Electromagnetic polishing equipment for metal pipeline

Abstract

The invention discloses electromagnetic polishing equipment for a metal pipeline, and relates to the technical field of electromagnetic polishing, the electromagnetic polishing equipment comprises a base, an injection pipe assembly, a strong magnetic assembly and a weak magnetic assembly, and the injection pipe assembly, the strong magnetic assembly and the weak magnetic assembly are sequentially arranged and mounted on the base; an injection tube and a threaded conveying structure are arranged in the injection tube assembly; the strong magnetic assembly comprises a strong magnet and a rotating ring; the weak magnetic assembly comprises a plurality of magnetic rings and a connecting assembly, the magnetic rings are arranged at equal intervals, the magnetic rings are electromagnets, the attraction force of the magnetic rings can be adjusted, the magnetic rings are connected to the connecting assembly through gear cylinders, the tail end of the connecting assembly is connected to a supporting frame, the supporting frame is fixedly installed on a base, and the supporting frame is fixedly installed on the base. Through cooperation of the strong magnet assembly, the electric push rod capable of driving the pipeline to move and the injection pipe assembly, all positions in the pipeline can be helped to be polished by abrasive particles driven by a strong magnet.

Description

Technical Field

[0001] The invention relates to the technical field of electromagnetic polishing, in particular to electromagnetic polishing equipment for metal pipelines. Background Art

[0002] The polishing of metal pipes is generally carried out by mechanical polishing, chemical polishing and the like. The polishing of the inside of some pipes is mainly carried out by mechanical polishing, chemical polishing and electromagnetic polishing. However, for some metal pipes with spiral grooves inside, the inside is not smooth, and it is difficult to achieve the required polishing requirements by mechanical polishing or chemical polishing.

[0003] When electromagnetic polishing is used, since the abrasive flow used for polishing generally flows from one end to the other end while being continuously driven to rotate by the external magnetic field, in this process, it is easier to polish the surface of the spiral groove facing the flow direction, while the surface of the spiral groove located on the back of the abrasive flow flow direction is not in the flow direction of the abrasive flow, and the force on these surfaces is not as strong as the surface facing the abrasive flow. Therefore, it is difficult to achieve the required polishing quality. It is often necessary to polish repeatedly or extend the polishing time of the abrasive in the pipeline, otherwise the polishing quality is difficult to guarantee. Summary of the invention

[0004] The object of the present invention is to provide a metal pipe electromagnetic polishing device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a metal pipe electromagnetic polishing device, comprising a base, an injection tube assembly, a strong magnetic assembly and a weak magnetic assembly, wherein the injection tube assembly, the strong magnetic assembly and the weak magnetic assembly are arranged and installed in sequence on the base; The injection tube assembly is provided with an injection tube and a threaded conveying structure, the injection tube is mounted on the stand through a sleeve, the threaded conveying structure is provided with a rotating structure, and the rotating structure is connected to the injection tube; The strong magnetic assembly includes a strong magnet and a rotating ring, wherein the strong magnet includes a plurality of pieces arranged at equal intervals and fixedly installed in the rotating ring; The weak magnetic component includes a magnetic ring and a connecting component. The magnetic ring includes several parts and is arranged at equal intervals. The magnetic ring is an electromagnet and the suction force is adjustable. The magnetic ring is connected to the connecting component through a gear cylinder. The end of the connecting component is connected to a support frame, and the support frame is fixedly mounted on a base.

[0006] Preferably, an injection head is provided at the end of the injection tube, an injection hole is provided on the injection head, a spiral blade is provided on the tube body of the injection tube, and an internal pipe of the injection tube is connected to the injection hole.

[0007] Preferably, the threaded conveying structure is mounted on a base frame, and the rotating structure is mounted on a threaded rod of the threaded conveying structure, and the injection tube can be driven to move forward and backward when the threaded rod rotates.

[0008] Preferably, the rotating structure includes a motor 1, a gear set and a frame, the motor 1 is fixedly mounted on the frame, one end of the gear set is connected to the output shaft of the motor 1, and the other end is connected to the injection tube, and the frame is mounted on the threaded conveying structure.

