Magnetic bar outer sleeve for inner scar scraping steel pipe

Abstract

The utility model relates to the field of inner scar scraping magnetic bars, and discloses a magnetic bar outer sleeve for an inner scar scraping steel pipe, which comprises a mounting column, a connecting column is fixed at one end of the mounting column, a magnetic bar body is fixed at one end of the connecting column, an outer sleeve body is slidably sleeved on the surface of the magnetic bar body, and a positioning opening is arranged on the surface of the outer sleeve body. A plurality of flowing holes are formed in the surface of the magnetic bar body, the thickness of the outer sleeve body is 70 mm, two supporting rings are fixed to the surface of the magnetic bar body, and the surfaces of the supporting rings are fixed to the inner wall face of the outer sleeve body. According to the utility model, the magnetic flux can be increased, the high-frequency current is further reduced, the risk of quality problems of welding seams is reduced, in addition, the two nylon support rings are additionally arranged on the surface of the magnetic bar body, so that the outer diameter of the magnetic bar body and the water flow in unit time can be increased, the cooling of the magnetic bar body is accelerated, and the service life of the magnetic bar body is prolonged. The service life of the magnetic bar body is prolonged, and the quality of pipe welding seams is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of internal scar scraping magnetic rods, and specifically relates to a magnetic rod outer sleeve for internal scar scraping of steel pipes. Background Art

[0002] The magnetic rod for internal scar scraping of steel pipes is an efficient tool specifically used for removing welding scars on the inner wall of steel pipes. It mainly uses strong magnetic force to adsorb ferromagnetic substances in the steel pipe, thereby effectively removing the welding scars generated during the welding process of the steel pipe and ensuring the smoothness and cleanliness of the inner wall of the steel pipe.

[0003] In the prior art, the magnetic rod outer sleeve used for 4-inch internal scar scraping steel pipes is 63mm, with a relatively small size and too low magnetic flux, which may cause the high-frequency current to increase and may result in weld quality problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic rod outer sleeve for internal scar scraping of steel pipes to solve the problems of relatively small size, too low magnetic flux, which may cause the high-frequency current to increase and may result in weld quality problems.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions: A magnetic rod outer sleeve for internal scar scraping of steel pipes, including a mounting column, one end of the mounting column is fixed with a connecting column, one end of the connecting column is fixed with a magnetic rod body, the surface of the magnetic rod body is slidably sleeved with an outer sleeve body, the surface of the outer sleeve body is provided with a positioning port, the surface of the magnetic rod body is provided with a plurality of flow holes, the thickness of the outer sleeve body is 70mm, the surface of the magnetic rod body is fixed with two support rings, and the surface of the support ring is fixed with the inner wall surface of the outer sleeve body.

[0006] Preferably, an installation groove is opened on one side of the mounting column, an installation plate is fixed inside the installation groove, two fixing ports are opened on one side of the installation plate, a main rotating wheel is rotatably arranged inside the fixing port, and an installation port is opened on one side of the mounting column.

[0007] Preferably, a fixing block is fixed inside the installation port, a sliding port is opened on one side of the fixing block, and a secondary rotating wheel is rotatably arranged inside the sliding port.

[0008] Preferably, rotating grooves are respectively opened on the top surface and the bottom surface inside the fixing port, rotating columns are respectively fixed on the top end and the bottom end of the main rotating wheel, bearings are fixed on the surface of the rotating column, the inner wall surface of the rotating groove is fixed with the surface of the outer ring of the bearing, rotating grooves are respectively opened on the top surface and the bottom surface inside the sliding port, bearings are fixed on the surface of the rotating column, and the inner wall surface of the rotating groove is fixed with the surface of the outer ring of the bearing.

[0009] Preferably, two limiting rings are fixedly sleeved on the surface of the outer sleeve body.

[0010] Preferably, limiting grooves are formed on the surfaces of the main runner and the secondary runner.

