Protective pipeline welding device

Abstract

The utility model relates to the technical field of pipeline welding, in particular to a protective pipeline welding device which comprises a movable protective cover and movable brackets located on the two sides of the movable protective cover. The movable protective cover comprises a movable frame and a ceiling; a movable welding assembly is mounted in the ceiling; the movable bracket comprises a supporting frame, second walking wheels are arranged at the bottom, a driving assembly is arranged on the upper end face of the supporting frame, the output end of the driving assembly is connected with a rotating shaft, the rotating shaft is fixedly connected with adjustable supporting arms which are symmetrically arranged, and the adjustable supporting arms are used for stretching into the pipeline and abutting against the inner side wall of the pipeline. And the adjusting supporting arms extend into the pipeline, the arc-shaped supporting plates abut against the inner side wall of the pipeline, pipeline slipping is avoided, and pipeline rotation continuity and stability are ensured. The length of the adjustable supporting arm can be flexibly adjusted by rotating the adjusting sleeve to adapt to pipelines with different diameters. The rotating roller of the auxiliary rotating assembly abuts against the outer side wall of the pipeline to assist the pipeline in rotating, the pipeline rotating stability is improved, and uniform welding is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, and more specifically, to a protective pipeline welding device. Background Technology

[0002] In thermal power plants, pipe welding is a common task. Patent CN222243029U discloses a protective pipe welding device. A roller-driven support assembly supports and rotates the pipe, a mobile frame assembly provides overall mobility, a mobile welding assembly performs the welding operation, and a spray dust removal assembly is used for dust removal and cooling during the welding process. This protective pipe welding device utilizes rollers to rotate the pipe for welding. However, because the rollers are located at the bottom of the outer wall of the pipe, when the pipe diameter is large, the pipe is prone to slippage when rotating the rollers, causing intermittent rotation and thus affecting the welding process. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a protective pipe welding device.

[0004] A protective pipe welding device includes a movable protective cover and movable brackets located on both sides of the movable protective cover; the movable protective cover includes a movable frame and a canopy, and the bottom of the movable frame is provided with first traveling wheels; a movable welding assembly is installed inside the canopy.

[0005] The movable bracket includes a support frame, a second traveling wheel is arranged at the bottom of the support frame, a drive component is arranged on the upper surface of the support frame, the output end of the drive component is connected to a rotating shaft, and an adjustable support arm is fixedly connected to the rotating shaft. The adjustable support arm is used to extend into the pipe and abut against the inner wall of the pipe.

[0006] Furthermore, the support frame includes two parallel support beams, and a first platform, a second platform, and a third platform are fixedly connected between the two support beams. The first platform and the second platform are respectively provided with auxiliary rotation components; the third platform is provided with a drive component.

[0007] Furthermore, the first platform, the second platform, and the third platform are all flat plate structures, which are fixed to the two supporting beams by welding.

[0008] Furthermore, the driving component is a motor; a support platform is provided on the third platform for placing the motor.

[0009] Furthermore, the adjustable support arm includes a first threaded rod, an adjusting sleeve, and a second threaded rod. The first threaded rod is fixed to the rotating shaft. The two ends of the adjusting sleeve are respectively threaded to the first threaded rod and the second threaded rod. Rotating the adjusting sleeve allows the first threaded rod and the second threaded rod to move towards or away from each other. An arc-shaped support plate is fixed to the end of the second threaded rod, and the arc-shaped support plate abuts against the inner wall of the pipe.

[0010] Furthermore, the auxiliary rotation components are arranged in pairs, and each auxiliary rotation component can be selectively installed at a preset position on the first platform or the second platform;

[0011] The first platform is provided with equal-spaced first through holes, and the second platform is provided with equal-spaced second through holes, which are respectively used to connect the auxiliary rotating component.

[0012] Furthermore, the auxiliary rotating assembly includes a support column, the upper end face of which is an arc surface, and two ends of the upper end face are respectively rotatably connected to rotating rollers, which abut against the outer wall of the pipe; the bottom of the support column is also provided with a connecting plate, and the connecting plate is provided with connecting holes for connecting to the first platform or the second platform.

[0013] Furthermore, the support beam is also fixedly connected to an L-shaped fixing plate, and the horizontal section of the fixing plate has a third through hole for fixing to the ground.

[0014] Furthermore, the movable frame includes crossbeams and columns, and also includes diagonal braces;

[0015] The canopy is also equipped with sliding tracks for sliding connection of movable welding components.

