Device for removing rust in metal pipeline

Abstract

The utility model discloses a device for removing rust in a metal pipeline, which comprises a bottom support, a clamping device is fixedly arranged at two corresponding ends above the bottom support, a driving device is slidably arranged at the two corresponding ends above the bottom support, a transmission anchor cable is fixed on the driving device, and a supporting device is fixedly arranged at the other end of the transmission anchor cable. A brush head is fixedly arranged at the end, away from the transmission anchor cable, of the supporting device, a to-be-derusted pipeline is fixed to the clamping device, the other end of the pipeline faces the brush head, and the driving device moves forwards and backwards in the pipeline on the bottom support and drives the brush head to rotate at the same time. The shot blasting machine solves the problems that in the prior art, the shot blasting machine is manually operated to derust the inner wall of the pipeline, so that the labor loss is large, and the derusting of larger rust blocks is not thorough.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline rust removal devices and relates to a device for removing rust inside a metal pipeline. Background Art

[0002] It is very common to use steel pipes in underground mines. Steel pipes are used to transport fluids, exchange heat energy, manufacture mechanical parts and containers, and are also an economical steel material. Using steel pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight and save 20-40% of metal. Using steel pipes can not only save steel and simplify construction, but also greatly reduce the area of protective coating, saving investment and maintenance costs. In order to increase the service life of steel pipes, it is often necessary to treat the surface of the steel pipe. During the treatment process, the internal rust removal of the steel pipe is a very important and difficult process. In the prior art, the rust removal of the inner wall of the pipeline mostly relies on manually operated shot blasting machines, so that the pellets enter the interior of the pipeline and remove the rust on the inner wall of the pipeline. However, this method has the defects of large labor loss and incomplete rust removal of large rust blocks, which cannot meet the rust removal requirements of the inner wall of the pipeline. For this reason, we propose a device for rust removal inside metal pipelines to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a device for removing rust from the inside of a metal pipe, which solves the problem in the prior art that the rust on the inner wall of the pipe is removed by manually operating a shot blasting machine, resulting in large labor losses and incomplete rust removal of larger rust blocks.

[0004] The technical solution adopted by the utility model is a device for removing rust from the inside of a metal pipe, comprising a bottom bracket, two corresponding ends above the bottom bracket are respectively fixedly provided with a clamping device and a driving device slidably provided, a transmission anchor cable is fixed on the driving device, a supporting device is fixedly provided at the other end of the transmission anchor cable, a brush head is fixedly provided at one end of the supporting device away from the transmission anchor cable, a pipe to be removed rust is fixed on the clamping device, the other end of the pipe faces the brush head, and the driving device moves back and forth in the pipe on the bottom bracket while driving the brush head to rotate.

[0005] The utility model is also characterized in that:

[0006] Two cylindrical rails are horizontally and parallelly fixed on the bottom bracket, and the driving device is slidably fixed on the two cylindrical rails.

[0007] The driving device comprises a pneumatic anchor drilling rig, two sliding blocks are fixedly arranged at the bottom of the pneumatic anchor drilling rig, and the two sliding blocks are slidably arranged on two cylindrical rails respectively, and an output shaft one of the pneumatic anchor drilling rig is fixedly connected to a transmission anchor cable, and one end of a steel wire rope one is fixed below one end of a clamping device provided on a bottom bracket, and one end of a steel wire rope two is fixedly arranged at one end of the bottom bracket away from the clamping device, the other end of the steel wire rope one is fixed to the lower half of the output shaft two of the pneumatic anchor drilling rig, and the other end of the steel wire rope two is fixed to the upper half of the output shaft two, and the steel wire rope one and the steel wire rope two are separated by a baffle so as not to interfere with each other, the output shaft one of the pneumatic anchor drilling rig is horizontally arranged and faces the clamping device, and the output shaft two is vertically arranged, and the output shaft two realizes the steel wire rope one pulling the driving device forward by rotating counterclockwise, and realizes the steel wire rope two pulling the driving device backward by rotating clockwise, and when the driving device moves forward, the steel wire rope one is tightened and the steel wire rope two is unwound, and the opposite is true when moving backward.