[0009] Preferably, the rotating ring includes a clamp, a protective cover and a large gear ring, the clamp is clamped on the outside of the strong magnet, the protective cover is fixedly installed on the outside of the clamp, the large gear ring is fixedly installed on the outside of the protective cover, the large gear ring is meshed with the gear below, the gear is fixedly installed on the output shaft of motor two, the motor two is fixedly installed on the base, and an isolation frame is provided on the side of the rotating ring.

[0010] Preferably, the magnetic ring is fixedly mounted on the inner side of the gear cylinder, one side of the gear cylinder is fixedly mounted on the connecting assembly, and the other side is rotatably connected to the support cage, and the bottom of the support cage is fixedly mounted on the base.

[0011] Preferably, a support ring is provided between the support cage and the gear cylinder, and the support ring is provided with tooth grooves meshing with the gear cylinder.

[0012] Preferably, the connecting assembly includes a connecting disk, a rotating ring and a bearing, the inner side of the connecting disk is connected to the gear cylinder, and the outer side is connected to the rotating ring. A bearing is provided on the inner side of the rotating ring, and the bearing is fixedly mounted on the fixed discharge structure. A friction wheel is provided under the rotating ring, and the friction wheel is fixedly mounted on the output shaft of motor three, and motor three is fixedly mounted on the base.

[0013] Preferably, the fixed discharge structure includes a fixed sleeve, a fixed cylinder and a cross-sealing frame, the fixed sleeve is installed in the fixed cylinder, a clamping block is provided at the inner surface mouth of the fixed sleeve, the cross-sealing frame is fixedly installed in the fixed cylinder, an electric push rod is connected to the cross-sealing frame, the electric push rod is fixedly installed in a supporting frame, a discharge pipe is provided on the supporting frame, and a partition is provided between the discharge pipe and the electric push rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The invention can help each position inside the pipeline to be polished by abrasive particles driven by a strong magnet by means of a strong magnetic component, an electric push rod that can drive the pipeline to move, and an injection tube component; 2. The weak magnetic component provided in the present invention can drive the abrasive particles to rotate in the opposite direction to the strong magnetic component, so that the abrasive particles located at the spiral groove in the pipeline can be reversed at the position of the magnetic ring, and squeezed with the abrasive particles rotating forward in the thread groove to achieve polishing on all surfaces of the thread groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a top view of the structure of the present invention; Figure 3 for Figure 2 Sectional structure diagram at inner AA; Figure 4 for Figure 3 A magnified view of the structure at inner B; Figure 5 for Figure 3 A magnified view of the structure at inner C; Figure 6 It is an enlarged view of the injection tube assembly of the present invention; Figure 7 This is an exploded view of the structure of the strong magnetic component of the present invention; Figure 8 This is an enlarged view of the weak magnetic component of the present invention Fig. 9 for Figure 3 Schematic diagram of abrasive flow in the metal pipe at position D.

[0016] In the figure: 1- base; 2-injection tube assembly; 21-injection tube; 211-injection head; 212-injection hole; 213-spiral blade; 22-screw conveying structure; 23-sleeve; 24-stand; 25-rotation structure; 251-motor 1; 252-gear set; 253-frame; 3-strong magnetic assembly; 31-strong magnet; 32-rotating ring; 321-clamp; 322-protective cover; 323-large gear ring; 324-gear; 325-motor 2; 33-isolation frame; 4-weak magnetic assembly; 41-magnetic ring; 411-support cage; 412-support ring; 42-connection assembly; 421-connection plate; 422-rotating circle; 423-bearing; 424-friction wheel; 425-motor three; 43-gear cylinder; 44-support frame; 45-fixed discharge structure; 451-fixed sleeve; 452-fixed cylinder; 453-cross blocking frame; 454-clamping block; 455-electric push rod; 46-discharge pipe; 47-partition; DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 9 The present invention provides a technical solution: an electromagnetic polishing device for a metal pipe, comprising a base 1, an injection tube assembly 2, a strong magnetic assembly 3 and a weak magnetic assembly 4, wherein the injection tube assembly 2, the strong magnetic assembly 3 and the weak magnetic assembly 4 are sequentially arranged and installed on the base 1, and the inside of the metal pipe is polished on the abrasive particles through the interaction between the strong magnetic assembly 3 and the weak magnetic assembly 4.

