Hydraulic separation type detachable centralizer for sucker rod

Abstract

The application discloses a hydraulic separation type detachable centralizer for oil sucker rod and relates to the technical field of centralizers, which comprises a fastening concave frame, a mounting mechanism is arranged in the fastening concave frame, and a stabilizing mechanism is arranged on one side of the mounting mechanism; the mounting mechanism comprises a transmission screw rod, a transmission rod is connected to one end of the transmission screw rod, a servo motor is mounted at one end of the transmission rod, a first threaded ring is arranged outside the transmission screw rod, and a first connecting branch plate is connected to one side of the bottom end of the first threaded ring. The mounting mechanism and the stabilizing mechanism are arranged to quickly extrude and centralize the oil sucker rod, the extrusion fixing does not need bolts, labor is saved, the upper and lower parts are installed together, installation efficiency is higher, installation is faster, operation is simple and easy to use, time and labor are saved, practicality is better, the stability of the bottom of the centralizer is effectively improved, stability is maintained, the centralizing effect is better, and the bottom stability is maintained.

Description

Technical Field

[0001] This invention relates to the field of centralizer technology, and more specifically, to a hydraulically detachable sucker rod centralizer. Background Technology

[0002] Centralizers are cementing tools. They are simple to manufacture, aesthetically pleasing, sturdy, durable, and have a large centralizing force. They overcome the shortcomings of traditional welded centralizers, which are prone to weld detachment. They are a type of centralizer that can ensure the quality of drilling and cementing. Centralizers can be divided into two main categories according to their style: elastic centralizers and rigid centralizers. Each style can be further subdivided. According to their material, they can be divided into cast steel, cast aluminum, resin, etc. They are generally used on hydraulically separated sucker rods for centralizing operations to maintain the stability of the hydraulically separated sucker rods and ensure stable oil pumping operations.

[0003] However, in actual use, when installing the sucker rod after disassembling a typical centralizer, workers need to align it and drive bolts into the upper and lower parts for installation. This installation method is not only unstable, but also cannot be carried out synchronously from top to bottom during the installation process, which effectively reduces the installation efficiency. Furthermore, the stability of the upper and lower parts needs to be maintained after installation, resulting in poor stability, low efficiency, and poor practicality. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide a hydraulically detachable sucker rod centralizer. By setting up an installation mechanism and a stabilizing mechanism, the installation is faster and more efficient, quicker to install, simpler and easier to operate, more time-saving and labor-saving, and effectively improves the stability of the centralizer bottom, maintaining stability and providing a better centralizing effect, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydraulically detachable sucker rod detachable stabilizer, comprising a fastening recess, wherein an installation mechanism is provided inside the fastening recess, and a stabilizing mechanism is provided on one side of the installation mechanism;

[0006] The installation mechanism includes a transmission screw, one end of which is connected to a transmission rod, and one end of the transmission rod is equipped with a servo motor. A first threaded ring is sleeved on the outside of the transmission screw. A first connecting support plate is connected to one side of the bottom of the first threaded ring. A threaded collar is connected to one side of the first connecting support plate. A connecting screw is disposed inside the threaded collar. One end of the connecting screw is connected to a first arc-shaped straightening plate. Embedded locking blocks are disposed at both ends of the first arc-shaped straightening plate. A second threaded ring is disposed on one side of the first threaded ring. A second connecting support plate is connected to one side of the second threaded ring. A connecting collar is connected to one side of the second connecting support plate. The connecting collar is internally threaded. The device has a threaded rod, one end of which is provided with a first compression straightening plate. Both ends of the first compression straightening plate are provided with embedding grooves. The bottom ends of the first arc-shaped straightening plate and the first compression straightening plate are provided with embedding slots. The bottom of the embedding slot is provided with a first embedding plate. The bottom end of the first embedding plate is connected to a first connecting plate. The bottom end of the first connecting plate is provided with multiple supporting elastic plates. The bottom end of the supporting elastic plates is connected to a second connecting plate. The bottom end of the second connecting plate is connected to a second embedding plate. The bottom end of the second embedding plate is provided with a second arc-shaped straightening plate. A connecting bolt is provided on one side of the second arc-shaped straightening plate. The other side of the second arc-shaped straightening plate is provided with a second compression straightening plate.

[0007] The stabilizing mechanism includes a concave support frame, which is fixedly connected to one side of the second arc-shaped straightening plate and located at the bottom of the connecting bolt. A support shaft is movably connected inside the concave support frame. A push rod is connected to one end of the support shaft. An electric cylinder is installed at one end of the push rod. A movable collar block is connected to the bottom end of the electric cylinder. A connecting concave frame is movably provided on the outside of one end of the movable collar block.