[0008] A plurality of limiting rings are evenly arranged on the bottom bracket from the driving device to the end of the pipeline away from the clamping device. After the transmission anchor cable is fixed on the driving device, the other end passes through the plurality of limiting rings in sequence to connect with the brush head.

[0009] A fixing block is fixed below the limiting ring, and a clamping ring adapted to the cylindrical tracks is arranged at a position corresponding to the two cylindrical tracks below the fixing block, and the clamping ring is clamped on the cylindrical tracks.

[0010] The supporting device includes a connecting shaft, both ends of which are fixedly connected to a transmission anchor cable and a brush head respectively, a sleeve is sleeved on the connecting shaft, at least three groups of connecting ears are evenly arranged on the sleeve around its circumference, support rod 1 and support rod 2 are hinged on the connecting ears, rollers are rotatably arranged on the other ends of support rod 1 and support rod 2, and the middle parts of the sides of support rod 1 and support rod 2 that are close to each other are connected by spring 1.

[0011] A hexagonal sleeve is fixedly provided at one end of the transmission anchor cable connected to the supporting device, and a hexagonal column matching the hexagonal sleeve is provided at one end of the connecting shaft connected to the transmission anchor cable. The connecting shaft and the transmission anchor cable extend into the hexagonal sleeve through the hexagonal column and are then fixedly connected by a pin shaft.

[0012] The brush head includes a brush head sleeve fixed on a supporting device, a plurality of brush head slide rails are evenly arranged around the circumference of the brush head sleeve, a brush head slider is arranged on the brush head slide rail, a slide groove hole is opened at one end of the brush head slider close to the brush head slide rail, the brush head slide rail slides in the slide groove hole of the brush head slider, a spring 2 is arranged at the bottom of the slide groove hole of the brush head slider, the other end of the spring 2 is connected to the end of the brush head slide rail away from the brush head sleeve, the end of the brush head slider away from the brush head sleeve is arc-shaped, and a plurality of metal scrapers and metal brushes are evenly arranged on the arc-shaped surface.

[0013] The brush head sleeve is sleeved on one end of the supporting device away from the transmission anchor cable and is fixed by a pin shaft.

[0014] At one end of the cylindrical track close to the clamping device, a plurality of V-shaped sliders are also slidably arranged. One end of the pipeline is clamped by the clamping device, and the other end is placed on the plurality of V-shaped sliders.

[0015] The clamping device is a triangular chuck, and the triangular chuck is fixedly arranged on the bottom bracket.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The brush head of the present utility model is driven by a driving device to achieve telescoping, and the brush head itself can telescopically adapt to the inner diameter of the pipeline automatically, without the need for frequent adjustment, reducing the workload of the staff, further improving work efficiency, and can freely enter the interior of the pipeline, making it very convenient to use and meeting the requirements of automated production.

[0018] The brush head of the present utility model uses a combination of metal scraping blades and metal brushes for rust removal. After the larger obstacles are removed by the metal scraping blades, the metal brushes immediately perform secondary cleaning, achieving more thorough rust removal, obvious rust removal effect, and improving the rust removal efficiency of the equipment. For pipelines with larger rust blocks, the metal brushes have greater flexibility and cannot remove them in one go. The metal scraping blades first remove the large rust blocks, and then the metal brushes perform secondary treatment, achieving more thorough rust removal.

[0019] The present utility model can adapt to rust removal pipelines of different lengths according to transmission anchor cables of different lengths, and the clamping device uses a triangular chuck, which can clamp pipelines of different calibers, achieving wide application. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the device for rust removal inside a metal pipeline of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the bottom bracket in the device for rust removal inside a metal pipeline of the present utility model;

[0022] Figure 3 is a schematic structural diagram of the driving device in the device for rust removal inside a metal pipeline of the present utility model;

[0023] Figure 4 is a schematic structural diagram of the transmission anchor cable in the device for rust removal inside a metal pipeline of the present utility model;

[0024] Figure 5 is a schematic structural diagram of the sliding limiting ring in the device for rust removal inside a metal pipeline of the present utility model;

[0025] Figure 6 is a schematic structural diagram of the support device in the device for rust removal inside a metal pipeline of the present utility model;

[0026] Figure 7It is a structural schematic diagram of a brush head in a device for removing rust from the inside of a metal pipe according to the utility model;

[0027] Figure 8 The utility model is a schematic diagram of the internal structure of a brush head in a device for removing rust inside a metal pipe.

