Connecting mechanism for oil exploitation

Abstract

The invention relates to the technical field of fixing devices, in particular to an oil exploitation connecting mechanism which comprises a supporting base, a positioning seat is slidably connected to the top of the supporting base, a fixing seat is rotatably connected to the top of the positioning seat, two positioning mechanisms are symmetrically arranged on the surface of the positioning seat, and a fixing mechanism is arranged in the fixing seat. The positioning mechanism comprises two fixing clamps and a hydraulic cylinder. A plurality of drill rods are fixed through the positioning mechanism and the fixing mechanism correspondingly, then through the rotating effect of the fixing base, connection between the upper drill rod and the unused drill rod is facilitated, positioning installation between the whole and the lower drill rod is facilitated, and in the rotating process, the cleaning box is forced to move to the position over the lower drill rod, so that the cleaning efficiency is improved. The threads at the connector are rotationally washed through rotation of the fan wheel, slurry can be prevented from remaining at the threads, it is guaranteed that butt joint installation is conducted smoothly, and the threads are prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of fixing devices, and in particular to a connecting mechanism for oil exploitation. Background Art

[0002] Petroleum is called the blood of industry. It is an important raw material for industrial development and industrial operations. Its derivative products are present in all aspects of life. When extracting oil, it is necessary to build a drilling platform above the extraction well, and then use the corresponding drill bit to connect the drill pipe to drill down. During the drilling process, as the depth continues to increase, it is necessary to continuously add drill rods to extend the working depth of the drill bit. In this process, the corresponding connecting rod mechanism will be used to complete the connection of the drill pipe.

[0003] The existing working method is often to fix the lower drill rod and the unused drill rod through two fixing devices, and then separate the upper drill rod from the lower drill rod through the rotation of the drilling equipment. Then, workers manually move the upper drill rod to connect it with the unused drill rod, lift and move it to dock with the lower drill rod, and rotate and fix it again.

[0004] However, the existing devices often have the following problems during specific operation: first, the two fixing devices are independent structures, and one end of each fixing device needs to be fixed to the surface of the lower drilling equipment when in use, so as to ensure the fixing effect of the fixing device on the lower drill rod and the unused drill rod. The whole process requires the staff to constantly move and adjust the position of the fixing device, and when the upper drill rod rotates, the staff needs to apply a force in the opposite direction of the rotation, so as to ensure the fixing effect of the fixing device on the lower drill rod when the rotation is separated or combined. This working method is not convenient, and generally has high requirements for the use of the staff. Since the force applied by the staff itself needs to counteract the mechanical force of the entire lower drilling equipment, the strength requirements for the staff are high, and it is easy to cause injuries during operation; Secondly, during the drilling process, mud needs to be continuously injected into the drill pit through the drill rod. Since the connection between two adjacent drill rods is often through threads, when separating, the mud remaining inside the drill rod will inevitably flow to the threaded interface of the drill rod below. If it is not cleaned, impurities such as fine sand in the mud will adhere to the threaded interface, affecting the docking and fixing effect of the drill rod. After working for a long time, it will also cause damage to the thread at the interface, making the entire drill rod unusable. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a connecting mechanism for oil production.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A connection mechanism for oil extraction, comprising a support base, a positioning seat is slidably connected to the top of the support base, a fixing seat is rotatably connected to the top of the positioning seat, two positioning mechanisms are symmetrically arranged on the surface of the positioning seat, and a fixing mechanism is arranged inside the fixing seat; The positioning mechanism includes two fixing clamps and a hydraulic cylinder. The two hydraulic cylinders are symmetrically fixedly connected to the surface of the positioning seat. The telescopic ends of the hydraulic cylinders are fixedly connected to a connecting plate. The two sides of the connecting plate surface are symmetrically hinged with connecting blocks. The other end of the connecting block is hinged to the fixing clamp. The two fixing clamps are symmetrically hinged to the surface of the positioning seat, and the two fixing clamps are respectively located on both sides of the hydraulic cylinder. The interior of the positioning seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear plate through a coupling, the bottom of the fixed seat is fixedly connected with a gear ring, the gear plate is rotatably connected to the interior of the gear ring, and the gear plate is meshed with the gear ring.

