Rapid aligning device suitable for large-pipe-diameter welding

Abstract

The utility model discloses a device suitable for large pipe diameter welding rapid alignment, which comprises a radial adjusting rod, a radial ejector rod is arranged at the end part of the radial adjusting rod, the outer side of the radial ejector rod is in threaded connection with a bracket, one side of the bracket is in threaded connection with an axial ejector rod, an axial adjusting rod is arranged at one end of the axial ejector rod, and the other end of the axial adjusting rod is in threaded connection with the bracket. The other end of the axial ejector rod is rotationally connected with a reverse-thread axial adjusting block, the reverse-thread axial adjusting block and a to-be-adjusted piece are fixed through a bolt, and the right end of the support and a counterpart piece are fixed through a bolt. And a connecting rod penetrates through the interior of the radial ejector rod, the end, extending out of the radial ejector rod, of the connecting rod is rotationally connected to the mounting cylinder, and a rotating rod is rotationally connected to the inner side of the mounting cylinder. According to the device suitable for large-pipe-diameter welding and rapid alignment, radial adjustment or axial adjustment can be completed on the basis that the device is reasonably utilized, and the efficiency of large-pipe-diameter welding and alignment is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of large-diameter pipe fitting technology in engineering construction, specifically a device suitable for rapid fitting of large-diameter pipes during welding. Background Technology

[0002] In pipeline welding construction, a qualified joint is the foundation for good welding. To ensure that the coaxiality of the pipelines meets the technical specifications during joint welding (especially for high-temperature, high-pressure and buried pipelines), and to make the inner and outer walls of the two welded pipelines as level as possible, so as to avoid poor welding quality caused by non-parallelism of the pipes and further expansion of the accident, it is necessary to repeatedly adjust the coaxiality of the pipelines before welding.

[0003] Generally, aligning small pipes is relatively easy, and there are some mature pipe welding alignment tools on the market that can easily achieve the coaxiality required by technical specifications for two pipes to be welded. However, with the advancement of science and technology, a number of high-pressure, large-diameter pipes have appeared in engineering construction. For this problem, there is currently no device on the market suitable for welding alignment of large-diameter pipes. The common method is to use external force to force the two pipes to align, such as hammering with a sledgehammer or welding a large number of auxiliary steel plates to both ends of the weld bevel to force the two pipes to connect. This solution is detrimental to the weld joint area, time-consuming and labor-intensive, and causes unnecessary waste of materials.

[0004] To solve the technical challenges of welding and aligning large-diameter pipes, and to reduce unnecessary material waste, it is necessary to invent a device suitable for rapid welding and aligning of large-diameter pipes. Utility Model Content

[0005] The purpose of this invention is to provide a device suitable for rapid welding of large-diameter pipes, in order to solve the problem mentioned in the background art that there are currently no good auxiliary tools for welding large-diameter pipes on the market.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device suitable for rapid welding of large-diameter pipes, comprising a radial adjusting rod, a radial push rod installed at the end of the radial adjusting rod, a bracket threadedly connected to the outer side of the radial push rod, an axial push rod threadedly connected to one side of the bracket, an axial adjusting rod installed at one end of the axial push rod, a reverse-thread axial adjusting block rotatably connected to the other end of the axial push rod, the reverse-thread axial adjusting block being fixed to the workpiece to be adjusted by bolts, and the right end of the bracket being fixed to the workpiece to be welded by bolts;

[0007] A connecting rod runs through the interior of the radial push rod. One end of the connecting rod, extending out of the radial push rod, is rotatably connected to the mounting cylinder. A rotating rod is rotatably connected to the inner side of the mounting cylinder. A vertical conical tooth is keyed to the outer side of the rotating rod. A flat conical tooth is keyed to the end of the connecting rod.

[0008] Preferably, the radial push rod and the axial push rod are distributed perpendicularly to each other, and the radial push rod and the axial push rod respectively penetrate the vertical side of the bracket. The bracket has a side "L" shaped structure, and the radial and axial push rods can be used to adjust the radial and axial positions of the pipeline.

[0009] Preferably, the end of the axial push rod that extends into the anti-thread axial adjustment block has a side "T" shaped structure. The axial push rod can rotate inside the anti-thread axial adjustment block, which allows the axial push rod to rotate smoothly and drive the anti-thread axial adjustment block to move when it moves.

[0010] Preferably, the connecting rods are distributed at equal angles about the transverse centerline of the mounting cylinder, and the connecting rods have a cross-shaped structure, which can realize the limiting connection between the connecting rods and the radial push rods. When the connecting rods rotate, they can drive the radial push rods to rotate without restricting the movement of the radial push rods.

