Drilling fluid stirring device for petroleum drilling

Abstract

The utility model relates to the technical field of well drilling, and provides a drilling fluid stirring device for petroleum well drilling, which comprises a device main body, a sealing cover and a discharge hole, the bottom end of the device main body is provided with support legs, the outer wall of the bottom end of the device main body is provided with a servo motor, a driving shaft of the servo motor penetrates through the inner wall of the device main body and is connected with a screw rod, and the screw rod is connected with the sealing cover. Stirring blades are installed on the outer wall of the lead screw, a threaded sleeve is movably installed on the outer wall of the lead screw, flow guide plates are symmetrically installed on the two sides of the threaded sleeve, wall scraping assemblies are welded to the side walls of the flow guide plates, sliding blocks are symmetrically installed on the outer walls of the wall scraping assemblies, and sliding grooves are symmetrically formed in the inner wall of the device body; a fixing rod is installed on the inner wall of the device body, the end, away from the servo motor, of the lead screw is movably installed at the bottom end of the fixing rod, and a fixing block is arranged at the top end of the fixing rod. By means of the technical scheme, the problems that in the prior art, the stirring effect is poor, and the interior of the device body cannot be comprehensively cleaned are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling production, in particular to a drilling fluid stirring device for petroleum drilling. Background Art

[0002] The drilling fluid mixing device for oil drilling is one of the most important equipment in the oil drilling industry. It is used to mix, circulate and control the performance of drilling fluid to ensure the smooth progress of drilling operations. The technical background of the drilling fluid mixing device includes mixing principle, working principle, automatic control, material selection, energy saving, environmental protection and safety. The continuous progress and application of these technologies help to improve the efficiency of drilling fluid treatment, reduce costs, and ensure the safety and environmental protection of drilling operations.

[0003] The patent specification with the announcement number CN 211800217 U discloses a drilling fluid stirring device for oil drilling, wherein a stirring shaft is provided at the center of the stirring tank, the stirring shaft is fixedly connected to the output shaft of the forward and reverse motor through a coupling, a spiral lifting groove is provided in the middle of the shaft body of the stirring shaft located in the stirring tank, stirring blades are fixed on both sides of the spiral lifting groove, rotating rings with ratchets are fixed on both sides of the stirring blades, a ratchet is provided on the outside of the rotating ring, the rotation of the ratchet is limited in the upper end plate or the lower end plate of the stirring tank, a horizontal plate is symmetrically fixed on the outside of the ratchet, and a vertical scraper is fixedly supported on the outer end of the horizontal plate. The utility model has a reasonable structural design, and its stirring shaft is a fixed structure, and the spiral lifting groove on the surface of the stirring shaft is used to increase turbulence and improve the mixing and stirring effect; the vertical scraper is supported by an internal meshing tooth ratchet mechanism, and the vertical scraper can scrape off the material attached to the inner wall during the reverse rotation of the stirring shaft, which is conducive to quick cleaning.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned drilling fluid stirring device for oil drilling has the following problems: the stirring sealing cover of the device is inconvenient to open, the scraper has limited cleaning effect on the inner wall of the equipment body, and impurities cannot be filtered during stirring, resulting in poor stirring effect. Therefore, we propose a drilling fluid stirring device for oil drilling. Utility Model Content

[0005] The utility model provides a drilling fluid stirring device for oil drilling, which solves the problems in the related art that the stirring effect is poor and the inside of the device body cannot be fully cleaned.

[0006] The technical solution of the utility model is as follows:

[0007] A drilling fluid stirring device for oil drilling comprises a device body, a sealing cover and a discharge hole, the bottom end of the device body is provided with a support foot, the outer wall of the bottom end of the device body is installed with a servo motor, the driving shaft of the servo motor passes through the inner wall of the device body and is connected with a screw rod, the outer wall of the screw rod is installed with a stirring blade, the outer wall of the screw rod is movably installed with a threaded sleeve, guide plates are symmetrically installed on both sides of the threaded sleeve, a scraper assembly is welded on the side wall of the guide plate, a sliding block is symmetrically installed on the outer wall of the scraper assembly, a sliding groove is symmetrically arranged on the inner wall of the device body, a fixing rod is installed on the inner wall of the device body, one end of the screw rod away from the servo motor is movably installed on the bottom end of the fixing rod, a fixing block is provided on the top of the fixing rod, a filter plate is movably installed on the fixing rod through the fixing block, a sealing plate is symmetrically and movably installed on the outer wall of the top end of the device body, a sealing cover is movably installed on the device body through the sealing plate, and the discharge hole is installed on the inner wall of the bottom end of the device body.

