Reamer with guiding function

Abstract

The utility model is used for petroleum exploitation technical field discloses a kind of reamer with guiding function, including end cylinder, 2 the end cylinder between fixedly connected with function cylinder, the both ends outside surface of function cylinder is equipped with let hole, and function cylinder is installed with mounting rod by let hole clamping, and mounting rod is fixedly installed with function cylinder by fixed bolt, the inside surface of function cylinder is provided with guiding mechanism, and the contact with the inner wall of borehole in displacement process is realized to the guiding positioning of drill pipe.This reamer with guiding function, by setting guiding mechanism on the inside surface of function cylinder, guiding ball in guiding mechanism can contact with the inner wall of borehole in displacement process, realize the accurate guiding positioning of drill pipe, effectively avoid the deviation of drill pipe in borehole, compared with traditional reamer, can significantly improve the accuracy of reaming, so that the size of processed hole is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology, specifically a reamer with a guiding function. Background Technology

[0002] In the field of oil extraction technology, reaming is a crucial step in ensuring the normal operation and efficiency of extraction equipment. During actual extraction, precise reaming of various pipelines and equipment components ensures the sealing of connections, fitting accuracy, and overall stability of the equipment. However, existing reaming tools often present numerous problems during reaming operations. Some reamers lack effective guidance and positioning of the drill rod during the reaming process, causing the drill rod to easily shift within the borehole, making it difficult to guarantee reaming accuracy. This results in significant dimensional deviations in the machined holes, failing to meet the high-precision hole installation and usage requirements of oil extraction equipment. For example, in some oil transportation systems with extremely high pipeline connection accuracy requirements, insufficient hole precision can lead to poor sealing at the connection points, causing serious problems such as leaks. Utility Model Content

[0003] The purpose of this utility model is to provide a reamer with a guiding function to solve the problem mentioned in the background art, which is that insufficient drill rod guidance and positioning during the reaming process leads to low reaming accuracy and large deviation in the size of the machined hole, thus failing to meet the requirements for high-precision hole installation and use in oil extraction equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a reamer with a guiding function, comprising an end cylinder, a functional cylinder fixedly connected between two end cylinders, a clearance hole provided on the outer surface of both ends of the functional cylinder, and an installation rod being installed on the functional cylinder through the clearance hole, and the installation rod being fixedly installed on the functional cylinder by fixing bolts, and a guiding mechanism provided on the inner surface of the functional cylinder, which guides and positions the drill rod through contact with the inner wall of the borehole during displacement;

[0005] The guiding mechanism includes: a grinding wheel, which is rotatably mounted on the outer surface of the middle section of the mounting rod; a pressure tube is provided on the outer surface of the functional cylinder, with both ends of the pressure tube penetrating the inner and outer surfaces of the functional cylinder respectively; a liquid injection port is fixedly connected to one end of the pressure tube penetrating the outer surface of the functional cylinder, and a pressure cylinder is fixedly connected to one end of the pressure tube penetrating the inner surface of the functional cylinder; a central cylinder is fixedly provided inside the pressure cylinder, and the central cylinder is connected to the pressure tube; a sliding sliding rod is installed on the outer surface of the central cylinder, and a rotating guide ball is installed at one end of the sliding rod; a connecting rod is fixedly provided on the outer surface of the end of the sliding rod located inside the pressure cylinder; a stabilizing plate is provided inside the functional cylinder, and a connecting groove is formed on the outer surface of the stabilizing plate.

[0006] Preferably, the outer surface of the grinding wheel is fixedly provided with dot-shaped protrusions, and the outer surface of the grinding wheel protrudes from the outer surface of the functional cylinder, and the grinding wheel and the functional cylinder are in clearance fit.

[0007] By adopting the above technical solution, the dotted protrusions can enhance the grinding effect of the grinding wheel on the inner wall of the drill hole, enabling it to more effectively repair the uneven hole wall. The grinding wheel protrudes from the outer surface of the functional cylinder and is in clearance fit with the functional cylinder, which ensures that it can contact the hole wall for grinding operations, while avoiding interference with the functional cylinder, thus ensuring the smooth progress of the grinding work.