[0007] In the above-mentioned connection mechanism for oil extraction, a high-pressure water pump is fixedly connected to the surface of the positioning seat, a water suction pipe is connected to one side of the surface of the high-pressure water pump, a water injection pipe is connected to the top of the high-pressure water pump, the other end of the water injection pipe is connected to a cleaning box, a plurality of conduits are fixedly connected to the interior of the cleaning box, the water injection pipe extends to the surface inside the cleaning box and is connected to the conduit, a fan wheel is rotatably connected to the bottom of the cleaning box, the other end of the conduit is located at the top of the fan wheel, a linkage rod is fixedly connected to the surface of the cleaning box, the output end of the motor is fixedly connected to a transmission tooth through a coupling, and the transmission tooth is located below the gear plate, the transmission tooth is meshed with the linkage rod, and the linkage rod is slidably connected to the interior of the positioning seat.

[0008] In the above-mentioned connecting mechanism for oil extraction, the positioning mechanism includes two positioning clamping arms and a high-pressure push rod. The high-pressure push rod is fixedly connected to the inside of the fixed seat, and the telescopic end of the high-pressure push rod is fixedly connected to a connecting plate. Connecting rods are symmetrically hinged on both sides of the surface of the connecting plate. The other end of the connecting rod is hinged to the positioning clamping arm, and the two positioning clamping arms are symmetrically hinged to the inside of the fixed seat.

[0009] In the above-mentioned connection mechanism for oil extraction, the two positioning clamp arms are respectively located on both sides of the high-pressure push rod, and the surfaces of the two positioning clamp arms on opposite sides are symmetrically rotatably connected with transverse rotating blocks.

[0010] In the above-mentioned connection mechanism for oil extraction, the bottom of the support base is rotatably connected to a moving wheel, and four lifting cylinders are symmetrically fixedly connected inside the support base, and the telescopic ends of the lifting cylinders are fixedly connected to the bottom of the positioning seat.

[0011] In the above-mentioned connecting mechanism for oil extraction, a pneumatic push rod is fixedly connected to the inside of the support base, the telescopic end of the pneumatic push rod is fixedly connected to a connecting strip, the bottom of the connecting strip is symmetrically fixedly connected to two support columns, the bottom of the support column is hinged with a support leg, the two support legs are hinged to each other, and the support legs are hinged to the inside of the support base.

[0012] In the above-mentioned connecting mechanism for oil extraction, one end of the two legs away from each other is hinged with a support foot, the surface of the support foot is fixedly connected with a positioning spring, and the other end of the positioning spring is fixedly connected to the inside of the leg.

[0013] In the above-mentioned connection mechanism for oil extraction, the interior of the positioning seat is fixedly connected with a limiting slider, and the linkage rod is slidably connected to the interior of the positioning seat via the limiting slider.

