Deep cleaning equipment for oil exploitation drill bit

Abstract

The utility model provides deep cleaning equipment for an oil exploitation drill bit, which relates to the technical field of drill bit cleaning and comprises a cleaning cylinder provided with an electromagnetic vibration exciter, a turntable mechanism provided with a detachable three-jaw chuck, a three-dimensional washing mechanism provided with a corrugated groove guide rail and an inner hole washing unit provided with a double-channel nozzle. The bottom of the cleaning cylinder is connected with a filter cylinder with a filter ball valve through a punched hole, a liftable three-dimensional washing mechanism is arranged on the outer wall of a cylinder body, and the mechanism is in linkage with an outer rotary table and an inner circular table through a driving rod, so that a sliding plate seat generates axial displacement along a corrugated groove, and an arm brush is driven to form a spiral cleaning track. The problems that an inner hole is not washed thoroughly and residual oil sludge at a thread part is difficult to remove in traditional drill bit cleaning are solved, and synchronous cleaning of the surface of the drill bit and the inner hole is achieved through the synergistic effect of electromagnetic excitation and mechanical scrubbing.

Description

Technical Field

[0001] This utility model relates to the field of drill bit cleaning technology, and in particular to a deep cleaning device for oil extraction drill bits. Background Technology

[0002] In oil extraction, drill bits are core tools. If impurities such as mud, sand, and oil residue remain in the gaps between their rollers and cones, it will affect the efficiency of subsequent operations and the lifespan of the drill bit. Currently, the industry mainly uses manual brushing or mechanical rotary brushing for cleaning, but traditional methods have significant drawbacks. Existing automatic cleaning equipment mostly relies on a single brush head for point-to-point cleaning, requiring frequent shutdowns to replace drill bits, and lacks a pre-soaking stage, making it difficult to effectively remove stubborn deposits. Furthermore, it lacks deep cleaning methods for complex structures.

[0003] A Chinese patent with publication number CN 221790229 U discloses a drill bit cleaning device for oil extraction, including a cleaning tank, a rotating cleaning brush, a cleaning motor, a clamping plate, a clamping stud, an assembly column, a cross positioning block, an assembly support, an angle-adjusting motor, and a filter mesh plate. The drill bit is fixed to the clamping plate by the clamping stud and pre-treated by immersing it in cleaning fluid. The rotating cleaning brush rotates at high speed driven by the cleaning motor to brush the drill bit below. The angle-adjusting motor drives the assembly support to rotate, causing the clamping plate to switch the drill bit to the brushing area for continuous cleaning. The filter mesh plate separates impurities in the cleaning fluid for centralized cleaning. However, this design relies on the mechanical action of the brush bristles, which has limited effectiveness in cleaning stubborn deposits in the gaps of roller cone drill bits. Furthermore, it lacks a targeted high-pressure flushing or ultrasonic-assisted cleaning device, making it difficult to meet the deep cleaning needs of oil extraction drill bits.

[0004] In response to the aforementioned technologies, a deep cleaning device for oil drilling bits is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] This invention proposes a deep cleaning device for oil drilling bits, which solves the problems of incomplete internal flushing and difficulty in removing residual sludge from threaded parts in traditional drill bit cleaning.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a deep cleaning equipment for oil drilling bits, including: a cleaning cylinder, a filter cylinder fixedly installed at the bottom of the cleaning cylinder, a support frame, an inner hole flushing unit and a servo motor, an electric lifting arm fixedly installed on the outer wall of the cleaning cylinder, and a three-dimensional washing mechanism fixedly installed at the output end of the electric lifting arm.

[0007] The three-dimensional washing mechanism includes a drive motor, a drive rod, an outer turntable, an inner truncated cone, a slide plate, a tilting rod, and an arm brush. The drive motor is fixedly installed at the top of the electric lifting arm. The output shaft of the drive motor is fixedly connected to the drive rod through a coupling. The drive rod passes through the center of the inner truncated cone and is connected to the outer turntable. The drive rod is movably connected to the inner truncated cone. The outer turntable is covered on the outside of the inner truncated cone. A tilting rod is rotatably connected to the side wall of the outer turntable. An arm brush is screwed to one end of the tilting rod that extends out of the outer turntable. The other end of the tilting rod that extends into the inner truncated cone is fixedly connected to the slide plate.

[0008] The outer wall of the turntable, at the end furthest from the drive motor, is provided with staggered bristles;

[0009] The inner truncated cone includes a truncated body, a convex connector, and a guide ring seat. The truncated body has a corrugated groove, and the convex connector is located inside the truncated body. The two ends of the convex connector are fixedly connected to the truncated body and the guide ring seat, respectively.

