PDC (Polycrystalline Diamond Compact) drill bit with shackle device
By designing a shackle mechanism on the PDC drill bit, and using a fastening head to securely engage the drill pipe connection, the problem of loose connection between the existing PDC drill bit and drill pipe is solved, thus achieving stability and safety in drilling operations and simplifying the disassembly process.
Patent Information
- Application Number
- CN202520501147.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The existing PDC drill bit and drill pipe threaded connection is not strong enough and is prone to loosening, resulting in unstable and unsafe drilling operations.
The system employs a shackle mechanism, including a lower and upper fastening plate. Through threaded engagement and a rotating frame design, it achieves a stable connection between the drill bit and the drill rod. The fastening head secures the connection between the two sets of drill rods, enhancing stability and strength.
It ensures the stability of the connection between the drill bit and the drill pipe, avoids the problem of loosening in traditional threaded connections, improves the stability and safety of drilling operations, and is easy to disassemble.
Smart Images
Figure CN223854181U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of drill bit especially relates to a PDC drill bit with unpinning device. BACKGROUND
[0002] PDC drill bit (polycrystalline diamond compact drill bit) is widely used in petroleum, natural gas drilling operation, has high efficiency, wear resistance, long life and so on. However, the existing PDC drill bit in the drilling process, in order to disassemble conveniently, the connection between the existing drill bit and drill rod usually adopts threaded connection, after long time use, the threaded connection between the traditional drill bit and drill rod, it is easy to cause insufficient strength, the drill bit and drill rod are easy to loosen. Based on this, we propose a PDC drill bit with unpinning device. SUMMARY
[0003] To solve the technical problem of insufficient strength of the existing drill rod threaded connection, the utility model provides a PDC drill bit with unpinning device.
[0004] The utility model adopts the following technical scheme to realize: a PDC drill bit with unpinning device, including PDC drill bit, the upper layer drill rod of PDC drill bit is connected with, the top of lower layer drill rod is connected with screw head, screw head is connected with upper layer drill rod by screw thread, and the connecting place of lower layer drill rod and upper layer drill rod is installed with unpinning mechanism and is fastened;
[0005] The unpinning mechanism includes lower fastening disc and upper fastening disc, and the fixed column is connected between the lower fastening disc and the upper fastening disc;The surface of lower fastening disc and upper fastening disc is provided with circumferential slot for passing. Rotating screw is connected through upper fastening disc, and the connecting place of rotating screw and upper fastening disc is connected through thread cooperation.
[0006] Rotating screw is connected through upper fastening disc, and the connecting place of rotating screw and upper fastening disc is connected through thread cooperation. Rotating screw is connected with the handle of rotating, and the bottom of rotating screw is connected with the turnover frame, and the connecting place of turnover frame and rotating screw bottom is connected through the bearing axis, and the middle end area of turnover frame is connected with the turnover axis, and the turnover axis is connected with the mounting seat and turnover frame, and the top of turnover frame is connected with the fastening head.
[0007] When the PDC drill bit needs to be disassembled, the operator rotates the handle and synchronously rotates the screw, the screw is connected through the upper fastening disc by thread cooperation, the screw is lifted on the surface of the upper fastening disc, and the turnover frame is synchronously lifted, the top of the turnover frame is connected with the fastening head, with the lifting of the turnover frame, the middle part of the turnover frame is turned around the turnover axis, the fastening head is deflected, and the fastening head is in turn fastened and engaged with the connecting place of the two groups of drill rods, to ensure the stability of the connecting place of the two groups of drill rods and improve the strength of drilling.
[0008] As a further optimization scheme of the utility model, the buckle releasing mechanism is installed at the connecting position of the lower drill rod and the upper drill rod. In the drilling process, the PDC drill bit is rotated through the drill rod to carry out the drilling operation. Due to the existence of the buckle releasing mechanism, the connection between the drill bit and the drill rod is more stable, the problem that the traditional threaded connection is easy to loosen is avoided, and the stability and safety of the drilling operation are ensured.
[0009] As a further optimization scheme of the utility model, the buckle releasing mechanism is fixed at the connecting position of the lower drill rod and the upper drill rod to fasten the lower drill rod and the upper drill rod.
[0010] As a further optimization scheme of the utility model, a plurality of fixing columns are arranged between the upper fastening disc and the lower fastening disc to enhance the stability of the buckle releasing mechanism.
[0011] As a further optimization scheme of the utility model, when disassembly is needed, the reverse rotating handle is loosened, the fastening head is loosened, and then the disassembly is realized, so that the operator can easily disassemble the lower drill rod, and the disassembly process is completed.