[0028] In the figure: 1. bottom bracket, 11. cylindrical track, 2. driving device, 21. pneumatic anchor drill, 22. sliding block, 23. output shaft 1, 24. output shaft 2, 25. wire rope 1, 26. wire rope 2, 3. transmission anchor cable, 4. limiting ring, 41. fixing block, 42. snap ring, 5. supporting device, 51. connecting shaft, 52. sleeve, 53. support rod 1, 54. support rod 2, 55. spring 1, 56. roller, 57. connecting ear, 6. brush head, 61. brush head sleeve, 62. brush head slide rail, 63. brush head slider, 64. metal scraper, 65. metal brush, 66. spring 2, 7. pipeline, 8. V-shaped slider, 9. clamping device. DETAILED DESCRIPTION

[0029] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0030] Example 1

[0031] The utility model is a device for removing rust from the inside of a metal pipeline, such as Figure 1 As shown, it includes a bottom bracket 1, and the corresponding two ends above the bottom bracket 1 are respectively fixedly provided with a clamping device 9 and a driving device 2 that is slidably provided, a transmission anchor cable 3 is fixed on the driving device 2, and a supporting device 5 is fixedly provided at the other end of the transmission anchor cable 3, and a brush head 6 is fixedly provided at the end of the supporting device 5 away from the transmission anchor cable 3, a pipe 7 to be derusted is fixed on the clamping device 9, and the other end of the pipe 7 faces the brush head 6, and the driving device 2 moves back and forth on the bottom bracket 1 toward the pipe 7 and drives the brush head 6 to rotate at the same time.

[0032] like Figure 2 As shown, two cylindrical rails 11 are fixed horizontally and in parallel on the bottom bracket 1, and the driving device 2 is slidably fixed on the two cylindrical rails 11.

[0033] like Figure 3 As shown, the driving device 2 includes a pneumatic anchor drill 21, and two sliding blocks 22 are fixedly arranged below the pneumatic anchor drill 21. The two sliding blocks 22 are respectively slidably arranged on two cylindrical rails 11, as shown in FIG. Figure 4As shown, the output shaft 1 23 of the pneumatic anchor drill 21 is fixedly connected to the transmission anchor cable 3, one end of the steel wire rope 1 25 is fixed below one end of the bottom bracket 1 provided with the clamping device 9, one end of the steel wire rope 26 is fixed at one end of the bottom bracket 1 away from the clamping device 9, the other end of the steel wire rope 1 25 is fixed to the lower half of the output shaft 24 of the pneumatic anchor drill 21, and the other end of the steel wire rope 26 is fixed to the upper half of the output shaft 24 of the pneumatic anchor drill 21. The steel wire rope 1 25 and the steel wire rope 2 26 are separated by a baffle and do not interfere with each other. The output shaft 1 23 of the pneumatic anchor drill 21 is horizontally arranged and faces the clamping device, and the output shaft 2 24 is vertically arranged. The output shaft 2 24 rotates counterclockwise to enable the steel wire rope 1 25 to pull the driving device 2 forward, and rotates clockwise to enable the steel wire rope 2 26 to pull the driving device 2 backward. When the driving device 2 moves forward, the steel wire rope 1 25 is tightened and the steel wire rope 2 26 is unwound, and the opposite is true when moving backward.

[0034] The pneumatic anchor drill adopted in the utility model has a drilling machine part with a horizontal rotating shaft for drilling and a vertical rotating shaft for driving horizontal advancement.

