Welding alignment tool for long-distance pipeline

Abstract

The utility model provides a long-distance pipeline welding alignment tool, and belongs to the technical field of pipeline welding. Comprising a first fixing ring; the second fixing ring is rotationally arranged at the bottom of the first fixing ring; the grooves are formed in the first fixing ring and the second fixing ring respectively; the extension springs are arranged in the grooves; and the base plates are respectively arranged on the first fixing ring and the second fixing ring and are connected with the extension spring. By arranging the extension spring, the base plate and the elastic cushion to be in contact with the surface of the pipeline, the unevenness of the surface of the pipeline is filled up, so that the alignment tool is in comprehensive contact with the surface of the pipeline and effectively clamps the surface of the pipeline, gaps are avoided after the pipeline is in butt joint, and meanwhile in the welding process, the pipeline can generate tiny deformation due to thermal expansion and cold contraction or stress. The extension spring, the base plate and the elastic cushion can provide appropriate compensation force, and the stability of the alignment position in the welding process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a long-distance pipeline welding butt tool. Background Art

[0002] Long-distance pipelines are important facilities for the long-distance transmission of energy products such as oil and gas. Their design and construction need to follow specific standards and specifications. In terms of material properties, long-distance pipelines are divided into two categories: metal pipelines and non-metallic pipelines. Long-distance pipelines are important facilities connecting production areas, storage depots and user units. They are used to transport commodity media such as oil and natural gas. Matching tools are required during the long-distance pipeline welding process.

[0003] At present, during the use of existing long-distance pipeline welding matching tools, the pipeline surface is uneven due to bumps, scratches, rust, etc. during transportation, loading and unloading, and storage. The uneven pipeline surface makes it impossible for the matching tools to accurately fit the two pipe end faces, affecting the matching accuracy during welding, causing the weld to deviate from the ideal position, forming an uneven gap, and affecting the uniformity and sealing of the gap during welding. Therefore, the present application provides a long-distance pipeline welding matching tool to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a long-distance pipeline welding butt joint tool to solve the problem that the existing long-distance pipeline welding butt joint tools cannot accurately fit the two pipeline end faces due to the uneven pipeline surface, which affects the butt joint accuracy during welding and forms an uneven gap.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A long-distance pipeline welding tool comprises: a first fixing ring; a second fixing ring rotatably arranged at the bottom of the first fixing ring; grooves respectively arranged in the first fixing ring and the second fixing ring; a plurality of tension springs arranged in the grooves; pads respectively arranged on the first fixing ring and the second fixing ring and connected to the tension springs; the grooves match the pads; an elastic pad arranged on the inner side of the pads; and the pads are used to fill the unevenness of the pipeline surface.

[0007] It also includes: a plurality of slide grooves, which are respectively arranged on the first fixing ring and the second fixing ring.

[0008] It also includes a sliding block, which is slidably arranged in the sliding groove.

[0009] It also includes: a plurality of auxiliary fixing rings, which are movable under the sliding block through threaded rods; a connecting support rod, which is arranged on the sliding block; and is used for slightly adjusting the position of the pipeline.

[0010] It also includes: a fixing part, which is arranged on the first fixing ring and the second fixing ring and is used to fix the pipeline.

[0011] The fixing part includes: a fixing frame, which is arranged on the first fixing ring and is in an inverted U shape; a moving frame, which is arranged on the second fixing ring; a moving bar, which is slidably arranged in the moving frame; clamping holes, which are respectively arranged on the moving frame and the moving bar, and are symmetrically arranged; two fixing holes, which are arranged at the top of the moving bar, and are symmetrical front to back; two elastic clamping rods, which are movably arranged in the fixing frame, and are symmetrical front to back; and are used for fixing according to pipes of different widths.

[0012] The elastic clamping rod is matched with the two fixing holes, and the notch of the fixing frame is matched with the moving strip.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] In the above scheme, by setting a tension spring, a pad and an elastic pad in contact with the pipe surface, the unevenness of the pipe surface is filled, so that the mating tool can achieve full contact and effective clamping with the pipe surface, avoiding the appearance of gaps after the pipes are docked. At the same time, during the welding process, the pipe will produce slight deformation due to thermal expansion and contraction or force. The tension spring, the pad and the elastic pad can provide appropriate compensation force to ensure the stability of the mating position during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the long-distance pipeline welding docking tool;

[0017] Figure 2 is a schematic diagram of the structure of the first fixing ring;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the groove;

[0019] Figure 4 It is a schematic diagram of the mobile frame structure;

[0020] Figure 5 This is a cross-sectional view of the fixed frame structure.

