Drill rod cutting device
By designing a device for drill pipe cutting, the drill pipe is cut by using a transmission assembly and a cutting machine, the problem of damage and inability to disassemble the drill pipe is solved, and the core is safely removed.
Patent Information
- Application Number
- CN202510416747.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2025-06-13
AI Technical Summary
The drill rod may be damaged during drilling, resulting in the inability to be screwed and opened by the disassembly device, and the core inside the drill rod cannot be removed.
A drill rod cutting device is designed, including a fixing bracket, a cutting machine, an actuator and a transmission assembly. The device drives the cutting machine to rotate on the fixed bracket and gradually approach the drill rod until the cutting piece of the cutting machine cuts the drill rod so that the core inside the drill rod can be removed.
It effectively solves the problem of drill pipe damage and inability to disassemble, and realizes the safe removal of the core inside the drill pipe, avoiding difficulties in the disassembly of the drill pipe.
Smart Images
Figure CN120133604A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cutting technology, and particularly to a drill pipe cutting device. Background Art
[0002] A core is a cylindrical rock sample taken from an underground rock layer during drilling. By analyzing the composition, structure, and properties of the core, the geological characteristics of the underground rock can be understood, providing an important basis for resource exploration such as oil, natural gas, minerals, and geological research.
[0003] After drilling is completed, a drill pipe disassembly device is used to unscrew the drill pipe, and then a core clamp or core extractor is used to take out the core from the drill pipe. However, when the drill pipe is damaged and cannot be unscrewed by the disassembly device, it is impossible to take out the core in the drill pipe. Summary of the Invention
[0004] An embodiment of this application provides a drill pipe cutting device, which solves the technical problem that when the drill pipe is damaged and cannot be unscrewed by the disassembly device, it is impossible to take out the core in the drill pipe.
[0005] The drill pipe cutting device provided by the embodiment of this application includes: a fixed bracket; a cutting machine, the cutting machine is rotatably connected to the fixed bracket, and the cutting blade of the cutting machine faces the drill pipe; an actuator, the actuator is connected to the fixed bracket; and a transmission assembly, one end of the transmission assembly is connected to the actuator end of the actuator, and the other end of the transmission assembly is connected to the cutting machine, and is configured to drive the cutting machine to rotate when the actuator end of the actuator moves.
[0006] In a possible implementation, the actuator is a telescopic structure; wherein, the transmission assembly includes a slide rail, a slider, a first swing rod, and a second swing rod; the slide rail is arranged on the fixed bracket in the vertical direction, the slider is slidably connected to the slide rail, and the actuator end of the actuator is connected to the slider; both ends of the first swing rod are respectively hinged to the slider and one end of the second swing rod, and the end of the second swing rod far from the first swing rod is fixedly connected to the cutting machine.
[0007] In a possible implementation, the transmission assembly further includes a slider bracket, the slider bracket is connected to the slider, and the slider bracket is provided with a long hole extending vertically; the first swing rod is hinged to the slider bracket, and the actuator end of the actuator is slidably and rotatably connected to the slider bracket through the long hole.
[0008] In a possible implementation, the fixed bracket includes a first connecting plate, a second connecting plate, a first support, and a rotating shaft; the first connecting plate is arranged vertically, and the second connecting plate is horizontally connected to the first connecting plate; the first support is arranged on the second connecting plate, and both ends of the rotating shaft are connected to the first support; wherein, the cutting machine is sleeved on the rotating shaft, and the actuating member is installed on the side of the first connecting plate facing away from the second connecting plate.
[0009] In a possible implementation, the drill pipe cutting device further includes: a torsion spring, the torsion spring is installed on the rotating shaft, and one torsion arm of the torsion spring is fixedly connected to the first support, and the other torsion arm of the torsion spring abuts against the cutting machine; when the cutting machine rotates in the direction approaching the drill pipe, the elastic potential energy of the torsion spring increases.
[0010] In a possible implementation, a fixed groove close to the rotating shaft is arranged on the side of the cutting machine facing the drill pipe; wherein, one torsion arm of the torsion spring is located in the fixed groove.
[0011] In a possible implementation, the fixed bracket further includes a second support, the second support is arranged on the side of the first connecting plate facing away from the second connecting plate; the actuating member is rotatably connected to the second support.
[0012] In a possible implementation, the fixed bracket further includes a first reinforcing plate, the first reinforcing plate is connected to the top surfaces of the first connecting plate and the second connecting plate; and / or, the fixed bracket further includes a second reinforcing plate, the second reinforcing plate connects the bottom surfaces of the first connecting plate and the second connecting plate.
