelines provided in this application adopts the following technical solution: A welding device for hydraulic construction pipelines includes a shell, an annular seat, and a bellows. The bellows is fixedly installed on the top of the shell. A rotating groove is formed inside the shell, and the annular seat is rotatably installed within the rotating groove. A pipe opening is formed on the annular seat. The device also includes: A clamping mechanism is mounted on the housing and is used to clamp the pipe. The fume collection mechanism is installed inside the air box and is used to treat the fumes generated during welding. The slag discharge pipe is fixedly installed at the bottom of the shell and is connected to the rotating trough. A vibration mechanism is installed on the slag discharge pipe to prevent the slag discharge pipe from becoming blocked. The first connecting plate and the second connecting plate have two symmetrical first sliding grooves on the outer side of the annular seat. The first connecting plate and the second connecting plate are slidably installed in the two first sliding grooves respectively. A welding head is fixedly installed on the first connecting plate. A slag removal mechanism is provided on the second connecting plate to remove welding slag. A first annular groove, a second annular groove and a third annular groove are provided in the rotating groove. A rotating mechanism is provided in the first annular groove to drive the annular seat to rotate. A hollow groove is provided in the housing.

[0007] Furthermore, a first annular plate and a second annular plate are rotatably installed in the first annular groove and the second annular groove, respectively. The first annular plate and the second annular plate are both fixedly installed on the outer side of the annular seat. A first gear ring and a second gear ring are fixedly installed on the outer side of the first annular plate and the second annular plate, respectively. When the annular seat rotates, the first annular plate and the second annular plate drive the first gear ring and the second gear ring to rotate, respectively.

[0008] Furthermore, the flue gas collection mechanism includes an activated carbon filter layer, which is fixedly installed inside the air box. A first drive shaft is rotatably installed on the top of the air box, and an impeller is fixedly installed on the outside of the first drive shaft. An exhaust pipe and an exhaust hood are fixedly connected to the top and bottom of the air box, respectively. When the first drive shaft rotates, it drives the impeller to rotate, and the rotation of the impeller generates negative pressure.

[0009] Furthermore, a through groove is provided on the top of the housing, which communicates with the second annular groove. A vertical plate is fixedly installed on the top of the housing, and a third transmission shaft is rotatably installed on the vertical plate. A second gear is fixedly installed at one end of the third transmission shaft. The second gear meshes with the second gear ring. When the second gear ring rotates, the second gear ring drives the second gear to rotate, and the second gear drives the third transmission shaft to rotate.

[0010] Furthermore, the vibration mechanism includes a movable plate, a second sliding groove is provided at the bottom of the housing, the movable plate is slidably installed in the second sliding groove, a striking rod is fixedly installed on one side of the movable plate, the striking rod cooperates with the slag discharge pipe, a sliding hole is provided on the inner wall of one side of the second sliding groove, the sliding hole communicates with the empty groove, a guide rod is slidably installed in the sliding hole, one end of the guide rod is fixedly connected to one side of the movable plate, an eccentric wheel is fixedly installed on the outer side of the rotating shaft, the guide rod cooperates with the eccentric wheel, a spring is sleeved on the outer side of the guide rod, the two ends of the spring are fixedly connected to the inner wall of the second sliding groove and the outer side of the movable plate respectively, when the rotating shaft rotates, the eccentric wheel drives the guide rod to move horizontally, the guide rod drives the movable plate to move horizontally to the left, the movable plate stretches the spring, when the eccentric wheel rotates to a certain position, the spring drives the movable plate to reset through deformation force, and then the movable plate drives the striking rod to move horizontally reciprocating.

[0011] Furthermore, a third gear ring is fixedly installed on one inner wall of the third annular groove, a second through hole is opened on the second connecting plate, a fifth drive shaft is rotatably installed in the second through hole, a third sprocket and a fourth sprocket are fixedly installed on the outer side of the fifth drive shaft and the second drive shaft respectively, and the same second chain meshes on the third sprocket and the fourth sprocket, a rectangular groove is opened at one end of the fifth drive shaft, a third through hole is opened on the inner wall of the first sliding groove, a rectangular rod is rotatably installed in the third through hole, a third gear is fixedly installed at one end of the rectangular rod, the third gear meshes with the third gear ring, the outer side of the rectangular rod is slidably connected to the inner wall of the rectangular groove, when the rectangular rod rotates, the rectangular rod drives the fifth drive shaft to rotate through the rectangular groove, the fifth drive shaft drives the third sprocket to rotate, and the third sprocket drives the fourth sprocket to rotate through the second chain.