[0021] [reference numerals]

[0022] 1. First fixing ring; 2. Slide groove; 3. Second fixing ring; 4. Sliding block; 5. Connecting support rod; 6. Auxiliary fixing ring; 7. Fixing part; 8. Pad; 9. Groove; 10. Tension spring; 11. Elastic pad; 71. Fixed frame; 72. Moving frame; 73. Moving bar; 74. Clamping hole; 75. Fixing hole; 76. Elastic clamping rod.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The following is a detailed description of a long-distance pipeline welding tool provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0025] like Figure 1 and Figure 3 As shown, an embodiment of the utility model provides a long-distance pipeline welding docking tool, including: a first fixing ring 1; a second fixing ring 3, rotatably arranged at the bottom of the first fixing ring 1; a groove 9, respectively arranged in the first fixing ring 1 and the second fixing ring 3; a plurality of tension springs 10, arranged in the groove 9; a pad 8, respectively arranged on the first fixing ring 1 and the second fixing ring 3, and connected to the tension spring 10; the groove 9 matches the pad 8; an elastic pad 11, arranged on the inner side of the pad 8; used to fill the unevenness of the pipeline surface.

[0026] By arranging the elastic pad 11, the elastic pad 11 can compensate for the slight unevenness on the pipeline surface caused by manufacturing errors, bumps or rust during transportation and loading and unloading, and through its own elastic deformation, ensure that the pipeline end face can fit more closely and achieve an ideal mating state; by arranging the tension spring 10, during the welding process, the pipeline may produce slight deformation due to thermal expansion and contraction or stress, and the tension spring 10 can play a buffering role, absorb part of the energy, reduce the impact on the pipeline and the welding joint, reduce the weld stress, and improve the weld quality.

[0027] like Figure 1 and Figure 2As shown, it also includes: a plurality of slide grooves 2, which are respectively arranged on the first fixing ring 1 and the second fixing ring 3. By setting the slide grooves 2, which are slidably connected with the slider 4, a sliding track is provided for the slider 4, which facilitates the subsequent slight adjustment of the pipeline position.

[0028] like Figure 1 and Figure 2 As shown, it also includes: a slider 4, which is slidably arranged in the slide groove 2. By setting the slider 4, the slider 4 is fixedly connected to the connecting support rod 5, so that when the connecting support rod 5 moves, the slider 4 is driven to move, thereby moving the auxiliary fixing ring 6, and after the slider 4 is inserted into the slide groove 2, a part of it protrudes from the slide groove 2.

[0029] like Figure 1 and Figure 2 As shown, it also includes: a plurality of auxiliary fixing rings 6, which are movable under the slider 4 through threaded rods; a connecting support rod 5, which is set on the slider 4; and is used to slightly adjust the position of the pipeline.

[0030] An auxiliary fixing ring 6 is provided, the outer side of the auxiliary fixing ring 6 is connected to the threaded rod, the top thread of the threaded rod passes through the slider 4, and the auxiliary fixing ring 6 is driven to rise and fall by rotating the threaded rod, so as to auxiliary fix the pipeline. A soft layer is provided on the inner side of the auxiliary fixing ring 6, so that the pipeline will not be damaged when it is clamped and fixed.

[0031] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it also includes: a fixing portion 7, which is arranged on the first fixing ring 1 and the second fixing ring 3, and is used to fix the pipeline. By setting the fixing portion 7, the first fixing ring 1 and the second fixing ring 3 can be opened or closed, thereby ensuring that the first fixing ring 1 and the second fixing ring 3 are sleeved on the outside of the pipeline.

[0032] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the fixing part 7 includes: a fixing frame 71, which is arranged on the first fixing ring 1, and the fixing frame 71 is in an inverted U shape; a moving frame 72, which is arranged on the second fixing ring 3; a moving bar 73, which is slidably arranged in the moving frame 72; clamping holes 74, which are respectively arranged on the moving frame 72 and the moving bar 73, and are symmetrically arranged; two fixing holes 75, which are arranged at the top of the moving bar 73, and are symmetrical front and back; two elastic clamping rods 76, which are movably arranged in the fixing frame 71, and are symmetrical front and back; and are used for fixing according to pipes of different widths.

