A drill pipe disassembly apparatus
By designing a drill pipe disassembly device, which utilizes clamping and rotating mechanisms to achieve automatic disassembly of drill pipes, the problems of high difficulty and safety hazards in drill pipe disassembly are solved, and the applicability and safety of the equipment are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZUANTONGCONSTRUCTION MASCH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-02
AI Technical Summary
Disassembling the drill pipe is difficult and poses safety hazards.
A drill pipe disassembly device was designed, comprising a frame, slide rail, mounting base, clamping mechanism, rotating mechanism and hydraulic rod, which realizes automatic disassembly of drill pipe through automated clamping and rotating operations.
It enables automatic disassembly of drill rods, avoiding injury to operators from falling drill bits or pipes, and improves the applicability of the equipment, making it suitable for disassembling drill rods of different sizes.
Smart Images
Figure CN224310032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and fixtures, specifically a drill pipe disassembly device. Background Technology
[0002] Drill pipe is a crucial tool in the oil, geological exploration, and engineering fields. Its core function is to transmit torque, drilling pressure, and drilling fluid through connection with the drilling rig, enabling wellbore extension and formation drilling. Drill pipe mainly consists of the pipe body, connectors, drill bit, and additional functional components. The pipe body is the main part of the drill pipe and is typically made of high-strength alloy steel to withstand the enormous tensile and torque forces during drilling. The pipe body wall thickness is optimized according to the drilling depth and formation conditions to ensure sufficient strength and toughness. The connector, located at the end of the pipe body, is divided into male and female connectors, achieving a tight connection between the pipe body and the drill bit through threaded connection. The connector is often thickened to enhance connection strength and prevent breakage or derailment during drilling.
[0003] Drill pipes often need to be disassembled and maintained during use. However, the connection between the drill pipe body and the drill bit through the joint is strong, and the drill pipe is heavy. Disassembly is usually done manually, which is difficult and poses safety hazards. Utility Model Content
[0004] The purpose of this invention is to solve the problems of high difficulty in disassembling existing drill pipes and the existence of safety hazards.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A drill pipe dismantling device includes a frame. A pair of slide rails are provided on both sides of the top of the frame. A first mounting seat, a second mounting seat, a third mounting seat, and a fourth mounting seat are sequentially arranged on the top of the frame along the slide rails. A first clamping mechanism is provided on the top of the first mounting seat, a second clamping mechanism is provided on the top of the second mounting seat, a first rotating mechanism is provided on the top of the third mounting seat, and a second rotating mechanism is provided on the top of the fourth mounting seat. The first mounting seat is fixedly connected to the frame, and the second, third, and fourth mounting seats are slidably connected to the frame. The first rotating mechanism includes a pair of first fixed plates, with a first rotating cylinder rotatably connected between the first fixed plates. A first rotating disk is fixedly connected to the end of the first rotating cylinder facing the second clamping mechanism, and a pair of first hydraulic rods are rotatably connected to the outer wall of the first rotating cylinder.
[0007] Furthermore, the first fixing plate is prismatic in shape, and a pair of connecting rods are fixedly connected between the two ends of the pair of first fixing plates. The end of the pair of first hydraulic rods away from the first rotating cylinder is rotatably connected to the adjacent connecting rod. A guide limiting mechanism is provided on the side wall of the first fixing plate facing the second clamping mechanism. The pair of first hydraulic rods are diagonally arranged tangentially along the outer side wall of the first rotating cylinder.
[0008] Furthermore, the second rotating mechanism includes a pair of second fixed plates, a second rotating cylinder is rotatably connected between the pair of second fixed plates, a second rotating disk is fixedly connected to one end of the second rotating cylinder facing the first rotating mechanism, a fixed seat is fixedly connected to the top edge of the fourth mounting base, and a second hydraulic rod is rotatably connected between the fixed seat and the edge of the second rotating disk, the second hydraulic rod being arranged tangentially along the second rotating disk.