[0008] In a preferred embodiment, a pressure controller is installed above the fastening recess, an alarm is installed on one side of the pressure controller, a sensing groove is provided on the inner wall of the first arc-shaped straightening plate, a pressure sensor is provided inside the sensing groove, and a rotating block is connected to one end of the pressure sensor.

[0009] In a preferred embodiment, a pressure controller is installed above the fastening recess, and a stabilizing bracket is provided on one side of the servo motor. The stabilizing bracket is fixed to the servo motor by welding.

[0010] In a preferred embodiment, a plurality of embedded bolts are embedded on one side of the first arc-shaped straightening plate, and the embedded bolts are connected to the first arc-shaped straightening plate by threads.

[0011] In a preferred embodiment, threaded holes are provided through the exterior of the first and second embedded plates, and the number of threaded holes is set to 4.

[0012] In a preferred embodiment, a stabilizing collar is provided on the outside of the transmission rod, and the stabilizing collar is movably connected to the transmission rod.

[0013] In a preferred embodiment, the two ends of the transmission rod are welded and fixed to the transmission lead screw and the output end of the servo motor respectively. The transmission lead screw is connected to the first threaded ring by a thread, and the inner threads of the first threaded ring and the second threaded ring are arranged in opposite directions.

[0014] In a preferred embodiment, the inner wall of the threaded collar is connected to the outer side of the connecting screw by a thread, and the threaded collar is made of an alloy material.

[0015] In a preferred embodiment, the first embedding plate is engaged with the first arc-shaped straightening plate to which the embedding slot belongs, and the second embedding plate is engaged with the second arc-shaped straightening plate.

[0016] The technical effects and advantages of this invention are as follows:

[0017] By setting up an installation mechanism, the first embedded plate is installed on the second arc-shaped straightening plate, and the second embedded plate is directly inserted into the second arc-shaped straightening plate to quickly complete the positioning and locking, which also facilitates later disassembly. The servo motor connects the first compression straightening plate with the first arc-shaped straightening plate, and the embedded block begins to lock into the embedded groove. The second arc-shaped straightening plate and the second compression straightening plate lock into each other quickly, which quickly compresses and straightens the sucker rod without the need for bolts for compression and fixation, which saves more labor. The installation is faster and more efficient, and the operation is simple and easy to use, saving more time and effort and making it more practical.

[0018] By setting up a stabilizing mechanism, after installation, the electric cylinder is activated to drive the support rod. The second arc-shaped straightening plate and the second compression straightening plate compress and support each other, which effectively improves the stability of the bottom of the straightener, maintains stability, improves the straightening effect, and keeps the bottom stable.

[0019] During the initial compression and straightening process of the first arc-shaped straightening plate against the outside of the sucker rod, the force of the compression is transmitted to the pressure sensor and displayed on the pressure controller. This allows the system to detect the force of the compression sensor, and in the next compression operation, if the force exceeds the set pressure range, the alarm will be triggered. This controls the magnitude of the compression force each time, preventing excessive compression that could cause the first and second threaded rings to be over-compressed during the compression movement of the drive screw. It also reduces the risk of damage to the external threads of the drive screw, thus avoiding damage to the straightening device, reducing future maintenance costs, and increasing durability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a top-view three-dimensional structural diagram of the transverse cross-section of the present invention.

[0022] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point B.

[0024] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point C.

[0025] Figure 6 For the present invention Figure 2 Enlarged structural diagram at point D.

[0026] The attached figures are labeled as follows: 1. Fastening recess; 2. Transmission screw; 3. Transmission rod; 4. Servo motor; 5. First threaded ring; 6. First connecting support plate; 7. Threaded collar; 8. Connecting screw; 9. First arc-shaped straightening plate; 10. Embedded block; 11. Second threaded ring; 12. Second connecting support plate; 13. Connecting collar; 14. Threaded rod; 15. First compression straightening plate; 16. Embedded groove; 17. First embedded plate; 18. First connecting plate; 19. Supporting elastic plate ; 20. Second connecting plate; 21. Second embedded plate; 22. Second arc-shaped straightening plate; 23. Connecting bolt; 24. Concave support frame; 25. Support shaft; 26. Push support rod; 27. Electric cylinder; 28. Movable collar block; 29. ​​Connecting concave frame; 30. Alarm; 31. Pressure sensor; 32. Rotating block; 33. Stabilizing bracket; 34. Embedded bolt; 35. Threaded hole; 36. Stabilizing collar; 37. Second compression straightening plate; 38. Pressure controller. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] As attached Figure 1-6 The hydraulically detachable sucker rod detachable stabilizer shown includes a fastening recess 1, an installation mechanism is provided inside the fastening recess 1, and a stabilizing mechanism is provided on one side of the installation mechanism.