[0013] In a possible implementation, the drill pipe cutting device further includes: a shock absorber, the shock absorber is connected to the cutting machine and is located between the cutting machine and the fixed bracket.
[0014] The technical solutions provided in the embodiments of the present application have at least the following technical effects:
[0015] The embodiments of the present application provide a drill pipe cutting device, which includes a fixed bracket, a cutting machine, an actuating member, and a transmission component. The drill pipe cutting device is used to be installed on a disassembly device. When the drill pipe is damaged and cannot be unscrewed and opened by the disassembly device, the actuating end of the actuating member is controlled to drive one end of the transmission component, and the transmission component drives the cutting machine to rotate on the fixed bracket and gradually approach the drill pipe until the cutting blade of the cutting machine cuts the drill pipe, so that the core in the drill pipe can be taken out. Description of the Drawings
[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments of the present application or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 Structural schematic diagram of the drill pipe cutting device provided by the embodiment of the present application from the first perspective;
[0018] Figure 2 Structural schematic diagram of the drill pipe cutting device provided by the embodiment of the present application from the second perspective;
[0019] Figure 3 is Figure 2 Partial enlarged view of area A in;
[0020] Figure 4 Structural schematic diagram of the drill pipe cutting device provided by the embodiment of the present application from the third perspective.
[0021] Reference numerals: 1 - fixed bracket; 11 - first connecting plate; 12 - second connecting plate; 13 - first support; 14 - rotating shaft; 15 - first reinforcing plate; 16 - second reinforcing plate; 17 - second support; 2 - cutting machine; 21 - fixed groove; 3 - actuating member; 4 - transmission assembly; 41 - slide rail; 42 - slider; 43 - first swing rod; 44 - second swing rod; 45 - slider bracket; 451 - long slot; 5 - torsion spring; 6 - shock absorber. Detailed implementation manners
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0023] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0024] As Figures 1 to 4 shown, the embodiment of the present application provides a drill pipe cutting device, which includes a fixed bracket 1, a cutting machine 2, an actuator 3 and a transmission assembly 4.
[0025] The cutting machine 2 is rotatably connected to the fixed bracket 1, and the cutting blade of the cutting machine 2 faces the drill pipe. The actuator 3 is connected to the fixed bracket 1. One end of the transmission assembly 4 is connected to the actuating end of the actuator 3, and the other end of the transmission assembly 4 is connected to the cutting machine 2, and is configured to drive the cutting machine 2 to rotate when the actuating end of the actuator 3 moves.
[0026] This drill pipe cutting device is used to be installed on a drill pipe disassembly device. When the drill pipe is damaged and cannot be unscrewed and opened by the drill pipe disassembly device, the actuating end of the actuator 3 is controlled to drive one end of the transmission assembly 4, and the transmission assembly 4 drives the cutting machine 2 to rotate on the fixed bracket 1 and gradually approach the drill pipe until the cutting blade of the cutting machine 2 cuts the drill pipe, so that the core in the drill pipe can be taken out.
[0027] As Figure 1 shown, in some embodiments of the present application, the actuator 3 is a telescopic structure; wherein, the transmission assembly 4 includes a slide rail 41, a slider 42, a first swing rod 43 and a second swing rod 44. The slide rail 41 is arranged on the fixed bracket 1 in the vertical direction, the slider 42 is slidably connected to the slide rail 41, and the actuating end of the actuator 3 is connected to the slider 42. Both ends of the first swing rod 43 are respectively hinged to the slider 42 and one end of the second swing rod 44, and the end of the second swing rod 44 far from the first swing rod 43 is fixedly connected to the cutting machine 2.
[0028] When the actuator 3 expands and contracts, the actuating end of the actuator 3 drives the slider 42 to slide vertically on the slide rail 41. The slider 42 drives the lower end of the first swing rod 43 to move. The upper end of the first swing rod 43 drives the cutting machine 2 to rotate through the second swing rod 44, so that the cutting blade of the cutting machine 2 approaches or moves away from the drill pipe.