[0008] Preferably, the inner wall of the sealing cover is provided with a movable groove, a pull rod is movably mounted on the inner wall of the movable groove, and a pull ring is provided on the outer wall of the pull rod.

[0009] Preferably, a spring is welded to the outer wall of the movable groove, and one end of the spring away from the movable groove is welded to the outer wall of the pull ring.

[0010] Preferably, a positioning hole is provided on the outer wall of the sealing plate, and the bottom end of the pull rod matches the positioning hole.

[0011] Preferably, the outer wall portion of the screw rod is provided with an external thread, and the inner wall of the threaded sleeve is provided with an internal thread matching the external thread.

[0012] Preferably, a fixing groove is provided at the bottom end of the filter plate, the fixing groove is in a cross shape, and the fixing groove and the fixing block fit together.

[0013] Preferably, the inner walls on the upper and lower sides of the wall scraping assembly are provided with chamfers, and the outer wall of the wall scraping assembly fits the inner wall of the device body.

[0014] Preferably, the sealing plate is in an L-shaped structure, and the outer wall of the sealing cover is symmetrically provided with positioning grooves, and the positioning grooves and the sealing plate match each other.

[0015] The working principle and beneficial effects of the utility model are:

[0016] In the utility model, the servo motor, screw rod and scraper assembly are set, the servo motor is started, the screw rod is driven to rotate by the servo motor, and the stirring blade is driven to rotate by the intermittent forward and reverse rotation of the screw rod to stir the filtered liquid, and at the same time drive the threaded sleeve to rotate, the scraper assembly is limited by the slide groove and the slider, so that the scraper assembly and the guide plate can move up and down with the threaded sleeve, and the guide plate can be used to guide the stirred liquid, so that the liquid is stirred more fully and more evenly, and the servo motor is intermittently rotated forward and reversed to move the scraper assembly up and down to scrape the inner wall of the device body, clean the inner wall, and avoid liquid adsorbed on the inner wall during stirring. This structure can improve the stirring effect and can immediately scrape and clean the inner wall.

[0017] In the utility model, by means of the provided pull rod, filter plate and pull ring, the pull rod is manually pulled, and the pull ring compresses the spring to move the pull rod upward on the inner wall of the movable groove, so that the bottom end of the pull rod leaves the positioning hole, and the sealing plate is rotated to stop the sealing plate from clamping and fixing the sealing cover. The sealing cover is opened, and the raw materials are poured into the interior of the device body, and the liquid is filtered through the filter plate, and the sealing cover is clamped on the top of the device body. This structure facilitates the disassembly and assembly of the sealing cover, and the internal components of the device body can be cleaned and fed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the main structure of the device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the half-section structure of the device body proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the positioning groove structure proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the fixing groove structure proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the chute structure proposed by the utility model;

[0024] Figure 6 The utility model proposes Figure 5 A schematic diagram of the enlarged structure.

[0025] In the figure: 1. Device body; 2. Sealing cover; 3. Support foot; 4. Servo motor; 5. Discharge hole; 6. Pull rod; 7. Sealing plate; 8. Filter plate; 9. Screw rod; 10. Fixed rod; 11. Scraper assembly; 12. Guide plate; 13. Threaded sleeve; 14. Slide; 15. Sliding block; 16. Fixed block; 17. Fixed groove; 18. Spring; 19. Positioning hole; 20. Pull ring; 21. Movable groove; 22. Stirring blade; 23. Positioning groove. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on 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.

[0027] Example 1: Figure 1 to Figure 6 As shown, this embodiment proposes a drilling fluid stirring device for oil drilling, including a device body 1, a sealing cover 2 and a discharge hole 5. The bottom end of the device body 1 is provided with a support leg 3, and the outer wall of the bottom end of the device body 1 is installed with a servo motor 4. The driving shaft of the servo motor 4 penetrates the inner wall of the device body 1 and is connected with a screw rod 9. The outer wall of the screw rod 9 is installed with a stirring blade 22. The outer wall of the screw rod 9 is movably installed with a threaded sleeve 13. The two sides of the threaded sleeve 13 are symmetrically installed with guide plates 12. The side walls of the guide plates 12 are welded with a scraper assembly 11. The scraper assembly 1 1 is symmetrically provided with a slider 15 on the outer wall, a slide groove 14 is symmetrically provided on the inner wall of the device body 1, a fixing rod 10 is installed on the inner wall of the device body 1, one end of the screw rod 9 away from the servo motor 4 is movably installed on the bottom end of the fixing rod 10, a fixing block 16 is provided on the top end of the fixing rod 10, a filter plate 8 is movably installed on the fixing rod 10 through the fixing block 16, a sealing plate 7 is symmetrically and movably installed on the outer wall at the top end of the device body 1, a sealing cover 2 is movably installed on the device body 1 through the sealing plate 7, and a discharge hole 5 is installed on the inner wall at the bottom end of the device body 1.