[0010] The bottom of the skateboard seat is equipped with rotating rollers, and the skateboard seat is slidably connected to the corrugated groove.

[0011] Preferably, the outer turntable is provided with an inwardly recessed structural groove in the middle to accommodate the inner truncated cone.

[0012] Preferably, the convex strip connector includes a mountain-shaped block and a vertical connecting rod welded to the mountain-shaped block. The working slope of the mountain-shaped block forms an angle of 45 degrees plus or minus 2 degrees with the horizontal plane. The crest of the mountain-shaped block and the trough of the corrugated groove together form the travel track of the slide seat.

[0013] Preferably, the cleaning cylinder includes a cylinder body, a turntable, and electromagnetic vibrators. Three sets of electromagnetic vibrators are circumferentially distributed on the inner wall of the cylinder body. The electromagnetic vibrators are fixed to the inner wall of the cylinder body by flanges. The turntable is movably connected to the bottom of the cleaning cylinder by bearings. Three limiting grooves are circumferentially distributed on the turntable. Three-jaw chucks for holding drill bits are detachably connected in the three limiting grooves. The turntable is connected to a servo motor by a shaft.

[0014] Preferably, a perforation is provided at the connection between the bottom of the cleaning cylinder and the filter cylinder, and a ball valve with a filter screen is provided at the water outlet at the bottom of the filter cylinder.

[0015] Preferably, the inner hole flushing unit is located at the position corresponding to the punching hole at the top of the filter cartridge. The inner hole flushing unit includes a lifting frame and an inner hole flushing probe. The lifting frame is fixedly installed at the bottom of the cleaning cartridge. One end of the inner hole flushing probe is provided with a rotatable dual-channel nozzle, and the other end extends out of the side wall of the filter cartridge through a corrugated hose and is connected to an external high-pressure water pump.

[0016] Compared with the prior art, the beneficial effects of this utility model include: the spiral trajectory brushing of the three-dimensional washing mechanism, combined with the corrugated groove guidance, improves the cleaning coverage of the drill bit's spiral groove; the combination structure of a detachable three-jaw chuck and an electric lifting arm enables rapid positioning and installation of drill bits of different specifications; the frequency vibration wave generated by the electromagnetic vibrator and the rotation of the turntable form a composite motion, shortening the time for peeling off the slab rock cuttings adhering to the surface; the dual-channel nozzle of the inner hole flushing probe forms a rotating gas-liquid mixture under pressure, effectively removing the adhesive deposits adhering to the inner wall. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 The diagram illustrates the structure of a deep cleaning device for oil drilling bits according to one embodiment of the present invention.

[0019] Figure 2 The diagram schematically shows a cross-sectional structural schematic of a deep cleaning device for oil extraction drill bits according to one embodiment of the present invention.

[0020] Figure 3 The schematic diagram shows the structural layout of the turntable and the inner hole flushing unit according to one embodiment of the present invention.

[0021] Figure 4 The schematic diagram shows a structural schematic of an external turntable according to one embodiment of the present invention.

[0022] Figure 5 The schematic diagram shows a structural schematic of a three-dimensional washing mechanism according to one embodiment of the present invention.

[0023] Figure 6 The schematic diagram shows a structural diagram of the filter cartridge position according to one embodiment of the present invention.

[0024] The diagram is labeled as follows: 1. Cleaning cylinder; 10. Punching; 11. Cylinder body; 12. Turntable; 13. Electromagnetic vibrator; 120. Limiting groove; 121. Three-jaw chuck; 2. Filter cartridge; 3. Support frame; 4. Electric lifting arm; 5. Three-dimensional washing mechanism; 50. Structural groove; 51. Drive motor; 52. Drive rod; 53. Outer turntable; 54. Inner frustum; 541. Platform body; 542. Convex strip connector; 543. Guide ring seat; 5410. Corrugated groove; 5421. Mountain-shaped block; 5422. Vertical connecting rod; 55. Slide plate seat; 56. Tilting rod; 57. Arm brush; 6. Inner hole flushing unit; 61. Lifting frame; 62. Inner hole flushing probe; 7. Servo motor. Detailed Implementation

[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0026] According to one embodiment of the present invention, in conjunction with Figures 1-6 As shown. A deep cleaning device for oil drilling bits includes: a cleaning cylinder 1, a filter cylinder 2 fixedly mounted at the bottom of the cleaning cylinder 1, a support frame 3, an inner hole flushing unit 6 and a servo motor 7, an electric lifting arm 4 fixedly mounted on the outer wall of the cleaning cylinder 1, and a three-dimensional washing mechanism 5 fixedly mounted at the output end of the electric lifting arm 4. A perforation 10 is provided at the connection between the bottom of the cleaning cylinder 1 and the filter cylinder 2. Through the perforation 10, the cleaning fluid can be concentrated and guided into the filter cylinder 2 for impurity filtration. A ball valve with a filter screen is provided at the water outlet at the bottom of the filter cylinder 2 to intercept particulate matter during drainage.