[0019] In this embodiment, the injection tube assembly 2 is provided with an injection tube 21 and a threaded conveying structure 22. The injection tube 21 is installed on a stand 24 through a sleeve 23. A rotating structure 25 is provided on the threaded conveying structure 22. The rotating structure 25 is connected to the injection tube 21. The abrasive flow mixed with the cleaning liquid is continuously injected into the metal pipe through the injection tube 21, and the position of the injection tube 21 is changed forward and backward through the threaded conveying structure 22, so that the abrasive flow can be injected at different positions inside the metal pipe.

[0020] In this embodiment, the strong magnetic component 3 includes a strong magnet 31 and a rotating ring 32. The strong magnet 31 includes a plurality of pieces arranged at equal intervals and fixedly installed in the rotating ring 32. The strong magnet 31 can provide stable strong magnetism. When the rotating ring 32 rotates, the abrasive flow in the metal pipe moves forward along the spiral groove. The rotation direction of the rotating ring 32 is the same as the forward direction of the spiral groove.

[0021] In this embodiment, the weak magnetic component 4 includes a magnetic ring 41 and a connecting component 42. The magnetic ring 41 includes a plurality of parts and is arranged at equal intervals. The magnetic ring 41 is an electromagnet and the suction force is adjustable. The magnetic ring 41 is connected to the connecting component 42 through a gear cylinder 43. The end of the connecting component 42 is connected to a support frame 44. The support frame 43 is fixedly mounted on the base 1. The magnetic force provided by the magnetic ring 41 is weaker than that of the strong magnet 31, and can drive the abrasive flow to move in the opposite direction of the spiral groove. The abrasive flow driven by the strong magnet 31 and the magnetic ring 41 collide and squeeze with each other, and the B surface behind the abrasive flow in the spiral groove is polished.

[0022] In this embodiment, an injection head 211 is provided at the end of the injection tube 21, and an injection hole 212 is provided on the injection head. A spiral blade 213 is provided on the tube body of the injection tube 21. The internal pipe of the injection tube 21 is connected with the injection hole 212. The injection head 211 is used to insert into the metal pipe. The injection holes 212 are evenly distributed on the side of the injection head 211, and the abrasive flow can be evenly injected into the metal pipe. The spiral blade 213 can help the incoming abrasive flow enter the metal pipe and prevent it from flowing out of the metal pipe through rotation.

[0023] In this embodiment, the threaded conveying structure 22 is installed on the base frame 321, and the rotating structure 25 is installed on the threaded rod of the threaded conveying structure 22. When the threaded rod rotates, the injection tube 21 can be driven to move forward and backward.

[0024] In this embodiment, the rotating structure 25 includes a motor 251, a gear set 252 and a frame 253. The motor 251 is fixedly mounted on the frame 253. One end of the gear set 252 is connected to the output shaft of the motor 251, and the other end is connected to the injection tube 21. The frame 253 is installed on the threaded conveying structure 22. The rotation of the gear set 252 driven by the motor 251 can drive the injection tube 21 to rotate, so as to better inject the abrasive flow into the metal pipe.

[0025] In this embodiment, the rotating ring 32 includes a splint 321, a protective cover 322 and a large toothed ring 323. The splint 321 is clamped on the outer side of the strong magnet 31, the protective cover 322 is fixedly installed on the outer side of the splint 321, the large toothed ring 323 is fixedly installed on the outer side of the protective cover 322, the large toothed ring 323 is meshed with the gear 324 below, the gear 324 is fixedly installed on the output shaft of the motor 2 325, and the motor 2 325 is fixedly installed on the base 1. An isolation frame 33 is provided on the side of the rotating ring 32, the splint 321 fixes the strong magnet 31, and the rotation of the gear 324 driven by the motor 2 325 drives the large toothed ring 324 and the splint 321 to rotate, thereby realizing the rotation of the strong magnet, and the isolation frame 33 is used to isolate the magnetic influence between the strong magnet 31 and the magnetic ring 41.

