High-efficiency deviation-preventing guide device for sucker rod

Abstract

The utility model relates to oil extraction machinery technical field discloses a kind of efficient anti-eccentric wear sucker rod guiding device, including cylinder structure, first connecting structure and second connecting structure, first connecting structure and second connecting structure are respectively installed at both ends of cylinder structure, first connecting structure includes first connecting shaft and first outer connector, and one end of first connecting shaft is fixedly installed with first ball head, the inside of first outer connector is fixedly provided with the first guide rail that is compatible with first sliding slot, first connecting shaft is slidably connected by first sliding slot and first guide rail, and first outer connector is externally threaded with first fastening bolt, and the other end of first outer connector is fixedly installed with connecting sleeve, and the side wall of connecting sleeve is symmetrically provided with limit hole.The utility model supports the accurate adjustment of length direction, and in combination with the rotating cooperation of ball head and spherical groove, the multi-angle deflection of outer connector can be realized, and the hard friction between device and sucker rod is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil production machinery technology, and in particular to a high-efficiency anti-wear sucker rod guide device. Background Technology

[0002] High-efficiency anti-wear sucker rod guiding devices belong to the field of oilfield downhole equipment. They are used to provide directional support and guidance for the sucker rod during the oil extraction process of the pumping unit. When the sucker rod reciprocates in the wellbore, it needs to transmit power through the combined action of the casing, tubing, and downhole fluid in order to lift the crude oil from the bottom of the well to the surface. Therefore, maintaining the stable operation of the rod during the movement is of great significance for improving oil extraction efficiency and extending the service life of the oil production system.

[0003] In existing technologies, the length and deflection angle of the device cannot be flexibly adjusted, making it difficult to adapt to the deflection trajectory of the sucker rod. This can easily lead to hard friction and wear problems. It also results in poor flexibility in adapting to different well depth requirements and complicated installation and maintenance. Utility Model Content

[0004] In view of the above-mentioned problems that existing devices cannot flexibly adjust the length and deflection angle, are difficult to adapt to the deflection trajectory of the sucker rod, are prone to hard friction causing uneven wear, have poor flexibility to adapt to different well depth requirements, and are cumbersome to install and maintain, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-efficiency anti-wear sucker rod guide device, comprising a cylindrical structure, a first connecting structure, and a second connecting structure. The first connecting structure and the second connecting structure are respectively installed at both ends of the cylindrical structure. The first connecting structure includes a first connecting shaft and a first external connecting head. A first ball head is fixedly installed at one end of the first connecting shaft. A first guide rail adapted to a first sliding groove is fixedly provided inside the first external connecting head. The first connecting shaft is slidably connected to the first guide rail through the first sliding groove. A first fastening bolt is threaded on the outer wall of the first external connecting head. A connecting sleeve is fixedly installed at the other end of the first external connecting head. Limiting holes are symmetrically provided on the side wall of the connecting sleeve.

[0006] As a preferred embodiment of the high-efficiency anti-wear sucker rod guide device of this utility model, the cylindrical structure includes a cylindrical body, and the inner middle two ends of the cylindrical body are respectively provided with a first spherical groove and a second spherical groove. The inner side of the cylindrical body and the sides of the first spherical groove and the second spherical groove are provided with a trumpet-shaped cavity.

[0007] As a preferred embodiment of the high-efficiency anti-wear sucker rod guide device of this utility model, the first ball head is disposed inside the first spherical groove and is movably connected to the first spherical groove, the first sliding groove is symmetrically disposed on both sides of the first connecting shaft, and the end of the first connecting shaft away from the first ball head extends to the outside of the cylinder.

[0008] As a preferred embodiment of the high-efficiency anti-wear sucker rod guide device of this utility model, the second connecting structure includes a second connecting shaft and a second external connecting head. A second ball head is fixedly installed at one end of the second connecting shaft. The second ball head is disposed inside the second spherical groove and is movably connected to the second spherical groove.

[0009] As a preferred embodiment of the high-efficiency anti-wear sucker rod guide device of this utility model, the second connecting shaft is provided with second sliding grooves at both ends, the end of the second connecting shaft away from the second ball head extends to the outside of the cylinder, and the second outer connector is provided with second guide rails that are adapted to the second sliding grooves.

[0010] As a preferred embodiment of the high-efficiency anti-wear sucker rod guide device of this utility model, the second external connector has a second fastening bolt threaded on its side wall, a plug is fixedly installed at one end of the second external connector, mounting grooves are symmetrically arranged on both sides of the plug, a spring is fixedly installed in the mounting groove, a limit post is fixedly installed at the free end of the spring, and the limit post is slidably connected to the inner wall of the mounting groove.

