Petroleum drill rod anti-corrosion coating spraying device

Abstract

The utility model relates to the technical field of petroleum drill rod corrosion prevention, in particular to a petroleum drill rod anti-corrosion coating spraying device which comprises mounting frames arranged symmetrically, the bottom of one connecting block is fixedly connected with a first fixing block, the inner side of the first mounting frame is fixedly connected with a cleaning sponge, and the inner side of the first fixing block is fixedly connected with a second fixing block. The bottom of one connecting block is fixedly connected with a first fixing block, the bottom of the other connecting block is fixedly connected with a second fixing block, the top of the through pipe is fixedly connected with a spray head, and the liquid pumping end of the liquid pump is fixedly connected with an anti-corrosion coating agent liquid storage box. The cleaning sponge firstly makes contact with the petroleum drill rod to clean the petroleum drill rod, then the spraying head sprays the anticorrosive coating agent in the anticorrosive coating agent liquid storage box to the outer side of the petroleum drill rod, and the problem that a common petroleum drill rod anticorrosive coating spraying device cannot clean the petroleum drill rod is solved.

Description

Technical Field

[0001] This utility model relates to the field of oil drill pipe anti-corrosion technology, specifically to an oil drill pipe anti-corrosion coating spraying device. Background Technology

[0002] Oil drill pipe is an important component of oil drilling equipment, mainly used to connect the drilling rig's surface equipment to the drilling equipment or bottom hole device located at the bottom of the well. Drill pipes face various corrosive environments in oil and gas field engineering. These corrosive factors may lead to a decline in drill pipe performance and even cause safety accidents. In order to improve the service life of drill pipes and ensure the safety of drilling operations, an anti-corrosion coating is usually sprayed on the outside of the oil drill pipe during the production process using an oil drill pipe anti-corrosion coating spraying device.

[0003] When applying anti-corrosion coatings to oil drill pipes, cleaning is usually required to ensure that the coating adheres tightly to the drill pipe surface and achieves the best anti-corrosion effect. However, common oil drill pipe anti-corrosion coating spraying devices cannot clean the drill pipes, which reduces the efficiency of the device. Therefore, an oil drill pipe anti-corrosion coating spraying device is proposed to address the above problem. Utility Model Content

[0004] The purpose of this invention is to provide an anti-corrosion coating spraying device for oil drill pipes, so as to solve the problem that common anti-corrosion coating spraying devices for oil drill pipes cannot clean the oil drill pipes.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for spraying an anti-corrosion coating on oil drill pipe includes symmetrically arranged mounting frames. A servo motor is mounted on one side of the mounting frame. A threaded screw is fixedly connected to the end of the output shaft of the servo motor. Two threaded sleeves are threaded to the outer side of the threaded screw. Mounting blocks are fixedly connected to the outer sides of both threaded sleeves. A guide block is fixedly connected to the top of the mounting block. A guide rod is slidably connected to the inner side of the guide block. Connecting blocks are fixedly connected to the bottom of the mounting blocks. There are two connecting blocks in total. A first fixing block is fixedly connected to the bottom of one connecting block. A first receiving block is detachably connected to the outer side of the first fixing block by bolts. A first mounting frame is fixedly connected to the bottom of the first receiving block. A cleaning sponge is fixedly connected to the inner side of the first mounting frame. A cleaning sponge is fixedly connected to the bottom of the other connecting block. A second fixing block is detachably connected to a second receiving block via bolts on its outer side. A second mounting frame is fixedly connected to the bottom of the second receiving block. A threaded pipe is fixedly connected to the bottom of the second mounting frame. A nozzle is fixedly connected to the top of the pipe, and a connecting pipe is threadedly connected to the bottom of the pipe. A hose is fixedly connected to the bottom of the connecting pipe. A liquid pump is installed at the end of the hose away from the connecting pipe. An anti-corrosion coating agent storage tank is fixedly connected to the liquid pump's suction end. A drive motor is mounted on one side of the mounting frame via a base. A mounting plate is fixedly connected to the end of the drive motor's output shaft. A positioning rod for positioning the oil drill pipe is provided on the outer side of the mounting plate. A controller is mounted on one side of the mounting frame. The controller is electrically connected to the servo motor, drive motor, and liquid pump.