[0026] In this embodiment, the magnetic ring 41 is fixedly mounted on the inner side of the gear cylinder 43, one side of the gear cylinder 43 is fixedly mounted on the connecting assembly 42, and the other side is rotatably connected to the support cage 411, and the bottom of the support cage 411 is fixedly mounted on the base 1. The support cage 411 can support the gear cylinder 43 and the magnetic ring 41, ensuring the concentricity of multiple magnetic rings 41, so that the magnetic force of the magnetic ring 41 on the internal abrasive flow is more stable and uniform.

[0027] In this embodiment, a support ring 412 is provided between the support cage 411 and the gear cylinder 43. The support ring 412 is provided with tooth grooves meshing with the gear cylinder 43. The support ring 412 can provide support for the gear cylinder 43 to ensure the concentricity and stability of the gear cylinder 43 when rotating.

[0028] In this embodiment, the connecting assembly 42 includes a connecting disk 421, a rotating circle 422 and a bearing 423. The inner side of the connecting disk 421 is connected to the gear cylinder 43, and the outer side is connected to the rotating circle 422. A bearing 423 is provided on the inner side of the rotating circle 422, and the bearing 423 is fixedly mounted on the fixed discharge structure 45. A friction wheel 424 is provided under the rotating circle 422, and the friction wheel 424 is fixedly mounted on the output shaft of the motor three 425. The motor three 425 is fixedly mounted on the base 1. The rotation of the friction wheel 424 driven by the motor three 425 drives the rotating circle 422 to rotate. The rotation of the rotating circle 422 can drive the connecting disk 421 to rotate. The rotation of the connecting disk 421 can drive the gear cylinder 43 to rotate.

[0029] In this embodiment, the fixed discharge structure 45 includes a fixed sleeve 451, a fixed cylinder 452 and a cross-blocking frame 453. The fixed sleeve 451 is installed in the fixed cylinder 452. The inner surface of the fixed sleeve 451 is provided with a clamping block 454. The cross-blocking frame 453 is fixedly installed in the fixed cylinder 452. The cross-blocking frame 453 is connected to an electric push rod 455. The electric push rod 455 is fixedly installed in the support frame 44. A discharge pipe 46 is provided on the support frame 44. A partition 47 is provided between the discharge pipe 46 and the electric push rod 455. The fixed sleeve 451 can clamp the metal pipe through friction through the clamping block 454. The electric push rod 455 drives the fixed sleeve 541 to move forward and backward, which can drive the metal pipe to move forward and backward. At the same time, the discharge pipe 46 at the end can help discharge the abrasive flow.

[0030] Working principle: When in use, first pass the metal pipe through the isolation frame 33 and insert the end into the clamp block 454 to fix it, then start the motor 2 325 and the motor 3 425 to rotate the strong magnet 31 and the magnetic ring 41, and then inject the abrasive flow into the metal pipe through the injection tube 21. After entering the metal pipe, the abrasive flow will first be driven by the strong magnet 31 to continuously rotate and polish the inside of the metal pipe. At the same time, due to the abrasive flow continuously injected from the rear and the extrusion of the spiral groove, it will continuously move forward along the spiral groove in a compacted state. At this time, it is mainly the A side of the spiral groove that is subjected to force. When encountering the magnetic ring 41 at the front end, since the rotation directions of the magnetic ring 41 and the strong magnet 31 are opposite, the abrasive flow will move in the opposite direction of the spiral groove. However, under the action of the abrasive flow continuously pushed forward by the rear end, the two squeeze and rub against each other, generate a force on the B side of the spiral groove, and polish it. At the same time, the metal pipe is driven to move back and forth continuously by the electric push rod 455, which helps to continuously change the position of the metal pipe and the strong magnet and the magnetic ring, and helps to complete the polishing.

[0031] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A metal pipeline electromagnetic polishing device, characterized in that: It comprises a base (1), an injection tube assembly (2), a strong magnetic assembly (3) and a weak magnetic assembly (4), wherein the injection tube assembly (2), the strong magnetic assembly (3) and the weak magnetic assembly (4) are arranged and installed in sequence on the base (1); The injection tube assembly (2) is provided with an injection tube (21) and a threaded conveying structure (22); the injection tube (21) is mounted on a stand (24) via a sleeve (23); a rotating structure (25) is provided on the threaded conveying structure (22); and the rotating structure (25) is connected to the injection tube (21); The strong magnetic assembly (3) comprises a strong magnet (31) and a rotating ring (32); the strong magnet (31) comprises a plurality of pieces arranged at equal intervals and all fixedly mounted in the rotating ring (32); The weak magnetic component (4) comprises a magnetic ring (41) and a connecting component (42); the magnetic ring (41) comprises a plurality of parts which are arranged at equal intervals; the magnetic ring (41) is an electromagnet and has an adjustable suction force; the magnetic ring (41) is connected to the connecting component (42) via a gear cylinder (43); the end of the connecting component (42) is connected to a support frame (44); and the support frame (43) is fixedly mounted on the base (1).