[0035] The working principle of this embodiment is:

[0036] The pneumatic anchor drill 21 in the driving device 2 is set on the cylindrical track 11. The output shaft 23 of the pneumatic anchor drill 21 is connected to the transmission anchor cable 3 through a pin shaft for rotation, thereby driving the brush head 6 to rotate and remove rust. The output shaft 24 of the pneumatic anchor drill 21 rotates counterclockwise and wraps around the wire rope 25 to pull the pneumatic anchor drill 21 as a whole on the cylindrical track 11 toward the pipeline 7. The output shaft 24 rotates clockwise and wraps around the wire rope 26 to pull the pneumatic anchor drill 21 as a whole away from the direction of the pipeline 7 to retreat.

[0037] Example 2

[0038] On the basis of Example 1, a plurality of limiting rings 4 are evenly arranged on the bottom bracket 1 from the driving device 2 to the end of the pipe 7 away from the clamping device 9. After the transmission anchor cable 3 is fixed on the driving device 2, the other end passes through the plurality of limiting rings 4 in sequence to connect to the brush head 6. The limiting ring 4 is used to limit the transmission anchor cable 3. A fixing block 41 is fixed below the limiting ring 4. A clamping ring 42 adapted to the cylindrical track 11 is arranged at the position corresponding to the two cylindrical tracks 11 below the fixing block 41. The clamping ring 42 is clamped on the cylindrical track 11.

[0039] like Figure 5 As shown, on the basis of Example 1, different lengths of rust removal pipes can be adapted according to different lengths of transmission anchor cables, and the sliding limiting ring 4 is used to prevent the transmission anchor cable from leaving the track.

[0040] Example 3

[0041] On the basis of Embodiment 1 or Embodiment 2, the supporting device 5 includes a connecting shaft 51. The two ends of the connecting shaft 51 are respectively fixedly connected to the driving cable 3 and the brush head 6. A sleeve 52 is sleeved on the connecting shaft 51. At least three groups of connecting ears 57 are evenly arranged on the circumference of the sleeve 52. A first support rod 53 and a second support rod 54 are hinged on the connecting ears 57. The other ends of the first support rod 53 and the second support rod 54 are rotatably provided with rollers 56. The middle parts of the sides of the first support rod 53 and the second support rod 54 close to each other are connected by a first spring 55.

[0042] As Figure 4 shown, a hexagonal sleeve is fixedly arranged at one end of the driving cable 3 connected to the supporting device 5. One end of the connecting shaft 51 connected to the driving cable 3 is arranged as a hexagonal cylinder that matches the hexagonal sleeve. After the connecting shaft 51 and the driving cable 3 pass through the hexagonal cylinder and extend into the hexagonal sleeve, they are fixedly connected by a pin shaft.

[0043] As Figure 6 shown, when the supporting device is located in the pipeline 7, the two first support rods 53 and the second support rods 54 are respectively oriented towards the two ends inside the pipeline 7. And the supporting device can automatically adapt to the inner diameter of the pipeline 7 through the spring according to the inner diameter of the pipeline 7, without frequent adjustment, reducing the workload of the staff and further improving the work efficiency.

[0044] Embodiment 4

[0045] On the basis of Embodiment 3, as Figures 7 - 8 shown, the brush head 6 includes a brush head sleeve 61 fixed on the supporting device 5. A plurality of brush head slide rails 62 are evenly arranged on the circumference of the brush head sleeve 61. A brush head slider 63 is arranged on the brush head slide rails 62. A chute hole is opened at one end of the brush head slider 63 close to the brush head slide rail 62. The brush head slide rail 62 slides in the chute hole of the brush head slider 63. A second spring 66 is arranged at the bottom of the chute hole of the brush head slider 63. The other end of the second spring 66 is connected to the end of the brush head slide rail 62 away from the brush head sleeve 61. The end of the brush head slider 63 away from the brush head sleeve 61 is arc-shaped and a plurality of metal scraping pieces 64 and metal brushes 65 are evenly arranged on the arc-shaped surface. The metal scraping pieces 64 are arranged on the arc-shaped surface of the brush head slider located on the side where the brush head 6 advances towards the inside of the pipeline 7, and the metal brushes 65 are arranged on the arc-shaped surface of the brush head slider located on the side where the brush head 6 exits towards the outside of the pipeline 7.