[0011] Preferably, the radial push rod has a groove inside that matches the shape of the connecting rod, and the radial push rod can slide on the outside of the connecting rod, so that when the connecting rod drives the radial push rod to rotate, the radial push rod can also move synchronously.

[0012] Preferably, the flat bevel teeth are distributed at equal angles with respect to the transverse centerline of the vertical bevel teeth, and the flat bevel teeth and the vertical bevel teeth are distributed perpendicularly to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This device is suitable for rapid welding of large-diameter pipes. It uses the radial push rod with external thread and the cooperation of the axial push rod and the bracket to quickly push the two ends of the pipe to be aligned to the same coaxiality from the inside of the pipe. The operator only needs to directly bolt the device bracket and the reverse thread axial adjustment block, and then control the rotation of the corresponding push rod to complete the large-diameter pipe alignment operation. This device can be reused.

[0015] (2) This device is suitable for rapid welding of large-diameter pipes and is even more suitable for welding of large-diameter pipes. Both radial and axial adjustments can be completed on the basis of reasonable use of this device, which significantly improves the efficiency of welding of large-diameter pipes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0017] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the diagram;

[0018] Figure 3 This is a side sectional view of the present invention.

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B in the diagram;

[0020] Figure 5 This is a schematic diagram of the main cross-sectional structure of the radial push rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection structure between the radial push rod and the connecting rod of this utility model;

[0022] Figure 7 This is a schematic diagram of the connection structure between the axial push rod and the anti-thread axial adjustment block of this utility model.

[0023] In the diagram: 1. Radial adjusting rod; 2. Radial push rod; 3. Bracket; 4. Axial push rod; 5. Axial adjusting rod; 6. Component to be adjusted; 7. Alignment component; 8. Reverse thread axial adjusting block; 9. Connecting rod; 10. Mounting cylinder; 11. Rotating rod; 12. Vertical bevel gear; 13. Flat bevel gear. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-7 The present invention provides the following technical solution: a device suitable for rapid welding of large-diameter pipes, comprising a radial adjusting rod 1, a radial push rod 2 installed at the end of the radial adjusting rod 1, a bracket 3 threadedly connected to the outer side of the radial push rod 2, an axial push rod 4 threadedly connected to one side of the bracket 3, an axial adjusting rod 5 installed at one end of the axial push rod 4, and a reverse thread axial adjusting block 8 rotatably connected to the other end of the axial push rod 4, the reverse thread axial adjusting block 8 being fixed to the workpiece 6 to be adjusted by bolts, and the right end of the bracket 3 being fixed to the workpiece 7 by bolts; a connecting rod 9 passing through the interior of the radial push rod 2, one end of the connecting rod 9 extending out of the radial push rod 2 being rotatably connected to the mounting cylinder 10, a rotating rod 11 being rotatably connected to the inner side of the mounting cylinder 10, a vertical conical tooth 12 being keyed to the outer side of the rotating rod 11, and a flat conical tooth 13 being keyed to the end of the connecting rod 9;

[0026] Radial push rod 2 and axial push rod 4 are distributed perpendicularly to each other, and radial push rod 2 and axial push rod 4 respectively penetrate the vertical side of bracket 3. Bracket 3 has a side "L" shaped structure. The end of axial push rod 4 that extends into reverse thread axial adjustment block 8 has a side "T" shaped structure. Axial push rod 4 can rotate inside reverse thread axial adjustment block 8. Connecting rod 9 is distributed at equal angles with respect to the transverse center line of mounting cylinder 10. Connecting rod 9 has a "+" shaped structure. Radial push rod 2 has a sliding groove inside that matches the shape of connecting rod 9. Radial push rod 2 can slide on the outside of connecting rod 9. Flat bevel teeth 13 are distributed at equal angles with respect to the transverse center line of vertical bevel teeth 12. Flat bevel teeth 13 and vertical bevel teeth 12 are distributed perpendicularly to each other.

