Locking device for petroleum drilling machine

Abstract

The utility model relates to the technical field of manufacturing of petroleum drilling and production equipment, and discloses a locking device for a petroleum drilling machine, which comprises a first locking seat, a first positioning pin, a locking pin, a locking nut, a second positioning pin and a second locking seat, the first locking seat is matched with the second locking seat, a spring mounting groove is arranged in the first locking seat, a spring is arranged in the spring mounting groove, and the locking pin is arranged in the locking nut. The spring is sleeved outside the lock pin; a mounting hole is formed in the contact surface of the first locking seat and the second locking seat, a second positioning pin is arranged in the mounting hole, one end of the second positioning pin is fixed in the hole in the second locking seat, and the other end of the second positioning pin is clamped with the hole in the first locking seat. By arranging a reasonable locking structure and an elastic buffering mechanism, the reliability and durability of the locking device are remarkably improved, the operation process is simplified, the maintenance cost is reduced, meanwhile, safety accidents caused by locking failure are effectively reduced, the operation efficiency and safety of the drilling machine are further improved, and the locking device is suitable for various complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling and production equipment manufacturing technology, specifically a locking device for oil drilling rigs. Background Technology

[0002] Oil drilling rigs are essential equipment used in oil exploration and extraction, playing a crucial role in engineering construction. Their primary function is to conduct drilling operations underground to locate and extract underground oil and gas resources. An oil drilling rig typically consists of various machines and equipment, possessing multiple functions, forming a combined working unit. Its main components include surface rotary feed equipment, circulation system equipment, hoisting system equipment, power drive equipment, transmission system equipment, control system and monitoring and display instruments, drilling rig base, and auxiliary equipment.

[0003] Currently, the existing technology to solve the problem of locking the blowout preventer (BOP) arm is to lock the BOP arm using lug pins. This process is labor-intensive, time-consuming, involves working at height, and poses safety hazards. It also results in high labor intensity for workers.

[0004] Therefore, this utility model provides a novel locking device for oil drilling rigs. Utility Model Content

[0005] The purpose of this utility model is to provide a locking device for oil drilling rigs, which solves the technical problems of complex, time-consuming and safety hazards in the locking process of blowout preventer arm in the prior art, and achieves the purpose of simplifying the operation process, improving safety and reducing labor intensity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a locking device for an oil drilling rig, comprising a locking seat one, a positioning pin one, a locking pin, a locking nut, a positioning pin two, and a locking seat two. The locking seat one and the locking seat two are adapted to each other. The locking seat one is provided with a spring mounting groove, and a spring is provided in the groove. The spring is sleeved on the outside of the locking pin. The contact surfaces of the locking seat one and the locking seat two are provided with mounting holes, and the positioning pin two is installed in the mounting holes. One end of the positioning pin two is fixed in the hole on the locking seat two, and the other end of the positioning pin two is engaged with the hole on the locking seat one to ensure precise positioning of the device.

[0007] Preferably, the end of the locking pin is provided with a pin hole, and a pull ring is provided through the pin hole.

[0008] Preferably, the locking pin is fixedly connected to the locking seat one by a locking nut, and the top end of the locking pin passes through the spring mounting groove and extends out of the spring mounting groove to contact the locking surface of the locking seat two, forming a stable locking structure.

[0009] Preferably, the lower end of the locking pin and the locking nut are provided with positioning pin grooves, which cooperate with the positioning pin one. The positioning pin one is inserted into the positioning pin grooves of the locking pin and the locking nut to ensure that the relative positions of the locking pin and the locking nut are fixed, thereby improving the overall stability and safety of the locking device and effectively preventing the drilling rig from sliding unexpectedly during operation.

[0010] Preferably, one end of the spring is fixedly connected to the locking pin, and the other end is in contact with the locking nut to form an elastic buffer structure, ensuring that the locking pin can automatically reset when subjected to external impact.

[0011] Preferably, it also includes a frame, pin one, pin two, hydraulic cylinder, pin three, and clamping arm.

[0012] Preferably, the clamping arm is mounted on the frame via pin two; the hydraulic cylinder is connected to the frame and the clamping arm via pin one and pin three respectively; locking seat one and locking seat two are welded to the left and right clamping arms respectively; the hydraulic cylinder drives the clamping arms to open and close, thereby achieving a tight fit between locking seat one and locking seat two.