[0012] Furthermore, a fourth drive shaft is rotatably mounted on one side of the bellows. A first bevel gear and a second bevel gear are fixedly mounted on the outer side of the first drive shaft at one end of the fourth drive shaft, respectively, and the first bevel gear and the second bevel gear mesh with each other. A second sprocket and a first sprocket are fixedly mounted on the other end of the fourth drive shaft and the other end of the third drive shaft, respectively. The same first chain meshes on the second sprocket and the first sprocket. When the third drive shaft rotates, the first sprocket drives the second sprocket to rotate through the first chain, and the second sprocket drives the fourth drive shaft to rotate.

[0013] Furthermore, the slag removal mechanism includes a second drive shaft, which is rotatably mounted on a second connecting plate. The second connecting plate has an installation groove. A wire brush is fixedly connected to one end of the second drive shaft. A second electric push rod is fixedly installed on the inner wall of each of the two first sliding grooves. The output shafts of the two second electric push rods are fixedly connected to the outer sides of the first and second connecting plates, respectively. When the two second electric push rods are activated, they respectively drive the first and second connecting plates to move.

[0014] Furthermore, the rotating mechanism includes a drive motor, which is fixedly installed at the bottom of the housing. The bottom of the housing has a first through hole, which communicates with a hollow groove and a first annular groove. A rotating shaft is rotatably installed in the first through hole. One end of the rotating shaft is fixedly connected to the output shaft of the drive motor, and the other end of the rotating shaft is fixedly connected to a first gear. The first gear meshes with a first gear ring. When the drive motor is turned on, the rotating shaft drives the first gear to rotate, and the first gear drives the first gear ring to rotate.

[0015] Furthermore, the clamping mechanism includes four first electric push rods, all of which are fixedly installed on the outside of the housing. The output shafts of the four first electric push rods are all fixedly installed with arc-shaped clamping plates. When the first electric push rods are activated, they move the arc-shaped clamping plates to a different position, and the four first clamping plates are used to clamp the pipe.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This solution uses a flue gas collection mechanism consisting of an impeller and an activated carbon filter layer to generate negative pressure during welding. The welding fumes are drawn in through the exhaust hood, purified, and then discharged through the exhaust pipe, which greatly improves the air quality at the construction site and meets the requirements of green construction. 2. This solution uses a wire brush disc driven by the second drive shaft to move synchronously around the pipeline with the welding head, achieving instant hot removal of welding slag, improving the slag removal effect and efficiency. The removed welding slag falls into the slag discharge pipe for centralized discharge. The vibration mechanism can continuously tap the slag discharge pipe, effectively preventing welding slag accumulation and blockage, and ensuring that the slag discharge channel remains unobstructed for a long time. 3. This solution is firmly fixed to the pipeline through a clamping mechanism, ensuring good overall rigidity. All core moving parts are driven by bearings, gear rings, gears, and chains, ensuring reliable power transmission and strong anti-interference capabilities, making it particularly suitable for harsh field construction environments in water conservancy projects.

