Pipeline sand blasting device

Abstract

The utility model relates to a pipeline sand blasting device and belongs to the technical field of pipeline treatment, the pipeline sand blasting device comprises a rack, a sand blasting machine body, a lantern ring, a sand blasting gun and a driving mechanism, the sand blasting machine body is arranged on the rack and used for driving abrasive materials to be sprayed out of the sand blasting gun, and the lantern ring is arranged on the rack and used for being arranged on a petroleum pipeline in a sleeving mode; the sand blasting gun is arranged on the lantern ring in a circumferential sliding mode and communicates with the sand blasting machine body. The driving mechanism is arranged on the sand blasting gun and used for driving the sand blasting gun to slide on the lantern ring. A worker drives abrasive materials to be sprayed out of the sand blasting gun through the sand blasting machine body, the abrasive materials sprayed out of the sand blasting gun can conduct sand blasting on the petroleum pipeline, meanwhile, the driving mechanism drives the sand blasting gun to circumferentially slide on the lantern ring, circumferential sand blasting can be conducted on the petroleum pipeline, the worker does not need to hold the sand blasting gun by hand to conduct sand blasting treatment on the petroleum pipeline, and the working efficiency is improved. And the labor intensity of workers during sand blasting treatment on the petroleum pipeline is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of pipeline processing technology, and in particular to a pipeline sandblasting device. Background Art

[0002] A large number of pipelines are required in the process of crude oil extraction and transportation. The surface of ordinary pipelines is prone to rust. In order to improve the cleanliness of the pipeline surface, the pipeline needs to be sandblasted.

[0003] At present, sandblasting machines are usually used to sandblast pipes. Sandblasting machines use compressed air as power to spray abrasives such as shot peening, steel sand, and iron sand at high speed onto the surface of the pipe that needs to be treated. Due to the impact and cutting action of the abrasive, the mechanical properties of the pipe surface are improved, the fatigue resistance is improved, and the adhesion between the pipe surface and the coating is increased.

[0004] When sandblasting a pipeline, a worker needs to hold a sandblasting gun and drive the sandblasting gun to move circumferentially around the pipeline so that the abrasive sprayed by the sandblasting gun can circumferentially treat the pipeline surface. However, in the process of compressed air transporting the abrasive to the sandblasting gun, the compressed air will cause the sandblasting gun to shake, and the sandblasting gun will then act on the worker's hand, causing the worker to hold the sandblasting gun tightly for a long time to ensure the accuracy of the sandblasting, which makes the labor intensity of the worker holding the sandblasting gun to sandblast the oil pipeline high. Utility Model Content

[0005] In order to reduce the labor intensity of workers when performing sandblasting on oil pipelines, the present application provides a pipeline sandblasting device.

[0006] The pipe sandblasting device provided in this application adopts the following technical solution:

[0007] A pipeline sandblasting device comprises a frame, a sandblasting machine body, a collar, a sandblasting gun and a driving mechanism, wherein the sandblasting machine body is arranged on the frame and is used to drive abrasive to be ejected from the sandblasting gun, the collar is arranged on the frame and is used to be sleeved on an oil pipeline; the sandblasting gun is circumferentially slidably arranged on the collar, and the sandblasting gun is connected to the sandblasting machine body; the driving mechanism is arranged on the sandblasting gun and is used to drive the sandblasting gun to slide on the collar.

[0008] By adopting the above technical solution, the staff moves the frame to the oil pipeline to be sandblasted, puts the ring on the oil pipeline, and then drives the abrasive to be sprayed out from the sandblasting gun through the sandblasting machine body. The abrasive sprayed from the sandblasting gun can sandblast the oil pipeline. At the same time, the sandblasting gun is driven by the driving mechanism to slide circumferentially on the ring, so that the oil pipeline can be sandblasted circumferentially. There is no need for the staff to hold the sandblasting gun to sandblast the oil pipeline, which effectively reduces the labor intensity of the staff when sandblasting the oil pipeline.

[0009] Optionally, a lifting mechanism for driving the collar to be lifted and lowered is provided on the frame, and the lifting mechanism includes a lifting seat, a screw and a rotating assembly. The lifting seat is slidably arranged on the frame in a vertical direction, the collar is arranged on the lifting seat, the screw is rotatably arranged on the frame, the screw is threadedly connected to the lifting seat, and the rotating assembly is arranged on the frame and is used to drive the screw to rotate.

