Device for detecting straightened drill rod

By incorporating upper and lower detection components and a height adjustment drive mechanism into the drill pipe straightening detection device, the problem of insufficient accuracy in drill pipe straightening detection is solved, enabling precise detection of drill pipe bending and ensuring drill pipe quality.

CN223925704UActive Publication Date: 2026-02-17LUOYANG HURRICANE PETROLEUM MASCH CO LTD
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Patent Information

Application Number
CN202520533003.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-17
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The accuracy of the current drill pipe straightening test is insufficient, which cannot guarantee the straightening quality of the drill pipe and affects its use in subsequent drilling.

Method used

Design a drill pipe straightening inspection device, which uses upper and lower inspection components to detect the curvature of the drill pipe on the upper and lower horizontal planes respectively, and combines height adjustment and drive mechanism to achieve accurate inspection of drill pipes of different lengths.

Benefits of technology

It improves the accuracy of drill pipe inspection after straightening, ensures drill pipe quality, is applicable to the inspection of drill pipes of different lengths, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223925704U_ABST
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Abstract

The utility model discloses a drill rod straightened detection device, which comprises a detection mechanism, an upper detection assembly and a lower detection assembly, the upper detection assembly and the lower detection assembly are respectively used for detecting the bending degree of the upper surface and the lower surface of a straightened drill rod, and the upper detection assembly and the lower detection assembly respectively comprise a laser emitting end and a laser receiving end. The laser emitting ends and the laser receiving ends in the upper detection assembly and the lower detection assembly are symmetrically arranged relative to the drill rod; the height adjusting mechanism is connected with the detection mechanism, is symmetrically arranged on the two sides of the drill rod, and is used for installing an upper detection assembly and a lower detection assembly and adjusting the height positions of the upper detection assembly and the lower detection assembly according to the diameter of the drill rod to be detected; the driving mechanism is arranged at the lower end of the height adjusting mechanism. According to the detection device for the straightened drill rod, the bending degree of the straightened drill rod can be detected, whether the drill rod is completely straightened or not is judged, the detection accuracy is improved, and the use quality of the straightened drill rod is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of drill pipe processing technology, specifically a drill pipe straightening and testing device. Background Technology

[0002] Drill pipe is mainly used in the construction of deep wells, horizontal wells, and extended reach wells during the oil and gas exploration and development process.

[0003] Drill pipes are prone to bending due to high pressure during operation. To prevent them from being used again, they need to be straightened. Currently, drill pipes are straightened by manual hammering or hydraulic straightening. After straightening, the straightening is usually observed by visual inspection, which is prone to deviation and cannot guarantee the straightening quality of the drill pipe, thus affecting subsequent drilling use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a drill pipe straightening detection device that can detect the curvature of the drill pipe after straightening, determine whether the drill pipe is completely straightened, improve detection accuracy, ensure the quality of the drill pipe after straightening, and effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drill pipe straightening and testing device, comprising:

[0006] The testing mechanism includes an upper testing component and a lower testing component. The upper and lower testing components are used to detect the curvature of the upper and lower surfaces of the drill pipe after straightening. Both the upper and lower testing components include a laser emitting end and a laser receiving end. The laser emitting end and the laser receiving end in the upper and lower testing components are symmetrically arranged relative to the drill pipe.

[0007] A height adjustment mechanism, connected to the detection mechanism, is symmetrically arranged on both sides of the drill rod. It is used to install the upper detection component and the lower detection component, and to adjust the height position of the two components according to the diameter of the drill rod to be detected.

[0008] The drive mechanism, located at the lower end of the height adjustment mechanism, is used to control the movement of the detection mechanism along the length of the drill rod, thereby enabling the detection of the curvature of drill rods of different lengths after straightening.

[0009] As a preferred embodiment of this utility model, the height adjustment mechanism includes a stud, an adjusting nut, an upper mounting plate, and a lower mounting plate. The upper mounting plate and the lower mounting plate are respectively sleeved on the outer side of the stud. The lower mounting plate is located below the upper mounting plate. The upper mounting plate is used to install the upper detection component, and the lower mounting plate is used to install the lower detection component. Adjusting nuts are provided on both the upper and lower sides of the upper and lower mounting plates.

[0010] As a preferred technical solution of this utility model, a spacing measuring mechanism is provided between the upper mounting plate and the lower mounting plate to ensure that the distance between the laser beam emitted by the laser emitting end in the upper detection component and the laser beam emitted by the laser emitting end in the lower detection component is the same as the diameter of the drill rod.

[0011] As a preferred embodiment of this utility model, the spacing measuring mechanism includes a positioning rod and a sleeve. The positioning rod is fixed to one side of the lower surface of the upper mounting plate, and the sleeve is fixed to the corresponding position on the lower mounting plate. The positioning rod can pass through the sleeve, and the outer side of the positioning rod is provided with a scale.