[0014] Compared with the existing technology, the advantages of the connecting rod mechanism for oil production drill bits are: 1. The lower drill rod and the unused drill rod are fixed respectively by two positioning mechanisms, and the upper drill rod is fixed by the upper fixing mechanism, which can ensure the fixing effect, facilitate the fixing of the drill rod, avoid frequent manual movement and adjustment, and do not require workers to apply manual force, which greatly improves the safety of work; 2. Through the rotation effect between the fixed seat and the positioning seat, it is ensured that the upper drill rod can be accurately moved to the top of the unused drill rod after being separated from the lower drill rod, which is convenient for docking installation, avoids the dislocation during manual adjustment, prevents collision due to dislocation, and avoids damage to the screw; 3. The meshing effect of the transmission gear and the linkage rod forces the cleaning box to move to the top of the drill pipe below. The fan wheel rotates under the impact of the water flow, and the internal thread of the drill pipe below is rotated and flushed, which can easily clean the mud at the interface, ensure the smoothness of the threaded connection, and prevent the thread from being damaged. In summary, the present invention fixes multiple drill rods respectively through the positioning mechanism and the fixing mechanism, and then through the rotation effect of the fixing seat, it is convenient to connect the upper drill rod with the unused drill rod, and facilitate the positioning and installation between the whole and the lower drill rod. In the process of rotation, the cleaning box is forced to move to the top of the lower drill rod, and the threads at the interface are rotated and flushed by the rotation of the fan wheel, which can prevent mud from remaining on the threads, ensure the smooth docking installation, and prevent thread damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a schematic diagram of the cross-sectional structure of the gear ring of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the positioning seat of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the transmission gear of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the cleaning box of the present invention; Figure 6 It is a schematic diagram of the fan wheel connection structure of the present invention; Figure 7 It is a schematic diagram of the cross-sectional connection structure of the support base of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the linkage rod of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the leg support of the present invention.

[0016] In the figure: 1. Support base; 2. Positioning seat; 3. Fixing seat; 4. Positioning mechanism; 401. Fixing clamp; 402. Hydraulic cylinder; 5. Fixing mechanism; 501. Positioning clamp arm; 502. High-pressure push rod; 6. Connecting plate; 7. Connecting block; 8. Motor; 9. Gear plate; 10. Gear ring; 11. High-pressure water pump; 12. Suction pipe; 13. Water injection pipe; 14. Cleaning box; 15. Conduit; 16. Fan wheel; 17. Linkage rod; 18. Transmission gear; 19. Connecting plate; 20. Connecting rod; 21. Horizontal rotating block; 22. Moving wheel; 23. Lifting cylinder; 24. Pneumatic ejector; 25. Connecting strip; 26. Support column; 27. Support leg; 28. Support foot; 29. ​​Positioning spring; 30. Limiting slider. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] Reference Figure 1-Figure 9A connection mechanism for oil extraction, comprising a support base 1, a positioning seat 2 is slidably connected to the top of the support base 1, a fixed seat 3 is rotatably connected to the top of the positioning seat 2, two positioning mechanisms 4 are symmetrically arranged on the surface of the positioning seat 2, a fixing mechanism 5 is arranged inside the fixing seat 3, the positioning mechanism 4 comprises two fixing clamps 401 and a hydraulic cylinder 402, the two hydraulic cylinders 402 are symmetrically fixedly connected to the surface of the positioning seat 2, the telescopic ends of the hydraulic cylinders 402 are fixedly connected to a connecting plate 6, the two sides of the surface of the connecting plate 6 are symmetrically hinged with connecting blocks 7, the other end of the connecting block 7 is hinged to the fixing clamp 401, the two fixing clamps 401 are symmetrically hinged to the surface of the positioning seat 2, and the two fixing clamps 401 are respectively located on both sides of the hydraulic cylinder 402, and the inside of the positioning seat 2 is fixedly connected with a motor 8, The output end of the motor 8 is fixedly connected to a gear plate 9 through a coupling, and a gear ring 10 is fixedly connected to the bottom of the fixed seat 3. The gear plate 9 is rotatably connected to the inside of the gear ring 10, and the gear plate 9 is meshed with the gear ring 10. The positioning mechanism 4 includes two positioning clamping arms 501 and a high-pressure push rod 502. The high-pressure push rod 502 is fixedly connected to the inside of the fixed seat 3, and the telescopic end of the high-pressure push rod 502 is fixedly connected to a connecting disk 19. Connecting rods 20 are symmetrically hinged on both sides of the surface of the connecting disk 19, and the other end of the connecting rod 20 is hinged to the positioning clamping arms 501. The two positioning clamping arms 501 are symmetrically hinged to the inside of the fixed seat 3. The two positioning clamping arms 501 are respectively located on both sides of the high-pressure push rod 502, and the surfaces of the opposite sides of the two positioning clamping arms 501 are symmetrically rotatably connected with a transverse rotating block 21.