[0007] Preferably, the two ends of the guide rod are fixedly connected to two mounting brackets respectively, and the end of the threaded screw away from the output shaft of the servo motor is rotatably connected to the mounting bracket.

[0008] Preferably, the outer side of the positioning rod is fixedly connected to a positioning block that is evenly arranged, and the positioning block is detachably connected to the mounting plate by bolts.

[0009] Preferably, a damping sleeve is fixedly connected to the outer side of the positioning rod, and a limit plate is fixedly connected to the outer side of the positioning rod.

[0010] Preferably, the nozzle is connected to the through pipe, the through pipe is connected to the connecting pipe, the connecting pipe is connected to the hose, the hose is connected to the liquid pump, and the liquid pump is connected to the anti-corrosion coating agent storage tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, a structure consisting of a positioning rod, a servo motor, a threaded screw, a threaded sleeve, a mounting block, a first mounting frame, a cleaning sponge, a second mounting frame, a connecting pipe, a nozzle, and an anti-corrosion coating agent reservoir is used. After the positioning rod positions the oil drill pipe, the output shaft of the servo motor drives the threaded screw to rotate. The threaded screw then moves the threaded sleeve, mounting block, first mounting frame, cleaning sponge, second mounting frame, connecting pipe, and nozzle. This allows the cleaning sponge to first contact the oil drill pipe, cleaning it. Then, the nozzle sprays the anti-corrosion coating agent from the reservoir onto the outside of the oil drill pipe. This enables the oil drill pipe anti-corrosion coating spraying device to clean the oil drill pipe before applying the anti-corrosion coating, solving the problem that common oil drill pipe anti-corrosion coating spraying devices cannot clean the oil drill pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0016] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B.

[0017] In the diagram: 1. Mounting bracket; 2. Servo motor; 3. Threaded screw; 4. Threaded sleeve; 5. Mounting block; 6. Guide block; 7. Guide rod; 8. Connecting block; 9. First fixing block; 10. First receiving block; 11. First mounting frame; 12. Cleaning sponge; 13. Second fixing block; 14. Second receiving block; 15. Second mounting frame; 16. Through pipe; 17. Nozzle; 18. Connecting pipe; 19. Hose; 20. Liquid pump; 21. Anti-corrosion coating agent storage tank; 22. Drive motor; 23. Mounting plate; 24. Positioning block; 25. Positioning rod; 26. Damping sleeve; 27. Limiting plate; 28. Controller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0021] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A device for spraying an anti-corrosion coating on oil drill pipe includes symmetrically arranged mounting frames 1. A servo motor 2 is mounted on one side of the mounting frame 1. A threaded screw 3 is fixedly connected to the end of the output shaft of the servo motor 2. Two threaded sleeves 4 are threadedly connected to the outer side of the threaded screw 3. Mounting blocks 5 are fixedly connected to the outer side of each of the two threaded sleeves 4. A guide block 6 is fixedly connected to the top of the mounting block 5. A guide rod 7 is slidably connected to the inner side of the guide block 6. Connecting blocks 8 are fixedly connected to the bottom of the mounting block 5. There are two connecting blocks 8 in total. A first fixing block 9 is fixedly connected to the bottom of one connecting block 8. A first receiving block 10 is detachably connected to the outer side of the first fixing block 9 by bolts. A first mounting frame 11 is fixedly connected to the bottom of the first receiving block 10. A cleaning sponge 12 is fixedly connected to the inner side of the first mounting frame 11. A second fixing block 13 is fixedly connected to the bottom of the other connecting block 8. A second receiving block 13 is detachably connected to the outer side of the second fixing block 13 by bolts. 4. A second mounting frame 15 is fixedly connected to the bottom of the second receiving block 14. A through pipe 16 with a threaded inner wall is fixedly connected to the bottom of the second mounting frame 15. A nozzle 17 is fixedly connected to the top of the through pipe 16. A connecting pipe 18 is threadedly connected to the bottom of the through pipe 16. A hose 19 is fixedly connected to the bottom of the connecting pipe 18. A liquid pump 20 is installed at the end of the hose 19 away from the connecting pipe 18. An anti-corrosion coating agent storage tank 21 is fixedly connected to the liquid pump 20. A drive motor 22 is installed on one side of the mounting frame 1 via a base. A mounting plate 23 is fixedly connected to the end of the output shaft of the drive motor 22. A positioning rod 25 for positioning the oil drill pipe is provided on the outside of the mounting plate 23. A controller 28 is installed on one side of the mounting frame 1. The controller 28 is electrically connected to the servo motor 2, the drive motor 22, and the liquid pump 20. This configuration enables the oil drill pipe anti-corrosion coating spraying device to clean the oil drill pipe before spraying the anti-corrosion coating.