[0029] The mounting mechanism includes a transmission screw 2, one end of which is connected to a transmission rod 3. A servo motor 4 is mounted on one end of the transmission rod 3. A first threaded ring 5 is sleeved on the outside of the transmission screw 2. A first connecting support plate 6 is connected to one side of the bottom of the first threaded ring 5. A threaded collar 7 is connected to one side of the first connecting support plate 6. A connecting screw 8 is installed inside the threaded collar 7. One end of the connecting screw 8 is connected to a first arc-shaped straightening plate 9. Both ends of the first arc-shaped straightening plate 9 are provided with embedded locking blocks 10. A second threaded ring 11 is installed on one side of the first threaded ring 5. A second connecting support plate 12 is connected to one side of the second threaded ring 11. A connecting collar 13 is connected to one side of the second connecting support plate 12. A threaded rod 14 is threadedly connected inside the connecting collar 13. A first compression straightening plate 15 is provided at one end of the textured rod 14. Both ends of the first compression straightening plate 15 are provided with embedding grooves 16. The bottom ends of the first arc-shaped straightening plate 9 and the first compression straightening plate 15 are provided with embedding slots. A first embedding plate 17 is provided at the bottom of the embedding slots. A first connecting plate 18 is connected to the bottom end of the first embedding plate 17. Multiple supporting elastic plates 19 are provided at the bottom end of the first connecting plate 18. A second connecting plate 20 is connected to the bottom end of the supporting elastic plates 19. A second embedding plate 21 is connected to the bottom end of the second connecting plate 20. A second arc-shaped straightening plate 22 is provided at the bottom end of the second embedding plate 21. A connecting bolt 23 is provided on one side of the second arc-shaped straightening plate 22. A second compression straightening plate 37 is provided on the other side of the second arc-shaped straightening plate 22.

[0030] The stabilizing mechanism includes a concave support frame 24, which is fixedly connected to one side of the second arc-shaped straightening plate 22 and located at the bottom of the connecting bolt 23. A support shaft 25 is movably connected inside the concave support frame 24. A push support rod 26 is connected to one end of the support shaft 25. An electric cylinder 27 is installed at one end of the push support rod 26. A movable collar block 28 is connected to the bottom end of the electric cylinder 27. A connecting concave frame 29 is movably provided on the outside of one end of the movable collar block 28.

[0031] As attached Figure 1 and 3 As shown, a pressure controller 38 is installed above the fastening recess 1, and an alarm 30 is installed on one side of the pressure controller 38. A sensing groove is opened on the inner wall of the first arc-shaped straightening plate 9, and a pressure sensor 31 is installed inside the sensing groove. One end of the pressure sensor 31 is connected to a rotating block 32 so that when the first arc-shaped straightening plate 9 starts to squeeze and straighten the outside of the sucker rod, the squeezing force between them is transmitted to the pressure sensor 31 and displayed on the pressure controller 38 through the pressure sensor 31. In this way, the squeezing force can be known, so that if the squeezing force exceeds the set pressure range during the next squeezing use, the alarm 30 will be triggered. This can control the magnitude of the squeezing force each time and prevent excessive squeezing that causes the first threaded ring 5 and the second threaded ring 11 to be over-squeezed when the transmission screw 2 squeezes and moves.

[0032] As attached Figure 1 As shown, a stabilizing bracket 33 is provided on one side of the servo motor 4. The stabilizing bracket 33 is fixed to the servo motor 4 by welding so that the stabilizing bracket 33 can support and stabilize the servo motor 4, thereby maintaining the stable operation of the servo motor 4 and preventing it from shaking.

[0033] As attached Figure 3 As shown, multiple embedded bolts 34 are embedded on one side of the first arc-shaped straightening plate 9. The embedded bolts 34 are connected to the first arc-shaped straightening plate 9 by threads, so that when the first embedded plate 17 enters the embedded slot, the multiple embedded bolts 34 can be rotated to start the threaded connection with the first embedded plate 17, which can play a stabilizing role and facilitate positioning and snap-fit ​​installation.