[0012] As a preferred technical solution of this utility model, the drive mechanism includes a fixed box, a motor, a lead screw, and a moving block. The fixed box is fixed on the operating table and located on one side of the support seat for supporting the drill rod. The upper end of the fixed box has an opening. The lead screw is set inside the fixed box. One end of the lead screw is connected to the output end of the motor. The moving block is threadedly connected to the outer side of the lead screw. The stud is vertically fixed to the upper surface of the moving block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This drill rod straightening detection device is reasonably designed and ingeniously conceived. By setting up upper and lower detection components to detect the curvature of the upper and lower horizontal surfaces of the straightened drill rod respectively, the quality of the straightened drill rod can be accurately detected, improving the detection accuracy. By setting up a height adjustment mechanism, the height position of the upper and lower detection components can be adjusted according to the diameter of the drill rod. By setting up a drive mechanism, the detection mechanism can be controlled to move along the length of the drill rod to detect the curvature. It is suitable for the detection of drill rods of different lengths, greatly improving the convenience of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is the front view of the present utility model;

[0016] Figure 3 for Figure 2 The right view.

[0017] In the diagram: 1. Detection mechanism, 11. Upper detection component, 12. Lower detection component, 2. Height adjustment mechanism, 21. Stud, 22. Adjusting nut, 23. Upper mounting plate, 24. Lower mounting plate, 3. Drive mechanism, 31. Fixing box, 32. Motor, 33. Lead screw, 34. Moving block, 4. Spacing measurement mechanism, 41. Positioning rod, 42. Sleeve, 43. Scale, 5. Support base, 6. Operating table. Detailed Implementation

[0018] 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 (for ease of description and understanding, hereinafter referred to as...). Figure 2 (The above is described above). Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a drill pipe straightening detection device, including a detection mechanism 1, a height adjustment mechanism 2 and a drive mechanism 3;

[0020] The testing mechanism 1 includes an upper testing component 11 and a lower testing component 12. The upper testing component 11 and the lower testing component 12 are used to test the curvature of the upper and lower surfaces of the drill rod after straightening. Both the upper testing component 11 and the lower testing component 12 include a laser emitting end and a laser receiving end. The laser emitting end and the laser receiving end in the upper testing component 11 are located at the top and are symmetrically arranged to test the curvature of the upper horizontal surface of the drill rod. The laser emitting end and the laser receiving end in the lower testing component 12 are located at the bottom to test the curvature of the lower horizontal surface of the drill rod. If the laser beam emitted by the laser emitting end is received by the laser receiving end, it indicates that there is no curvature on the surface of the drill rod. If the laser beam emitted by the laser emitting end is not received by the laser receiving end, it indicates that the laser beam is blocked, indicating that there is curvature on the surface of the drill rod and the straightening is not thorough.

[0021] There are two height adjustment mechanisms 2, symmetrically arranged on both sides of the drill rod. Each mechanism includes a stud 21, an adjusting nut 22, an upper mounting plate 23, and a lower mounting plate 24. The upper mounting plate 23 and the lower mounting plate 24 are respectively sleeved on the outer side of the stud 21, and the lower mounting plate 24 is located below the upper mounting plate 23. The upper mounting plate 23 of the two height adjustment mechanisms 2 is used to install the laser emitting end and the laser receiving end in the upper detection component 11, and the lower mounting plate 24 is used to install the laser emitting end and the laser receiving end in the lower detection component 12. Adjusting nuts 22 are provided on both the upper and lower sides of the upper mounting plate 23 and the lower mounting plate 24. The adjusting nuts 22 are threaded to the outer side of the stud 21. The height positions of the upper detection component 11 and the lower detection component 12 are adjusted according to the diameter of the drill rod to be tested, and then locked and fixed with the adjusting nuts 22.

[0022] The drive mechanism 3 includes a fixed box 31, a motor 32, a lead screw 33, and a moving block 34. The fixed box 31 is fixed on the operating table 6 and located on one side of the support base 5 used to support the drill rod. The fixed box 31 is parallel to the drill rod after it is placed. The upper end of the fixed box 31 has an opening. The lead screw 33 is set inside the fixed box 31. One end of the lead screw 33 is connected to the output end of the motor 32. The moving block 34 is threaded to the outer side of the lead screw 33. The stud 21 is vertically fixed to the upper surface of the moving block 34. The motor 32 controls the lead screw 33 to rotate, thereby driving the moving block 34 to move, so that the detection mechanism 1 moves along the length direction of the drill rod, realizing the detection of the curvature of drill rods of different lengths after straightening.

[0023] The output terminals of the laser receivers in the upper detection component 11 and the lower detection component 12 are electrically connected to the input terminals of the external control unit to display the signal reception status. The output terminal of the external control unit is electrically connected to the input terminal of the motor 32.

[0024] Furthermore, in order to quickly adjust the vertical distance between the laser beam emitted by the laser emitting end in the upper detection component 11 and the laser beam emitted by the laser emitting end in the lower detection component 12 to be the same as the diameter of the drill rod, a distance measuring mechanism 4 is provided between the upper mounting plate 23 and the lower mounting plate 24.