[0026] Both ends of the guide rod 7 are fixedly connected to two mounting brackets 1, and the end of the threaded screw 3 away from the output shaft of the servo motor 2 is rotatably connected to the mounting bracket 1. This arrangement allows the mounting bracket 1 to position the guide rod 7 and the threaded screw 3. Positioning blocks 24, evenly spaced, are fixedly connected to the outer side of the positioning rod 25. The positioning blocks 24 are detachably connected to the mounting plate 23 via bolts. This arrangement allows for the detachable installation of the positioning rod 25. A damping sleeve 26 is fixedly connected to the outer side of the positioning rod 25. The side-fixed connection has a limiting plate 27. This configuration allows the damping sleeve 26 to increase the friction between the positioning rod 25 and the inner wall of the oil drill pipe, making it less likely for the oil drill pipe to detach from the positioning rod 25 during rotation. The nozzle 17 is connected to the through pipe 16, the through pipe 16 is connected to the connecting pipe 18, the connecting pipe 18 is connected to the hose 19, the hose 19 is connected to the liquid pump 20, and the liquid pump 20 is connected to the anti-corrosion coating agent storage tank 21. This configuration allows for the flow of the anti-corrosion coating agent.

[0027] Workflow: In this utility model, all electrical appliances are equipped with an external power supply or a built-in battery. When the anti-corrosion coating of the oil drill pipe is to be sprayed onto the oil drill pipe using the anti-corrosion coating spraying device, the device is installed in a preset position using the mounting bracket 1. Then, the oil drill pipe is fitted onto the outside of the positioning rod 25 with the damping sleeve 26, and one end of the oil drill pipe is made to fit against the limiting plate 27. Then, the servo motor 2 and the drive motor 22 are started by the controller 28. The output shaft of the servo motor 2 drives the threaded screw 3 to rotate. The threaded screw 3 and the threaded sleeve 4 spiral together. The threaded sleeve 4 drives the mounting block 5 and the guide block 6 to move. Guided by the guide rod 7, the connecting block 8 away from the servo motor 2 drives the first fixing block 9, the first receiving block 10, the first mounting frame 11, the cleaning sponge 12, and the liquid pump 20. The connecting block 8 near the servo motor 2 drives the second fixing block 13, the second receiving block 14, the second mounting frame 15, the connecting pipe 16, the nozzle 17, the connecting pipe 18, and the hose 19 to move. The output shaft of the drive motor 22 drives the mounting plate 23, the positioning block 24, and the positioning rod 25 to rotate. The positioning rod 25 drives the damping sleeve 26, the limiting plate 27, and the oil drill pipe to rotate. The positioning rod 25 has a certain length, and the damping sleeve 26 can also increase the distance between the positioning rod 25 and the oil drill pipe. The friction between the inner walls of the drill pipe prevents the drill pipe from easily dislodging from the positioning rod 25 during rotation. A small amount of cleaning fluid is sprayed onto the positioning rod 25. The cleaning sponge 12 will first contact the outer side of the drill pipe, thus cleaning the outer side of the drill pipe. After the second mounting frame 15 is fitted onto the outer side of the drill pipe, the liquid pump 20 is started by the controller 28. The liquid pump 20 draws the anti-corrosion coating agent from the inside of the anti-corrosion coating agent storage tank 21 into the hose 19, and then flows from the hose 19 to the connecting pipe 18 and the through pipe 16, and finally sprays it out from the nozzle 17. The anti-corrosion coating agent sprayed from the nozzle 17 evenly coats the rotating drill pipe. When the first mounting frame 11... When in contact with the limit plate 27, the drive motor 22 and servo motor 2 are turned off by the controller 28. Then, the oil drill pipe is pulled to the right. When the oil drill pipe moves to the appropriate position, the drive motor 22 and servo motor 2 are restarted. The oil drill pipe is thoroughly cleaned and coated with an anti-corrosion coating. After the oil drill pipe is processed, the servo motor 2, drive motor 22 and liquid pump 20 are turned off. The oil drill pipe is then disengaged from the positioning rod 25 and damping sleeve 26. Then, the servo motor 2 is started, causing the output shaft of the servo motor 2 to rotate in the opposite direction, thereby moving the first mounting frame 11 and the second mounting frame 15 to their original positions to facilitate the processing of the next oil drill pipe.