[0011] As a preferred embodiment of the high-efficiency anti-wear sucker rod guide device of this utility model, the total length of the cylinder, the first outer connector and the second outer connector after splicing is 500mm, the outer diameter of the cylinder is 62mm, the outer diameter of the first outer connector is 52mm and the outer diameter of the second outer connector is 55mm.

[0012] The beneficial effects of this utility model are: 1. Through the sliding engagement of the first connecting shaft and the second connecting shaft with the first external connector and the second external connector respectively, precise adjustment in the length direction is supported. Combined with the rotational engagement of the ball head and the spherical groove, the external connector can be deflected at multiple angles, which can adapt to the deflection angle of the sucker rod during operation, effectively avoiding hard friction between the device and the sucker rod, thereby ensuring the stability of the anti-wear effect. 2. Through the plug-in splicing structure of the plug and connecting sleeve, combined with the elastic engagement of the spring-driven limiting post and the limiting hole, multiple devices can be quickly connected in series to flexibly adapt to different well depth requirements. The splicing is firm and the disassembly is convenient, reducing the difficulty of on-site installation and maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the cylindrical body of this utility model; Figure 3 This is a schematic diagram of the first external connector of this utility model; Figure 4 This is a schematic diagram of the second external connector of this utility model; Figure 5 for Figure 4 A magnified view of part A.

[0014] Explanation of reference numerals in the attached figures: 1. Cylindrical structure; 11. Cylindrical body; 12. First spherical groove; 13. Second spherical groove; 2. First connecting structure; 21. First connecting shaft; 22. First ball head; 23. First sliding groove; 24. First external connector; 25. First guide rail; 26. First fastening bolt; 27. Connecting sleeve; 28. Limiting hole; 3. Second connecting structure; 301. Second connecting shaft; 302. Second ball head; 303. Second sliding groove; 304. Second external connector; 305. Second guide rail; 306. Second fastening bolt; 307. Plug; 308. Mounting groove; 309. Spring; 310. Limiting post. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0016] Refer to attached figure Figure 1 - Appendix Figure 5 This utility model provides an efficient anti-wear sucker rod guide device, including a cylindrical structure 1, a first connecting structure 2, and a second connecting structure 3. The first connecting structure 2 and the second connecting structure 3 are respectively installed at both ends of the cylindrical structure 1. The cylindrical structure 1 includes a cylindrical body 11. The inner middle two ends of the cylindrical body 11 are respectively provided with a first spherical groove 12 and a second spherical groove 13. The inner side of the cylindrical body 11 and both sides of the first spherical groove 12 and the second spherical groove 13 are provided with a trumpet-shaped cavity, which expands from the inside to the outside.

[0017] The first connecting structure 2 includes a first connecting shaft 21 and a first external connecting head 24. A first ball head 22 is fixedly mounted on one end of the first connecting shaft 21. The first ball head 22 is disposed inside the first spherical groove 12 and is movably connected to the first spherical groove 12. First sliding grooves 23 are symmetrically arranged on both sides of the first connecting shaft 21. The end of the first connecting shaft 21 away from the first ball head 22 extends to the outside of the cylinder 11. The first connecting shaft 21 deflects within the first spherical groove 12 via the first ball head 22. The first external connecting head 24... 4 is located on the outside of the cylinder 11. The first external connector 24 is fixedly provided with a first guide rail 25 that is compatible with the first slide groove 23. The first connecting shaft 21 is slidably connected to the first guide rail 25 through the first slide groove 23. The first fastening bolt 26 is threaded on the outer wall of the first external connector 24. The first connecting shaft 21 is fixed and limited by the first fastening bolt 26. The other end of the first external connector 24 is fixedly installed with a connecting sleeve 27. The side wall of the connecting sleeve 27 is symmetrically provided with limit holes 28.

[0018] The second connecting structure 3 includes a second connecting shaft 301 and a second external connecting head 304. A second ball head 302 is fixedly mounted on one end of the second connecting shaft 301. The second ball head 302 is located inside the second spherical groove 13 and is movably connected to the second spherical groove 13. Second sliding grooves 303 are symmetrically arranged at both ends of the second connecting shaft 301. The end of the second connecting shaft 301 away from the second ball head 302 extends to the outside of the cylinder 11. The second connecting shaft 301 deflects within the second spherical groove 13 via the second ball head 302. Second guide rails 305, adapted to the second sliding grooves 303, are symmetrically fixedly arranged inside the second external connecting head 304. The second connecting shaft 301 is slidably connected to the second guide rails 305 via the second sliding grooves 303. A second fastening bolt 306 is threaded onto the side wall of the second external connecting head 304. Fastening bolt 306 limits and fixes the second connecting shaft 301. A plug 307 is fixedly installed at one end of the second external connector 304. The plug 307 is compatible with the connecting sleeve 27. The plug 307 has symmetrical mounting grooves 308 on both sides. A spring 309 is fixedly installed in the mounting groove 308. A limiting post 310 is fixedly installed at the free end of the spring 309. The limiting post 310 is slidably connected to the inner wall of the mounting groove 308. The limiting post 310 is compatible with the limiting hole 28. The plug 307 can be inserted into the connecting sleeve 27 for connection. The total length of the cylinder 11, the first external connector 24, and the second external connector 304 after splicing is about 500mm. The outer diameter of the cylinder 11 is 62mm, the outer diameter of the first external connector 24 is 52mm, and the outer diameter of the second external connector 304 is 55mm.

