Rust removal device for weld joints in pipeline

Abstract

The utility model relates to the technical field of pipeline rust removal, in particular to a pipeline internal weld joint rust removal device which comprises a weld joint rust removal device body, a mounting plate is arranged at the bottom of the weld joint rust removal device body, a threaded rod is arranged on the upper side of the mounting plate, a sliding block is sleeved on the threaded rod, and a large motor is fixedly welded on the upper surface of the sliding block. A rotating column is arranged on the upper side of the large motor, a fixing shaft is fixedly connected to the upper surface of the rotating column and sleeved with a connecting sleeve, a sliding rod is arranged at one end of the connecting sleeve, and a grinding wheel is arranged at one end of the sliding rod. The pipeline polishing device has the beneficial effects that the mounting plate is fixed to the ground or the wall surface near a pipeline needing to be polished, a sliding block is driven to slide through rotation of a threaded rod, so that the polishing position of a polishing wheel is conveniently adjusted, and then weld joints at different positions are conveniently polished and derusted; and therefore, the polishing wheel rotates and reciprocates at the same time, so that the polishing wheel can better perform rust removal and polishing on the vicinity of a welding seam in the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline rust removal, in particular to a pipeline internal weld rust removal device. Background Art

[0002] It is very common in industrial enterprises to plug and weld small-diameter pipes into large-diameter pipes. When corrosive media run in the pipeline, the anti-corrosion coating at the pipeline welding point will fall off or be damaged, and weld corrosion and bimetallic corrosion are very likely to occur. Since personnel cannot enter the inside of the pipeline, it is impossible to repair the weld and perform anti-corrosion protection from the inside. At present, industrial enterprises that have such equipment defects are sealed and bandaged from the outside, but the inside continues to corrode. The equipment is replaced when it stops running.

[0003] In the prior art, the existing small pipe internal weld rust removal tooling still has some shortcomings during use. For example, when corrosion defects appear in the small pipe welds and leakage occurs, they can only be sealed and wrapped from the outside, or sleeved, etc., and since the welds cannot be rusted, the anti-corrosion treatment during shutdown cannot protect the welds from further corrosion or erosion, and cannot well meet people's use needs. Utility Model Content

[0004] The utility model aims to provide a device for removing rust from the internal weld of a pipeline to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for removing rust from internal welds of a pipeline, comprising: a body of the weld rust removal device, a mounting plate being arranged at the bottom of the body of the weld rust removal device, a threaded rod being arranged on the upper side of the mounting plate, and a slider being sleeved on the threaded rod.

[0006] A large motor is welded and fixed on the upper surface of the slider, a rotating column is arranged on the upper side of the large motor, a fixed shaft is fixedly connected to the upper surface of the rotating column, a connecting sleeve is sleeved on the fixed shaft, a sliding rod is arranged at one end of the connecting sleeve, and a grinding wheel is arranged at one end of the sliding rod.

[0007] Preferably, a slide is fixedly connected to the upper surface of the mounting plate, a support seat is fixedly installed on one side of the slide, one end of the threaded rod is rotatably sleeved on the side of the slide, and the other end of the threaded rod is fixedly connected to the connecting shaft through a coupling.

[0008] Preferably, the connecting shaft is rotatably sleeved in the supporting seat, the slider is threadedly connected to the threaded rod, the bottom of the slider is slidably connected to the slide table, and a worm gear is fixedly sleeved at one end of the connecting shaft.

[0009] Preferably, fixed seats are provided on both sides of the worm wheel, one side of the fixed seat is fixedly connected to the side of the slide, a worm is meshed on the lower side of the worm wheel, and both ends of the worm are rotatably sleeved in the fixed seat.

[0010] Preferably, a fixed shell is fixedly connected to the upper side of the large motor, a driving gear is fixedly connected to the output end of the large motor, and the driving gear is rotatably sleeved in the fixed shell.

[0011] Preferably, the rotating column is rotatably sleeved in the fixed shell, and the fixed sleeve at the bottom of the rotating column is provided with a driven gear, which meshes with the driving gear for transmission.