[0020] Among them, the hydraulic cylinder 402 on one side is extended and retracted to work, and the hinge effect between the connecting plate 6 and the connecting block 7 is cooperated to drive the fixing clamps 401 on both sides to hinge and rotate symmetrically, so as to fix the drill rod at the bottom after use. At the same time, the high-pressure push rod 502 forces the positioning clamp arms 501 on both sides to fix the drill rod at the top after use through the hinge effect of the connecting plate 19 and the connecting rod 20, and then the upper drill rod is driven to rotate by the rotation of the drilling equipment, so as to force the upper and lower drill rods to separate. The lateral rotating block 21 can assist the upper drill rod to rotate in a horizontal direction, and can prevent the upper drill rod from sliding down due to gravity. After separation, the motor is used to 8 cooperates with the gear plate 9 to drive the gear ring 10 to rotate, which can drive the fixing seat 3 to rotate 180 degrees, rotate the upper drill rod to just above the unused drill rod, and force the two to dock and install again through the rotation effect, then loosen the positioning clamp arm 501 and the fixing clamp 401, lift the assembled drill rod through the drilling equipment, and after the unused drill rod is lifted and completely suspended in the air, clamp the assembled drill rod again through the positioning clamp arm 501 and the fixing clamp 401, and the fixing seat 3 works through the motor 8 and rotates 180 degrees in the opposite direction to just above the lower drill rod, and then can be accurately aligned and installed to avoid deviation and collision during manual adjustment, thereby protecting the drill rod.

[0021] The bottom of the support base 1 is rotatably connected to a moving wheel 22, and four lifting cylinders 23 are symmetrically fixedly connected inside the support base 1. The telescopic ends of the lifting cylinders 23 are fixedly connected to the bottom of the positioning seat 2. When the drilling equipment lifts the drill pipe, its lifting height will not always be at the same height. The specific working height of the positioning seat 2 and the fixed seat 3 can be adjusted by the lifting cylinders 23 to adapt to the specific working height.

[0022] The support base 1 is fixedly connected with a pneumatic push rod 24 inside, and the telescopic end of the pneumatic push rod 24 is fixedly connected with a connecting strip 25. The bottom of the connecting strip 25 is symmetrically fixedly connected with two support columns 26. The bottom of the support column 26 is hinged with a support leg 27. The two support legs 27 are hinged to each other, and the support leg 27 is hinged to the inside of the support base 1. The ends of the two support legs 27 away from each other are hinged with a support foot 28. The surface of the support foot 28 is fixedly connected with a positioning spring 29, and the other end of the positioning spring 29 is fixedly connected to the inside of the support leg 27. Through the telescopic work of the pneumatic push rod 24, the two support legs 27 can be pushed by the support column 26 to rotate, thereby forcing the support foot 28 to drop to the surface of the drilling platform, and the positioning spring 29 can ensure that the angle of the support foot 28 remains relatively stable, which can ensure the fixation of the entire device and prevent it from moving at will. After the two positioning mechanisms 4 fix the drill pipe, the two sides of the device are fixed, which further improves the stability of the device.

[0023] A high-pressure water pump 11 is fixedly connected to the surface of the positioning seat 2, a water suction pipe 12 is connected to one side of the surface of the high-pressure water pump 11, a water injection pipe 13 is connected to the top of the high-pressure water pump 11, the other end of the water injection pipe 13 is connected to a cleaning box 14, a plurality of conduits 15 are fixedly connected to the interior of the cleaning box 14, the water injection pipe 13 extends to the surface of the interior of the cleaning box 14 and is connected to the conduit 15, a fan wheel 16 is rotatably connected to the bottom of the cleaning box 14, the other end of the conduit 15 is located at the top of the fan wheel 16, a linkage rod 17 is fixedly connected to the surface of the cleaning box 14, the output end of the motor 8 is fixedly connected to a transmission tooth 18 through a coupling, and the transmission tooth 18 is located below the gear plate 9, the transmission tooth 18 is meshed with the linkage rod 17, and the linkage rod 17 is slidably connected to the interior of the positioning seat 2.

