Welding degaussing device

Abstract

The utility model discloses a welding degaussing device, and belongs to the technical field of degaussing devices, the welding degaussing device comprises a fixing ring and a transformer, the outer surface of the fixing ring is fixedly clamped with four degaussing assemblies which are uniformly distributed in a circumferential array, and the degaussing assemblies are electrically connected with the transformer through wires; positioning blocks and mounting frames are fixedly mounted on the outer walls of the two sides of the fixing ring; a rotating handle is rotated to drive a threaded rod to rotate, and a telescopic rod is in threaded connection with the threaded rod, so that the telescopic rod can be driven to slide in a positioning block through rotation of the threaded rod, and the position of a clamping block is conveniently adjusted to be attached to the outer wall of a pipeline; according to the demagnetizing device, the fixing ring is arranged on the fixing ring, so that the fixing ring is fixed to the to-be-welded pipelines of different sizes for subsequent demagnetizing work, the pipelines are demagnetized through cooperation of the demagnetizing assembly, the wire and the transformer, in other words, the demagnetizing device can demagnetize the to-be-welded pipelines of different diameters within a certain range, and the demagnetizing device is quite convenient to use and high in applicability.

Description

Technical Field

[0001] This application relates to the field of demagnetizing devices, and more particularly to a welding demagnetizing device. Background Technology

[0002] Pipeline transportation plays a vital role in the development of the national economy, and long-distance oil and gas pipelines, as an important component of pipeline transportation, also play an irreplaceable role. Due to the limited length of pipelines, welding is unavoidable during long-distance transportation. However, due to production, environmental, and material factors, pipelines are often magnetic, and the magnetic field within the pipeline can cause problems such as difficulty in igniting the electric arc and arc deviation during welding, thus affecting the welding quality.

[0003] The published patent document with announcement number CN213366301U provides a pipe end demagnetizing device. This published patent document can eliminate the magnetic core of the pipe end to be welded by setting a demagnetizing mechanism on the fixed ring, so as to prevent the phenomenon of welding arc blow during the welding process and improve the welding quality. However, when using the above device, if the size of the fixed ring does not match the size of the pipe, the fixed ring needs to be manually held to fit it onto the pipe, which is very inconvenient to use. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a welding demagnetization device, which overcomes the shortcomings of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: a welding demagnetizing device, comprising a fixed ring and a transformer, wherein four demagnetizing components are fixedly snapped onto the outer surface of the fixed ring in a circumferential array, the demagnetizing components are electrically connected to the transformer via wires, positioning blocks and mounting brackets are fixedly installed on both outer walls of the fixed ring, a telescopic rod is slidably inserted into the interior of the positioning block, a threaded rod is provided inside the mounting bracket, a handle is fixedly connected to the end of the threaded rod away from the positioning block, the telescopic rod is threaded onto the outer surface of the threaded rod, and a clamping block is fixedly installed at the end of the telescopic rod away from the mounting bracket.

[0006] By adopting the above technical solution, the threaded rod is rotated by turning the handle. Since the telescopic rod and the threaded rod are threadedly connected, the telescopic rod can be driven to slide inside the positioning block by rotating the threaded rod. This allows the position of the clamping block to be adjusted so that it fits against the outer wall of the pipe, thereby fixing the fixing ring to the pipes of different sizes to be welded for subsequent demagnetization. The pipe is demagnetized by the cooperation between the demagnetization component, the wire and the transformer. In other words, this device can demagnetize pipes of different diameters to be welded within a certain range. It is very convenient to use and has strong applicability.

[0007] As a preferred technical solution of this application, the demagnetizing component includes a U-shaped frame snapped onto the outer surface of the fixed ring, a spring fixedly connected to the outer wall of the U-shaped frame, an iron core fixedly connected to the other end of the spring, a coil wound around the outer surface of the iron core, and the output end of the transformer electrically connected to the two ends of the coil via a wire.

[0008] By adopting the above technical solution, the magnetic core on the pipe to be welded can be eliminated, preventing arc blow during welding and improving welding quality.

[0009] As a preferred technical solution of this application, elastic rubber pads are fixedly connected to the inner walls on both sides of the U-shaped frame, and the elastic rubber pads are located between the U-shaped frame and the fixing ring.