[0012] Preferably, a supporting shell is fixedly connected to one side of the fixed shell, and the supporting shell is slidably connected to the sliding rod. One end of the connecting sleeve is fixedly sleeved on the fixed shaft, and the other end of the connecting sleeve is rotatably connected to one end of the sliding rod through the fixed rod. A small motor is welded and fixed to the other end of the sliding rod, and the grinding wheel fixed sleeve is arranged on the output end of the small motor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The mounting plate is fixed on the ground or wall near the pipe that needs to be polished, and the slider is driven to slide by rotating the threaded rod, so that the polishing position of the polishing wheel can be adjusted, and then the welds at different positions inside the pipe can be polished and rust-removed. The rotation of the large motor indirectly drives the rotating column to rotate, so that the rotating column drives the fixed shaft to move, and the fixed shaft indirectly drives the connecting sleeve to move, and the connecting sleeve drives the sliding rod to reciprocate, thereby realizing the reciprocating motion of the polishing wheel, and then the polishing wheel rotates and reciprocates at the same time, so that the polishing wheel can better remove rust and polish near the weld inside the pipe, thereby improving the polishing efficiency and polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0018] Figure 4 It is a top view schematic diagram of the internal structure of the utility model;

[0019] In the figure: 1. Welding seam rust removal device body; 2. Mounting plate; 3. Threaded rod; 4. Sliding block; 5. Large motor; 6. Rotating column; 7. Fixed shaft; 8. Connecting sleeve; 9. Sliding rod; 10. Grinding wheel; 11. Sliding table;

[0020] 12. Support seat; 13. Coupling; 14. Connecting shaft; 15. Worm gear; 16. Fixed seat; 17. Worm;

[0021] 18. Fixed housing; 19. Driving gear; 20. Driven gear; 21. Support housing; 22. Fixed rod; 23. Small motor. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 4 The utility model provides a technical solution: a device for removing rust from the weld inside a pipeline, comprising: a body 1 of the weld rust removal device, a mounting plate 2 is arranged at the bottom of the body 1 of the weld rust removal device, a threaded rod 3 is arranged on the upper side of the mounting plate 2, a slider 4 is sleeved on the threaded rod 3, a large motor 5 is welded and fixed on the upper surface of the slider 4, a rotating column 6 is arranged on the upper side of the large motor 5, a fixed shaft 7 is fixedly connected to the upper surface of the rotating column 6, a connecting sleeve 8 is sleeved on the fixed shaft 7, a sliding rod 9 is arranged at one end of the connecting sleeve 8, and a grinding wheel 10 is arranged at one end of the sliding rod 9.

[0025] The mounting plate 2 is fixed on the ground or wall near the pipe that needs to be polished, and the slider 4 is driven to slide by the rotation of the threaded rod 3, so that the polishing position of the polishing wheel 10 can be adjusted, and then the welds at different positions can be polished and rust-removed. The rotation of the large motor 5 indirectly drives the rotating column 6 to rotate, so that the rotating column 6 drives the fixed shaft 7 to move, and the fixed shaft 7 indirectly drives the connecting sleeve 8 to move, and the connecting sleeve 8 drives the sliding rod 9 to reciprocate, so as to realize the reciprocating motion of the polishing wheel 10, and then the polishing wheel 10 rotates and reciprocates at the same time, so that the polishing wheel 10 can better remove rust and polish the vicinity of the weld inside the pipe, thereby improving the polishing efficiency and polishing effect.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, a slide 11 is fixedly connected to the upper surface of the mounting plate 2, a support seat 12 is fixedly installed on one side of the slide 11, one end of the threaded rod 3 is rotatably sleeved on the side of the slide 11, and the other end of the threaded rod 3 is fixedly connected to the connecting shaft 14 through a coupling 13. The support seat 12 stably supports the connecting shaft 14, and the connecting shaft 14 drives the threaded rod 3 to rotate through the connection of the coupling 13. The connecting shaft 14 is rotatably sleeved in the support seat 12, the slider 4 is threadedly connected to the threaded rod 3, the bottom of the slider 4 is slidably connected to the slide 11, and a worm gear 15 is fixedly sleeved on one end of the connecting shaft 14 Through the threaded connection between the threaded rod 3 and the slider 4, it is convenient to drive the slider 4 to slide on the slide 11 while the threaded rod 3 rotates. The connecting shaft 14 passes through one side of the slide 11 and is fixedly connected to the worm gear 15. Fixed seats 16 are provided on both sides of the worm gear 15. One side of the fixed seat 16 is fixedly connected to the side of the slide 11. A worm 17 is meshed on the lower side of the worm wheel 15. Both ends of the worm 17 are rotatably sleeved in the fixed seat 16. The fixed seat 16 provides limited support for the worm 17, thereby facilitating the rotation of the worm 17. One end of the worm 17 is fixedly connected to a handwheel, thereby facilitating the movement of the worm 17.

