Large-diameter pipeline welding aligning device

Abstract

The utility model relates to the technical field of pipeline welding, and discloses a large-diameter pipeline welding aligning device which comprises a base and two supporting wheels, the two supporting wheels are rotatably installed and fixed above the two sides of the middle of the base, sliding grooves are transversely formed in the positions, on the two sides of the supporting wheels, in the base, and sliding plates are slidably arranged in the sliding grooves. A sliding block is integrally fixed to the upper portion of the sliding plate and penetrates to the upper portion of the base, moving wheels are installed on the surface of the sliding block, a frame is fixed to the position, on the side edges of the supporting wheels, of the upper portion of the base, and an electric push rod is vertically installed on the upper portion of the frame. According to the technical scheme, the supporting wheels at the fixed positions are arranged to support the pipeline, meanwhile, the moving wheels are arranged to support the tail end of the pipeline and then move outwards to support the pipeline, and finally the moving wheels are pressed and locked through the pressing blocks, so that the trend that the tail end of the pipeline moves upwards can be reduced, and the working efficiency is improved. And the pipeline openings can be conveniently and accurately aligned, so that the welding work can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a large-diameter pipeline welding butt joint device. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for conveying gas, liquid or fluid with solid particles. Usually, the fluid is pressurized by a blower, compressor, pump and boiler, and then flows from the high-pressure part of the pipeline to the low-pressure part. The fluid can also be conveyed by its own pressure or gravity. In addition to flanges, there are also welding connections between pipelines, and the fractures need to be aligned during welding.

[0003] Since the welding needs to be performed around the interface, the fracture needs to be supported at a certain height, which makes it inconvenient to align the fracture. In addition, the fracture is supported but its far end is not supported, so there is a downward force, which makes the pipe at the fracture tend to move upward under the action of the fulcrum and cannot be precisely aligned. Therefore, we propose a large-diameter pipe welding joint device. Utility Model Content

[0004] The purpose of the utility model is to provide a large-diameter pipe welding docking device, which supports the pipe by setting a support wheel at a fixed position, and at the same time sets a moving wheel to support the pipe end and then move it outward to support the pipe, and finally lock it by pressing and locking it with a pressing block, which can reduce the tendency of the pipe end to move upward, facilitate the accurate alignment of the pipe mouth, and then facilitate the welding work, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-diameter pipe welding docking device, comprising a base and a support wheel, wherein the support wheel is provided with two and rotatably installed and fixed on both sides above the middle part of the base; slide grooves are horizontally opened inside the base on both sides of the support wheel, and slide plates are slidably arranged inside the slide grooves, and a slider is fixed as a whole above the slide plate, the slider passes through the top of the base, and a moving wheel is installed on the surface of the slider; a frame is fixed above the base on the side of the support wheel, and an electric push rod is vertically installed above the frame, the protruding end of the electric push rod passes through the inner side of the frame, and a pressure block is fixed at the end of the protruding end.

[0006] By adopting the above technical solution, the supporting wheel and the moving wheel can be placed close to each other first, and then the end support of the pipe can be easily placed above the two. Subsequently, the moving wheel is moved outward to make the end of the pipe as horizontal as possible, which can facilitate its pushing and alignment. Finally, the pressure block is used to press and lock it to achieve precise alignment of the pipe mouth, thereby facilitating welding work and ensuring welding quality.

[0007] Optionally, the outer rings of the supporting wheel and the moving wheel are both provided with an annular groove, and the annular groove is arranged around the outer rings of the supporting wheel and the moving wheel.

[0008] By adopting the above technical solution and utilizing the setting of the annular groove, the pipeline can be supported and guided when the supporting wheel and the moving wheel rotate.

[0009] Optionally, guide wheels are installed on the upper and lower surfaces of the side of the sliding block, and the guide wheel supports are placed in the groove body on the surface of the sliding groove.

[0010] By adopting the above technical solution, the sliding of the skateboard can be guided and the resistance encountered during sliding can be reduced by using the guide wheel to support and abut against the inner surface of the slide groove.

[0011] Optionally, the support wheel and the moving wheel have the same height, and the annular grooves of the two wheels have the same size.

[0012] By adopting the above technical solution, the support wheels and the moving wheels arranged at the same height can maintain lateral support for the end portion of the pipeline and ensure the alignment of the end of the pipeline.

[0013] Optionally, a pressing groove is provided on the bottom surface of the pressing block, and the pressing groove is arc-shaped.

[0014] By adopting the above technical solution, the arc-shaped pressing groove can play a limiting and pressing role on the upper part of the pipeline.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The technical solution of the present application realizes the support of the pipeline by setting a support wheel at a fixed position, and at the same time, a movable wheel is set to support the end of the pipeline and move it outward to support the pipeline, and finally it is pressed and locked by a pressure block, which can reduce the tendency of the end of the pipeline to move upward, and facilitate the accurate alignment of the pipeline mouth, thereby facilitating the welding work.

[0017] 2. The technical solution of the present application can reduce the resistance of the slider when the slider is driven to slide, thereby ensuring its normal left and right movement, by installing guide wheels on the upper and lower surfaces of the slider to support the surface of the slide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the large-diameter pipeline welding docking device of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the moving wheel of the large-diameter pipe welding docking device of the utility model;

[0021] Figure 3 The utility model is a schematic diagram of the block structure of the large-diameter pipeline welding docking device.