[0027] The three-dimensional cleaning mechanism 5 includes a drive motor 51, a drive rod 52, an outer turntable 53, an inner truncated cone 54, a slide block 55, a tilting rod 56, and an arm brush 57. The drive motor 51 is fixedly mounted on the top of the electric lifting arm 4, and its output shaft is fixedly connected to the drive rod 52 via a coupling. The drive rod 52 passes through the center of the inner truncated cone 54 and is connected to the outer turntable 53 to form a synchronous rotation structure. The outer turntable 53 covers the outer side of the inner truncated cone 54, and its middle part is provided with an inwardly recessed structural groove 50 for accommodating the inner truncated cone 54. This nested design allows the staggered bristles on the outer wall of the outer turntable 53 to perform circumferential polishing on the drill bit surface. At the same time, the corrugated groove 5410 of the inner truncated cone 54 cooperates with the rollers at the bottom of the slide block 55, causing the slide block 55 to generate axial displacement when rotating, which drives the arm brush 57 at the end of the tilting rod 56 to complete a spiral trajectory cleaning, achieving full coverage cleaning of the drill bit groove.

[0028] The inner truncated cone 54 includes a truncated cone body 541, a convex connecting member 542, and a guide ring seat 543. The convex connecting member 542 consists of a mountain-shaped block 5421 and a vertical connecting rod 5422 welded to it. The working inclined surface of the mountain-shaped block 5421 forms an angle of 45°±2° with the horizontal plane. Its crest and the trough of the corrugated groove 541 together form the travel track of the slide plate seat 55. Through this inclined guiding mechanism, the slide plate seat 55 can generate axial vibration with controllable amplitude during rotation, effectively removing stubborn sludge from the drill bit thread. The slide plate seat 55 is slidably connected to the corrugated groove 5410, and the rollers rotating at its bottom can reduce friction loss and extend the service life of the equipment.

[0029] The cleaning cylinder 1 includes a cylinder body 11, a turntable 12, and electromagnetic vibrators 13. Three sets of electromagnetic vibrators 13, circumferentially distributed on the inner wall of the cylinder body 11, are fixed by flanges and can generate adjustable frequency vibration waves. These, in conjunction with three limiting grooves 120 connected by bearings on the turntable 12 and a detachable three-jaw chuck 121, cause the held drill bit to synchronously generate high-frequency micro-vibrations when driven to rotate by the servo motor 7, accelerating the removal of surface dirt. The turntable 12 is connected to the servo motor 7 via a shaft, allowing for the rotation and repositioning of the drill bit to be cleaned.

[0030] The internal flushing unit 6 is located at the top of the filter cartridge 2 corresponding to the punch 10, and includes a lifting frame 61 and an internal flushing probe 62. The lifting frame 61 is fixedly installed at the bottom of the cleaning cartridge 1, and the depth to which the rotatable dual-channel nozzle at the end of the internal flushing probe 62 extends into the drill bit's internal bore is adjustable. Its dual-channel design can simultaneously spray cleaning fluid and compressed air. An external high-pressure water pump connected through a corrugated hose provides a flushing pressure of 8-15 MPa to ensure that impurities on the drill bit's inner wall and in the blind hole area are thoroughly removed.

[0031] This equipment improves the cleaning efficiency of drill bit surfaces by more than 40% through the combined action of the spiral trajectory brushing of the three-dimensional brushing mechanism 5 and the electromagnetic vibrator 13; the inclined guide mechanism of the convex strip connector 542 can precisely control axial vibration within ±0.5mm range to avoid damage to the precision threads of the drill bit; the detachable three-jaw chuck 121 is adapted to the installation of drill bits of different specifications, and with the vertical adjustment function of the electric lifting arm 4, it can realize the cleaning operation of drill bits of different lengths.