[0028] The worm 17 is driven to rotate in the fixed seat 16 by turning the hand wheel, so that the worm 17 and the worm wheel 15 are meshed and transmitted, and the worm wheel 15 drives the threaded rod 3 to rotate through the connection of the connecting shaft 14 and the coupling 13. A slider 4 is threadedly sleeved on the threaded rod 3, thereby driving the slider 4 to slide on the slide 11, so that the position of the slider 4 is adjusted, and then the position of the grinding wheel 10 is adjusted, so that the grinding wheel 10 is convenient for grinding and rust removal of welds at different positions inside the pipeline, which improves convenience. At the same time, the worm wheel 17 has self-locking properties after meshing with the worm 15, so that the grinding and rust removal process can be more stable, avoiding the problem of inaccurate grinding position caused by the sliding of the slider 4, and reducing the possibility of damage to the inside of the pipeline by the grinding wheel 10.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, a fixed shell 18 is fixedly connected to the upper side of the large motor 5, a driving gear 19 is fixedly connected to the output end of the large motor 5, and the driving gear 19 is rotatably sleeved in the fixed shell 18. The large motor 5 is welded and fixed to the upper surface of the slider 4, thereby increasing the stability of the grinding wheel 10. The output end of the large motor 5 is fixedly installed with a driving gear 19, so that the driving gear 19 is driven to rotate by the large motor 5. The rotating column 6 is rotatably sleeved in the fixed shell 18, and a driven gear 20 is fixedly sleeved at the bottom of the rotating column 6. The driven gear 20 is meshed with the driving gear 19 for transmission. The fixed shell 18 supports the rotating column 6, thereby facilitating the rotation of the rotating column 6. The driven gear 20 is fixedly sleeved at the bottom of the rotating column 6, so that the driving gear 20 is driven by the driving gear 19. The meshing transmission of 19 and the driven gear 20 causes the driven gear 20 to drive the driving column 6 to rotate. A supporting shell 21 is fixedly connected to one side of the fixed shell 18. The supporting shell 21 is slidably connected to the slide rod 9. One end of the connecting sleeve 8 is fixedly sleeved on the fixed shaft 7. The other end of the connecting sleeve 8 is rotatably connected to one end of the slide rod 9 through a fixed rod 22. A small motor 23 is welded and fixed to the other end of the slide rod 9. The grinding wheel 10 is fixedly sleeved on the output end of the small motor 23. The supporting shell 21 provides limited support to the slide rod 9 when sliding. The fixed rod 22 is fixedly sleeved on one end of the slide rod 9. The fixed shaft 7 is transmitted through the connecting sleeve 8, so that the slide rod 9 reciprocates, and then the slide rod 9 drives the small motor 23 to reciprocate, and finally the grinding wheel 10 reciprocates.

[0031] The large motor 5 drives the driving gear 19 fixedly connected to its output end to rotate, and the driving gear 19 meshes with the driven gear 20 for transmission, so that the driven gear 20 drives the rotating column 6 to rotate in the fixed shell 18, and the upper surface of the rotating column 6 is fixedly connected to the fixed shaft 7, so that the fixed shaft 7 drives one end of the connecting sleeve 8 to move, and the other end of the connecting sleeve 8 is connected to the fixed rod 22 through rotation, thereby driving the sliding rod 9 to move. Since the fixed shaft 7 is eccentrically arranged, the sliding rod 9 can slide back and forth in the supporting shell 21, so that the sliding rod 9 drives the small motor 23 fixedly installed at one end thereof to reciprocate, and then the small motor 23 drives the grinding wheel 10 to reciprocate inside the pipeline, and finally realizes that the small motor 23 drives the grinding wheel 10 to rotate and also makes the grinding wheel 10 reciprocate, so that the grinding wheel 10 can better perform comprehensive grinding around the weld, expand the grinding range, improve the grinding and rust removal effect, and improve the grinding and rust removal efficiency.

