Collet dismounting device

Abstract

The application discloses a slip dismounting device and relates to the technical field of slip dismounting.The device comprises a base, the inside of the base is sleeved with a slip main body, the outer wall of the slip main body is integrally formed with a protruding portion, and a gap exists between the protruding portion and the base, a dismounting mechanism, a rotating plate, a clamping block and a sliding block are arranged to facilitate automatic locking and fixing operation of the fixed block after movement, the arrangement of a second spring ensures the stability of the clamping block and the fixed block when they are clamped together, the arrangement of a pull rod facilitates the unlocking operation of the clamping block and the fixed block, the arrangement of a clamping jaw, an extruding seat and an extruding block facilitates the increase of the gap between the slip main body and the base, thereby facilitating the separation operation of the slip main body and the base by the staff, increasing the contact area between the slip main body and the hands of the staff, improving the safety during the separation of the slip main body, and greatly improving the replacement efficiency of the subsequent slip main body.

Description

Technical Field

[0001] This invention relates to the technical field of slip disassembly, specifically to a slip disassembly device. Background Technology

[0002] Petroleum is a viscous, dark brown liquid, often referred to as the "blood of industry." It is found in parts of the upper crust and is primarily composed of a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. It is a major target for geological exploration. Before drilling, oil-bearing blocks must be discovered through exploration. Then, using specialized equipment and techniques, a cylindrical borehole of a certain diameter is drilled downwards or to one side at a pre-selected surface location to reach the underground oil and gas layer. In the oil drilling industry, it is often necessary to disconnect the tubing string. After loosening the clips on the tubing string, slips must be inserted to prevent the removed tubing string from falling into the wellbore.

[0003] In the petroleum industry, hydraulically set retrievable packers are highly convenient and efficient for well completion and modification operations. The suspension of the slips is a crucial element, directly impacting the success of subsequent well completion operations. During assembly, the slips are spread open and inverted between the upper and lower cones. However, the spreaders often exceed their deformation limits, leading to cracking or failure to spring back, necessitating slip replacement. Currently, slip replacement is mostly done manually, separating the slips from the base. Due to the small gap between the slips and the base, separation is time-consuming and laborious, significantly reducing the efficiency of subsequent slip replacements. Furthermore, the slips are coated with lubricant during use, making it easy for the slips to detach from the worker's hands during manual separation, resulting in lower safety during slip replacement. Therefore, a slip disassembly device is provided. Summary of the Invention

[0004] The purpose of this invention is to provide a slip removal device to solve the problems of low efficiency and low safety of manual slip replacement.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a slip removal device, including a base, a slip body is sleeved inside the base, a protrusion is integrally formed on the outer wall of the slip body, and there is a gap between the protrusion and the base, a support seat is fixed to the top of the base by bolts, a removal mechanism is sleeved inside the support seat, and the removal mechanism extends to both ends of the support seat.

[0006] The disassembly mechanism includes a sliding seat fitted inside the support base. A pull rod is fitted to the top of the sliding seat, and the bottom end of the pull rod extends into the interior of the sliding seat. A locking block is welded to the bottom end of the pull rod. A sliding block is welded to one side of the locking block. A rotating plate is rotatably connected inside the sliding seat via a rotating shaft. The rotating plate is located on one side of the sliding block. A fixing block is fitted inside the sliding seat. A sliding through groove matching the fixing block is provided on one side of the sliding seat. By setting the rotating plate and the sliding seat to be rotatably connected, it is beneficial to ensure that the rotating plate can be squeezed to rotate when the fixing block moves. The rotating plate is used to provide an upward pushing force for the sliding block. The locking block and the sliding block are used to engage and lock the fixed block after it has moved.

[0007] As a further embodiment of the present invention: the disassembly mechanism further includes bolt rods fixed to both ends of the fixing block by welding. Each end of the outer wall of the bolt rod is fitted with a claw, and a nut is provided at one end of the bolt rod. The nut is located at one end of the claw and fits tightly with the claw. The setting of the nut facilitates the connection and fixing of the claw and the bolt rod.

[0008] As a further embodiment of the present invention: a connecting block is fixed to one side of the sliding seat by welding, and a threaded rod is connected to the inside of the connecting block by thread. The outer wall of the threaded rod is provided with an external thread, and the inner wall of the connecting block is provided with an external thread. The external thread and the internal thread are matched. A rotating cap is fixed to the top of the threaded rod by welding. The cooperation between the external thread of the threaded rod and the internal thread of the connecting block is beneficial to the vertical movement of the connecting block when the threaded rod rotates.