[0019] During use, the first connecting shaft 21 is installed inside the first outer connecting head 24 through the first sliding groove 23, and the second connecting shaft 301 is installed inside the second outer connecting head 304 through the second sliding groove 303. The first outer connecting head 24 and the second outer connecting head 304 can be adjusted according to the required length. After the position is determined, the first fastening bolt 26 and the second fastening bolt 306 are tightened to complete the limiting fixation. The first ball head 22 of the first connecting shaft 21 is in the first spherical groove 12, and the second ball head 302 of the second connecting shaft 301 is in the second spherical groove 13, which allows the first outer connecting head 24 and the second outer connecting head 304 to be deflected to match the deflection angle of the sucker rod. The horn-shaped cavity inside the cylinder 11 avoids motion interference. The plug 307 is inserted into the connecting sleeve 27, and the elasticity of the spring 309 pushes the limiting post 310 to slide into the limiting hole 28, so that multiple parts can be spliced ​​together. Finally, through multi-directional adjustment, the movement trajectory of the sucker rod is adapted to achieve a highly efficient anti-wear effect.

[0020] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-efficiency anti-wear sucker rod guide device, comprising a cylindrical structure (1), a first connecting structure (2), and a second connecting structure (3), characterized in that: The first connecting structure (2) and the second connecting structure (3) are respectively installed at both ends of the cylindrical structure (1). The first connecting structure (2) includes a first connecting shaft (21) and a first external connector (24). A first ball head (22) is fixedly installed at one end of the first connecting shaft (21). A first guide rail (25) adapted to the first slide groove (23) is fixedly installed inside the first external connector (24). The first connecting shaft (21) is slidably connected to the first guide rail (25) through the first slide groove (23). A first fastening bolt (26) is threaded on the outer wall of the first external connector (24). A connecting sleeve (27) is fixedly installed at the other end of the first external connector (24). Limiting holes (28) are symmetrically provided on the side wall of the connecting sleeve (27).

2. The high-efficiency anti-wear sucker rod guide device according to claim 1, characterized in that: The cylindrical structure (1) includes a cylindrical body (11), with a first spherical groove (12) and a second spherical groove (13) respectively provided at the middle two ends of the inner cavity of the cylindrical body (11), and a trumpet-shaped cavity provided inside the cylindrical body (11) and on both sides of the first spherical groove (12) and the second spherical groove (13).

3. The high-efficiency anti-wear sucker rod guide device according to claim 2, characterized in that: The first ball head (22) is located inside the first spherical groove (12) and is movably connected to the first spherical groove (12). The first sliding groove (23) is symmetrically arranged on both sides of the first connecting shaft (21). The end of the first connecting shaft (21) away from the first ball head (22) extends to the outside of the cylinder (11).

4. The high-efficiency anti-wear sucker rod guide device according to claim 3, characterized in that: The second connection structure (3) includes a second connecting shaft (301) and a second external connector (304). A second ball head (302) is fixedly installed at one end of the second connecting shaft (301). The second ball head (302) is located inside the second spherical groove (13) and is movably connected to the second spherical groove (13).

5. The high-efficiency anti-wear sucker rod guide device according to claim 4, characterized in that: The second connecting shaft (301) has two symmetrically arranged second sliding grooves (303) at both ends. The end of the second connecting shaft (301) away from the second ball head (302) extends to the outside of the cylinder (11). The second outer connector (304) has a second guide rail (305) that is compatible with the second sliding groove (303) symmetrically fixed inside.

6. The high-efficiency anti-wear sucker rod guide device according to claim 5, characterized in that: The second external connector (304) has a second fastening bolt (306) threaded on its side wall. A plug (307) is fixedly installed at one end of the second external connector (304). The plug (307) has mounting grooves (308) symmetrically arranged on both sides. A spring (309) is fixedly installed in the mounting groove (308). A limit post (310) is fixedly installed at the free end of the spring (309). The limit post (310) and the inner wall of the mounting groove (308) are slidably connected.

7. The high-efficiency anti-wear sucker rod guide device according to claim 6, characterized in that: The total length of the cylinder (11), the first external connector (24), and the second external connector (304) after splicing is 500mm. The outer diameter of the cylinder (11) is 62mm, the outer diameter of the first external connector (24) is 52mm, and the outer diameter of the second external connector (304) is 55mm.

Images