[0010] By adopting the above technical solution, after the staff moves the frame to the oil pipeline, they drive the screw to rotate through the rotating assembly, so that the screw drives the lifting seat to move downward, and then move the ring to the bottom of the oil pipeline, and then drive the screw to rotate through the rotating assembly, so that the screw drives the lifting seat to drive the ring to move upward, so that the ring is mounted on the oil pipeline, thereby improving the applicability of the ring to pipelines of different heights.

[0011] Optionally, the rotating assembly includes a rotating motor, a driving bevel gear and a driven bevel gear, the rotating motor is arranged on a frame, the driving bevel gear is coaxially arranged on an output shaft of the rotating motor, the driven bevel gear is coaxially arranged on a screw, and the driven bevel gear is meshed with the driving bevel gear.

[0012] By adopting the above technical solution, the staff starts the rotating motor, the rotating motor drives the active bevel gear to rotate, the active bevel gear drives the driven bevel gear to rotate, and the driven bevel gear can drive the screw to rotate, effectively improving the convenience of the staff to drive the screw to rotate.

[0013] Optionally, the sleeve ring includes a left half ring, a right half ring and a locking assembly, the left half ring is hinged on the lifting seat, the right half ring is hinged on the left half ring, the sandblasting gun is slidably arranged on the left half ring and the right half ring respectively, and the locking assembly is arranged on the left half ring and is used to position the right half ring on the left half ring.

[0014] By adopting the above technical solution, the staff rotates the left half ring and the right half ring so that the left half ring and the right half ring are buckled together from both sides of the oil pipeline, and then positions the right half ring on the left half ring through the locking assembly, so that the ring can be easily and quickly put on the oil pipeline.

[0015] Optionally, the locking assembly includes a locking bolt and a locking nut, the locking bolt is hinged on the left half ring, the locking nut is threadedly arranged on the locking bolt, and the right half ring is provided with a locking groove for the locking bolt to be inserted into.

[0016] By adopting the above technical solution, the staff turns the locking bolt so that the locking bolt is stuck in the locking groove, and then turns the locking nut so that the locking nut is tightened against the right half ring, so that the right half ring can be positioned on the left half ring, thereby improving the convenience for the staff to position the right half ring on the left half ring.

[0017] Optionally, the driving mechanism includes a rack, a gear and a driving motor, wherein the rack is respectively provided on the left half ring and the right half ring, the gear is rotatably provided on the sandblasting gun, the gear is meshed with the rack, the driving motor is provided on the sandblasting gun, and the output shaft of the driving motor is coaxially connected with the gear.

[0018] By adopting the above technical solution, the staff starts the drive motor, the drive motor drives the gear to rotate, and the gear and the rack are engaged, so that the sandblasting gun can slide circumferentially on the left half ring and the right half ring, and then circumferentially sandblast the oil pipeline, thereby improving the convenience of the staff in circumferentially sandblasting the oil pipeline.

[0019] Optionally, a first protective cover is provided on the left half ring, and a second protective cover is provided on the right half ring.

[0020] By adopting the above technical solution, the first protective cover sets the left half ring cover inside, and the second protective cover sets the right half ring cover inside, so as to prevent the abrasive and waste chips on the oil pipeline from splashing around when the sandblasting gun sandblasts the oil pipeline.

[0021] Optionally, both the first protective cover and the second protective cover are provided with sealing strips for pressing against the oil pipeline.

[0022] By adopting the above technical solution, the sealing strip on the first protective cover seals the gap between the first protective cover and the oil pipeline, and the sealing strip on the second protective cover seals the gap between the second protective cover and the oil pipeline, thereby enhancing the sealing between the first protective cover and the oil pipeline and between the second protective cover and the oil pipeline.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The driving mechanism drives the sandblasting gun to slide circumferentially on the collar, so that the oil pipeline can be sandblasted circumferentially. The staff does not need to hold the sandblasting gun to sandblast the oil pipeline, which effectively reduces the labor intensity of the staff when sandblasting the oil pipeline;

[0025] 2. The screw drives the lifting seat to move the sleeve upward, so that the sleeve is sleeved on the oil pipeline, improving the applicability of the sleeve to pipelines of different heights;

[0026] 3. The staff rotates the left half ring and the right half ring so that the left half ring and the right half ring are buckled together from both sides of the oil pipeline, and then positions the right half ring on the left half ring through the locking assembly, so that the sleeve ring can be quickly and easily put on the oil pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a pipeline sandblasting device according to an embodiment of the present application.