[0017] This invention integrates four functional modules: welding, synchronous thermal slag removal, real-time flue gas purification, and vibration anti-clogging slag removal. It requires only a single power source to drive all processes to work together and continuously. While significantly improving the automation and efficiency of welding, it completely solves the on-site problems of welding fume pollution and poor slag removal and discharge, and realizes high-quality, clean and fully automated welding of water conservancy construction pipelines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of a welding device for hydraulic construction pipelines proposed in this invention; Figure 2 This is a schematic diagram of the main body of the shell of a welding device for a hydraulic construction pipeline proposed in this invention; Figure 3 This is a cross-sectional structural schematic diagram of the shell of a welding device for hydraulic construction pipelines proposed in this invention; Figure 4 This is a schematic diagram of the annular seat of a welding device for a hydraulic construction pipeline proposed in this invention; Figure 5 This is a schematic diagram of the structure of the annular seat of the welding device for hydraulic construction pipelines proposed in this invention, which engages with the first and second gear rings. Figure 6 This is a schematic diagram of the structure of the bellows of a welding device for a hydraulic construction pipeline proposed in this invention; Figure 7 This is a schematic diagram of the structure of the first gear ring and the first gear in the welding device for hydraulic construction pipelines proposed in this invention; Figure 8This is a schematic diagram of the structure of the welding device for hydraulic construction pipelines proposed in this invention, showing the engagement of the third gear ring and the third gear. Figure 9 This is a schematic diagram of the clamping mechanism of a welding device for hydraulic construction pipelines proposed in this invention. Figure 10 This is a schematic diagram of the vibration mechanism of a welding device for hydraulic construction pipelines proposed in this invention. Figure 11 This is a schematic diagram of the slag removal mechanism of a welding device for a hydraulic construction pipeline proposed in this invention. Figure 12 This invention proposes a welding device for hydraulic construction pipelines. Figure 1 Enlarged structural diagram of part A in the middle; Figure 13 This invention proposes a welding device for hydraulic construction pipelines. Figure 3 Enlarged structural diagram of section B; Figure 14 This invention proposes a welding device for hydraulic construction pipelines. Figure 6 Enlarged structural diagram of section C; Figure 15 This invention proposes a welding device for hydraulic construction pipelines. Figure 6 Enlarged structural diagram of part B.

[0019] Reference numerals: 1. Shell; 2. Rotating groove; 3. Annular seat; 4. Bellows; 5. Vertical plate; 6. First electric push rod; 7. Arc-shaped clamp; 8. Pipe opening; 9. Slag discharge pipe; 10. Exhaust pipe; 11. Exhaust hood; 12. Activated carbon filter layer; 13. First chute; 14. First annular plate; 15. First gear ring; 16. Second annular plate; 17. Second gear ring; 18. First connecting plate; 19. Second connecting plate; 20. Second electric push rod; 21. Welding head; 22. Wire brush disc; 23. Drive motor; 24. First gear; 25. Guide rod; 26. Movable plate; 27. Striking rod; 28. Spring; 29. 30. First annular groove; 31. Second annular groove; 32. Third annular groove; 33. Empty groove; 34. Second sliding groove; 35. Through groove; 36. Second gear; 37. Third drive shaft; 38. First sprocket; 39. First chain; 40. Second sprocket; 41. Fourth drive shaft; 42. First bevel gear; 43. Second bevel gear; 44. First drive shaft; 45. Impeller; 46. Eccentric wheel; 47. Mounting groove; 48. Rectangular rod; 49. Third gear; 50. Fifth drive shaft; 51. Rectangular groove; 52. Third sprocket; 53. Second chain; 54. Fourth sprocket; 55. Second drive shaft; 56. Third gear ring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1 Reference Figures 1-15 A welding device for hydraulic construction pipelines includes a housing 1, an annular seat 3, and a bellows 4. The bellows 4 is fixedly installed on the top of the housing 1. A rotating groove 2 is provided inside the housing 1. The annular seat 3 is rotatably installed in the rotating groove 2. A pipe opening 8 is provided on the annular seat 3. The device also includes: A clamping mechanism is installed on the housing 1 and is used to clamp the pipe. A fume collection mechanism is installed inside the air box 4 and is used to treat the fumes generated during welding. Slag discharge pipe 9 is fixedly installed at the bottom of the housing 1. Slag discharge pipe 9 is connected to the rotating groove 2. A vibration mechanism is provided on slag discharge pipe 9 to prevent slag discharge pipe 9 from becoming blocked. The first connecting plate 18 and the second connecting plate 19, and the outer side of the annular seat 3 are provided with two symmetrical first sliding grooves 13. The first connecting plate 18 and the second connecting plate 19 are respectively slidably installed in the two first sliding grooves. The welding head 21 is fixedly installed on the first connecting plate 18. The second connecting plate 19 is provided with a slag removal mechanism for removing welding slag. The rotating groove 2 is provided with a first annular groove 29, a second annular groove 30 and a third annular groove 31. The first annular groove 29 is provided with a rotating mechanism for driving the annular seat 3 to rotate. The housing 1 is provided with a hollow groove 32.