[0012] As a further optimization scheme of the utility model, the fastening head is provided with three groups in a circumferential surrounding shape, and the fastening head is used for fixing the PDC drill bit.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1. The buckle releasing mechanism is innovatively provided in the utility model, due to the existence of the buckle releasing mechanism, the connection between the drill bit and the drill rod is more stable, the problem that the traditional threaded connection is easy to loosen is avoided, the stability and safety of the drilling operation are ensured, the threaded connection between the traditional drill bit and the drill rod is avoided, and the problem that the strength is not enough and the drill bit and the drill rod are easy to loosen is avoided.
[0015] 2. The fastening head is provided with three groups in a circumferential surrounding shape in the utility model, the fastening head is deflected, the fastening head is in turn fastened and engaged at the connecting position of the two drill rods, the stability of the connecting position of the two drill rods is ensured, and the drilling strength is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the utility model;
[0017] Figure 2 It is a threaded head connecting structure schematic view of the utility model;
[0018] Figure 3 It is a buckle releasing mechanism connecting structure schematic view of the utility model;
[0019] Figure 4 It is a fastening head connecting structure schematic view of the utility model.
[0020] MAIN SYMBOL EXPLANATION:
[0021] 1, PDC drill bit; 2, lower drill pipe; 3, threaded head; 4, upper drill pipe; 5, unthreading mechanism; 51, lower fastening disc; 52, upper fastening disc; 53, fixed column; 54, rotating handle; 55, rotating screw; 56, turnover frame; 57, bearing shaft; 58, turnover shaft; 59, mounting seat; 510, fastening head. DETAILED DESCRIPTION
[0022] In the following, the utility model will be further described in conjunction with the drawings and specific embodiments. It should be noted that the embodiments described below or the technical features between them can be combined to form new embodiments without conflict.
[0023] Embodiment 1:
[0024] Please combine Figures 1-4 The embodiment provides a PDC drill bit with an unthreading device, which comprises a PDC drill bit 1, a lower drill pipe 2 connected above the PDC drill bit 1, a threaded head 3 connected to the top end of the lower drill pipe 2, and an upper drill pipe 4 threadedly connected with the threaded head 3. An unthreading mechanism 5 is installed at the connection between the lower drill pipe 2 and the upper drill pipe 4 for fastening.
[0025] Specifically, the unthreading mechanism 5 is installed at the connection between the lower drill pipe 2 and the upper drill pipe 4. During drilling, the PDC drill bit 1 performs drilling operation through the rotation of the drill pipe. Due to the existence of the unthreading mechanism 5, the connection between the drill bit and the drill pipe is more stable, avoiding the problem that the traditional threaded connection is easy to loosen, and ensuring the stability and safety of the drilling operation.
[0026] It should be noted that the unthreading mechanism 5 is fixed at the connection between the lower drill pipe 2 and the upper drill pipe 4, and fastens the lower drill pipe 2 and the upper drill pipe 4.
[0027] The unthreading mechanism 5 comprises a lower fastening disc 51 and an upper fastening disc 52, and the lower fastening disc 51 and the upper fastening disc 52 are connected with a fixed column 53.
[0028] It should be noted that the surfaces of the lower fastening disc 51 and the upper fastening disc 52 are both provided with a circumferential slot for passing through.
[0029] Further, a plurality of fixed columns 53 are arranged between the upper fastening disc 51 and the lower fastening disc 52, so as to enhance the stability of the unthreading mechanism 5.
[0030] The rotating screw 55 is screwed through the upper fastening disc 52, the top end of the rotating screw 55 is connected with the rotating handle 54, the bottom end of the rotating screw 55 is connected with the overturning frame 56, the connecting position of the overturning frame 56 and the bottom end of the rotating screw 55 is penetrated through by the bearing shaft 57, the middle end region of the overturning frame 56 is penetrated through by the overturning shaft 58, the overturning shaft 58 penetrates the mounting seat 59 and the overturning frame 56, and the top end of the overturning frame 56 is connected with the fastening head 510.
[0031] Specifically, when the PDC drill bit 1 needs to be disassembled, the operator rotates the rotating handle 54 and synchronously rotates the rotating screw 55, the rotating screw 55 is screwed through the upper fastening disc 52, the rotating screw 55 is lifted on the surface of the upper fastening disc 52 and synchronously lifts the overturning frame 56, the top end of the overturning frame 56 is connected with the fastening head 510, with the lifting of the overturning frame 56, the middle part of the overturning frame 56 is overturned around the overturning shaft 58, the fastening head 510 is deflected, and the fastening head 510 in turn fastens and clamps the connecting position of the two groups of drill rods, so that the stability of the connecting position of the two groups of drill rods is guaranteed, and the drilling strength is improved.