[0028] Figure 2 It is a partial structural schematic diagram of an embodiment of the present application (the left half ring and the second protective cover are partially cut away in the figure).

[0029] Figure numerals: 1. frame; 2. sandblasting machine body; 3. collar; 31. left half ring; 32. right half ring; 321. locking groove; 33. locking assembly; 331. locking bolt; 332. locking nut; 4. sandblasting gun; 5. driving mechanism; 51. rack; 52. gear; 53. driving motor; 6. lifting mechanism; 61. lifting seat; 62. screw; 63. rotating assembly; 631. rotating motor; 632. driving bevel gear; 633. driven bevel gear; 7. first protective cover; 8. second protective cover; 9. sealing strip; 10. slider. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The embodiment of the present application discloses a pipeline sandblasting device.

[0032] Reference Figure 1 , Figure 2 The pipeline sandblasting device includes a frame 1, a sandblasting machine body 2, a collar 3, a sandblasting gun 4, a driving mechanism 5 and a lifting mechanism 6.

[0033] Reference Figure 1 The sandblasting machine body 2 is installed on the frame 1, and the sandblasting gun 4 is installed on the sandblasting machine body 2 through a soft sand conveying pipe. The sandblasting machine body 2 is used to drive the abrasive to be ejected from the sandblasting machine. In this embodiment, the sandblasting machine body 2 is a suction dry sandblasting machine, including a compressed air system, an abrasive supply system, a control system, etc. The compressed air system provides a high-pressure airflow to form a negative pressure in the sandblasting gun 4, and the abrasive of the abrasive supply system is sucked into the sandblasting gun 4 through the sand conveying pipe and ejected from the sandblasting gun 4; and in this embodiment, a plurality of universal wheels are installed at the bottom of the frame 1, and a handle is installed on the frame 1, so that the staff can hold the handle and push the frame 1 to move.

[0034] Reference Figure 1 , Figure 2 The lifting mechanism 6 is installed on the frame 1. The lifting mechanism 6 is used to drive the collar 3 to lift on the frame 1. The lifting mechanism 6 includes a lifting seat 61, a screw 62 and a rotating assembly 63. In this embodiment, a plurality of guide rods are vertically installed on the frame 1. The lifting seat 61 is slidably installed on the plurality of guide rods along the vertical direction. The collar 3 is installed on the lifting seat 61. The collar 3 is used to be sleeved on the oil pipeline. The guide rod guides the movement of the lifting seat 61 to improve the stability of the lifting seat 61 when it is lifted; the screw 62 is rotatably installed on the frame 1. The screw 62 is threadedly penetrated on the lifting seat 61, and the rotating assembly 63 is installed on the frame 1. The rotating assembly 63 is used to drive the screw 62 to rotate. The rotating assembly 63 includes a rotating motor 631, an active bevel gear 632 and a driven bevel gear 633. The rotating motor 631 is installed on the frame 1. In this embodiment, the rotating motor 631 is a servo motor, the active bevel gear 632 is coaxially installed on the output shaft of the rotating motor 631, and the driven bevel gear 633 is coaxially installed on the screw 62, and the driven bevel gear 633 is meshed with the active bevel gear 632.

[0035] When the staff pushes the frame 1 to the oil pipeline, the rotating motor 631 is first started, and the rotating motor 631 drives the active bevel gear 632 to rotate, and the active bevel gear 632 drives the driven bevel gear 633 to rotate, and the driven bevel gear 633 drives the screw 62 to rotate, so that the lifting seat 61 first drives the collar 3 to descend to the bottom of the oil pipeline, and then the staff pushes the frame 1 to make the collar 3 align with the bottom of the oil pipeline, and then starts the rotating motor 631, and the rotating motor 631 drives the screw 62 to rotate, so that the lifting seat 61 drives the collar 3 to rise to the height of the oil pipeline, and by driving the lifting seat 61 to drive the collar 3 to rise to different heights, the applicability of the collar 3 to pipelines of different heights is effectively improved.