[0009] Furthermore, the first rotating cylinder, the first rotating disk, the second rotating cylinder, and the second rotating disk are coaxially arranged, and a limiting plate is detachably provided on the center of the side wall of the first rotating disk and the second rotating disk facing the second clamping mechanism, and a limiting hole is opened in the center of the limiting plate.
[0010] Furthermore, the first clamping mechanism includes a pair of symmetrically arranged sliding seats, which are slidably connected to the first mounting seat. A bidirectional threaded rod is threaded between the pair of sliding seats. Each sliding seat has a clamping plate fixedly connected to the side facing the second clamping mechanism. A pair of clamping blocks are fixedly connected to the opposing sidewalls of the pair of clamping plates.
[0011] Furthermore, both the second clamping mechanism and the guide limiting mechanism are bidirectional clamping mechanisms.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. The drill rod disassembly device of this utility model, by being equipped with a first clamping mechanism, a second clamping mechanism, a first rotating mechanism and a second rotating mechanism, can realize the automatic disassembly of the drill rod, and can fix the pipe body and drill bit during disassembly to prevent the disassembled drill bit or pipe body from falling and causing injury to the operator.
[0014] 2. The drill rod disassembly device of this utility model, by being equipped with a sliding groove and a limiting plate, can disassemble drill rods of different sizes, effectively improving the applicability of the device. Attached Figure Description
[0015] Fig. 1 This is a schematic diagram of the overall structure of the drill pipe disassembly device of this utility model.
[0016] Fig. 2This is a schematic diagram of the first and second rotating mechanisms of the drill pipe disassembly device of this utility model.
[0017] Fig. 3 This is a side view of the drill pipe disassembly device of this utility model.
[0018] Fig. 4 This is a top view of the drill pipe disassembly device of this utility model.
[0019] Fig. 5 This is a schematic diagram of the assembly structure of the drill pipe disassembly device of this utility model.
[0020] In the diagram: 1. Frame; 2. Slide rail; 3. First mounting base; 4. Second mounting base; 5. Third mounting base; 6. Fourth mounting base; 7. First clamping mechanism; 701. Sliding seat; 702. Clamping plate; 703. Bidirectional threaded rod; 704. Clamping block; 8. Second clamping mechanism; 9. First rotating mechanism; 901. First fixed plate; 902. First rotating cylinder; 903. Connecting rod; 904. First hydraulic rod; 905. Guide and limiting mechanism; 10. Second rotating mechanism; 1001. Second fixed plate; 1002. Second rotating cylinder; 1003. Fixed base; 1004. Second hydraulic rod; 1005. Second rotating disk; 11. Limiting plate; 12. Limiting hole. 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] Please see Figs. 1-3The drill pipe dismantling device of this embodiment includes a frame 1. A pair of slide rails 2 are provided on both sides of the top of the frame 1. A first mounting seat 3, a second mounting seat 4, a third mounting seat 5, and a fourth mounting seat 6 are sequentially arranged on the top of the frame 1 along the slide rails 2. A first clamping mechanism 7 is provided on the top of the first mounting seat 3 for clamping and fixing the end of the pipe body. A second clamping mechanism 8 is provided on the top of the second mounting seat 4 for clamping and fixing the middle part of the pipe body. A first rotating mechanism 9 is provided on the top of the third mounting seat 5 for rotating and dismantling the connection end between the drill bit and the pipe body. A second rotating mechanism 10 is provided on the top of the fourth mounting seat 6 for rotating and dismantling the end of the drill bit away from the pipe body. The first mounting seat 3 is fixedly connected to the frame 1. The second mounting seat 4, the third mounting seat 5, and the fourth mounting seat 6... The first rotating mechanism 9, which is slidably connected to the frame 1, includes a pair of first fixed plates 901. A first rotating cylinder 902 is rotatably connected between the first fixed plates 901. A first rotating disk 906 is fixedly connected to one end of the first rotating cylinder 902 facing