[0013] This utility model provides a locking device for oil drilling rigs. It has the following advantages:

[0014] (1) By setting a reasonable locking structure and elastic buffer mechanism, this utility model significantly improves the reliability and durability of the locking device, simplifies the operation process, reduces maintenance costs, and effectively reduces safety accidents caused by locking failure, further improving the drilling efficiency and safety, and is suitable for a variety of complex working conditions.

[0015] (2) By optimizing the design of the locking seat and the positioning pin, this utility model ensures the stability of the device under different environments, improves the compactness and flexibility of the overall structure, and enables the device to maintain efficient operation under different working conditions. It significantly improves the safety and stability of drilling operations, reduces the difficulty of operation, and reduces the frequency of maintenance. Attached Figure Description

[0016] Figure 1 This is a perspective view of the locking device of this utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is an open view of the locking device of this utility model;

[0019] Figure 4 This is a view of the locking device of this utility model in its closed state.

[0020] In the diagram: 1. Locking seat 1, spring, 3. Positioning pin 1, pull ring 4, locking pin 5, locking nut 6, positioning pin 2, 7. Locking seat 2, 8. Frame 9, pin 1, 10. Pin 2, 11. Oil cylinder 12, pin 3, 13. Clamping arm 14. Detailed Implementation

[0021] 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.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] Example 1:

[0024] Based on the problems of complex, time-consuming, and safety hazards in the existing technology of blowout preventer arm locking process, the preferred embodiment of the locking device for oil drilling rigs provided by this utility model is as follows: Figures 1-4 As shown: A locking device for an oil drilling rig includes a locking seat 1, a positioning pin 3, a locking pin 5, a locking nut 6, a positioning pin 2 7, and a locking seat 2 8. The locking seats 1 and 2 are compatible. The locking seat 1 has a spring mounting groove, and a spring 2 is installed in the groove. The spring 2 is sleeved on the outside of the locking pin 5. The contact surfaces of the locking seats 1 and 2 are provided with mounting holes, and the positioning pin 2 7 is installed in the mounting holes. One end of the positioning pin 2 7 is fixed in the hole on the locking seat 2 8, and the other end of the positioning pin 2 7 is engaged with the hole on the locking seat 1 to ensure accurate positioning of the device.

[0025] The end of the locking pin 5 is provided with a pin hole, and a pull ring 4 is provided through the pin hole;

[0026] The locking pin 5 is fixedly connected to the locking seat 1 by the locking nut 6. The top end of the locking pin 5 passes through the spring mounting groove and extends out of the spring mounting groove, contacting the locking surface of the locking seat 8 to form a stable locking structure.

[0027] The lower end of the locking pin 5 and the locking nut 6 are both provided with positioning pin grooves, which cooperate with positioning pin 3. Positioning pin 3 is inserted into the positioning pin grooves of the locking pin 5 and the locking nut 6 to ensure that the relative positions of the locking pin 5 and the locking nut 6 are fixed, thereby improving the overall stability and safety of the locking device and effectively preventing the drilling rig from sliding unexpectedly during operation.

[0028] One end of the spring 2 is fixedly connected to the locking pin 5, and the other end is in contact with the locking nut 6, forming an elastic buffer structure to ensure that the locking pin 5 can automatically reset when subjected to external force.

[0029] In this embodiment, by setting a reasonable locking structure and elastic buffer mechanism, the reliability and durability of the locking device are significantly improved, the operation process is simplified, the maintenance cost is reduced, and the safety accidents caused by locking failure are effectively reduced, further improving the drilling rig's operating efficiency and safety, and making it suitable for a variety of complex working conditions.

[0030] Example 2:

[0031] Please see Figures 1-4 Furthermore, based on Embodiment 1, it is further obtained that: it also includes a frame 9, a first pin 10, a second pin 11, a hydraulic cylinder 12, a third pin 13, and a clamping arm 14;

[0032] The clamping arm 14 is mounted on the frame 9 via pin 2 11; the hydraulic cylinder 12 is connected to the frame 9 and the clamping arm 14 via pin 1 10 and pin 3 13 respectively; locking seat 1 and locking seat 2 8 are welded to the left and right clamping arms 14 respectively; the hydraulic cylinder 12 drives the clamping arm 14 to open and close, so as to achieve a tight fit between locking seat 1 and locking seat 2 8.