[0016] Furthermore, the canopy is also provided with ventilation holes and may also be provided with spray pipes.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This protective pipe welding device features an adjustable support arm that extends into the pipe and abuts against the inner wall of the pipe via an arc-shaped support plate. Compared to traditional outer roller support, this inner support method provides a more secure fixation of the pipe, preventing slippage and ensuring continuous and stable pipe rotation. The length of the adjustable support arm can be flexibly adjusted by rotating the adjusting sleeve to accommodate pipes of different diameters, improving the device's versatility. The auxiliary rotating component's roller abuts against the outer wall of the pipe, assisting in pipe rotation, reducing friction, and further improving the smoothness of pipe rotation, ensuring uniform welding.

[0019] Furthermore, by adjusting the position of the adjustable support arm and auxiliary rotating assembly, the device can adapt to pipes of different diameters and lengths, exhibiting strong versatility.

[0020] Furthermore, the L-shaped fixing plate on the outside of the support beam can be fixed to the ground through the third through hole, which further enhances the stability of the device and prevents the device from shifting due to vibration during the welding process. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the protective pipe welding device in the embodiment.

[0023] Figure 2 This is a partially exploded schematic diagram of the protective pipe welding device in the embodiment.

[0024] Figure 3 This is a schematic diagram of the movable bracket in the embodiment.

[0025] Figure 4 This is a schematic diagram of the drive assembly and adjustable support arm in the embodiment.

[0026] Figure 5 This is an exploded view of the first platform and the auxiliary rotation component in the embodiment.

[0027] Figure 6 This is an exploded view of the first platform and auxiliary rotation component in the embodiment from another perspective.

[0028] Figure 7 This is a schematic diagram of the movable protective cover in the embodiment.

[0029] In the diagram: 1. Moving frame; 11. First traveling wheel; 12. Crossbeam; 13. Column; 14. Diagonal brace;

[0030] 2. Canopy; 21. Slide;

[0031] 3. Mobile welding assembly;

[0032] 4. Pipelines;

[0033] 5. Support frame; 51. Second traveling wheel; 52. Support beam; 53. First platform; 531. First through hole; 54. Second platform; 541. Second through hole; 55. Third platform; 551. Support platform; 56. Fixing plate; 57. Third through hole;

[0034] 6. Driver components;

[0035] 7. Shaft;

[0036] 8. Adjustable support arm; 81. First threaded rod; 82. Second threaded rod; 83. Adjusting sleeve; 84. Arc-shaped support plate;

[0037] 9. Auxiliary rotating assembly; 91. Support column; 92. Rotating roller; 93. Connecting plate; 94. Connecting hole. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment provides a protective pipe welding device, including a movable protective cover and movable brackets located on both sides of the movable protective cover; the movable protective cover includes a movable frame 1 and a canopy 2, and the bottom of the movable frame 1 is provided with first traveling wheels 11; a movable welding assembly 3 is installed inside the canopy 2; the two pipes 4 to be welded are placed on the two movable brackets respectively, and their welding ends are extended into the movable protective cover so that the two welding ends are in a weldable position, and welding is performed using the movable welding assembly 3.

[0040] In this embodiment, as Figures 1-5 As shown, the movable bracket includes a support frame 5, with a second traveling wheel 51 arranged at the bottom of the support frame 5, and a drive assembly 6 arranged on the upper surface of the support frame 5. The output end of the drive assembly 6 is connected to a rotating shaft 7, and the rotating shaft 7 is fixedly connected to an adjustable support arm 8 arranged symmetrically. The adjustable support arm 8 is used to extend into the pipe 4 and abut against the inner wall of the pipe 4.

[0041] Specifically, the support frame 5 includes two parallel support beams 52. A first platform 53, a second platform 54, and a third platform 55 are fixedly connected between the two support beams 52. Auxiliary rotating components 9 are respectively arranged on the first platform 53 and the second platform 54; a drive component 6 is arranged on the third platform 55. The drive component 6 is a motor. A support platform 551 is arranged on the third platform 55 for placing the motor. The output end of the motor is connected to a rotating shaft 7. An adjustable support arm 8 is fixed to the rotating shaft 7. Specifically, the adjustable support arm 8 includes a first threaded rod 81, an adjusting sleeve 83, and a second threaded rod 82. The first threaded rod 81 is fixedly connected to the rotating shaft 7. The two ends of the adjusting sleeve 83 are threadedly connected to the first threaded rod 81 and the second threaded rod 82, respectively. Rotating the adjusting sleeve 83 allows the first threaded rod 81 and the second threaded rod 82 to move towards or away from each other. An arc-shaped support plate 84 is fixedly connected to the end of the second threaded rod 82. The arc-shaped support plate 84 abuts against the inner wall of the pipe 4. Two adjustable support arms 8 form a group, meaning the adjustable support arms 8 are arranged in pairs.