[0022] In this embodiment, the vibration mechanism includes a movable plate 26. A second sliding groove 33 is provided at the bottom of the housing 1. The movable plate 26 is slidably installed in the second sliding groove 33. A striking rod 27 is fixedly installed on one side of the movable plate 26. The striking rod 27 cooperates with the slag discharge pipe 9. A sliding hole is provided on the inner wall of one side of the second sliding groove 33. The sliding hole communicates with the empty groove 32. A guide rod 25 is slidably installed in the sliding hole. One end of the guide rod 25 is fixedly connected to one side of the movable plate 26. An eccentric wheel 45 is fixedly installed on the outer side of the rotating shaft. 5. In conjunction with the eccentric wheel 45, a spring 28 is sleeved on the outer side of the guide rod 25. The two ends of the spring 28 are fixedly connected to the inner wall of the second slide groove 33 and the outer side of the movable plate 26, respectively. When the shaft rotates, the eccentric wheel 45 drives the guide rod 25 to move horizontally, and the guide rod 25 drives the movable plate 26 to move horizontally to the left. The movable plate 26 stretches the spring 28. When the eccentric wheel 45 rotates to a certain position, the spring 28 drives the movable plate 26 to reset through deformation force, and then the movable plate 26 drives the striking rod 27 to move horizontally back and forth.

[0023] In this embodiment, a third gear ring 55 is fixedly installed on one side of the inner wall of the third annular groove 31. A second through hole is provided on the second connecting plate 19. A fifth drive shaft 49 is rotatably installed in the second through hole. A third sprocket 51 and a fourth sprocket 53 are fixedly installed on the outer sides of the fifth drive shaft 49 and the second drive shaft 54, respectively. The same second chain 52 meshes on the third sprocket 51 and the fourth sprocket 53. A rectangular groove 50 is provided at one end of the fifth drive shaft 49. A third through hole is provided on the inner wall of the first sliding groove 13. A rectangular rod 47 is rotatably installed in the third through hole. A third gear 48 is fixedly installed at one end of the rectangular rod 47. The third gear 48 meshes with the third gear ring 55. The outer side of the rectangular rod 47 is slidably connected to the inner wall of the rectangular groove 50. When the rectangular rod 47 rotates, the rectangular rod 47 drives the fifth drive shaft 49 to rotate through the rectangular groove 50. The fifth drive shaft 49 drives the third sprocket 51 to rotate. The third sprocket 51 drives the fourth sprocket 53 to rotate through the second chain 52.

[0024] In this embodiment, a through groove 34 is provided on the top of the housing 1, which communicates with the second annular groove 30. A vertical plate 5 is fixedly installed on the top of the housing 1, and a third drive shaft 36 is rotatably installed on the vertical plate 5. A second gear 35 is fixedly installed on one end of the third drive shaft 36. The second gear 35 meshes with a second gear ring 17. When the second gear ring 17 rotates, it drives the second gear 35 to rotate, and the second gear 35 drives the third drive shaft 36 to rotate. A fourth drive shaft 40 is rotatably installed on one side of the bellows 4. A first bevel gear 41 and a second bevel gear 42 are fixedly installed on the outer side of the first drive shaft 43, respectively. The first bevel gear 41 and the second bevel gear 42 mesh with each other. A second sprocket 39 and a first sprocket 37 are fixedly installed on the other end of the third drive shaft 36, respectively. The same first chain 38 meshes on the second sprocket 39 and the first sprocket 37. When the third drive shaft 36 rotates, the first sprocket 37 drives the second sprocket 39 to rotate through the first chain 38, and the second sprocket 39 drives the fourth drive shaft 40 to rotate.