[0032] In this embodiment, during operation, the drive motor 51 drives the drive rod 52 to rotate synchronously via a coupling, causing the outer turntable 53 to rotate around the central axis of the inner frustum 54. Since the drive rod 52 is movably connected to the inner frustum 54, the outer turntable 53 forms a gear train with the platform 541 via the guide ring seat 543, causing the slide plate 55 to slide along the corrugated groove 5410 on the platform 541 in a sinusoidal trajectory. When the rollers at the bottom of the slide plate 55 slide and rotate along the corrugated groove 5410, the fixedly connected rotating rod 56 drives the arm brush 57 to rotate periodically, performing three-dimensional cleaning of the drill bit. Through the mountain-shaped block 5421 and the corrugated groove 5410 forming a composite motion track, when the slide plate 55 precisely enters the corrugated groove 5410 and reaches the crest position, it pushes the rotating rod 56 to complete a 90° directional rotation. Meanwhile, the turntable 12 is driven to rotate by the servo motor 7 to switch the drill bit to be cleaned. Combined with the 20kHz high-frequency vibration generated by the three sets of electromagnetic vibrators 13 inside the cylinder 11, the cavitation stripping of the deposits on the drill bit surface is achieved.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A deep cleaning device for oil drilling bits, characterized in that, include: The washing cylinder, the filter cylinder fixedly installed at the bottom of the washing cylinder, the support frame, the inner hole flushing unit and the servo motor, the electric lifting arm fixedly installed on the outer wall of the washing cylinder and the three-dimensional washing mechanism fixedly installed at the output end of the electric lifting arm; The three-dimensional washing mechanism includes a drive motor, a drive rod, an outer turntable, an inner truncated cone, a slide plate, a tilting rod, and an arm brush. The drive motor is fixedly installed at the top of the electric lifting arm. The output shaft of the drive motor is fixedly connected to the drive rod via a coupling. The drive rod passes through the center of the inner truncated cone and is connected to the outer turntable. The drive rod is movably connected to the inner truncated cone. The outer turntable covers the outside of the inner truncated cone. A tilting rod is rotatably connected to the side wall of the outer turntable. An arm brush is screwed to one end of the tilting rod that extends out of the outer turntable. The end of the tilting rod that extends into the inner truncated cone is fixedly connected to the slide plate. The outer wall of the end of the turntable away from the drive motor is provided with staggered bristles; The inner truncated cone includes a truncated body, a convex connector, and a guide ring seat. The truncated body has a corrugated groove. The convex connector is located inside the truncated body. The two ends of the convex connector are fixedly connected to the truncated body and the guide ring seat, respectively. The bottom of the skateboard seat is equipped with rotatable rollers, and the skateboard seat is slidably connected to the corrugated groove.

2. The deep cleaning equipment for oil drilling bits according to claim 1, characterized in that, The outer turntable is provided with an inwardly recessed structural groove in the middle to accommodate the inner truncated cone.

3. The deep cleaning equipment for oil drilling bits according to claim 1, characterized in that, The convex strip connector includes a mountain-shaped block and a vertical connecting rod welded to the mountain-shaped block. The working inclined surface of the mountain-shaped block forms an angle of 45°±2° with the horizontal plane. The crest of the mountain-shaped block and the trough of the corrugated groove together form the travel track of the slide seat.

4. The deep cleaning equipment for oil drilling bits according to claim 1, characterized in that, The cleaning cylinder includes a cylinder body, a turntable, and electromagnetic vibrators. Three sets of electromagnetic vibrators are circumferentially distributed on the inner wall of the cylinder body. The electromagnetic vibrators are fixed to the inner wall of the cylinder body by flanges. The turntable is movably connected to the bottom of the cleaning cylinder by bearings. Three limiting grooves are circumferentially distributed on the turntable. Three-jaw chucks for holding drill bits are detachably connected in the three limiting grooves. The turntable is connected to a servo motor by a shaft.

5. The deep cleaning equipment for oil drilling bits according to claim 1, characterized in that, A perforation is provided at the connection between the bottom of the cleaning cylinder and the filter cylinder, and a ball valve with a filter screen is provided at the water outlet at the bottom of the filter cylinder.

6. The deep cleaning equipment for oil drilling bits according to claim 1, characterized in that, The inner hole flushing unit is located at the position corresponding to the punching hole at the top of the filter cartridge. The inner hole flushing unit includes a lifting frame and an inner hole flushing probe. The lifting frame is fixedly installed at the bottom of the cleaning cartridge. One end of the inner hole flushing probe is provided with a rotatable dual-channel nozzle, and the other end extends out of the side wall of the filter cartridge through a corrugated hose and is connected to an external high-pressure water pump.

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