[0046] The brush head sleeve 61 is sleeved on the end of the connecting shaft 51 of the supporting device 5 away from the driving cable 3 and is fixed by a pin shaft.

[0047] One end of the second spring 66 is fixed on the brush head slide rail 62, and the other end is fixedly arranged inside the brush head slider 63. The second spring 66 is in an extended state when at rest and in a compressed state during operation. The brush head 6 can automatically adapt to the inner diameter of the pipeline through the brush head slider 63, the brush head slider 63 and the second spring 66, without the need for frequent adjustment, reducing the workload of the staff and further improving work efficiency. The rust removal of the brush head combines a metal scraping piece and a metal brush. After the larger obstacles are removed by the metal scraping piece, the metal brush immediately performs secondary cleaning to achieve more thorough rust removal. The rust removal of the brush head combines a metal scraping piece and a metal brush. After the larger obstacles are removed by the metal scraping piece, the metal brush immediately performs secondary cleaning to achieve more thorough rust removal.

[0048] Embodiment 5

[0049] On the basis of Embodiment 1, a plurality of V-shaped sliders 8 are also slidably arranged at one end of the cylindrical track 11 close to the clamping device 9. One end of the pipeline 7 is clamped by the clamping device 9, and the other end is placed on the plurality of V-shaped sliders 8; a chute adapted to the cylindrical track 11 is arranged at the bottom of the V-shaped slider 8.

[0050] The clamping device 9 is a three-jaw chuck, and the three-jaw chuck is fixedly arranged on the bottom bracket 1.

[0051] Embodiment 6

[0052] On the basis of Embodiment 1, the baffle is fixed at the middle position of the output shaft two 24, and the first steel wire rope 25 and the second steel wire rope 26 are in a horizontal state when tightened.

Claims

1. A device for removing rust inside a metal pipe, characterized in that, The invention comprises a bottom bracket (1), wherein two corresponding ends above the bottom bracket (1) are respectively fixedly provided with a clamping device (9) and a driving device (2) which is slidably provided, a transmission anchor cable (3) being fixed on the driving device (2), a supporting device (5) being fixedly provided on the other end of the transmission anchor cable (3), a brush head (6) being fixedly provided on one end of the supporting device (5) which is away from the transmission anchor cable (3), a pipe (7) to be derusted being fixed on the clamping device (9), the other end of the pipe (7) facing the brush head (6), and the driving device (2) moving forward and backward into the pipe (7) on the bottom bracket (1) while driving the brush head (6) to rotate.

2. The device for rust removal inside a metal pipeline according to claim 1, wherein Two cylindrical rails (11) are fixed horizontally and in parallel on the bottom bracket (1), and the driving device (2) is slidably fixed on the two cylindrical rails (11).

3. The device for internal rust removal of metal pipelines according to claim 2, characterized in that, The driving device (2) comprises a pneumatic anchor drill (21), two sliding blocks (22) are fixedly arranged below the pneumatic anchor drill (21), and the two sliding blocks (22) are respectively slidably arranged on two cylindrical rails (11), and an output shaft 1 (23) of the pneumatic anchor drill (21) is fixedly connected to a transmission anchor cable (3), one end of a steel wire rope 1 (25) is fixedly arranged below one end of a clamping device (9) of the bottom bracket (1), one end of a steel wire rope 2 (26) is fixedly arranged at one end of the bottom bracket (1) away from the clamping device (9), and the other end of the steel wire rope 1 (25) is fixedly arranged at the lower half of the output shaft 2 (24), and the steel wire rope 2 (26) is fixedly arranged at the lower half of the output shaft 2 (24). The other end of the steel wire rope 26 is fixed to the upper part of the output shaft 2 (24) of the pneumatic anchor drill (21), and the steel wire rope 1 (25) and the steel wire rope 2 (26) are separated by a baffle plate so as not to interfere with each other. The output shaft 1 (23) of the pneumatic anchor drill (21) is horizontally arranged and faces the clamping device (9), and the output shaft 2 (24) is vertically arranged. The output shaft 2 (24) rotates counterclockwise to realize that the steel wire rope 1 (25) pulls the driving device (2) forward, and rotates clockwise to realize that the steel wire rope 2 (26) pulls the driving device (2) backward. When the driving device (2) moves forward, the steel wire rope 1 (25) is wound tightly and the steel wire rope 2 (26) is wound loosely, and the opposite is true when moving backward.