[0032] When disassembly is needed, the rotating handle 54 is reversed, the fastening head 510 is loosened, and the disassembly can be realized, and the operator can easily disassemble the lower drill rod 2, and the disassembly process is completed.
[0033] Further, the rotating screw 55 penetrates through the upper fastening disc 52, and the connecting position of the rotating screw 55 and the upper fastening disc 52 is screwed.
[0034] It should be noted that the fastening head 510 is provided with three groups in a circumferential surrounding manner, and the fastening head 510 is used for fixing the PDC drill bit 1.
[0035] The specific implementation steps of the utility model are as follows:
[0036] Firstly, the PDC drill bit 1 is connected with the lower drill rod 2 through the threaded head 3, and the connection is firm.
[0037] The shackle mechanism 5 is installed at the connecting position of the lower drill rod 2. During the drilling process, the PDC drill bit 1 is drilled by the rotation of the drill rod. Due to the existence of the shackle mechanism 5, the connection between the drill bit and the drill rod is more stable, avoiding the problem that the traditional threaded connection is easy to loosen, and ensuring the stability and safety of the drilling operation.
[0038] When the PDC drill bit 1 needs to be disassembled, the operator rotates the handle 54 and synchronously rotates the screw rod 55, the screw rod 55 is screwed through the upper fastening disc 52, the screw rod 55 is lifted on the surface of the upper fastening disc 52 and synchronously lifts the turnover frame 56, the top end of the turnover frame 56 is connected with the fastening head 510, with the lifting of the turnover frame 56, the middle part of the turnover frame 56 is turned around the turnover shaft 58, the fastening head 510 is deflected, the fastening head 510 in turn fastens and clamps the connection of the two groups of drill rods, guarantees the stability of the connection of the two groups of drill rods and improves the drilling strength.
[0039] When disassembly is needed, the handle 54 is reversely rotated, the fastening head 510 is loosened, the disassembly can be realized, the operator can easily disassemble the lower drill rod 2, and the disassembly process is completed.
[0040] The above embodiment is only a preferred embodiment of the utility model, cannot be used to limit the range of the utility model protection, any non-substantial change and replacement of the person skilled in the art on the basis of the utility model belongs to the range of the utility model claimed for protection.
Claims
1. A PDC drill bit having a de-coupling device, comprising a PDC drill bit (1), characterized in that, The PDC drill bit (1) is connected with a lower drill rod (2), the top end of the lower drill rod (2) is connected with a threaded head (3), the threaded head (3) is threadedly connected with an upper drill rod (4), and a coupling release mechanism (5) is installed at the connection position of the lower drill rod (2) and the upper drill rod (4) for fastening. The coupling release mechanism (5) comprises a lower fastening disc (51) and an upper fastening disc (52), a fixing column (53) is connected between the lower fastening disc (51) and the upper fastening disc (52), a rotating screw rod (55) is threadedly penetrated through the upper fastening disc (52), the top end of the rotating screw rod (55) is connected with a rotating handle (54), the bottom end of the rotating screw rod (55) is connected with a turnover frame (56), the turnover frame (56) is penetrated through the bottom end of the rotating screw rod (55) through a bearing shaft (57), a turnover shaft (58) is penetrated through the middle end area of the turnover frame (56), the turnover shaft (58) is penetrated through a mounting seat (59) and the turnover frame (56), and the top end of the turnover frame (56) is connected with a fastening head (510).
2. A PDC bit having a deactivating device as defined in claim 1 wherein, The fastening head (510) is provided in three groups in a circumferential surrounding manner, and is used for fixing the PDC drill bit (1).
3. A PDC bit having a deactivating device as defined in claim 1 wherein, A plurality of fixing columns (53) are arranged between the upper fastening disc (52) and the lower fastening disc (51), so that the stability of the coupling release mechanism (5) is enhanced.
4. The PDC bit having a deactivating device of claim 1, wherein, The coupling release mechanism (5) is fixed at the connection position of the lower drill rod (2) and the upper drill rod (4), and is used for fastening the lower drill rod (2) and the upper drill rod (4).
5. The PDC bit having a deactivating device of claim 1 wherein, The rotating screw rod (55) penetrates through the upper fastening disc (52), and the connection position of the rotating screw rod (55) and the upper fastening disc (52) is threadedly matched.
6. A PDC bit having a deactivating device as defined in claim 1 wherein, The surfaces of the lower fastening disc (51) and the upper fastening disc (52) are both provided with circumferential notches for penetrating the upper drill rod (4).