[0027] Working principle: When using this device suitable for rapid alignment of large-diameter pipes, place the two pipes to be aligned at the alignment position, i.e., the adjustment part 6 and the alignment part 7. The misalignment between the two pipes is small, and the position after normal hoisting and assembly is sufficient. Enter the large-diameter pipe for operation. Bolt the device support 3 to the inside of the lower pipe, i.e., the alignment part 7. Pre-fit the radial push rod 2 onto the outside of the connecting rod 9, so that the support 3 is bolted to the inner wall of the alignment part 7 in a triangular distribution area. Place the radial push rod 2 inside the higher pipe, i.e., the adjustment part 6. Rotate the rotating rod 11, so that the rotating rod 11 drives the vertical conical tooth 12 connected by the outer key. Rotation causes the vertical bevel tooth 12 to rotate, which in turn drives the outer meshing flat bevel tooth 13 to rotate. The flat bevel tooth 13 then drives the inner key-connected connecting rod 9 to rotate. The connecting rod 9 then drives the outerly sleeved radial push rod 2 to rotate, causing the radial push rod 2 to rotate and move on the threaded connection bracket 3. At the same time, the radial push rod 2 moves on the connecting rod 9 until the radial push rod 2 presses against the inner wall of the part to be adjusted 6. Continuing to rotate, the radial push rod 2 begins to press the part to be adjusted 6 against the inner wall of the mating part 7 at the same horizontal plane until the inner walls of the two pipes are at the same horizontal line. The triangularly distributed radial push rod 2 can ensure that the pipe circumference achieves this effect. The alignment of this part of the weld area has been completed.

[0028] The drive rod 11 reverses, and through the transmission of the meshing flat bevel teeth 13 and vertical bevel teeth 12, the drive rod 9 drives the radial push rod 2 to reverse, thereby moving the radial push rod 2 away from the inner wall of the part to be adjusted 6. This causes the radial push rod 2 to be misaligned with the axial push rod 4, which controls the rotation of the axial adjustment rod 5. The axial adjustment rod 5 rotates and moves on the threaded bracket 3, pushing the reverse thread axial adjustment block 8 into the part to be adjusted 6. The reverse thread axial adjustment block 8 is locked on the inner wall of the part to be adjusted 6 with bolts. The axial adjustment rod 5 is rotated in the opposite direction at the same time. Since the mating part 7 is not moving, the axial adjustment rod 5 can rotate and move to the right. One end of the axial adjustment rod 5 rotates inside the reverse thread axial adjustment block 8, so it can pull the reverse thread axial adjustment block 8 to move to the right. The reverse thread axial adjustment block 8 pulls the part to be adjusted 6 toward the mating part 7 until the appropriate position is reached, realizing the docking of the two pipes. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0029] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A device suitable for quick alignment of large pipe diameters for welding, comprising a radial adjustment lever (1), characterised in that: The end of the radial adjusting rod (1) is provided with a radial jack (2), the outer side of the radial jack (2) is threadedly connected with a support (3), one side of the support (3) is threadedly connected with an axial jack (4), one end of the axial jack (4) is provided with an axial adjusting rod (5), the other end of the axial jack (4) is rotationally connected with a reverse thread axial adjusting block (8), the reverse thread axial adjusting block (8) is fixedly connected with a to-be-adjusted part (6) through a bolt, the right end of the support (3) is fixedly connected with a counterpart (7) through a bolt. The inside of the radial jack (2) is penetrated by a connecting rod (9), one end of the connecting rod (9) extending out of the radial jack (2) is rotationally connected on a mounting cylinder (10), the inside of the mounting cylinder (10) is rotationally connected with a rotating rod (11), the outside of the rotating rod (11) is key-connected with a vertical bevel gear (12), the end of the connecting rod (9) is key-connected with a horizontal bevel gear (13).

2. A device for quick alignment of large pipe diameters for welding as claimed in claim 1, wherein: The radial jack (2) and the axial jack (4) are perpendicular to each other, the radial jack (2) and the axial jack (4) penetrate the vertical side of the support (3) respectively, and the support (3) is a side "L" shaped structure.

3. A device for quick alignment of large pipe diameters for welding as claimed in claim 1, wherein: The end of the axial jack (4) extending into the reverse thread axial adjusting block (8) is a side "T" shaped structure, and the axial jack (4) can rotate in the inside of the reverse thread axial adjusting block (8).

4. A device for quick alignment of large pipe diameters for welding as claimed in claim 1, wherein: The connecting rod (9) is equally angularly distributed about the transverse center line of the mounting cylinder (10), and the connecting rod (9) is a "cross" shaped structure.

5. A device for quick alignment of large pipe diameters for welding as claimed in claim 1, wherein: The inside of the radial jack (2) is provided with a sliding groove matched with the shape of the connecting rod (9), and the radial jack (2) can slide on the outside of the connecting rod (9).

6. A device for quick alignment of large pipe diameters for welding as claimed in claim 1, wherein: The horizontal bevel gear (13) is equally angularly distributed about the transverse center line of the vertical bevel gear (12), and the horizontal bevel gear (13) and the vertical bevel gear (12) are perpendicular to each other.

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