[0025] In this embodiment, the flue gas collection mechanism includes an activated carbon filter layer 12, which is fixedly installed inside the air box 4. A first drive shaft 43 is rotatably installed on the top of the air box 4, and an impeller 44 is fixedly installed on the outer side of the first drive shaft 43. An exhaust pipe 10 and an exhaust hood 11 are fixedly connected to the top and bottom of the air box 4, respectively. When the first drive shaft 43 rotates, it drives the impeller 44 to rotate, and the rotation of the impeller 44 generates negative pressure. The slag removal mechanism includes a second drive shaft 54, which is rotatably installed on a second connecting plate 19. An installation groove 46 is provided on the second connecting plate 19. A wire brush disc 22 is fixedly connected to one end of the second drive shaft 54. A second electric push rod 20 is fixedly installed on the inner wall of each of the two first sliding grooves 13. The output shafts of the two second electric push rods 20 are fixedly connected to the outer side of the first connecting plate 18 and the second connecting plate 19, respectively. When the two second electric push rods 20 are opened, they respectively drive the first connecting plate 18 and the second connecting plate 19 to move.

[0026] In this embodiment, a first annular plate 14 and a second annular plate 16 are rotatably installed in the first annular groove 29 and the second annular groove 30, respectively. Both the first annular plate 14 and the second annular plate 16 are fixedly installed on the outer side of the annular seat 3. A first gear ring 15 and a second gear ring 17 are fixedly installed on the outer side of the first annular plate 14 and the second annular plate 16, respectively. When the annular seat 3 rotates, the first annular plate 14 and the second annular plate 16 drive the first gear ring 15 and the second gear ring 17 to rotate, respectively. The rotating mechanism includes a drive motor 23, which is fixedly installed at the bottom of the housing 1. A first through hole is provided at the bottom of the housing 1, and the first through hole is connected to the empty groove 32 and the first annular groove 29. A rotating shaft is rotatably installed inside the first through hole. One end of the rotating shaft is fixedly connected to the output shaft of the drive motor 23, and the other end of the rotating shaft is fixedly connected to the first gear 24. The first gear 24 meshes with the first gear ring 15. When the drive motor 23 is turned on, the rotating shaft drives the first gear 24 to rotate, and the first gear 24 drives the first gear ring 15 to rotate. The clamping mechanism includes four first electric push rods 6. All four first electric push rods 6 are fixedly installed on the outside of the housing 1. The output shafts of the four first electric push rods 6 are all fixedly installed with arc-shaped clamping plates 7. When the first electric push rods 6 are turned on, the first electric push rods 6 move the arc-shaped clamping plates 7 to a certain position. The four first clamping plates 7 are used to clamp the pipe.

[0027] The implementation principle in this embodiment is as follows: When in use, the device is placed on the circumferential seam of the pipe to be welded, so that the pipe passes through the pipe opening 8. The four first electric push rods 6 are activated to push the four arc-shaped clamps 7 to move inward, so that the housing 1 is firmly clamped and fixed on the pipe. Welding and slag removal operation: Start the drive motor 23, and its output shaft drives the rotating shaft and the first gear 24 to rotate. The first gear 24 meshes with the first gear ring 15 fixed on the first annular plate 14, thereby driving the entire annular seat 3 to rotate at a constant speed in the rotating groove 2. The welding head 21 fixed on the first connecting plate 18 then performs circumferential welding around the pipe. At the same time, the rotation of the annular seat 3 drives the second annular plate 16 and the second gear ring 17 on it to rotate synchronously. The second gear ring 17 meshes with the second gear 35, driving the third transmission shaft 36 to rotate. The power is transmitted to the fourth transmission shaft 40 through the first sprocket 37, the first chain 38 and the second sprocket 39. The fourth transmission shaft 40 drives the first transmission shaft 43 and the impeller 44 to rotate through the reversal of the first bevel gear 41 and the second bevel gear 42, so that the flue gas collection mechanism starts to work and sucks up the welding fumes. On the other hand, when the ring seat 3 drives the second connecting plate 19 to rotate, the third gear 48 at the end of the rectangular rod 47 fixed on the second connecting plate 19 meshes with the third gear ring 55 fixed on the housing. Since the third gear ring 55 is fixed, the third gear 48 rotates while revolving around the sun, driving the rectangular rod 47 to rotate. The rectangular rod 47 drives the fifth transmission shaft 49 to rotate through the rectangular groove 50, and then transmits the power to the second transmission shaft 54 ​​through the third sprocket 51, the second chain 52 and the fourth sprocket 53, finally driving the wire brush 22 to rotate at high speed, so that the wire brush 22 continues to rotate and brush away the hot welding slag at the weld while following the movement behind the welding head 21. Slag removal and anti-clogging: The removed welding slag falls into the bottom of the rotating tank 2 and gathers at the discharge port above the slag discharge pipe 9 along the inclined bottom. At the same time, the shaft of the drive motor 23 drives the eccentric wheel 45 to rotate continuously. The eccentric wheel 45 periodically pushes the guide rod 25, causing the movable plate 26 to slide to the left against the elastic force of the spring 28. Then, under the reset action of the spring 28, it returns to the right, thereby driving the striking rod 27 to strike the slag discharge pipe 9 at a high frequency and reciprocatingly. This vibration effectively prevents the welding slag from sticking or accumulating on the inner wall of the slag discharge pipe 9, ensuring that the welding slag is discharged smoothly and continuously from the device. Position adjustment: By controlling the extension and retraction of the two second electric push rods 20, the radial position of the welding head 21 on the first connecting plate 18 and the wire brush plate 22 on the second connecting plate 19 relative to the pipe circumferential joint can be adjusted independently to adapt to different pipe diameters and welding bevel requirements.