[0042] When rotating the pipe, first insert the adjustable support arm 8 into the pipe 4, rotate the adjusting sleeve 83 so that the arc-shaped support plate 84 at the end of the second threaded rod 82 abuts against the inner wall of the pipe 4, and then start the motor. At this time, each adjustable support arm 8 rotates, thereby driving the pipe 4 to rotate.

[0043] In this embodiment, the first platform 53, the second platform 54, and the third platform 55 are all flat plate structures, which are fixed to the two support beams 52 by welding. The first platform 53 is provided with equal-spaced first through holes 531, and the second platform 54 is provided with equal-spaced second through holes 541, which are used to connect the auxiliary rotating assembly 9.

[0044] The auxiliary rotation components 9 are arranged in pairs. Each set of auxiliary rotation components 9 can be selectively installed at a preset position on the first platform 53 or the second platform 54. Each set of auxiliary rotation components 9 can be selectively installed in the first through hole 531 of the first platform 53 or the second through hole 541 of the second platform 54.

[0045] Specifically, such as Figure 5 and Figure 6 As shown, the auxiliary rotation assembly 9 includes a support column 91 with an arc-shaped upper surface. Two rotating rollers 92 are rotatably connected to the two ends of the upper surface, and the rollers 92 abut against the outer wall of the pipe 4. A connecting plate 93 is also provided at the bottom of the support column 91, with connecting holes 94 for connecting to the first platform 53 or the second platform 54. While the driving assembly 6 rotates the pipe 4, the rotating rollers 92 in the auxiliary rotation assembly 9 assist in the rotation of the pipe 4, ensuring smooth rotation of the pipe during welding.

[0046] In this embodiment, an L-shaped fixing plate 56 is also fixedly connected to the outer side of the support beam 52. The horizontal section of the fixing plate 56 has a third through hole 57 for fixing to the ground, enhancing the stability of the device and preventing the device from shifting due to vibration during welding.

[0047] In the movable protective cover of this embodiment, such as Figure 1 , Figure 3 and Figure 7 As shown, the movable frame 1 includes a crossbeam 12 and a column 13, as well as diagonal bracing 14, thereby ensuring the overall stability of the movable frame.

[0048] A slide rail 21 is also provided inside the ceiling 2 for sliding connection of the movable welding assembly 3. The movable welding assembly 3 uses an automatic submerged arc welding machine, and its welding end is connected to an electric hoist, allowing it to move along the slide rail 21 to complete the welding. In this embodiment, the slide rail is composed of two plates with gaps. In practical applications, I-beams can also be used as the slide rail, and the electric hoist is slidably connected to the slide rail using an appropriate connection method. In practical applications, the slide rail can also be omitted, and the welding end of the automatic submerged arc welding machine can be fixed at the center of the ceiling, with this position being the optimal position for pipe welding. Since those skilled in the art can adapt the automatic submerged arc welding machine to the actual situation, further details are omitted here.

[0049] In this embodiment, the ceiling 2 can also be equipped with spray pipes and atomizing nozzles. The spray pipes are connected to a water pipe or water tank to spray coolant or water mist, cooling and removing dust from the welding area, thus protecting the welding quality and the health of the operators. The spray pipes are attached to the ceiling by clips or binding, and corresponding clips or connecting rings are provided on the ceiling 2 for connection.

[0050] The protective pipe welding device provided in this embodiment operates on the following principle: Two pipes 4 to be welded are placed on two movable brackets, with the welding ends of the pipes 4 extending into the movable protective cover. An adjustable support arm 8 is inserted into the pipe 4. By rotating the adjusting sleeve 83, the arc-shaped support plate 84 at the end of the second threaded rod 82 abuts against the inner wall of the pipe 4, thereby fixing the pipe 4. Activating the drive assembly 6 starts the motor, which drives the adjustable support arm 8 to rotate via the rotating shaft 7, thus rotating the pipe 4 and achieving rotary welding. During pipe rotation, an auxiliary rotation assembly 9 is installed on the first platform 53 or the second platform 54, with its rotating roller 92 abutting against the outer wall of the pipe 4 to assist in pipe rotation and reduce friction during rotation.

[0051] The mobile welding assembly 3 is installed on the slide rail 21 inside the canopy 2. Its welding end is connected to an electric hoist, and it can move along the slide rail 21 to complete the pipe welding.