[0029] Specifically, when the actuator 3 and the transmission assembly 4 are in Figure 1 the positions shown, when the actuator 3 extends, the actuating end of the actuator 3 drives the slider 42 to slide upward on the slide rail 41. The slider 42 drives the cutting machine 2 to rotate through the first swing rod 43 and the second swing rod 44, and the cutting blade of the cutting machine 2 gradually approaches the drill pipe. When the actuator 3 contracts, the actuating end of the actuator 3 drives the slider 42 to slide downward on the slide rail 41. The slider 42 drives the cutting machine 2 to rotate through the first swing rod 43 and the second swing rod 44, and the cutting blade of the cutting machine 2 gradually moves away from the drill pipe.
[0030] Exemplarily, the actuator 3 can be a hydraulic cylinder or an electric push rod.
[0031] Continuing to refer to Figure 1 , the transmission assembly 4 further includes a slider bracket 45. The slider bracket 45 is connected to the slider 42, and the slider bracket 45 is provided with a vertically extending long hole 451. The first swing rod 43 is hinged to the slider bracket 45, and the actuating end of the actuator 3 is slidably and rotatably connected to the slider bracket 45 through the long hole 451.
[0032] When the actuator 3 expands and contracts, while the actuating end of the actuator 3 slides in the long hole 451, it rotates relative to the slider bracket 45, thereby causing the slider bracket 45 to drive the slider 42 to slide on the slide rail 41 and the first swing rod 43 connected to the slider bracket 45 to move.
[0033] It should be noted that in some other embodiments of the present application, the transmission assembly 4 can also be other structures. For example, the actuator 3 is a motor, the transmission assembly 4 is a reducer, the input shaft of the reducer is fixedly connected to the rotating shaft of the motor, and the cutting machine 2 is fixedly connected to the output shaft of the reducer.
[0034] As Figure 4 shown, in some embodiments of the present application, the fixed bracket 1 includes a first connecting plate 11, a second connecting plate 12, a first support 13 and a rotating shaft 14. The first connecting plate 11 is arranged vertically, and the second connecting plate 12 is horizontally connected to the first connecting plate 11. The first support 13 is arranged on the second connecting plate 12, and both ends of the rotating shaft 14 are connected to the first support 13. Among them, the cutting machine 2 is sleeved on the rotating shaft 14, and the actuator 3 is installed on the side of the first connecting plate 11 facing away from the second connecting plate 12.
[0035] Specifically, the second connecting plate 12 is connected to the first connecting plate 11 via bolts, the first support 13 is connected to the second connecting plate 12 via bolts, and both ends of the rotating shaft 14 are rotatably connected to the first support 13 .
[0036] The first connecting plate 11 is used to be fixedly connected to the drill rod disassembly device, so that the drill rod cutting device is integrally mounted on the drill rod disassembly device. The second connecting plate 12 is used to carry the cutter 2 through the first support 13 and the rotating shaft 14. When the actuating end of the actuating member 3 drives the cutter 2 through the transmission assembly 4, the cutter 2 rotates around the rotating shaft 14 to get close to or away from the drill rod.
[0037] like Figure 3 As shown, the drill rod cutting device also includes a torsion spring 5, which is installed on the rotating shaft 14, and one torsion arm of the torsion spring 5 is fixedly connected to the first support 13, and the other torsion arm of the torsion spring 5 is abutted against the cutter 2; when the cutter 2 rotates in the direction close to the drill rod, the elastic potential energy of the torsion spring 5 increases.
[0038] After the cutting blade cuts the drill rod, there is friction between the cutting blade and the drill rod, so a large external force is required to pull the cutting blade out of the drill rod. While the actuator 3 drives the cutter 2 to rotate away from the drill rod through the transmission assembly 4, the torsion arm of the torsion spring 5 applies elastic force to the cutter 2, so that the cutting blade can quickly leave the drill rod, thereby completing the complete cutting process of the drill rod.
[0039] Further, the side of the cutter 2 facing the drill rod is provided with a fixing groove 21 close to the rotating shaft 14. Among them, a torsion arm of the torsion spring 5 is located in the fixing groove 21. The inner wall of the fixing groove 21 is used to limit the movement of the torsion arm of the torsion spring 5 so that the torsion arm of the torsion spring 5 can be fixed.
[0040] like Figure 1 As shown, in some embodiments of the present application, the fixing bracket 1 further includes a second support 17. The second support 17 is disposed on the side of the first connecting plate 11 that is away from the second connecting plate 12; specifically, the second support 17 is connected to the first connecting plate 11 by bolts. The actuator 3 is rotatably connected to the second support 17. When the actuator 3 is extended or retracted, the actuator 3 rotates relative to the second support 17.