[0028] Example 2 The difference between this embodiment and Embodiment 1 is that: a crossbar is fixedly installed on the outside of the housing 1, a vertical bar is slidably installed on the outside of the crossbar, a base is fixedly installed at the bottom of the vertical bar, four universal wheels are rotatably installed at the bottom of the base, a servo motor is fixedly installed inside the base, and a threaded rod is fixedly connected to the output shaft of the servo motor. The threaded rod is threadedly connected to the crossbar. When the servo motor is turned on, the threaded rod drives the crossbar to move vertically, thereby facilitating the adjustment of the height of the housing 1. At the same time, the four universal wheels facilitate the movement of the device.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for hydraulic construction pipelines, comprising a shell (1), an annular seat (3), and a bellows (4), characterized in that: The bellows (4) is fixedly installed on the top of the housing (1), and a rotating groove (2) is provided inside the housing (1). The annular seat (3) is rotatably installed in the rotating groove (2), and a pipe opening (8) is provided on the annular seat (3); it also includes: A clamping mechanism is installed on the housing (1) and is used to clamp the pipe. The fume collection mechanism is installed inside the wind box (4) and is used to treat the fumes generated during welding. Slag discharge pipe (9) is fixedly installed at the bottom of the shell (1). The slag discharge pipe (9) is connected to the rotating groove (2). A vibration mechanism is provided on the slag discharge pipe (9). The vibration mechanism is used to prevent the slag discharge pipe (9) from becoming blocked. The first connecting plate (18) and the second connecting plate (19) are provided with two symmetrical first sliding grooves (13) on the outer side of the annular seat (3). The first connecting plate (18) and the second connecting plate (19) are respectively slidably installed in the two first sliding grooves. The welding head (21) is fixedly installed on the first connecting plate (18). The slag removal mechanism is provided on the second connecting plate (19). The slag removal mechanism is used to remove welding slag. The rotating groove (2) is provided with a first annular groove (29), a second annular groove (30) and a third annular groove (31). The first annular groove (29) is provided with a rotating mechanism. The rotating mechanism is used to drive the annular seat (3) to rotate. The shell (1) is provided with a hollow groove (32).

2. The welding device for a hydraulic construction pipeline according to claim 1, characterized in that: The clamping mechanism includes four first electric push rods (6), all of which are fixedly installed on the outside of the housing (1), and the output shafts of the four first electric push rods (6) are all fixedly installed with arc-shaped clamps (7).

3. The welding device for a hydraulic construction pipeline according to claim 2, characterized in that: The first annular plate (14) and the second annular plate (16) are rotatably installed in the first annular groove (29) and the second annular groove (30), respectively. The first annular plate (14) and the second annular plate (16) are both fixedly installed on the outside of the annular seat (3). The first gear ring (15) and the second gear ring (17) are fixedly installed on the outside of the first annular plate (14) and the second annular plate (16), respectively.

4. The welding device for a hydraulic construction pipeline according to claim 3, characterized in that: The rotating mechanism includes a drive motor (23), which is fixedly installed at the bottom of the housing (1). The bottom of the housing (1) has a first through hole, which communicates with the empty groove (32) and the first annular groove (29). A rotating shaft is rotatably installed in the first through hole. One end of the rotating shaft is fixedly connected to the output shaft of the drive motor (23), and the other end of the rotating shaft is fixedly connected to a first gear (24). The first gear (24) meshes with the first gear ring (15).

