Petroleum drilling drill rod connecting device
By using a motor-driven bidirectional threaded rod and an auxiliary limiting mechanism, the problem of difficult alignment in drill rod connection is solved, achieving fast and stable drill rod connection and adapting to the connection needs of drill rods of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAICHENG JULONG MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, it is difficult to align the same horizontal plane during the connection process of oil drilling drill pipes, resulting in low connection efficiency.
The system employs a motor-driven bidirectional threaded rod and an auxiliary limiting mechanism. The threaded rod drives the clamping frame to align the drill rod, while the limiting support roller ensures the stability of the drill rod. An electric telescopic rod is used to adjust the height of the limiting support roller to accommodate drill rods of different sizes.
It enables rapid alignment and stable support of drill pipes, improving the efficiency and stability of drill pipe connections and adapting to the connection needs of drill pipes of different sizes.
Smart Images

Figure CN224187512U_ABST
Abstract
Description
A drill pipe connection device for oil drilling Technical Field
[0001] This utility model relates to the field of drill pipe auxiliary connection technology, and more specifically, to an oil drilling drill pipe connection device. Background Technology
[0002] Oil drilling drill pipe is one of the core tools used in oil drilling operations to transmit power and stabilize the drill bit. It is usually composed of a series of steel pipes connected by connectors to form a whole so as to withstand the huge pressure and torque during the drilling process. The main function of the drill pipe is to transmit the power of the drilling equipment from the surface to the well, while maintaining the stability of the wellbore during the drilling process.
[0003] In the current process of connecting two drill rods, the two drill rods are simply laid flat and then joined together. In this process, it is difficult to align the two drill rods, meaning that it is impossible to ensure that the two drill rods are on the same horizontal plane during the connection process, thus failing to increase the connection efficiency. Summary of the Invention
[0004] To overcome the above deficiencies, this utility model provides an oil drilling drill pipe connection device that overcomes or at least partially solves the above technical problems.
[0005] This utility model is implemented as follows:
[0006] This utility model provides an oil drilling drill pipe connection device, including an equipment box, a top plate fixedly installed on the top surface of the equipment box, two movable frames provided on the top surface of the top plate, a clamping frame fixedly installed on the top surface of each of the two movable frames, a through groove opened in the middle of the top surface of the top plate, and auxiliary limiting mechanisms provided on both sides of the equipment box.
[0007] The through slot has two locking blocks that are movably engaged inside. Each locking block has a threaded hole inside, and a bidirectional threaded rod is threaded into the threaded hole. The movable frame is fixedly connected to the two locking blocks respectively.
[0008] In a preferred embodiment, a motor is fixedly mounted on the bottom surface of the top plate, and the output end of the motor is fixedly connected to one end of a bidirectional threaded rod.
[0009] In a preferred embodiment, a plurality of elastic paddles are fixedly installed on one side surface of the clamping frame, and a cleaning block is fixedly installed on one end of each of the plurality of elastic paddles.
[0010] In a preferred embodiment, the auxiliary limiting mechanism includes a mounting frame, which is fixedly mounted on one side of the top plate. A rotating shaft is rotatably mounted inside the mounting frame. Two support frames are fixedly connected to the outer surface of the rotating shaft. A mounting shaft is fixedly connected between the two support frames. A limiting support roller is rotatably sleeved on the outer surface of the mounting shaft.
[0011] In a preferred embodiment, a mounting plate is fixedly installed on the bottom surface of the support frame, a fixed shaft is fixedly connected to the inner side of the mounting plate, a socket is rotatably installed on the outer surface of the fixed shaft, and an electric telescopic rod is provided between the socket and one side surface of the equipment box.
[0012] In a preferred embodiment, one end of the electric telescopic rod is fixedly connected to one side surface of the socket, and the other end of the electric telescopic rod is movably connected to one side surface of the equipment box.
[0013] In a preferred embodiment, a protective sleeve, which is a rubber pad, is fixedly fitted onto the outer surface of the limiting support roller.
[0014] In a preferred embodiment, support legs are fixedly installed at the four corners of the bottom surface of the equipment box.
[0015] The beneficial effects of the oil drilling drill pipe connection device provided by this utility model include:
[0016] 1. By setting up a motor and controlling its start, the motor can drive the bidirectional threaded rod to rotate during startup. Since the bidirectional threaded rod is threaded inside the threaded hole, when the bidirectional threaded rod rotates, it can drive the two clamping blocks to move towards each other. This also drives the two moving frames and the clamping frame to move towards each other on the top surface of the top plate until one end of the drill rod held inside the two clamping frames contacts each other, thus connecting the two drill rods and achieving the purpose of quickly connecting the drill rods.