[0034] As attached Figure 3 and 4 As shown, threaded holes 35 are provided through the exterior of the first embedded plate 17 and the second embedded plate 21. The number of threaded holes 35 is set to 4, so that multiple embedded bolts 34 and multiple connecting bolts 23 can be installed on the first embedded plate 17 and the second embedded plate 21 respectively for connection, so as to achieve firmness and stability.

[0035] As attached Figure 3 and 5 As shown, a stabilizing collar 36 is provided on the outside of the transmission rod 3. The stabilizing collar 36 is movably connected to the transmission rod 3 so that the stabilizing collar 36 can make the transmission rod 3 rotate stably during the rotation process. The stabilizing collar 36 plays a supporting and stabilizing role for the transmission rod 3.

[0036] As attached Figure 2 and 5 As shown, the two ends of the transmission rod 3 are welded and fixed to the transmission screw 2 and the output end of the servo motor 4 respectively. The transmission screw 2 is connected to the first threaded ring 5 by threads. The inner threads of the first threaded ring 5 and the second threaded ring 11 are arranged oppositely to facilitate the starting of the servo motor 4 to drive the transmission rod 3 to rotate. The transmission rod 3 drives the transmission screw 2 to rotate, and the transmission screw 2 drives the first threaded ring 5 and the second threaded ring 11 to move closer to each other. The forward and reverse rotation of the servo motor 4 can be controlled to achieve mutual approach and separation.

[0037] As attached Figure 2 and 5 As shown, the inner wall of the threaded collar 7 is connected to the outer side of the connecting screw 8 by threads. The threaded collar 7 is made of alloy material so that the connecting screw 8 can be separated from the threaded collar 7 by rotating the thread, which is convenient for disassembly and recycling. In addition, the alloy material makes it more durable.

[0038] As attached Figure 3 and 4 As shown, the first embedded plate 17 is engaged with the first arc-shaped straightening plate 9 to which the embedded slot belongs, and the second embedded plate 21 is engaged with the second arc-shaped straightening plate 22, so that the first embedded plate 17 can be inserted into the embedded slot. This allows the first embedded plate 17 to be engaged with the first arc-shaped straightening plate 9, and the second embedded plate 21 to be engaged with the second arc-shaped straightening plate 22, which facilitates later installation and disassembly.

[0039] The pressure controller model 38 is set as the GEFRAN-1200 pressure controller.

[0040] The pressure sensor model 31 is set as a GPT200 pressure sensor.

[0041] The working principle of this invention is as follows: During assembly, the second embedded plate 21 can be directly inserted into the second arc-shaped straightening plate 22, and the first embedded plate 17 is installed on the second arc-shaped straightening plate 22 by connecting bolts 23. The first arc-shaped straightening plate 9 and the first compression straightening plate 15 move downward together, so that the first embedded plate 17 begins to be inserted into the first arc-shaped straightening plate 9. The first embedded plate 17 is then installed and tightened by rotating the embedded bolts 34, thus quickly completing the assembly.

[0042] During installation and use, the first arc-shaped straightening plate 9 and the first compression straightening plate 15 are moved to the sides of the sucker rod, and the servo motor 4 is started to drive the transmission rod 3 to rotate. The transmission rod 3 drives the transmission screw 2 to rotate, and the transmission screw 2 drives the first threaded ring 5 to move to the right. The first threaded ring 5 drives the first connecting support plate 6 to move to the right. The first connecting support plate 6 drives the threaded collar 7 to move to the right. The threaded collar 7 drives the connecting screw 8 to move to the right. The connecting screw 8 drives the first arc-shaped straightening plate 9 to move to the right. The first arc-shaped straightening plate 9 drives the first embedded plate 17, causing the first connecting plate 18 to drive the multiple supporting elastic plates 19 to... The support plate 19 moves to the right, which drives the second connecting plate 20 to move the second embedded plate 21 to the right. The second embedded plate 21 drives the second arc-shaped straightening plate 22 to move to the right. At the same time, the second threaded ring 11 drives the second connecting support plate 12 to move the connecting sleeve 13 to the left. The connecting sleeve 13 drives the threaded rod 14 to move to the left. This allows the first compression straightening plate 15 to connect with the first arc-shaped straightening plate 9. At the same time, the embedded locking block 10 begins to engage with the embedded groove 16. Simultaneously, the second arc-shaped straightening plate 22 and the second compression straightening plate 37 at the bottom quickly engage, thereby quickly straightening the sucker rod.

[0043] When reinforcing the bottom, the electric cylinder 27 is activated to drive the push rod 26 to move. The push rod 26 drives the support shaft 25 to move to one side. The support shaft 25 supports and compresses the concave support frame 24, so that the second arc-shaped straightening plate 22 and the second compression straightening plate 37 can compress each other, further compressing the bottom of the straightener.