the second clamping mechanism 8. A pair of first hydraulic rods 904 are rotatably connected to the outer wall of the first rotating cylinder 902. The first fixed plates 901 are prismatic in shape. A pair of connecting rods 903 are fixedly connected between the two ends of the pair of first fixed plates 901. The ends of the pair of first hydraulic rods 904 away from the first rotating cylinder 902 are rotatably connected to the adjacent connecting rods 903. A guide limiting mechanism 905 is provided on one side wall of the first fixed plate 901 facing the second clamping mechanism 8 for limiting and guiding the tube body during disassembly. The pair of first hydraulic rods 904 are diagonally arranged tangentially along the outer wall of the first rotating cylinder 902.Before disassembly, adjust the positions of the second mounting base 4, the third mounting base 5, and the fourth mounting base 6 according to the length of the drill pipe and the drill bit, so that the distance between the first clamping mechanism 7 and the first rotating mechanism 9 matches the length of the pipe, and the distance between the first rotating mechanism 9 and the second rotating mechanism 10 matches the length of the drill bit. Then, place the drill pipe horizontally between the first clamping mechanism 7, the second clamping mechanism 8, the first rotating mechanism 9, and the second rotating mechanism 10. The first clamping mechanism 7 fixes the end of the pipe away from the drill bit, and the second clamping mechanism 8 clamps and fixes the middle part of the pipe. During installation, ensure that the connection between the pipe and the drill bit is located between the first rotating disk 906 and the guide limiting mechanism 905, and then the guide limiting mechanism 905 limits the outer wall of the pipe at the connection. The other end of the drill bit passes through the limiting hole 12 in the center of the limiting plate 11 on the side wall of the first rotating disk 906 and the first rotating cylinder 902 and connects to the second rotating mechanism 10. After fixing, the drill bit is disassembled through the first rotating mechanism 9 and the second rotating mechanism 10. During disassembly, the first hydraulic rod 904 extends, causing the first rotating cylinder 902, which is rotatably connected to the other end of the first hydraulic rod 904, to start rotating. When the first rotating cylinder 902 rotates, it causes the first rotating disk 906 and the limiting plate 11 on its side wall to start rotating. When the limiting plate 11 rotates, it causes the end of the drill bit connected to the pipe body at its central limiting hole 12 to start rotating. During the rotation of the drill bit, the third mounting seat 5 and the fourth mounting seat 6 move away from the first clamping mechanism 7, so that the drill bit is disassembled from the pipe body during the rotation, thereby realizing the automatic disassembly of the drill bit.
[0023] The second rotating mechanism 10 includes a pair of second fixed plates 1001, a second rotating cylinder 1002 is rotatably connected between the pair of second fixed plates 1001, a second rotating disk 1005 is fixedly connected to one end of the second rotating cylinder 1002 facing the first rotating mechanism 9, a fixed seat 1003 is fixedly connected to the top edge of the fourth mounting base 6, a second hydraulic rod 1004 is rotatably connected between the fixed seat 1003 and the edge of the second rotating disk 1005, and the second hydraulic rod 1004 is arranged tangentially to the second rotating disk 1005. During installation, the end of the drill bit furthest from the pipe body is inserted into the limiting hole 12 at the center of the limiting plate 11 on the side wall of the second rotating disk 1005, thereby limiting the end of the drill bit. During disassembly, the second hydraulic rod 1004 extends and drives the second rotating drum 1002 to rotate in the same direction as the first rotating drum 902, thereby driving the second rotating disk 1005 and the limiting plate 11 on its side wall to start rotating. When the limiting plate 11 rotates, it drives the end of the drill bit furthest from the pipe body at its central limiting hole 12 to start rotating, thereby applying torque in the same direction to both ends of the drill bit, avoiding uneven force on both ends of the drill bit and causing it to deviate.