[0008] Preferably, one end of the pressure cylinder penetrates the outer surface of the functional cylinder, and the pressure cylinders are distributed at equal angles inside the functional cylinder.

[0009] By adopting the above technical solution, the pressure cylinder is distributed at equal angles inside the functional cylinder, which allows the guide balls to be evenly arranged around the circumference of the functional cylinder, thereby providing balanced support force during guidance and positioning, and improving the stability and accuracy of guidance.

[0010] Preferably, the central cylinder and the sliding rod are connected by sliding friction, and the guide ball is located at the end of the sliding rod facing the outside of the functional cylinder.

[0011] With the above technical solution, the central cylinder and the sliding rod are connected by sliding friction, which allows the sliding rod to slide stably on the outside of the central cylinder. This responds to pressure changes and enables the guide balls to extend and retract. The guide balls are located at the end of the sliding rod facing the outside of the functional cylinder and can directly contact the inner wall of the borehole. The guide balls guide and position the drill rod through rolling friction, reducing resistance and wear during the guiding process.

[0012] Preferably, one end of the connecting rod penetrates the outer surface of the pressure cylinder, and a connecting block is fixedly connected to the end of the connecting rod located outside the pressure cylinder.

[0013] With the above technical solution, one end of the connecting rod penetrates the outer surface of the pressure cylinder, which facilitates the transmission of the movement of the sliding rod to the connecting block, thereby achieving connection and cooperation with the stabilizing plate.

[0014] Preferably, the connecting block has a T-shaped design, and the connecting rod is slidably connected to the connecting groove through the connecting block.

[0015] By adopting the above technical solution, the T-shaped connecting block can form a stable sliding connection structure with the connecting groove. When the sliding rod moves, it can not only limit the movement of the sliding rod to prevent radial displacement, but also guide the movement of multiple sliding rods synchronously and uniformly through the stabilizing plate and the connecting groove, thereby enhancing the stability of the guiding mechanism.

[0016] Preferably, the stabilizing plate is annular in design, and the stabilizing plate and the functional cylinder are concentrically designed, with the connecting grooves set at equal angles on the outer surface of the stabilizing plate.

[0017] By adopting the above technical solution, the annular and concentrically designed stabilizing plate can ensure its coaxiality during installation inside the functional cylinder, and make the connecting grooves equally distributed around the circumference of the functional cylinder. Together with the connecting rod and connecting block, it can uniformly and stably constrain the movement of multiple guide balls, ensuring that the guide mechanism is subjected to balanced forces in all directions during operation, and further improving the overall working stability and guiding accuracy of the reamer.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the reamer with guiding function:

[0019] 1. By setting a guide mechanism on the inner surface of the functional cylinder, the guide balls in the guide mechanism can contact the inner wall of the borehole during the displacement process, so as to achieve precise guidance and positioning of the drill rod, effectively preventing the drill rod from shifting in the borehole. Compared with traditional reamers, it can significantly improve the accuracy of reaming, making the machined hole size more accurate, and meeting the requirements of oil extraction equipment for the installation and use of high-precision holes.

[0020] 2. The grinding wheel, which is rotatably mounted on the outer surface of the middle section of the mounting rod, has dotted protrusions on its outer surface that can grind and smooth the inner wall of the drilled hole during the reaming process. This solves the problem that existing reaming tools cannot handle uneven inner walls of drilled holes. The ground hole wall is smoother and flatter, reducing stress concentration caused by hole wall defects, extending the service life of equipment components, and also improving the installation compatibility of equipment components.

[0021] 3. The pressure regulating system consists of a pressure pipe, a liquid injection port, a pressure cylinder, and a central cylinder on the outside of the functional cylinder. Liquid is injected through the liquid injection port, and after passing through the pressure pipe and the central cylinder, it can generate pressure on the sliding rod where the guide balls are located, thus realizing the pressure regulating function. The cooperation of components such as the stabilizing plate, connecting groove, connecting rod, and connecting block makes the guiding mechanism more stable during operation. The ring design of the stabilizing plate is concentric with the functional cylinder, and the connecting grooves are distributed at equal angles. The connecting rod is slidably connected to the connecting groove through a T-shaped connecting block, ensuring the stability and uniformity of multiple guide balls during the guiding and grinding process, and improving the overall working stability of the reamer. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0024] Figure 3This is a three-dimensional structural diagram of the cross-sectional view connecting the functional cylinder, mounting rod, and grinding wheel of this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the connection between the functional cylinder, mounting rod, and grinding wheel of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the connection between the pressure tube, pressure cylinder, and central cylinder of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the sliding rod, connecting rod, and connecting block of this utility model.