4. The device for internal rust removal of metal pipelines according to claim 2, characterized in that, A plurality of limiting rings (4) are evenly arranged on the bottom bracket (1) from the driving device (2) to the end of the pipeline (7) away from the clamping device (9); after the transmission anchor cable (3) is fixed on the driving device (2), the other end passes through the plurality of limiting rings (4) in sequence to connect to the brush head (6).

5. The device for internal rust removal of metal pipes according to claim 3, characterized in that, A fixing block (41) is fixed below the limiting ring (4), and a clamping ring (42) adapted to the cylindrical rails (11) is arranged below the fixing block (41) at positions corresponding to the two cylindrical rails (11), and the clamping ring (42) is clamped on the cylindrical rails (11).

6. The device for internal rust removal of metal pipelines according to claim 1, wherein, The supporting device (5) comprises a connecting shaft (51), the two ends of which are respectively fixedly connected to the transmission anchor cable (3) and the brush head (6), a sleeve (52) is sleeved on the connecting shaft (51), at least three groups of connecting ears (57) are evenly arranged on the sleeve (52) around its circumference, a supporting rod 1 (53) and a supporting rod 2 (54) are hinged on the connecting ears (57), the other ends of the supporting rod 1 (53) and the supporting rod 2 (54) are rotatably provided with rollers (56), and the middle parts of the sides of the supporting rod 1 (53) and the supporting rod 2 (54) that are close to each other are connected by a spring 1 (55).

7. The device for removing rust inside a metal pipe according to claim 6, wherein, One end of the transmission anchor cable (3) connected to the support device (5) is fixedly provided with a hexagonal sleeve, and one end of the connecting shaft (51) connected to the transmission anchor cable (3) is provided with a hexagonal column that matches the hexagonal sleeve. The connecting shaft (51) and the transmission anchor cable (3) extend into the hexagonal sleeve through the hexagonal column and are then fixedly connected by a pin shaft.

8. The device for internal rust removal of metal pipelines according to claim 1, wherein, The brush head (6) comprises a brush head sleeve (61) fixed on the supporting device (5), a plurality of brush head slide rails (62) are evenly arranged around the circumference of the brush head sleeve (61), a brush head slider (63) is arranged on the brush head slide rail (62), a slide groove hole is opened at one end of the brush head slider (63) close to the brush head slide rail (62), the brush head slide rail (62) slides in the slide groove hole of the brush head slider (63), a spring 2 (66) is arranged at the bottom of the slide groove hole of the brush head slider (63), and the spring 2 (66) The other end is connected to an end of the brush head slide rail (62) away from the brush head sleeve (61); the end of the brush head slider (63) away from the brush head sleeve (61) is in an arc shape, and a plurality of metal scrapers (64) and metal brushes (65) are evenly arranged on the arc surface; the metal scraper (64) is arranged on the arc surface of the brush head slider (63) on the side where the brush head (6) moves into the pipe (7); and the metal brush (65) is arranged on the arc surface of the brush head slider (63) on the side where the brush head (6) moves out of the pipe (7).

9. The device for rust removal inside a metal pipeline according to claim 6, characterized in that, The brush head sleeve (61) is sleeved on one end of the support device (5) away from the transmission anchor cable (3) and is fixed by a pin shaft.

10. The device for internal rust removal of metal pipes according to claim 2, characterized in that, A plurality of V-shaped slide blocks (8) are slidably arranged at one end of the cylindrical track (11) close to the clamping device (9); one end of the pipe (7) is clamped on the clamping device (9) and the other end is placed on the plurality of V-shaped slide blocks (8); The clamping device (9) is a triangular chuck, which is fixedly arranged on the bottom bracket (1).

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