[0024] The first rotating drum 902, the first rotating disk 906, the second rotating drum 1002, and the second rotating disk 1005 are coaxially arranged. A limiting plate 11 is detachably installed on the center of the side wall of both the first rotating disk 906 and the second rotating disk 1005 facing the second clamping mechanism 8. A limiting hole 12 is formed in the center of the limiting plate 11. By replacing the limiting plate 11 with different sized limiting holes 12, drill rods of different sizes can be disassembled.
[0025] The first clamping mechanism 7 includes a pair of symmetrically arranged sliding seats 701, which are slidably connected to the first mounting base 3. A bidirectional threaded rod 703 is threaded between the pair of sliding seats 701. Each sliding seat 701 is fixedly connected to a clamping plate 702 on the side facing the second clamping mechanism 8. A pair of clamping blocks 704 are fixedly connected to the opposing sidewalls of the pair of clamping plates 702. During clamping, the end of the tube away from the drill bit is positioned between the pair of clamping blocks 704. Then, the bidirectional threaded rod 703 is rotated, causing the pair of sliding seats 701 threaded on both sides to slide towards each other. As the sliding seats 701 slide towards each other, the clamping plates 702 and clamping blocks 704 move accordingly until the clamping blocks 704 clamp and fix the end of the tube.
[0026] The second clamping mechanism 8 and the guide limiting mechanism 905 are both bidirectional clamping mechanisms.
[0027] Working principle: Before disassembly, adjust the positions of the second mounting base 4, the third mounting base 5, and the fourth mounting base 6 according to the length of the drill pipe and the drill bit, so that the distance between the first clamping mechanism 7 and the first rotating mechanism 9 matches the length of the pipe, and the distance between the first rotating mechanism 9 and the second rotating mechanism 10 matches the length of the drill bit; then, place the drill pipe horizontally between the first clamping mechanism 7, the second clamping mechanism 8, the first rotating mechanism 9, and the second rotating mechanism 10, and fix the end of the pipe away from the drill bit through the first clamping mechanism 7; when fixing, the end of the pipe away from the drill bit is located between a pair of clamping blocks 704, and then rotate the bidirectional threaded rod 703, so that the pair of sliding seats 701 connected by threads on both sides slide towards each other. When the sliding seat 701 slides towards each other, it drives the clamping plate 702 and the clamping block 704 to move accordingly until the clamping block 704 clamps and fixes the end of the tube body; then the middle part of the tube body is clamped and fixed by the second clamping mechanism 8; during installation, the connection between the tube body and the drill bit is located between the first rotating disk 906 and the guide limiting mechanism 905, and then the guide limiting mechanism 905 limits the outer wall of the tube body at the connection. The other end of the drill bit passes through the limiting hole 12 in the center of the limiting plate 11 on the side wall of the first rotating disk 906 and the first rotating cylinder 902 and connects to the second rotating mechanism 10; during connection, the end of the drill bit away from the tube body is inserted into the limiting hole 12 in the center of the limiting plate 11 on the side wall of the second rotating disk 1005, thereby limiting the end of the drill bit.
[0028] After fixing, the drill bit is disassembled using the first rotating mechanism 9 and the second rotating mechanism 10. During disassembly, the first hydraulic rod 904 extends, causing the first rotating drum 902, which is rotatably connected to the other end of the first hydraulic rod 904, to start rotating. When the first rotating drum 902 rotates, it causes the first rotating disk 906 and its side wall limiting plate 11 to start rotating. When the limiting plate 11 rotates, it causes the end of the drill bit connected to the pipe body at its central limiting hole 12 to start rotating. At the same time, the second hydraulic rod 1004 extends, causing the second rotating drum 1002 to rotate along the first rotating disk 906. The cylinder 902 rotates in the same direction, thereby causing the second rotating disk 1005 and the limiting plate 11 on its side wall to start rotating. When the limiting plate 11 rotates, it causes the end of the drill bit at its central limiting hole 12 that is away from the tube body to start rotating. This applies torque in the same direction to both ends of the drill bit, preventing uneven force on both ends of the drill bit from causing it to tilt. During the rotation of the drill bit, the third mounting seat 5 and the fourth mounting seat 6 move away from the first clamping mechanism 7, causing the drill bit to detach from the tube body during rotation, thereby achieving automatic disassembly of the drill bit.