[0009] As a further embodiment of the present invention: the bottom end of the threaded rod is rotatably connected to the inner wall of the support seat through a bearing, the outer wall of the threaded rod is connected to a limiting plate through a bearing, and one side of the limiting plate is fixedly connected to the inner wall of the support seat through a screw. The setting of the limiting plate helps to ensure the stability of the threaded rod when it rotates, and thus helps to improve the stability of the connecting block and the sliding seat when they move vertically.

[0010] As a further aspect of the present invention: the support base is provided with a sliding groove inside that matches the moving trajectory of the sliding seat, and the two ends of the support base are provided with moving through grooves that match the moving trajectory of the bolt rod. The provision of the sliding groove and the moving through groove helps to ensure that the sliding seat and the bolt rod can move in the vertical direction.

[0011] As a further aspect of the present invention: the sliding seat is provided with a moving groove that matches the moving trajectory of the sliding block and the locking block, the top of the fixed block is provided with a locking groove that matches the shape of the locking block, the bottom end of the sliding block is set as an arc surface, and the bottom end of the rotating plate is set as an arc surface. This facilitates the upward movement of the sliding block and the locking block when the rotating plate rotates, thereby facilitating the locking operation between the locking block and the locking groove at the top of the fixed block.

[0012] As a further embodiment of the present invention: the bottom end of the claw is fixedly welded with a pressing seat, one end of the pressing seat is sleeved with a pressing block, one end of the pressing block penetrates into the interior of the pressing seat, and one end of the pressing block is fixedly connected with a first spring, the other end of the first spring is fixedly connected to the inner wall of the pressing seat.

[0013] As a further embodiment of the present invention: the extrusion seat is set in an inclined shape, one end of the extrusion block is set in an inclined shape, and the interior of the extrusion seat is provided with a limiting groove that matches the extrusion block. By setting the bottom end of the extrusion seat in an inclined shape, it is beneficial for the extrusion seat to extrude the gap between the protrusion of the outer wall of the slip body and the base, thereby facilitating the upward movement of the slip body and thus facilitating the complete disassembly of the slip body and the base.

[0014] As a further embodiment of the present invention: a second spring is fixedly connected to the top of the sliding block and the locking block. The second spring is sleeved on the outer wall of the pull rod, and the top of the second spring is fixedly connected to the inner wall of the sliding seat. The setting of the second spring is beneficial to the operation of resetting the sliding block and the locking block after they have been moved, and at the same time, it is also beneficial to provide the locking block with the locking force to engage with the locking groove at the top of the fixed block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention, through the design of a disassembly mechanism, utilizes a rotating plate, a locking block, and a sliding block to facilitate the automatic locking and securing of the moved fixed block. The second spring ensures stability when the locking block and fixed block are engaged. The pull rod facilitates the release of the locking block from the fixed block. The claws, pressing seat, and pressing block increase the gap between the clamp body and the base, making it easier for workers to separate the clamp body from the base. This also increases the contact area between the clamp body and the worker's hands, improving safety during clamp body separation and significantly increasing the efficiency of subsequent clamp body replacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2This is a schematic diagram of the fixed block, bolt rod, claw, and base in the separated state of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the diagram;

[0020] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A1 in the diagram;

[0021] Figure 5 This is a schematic diagram of the internal structure of the claw of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B in the diagram;

[0023] Figure 7 This is a schematic diagram of the internal structure of the support base of the present invention;

[0024] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C;

[0025] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C1;

[0026] Figure 10 For the present invention Figure 8 A magnified structural diagram at point C2.

[0027] In the diagram: 1. Base; 2. Clamp body; 3. Support seat; 4. Disassembly mechanism; 401. Fixing block; 402. Bolt rod; 403. Clamping claw; 4031. Pressing seat; 4032. Pressing block; 4033. First spring; 404. Sliding seat; 4041. Connecting block; 4042. Threaded rod; 4043. Rotating cap; 405. Rotating plate; 406. Sliding block; 407. Clamping block; 408. Pull rod; 409. Second spring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-10In this embodiment of the invention, the slip disassembly device includes a base 1, which is cylindrical to facilitate the placement of the tube column. A slip body 2 is fitted inside the base 1. The outer wall of the slip body 2 is integrally formed with a protrusion. The protrusion ensures the limiting operation between the slip body 2 and the base, and there is a gap between the protrusion and the base 1. A support seat 3 is fixed to the top of the base 1 by bolts. The base 1 also supports the support seat 3. A disassembly mechanism 4 is fitted inside the support seat 3, and the disassembly mechanism 4 extends to both ends of the support seat 3.