[0024] Among them, through the connection effect between the high-pressure water pump 11 and the suction pipe 12, high-pressure water flow can be injected into the water injection pipe 13. When the fixed seat 3 is rotated from the lower drill rod to the unused drill rod, the meshing effect between the transmission gear 18 and the linkage rod 17 can force the cleaning box 14 to move to the top of the lower drill rod. After the high-pressure water flow in the water injection pipe 13 enters the cleaning box 14, it is diverted through the conduit 15. When the high-pressure water flow flows out of the conduit 15, the high-pressure thrust generated will push the fan wheel 16 to rotate, thereby forcing the high-pressure water flow to be rotated and discharged by the fan wheel 16, which can fully flush the internal thread at the lower drill rod interface to avoid mud and fine sand residue, facilitate the smoothness of subsequent docking thread fixation, and avoid damage to the threaded interface.

[0025] The interior of the positioning seat 2 is fixedly connected with a limiting slider 30, and the linkage rod 17 is slidably connected to the interior of the positioning seat 2 through the limiting slider 30, wherein the limiting slider 30 can facilitate the stable sliding of the linkage rod 17 and can limit and fix the linkage rod 17 to a certain extent to prevent it from detaching from the fixed seat 3.

[0026] The specific working principle and use method of the present invention are explained in detail below: When in use, the first step is to move the device between an unused drill rod and two used drill rods, and through the extension and contraction of the pneumatic push rod 24, the two support legs 27 can be pushed by the support column 26 to rotate, thereby forcing the support legs 28 to drop to the surface of the drilling platform, and the positioning spring 29 is used to ensure that the angle of the support legs 28 remains relatively stable, thereby fixing the entire device, and adjusting the specific working height of the fixing seat 3 and the positioning seat 2 through the lifting cylinder 23; In the second step, the two hydraulic cylinders 402 are extended and retracted to work, and the connecting plate 6 and the connecting block 7 are coordinated to drive the fixing clamp 401 to hinge and rotate until the drill pipe at the bottom after use and the unused drill pipe are clamped and fixed, and the high-pressure push rod 502 drives the connecting plate 19 to work, and the hinged action of the connecting rod 20 drives the positioning clamp arms 501 on both sides to fix the drill pipe at the top after use, and the drilling equipment itself is rotated to work, so as to force the used drill pipe to separate into two parts; In the third step, the motor 8 is used to drive the shifting gear plate 9 to rotate 180 degrees clockwise, thereby driving the fixing seat 3 to rotate 180 degrees clockwise through the gear ring 10, and rotating the upper drill rod to the top of the unused drill rod. The drilling equipment is used to rotate and work again to force the upper drill rod and the unused drill rod to be docked and installed. The assembled drill rod is lifted by the drilling equipment, and after the unused drill rod is lifted and completely suspended in the air, the assembled drill rod is clamped and fixed again by the positioning clamp arm 501 and the fixing clamp 401. The fixing seat 3 is used to work by the motor 8 and rotates 180 degrees in the opposite direction to the top of the lower drill rod, and then it can be accurately installed in position.