[0029] 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 drill pipe dismantling device, characterized in that, The device includes a frame (1), on which a pair of slide rails (2) are provided on both sides of the top. A first mounting base (3), a second mounting base (4), a third mounting base (5), and a fourth mounting base (6) are sequentially provided on the top of the frame (1) along the slide rails (2). A first clamping mechanism (7) is provided on the top of the first mounting base (3), a second clamping mechanism (8) is provided on the top of the second mounting base (4), a first rotating mechanism (9) is provided on the top of the third mounting base (5), and a second rotating mechanism is provided on the top of the fourth mounting base (6). (10) The first mounting base (3) is fixedly connected to the frame (1), the second mounting base (4), the third mounting base (5) and the fourth mounting base (6) are slidably connected to the frame (1), the first rotating mechanism (9) includes a pair of first fixing plates (901), a first rotating cylinder (902) is rotatably connected between the first fixing plates (901), a first rotating disk (906) is fixedly connected to one end of the first rotating cylinder (902) facing the second clamping mechanism (8), and a pair of first hydraulic rods (904) are rotatably connected to the outer side wall of the first rotating cylinder (902).
2. The drill pipe dismantling device according to claim 1, characterized in that: The first fixing plate (901) is prismatic. A pair of connecting rods (903) are fixedly connected between the two ends of the pair of first fixing plates (901). The end of the pair of first hydraulic rods (904) away from the first rotating drum (902) is rotatably connected to the adjacent connecting rod (903). A guide limiting mechanism (905) is provided on the side wall of the first fixing plate (901) facing the second clamping mechanism (8). The pair of first hydraulic rods (904) are diagonally arranged tangentially along the outer side wall of the first rotating drum (902).
3. The drill pipe dismantling device according to claim 1, characterized in that: The second rotating mechanism (10) includes a pair of second fixed plates (1001), a second rotating cylinder (1002) is rotatably connected between the pair of second fixed plates (1001), a second rotating disk (1005) is fixedly connected to one end of the second rotating cylinder (1002) facing the first rotating mechanism (9), a fixed seat (1003) is fixedly connected to the top edge of the fourth mounting base (6), a second hydraulic rod (1004) is rotatably connected between the fixed seat (1003) and the edge of the second rotating disk (1005), and the second hydraulic rod (1004) is arranged tangentially to the second rotating disk (1005).
4. The drill pipe dismantling device according to claim 3, characterized in that: The first rotating cylinder (902), the first rotating disk (906), the second rotating cylinder (1002) and the second rotating disk (1005) are coaxially arranged. The first rotating disk (906) and the second rotating disk (1005) are detachably provided with a limiting plate (11) on the center of the side wall facing the second clamping mechanism (8). The limiting plate (11) has a limiting hole (12) in the center.
5. The drill pipe dismantling device according to claim 1, characterized in that: The first clamping mechanism (7) includes a pair of symmetrically arranged sliding seats (701), the sliding seats (701) are slidably connected to the first mounting seat (3), and a bidirectional threaded rod (703) is threaded between the pair of sliding seats (701). Each sliding seat (701) is fixedly connected to a clamping plate (702) on the side facing the second clamping mechanism (8), and a pair of clamping blocks (704) are fixedly connected to the opposing sidewalls of the pair of clamping plates (702).
6. The drill pipe dismantling device according to claim 2, characterized in that: The second clamping mechanism (8) and the guide limiting mechanism (905) are both bidirectional clamping mechanisms.