[0030] The disassembly mechanism 4 includes a sliding seat 404 fitted inside the support base 3. A pull rod 408 is fitted to the top of the sliding seat 404, and the bottom end of the pull rod 408 extends into the interior of the sliding seat 404. The interior of the sliding seat 404 is provided with a through hole that matches the movement trajectory of the pull rod 408. The through hole helps to ensure the stability of the pull rod 408 in the vertical direction. A locking block 407 is welded to the bottom end of the pull rod 408, and a sliding block 406 is welded to one side of the locking block 407. A rotating plate 405 is rotatably connected inside the sliding seat 404 via a rotating shaft. The rotating plate 405 is located on one side of the sliding block 406. A fixing block 401 is fitted inside the sliding seat 404, and a sliding through groove matching the fixing block 401 is provided on one side of the sliding seat 404. By connecting the rotating plate 405 and the sliding seat 404... The 04 configuration, with its rotating connection, ensures that the fixed block 401 can be rotated by pressing the rotating plate 405 during movement. The rotating plate 405 provides an upward pushing force to the sliding block 406. The locking block 407 and the sliding block 406 engage and lock the fixed block 401 after it has moved. Furthermore, this structure facilitates the complete disassembly of the slip body 2. The cooperation of the device parts increases the gap between the slip body 2 and the base 1. This increased gap significantly increases the contact area between the slip body 2 and the disassembler's hand, thereby reducing the risk of the slip body 2 becoming detached from the disassembler's hand and improving the safety of the slip body 2 during disassembly. Compared to the traditional method of directly disassembling the slip body 2 manually, this method improves the disassembly efficiency of the slip body 2.

[0031] Please refer to this carefully. Figure 5 , 6 The disassembly mechanism 4 also includes bolt rods 402 that are welded to both ends of the fixing block 401. Each end of the outer wall of the bolt rod 402 is fitted with a claw 403. A nut is provided at one end of the bolt rod 402. The nut is located at one end of the claw 403 and fits tightly with the claw 403. The nut facilitates the connection and fixation of the claw 403 and the bolt rod 402. Furthermore, the claw 403 increases the gap between the slip body 2 and the base 1, making it easier to disassemble the slip body 2 later.

[0032] Please refer to this carefully. Figure 7 , 8 A connecting block 4041 is welded to one side of the sliding seat 404. A threaded rod 4042 is threadedly connected to the inside of the connecting block 4041. The outer wall of the threaded rod 4042 is provided with external threads, and the inner wall of the connecting block 4041 is provided with external threads. The external threads and internal threads match. A rotating cap 4043 is welded to the top of the threaded rod 4042. The engagement between the external thread of the threaded rod 4042 and the internal thread of the connecting block 4041 facilitates the vertical movement of the connecting block 4041 when the threaded rod 4042 rotates. Furthermore, the rotation of the rotating cap 4043 drives the vertical movement of the connecting block 4041 through mechanical transmission. The movement of the connecting block 4041 drives the sliding seat 404 to move. This structure helps to provide vertical movement force for the sliding seat 404.

[0033] Please refer to this carefully. Figure 8 The bottom end of the threaded rod 4042 is rotatably connected to the inner wall of the support base 3 via a bearing. The outer wall of the threaded rod 4042 is connected to a limit plate via a bearing. One side of the limit plate is fixedly connected to the inner wall of the support base 3 via screws. The setting of the limit plate helps to ensure the stability of the threaded rod 4042 when rotating, which in turn helps to improve the stability of the connecting block 4041 and the sliding seat 404 when moving vertically. Furthermore, the connection between the bottom end of the threaded rod 4042 and the inner wall of the support base 3 via the bearing and the setting of the limit plate help to transmit the rotational force of the threaded rod 4042 to the vertical moving force of the sliding seat 404.

[0034] Please refer to this carefully. Figure 8 The support base 3 has a sliding groove inside that matches the moving trajectory of the sliding seat 404. Both ends of the support base 3 have moving through grooves that match the moving trajectory of the bolt rod 402. The sliding groove and the moving through groove help ensure the vertical movement of the sliding seat 404 and the bolt rod 402. Furthermore, the moving through groove and the sliding groove help ensure the stability of the vertical movement of the sliding seat 404 and the bolt rod 402, and prevent collisions between the sliding seat 404 and the bolt rod 402 and the support base 3 during movement.