[0052] The protective pipe welding device provided in this embodiment features an adjustable support arm 8 that extends into the pipe and abuts against the inner wall of the pipe via an arc-shaped support plate 84. Compared to traditional outer roller support, this inner support method provides a more secure fixation of the pipe, preventing slippage and ensuring the continuity and stability of pipe rotation. The length of the adjustable support arm 8 can be flexibly adjusted by rotating the adjusting sleeve 83 to accommodate pipes of different diameters, improving the device's versatility. The rotating roller 92 of the auxiliary rotating assembly 9 abuts against the outer wall of the pipe, assisting in pipe rotation, reducing friction, further improving the smoothness of pipe rotation, and ensuring uniform welding.

[0053] By adjusting the positions of the adjustable support arm 8 and the auxiliary rotating component 9, the device can adapt to pipes of different diameters and lengths, and has strong versatility.

[0054] The L-shaped fixing plate 56 on the outside of the support beam 52 can be fixed to the ground through the third through hole 57, which further enhances the stability of the device and prevents the device from shifting due to vibration during the welding process.

[0055] The protective pipe welding device provided in this embodiment solves the slippage problem common in traditional roller-supported pipe systems by employing an internal support design and auxiliary rotating components, thereby improving the stability of pipe rotation and the uniformity of welding. Simultaneously, the design of the movable welding components, spray cooling system, and protective cover further enhances welding efficiency, operational safety, and applicability. This device is suitable for the complex scenarios of pipe welding in thermal power plants, effectively improving welding quality and construction efficiency.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective pipe welding device, characterized in that, It includes a movable protective cover and movable brackets located on both sides of the movable protective cover; the movable protective cover includes a movable frame (1) and a canopy (2), the bottom of the movable frame (1) is provided with first traveling wheels (11); a movable welding assembly (3) is installed inside the canopy (2); The movable bracket includes a support frame (5), the bottom of which is provided with a second traveling wheel (51), and the upper surface of the support frame (5) is provided with a drive assembly (6). The output end of the drive assembly (6) is connected to a rotating shaft (7), and the rotating shaft (7) is fixedly connected with symmetrically arranged adjustable support arms (8). The adjustable support arms (8) are used to extend into the pipe (4) and abut against the inner side wall of the pipe (4).

2. The protective pipe welding device according to claim 1, characterized in that, The support frame (5) includes two parallel support beams (52), and a first platform (53), a second platform (54) and a third platform (55) are fixed between the two support beams (52). The first platform (53) and the second platform (54) are respectively provided with auxiliary rotation components (9); the third platform (55) is provided with a drive component (6).

3. The protective pipe welding device according to claim 2, characterized in that, The first platform (53), the second platform (54) and the third platform (55) are flat plate structures, which are fixed to the two supporting beams (52) by welding.

4. The protective pipe welding device according to claim 3, characterized in that, The drive component (6) is a motor; a support platform (551) is provided on the third platform (55) for placing the motor.

5. The protective pipe welding device according to claim 4, characterized in that, The adjustable support arm (8) includes a first threaded rod (81), an adjusting sleeve (83), and a second threaded rod (82). The first threaded rod (81) is fixed to the rotating shaft (7). The two ends of the adjusting sleeve (83) are threaded to the first threaded rod (81) and the second threaded rod (82) respectively. By rotating the adjusting sleeve (83), the first threaded rod (81) and the second threaded rod (82) can move towards each other or away from each other. An arc-shaped support plate (84) is fixed to the end of the second threaded rod (82). The arc-shaped support plate (84) abuts against the inner wall of the pipe (4).

6. The protective pipe welding device according to claim 5, characterized in that, The auxiliary rotation components (9) are arranged in pairs, and each auxiliary rotation component (9) can be selectively installed at a preset position on the first platform (53) or the second platform (54); The first platform (53) is provided with equal-spaced first through holes (531), and the second platform (54) is provided with equal-spaced second through holes (541), which are used to connect the auxiliary rotating assembly (9).

7. The protective pipe welding device according to claim 6, characterized in that, The auxiliary rotating assembly (9) includes a support column (91), the upper end surface of the support column (91) is an arc surface, and the two ends of the upper end surface are respectively rotatably connected to a rotating roller (92), the rotating roller (92) abuts against the outer wall of the pipe (4); the bottom of the support column (91) is also provided with a connecting plate (93), and the connecting plate (93) is provided with a connecting hole (94) for connecting to the first platform (53) or the second platform (54).

8. The protective pipe welding device according to claim 7, characterized in that, The support beam (52) is also fixedly connected to an L-shaped fixing plate (56), and the horizontal section of the fixing plate (56) has a third through hole (57) for fixing to the ground.

9. The protective pipe welding device according to claim 8, characterized in that, The movable frame (1) includes a crossbeam (12) and a column (13), and also includes a diagonal brace (14); The canopy (2) is also equipped with a slide rail (21) for sliding connection of the movable welding assembly (3).

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