[0025] Furthermore, the spacing measuring mechanism 4 includes a positioning rod 41 and a sleeve 42. The positioning rod 41 is fixed to one side of the lower surface of the upper mounting plate 23, and the sleeve 42 is fixed to the corresponding position on the lower mounting plate 24. The positioning rod 41 can pass through the sleeve 42. The outer side of the positioning rod 41 is provided with a scale 43. After determining the height position of one of the detection components, the height position of the other detection component can be quickly adjusted according to the scale on the positioning rod 41, which greatly improves the operating efficiency.

[0026] In use: Place the straightened drill rod onto the two support seats 5, with the bent side facing upwards. Then, adjust the height of the lower detection component 12 according to the height of the drill rod, ensuring that the laser emitted from the laser emitter in the lower detection component 12 is in contact with the lower horizontal plane of the drill rod, and that the laser receiver in the lower detection component 12 can receive the signal. Then, adjust the height of the upper detection component 11 according to the diameter of the drill rod, quickly adjusting using the scale 43 on the positioning rod 41. Rotate the adjusting nut 22 to fix the height positions of the upper detection component 11 and the lower detection component 12 respectively, so that... The laser emitted from the laser emitter in the upper detection component 11 is aligned with the upper horizontal surface of the drill rod, ensuring that the laser receiver in the upper detection component 11 can receive the signal. Then, the control motor 32 is started, driving the detection mechanism 1 to move along the length of the drill rod to detect the bending of the entire upper and lower horizontal plane of the drill rod. If the laser receivers in the upper detection component 11 and the lower detection component 12 continuously receive signals, it indicates that the drill rod is straightened successfully. If the laser receivers in the upper detection component 11 or the lower detection component 12 interrupt the signal reception, it indicates that there is bending in this part, and there is a defect in the straightening work, which requires re-straightening.

[0027] This invention improves testing efficiency and ensures testing quality by simultaneously detecting the curvature of the upper and lower horizontal surfaces of the straightened drill rod. It accurately judges the straightening quality of the drill rod without affecting its subsequent use.

[0028] 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 device for detecting a straightening of a drill pipe, characterized by: The utility model relates to a straightening degree detection device for drill pipe, which comprises the following parts: a detection mechanism (1) comprising an upper detection assembly (11) and a lower detection assembly (12), the upper detection assembly (11) and the lower detection assembly (12) are used for detecting the bending degree of the upper and lower drill pipes after straightening respectively, the upper detection assembly (11) and the lower detection assembly (12) both comprise a laser emitting end and a laser receiving end, and the laser emitting end and the laser receiving end in the upper detection assembly (11) and the lower detection assembly (12) are symmetrically arranged with respect to the drill pipe; a height adjusting mechanism (2) connected with the detection mechanism (1) and symmetrically arranged on both sides of the drill pipe, used for mounting the upper detection assembly (11) and the lower detection assembly (12) and adjusting the height positions of the two according to the diameter of the drill pipe to be detected; a driving mechanism (3) arranged at the lower end of the height adjusting mechanism (2) and used for controlling the detection mechanism (1) to move along the length direction of the drill pipe, so as to realize the detection of the bending degree of the drill pipe after straightening.

2. The device for detecting a straightened drill pipe according to claim 1, characterized in that: The height adjusting mechanism (2) comprises a stud (21), an adjusting nut (22), an upper mounting plate (23) and a lower mounting plate (24), the upper mounting plate (23) and the lower mounting plate (24) are respectively sleeved on the outer side of the stud (21), the lower mounting plate (24) is located below the upper mounting plate (23), the upper mounting plate (23) is used for mounting the upper detection assembly (11), the lower mounting plate (24) is used for mounting the lower detection assembly (12), and the upper mounting plate (23) and the lower mounting plate (24) are both provided with the adjusting nut (22) on the upper side and the lower side.

3. A device for detecting the straightening of a drill pipe according to claim 2, characterized in that: A spacing measuring mechanism (4) is arranged between the upper mounting plate (23) and the lower mounting plate (24) and used for ensuring that the spacing between the laser rays emitted by the laser emitting end in the upper detection assembly (11) and the laser emitting end in the lower detection assembly (12) is the same as the diameter of the drill pipe.

4. A device for detecting the straightening of a drill pipe according to claim 3, characterized in that: The spacing measuring mechanism (4) comprises a positioning rod (41) and a sleeve (42), the positioning rod (41) is fixed on one side of the lower surface of the upper mounting plate (23), the sleeve (42) is fixed on the corresponding position of the lower mounting plate (24), the positioning rod (41) can pass through the sleeve (42), and the outer side of the positioning rod (41) is provided with a scale (43).

5. The device for detecting a straightened drill pipe according to claim 2, characterized in that: The driving mechanism (3) comprises a fixed box (31), a motor (32), a lead screw (33) and a moving block (34), the fixed box (31) is fixed on an operation table (6) and located on one side of a supporting seat (5) used for supporting the drill pipe, the upper end of the fixed box (31) is provided with an opening, the lead screw (33) is arranged in the fixed box (31), one end of the lead screw (33) is connected with the output end of the motor (32), the moving block (34) is threadedly connected to the outer side of the lead screw (33), and the stud (21) is vertically fixed on the upper surface of the moving block (34).