[0017] 2. By setting an auxiliary limiting mechanism, after the drill rod is inserted into the clamping frame, the height of the limiting support roller at one end of the support frame can be changed by controlling the extension and retraction of the electric telescopic rod. When the height of the limiting support roller contacts the outer surface of the drill rod, auxiliary support for the drill rod can be achieved, ensuring the stability of the drill rod during the connection process of long drill rods, thereby further improving the connection effect of the drill rod. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 is an overall perspective view provided by an embodiment of the present utility model;
[0020] Figure 2 is a schematic diagram of the overall front view structure provided by the embodiment of this utility model;
[0021] Figure 3 is a schematic diagram of the auxiliary limiting mechanism provided in the embodiment of this utility model;
[0022] Figure 4 is a schematic diagram of the overall side view structure provided by the embodiment of this utility model.
[0023] In the diagram: 1. Equipment box; 2. Top plate; 3. Moving frame; 4. Clamping frame; 5. Through slot; 6. Elastic lever; 7. Cleaning block; 8. Auxiliary limiting mechanism; 801. Mounting frame; 802. Rotating shaft; 803. Support frame; 804. Mounting plate; 805. Fixed shaft; 806. Socket frame; 807. Electric telescopic rod; 808. Mounting shaft; 809. Limiting support roller; 810. Protective sleeve; 9. Support leg; 10. Snap-fit block; 11. Two-way threaded rod; 12. Motor. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. 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.
[0025] Referring to Figures 1-4, this utility model provides a technical solution: an oil drilling drill pipe connection device, including an equipment box 1, a top plate 2 fixedly installed on the top surface of the equipment box 1, two movable frames 3 provided on the top surface of the top plate 2, a clamping frame 4 fixedly installed on the top surface of each of the two movable frames 3, a through groove 5 opened in the middle of the top surface of the top plate 2, auxiliary limiting mechanisms 8 provided on both sides of the equipment box 1, and support legs 9 fixedly installed at the four corners of the bottom surface of the equipment box 1. Through the equipment box 1, the device as a whole can be more stable in actual use.
[0026] The through slot 5 has two movable locking blocks 10, each with a threaded hole. A bidirectional threaded rod 11 is threaded into each threaded hole. The movable frame 3 is fixedly connected to each of the two locking blocks 10. A motor 12 is fixedly mounted on the bottom surface of the top plate 2. The output end of the motor 12 is fixedly connected to one end of the bidirectional threaded rod 11. During the connection of the two drill rods, the two drill rods are first placed inside the clamping frame 4 for fixed clamping. Then, the motor 12 is started. During the starting process of the motor 12... The double-threaded rod 11 can be driven to rotate. Since the double-threaded rod 11 is threaded inside the threaded hole, when the double-threaded rod 11 rotates, it can drive the two clamping blocks 10 to move towards each other. This can also drive the two moving frames 3 and the clamping frame 4 to move towards each other on the top surface of the top plate 2. After one end of the drill rod held inside the two clamping frames 4 contacts, the two drill rods can be connected. This achieves the purpose of quickly connecting the drill rods and ensures that the drill rods are always in a parallel state during the connection process, thus improving the efficiency of drill rod connection.
[0027] Multiple elastic paddles 6 are fixedly installed on one side surface of the clamping frame 4. A cleaning block 7 is fixedly installed on one end of each elastic paddle 6. Through the elastic paddles 6 and the cleaning block 7, when the drill rod is inserted into the interior of the clamping frame 4, the elasticity of the elastic paddles 6 allows the cleaning block 7 to fit tightly against the outer surface of the drill rod. Therefore, during the insertion of the drill rod, the cleaning block 7 cleans the outer surface of the drill rod.
[0028] The auxiliary limiting mechanism 8 includes a mounting frame 801, which is fixedly installed on one side of the top plate 2. A rotating shaft 802 is rotatably mounted inside the mounting frame 801. Two support frames 803 are fixedly connected to the outer surface of the rotating shaft 802. A mounting shaft 808 is fixedly connected between the two support frames 803. A limiting support roller 809 is rotatably sleeved on the outer surface of the mounting shaft 808. Mounting plates 804 are fixedly mounted on the bottom surface of each support frame 803. A fixed shaft 805 is fixedly connected to the inner side of the mounting plate 804. A connecting frame 806 is rotatably mounted on the outer surface of the fixed shaft 805. An electric telescopic rod 807 is provided between the connecting frame 806 and one side surface of the equipment box 1. One end of the electric telescopic rod 807 is connected to one end of the connecting frame 806. The electric telescopic rod 807 is fixedly connected to the side surface, and the other end of the electric telescopic rod 807 is movably connected to one side surface of the equipment box 1. After the drill rod is inserted into the clamping frame 4, the height of the limiting support roller 809 at one end of the support frame 803 can be changed by controlling the extension and retraction of the electric telescopic rod 807. When the height of the limiting support roller 809 contacts the outer surface of the drill rod, auxiliary support for the drill rod can be achieved, ensuring the stability of the drill rod during the connection of long drill rods, thereby further improving the connection effect of the drill rod. Furthermore, by controlling the extension and retraction of the electric telescopic rod 807, the height of the limiting support roller 809 can be changed, thus enabling auxiliary support for drill rods of different sizes, thereby further improving the connection effect of the drill rod.