[0036] Reference Figure 1 , Figure 2 The collar 3 includes a left half ring 31, a right half ring 32 and a locking assembly 33. The left half ring 31 is hingedly mounted on the lifting seat 61, and the right half ring 32 is hingedly mounted on the left half ring 31; the locking assembly 33 is mounted on the left half ring 31, and the locking assembly 33 is used to position the right half ring 32 on the left half ring 31. The locking assembly 33 includes a locking bolt 331 and a locking nut 332. The locking bolt 331 is hingedly mounted on the left half ring 31, and the locking nut 332 is threadedly mounted on the locking bolt 331. A locking groove 321 is provided on the right half ring 32, and the locking groove 321 is used for the locking bolt 331 to be clamped.

[0037] After the staff drives the left half ring 31 and the right half ring 32 to move to the bottom of the oil pipeline, the staff rotates the left half ring 31 and the right half ring 32 so that the left half ring 31 and the right half ring 32 are close to each other, and the left half ring 31 and the right half ring 32 can be buckled onto the oil pipeline from both sides of the pipeline, and then the staff rotates the locking bolt 331 to make the locking screw 62 rotate to abut against the bottom wall of the locking groove 321, and then screws the locking nut 332 onto the locking bolt 331, and makes the implementation nut abut against the right half ring 32, so that the left half ring 31 and the right half ring 32 can be locked, so that the right half ring 32 is positioned on the left half ring 31, which effectively improves the convenience of the staff in putting the ring 3 on the oil pipeline.

[0038] Reference Figure 1 , Figure 2 The sandblasting gun 4 is slidably mounted on the left half ring 31 and the right half ring 32, respectively. In this embodiment, a slide groove with a T-shaped cross section is circumferentially opened on the inner side walls of the left half ring 31 and the right half ring 32, and a slider 10 is slidably mounted in the slide groove. The sandblasting gun 4 is mounted on the slider 10, thereby realizing the circumferential sliding of the sandblasting gun 4 on the left half ring 31 and the right half ring 32, and the side wall of the slide groove guides the sliding of the sandblasting gun 4, thereby improving the sliding stability of the sandblasting gun 4; the driving mechanism 5 is mounted on On the sandblasting gun 4, the driving mechanism 5 is used to drive the sandblasting gun 4 to slide circumferentially on the inner wall of the left half ring 31 or the right half ring 32. The driving mechanism 5 includes a rack 51, a gear 52 and a driving motor 53. A rack 51 is installed on the bottom wall of the slide groove of the left half ring 31 and the right half ring 32. The driving motor 53 is installed on the slider 10, and the gear 52 is rotatably installed on the slider 10. The gear 52 is coaxially connected to the output shaft of the driving motor 53, and the gear 52 is meshed with the rack 51.

[0039] The staff starts the driving motor 53, and the driving motor 53 drives the gear 52 to rotate. The gear 52 is meshed with the rack 51, so that the slide seat drives the sandblasting gun 4 to slide on the left half ring 31 or the right half ring 32. The sandblasting gun 4 on the left half ring 31 and the sandblasting gun 4 on the right half ring 32 can perform circumferential sandblasting on the side wall of the oil pipeline during the sliding process, which effectively improves the convenience of the staff in performing circumferential sandblasting on the oil pipeline.

[0040] Reference Figure 1 , Figure 2 A first protective cover 7 is installed on the left half ring 31, and the first protective cover 7 covers the left half ring 31 inside. A second protective cover 8 is installed on the right half ring 32, and the second protective cover 8 covers the right half ring 32 inside. When the left half ring 31 is buckled onto the right half ring 32, the first protective cover 7 is buckled with the second protective cover 8. Sealing strips 9 are installed on both the first protective cover 7 and the second protective cover 8, and the sealing strips 9 abut against the oil pipeline.

[0041] When the staff drives the left half ring 31 and the right half ring 32 to buckle together and put them on the oil pipeline, the first protective cover 7 and the second protective cover 8 cover the left half ring 31 and the right half ring 32 inside, and at the same time the sealing strip 9 seals the gap between the first protective cover 7 and the oil pipeline, and the gap between the second protective cover 8 and the oil pipeline, effectively improving the sealing between the first protective cover 7 and the oil pipeline, and between the second protective cover 8 and the oil pipeline, thereby preventing the abrasive ejected by the sandblasting gun 4 when sandblasting the oil pipeline and the waste chips ejected from the oil pipeline from splashing outward.