[0028] In the diagram: 1. End cylinder; 2. Functional cylinder; 3. Clearance hole; 4. Mounting rod; 5. Fixing bolt; 6. Grinding wheel; 7. Pressurizing pipe; 8. Injection port; 9. Pressurizing cylinder; 10. Central cylinder; 11. Sliding rod; 12. Guide ball; 13. Connecting rod; 14. Connecting block; 15. Stabilizing plate; 16. Connecting groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6 This utility model provides a technical solution: a hole reamer with guiding function.

[0031] Example 1: This example discloses: an end cylinder 1, a functional cylinder 2 fixedly connected between the two end cylinders 1, a clearance hole 3 is provided on the outer surface of both ends of the functional cylinder 2, and an installation rod 4 is engaged with the functional cylinder 2 through the clearance hole 3, and the installation rod 4 is fixedly installed with the functional cylinder 2 by fixing bolts 5.

[0032] During installation, the drill rod passes through both ends of the end cylinder 1 and the functional cylinder 2, allowing the drill rod to drive the end cylinder 1 and the functional cylinder 2 to rotate synchronously. As the end cylinder 1 and the functional cylinder 2 rotate, the grinding wheel 6, which is installed on the outer surface of the functional cylinder 2 through the clearance hole 3, fixing bolt 5 and mounting rod 4, grinds the inner wall of the drilled hole, making the inner wall of the drilled hole smoother and ensuring the accuracy of the drilling.

[0033] Example 2: This example discloses, based on Example 1, that the inner surface of the functional cylinder 2 is provided with a guide mechanism, which guides and positions the drill rod through contact with the inner wall of the borehole during the displacement process;

[0034] The guiding mechanism includes: a grinding wheel 6, which is rotatably mounted on the outer surface of the middle section of the mounting rod 4; a pressure tube 7 is provided on the outer surface of the functional cylinder 2, and the two ends of the pressure tube 7 pass through the inner and outer surfaces of the functional cylinder 2 respectively; an injection port 8 is fixedly connected to one end of the pressure tube 7 that passes through the outer surface of the functional cylinder 2; a pressure cylinder 9 is fixedly connected to one end of the pressure tube 7 that passes through the inner surface of the functional cylinder 2; a central cylinder 10 is fixedly provided inside the pressure cylinder 9, and the central cylinder 10 is connected to the pressure tube 7; a sliding sliding rod 11 is installed on the outer surface of the central cylinder 10, and a rotating guide ball 12 is installed at one end of the sliding rod 11; a connecting rod 13 is fixedly provided on the outer surface of the end of the sliding rod 11 located inside the pressure cylinder 9; a stabilizing plate 15 is provided inside the functional cylinder 2, and a connecting groove 16 is opened on the outer surface of the stabilizing plate 15.

[0035] The outer surface of the grinding wheel 6 is fixedly provided with dot-shaped protrusions, and the outer surface of the grinding wheel 6 protrudes from the outer surface of the functional cylinder 2, and the grinding wheel 6 and the functional cylinder 2 are in clearance fit.

[0036] One end of the pressure cylinder 9 penetrates the outer surface of the functional cylinder 2, and the pressure cylinders 9 are distributed at equal angles inside the functional cylinder 2;

[0037] The central cylinder 10 and the sliding rod 11 are connected by sliding friction, and the guide ball 12 is located at the end of the sliding rod 11 facing the outside of the functional cylinder 2;

[0038] One end of the connecting rod 13 penetrates the outer surface of the pressure cylinder 9, and the end of the connecting rod 13 located outside the pressure cylinder 9 is fixedly connected to the connecting block 14;

[0039] The connecting block 14 has a T-shaped design, and the connecting rod 13 is slidably connected to the connecting groove 16 through the connecting block 14;

[0040] The stabilizing plate 15 is a ring-shaped design, and the stabilizing plate 15 and the functional cylinder 2 are concentrically designed. The connecting groove 16 is set at equal angles on the outer surface of the stabilizing plate 15.