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for spraying anti-corrosion coating on oil drill pipe, comprising symmetrically arranged mounting frames (1), characterized in that: A servo motor (2) is mounted on one side of the mounting bracket (1). A threaded screw (3) is fixedly connected to the end of the output shaft of the servo motor (2). Two threaded sleeves (4) are threadedly connected to the outer side of the threaded screw (3). Mounting blocks (5) are fixedly connected to the outer sides of the two threaded sleeves (4). A guide block (6) is fixedly connected to the top of the mounting block (5). A guide rod (7) is slidably connected to the inner side of the guide block (6). A connecting block (8) is fixedly connected to the bottom of the mounting block (5). There are two such connecting blocks. One of them has a first fixing block (9) fixedly connected to its bottom. The first fixing block (9) is detachably connected to a first receiving block (10) via bolts. The bottom of the first receiving block (10) is fixedly connected to a first mounting frame (11). A cleaning sponge (12) is fixedly connected to the inside of the first mounting frame (11). The other connecting block (8) has a second fixing block (13) fixedly connected to its bottom. The outside of the second fixing block (13) is detachably connected to... A second receiving block (14) is provided, and a second mounting frame (15) is fixedly connected to the bottom of the second receiving block (14). A threaded pipe (16) is fixedly connected to the bottom of the second mounting frame (15). A nozzle (17) is fixedly connected to the top of the pipe (16), and a connecting pipe (18) is threadedly connected to the bottom of the pipe (16). A hose (19) is fixedly connected to the bottom of the connecting pipe (18), and a liquid pump (20) is installed at the end of the hose (19) away from the connecting pipe (18). The pump (20) is fixedly connected to a storage tank (21) for anti-corrosion coating agent. A drive motor (22) is mounted on one side of the mounting bracket (1) via a base. The output shaft of the drive motor (22) is fixedly connected to a mounting plate (23). A positioning rod (25) for positioning the oil drill pipe is provided on the outside of the mounting plate (23). A controller (28) is mounted on one side of the mounting bracket (1). The controller (28) is electrically connected to the servo motor (2), the drive motor (22), and the pump (20).

2. The oil drill pipe anti-corrosion coating spraying device according to claim 1, characterized in that: The two ends of the guide rod (7) are fixedly connected to the two mounting brackets (1) respectively, and the end of the threaded screw (3) away from the output shaft of the servo motor (2) is rotatably connected to the mounting bracket (1).

3. The oil drill pipe anti-corrosion coating spraying device according to claim 1, characterized in that: The positioning rod (25) is fixedly connected to a positioning block (24) that is evenly arranged. The positioning block (24) is detachably connected to the mounting plate (23) by bolts.

4. The oil drill pipe anti-corrosion coating spraying device according to claim 1, characterized in that: A damping sleeve (26) is fixedly connected to the outside of the positioning rod (25), and a limit plate (27) is fixedly connected to the outside of the positioning rod (25).

5. The oil drill pipe anti-corrosion coating spraying device according to claim 1, characterized in that: The nozzle (17) is connected to the through pipe (16), the through pipe (16) is connected to the connecting pipe (18), the connecting pipe (18) is connected to the hose (19), the hose (19) is connected to the liquid pump (20), and the liquid pump (20) is connected to the anti-corrosion coating agent storage tank (21).

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