[0011] Compared with the prior art, a magnetic rod outer sleeve for an internal scarring steel pipe adopting the above technical solution has the following beneficial effects:

[0012] First, due to the existence of the outer sleeve body, the magnetic flux can be increased, thereby reducing the high-frequency current and the risk of quality problems in the weld. In addition, two support rings made of nylon are installed on the surface of the magnetic rod body, which can increase the outer diameter of the magnetic rod body and the water flow rate per unit time, accelerate the cooling of the magnetic rod body, extend the service life of the magnetic rod body, and improve the quality of the pipe weld;

[0013] Second, when the magnetic rod body slides and scars inside the pipe, the mounting post is also inside the pipe. At this time, as the pipe moves, the main runner will roll on the inner wall surface of the pipe, which can increase the stability of the mounting post inside the coffin, and thus increase the stability of the magnetic rod body during operation;

[0014] Third, the limiting ring can constrict the outer sleeve body on the surface of the magnetic rod body, which can increase the firmness of the outer sleeve body on the surface of the magnetic rod body, and use the limiting ring to increase the moving track of the main runner and the secondary runner inside the pipe to prevent position deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the embodiment.

[0016] Figure 2 It is an exploded three-dimensional schematic diagram of the embodiment.

[0017] Figure 3 It is an exploded schematic diagram of the outer sleeve and the support ring in the embodiment.

[0018] Figure 4 It is an exploded schematic diagram of the mounting post and the mounting plate in the embodiment.

[0019] In the figure: 1, mounting post; 2, connecting post; 3, magnetic rod body; 4, outer sleeve body; 5, positioning port; 6, flow hole; 7, mounting groove; 8, mounting plate; 9, fixing port; 10, main runner; 11, rotating groove; 12, rotating post; 13, mounting port; 14, fixing block; 15, sliding port; 16, secondary runner; 17, rotating column; 18, rotating groove; 19, support ring; 20, limiting ring; 21, limiting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will describe in detail the preferred embodiments of the present invention with reference to the accompanying drawings.

[0021] AsFigures 1 - 3 As shown in the figure, a magnetic rod outer sleeve for internal scarring of steel pipes includes an installation column 1. One end of the installation column 1 is fixed with a connecting column 2, and one end of the connecting column 2 is fixed with a magnetic rod body 3. The surface of the magnetic rod body 3 is slidably sleeved with an outer sleeve body 4. A positioning port 5 is opened on the surface of the outer sleeve body 4. A number of flow holes 6 are opened on the surface of the magnetic rod body 3. The thickness of the outer sleeve body 4 is 70 mm. Two support rings 19 are fixed on the surface of the magnetic rod body 3, and the surface of the support rings 19 is fixed to the inner wall surface of the outer sleeve body 4.

[0022] In use, due to the presence of the outer sleeve body 4, the magnetic flux can be increased, thereby reducing the high-frequency current and reducing the risk of quality problems in the weld. In addition, two support rings 19 made of nylon are installed on the surface of the magnetic rod body 3, which can increase the outer diameter of the magnetic rod body 3 and the water flow rate per unit time, accelerate the cooling of the magnetic rod body 3, extend the service time of the magnetic rod body 3, and improve the quality of the pipe weld.

[0023] As Figure 2 and Figure 4 shown, an installation groove 7 is opened on one side of the installation column 1. An installation plate 8 is fixed inside the installation groove 7. Two fixing ports 9 are opened on one side of the installation plate 8. A main runner 10 is rotatably arranged inside the fixing port 9. An installation port 13 is opened on one side of the installation column 1. A fixing block 14 is fixed inside the installation port 13. A sliding port 15 is opened on one side of the fixing block 14. A secondary runner 16 is rotatably arranged inside the sliding port 15. Rotation grooves 11 are respectively opened on the top and bottom surfaces inside the fixing port 9. Rotation columns 12 are respectively fixed to the top and bottom ends of the main runner 10. A bearing is fixed on the surface of the rotation column 12. The inner wall surface of the rotation groove 11 is fixed to the surface of the outer ring of the bearing. Rotation grooves 18 are respectively opened on the top and bottom surfaces inside the sliding port 15. Rotation columns 17 are rotatably arranged inside the rotation grooves 18. The bottom ends of the two rotation columns 17 are respectively fixed to the top and bottom ends of the secondary runner 16. A bearing is fixed on the surface of the rotation column 17. The inner wall surface of the rotation groove 18 is fixed to the surface of the outer ring of the bearing.