[0042] The implementation principle of a pipeline sandblasting device in an embodiment of the present application is as follows: the staff pushes the frame 1 to the bottom of the oil pipeline to be sandblasted, and then drives the ring 3 to rise to the bottom of the oil pipeline through the lifting mechanism 6, rotates the left half ring 31 and the right half ring 32 so that the left half ring 31 and the right half ring 32 are buckled onto the oil pipeline, and the left half ring 31 and the right half ring 32 are locked by the locking bolt 331 and the locking nut 332, and then drives the abrasive to be sprayed out from the sandblasting gun 4 through the sandblasting machine body 2, and at the same time starts the driving motor 53, so that the sandblasting gun 4 on the left half ring 31 slides circumferentially on the left half ring 31, and the sandblasting gun 4 on the right half ring 32 slides circumferentially on the right half ring 32, so that the oil pipeline can be sprayed circumferentially, and the staff does not need to hold the sandblasting gun 4 to sandblast the oil pipeline, which effectively reduces the labor intensity of the staff when sandblasting the oil pipeline.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipe sandblasting device, characterized in that: The invention comprises a frame (1), a sandblasting machine body (2), a collar (3), a sandblasting gun (4) and a driving mechanism (5); the sandblasting machine body (2) is arranged on the frame (1) and is used to drive abrasive to be ejected from the sandblasting gun (4); the collar (3) is arranged on the frame (1) and is used to be sleeved on an oil pipeline; the sandblasting gun (4) is circumferentially slidably arranged on the collar (3); the sandblasting gun (4) is connected to the sandblasting machine body (2); and the driving mechanism (5) is arranged on the sandblasting gun (4) and is used to drive the sandblasting gun (4) to slide on the collar (3).

2. A pipe sandblasting device according to claim 1, characterized in that: The frame (1) is provided with a lifting mechanism (6) for driving the collar (3) to be lifted or lowered. The lifting mechanism (6) comprises a lifting seat (61), a screw rod (62) and a rotating assembly (63). The lifting seat (61) is slidably arranged on the frame (1) along a vertical direction. The collar (3) is arranged on the lifting seat (61). The screw rod (62) is rotatably arranged on the frame (1). The screw rod (62) is threadedly connected to the lifting seat (61). The rotating assembly (63) is arranged on the frame (1) and is used to drive the screw rod (62) to rotate.

3. A pipe sandblasting device according to claim 2, characterized in that: The rotating assembly (63) comprises a rotating motor (631), a driving bevel gear (632) and a driven bevel gear (633); the rotating motor (631) is arranged on the frame (1); the driving bevel gear (632) is coaxially arranged on the output shaft of the rotating motor (631); the driven bevel gear (633) is coaxially arranged on the screw (62); and the driven bevel gear (633) meshes with the driving bevel gear (632).

4. A pipeline sandblasting device according to claim 2, characterized in that: The collar (3) comprises a left half ring (31), a right half ring (32) and a locking assembly (33); the left half ring (31) is hingedly arranged on a lifting seat (61); the right half ring (32) is hingedly arranged on the left half ring (31); one of the sandblasting guns (4) is slidably arranged on the left half ring (31) and the other on the right half ring (32); the locking assembly (33) is arranged on the left half ring (31) and is used to position the right half ring (32) on the left half ring (31).

5. A pipeline sandblasting device according to claim 4, characterized in that: The locking assembly (33) comprises a locking bolt (331) and a locking nut (332); the locking bolt (331) is hingedly arranged on the left half ring (31); the locking nut (332) is threadedly arranged on the locking bolt (331); and the right half ring (32) is provided with a locking groove (321) for the locking bolt (331) to be inserted into.

6. A pipe sandblasting device according to claim 4, characterized in that: The driving mechanism (5) comprises a rack (51), a gear (52) and a driving motor (53); one rack (51) is provided on the left half ring (31) and one gear (52) is provided on the right half ring (32); the gear (52) is rotatably provided on the sandblasting gun (4); the gear (52) is meshed with the rack (51); the driving motor (53) is provided on the sandblasting gun (4); and the output shaft of the driving motor (53) is coaxially connected to the gear (52).

7. A pipeline sandblasting device according to claim 4, characterized in that: The left half ring (31) is provided with a first protective cover (7), and the right half ring (32) is provided with a second protective cover (8).

8. A pipeline sandblasting device according to claim 7, characterized in that: The first protective cover (7) and the second protective cover (8) are both provided with sealing strips (9) for tightening against the oil pipeline.

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