[0029] A protective sleeve 810 is fixedly sleeved on the outer surface of the limiting support roller 809. The protective sleeve 810 is a rubber pad. Through the setting of the protective sleeve 810, during the process of supporting the drill rod, the protective sleeve 810 contacts the outer surface of the drill rod, which can effectively protect the drill rod and prevent the drill rod from making direct contact with the limiting support roller 809.
[0030] Specifically, the working process or working principle of this oil drilling drill pipe connection device is as follows: During use, the motor 12 is started by controlling it. During the start-up process of the motor 12, the bidirectional threaded rod 11 can be rotated. Since the bidirectional threaded rod 11 is threaded inside the threaded hole, when the bidirectional threaded rod 11 rotates, it can drive the two clamping blocks 10 to move towards each other. This can also drive the two moving frames 3 and the clamping frame 4 to move towards each other on the top surface of the top plate 2 until one end of the drill pipe held inside the two clamping frames 4 contacts each other, and then the two drill pipes can be connected. After the drill pipe is inserted into the inside of the clamping frame 4, the height of the limiting support roller 809 at one end of the support frame 803 can be changed by controlling the extension and retraction of the electric telescopic rod 807. When the height of the limiting support roller 809 contacts the outer surface of the drill pipe, it can provide auxiliary support for the drill pipe, thus ensuring the stability of the drill pipe during the connection process of long drill pipes.
[0031] It should be noted that the electric telescopic pole 807 and the motor 12 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. Their power supply, specific composition and principle are clear to those skilled in the art, so they will not be described in detail here.
Claims
1. An oil drilling drill pipe connection device, comprising an equipment box (1), characterized in that, The top surface of the equipment box (1) is fixedly installed with a top plate (2). The top surface of the top plate (2) is provided with two movable frames (3). The top surfaces of the two movable frames (3) are fixedly installed with clamping frames (4). A through groove (5) is opened in the middle of the top surface of the top plate (2). Auxiliary limiting mechanisms (8) are provided on both sides of the equipment box (1). Two locking blocks (10) are movably engaged inside the through groove (5). The two locking blocks (10) are both provided with threaded holes. A two-way threaded rod (11) is threaded inside the threaded hole. The movable frame (3) is fixedly connected to the two locking blocks (10) respectively.
2. The oil drilling drill pipe connection device according to claim 1, characterized in that, A motor (12) is fixedly installed on the bottom surface of the top plate (2), and the output end of the motor (12) is fixedly connected to one end of the bidirectional threaded rod (11).
3. The oil drilling drill pipe connection device according to claim 2, characterized in that, Multiple elastic paddles (6) are fixedly installed on one side surface of the clamping frame (4), and a cleaning block (7) is fixedly installed on one end of each of the multiple elastic paddles (6).
4. The oil drilling drill pipe connection device according to claim 3, characterized in that, The auxiliary limiting mechanism (8) includes a mounting frame (801), which is fixedly installed on one side of the top plate (2). A rotating shaft (802) is rotatably installed inside the mounting frame (801). Two support frames (803) are fixedly connected to the outer surface of the rotating shaft (802). An installation shaft (808) is fixedly connected between the two support frames (803). A limiting support roller (809) is rotatably sleeved on the outer surface of the installation shaft (808).
5. The oil drilling drill pipe connection device according to claim 4, characterized in that, The bottom surface of the support frame (803) is fixedly installed with an mounting plate (804). The inner side of the mounting plate (804) is fixedly connected with a fixed shaft (805). The outer surface of the fixed shaft (805) is rotatably installed with a socket (806). An electric telescopic rod (807) is provided between the socket (806) and one side surface of the equipment box (1).
6. The oil drilling drill pipe connection device according to claim 5, characterized in that, One end of the electric telescopic rod (807) is fixedly connected to one side surface of the socket (806), and the other end of the electric telescopic rod (807) is movably connected to one side surface of the equipment box (1).
7. The oil drilling drill pipe connection device according to claim 6, characterized in that, The outer surface of the limiting support roller (809) is fixedly fitted with a protective sleeve (810), which is a rubber pad.
8. The oil drilling drill pipe connection device according to claim 7, characterized in that, Support legs (9) are fixedly installed at the four corners of the bottom surface of the equipment box (1).