[0035] Please refer to this carefully. Figure 8 , 9The sliding seat 404 has a moving groove inside that matches the moving trajectory of the sliding block 406 and the locking block 407. The top of the fixed block 401 has a locking groove that matches the shape of the locking block 407. The bottom of the sliding block 406 is arc-shaped, and the bottom of the rotating plate 405 is arc-shaped. This facilitates the upward movement of the sliding block 406 and the locking block 407 when the rotating plate 405 rotates, which in turn facilitates the locking operation of the locking block 407 and the locking groove at the top of the fixed block 401. Furthermore, the moving groove helps to ensure the stability of the sliding block 406 and the locking block 407 when they move. By setting the bottom of the rotating plate 405 and the bottom of the sliding block 406 to arc-shaped, it is beneficial to convert the rotational force of the rotating plate 405 into the vertical moving force of the sliding block 406.

[0036] Please refer to this carefully. Figure 4 , 6 The bottom end of the claw 403 is fixed with a pressing seat 4031 by welding. One end of the pressing seat 4031 is fitted with a pressing block 4032. One end of the pressing block 4032 extends into the interior of the pressing seat 4031, and one end of the pressing block 4032 is fixedly connected with a first spring 4033. The other end of the first spring 4033 is fixedly connected to the inner wall of the pressing seat 4031. It can be further explained that the arrangement of the pressing block 4032 and the first spring 4033 is conducive to improving the pressing effect of the claw 403 on the pressing body 2.

[0037] Please refer to this carefully. Figure 4 The pressing seat 4031 is set in an inclined position, and one end of the pressing block 4032 is also set in an inclined position. The pressing seat 4031 has a limiting groove that matches the pressing block 4032 inside. By setting the bottom end of the pressing seat 4031 in an inclined position, it is beneficial for the pressing seat 4031 to press the gap between the outer wall protrusion of the slip body 2 and the base 1, thereby facilitating the upward movement of the slip body 2 and thus facilitating the complete disassembly of the slip body 2 and the base 1. Furthermore, when the gap between the slip body 2 and the base 1 increases, the first spring 4033 returns to its original state and drives the pressing block 4032 to reset and move. The pressing block 4032 moves and causes the slip body 2 to continue to move upward, thereby improving the disassembly effect between the slip body 2 and the base 1.

[0038] Please refer to this carefully. Figure 9A second spring 409 is fixedly connected to the top of the sliding block 406 and the locking block 407. The second spring 409 is sleeved on the outer wall of the pull rod 408, and the top of the second spring 409 is fixedly connected to the inner wall of the sliding seat 404. The setting of the second spring 409 is conducive to the operation of resetting the sliding block 406 and the locking block 407 after they have been moved. It is also conducive to providing the locking block 407 with the locking groove at the top of the fixed block 401. Furthermore, after the fixed block 401 is separated from the rotating plate 405, the second spring 409 returns to its original state and drives the sliding block 406 and the locking block 407 to reset and move, which in turn facilitates the operation of locking block 407 engaging with the locking groove at the top of the fixed block 401.

[0039] Working principle: When the main body 2 of the clamp needs to be replaced, the user first places the clamp 403 onto the outer wall of the bolt rod 402 and tightens the clamp 403 and bolt rod 402 with a nut. Then, the user aligns the fixing block 401 with the sliding groove on one side of the support seat 3, and then pushes the fixing block 401 into the sliding seat 404. The movement of the fixing block 401 causes the bolt rod 402 and clamp 403 to move. At the same time, the fixing block 401 moves and presses the rotating plate 405 to rotate. The arc-shaped part at the bottom of the rotating plate 405 rotates upward and contacts the arc-shaped part at the bottom of the sliding block 406. The fixing block 401 continues to move and press the rotating plate 405 to rotate. The rotating plate 405 rotates and presses the sliding block 406. Moving upwards, the sliding block 406 moves, causing the locking block 407 to move upwards. At this time, the second spring 409 is compressed. When the slot at the top of the fixed block 401 and the locking block 407 are in the same vertical position, the fixed block 401 separates from the rotating plate 405. Simultaneously, the second spring 409 returns to its original state and drives the sliding block 406 and the locking block 407 to reset and move through mechanical transmission. The locking block 407 resets and moves, engaging with the slot at the top of the fixed block 401. The sliding block 406 resets and moves, limiting one side of the fixed block 401. At this time, the fixed block 401 is connected and fixed to the sliding seat 404. Then, the user rotates the rotating cap 4043. The rotation of the rotating cap 4043 drives the threaded rod 4042 to rotate. 42 rotation causes connecting block 4041 to move downwards. The movement of connecting block 4041 causes sliding seat 404 to move downwards. Simultaneously, the movement of sliding seat 404 causes fixing block 401 and bolt rod 402 to move downwards. The movement of bolt rod 402 causes pawl 403 to move downwards. The movement of pawl 403 causes pressing seat 4031 to move. Pressing seat 4031 presses against the gap between the protrusion on the outer wall of the slip body 2 and the base 1. The protrusion on the outer wall of the slip body 2 presses pressing block 4032 towards the interior of pressing seat 4031. At this time, the first spring 4033 is compressed. When pressing seat 4031 compresses and causes slip body 2 to move upwards a certain distance, the gap between slip body 2 and base 1 increases. At this time, the first spring 4033 is compressed. Spring 4033 returns to its original state and drives the pressing block 4032 to reset and move. Continuing to rotate the rotating cap 4043 will further increase the gap between the slip body 2 and the base 1, thereby facilitating the user's disassembly of the slip body 2. This structure facilitates the complete disassembly of the slip body 2. The cooperation of the device parts helps to increase the gap between the slip body 2 and the base 1. The increased gap greatly increases the contact area between the slip body 2 and the user's hand, thereby reducing the risk of the slip body 2 and the user's hand becoming detached and improving the safety of the slip body 2 during disassembly. Compared with the traditional method of directly disassembling the slip body 2 manually, this method improves the disassembly efficiency of the slip body 2.