[0033] When in use, the first step is to push the left and right clamping arms 14 until the locking seat 2 8 and the locking pin seat 1 1 begin to contact.

[0034] Step 2: The hydraulic cylinder 12 continues to push the left and right clamping arms 14. After the inclined surface on the locking seat 2 8 presses down the locking pin 5, the locking seat 2 8 and the locking pin seat 1 are pushed into place under the guidance of the positioning pin 2 7.

[0035] Step 3: Lock pin 5 pops out under the action of spring 2 and gets stuck in the slot of locking seat 2 8.

[0036] At this point, the locking mechanism has completed its locking action. To open clamp arm 14, the locking mechanism must first be unlocked. The unlocking procedure is as follows:

[0037] Step 4: Pull the pull ring 4 down until the positioning pin 3 is completely disengaged from the locking nut 6, then rotate the pull ring 4 to rotate the locking pin 5 90 degrees.

[0038] Step 5: Loosen the pull ring 4 until the positioning pin 3 is stuck in the groove of the locking nut 6. At this point, the top of the locking pin 5 is retracted into the locking seat 1, the locking device is unlocked, and the oil cylinder retracts to drive the clamping arm to open.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A locking device for an oil drilling rig, comprising a locking seat (1), a positioning pin (3), a locking pin (5), a locking nut (6), a positioning pin (7), and a locking seat (8), characterized in that: The locking seat one (1) and locking seat two (8) are adapted to each other. The locking seat one (1) is provided with a spring mounting groove, and a spring (2) is provided in the groove. The spring (2) is sleeved on the outside of the locking pin (5). The locking seat one (1) and locking seat two (8) are provided with mounting holes in their contact surfaces, and positioning pin two (7) is installed in the mounting holes. One end of positioning pin two (7) is fixed in the hole on locking seat two (8), and the other end of positioning pin two (7) is engaged with the hole on locking seat one (1) to ensure accurate positioning of the device.

2. The locking device for an oil drilling rig according to claim 1, characterized in that: The end of the locking pin (5) is provided with a pin hole, and a pull ring (4) is provided through the pin hole.

3. The locking device for an oil drilling rig according to claim 1, characterized in that: The locking pin (5) is fixedly connected to the locking seat one (1) by the locking nut (6). The top end of the locking pin (5) passes through the spring mounting groove and extends out of the spring mounting groove, contacting the locking surface of the locking seat two (8) to form a stable locking structure.

4. The locking device for an oil drilling rig according to claim 1, characterized in that: The lower end of the locking pin (5) and the locking nut (6) are provided with positioning pin grooves, which cooperate with positioning pin one (3). Positioning pin one (3) is inserted into the positioning pin grooves of the locking pin (5) and the locking nut (6) to ensure that the relative positions of the locking pin (5) and the locking nut (6) are fixed, thereby improving the overall stability and safety of the locking device and effectively preventing the drilling rig from sliding unexpectedly during operation.

5. A locking device for an oil drilling rig according to claim 1, characterized in that: One end of the spring (2) is fixedly connected to the locking pin (5), and the other end is in contact with the locking nut (6) to form an elastic buffer structure, ensuring that the locking pin (5) can automatically reset when subjected to external force impact.

6. A locking device for an oil drilling rig according to claim 1, characterized in that: It also includes a frame (9), a first pin (10), a second pin (11), a hydraulic cylinder (12), a third pin (13), and a clamping arm (14).

7. A locking device for an oil drilling rig according to claim 6, characterized in that: The clamping arm (14) is mounted on the frame (9) via pin 2 (11); the oil cylinder (12) is connected to the frame (9) and the clamping arm (14) via pin 1 (10) and pin 3 (13) respectively; locking seat 1 (1) and locking seat 2 (8) are welded to the left and right clamping arms (14) respectively; the oil cylinder (12) drives the clamping arm (14) to open and close, so as to achieve a tight fit between locking seat 1 (1) and locking seat 2 (8).

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