2. The electromagnetic polishing device for metal pipes according to claim 1, characterized in that: An injection head (211) is provided at the end of the injection tube (21), an injection hole (212) is provided on the injection head, a spiral blade (213) is provided on the body of the injection tube (21), and an internal pipe of the injection tube (21) is connected to the injection hole (212).

3. The electromagnetic polishing device for metal pipes according to claim 1, characterized in that: The threaded conveying structure (22) is mounted on a base frame (321), and the rotating structure (25) is mounted on a threaded rod of the threaded conveying structure (22). When the threaded rod rotates, the injection tube (21) can be driven to move forward and backward.

4. The electromagnetic polishing device for metal pipes according to claim 1, characterized in that: The rotating structure (25) comprises a motor 1 (251), a gear set (252) and a frame (253); the motor 1 (251) is fixedly mounted on the frame (253); one end of the gear set (252) is connected to the output shaft of the motor 1 (251), and the other end is connected to the injection tube (21); and the frame (253) is mounted on the threaded conveying structure (22).

5. The electromagnetic polishing device for metal pipes according to claim 1, characterized in that: The rotating ring (32) comprises a clamping plate (321), a protective cover (322) and a large toothed ring (323); the clamping plate (321) is clamped on the outside of the strong magnet (31); the protective cover (322) is fixedly mounted on the outside of the clamping plate (321); the large toothed ring (323) is fixedly mounted on the outside of the protective cover (322); the large toothed ring (323) is meshed with a gear (324) below; the gear (324) is fixedly mounted on the output shaft of a second motor (325); the second motor (325) is fixedly mounted on a base (1); and an isolation frame (33) is provided on the side of the rotating ring (32).

6. The electromagnetic polishing device for metal pipes according to claim 1, characterized in that: The magnetic ring (41) is fixedly mounted on the inner side of the gear cylinder (43); one side of the gear cylinder (43) is fixedly mounted on the connecting assembly (42); the other side is rotatably connected to the supporting cage (411); and the bottom of the supporting cage (411) is fixedly mounted on the base (1).

7. The electromagnetic polishing device for metal pipes according to claim 6, characterized in that: A support ring (412) is provided between the support cage (411) and the gear cylinder (43), and a tooth groove meshing with the gear cylinder (43) is provided on the support ring (412).

8. The electromagnetic polishing device for metal pipes according to claim 1, characterized in that: The connecting assembly (42) comprises a connecting disk (421), a rotating ring (422) and a bearing (423); the inner side of the connecting disk (421) is connected to the gear cylinder (43), and the outer side is connected to the rotating ring (422); a bearing (423) is provided on the inner side of the rotating ring (422); the bearing (423) is fixedly mounted on the fixed discharge structure (45); a friction wheel (424) is provided below the rotating ring (422); the friction wheel (424) is fixedly mounted on the output shaft of the motor three (425); and the motor three (425) is fixedly mounted on the base (1).

9. The electromagnetic polishing device for metal pipes according to claim 8, characterized in that: The fixed discharge structure (45) comprises a fixed sleeve (451), a fixed cylinder (452) and a cross-blocking frame (453); the fixed sleeve (451) is installed in the fixed cylinder (452); a clamping block (454) is provided at the inner surface of the fixed sleeve (451); the cross-blocking frame (453) is fixedly installed in the fixed cylinder (452); an electric push rod (455) is connected to the cross-blocking frame (453); the electric push rod (455) is fixedly installed in a support frame (44); a discharge pipe (46) is provided on the support frame (44); and a partition plate (47) is provided between the discharge pipe (46) and the electric push rod (455).

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