[0041] like Figure 1 As shown, in some embodiments of the present application, the fixing bracket 1 further includes a first reinforcing plate 15, which is connected to the top surfaces of the first connecting plate 11 and the second connecting plate 12; and / or, the fixing bracket 1 further includes a second reinforcing plate 16, which is connected to the bottom surfaces of the first connecting plate 11 and the second connecting plate 12. That is, the fixing bracket 1 may include only the first reinforcing plate 15 or the second reinforcing plate 16, or may include both the first reinforcing plate 15 and the second reinforcing plate 16.
[0042] The first reinforcing plate 15 and the second reinforcing plate 16 can make the first connecting plate 11 and the second connecting plate 12 more firmly connected, enabling the second connecting plate 12 to have better load-bearing capacity to carry the cutting machine 2.
[0043] As Figure 4 shown, in some embodiments of the present application, the drill pipe cutting device further includes a shock absorber 6, which is connected to the cutting machine 2 and is located between the cutting machine 2 and the fixed bracket 1.
[0044] When the actuator 3 drives the cutting machine 2 to gradually move away from the drill pipe through the transmission assembly 4, the shock absorber 6 can first contact the fixed bracket 1 to prevent the cutting machine 2 from hitting the fixed bracket 1. Exemplarily, the shock absorber 6 can be a rubber spring.
[0045] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.
[0046] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.
Claims
1. A drill rod cutting device, characterized in that: include: Fixed bracket; A cutter, the cutter being rotatably connected to the fixed support, and the cutting blade of the cutter facing the drill pipe; an actuating member connected to the fixing bracket; as well as A transmission assembly, one end of which is connected to the actuating end of the actuating member, and the other end of which is connected to the cutting machine, is configured to drive the cutting machine to rotate when the actuating end of the actuating member is actuated.
2. The drill rod cutting device according to claim 1, characterized in that: The actuating member is a telescopic structure; Wherein, the transmission assembly includes a slide rail, a slider, a first swing rod and a second swing rod; The slide rail is arranged on the fixed bracket along the vertical direction, the slider is slidably connected to the slide rail, and the actuating end of the actuating member is connected to the slider; Two ends of the first swing rod are respectively hinged to the slider and one end of the second swing rod, and an end of the second swing rod away from the first swing rod is fixedly connected to the cutting machine.
3. The drill rod cutting device according to claim 2, characterized in that: The transmission assembly further comprises a slider bracket, the slider bracket is connected to the slider, and the slider bracket is provided with a vertically extending long strip hole; The first swing rod is hinged to the slider bracket, and the actuating end of the actuating member is slidably and rotatably connected to the slider bracket through the long hole.
4. The drill rod cutting device according to claim 1, characterized in that: The fixed bracket includes a first connecting plate, a second connecting plate, a first support and a rotating shaft; The first connecting plate is arranged vertically, and the second connecting plate is horizontally connected to the first connecting plate; The first support is disposed on the second connecting plate, and both ends of the rotating shaft are connected to the first support; Wherein, the cutting machine is mounted on the rotating shaft, and the actuating member is installed on the side of the first connecting plate facing away from the second connecting plate.
5. The drill rod cutting device according to claim 4, characterized in that: Also includes: A torsion spring is installed on the rotating shaft, and one torsion arm of the torsion spring is fixedly connected to the first support, and the other torsion arm of the torsion spring abuts against the cutting machine; when the cutting machine rotates in a direction close to the drill rod, the elastic potential energy of the torsion spring increases.
6. The drill rod cutting device according to claim 5, characterized in that: The side of the cutting machine facing the drill rod is provided with a fixing groove close to the rotating shaft; Wherein, a torsion arm of the torsion spring is located in the fixing groove.
7. The drill rod cutting device according to claim 4, characterized in that: The fixing bracket further comprises a second support, and the second support is arranged on a side of the first connecting plate facing away from the second connecting plate; The actuating member is rotatably connected to the second support.
8. The drill rod cutting device according to any one of claims 4 to 7, characterized in that: The fixing bracket further includes a first reinforcing plate, wherein the first reinforcing plate is connected to the top surfaces of the first connecting plate and the second connecting plate; And / or, the fixing bracket further includes a second reinforcing plate, and the second reinforcing plate connects the bottom surfaces of the first connecting plate and the second connecting plate.
9. The drill rod cutting device according to claim 1, characterized in that: Also includes: A shock absorbing member is connected to the cutting machine and is located between the cutting machine and the fixing bracket.