[0010] By adopting the above technical solution, the elastic rubber pad has a certain elastic deformation capability, which allows the U-shaped frame to be firmly clamped to the fixing ring.

[0011] As a preferred technical solution of this application, a limiting hole is formed through the interior of the positioning block, the telescopic rod slides back and forth inside the limiting hole, and a protrusion adapted to the limiting hole is fixedly connected to the outer surface of the telescopic rod.

[0012] By adopting the above technical solution, the cooperation between the limiting hole and the convex strip ensures that the telescopic rod can only slide along the specified track, which helps to improve the stability of the telescopic rod during movement and prevents the telescopic rod from shifting position.

[0013] As a preferred technical solution of this application, the clamping block is arc-shaped and its outer surface is rough.

[0014] By adopting the above technical solution, the clamping block is designed with an arc shape so that it can fit tightly against the outer wall of the pipe, and the outer surface of the clamping block is roughened to effectively increase friction.

[0015] As a preferred technical solution of this application, a bearing seat is provided on the outer surface of the threaded rod near the throttle, the bearing seat is fixedly installed inside the mounting frame, and the threaded rod passes through the mounting frame through the bearing seat and is movably connected to the mounting frame.

[0016] By adopting the above technical solution and setting a bearing housing, the threaded rod can rotate flexibly inside the mounting bracket.

[0017] As a preferred technical solution of this application, the fixing ring is composed of a semicircular ring one, a hinge and a semicircular ring two, and a connecting block is fixedly connected to the outer wall of the semicircular ring one and the semicircular ring two on the side away from the hinge. The two connecting blocks are fixedly installed together by bolts and nuts.

[0018] By adopting the above technical solution, the semicircular ring one, hinge and semicircular ring two are fixedly assembled together to form a complete fixed ring through the cooperation between the connecting block, bolt and nut, so that the fixed ring can be smoothly removed from the pipe after the welding work is completed.

[0019] As a preferred technical solution of this application, handles are fixedly installed on the outer walls of both the first and second semicircular rings, and anti-slip rubber sleeves are fitted onto the outer surfaces of the handles.

[0020] By adopting the above technical solution, the demagnetizing device is made easy for staff to carry by setting a handle, and the anti-slip rubber sleeve is set to increase friction and prevent slippage.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. In this utility model, the threaded rod is rotated by turning the handle. Since the telescopic rod and the threaded rod are threadedly connected, the telescopic rod can be driven to slide inside the positioning block by rotating the threaded rod. This allows the position of the clamping block to be adjusted so that it fits against the outer wall of the pipe, thereby fixing the fixing ring to the pipes of different sizes to be welded for subsequent demagnetization. The pipe is demagnetized by the cooperation between the demagnetization component, the wire and the transformer. In other words, this device can demagnetize pipes of different diameters within a certain range, and it is very convenient to use and has strong applicability.

[0023] 2. In this utility model, the cooperation between the limiting hole and the convex strip ensures that the telescopic rod can only slide along the specified track, which helps to improve the stability of the telescopic rod during movement and prevents the telescopic rod from shifting position. The cooperation between the connecting block, bolt and nut fixes the semi-circular ring one, hinge and semi-circular ring two together to form a complete fixed ring, so that the fixed ring can be easily removed from the pipe after the welding work is completed.

[0024] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0025] 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:

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2This is a partial structural breakdown diagram of this application;

[0028] Figure 3 This is a schematic diagram of the composition and structure of the demagnetizing component of this application;

[0029] Figure 4 This is a schematic diagram of the threaded rod connection in this application.