[0044] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0045] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0046] In conclusion, the above description is only a preferred embodiment of the present invention and is 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 within the protection scope of the present invention.

Claims

1. A hydraulically detachable sucker rod detachable stabilizer, comprising a fastening recess (1), characterized in that: The fastening recess (1) is provided with an installation mechanism inside, and a stabilizing mechanism is provided on one side of the installation mechanism; The installation mechanism includes a transmission screw (2), one end of which is connected to a transmission rod (3), and one end of which is equipped with a servo motor (4). A first threaded ring (5) is sleeved on the outside of the transmission screw (2). A first connecting support plate (6) is connected to one side of the bottom end of the first threaded ring (5). A threaded collar (7) is connected to one side of the first connecting support plate (6). A connecting screw (8) is provided inside the threaded collar (7). A first arc-shaped straightening plate (9) is connected to one end of the connecting screw (8). An embedded locking block (10) is provided at both ends of the first arc-shaped straightening plate (9). A second threaded ring (11) is provided on one side of the first threaded ring (5). A second connecting support plate (12) is connected to one side of the second threaded ring (11). A connecting collar (13) is connected to one side of the second connecting support plate (12). A threaded rod is threaded inside the connecting collar (13). (14) One end of the threaded rod (14) is provided with a first compression straightening plate (15). Both ends of the first compression straightening plate (15) are provided with embedding grooves (16). The bottom ends of the first arc-shaped straightening plate (9) and the first compression straightening plate (15) are provided with embedding slots. The bottom of the embedding slot is provided with a first embedding plate (17). The bottom end of the first embedding plate (17) is connected to a first connecting plate (18). The bottom end of the first connecting plate (18) is provided with a plurality of supporting elastic plates (19). The bottom end of the supporting elastic plate (19) is connected to a second connecting plate (20). The bottom end of the second connecting plate (20) is connected to a second embedding plate (21). The bottom end of the second embedding plate (21) is provided with a second arc-shaped straightening plate (22). A connecting bolt (23) is provided on one side of the second arc-shaped straightening plate (22). The other side of the second arc-shaped straightening plate (22) is provided with a second compression straightening plate (37). The stabilizing mechanism includes a concave support frame (24), which is fixedly connected to one side of the second arc-shaped straightening plate (22) and located at the bottom of the connecting bolt (23). A support shaft (25) is movably connected inside the concave support frame (24). A push rod (26) is connected to one end of the support shaft (25). An electric cylinder (27) is installed at one end of the push rod (26). A movable collar block (28) is connected to the bottom end of the electric cylinder (27). A connecting concave frame (29) is movably provided on the outside of one end of the movable collar block (28).

2. The hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: A pressure controller (38) is installed above the fastening recess (1), and an alarm (30) is installed on one side of the pressure controller (38). A sensing groove is opened on the inner wall of the first arc-shaped straightening plate (9), and a pressure sensor (31) is installed inside the sensing groove. One end of the pressure sensor (31) is connected to a rotating block (32).

3. The hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: A stabilizing bracket (33) is provided on one side of the servo motor (4), and the stabilizing bracket (33) is fixed to the servo motor (4) by welding.

4. A hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: Multiple embedded bolts (34) are embedded on one side of the first arc-shaped straightening plate (9), and the embedded bolts (34) are connected to the first arc-shaped straightening plate (9) by threads.

5. A hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: The first embedded plate (17) and the second embedded plate (21) have threaded holes (35) through them on the outside, and the number of threaded holes (35) is set to 4.

6. A hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: A stabilizing collar (36) is provided on the outside of the transmission rod (3), and the stabilizing collar (36) is movably connected to the transmission rod (3).

7. A hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: The two ends of the transmission rod (3) are welded and fixed to the transmission screw (2) and the output end of the servo motor (4) respectively. The transmission screw (2) is connected to the first threaded ring (5) by a thread. The inner wall threads of the first threaded ring (5) and the second threaded ring (11) are arranged oppositely.

8. A hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: The inner wall of the threaded collar (7) is connected to the outer side of the connecting screw (8) by threads, and the threaded collar (7) is made of alloy material.

9. A hydraulically detachable sucker rod detachable stabilizer according to claim 1, characterized in that: The first embedded plate (17) is engaged with the first arc-shaped straightening plate (9) to which the embedded slot belongs, and the second embedded plate (21) is engaged with the second arc-shaped straightening plate (22).

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