[0022] In the figure: 1, base; 11, slide groove; 2, support wheel; 3, frame; 31, electric push rod; 32, pressure block; 33, pressure groove; 4, slider; 41, moving wheel; 42, ring groove; 43, slide plate; 44, guide wheel. DETAILED DESCRIPTION

[0023] See also Figure 1-3 The utility model provides a technical solution: a large-diameter pipe welding docking device, comprising a base 1 and two support wheels 2, the two support wheels 2 are rotatably mounted and fixed above both sides of the middle of the base 1, and the support wheels 2 on both sides maintain the same height, and the outer ring of the support wheel 2 is surrounded by an annular groove 42 for supporting and limiting the position of the pipe, and when aligning the end of the pipe, it can be rotated to guide the movement of the pipe;

[0024] A moving wheel 41 is arranged above the base 1 on both sides of the support wheel 2. The moving wheels 41 on both sides have the same height. Similarly, an annular groove 42 is arranged around the outer ring of the moving wheel 41. When the moving wheel 41 is moved left and right, the moving wheel 41 can be rotated and cooperate with the annular groove 42 to guide and support its movement. At the same time, the support wheel 2 and the moving wheel 41 have the same height, and the annular groove 42 of the two has the same size;

[0025] The base 1 below the moving wheel 41 is provided with a slide groove 11 transversely, and a slide plate 43 is slidably arranged inside the slide groove 11. A slide block 4 is integrally fixed above the slide block 43, and the slide block 4 penetrates to the top of the base 1, and the moving wheel 41 is installed and fixed on the upper surface of the slide block 4, and guide wheels 44 are installed on the upper and lower surfaces of the side of the slide block 4, and the guide wheel 44 is supported in a groove body on the surface of the slide groove 11, and the groove body is arranged parallel to the slide groove 11, which can change the sliding friction of the original ring plate placed in the slide groove 11 into roller friction, ensuring its smooth left and right sliding and driving the moving wheel 41 to change position. When the moving wheel 41 approaches the middle, it can conveniently lift the end of the pipeline and support it above it. When it moves to the outside, it can realize the horizontal support of the end of the pipeline, ensuring that the ends of the two can be aligned relatively smoothly.

[0026] A frame 3 is fixed above the base 1 on the side of the support wheel 2, and an electric push rod 31 is vertically installed above the frame 3. The protruding end of the electric push rod 31 passes through the inner side of the frame 3, and a pressure block 32 is welded and fixed to the end of the electric push rod 31. A pressure groove 33 is provided on the bottom surface of the pressure block 32. When the pressure block 32 is driven to descend in height by the electric push rod 31, the pressure groove 33 can be close to the upper surface of the pipe to press and lock it.

[0027] When in use, first make the slider 4 drive the moving wheel 41 to move toward the direction of the supporting wheel 2. During the movement, the slide plate 43 is placed in the slide groove 11 to slide and is guided under the support of the guide wheel 44. Then, the two pipes to be welded are placed on the left and right sides respectively. Then, the end faces to be welded are lifted and the end supports are placed in the annular groove 42 above the supporting wheel 2 and the moving wheel 41. Then, the pipes on both sides are pushed inward to make the fractures of the two close to each other and aligned. In this process, the slider 4 is pushed away from the supporting wheel 2 at the same time, so that it drives the moving wheel 41 is away from the supporting wheel 2, and the position support of the pipeline away from the fracture is realized, thereby reducing the tendency of the pipeline fracture to move upward due to the existence of the fulcrum of the lever principle, and realizing the lateral stable support of the pipeline. Finally, the electric push rod 31 is controlled to drive the pressure block 32 to descend in height, so that it can be pressed against the outer surface of the pipeline through the pressure groove 33 at the bottom, and the limit locking effect on the pipelines on both sides is realized. Then the pipeline can be welded. After the welding work is completed, the electric push rod 31 is controlled to drive the pressure block 32 to rise in height to release the lock on the pipeline, and the welded pipeline can be taken out.

Claims

1. A large-diameter pipe welding docking device, comprising a base (1) and a support wheel (2), characterized in that: The support wheels (2) are provided with two and are rotatably mounted and fixed above both sides of the middle of the base (1); The base (1) on both sides of the support wheel (2) is provided with a sliding groove (11) in a transverse direction, a sliding plate (43) is slidably arranged inside the sliding groove (11), a sliding block (4) is integrally fixed above the sliding block (43), the sliding block (4) penetrates the top of the base (1), and a moving wheel (41) is installed on the surface of the sliding block (4); A frame (3) is fixed above the base (1) on the side of the support wheel (2), and an electric push rod (31) is vertically installed above the frame (3). The extended end of the electric push rod (31) penetrates the inner side of the frame (3), and a pressure block (32) is fixed at the end of the extended end.

2. A large-diameter pipe welding butt joint device according to claim 1, characterized in that: The outer rings of the supporting wheel (2) and the moving wheel (41) are both provided with an annular groove (42), and the annular groove (42) is arranged around the outer rings of the supporting wheel (2) and the moving wheel (41).

3. A large-diameter pipe welding butt joint device according to claim 1, characterized in that: Guide wheels (44) are installed on the upper and lower surfaces of the side of the sliding block (4), and the guide wheels (44) are supported and placed in the groove body on the surface of the sliding groove (11).

4. A large-diameter pipe welding butt joint device according to claim 2, characterized in that: The support wheel (2) and the moving wheel (41) have the same height, and the annular grooves (42) of the two wheels have the same size.

5. A large-diameter pipe welding butt joint device according to claim 1, characterized in that: A pressing groove (33) is provided on the bottom surface of the pressing block (32), and the pressing groove (33) is arc-shaped.

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