[0030] In the diagram: 1. Fixing ring; 101. Semicircular ring one; 102. Hinge; 103. Semicircular ring two; 2. Demagnetizing assembly; 201. U-shaped frame; 202. Spring; 203. Iron core; 204. Coil; 205. Elastic rubber pad; 3. Wire; 4. Transformer; 5. Positioning block; 6. Telescopic rod; 7. Clamping block; 8. Mounting bracket; 9. Threaded rod; 10. Bearing seat; 11. Thruster; 12. Limiting hole; 13. Protrusion; 14. Connecting block; 15. Handle. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] like Figure 1 - Figure 4 As shown, this embodiment provides a welding demagnetizing device, including a fixed ring 1 and a transformer 4. Four demagnetizing components 2 are uniformly distributed in a circumferential array and fixedly fastened to the outer surface of the fixed ring 1. The demagnetizing components 2 are electrically connected to the transformer 4 via wires 3. Positioning blocks 5 and mounting brackets 8 are fixedly installed on both outer walls of the fixed ring 1. A telescopic rod 6 is slidably inserted into the interior of the positioning block 5. A threaded rod 9 is provided inside the mounting bracket 8. A handle 11 is fixedly connected to the end of the threaded rod 9 away from the positioning block 5. The telescopic rod 6 is threaded onto the outer surface of the threaded rod 9, and a clamp is fixedly installed at the end of the telescopic rod 6 away from the mounting bracket 8. When in use, the holding block 7 is rotated by turning the handle 11 to drive the threaded rod 9 to rotate. Since the telescopic rod 6 and the threaded rod 9 are threadedly connected, the telescopic rod 6 can be driven to slide inside the positioning block 5 by rotating the threaded rod 9, so as to adjust the position of the clamping block 7 to fit against the outer wall of the pipe, thereby fixing the fixing ring 1 on the pipe to be welded of different sizes for subsequent demagnetization. The pipe is demagnetized by the cooperation between the demagnetization component 2, the wire 3 and the transformer 4. That is, the device can demagnetize pipes of different diameters within a certain range, which is very convenient to use and has strong applicability.

[0033] In this embodiment, as Figure 3As shown, the demagnetizing component 2 includes a U-shaped frame 201 that is snapped onto the outer surface of the fixed ring 1. A spring 202 is fixedly connected to the outer wall of the U-shaped frame 201. An iron core 203 is fixedly connected to the other end of the spring 202. A coil 204 is wound around the outer surface of the iron core 203. The output end of the transformer 4 is electrically connected to both ends of the coil 204 through a wire 3. In use, the magnetic core on the pipe to be welded can be eliminated, preventing the phenomenon of arc blow during welding and improving the welding quality.

[0034] In this embodiment, as Figure 1 and 3 As shown, elastic rubber pads 205 are fixedly connected to the inner walls of both sides of the U-shaped frame 201. The elastic rubber pads 205 are located between the U-shaped frame 201 and the fixing ring 1. During use, the elastic rubber pads 205 have a certain elastic deformation capacity, so that the U-shaped frame 201 can be firmly locked onto the fixing ring 1.

[0035] In this embodiment, as Figure 2 As shown, a limiting hole 12 is provided through the interior of the positioning block 5. The telescopic rod 6 slides back and forth inside the limiting hole 12. The outer surface of the telescopic rod 6 is fixedly connected with a protrusion 13 that matches the limiting hole 12. In use, the cooperation between the limiting hole 12 and the protrusion 13 ensures that the telescopic rod 6 can only slide along the specified track, which helps to improve the stability of the telescopic rod 6 during movement and prevents the telescopic rod 6 from shifting its position.

[0036] In this embodiment, as Figure 1 As shown, the clamping block 7 has an arc-shaped shape and a rough outer surface. In use, the arc-shaped shape of the clamping block 7 allows it to fit tightly against the outer wall of the pipe, and the rough outer surface of the clamping block 7 can effectively increase the friction.

[0037] In this embodiment, as Figure 1 and 4 As shown, a bearing seat 10 is provided on the outer surface of the threaded rod 9 near the throttle 11. The bearing seat 10 is fixedly installed inside the mounting frame 8. The threaded rod 9 passes through the mounting frame 8 through the bearing seat 10 and is movably connected to the mounting frame 8. In use, the bearing seat 10 allows the threaded rod 9 to rotate flexibly inside the mounting frame 8.

[0038] In this embodiment, as Figure 2As shown, the fixing ring 1 is composed of a semi-circular ring 101, a hinge 102, and a semi-circular ring 2 103. Both semi-circular ring 101 and semi-circular ring 2 103 have connecting blocks 14 fixedly connected to their outer walls on the side away from the hinge 102. The two connecting blocks 14 are fixedly installed together by bolts and nuts. In use, the semi-circular ring 101, hinge 102, and semi-circular ring 2 103 are fixedly assembled together by the cooperation between the connecting blocks 14, bolts, and nuts to form a complete fixing ring 1, so that the fixing ring 1 can be smoothly removed from the pipe after the welding work is completed.