[0024] In use, when the magnetic rod body 3 slides and scars inside the pipe, the installation column 1 is also inside the pipe. At this time, as the pipe moves, the main runner 10 will roll on the inner wall surface of the pipe, which can increase the stability of the installation column 1 inside the coffin, and thus increase the stability of the magnetic rod body 3 during operation.

[0025] As Figure 3 and Figure 4 shown, two limiting rings 20 are fixedly sleeved on the surface of the outer sleeve body 4. Limiting grooves 21 are opened on the surfaces of the main runner 10 and the secondary runner 16.

[0026] In use, the limiting ring 20 can be used to constrict the outer sleeve body 4 on the surface of the magnetic rod body 3, thereby increasing the firmness of the position of the outer sleeve body 4 on the surface of the magnetic rod body 3, and the limiting ring 20 is used to increase the moving trajectories of the main runner 10 and the secondary runner 16 inside the pipe to prevent position deviation.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A magnetic rod outer sleeve for an internally scarred steel pipe, comprising a mounting post (1), characterized in that, One end of the mounting post (1) is fixed with a connecting post (2), one end of the connecting post (2) is fixed with a magnet bar body (3), the surface of the magnet bar body (3) is slidably sleeved with an outer sleeve body (4), a positioning opening (5) is formed on the surface of the outer sleeve body (4), a plurality of flow holes (6) are formed on the surface of the magnet bar body (3), the thickness of the outer sleeve body (4) is (70) mm, two support rings (19) are fixed on the surface of the magnet bar body (3), and the surface of the support ring (19) is fixed to the inner wall surface of the outer sleeve body (4).

2. The magnetic rod outer sleeve for internal scar scraping steel pipe according to claim 1, characterized in that: An installation groove (7) is formed on one side of the mounting post (1), a mounting plate (8) is fixed inside the installation groove (7), two fixing openings (9) are formed on one side of the mounting plate (8), a main runner (10) is rotatably arranged inside the fixing opening (9), and an installation opening (13) is formed on one side of the mounting post (1).

3. The magnetic rod outer sleeve for an internal scarring steel pipe according to claim 2, characterized in that: A fixing block (14) is fixed inside the installation opening (13), a sliding opening (15) is formed on one side of the fixing block (14), and a secondary runner (16) is rotatably arranged inside the sliding opening (15).

4. A magnetic rod outer sleeve for an internal scarring steel pipe according to claim 3, characterized in that: Rotating grooves (11) are respectively formed on the top surface and the bottom surface inside the fixing opening (9), rotating columns (12) are respectively fixed to the top end and the bottom end of the main runner (10), bearings are fixed on the surface of the rotating columns (12), the inner wall surface of the rotating groove (11) is fixed to the surface of the outer ring of the bearing, rotating grooves (18) are respectively formed on the top surface and the bottom surface inside the sliding opening (15), rotating columns (17) are rotatably arranged inside the rotating grooves (18), the bottom ends of the two rotating columns (17) are respectively fixed to the top end and the bottom end of the secondary runner (16), bearings are fixed on the surface of the rotating columns (17), and the inner wall surface of the rotating groove (18) is fixed to the surface of the outer ring of the bearing.

5. A magnetic rod outer sleeve for an internal scarring steel pipe according to claim 1, characterized in that: Two limiting rings (20) are fixedly sleeved on the surface of the outer sleeve body (4).

6. The magnetic rod outer sleeve for internal scar scraping steel pipe according to claim 2, wherein: Limiting grooves (21) are formed on the surfaces of the main runner (10) and the secondary runner (16).

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