[0027] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A connection mechanism for oil extraction, comprising a support base (1), characterized in that: The top of the support base (1) is slidably connected to a positioning seat (2), the top of the positioning seat (2) is rotatably connected to a fixing seat (3), two positioning mechanisms (4) are symmetrically arranged on the surface of the positioning seat (2), and a fixing mechanism (5) is arranged inside the fixing seat (3); The positioning mechanism (4) comprises two fixing clamps (401) and a hydraulic cylinder (402), the two hydraulic cylinders (402) are symmetrically fixedly connected to the surface of the positioning seat (2), the telescopic ends of the hydraulic cylinders (402) are fixedly connected to a connecting plate (6), the two sides of the surface of the connecting plate (6) are symmetrically hinged with connecting blocks (7), the other end of the connecting block (7) is hinged to the fixing clamps (401), the two fixing clamps (401) are symmetrically hinged to the surface of the positioning seat (2), and the two fixing clamps (401) are respectively located on both sides of the hydraulic cylinder (402); The interior of the positioning seat (2) is fixedly connected to a motor (8), the output end of the motor (8) is fixedly connected to a gear shifting plate (9) via a coupling, the bottom of the fixed seat (3) is fixedly connected to a gear ring (10), the gear shifting plate (9) is rotatably connected to the interior of the gear ring (10), and the gear shifting plate (9) is meshed with the gear ring (10); A high-pressure water pump (11) is fixedly connected to the surface of the positioning seat (2), one side of the surface of the high-pressure water pump (11) is connected to a water suction pipe (12), the top of the high-pressure water pump (11) is connected to a water injection pipe (13), the other end of the water injection pipe (13) is connected to a cleaning box (14), a plurality of conduits (15) are fixedly connected to the inside of the cleaning box (14), the water injection pipe (13) extends to the surface inside the cleaning box (14) and is connected to the conduits (15), the bottom of the cleaning box (14) is rotatably connected to a fan wheel (16), the other end of the conduit (15) is located on the top of the fan wheel (16), the surface of the cleaning box (14) is fixedly connected to a linkage rod (17), the output end of the motor (8) is fixedly connected to a transmission tooth (18) through a coupling, and the transmission tooth (18) is located below the gear plate (9), the transmission tooth (18) is meshed with the linkage rod (17), and the linkage rod (17) is slidably connected to the inside of the positioning seat (2); The positioning mechanism (4) comprises two positioning clamping arms (501) and a high-pressure push rod (502), wherein the high-pressure push rod (502) is fixedly connected to the interior of the fixing seat (3), and the telescopic end of the high-pressure push rod (502) is fixedly connected to a connecting disk (19), and connecting rods (20) are symmetrically hinged on both sides of the surface of the connecting disk (19), and the other end of the connecting rod (20) is hinged to the positioning clamping arms (501), and the two positioning clamping arms (501) are symmetrically hinged to the interior of the fixing seat (3).

2. A connection mechanism for oil production according to claim 1, characterized in that: The two positioning clamp arms (501) are respectively located on two sides of the high-pressure push rod (502), and the surfaces of the two positioning clamp arms (501) on opposite sides are symmetrically rotatably connected to a transverse rotating block (21).

3. The connecting mechanism for oil production according to claim 1, characterized in that: The bottom of the support base (1) is rotatably connected to a moving wheel (22), and the interior of the support base (1) is symmetrically fixedly connected to four lifting cylinders (23), and the telescopic ends of the lifting cylinders (23) are fixedly connected to the bottom of the positioning seat (2).

4. A connection mechanism for oil production according to claim 3, characterized in that: The support base (1) is fixedly connected to a pneumatic push rod (24) inside, the telescopic end of the pneumatic push rod (24) is fixedly connected to a connecting strip (25), the bottom of the connecting strip (25) is symmetrically fixedly connected to two support columns (26), the bottom of the support column (26) is hinged with a support leg (27), the two support legs (27) are hinged to each other, and the support leg (27) is hinged to the inside of the support base (1).

5. A connection mechanism for oil production according to claim 4, characterized in that: A support foot (28) is hingedly connected to one end of the two support legs (27) that is away from each other, a positioning spring (29) is fixedly connected to the surface of the support foot (28), and the other end of the positioning spring (29) is fixedly connected to the inside of the support leg (27).

6. A connection mechanism for oil production according to claim 1, characterized in that: The interior of the positioning seat (2) is fixedly connected to a limiting slider (30), and the linkage rod (17) is slidably connected to the interior of the positioning seat (2) via the limiting slider (30).

Images