[0039] In this embodiment, as Figure 2 As shown, handles 15 are fixedly installed on the outer walls of both semicircular ring 101 and semicircular ring 103. The outer surface of the handles 15 is fitted with anti-slip rubber sleeves. When in use, the handles 15 make it convenient for staff to carry the demagnetizing device, and the anti-slip rubber sleeves increase friction to prevent slippage.

[0040] The working principle of this utility model is as follows: When using the welding demagnetizing device of this application, the threaded rod 9 is rotated by turning the handle 11. Since the telescopic rod 6 and the threaded rod 9 are threadedly connected, the telescopic rod 6 can be driven to slide inside the positioning block 5 by rotating the threaded rod 9. This allows the position of the clamping block 7 to be adjusted so that it fits against the outer wall of the pipe, thereby fixing the fixing ring 1 on the pipes to be welded of different sizes for subsequent demagnetizing work. The pipe is demagnetized by the cooperation between the demagnetizing component 2, the wire 3 and the transformer 4. That is, this device can demagnetize pipes of different diameters within a certain range, which is very convenient to use and has strong applicability.

[0041] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A welding degaussing device comprising a fixing ring (1) and a transformer (4), characterized in that, The outer surface of the fixed ring (1) is fixedly connected with four demagnetization assemblies (2) which are uniformly distributed in a circumferential array, the demagnetization assemblies (2) are electrically connected with the transformer (4) through wires (3), both sides of the outer wall of the fixed ring (1) are fixedly installed with positioning blocks (5) and mounting racks (8), the inside of the positioning block (5) is slidably inserted with an expansion rod (6), the inside of the mounting rack (8) is provided with a threaded rod (9), one end of the threaded rod (9) away from the positioning block (5) is fixedly connected with a handle (11), the expansion rod (6) is threadedly sleeved on the outer surface of the threaded rod (9), and one end of the expansion rod (6) away from the mounting rack (8) is fixedly installed with a clamping block (7).

2. A welding degaussing device according to claim 1, wherein The demagnetization assembly (2) comprises a U-shaped frame (201) clamped on the outer surface of the fixed ring (1), the outer wall of the U-shaped frame (201) is fixedly connected with a spring (202), the other end of the spring (202) is fixedly connected with an iron core (203), the outer surface of the iron core (203) is woundly connected with a coil (204), and the output end of the transformer (4) is electrically connected with both ends of the coil (204) through wires (3).

3. A welding degaussing device according to claim 2, wherein Both sides of the inner wall of the U-shaped frame (201) are fixedly connected with elastic rubber pads (205), and the elastic rubber pads (205) are located between the U-shaped frame (201) and the fixed ring (1).

4. The welding degaussing apparatus of claim 1, wherein The inside of the positioning block (5) is provided with a limiting hole (12), the expansion rod (6) slides back and forth in the limiting hole (12), and the outer surface of the expansion rod (6) is fixedly connected with a convex strip (13) matched with the limiting hole (12).

5. The welding degaussing apparatus of claim 1 wherein, The clamping block (7) is arc-shaped, and the outer surface of the clamping block (7) is rough.

6. A welding degaussing device according to claim 1, wherein The outer surface of the threaded rod (9) is provided with a bearing seat (10) on one side close to the handle (11), the bearing seat (10) is fixedly installed in the inside of the mounting rack (8), and the threaded rod (9) penetrates through the mounting rack (8) and is movably connected with the mounting rack (8) through the bearing seat (10).

7. The welding degaussing apparatus of claim 1 wherein, The fixed ring (1) is composed of a semicircular ring one (101), a hinge (102) and a semicircular ring two (103), and the outer walls of the semicircular ring one (101) and the semicircular ring two (103) away from the hinge (102) are fixedly connected with connecting blocks (14), and the two connecting blocks (14) are fixedly installed together by bolts and nuts.

8. A welding degaussing apparatus according to claim 7, wherein The outer walls of the semicircular ring one (101) and the semicircular ring two (103) are fixedly installed with handles (15), and the outer surface of the handle (15) is sleeved with a non-slip rubber sleeve.

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