[0040] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and practical concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for removing a key, comprising a base (1), characterized in that: The inner sleeve of the base (1) is sleeved with a slip main body (2), the outer wall of the slip main body (2) is integrally formed with a protruding part, and there is a gap between the protruding part and the base (1), the top end of the base (1) is fixed with a support seat (3) through bolts, the inner sleeve of the support seat (3) is sleeved with a dismounting mechanism (4), and the dismounting mechanism (4) extends to both ends of the support seat (3); The dismounting mechanism (4) includes a sliding seat (404) sleeved in the support seat (3), the top end of the sliding seat (404) is sleeved with a pull rod (408), the bottom end of the pull rod (408) penetrates into the inner sleeve of the sliding seat (404), and the bottom end of the pull rod (408) is fixed with a clamping block (407) through welding, one side of the clamping block (407) is fixed with a sliding block (406) through welding, the inner sleeve of the sliding seat (404) is rotatably connected with a rotating plate (405) through a rotating shaft, the rotating plate (405) is located on one side of the sliding block (406), the inner sleeve of the sliding seat (404) is sleeved with a fixed block (401), and one side of the sliding seat (404) is provided with a sliding groove matched with the fixed block (401); The dismounting mechanism (4) further includes a bolt rod (402) fixed on both ends of the fixed block (401) through welding, the outer wall of the bolt rod (402) is sleeved with a clamping jaw (403) at both ends, and one end of the bolt rod (402) is provided with a nut; One side of the sliding seat (404) is fixed with a connecting block (4041) through welding, the inner sleeve of the connecting block (4041) is threadedly connected with a threaded rod (4042), the outer wall of the threaded rod (4042) is provided with external threads, the inner wall of the connecting block (4041) is provided with external threads, the external threads and the internal threads are matched, and the top end of the threaded rod (4042) is fixed with a rotating cap (4043) through welding; The inner sleeve of the support seat (3) is provided with a sliding groove matched with the moving track of the sliding seat (404), and both ends of the support seat (3) are provided with a moving groove matched with the moving track of the bolt rod (402); The inner sleeve of the sliding seat (404) is provided with a moving groove matched with the moving track of the sliding block (406) and the clamping block (407), and the top end of the fixed block (401) is provided with a clamping groove matched with the clamping block (407), and the clamping groove is matched with the clamping block (407) in shape; The bottom end of the clamping jaw (403) is fixed with an extrusion seat (4031) through welding, one end of the extrusion seat (4031) is sleeved with an extrusion block (4032), one end of the extrusion block (4032) penetrates into the inner sleeve of the extrusion seat (4031), and one end of the extrusion block (4032) is fixedly connected with a first spring (4033), and the other end of the first spring (4033) is fixedly connected with the inner wall of the extrusion seat (4031); The extrusion seat (4031) is arranged in an inclined shape, one end of the extrusion block (4032) is arranged in an inclined shape, and the inside of the extrusion seat (4031) is provided with a limiting groove matched with the extrusion block (4032); The top end of the sliding block (406) and the clamping block (407) are fixedly connected with a second spring (409), the second spring (409) is sleeved on the outer wall of the pull rod (408), and the top end of the second spring (409) is fixedly connected with the inner wall of the sliding seat (404).

2. The slip device of claim 1, wherein The bottom end of the threaded rod (4042) is rotatably connected with the inner wall of the supporting seat (3) through a bearing, the outer wall of the threaded rod (4042) is connected with a limiting plate through a bearing, and one side of the limiting plate is fixedly connected with the inner wall of the supporting seat (3) through screws.

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