[0033] By setting a moving frame 72, a clamping rod is provided on the surface of the moving frame 72, and the clamping rod is inserted into the clamping hole 74 to fix the moving bar 73. Under normal circumstances, the top of the second fixing ring 3 is in contact with the bottom of the first fixing ring 71, and the elastic clamping rod 76 is pulled outward at the same time, so that the moving bar 73 is inserted into the fixing frame 71, and the elastic clamping rod 76 is reset so that the elastic clamping rod 76 is inserted into the fixing hole 75 to complete the fixation of the first fixing ring 1 and the second fixing ring 3; when the width of the pipeline is different, the clamping rod is taken out, the moving bar 73 is pulled, and the moving bar 73 is adjusted to a suitable length, and then the moving bar 73 is fixed by the clamping rod, and the above operation is repeated to fix the pipeline.

[0034] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the elastic clamping rod 76 is matched with the two fixing holes 75 , and the notch of the fixing frame 71 is matched with the moving bar 73 .

[0035] By setting an elastic clamping rod 76, a return spring is sleeved on the surface of the elastic clamping rod 76, and the return spring is located in the fixing frame 1, so that the elastic clamping rod 76 has a certain elastic deformation ability, and is quickly inserted into the clamping hole 74 when fixing the pipeline, thereby realizing rapid locking of the movable bar 73, and when unlocking, it only needs to be gently pulled to disengage from the clamping hole 74.

[0036] The utility model provides a technical solution in which the first fixing ring 1 and the second fixing ring 3 are opened and sleeved on the outer sides of the two pipes. The pipe surface contacts the elastic pad 11, driving the tension spring 10 to deform, and the uneven parts of the pipe surface are filled by the elastic pad 11, so that the first fixing ring 1 and the second fixing ring 3 completely fit the pipe surface; according to the width of different pipes, the clamping rod is taken out, the moving bar 73 is pulled, and the two elastic clamping rods 76 are pulled outward at the same time, the moving bar 73 is located in the recess of the fixing frame 71, and the moving bar 73 is fixed by inserting the elastic clamping rod 76 into the fixing hole 75, and then the clamping rod is inserted into the clamping hole 74 to complete the fixation of the moving bar 73, thereby completing the fixation of the two pipes; the slider 4 is inserted into the slide groove 2, and the threaded rod is rotated so that the auxiliary fixing ring 6 and the pipe are auxiliary clamped, and the connecting support rod 5 is rotated to slightly adjust the position of the pipe to ensure the accurate matching of the pipes.

[0037] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A long-distance pipeline welding tool, characterized in that: include: A first fixing ring (1); A second fixing ring (3) rotatably arranged at the bottom of the first fixing ring (1); Grooves (9) are respectively arranged in the first fixing ring (1) and the second fixing ring (3); A plurality of tension springs (10) are arranged in the groove (9); A backing plate (8) is respectively arranged on the first fixing ring (1) and the second fixing ring (3), and is connected to the tension spring (10); The groove (9) matches the pad (8); The elastic pad (11) is arranged on the inner side of the pad (8) and is used to fill the unevenness of the pipeline surface.

2. The long-distance pipeline welding tool according to claim 1 is characterized in that: Also includes: A plurality of slide grooves (2) are respectively arranged on the first fixing ring (1) and the second fixing ring (3).

3. The long-distance pipeline welding tool according to claim 2 is characterized in that: Also includes: A sliding block (4) is slidably arranged in the sliding groove (2).

4. The long-distance pipeline welding tool according to claim 3 is characterized in that: Also includes: A plurality of auxiliary fixing rings (6) are movable below the slider (4) via threaded rods; and are connected to support rods (5) and are arranged on the slider (4); Used to make minor adjustments to pipe position.

5. The long-distance pipeline welding tool according to claim 1 is characterized in that: Also includes: The fixing portion (7) is arranged on the first fixing ring (1) and the second fixing ring (3) and is used to fix the pipeline.

6. The long-distance pipeline welding tool according to claim 5 is characterized in that: The fixing part (7) comprises: A fixing frame (71) is arranged on the first fixing ring (1), and the fixing frame (71) is in an inverted U shape; A movable frame (72) is arranged on the second fixing ring (3); A moving bar (73) slidably disposed in the moving frame (72); The clamping holes (74) are respectively arranged on the moving frame (72) and the moving bar (73) in a symmetrical arrangement; Two fixing holes (75) are arranged on the top of the moving bar (73) and are symmetrical in the front and back directions; Two elastic clamping rods (76) are movably arranged in the fixing frame (71) and are symmetrical in front and back; and are used for fixing pipes of different widths.

7. The long-distance pipeline welding tool according to claim 6 is characterized in that: The elastic clamping rod (76) matches with the two fixing holes (75), and the notch of the fixing frame (71) matches with the moving bar (73).

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