[0041] During the drilling process, hydraulic oil is injected into the pressure tube 7 through the injection port 8. As the hydraulic oil is injected, the pressure inside the central cylinder 10 increases. The central cylinder 10 pushes the sliding rod 11 to slide relative to the pressure tube 9 through the pressure, so that the guide ball 12 is driven to slide out of the pressure tube 9 and contact the inner wall of the borehole. Thus, the guide ball 12 is guided and centered by contacting the inner wall of the borehole with the inner wall of the borehole.

[0042] During the sliding motion of the sliding rod 11, the connecting rod 13 slides synchronously relative to the stabilizing plate 15 through the connecting block 14 and the connecting groove 16. The stabilizing plate 15 limits the connecting rod 13, so that multiple sliding rods 11 can maintain the same degree of extension when subjected to different pressures, further ensuring the stability of the guide centering.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reamer with a guiding function, comprising end cylinders (1), two end cylinders (1) being fixedly connected to a functional cylinder (2), wherein the outer surfaces of both ends of the functional cylinder (2) are provided with clearance holes (3), and an mounting rod (4) is engaged with the functional cylinder (2) through the clearance holes (3), and the mounting rod (4) is fixedly installed to the functional cylinder (2) by fixing bolts (5), characterized in that: The inner surface of the functional cylinder (2) is provided with a guide mechanism, which guides and positions the drill rod by contacting the inner wall of the borehole during the displacement process. The guiding mechanism includes: a grinding wheel (6), which is rotatably mounted on the outer surface of the middle section of the mounting rod (4); a pressure tube (7) is provided on the outer surface of the functional cylinder (2), and both ends of the pressure tube (7) penetrate the inner and outer surfaces of the functional cylinder (2), respectively; an injection port (8) is fixedly connected to one end of the pressure tube (7) penetrating the outer surface of the functional cylinder (2), and a pressure cylinder (9) is fixedly connected to one end of the pressure tube (7) penetrating the inner surface of the functional cylinder (2); the inner surface of the pressure cylinder (9)... A central cylinder (10) is fixedly installed in the part, and the central cylinder (10) is connected to the pressurizing pipe (7). A sliding sliding rod (11) is installed on the outer surface of the central cylinder (10), and a rotating guide ball (12) is installed at one end of the sliding rod (11). A connecting rod (13) is fixedly installed on the outer surface of the sliding rod (11) located inside the pressurizing cylinder (9). A stabilizing plate (15) is installed inside the functional cylinder (2), and a connecting groove (16) is opened on the outer surface of the stabilizing plate (15).

2. A reamer with guiding function according to claim 1, characterized in that: The outer surface of the grinding wheel (6) is fixedly provided with dot-shaped protrusions, and the outer surface of the grinding wheel (6) protrudes from the outer surface of the functional cylinder (2), and the grinding wheel (6) and the functional cylinder (2) are in clearance fit.

3. A reamer with guiding function according to claim 1, characterized in that: One end of the pressure cylinder (9) penetrates the outer surface of the functional cylinder (2), and the pressure cylinder (9) is distributed at equal angles inside the functional cylinder (2).

4. A reamer with guiding function according to claim 1, characterized in that: The central cylinder (10) and the sliding rod (11) are connected by sliding friction, and the guide ball (12) is located at the end of the sliding rod (11) facing the outside of the functional cylinder (2).

5. A reamer with guiding function according to claim 1, characterized in that: One end of the connecting rod (13) penetrates the outer surface of the pressure cylinder (9), and a connecting block (14) is fixedly connected to the end of the connecting rod (13) located outside the pressure cylinder (9).

6. A reamer with guiding function according to claim 5, characterized in that: The connecting block (14) is T-shaped, and the connecting rod (13) is slidably connected to the connecting groove (16) through the connecting block (14).

7. A reamer with guiding function according to claim 1, characterized in that: The stabilizing plate (15) is annular and the stabilizing plate (15) and the functional cylinder (2) are concentric. The connecting groove (16) is set at equal angles on the outer surface of the stabilizing plate (15).

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