5. The welding device for a hydraulic construction pipeline according to claim 4, characterized in that: The flue gas collection mechanism includes an activated carbon filter layer (12), which is fixedly installed inside the wind box (4). A first drive shaft (43) is rotatably installed on the top of the wind box (4), and an impeller (44) is fixedly installed on the outside of the first drive shaft (43). An exhaust pipe (10) and an exhaust hood (11) are fixedly connected to the top and bottom of the wind box (4), respectively.

6. The welding device for a hydraulic construction pipeline according to claim 5, characterized in that: The slag removal mechanism includes a second drive shaft (54), which is rotatably mounted on a second connecting plate (19). The second connecting plate (19) has an installation groove (46). One end of the second drive shaft (54) is fixedly connected to a wire brush disc (22). The inner walls of the two first sliding grooves (13) are fixedly mounted with second electric push rods (20). The output shafts of the two second electric push rods (20) are fixedly connected to the outer sides of the first connecting plate (18) and the second connecting plate (19), respectively.

7. The welding device for a hydraulic construction pipeline according to claim 6, characterized in that: The top of the housing (1) is provided with a through groove (34), which communicates with the second annular groove (30). A vertical plate (5) is fixedly installed on the top of the housing (1), and a third transmission shaft (36) is rotatably installed on the vertical plate (5). A second gear (35) is fixedly installed at one end of the third transmission shaft (36), and the second gear (35) meshes with the second gear ring (17).

8. The welding device for a hydraulic construction pipeline according to claim 7, characterized in that: A fourth drive shaft (40) is rotatably mounted on one side of the bellows (4). A first bevel gear (41) and a second bevel gear (42) are fixedly mounted on one end of the fourth drive shaft (40) and the outer side of the first drive shaft (43), respectively. The first bevel gear (41) and the second bevel gear (42) mesh with each other. A second sprocket (39) and a first sprocket (37) are fixedly mounted on the other end of the fourth drive shaft (40) and the other end of the third drive shaft (36), respectively. The same first chain (38) meshes on the second sprocket (39) and the first sprocket (37).

9. The welding device for a hydraulic construction pipeline according to claim 8, characterized in that: The vibration mechanism includes a movable plate (26), and a second sliding groove (33) is provided at the bottom of the housing (1). The movable plate (26) is slidably installed in the second sliding groove (33). A striking rod (27) is fixedly installed on one side of the movable plate (26). The striking rod (27) cooperates with the slag discharge pipe (9). A sliding hole is provided on the inner wall of one side of the second sliding groove (33). The sliding hole communicates with the empty groove (32). A guide rod (25) is slidably installed in the sliding hole. One end of the guide rod (25) is fixedly connected to one side of the movable plate (26). An eccentric wheel (45) is fixedly installed on the outer side of the rotating shaft. The guide rod (25) cooperates with the eccentric wheel (45). A spring (28) is sleeved on the outer side of the guide rod (25). The two ends of the spring (28) are fixedly connected to the inner wall of the second sliding groove (33) and the outer side of the movable plate (26), respectively.

10. A welding device for a hydraulic construction pipeline according to claim 9, characterized in that: A third gear ring (55) is fixedly installed on one side of the inner wall of the third annular groove (31). A second through hole is opened on the second connecting plate (19). A fifth drive shaft (49) is rotatably installed in the second through hole. A third sprocket (51) and a fourth sprocket (53) are fixedly installed on the outer side of the fifth drive shaft (49) and the second drive shaft (54), respectively. The same second chain (52) meshes on the third sprocket (51) and the fourth sprocket (53). A rectangular groove (50) is opened at one end of the fifth drive shaft (49). A third through hole is opened on the inner wall of the first sliding groove (13). A rectangular rod (47) is rotatably installed in the third through hole. A third gear (48) is fixedly installed at one end of the rectangular rod (47). The third gear (48) meshes with the third gear ring (55). The outer side of the rectangular rod (47) is slidably connected to the inner wall of the rectangular groove (50).

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