[0028] In this embodiment, the outer wall of the screw rod 9 is provided with an external thread, and the inner wall of the threaded sleeve 13 is provided with an internal thread matching the external thread.

[0029] In this embodiment, chamfers are provided on the inner walls of the upper and lower sides of the wall scraping assembly 11 , and the outer wall of the wall scraping assembly 11 fits the inner wall of the device body 1 .

[0030] Specific as Figure 1 , Figure 2 Figure and Figure 4As shown, when using this structure, start the servo motor 4, drive the screw rod 9 to rotate through the servo motor 4, and drive the stirring blade 22 to rotate through the intermittent forward and reverse rotation of the screw rod 9 to stir the filtered liquid, and at the same time drive the threaded sleeve 13 to rotate, and use the slide groove 14 and the slider 15 to limit the scraper assembly 11, so that the scraper assembly 11 and the guide plate 12 move up and down with the threaded sleeve 13, and the guide plate 12 can be used to guide the stirred liquid, so that the liquid is stirred more fully and more evenly, and the servo motor 4 is used to intermittently rotate forward and reverse to move the scraper assembly 11 up and down to scrape the inner wall of the device body 1, clean its inner wall, and avoid liquid adsorption on its inner wall during stirring. This structure can improve the stirring effect and can immediately scrape and clean its inner wall.

[0031] Embodiment 2: The inner wall of the sealing cover 2 is provided with a movable groove 21 , the inner wall of the movable groove 21 is movably mounted with a pull rod 6 , and the outer wall of the pull rod 6 is provided with a pull ring 20 .

[0032] In this embodiment, a spring 18 is welded to the outer wall of the movable groove 21 , and one end of the spring 18 away from the movable groove 21 is welded to the outer wall of the pull ring 20 .

[0033] In this embodiment, a positioning hole 19 is provided on the outer wall of the sealing plate 7 , and the bottom end of the pull rod 6 matches the positioning hole 19 .

[0034] In this embodiment, a fixing groove 17 is provided at the bottom end of the filter plate 8 . The fixing groove 17 is in a cross shape, and the fixing groove 17 and the fixing block 16 fit together.

[0035] In this embodiment, the sealing plate 7 is in an L-shaped structure, and the outer wall of the sealing cover 2 is symmetrically provided with positioning grooves 23 , and the positioning grooves 23 and the sealing plate 7 match each other.

[0036] Specific as Figure 3 , Figure 5 and Figure 6 As shown, when this structure is used, the pull rod 6 is manually pulled, and the spring 18 is compressed through the pull ring 20 to move the pull rod 6 upward on the inner wall of the movable groove 21, so that the bottom end of the pull rod 6 leaves the positioning hole 19, and the sealing plate 7 is rotated to stop the sealing plate 7 from clamping and fixing the sealing cover 2. The sealing cover 2 is opened, and the raw materials are poured into the inside of the device body 1. The liquid is filtered through the filter plate 8, and the sealing cover 2 is clamped on the top of the device body 1. This structure facilitates the disassembly and assembly of the sealing cover 2, and the internal components of the device body 1 can be cleaned and fed.