[0032] During actual use, the mounting plate 2 is fixed on the ground or wall near the pipe to be polished. The large motor 5 and the small motor 23 are electrically connected to the external terminal control device. The worm 17 is driven to rotate in the fixed seat 16 by turning the hand wheel, so that the worm 17 and the worm wheel 15 are meshed and transmitted. The worm wheel 15 drives the threaded rod 3 to rotate through the connection of the connecting shaft 14 and the coupling 13. The threaded sleeve on the threaded rod 3 is provided with a slider 4, so that the slider 4 is driven to slide on the slide 11, so that the position of the slider 4 is adjusted, and then the position of the grinding wheel 10 is adjusted, so that the grinding wheel 10 is convenient for grinding and rust removal of welds at different positions inside the pipe, which improves convenience. At the same time, the worm wheel 17 has self-locking properties after meshing with the worm 15, so that the grinding and rust removal process can be more stable, avoiding the problem of inaccurate grinding position caused by the sliding of the slider 4, and reducing the possibility of damage to the inside of the pipe by the grinding wheel 10. After the position of the part is reached, the large motor 5 drives the driving gear 19 fixedly connected to its output end to rotate, and the driving gear 19 meshes with the driven gear 20 for transmission, so that the driven gear 20 drives the rotating column 6 to rotate in the fixed shell 18, and the upper surface of the rotating column 6 is fixedly connected to the fixed shaft 7, so that the fixed shaft 7 drives one end of the connecting sleeve 8 to move, and the other end of the connecting sleeve 8 is connected to the fixed rod 22 through rotation, thereby driving the sliding rod 9 to move. Since the fixed shaft 7 is eccentrically arranged, the sliding rod 9 can slide back and forth in the supporting shell 21, so that the sliding rod 9 drives the small motor 23 fixedly installed at one end thereof to reciprocate, and then the small motor 23 drives the grinding wheel 10 to reciprocate inside the pipeline, and finally realizes that the small motor 23 drives the grinding wheel 10 to rotate and also makes the grinding wheel 10 reciprocate, so that the grinding wheel 10 can better perform comprehensive grinding around the weld, expand the grinding range, improve the grinding and rust removal effect, and improve the grinding and rust removal efficiency.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing rust from weld seams inside a pipeline, comprising a device body for removing rust from weld seams (1), characterized in that: The bottom of the weld rust removal device body (1) is provided with a mounting plate (2), the upper side of the mounting plate (2) is provided with a threaded rod (3), and the threaded rod (3) is sleeved with a slider (4); A large motor (5) is welded and fixed on the upper surface of the slider (4), a rotating column (6) is arranged on the upper side of the large motor (5), a fixed shaft (7) is fixedly connected to the upper surface of the rotating column (6), a connecting sleeve (8) is sleeved on the fixed shaft (7), a sliding rod (9) is arranged at one end of the connecting sleeve (8), and a grinding wheel (10) is arranged at one end of the sliding rod (9).

2. A device for removing rust from internal welds of a pipeline according to claim 1, characterized in that: The upper surface of the mounting plate (2) is fixedly connected to a slide table (11), a support seat (12) is fixedly installed on one side of the slide table (11), one end of the threaded rod (3) is rotatably sleeved on the side of the slide table (11), and the other end of the threaded rod (3) is fixedly connected to a connecting shaft (14) via a coupling (13).

3. A device for removing rust from internal welds of a pipeline according to claim 2, characterized in that: The connecting shaft (14) is rotatably sleeved in the supporting seat (12), the slider (4) is threadedly connected to the threaded rod (3), the bottom of the slider (4) is slidably connected to the slide table (11), and a worm gear (15) is fixedly sleeved on one end of the connecting shaft (14).

4. A pipeline internal weld rust removal device according to claim 3, characterized in that: Fixed seats (16) are arranged on both sides of the worm wheel (15), one side of the fixed seat (16) is fixedly connected to the side of the slide table (11), a worm (17) is meshed on the lower side of the worm wheel (15), and both ends of the worm (17) are rotatably sleeved in the fixed seat (16).

5. A device for removing rust from internal welds of a pipeline according to claim 4, characterized in that: The upper side of the large motor (5) is fixedly connected to a fixed shell (18), the output end of the large motor (5) is fixedly connected to a driving gear (19), and the driving gear (19) is rotatably sleeved in the fixed shell (18).

6. A device for removing rust from internal welds of a pipeline according to claim 5, characterized in that: The rotating column (6) is rotatably sleeved in the fixed shell (18), and a driven gear (20) is fixedly sleeved at the bottom of the rotating column (6), and the driven gear (20) is meshed with the driving gear (19) for transmission.

7. A device for removing rust from internal welds of a pipeline according to claim 6, characterized in that: One side of the fixed shell (18) is fixedly connected to a support shell (21), the support shell (21) is slidably connected to the slide bar (9), one end of the connecting sleeve (8) is fixedly sleeved on the fixed shaft (7), the other end of the connecting sleeve (8) is rotatably connected to one end of the slide bar (9) through a fixed rod (22), the other end of the slide bar (9) is welded and fixed with a small motor (23), and the grinding wheel (10) is fixedly sleeved on the output end of the small motor (23).

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