[0037] Working principle: When in use, when stirring the drilling fluid, manually pull the pull rod 6, compress the spring 18 through the pull ring 20 to make the pull rod 6 move upward on the inner wall of the movable groove 21, so that the bottom end of the pull rod 6 leaves the positioning hole 19, rotate the sealing plate 7, so that the sealing plate 7 stops clamping and fixing the sealing cover 2, open the sealing cover 2, pour the raw material into the inside of the device body 1, filter the liquid through the filter plate 8, clamp the sealing cover 2 on the top of the device body 1, start the servo motor 4, drive the screw rod 9 to rotate through the servo motor 4, and drive the stirring blade 22 to rotate through the intermittent forward and reverse rotation of the screw rod 9 to stir the filtered liquid, and at the same time drive the threaded sleeve 13 to rotate, and use the slide groove 14 and the slider 15 to limit the scraper assembly 11, so that the scraper assembly 11 and the guide plate 12 move along the thread The sleeve 13 moves up and down, and the guide plate 12 can be used to guide the stirred liquid, so that the liquid is stirred more fully and more evenly. The servo motor 4 is used to intermittently rotate forward and reverse to make the scraper assembly 11 move up and down to scrape the inner wall of the device body 1 to clean its inner wall to avoid liquid adsorption on its inner wall during stirring. After stirring evenly, punch the discharge hole 5 to take out the stirred liquid. When it is necessary to clean the inside of the device body 1, remove the sealing cover 2, remove the filter plate 8 from above the fixed rod 10, and clean the filter plate 8. At the same time, the residual part of the inner wall that cannot be scraped and cleaned by the scraper assembly 11 can be cleaned. The device can conveniently disassemble and clean the internal filter plate 8, and at the same time, it is convenient to open the sealing cover 2 to facilitate cleaning of the feed, and the drilling fluid can be filtered to improve the stirring effect.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drilling fluid stirring device for oil drilling, comprising a device body (1), a sealing cover (2) and a discharge hole (5), characterized in that: The bottom end of the device body (1) is provided with a support foot (3), the outer wall of the bottom end of the device body (1) is mounted with a servo motor (4), the drive shaft of the servo motor (4) passes through the inner wall of the device body (1) and is connected to a screw rod (9), the outer wall of the screw rod (9) is mounted with a stirring blade (22), the outer wall of the screw rod (9) is movably mounted with a threaded sleeve (13), guide plates (12) are symmetrically mounted on both sides of the threaded sleeve (13), the side walls of the guide plates (12) are welded with a scraper assembly (11), the outer wall of the scraper assembly (11) is symmetrically mounted with a slider (15), and the device body (1) is provided with a plurality of screws (13) and a plurality of screws (15) are mounted on the outer wall of the scraper assembly (11). ) is symmetrically provided with a slide groove (14), the inner wall of the device body (1) is installed with a fixing rod (10), the end of the screw rod (9) away from the servo motor (4) is movably installed on the bottom end of the fixing rod (10), the top end of the fixing rod (10) is provided with a fixing block (16), the fixing rod (10) is movably installed with a filter plate (8) through the fixing block (16), the outer wall of the top end of the device body (1) is symmetrically and movably installed with a sealing plate (7), the device body (1) is movably installed with a sealing cover (2) through the sealing plate (7), and the inner wall of the bottom end of the device body (1) is installed with a discharge hole (5).

2. A drilling fluid stirring device for oil drilling according to claim 1, characterized in that: The inner wall of the sealing cover (2) is provided with a movable groove (21), a pull rod (6) is movably mounted on the inner wall of the movable groove (21), and a pull ring (20) is provided on the outer wall of the pull rod (6).

3. A drilling fluid stirring device for oil drilling according to claim 2, characterized in that: A spring (18) is welded to the outer wall of the movable groove (21), and one end of the spring (18) away from the movable groove (21) is welded to the outer wall of the pull ring (20).

4. A drilling fluid stirring device for oil drilling according to claim 2, characterized in that: The outer wall of the sealing plate (7) is provided with a positioning hole (19), and the bottom end of the pull rod (6) matches the positioning hole (19).

5. The drilling fluid stirring device for oil drilling according to claim 1, characterized in that: The outer wall portion of the screw rod (9) is provided with an external thread, and the inner wall of the threaded sleeve (13) is provided with an internal thread matching the external thread.

6. A drilling fluid stirring device for oil drilling according to claim 1, characterized in that: A fixing groove (17) is provided at the bottom end of the filter plate (8), the fixing groove (17) is in a cross shape, and the fixing groove (17) and the fixing block (16) fit together.

7. The drilling fluid stirring device for oil drilling according to claim 1, characterized in that: The inner walls of the upper and lower sides of the wall scraping component (11) are provided with chamfers, and the outer wall of the wall scraping component (11) fits the inner wall of the device body (1).

8. The drilling fluid stirring device for oil drilling according to claim 1, characterized in that: The sealing plate (7) is in an L-shaped structure, and the outer wall of the sealing cover (2) is symmetrically provided with positioning grooves (23), and the positioning grooves (23) and the sealing plate (7) match each other.

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