Underground steel wire rope fishing device
By designing an underground wire rope salvage device including a bracket, rope coiler and wire rope grabber, the problem of needing to be extracted from the drilling outer and inner pipes after the wire rope is broken is solved, and the effect of efficient salvage of broken wire ropes without extracting the drilling equipment is achieved, reducing drilling costs.
Patent Information
- Application Number
- CN202421636056.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In underground drilling operations, after the wire rope breaks, the existing technology needs to pull out the outer and inner pipes to salvage the broken rope, affecting normal drilling work and increasing production and labor costs.
An underground wire rope salvage device is designed, including a bracket, a rope retractor and a wire rope grabber. The wire rope grabber consists of a support frame, an electric push rod, a bracket ring and a clamping jaw. The clamping and suction of the broken wire rope is achieved through the expansion and closing of the electric push rod and clamping jaw.
The device can grab broken wire ropes without extracting the outer and inner pipes of the drilling well. It is easy to operate, has high gripping efficiency, saves manpower and material resources, and reduces drilling costs.
Smart Images
Figure CN222909978U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling, in particular to a downhole wire rope fishing device. Background Art
[0002] Drilling machinery is a commonly used device for drilling or exploration to extract natural resources underground or under the sea, or to obtain the actual situation of the formation profile, extract physical samples, and provide experiments to obtain relevant data and other information.
[0003] During downhole drilling operations, the drill pipe includes an outer pipe and an inner pipe inside the outer pipe. The bottom end of the outer pipe is connected to the drill bit, and the upper end of the inner pipe is connected to a fishing tool through a wire rope. When the wire rope is subjected to excessive tension and breaks and falls due to various other reasons, it needs to be fished. In the prior art, it is usually necessary to extract the outer pipe and the inner pipe from the drilling hole to remove the broken rope, which seriously affects the normal drilling work and increases the production cost and labor cost. Summary of the Utility Model
[0004] The utility model provides a downhole wire rope fishing device, which can grab the broken wire rope outside the drill pipe without removing the outer pipe and the inner pipe of the drilling, and has the advantages of simple operation, high grabbing efficiency, saving manpower and material resources, and reducing the drilling cost.
[0005] The above object of the utility model is achieved by the following technical solutions:
[0006] A downhole wire rope fishing device includes a bracket. A rope winder is rotatably connected to the top of the bracket. The rope of the rope winder is connected to a wire rope gripper. The wire rope gripper includes a support frame, an electric push rod, a bracket ring and clamping jaws. The electric push rod is fixed above the support frame. The lower part of the support frame is fixedly connected to the bracket ring through a first support rod. The telescopic rod of the electric push rod faces the bracket ring. The clamping jaws include at least two and are circumferentially hinged to the bracket ring. One ends of the clamping jaws close to the support frame are respectively connected to the telescopic rod of the electric push rod through a telescopic rotation mechanism; an electromagnetic chuck is connected below the bracket ring.
[0007] In the above downhole wire rope fishing device, the telescopic rotation mechanism includes a fixed disk and an insertion plate. The fixed disk is fixedly connected to the bottom end of the telescopic rod of the electric push rod. The fixed disk is circumferentially hinged with insertion plates corresponding to the respective clamping jaws. One end of the insertion plate is hinged to the fixed disk. A slot corresponding to the insertion plate is provided at one end of the clamping jaw close to the insertion plate. The other end of the insertion plate is embedded in the slot of the corresponding clamping jaw.
[0008] In the above downhole wire rope fishing device, both the clamping jaws and the insertion plates are three.
[0009] The above-mentioned downhole wire rope fishing device, wherein the jaw includes a strip-shaped jaw body and a strip-shaped jaw head, the included angle between the jaw body and the jaw head is 115-135°, and the axis of the slot coincides with the axis of the jaw body.
[0010] The above-mentioned downhole wire rope fishing device, wherein the bracket includes a support plate, the four peripheries of the bottom of the support plate are rotatably connected with legs, and the lower ends of the legs are fixedly connected with rollers.
[0011] The above-mentioned downhole wire rope fishing device, wherein the rope winder includes a U-shaped reel frame, the reel is rotatably connected in the reel frame, a driving motor is fixedly connected to the outside of the reel frame, and the rotating shaft of the driving motor is in transmission connection with the reel.
[0012] The above-mentioned downhole wire rope fishing device, wherein a rotating device for driving the rope winder to rotate is provided on the support plate, the rotating device includes a support column, the lower end of the support column is rotatably supported on the support plate, the upper end of the support column is fixedly connected with the reel frame, a rotating motor is fixedly connected to the bottom of the support plate, and the rotating shaft of the rotating motor is in transmission connection with the support column.
[0013] The above-mentioned downhole wire rope fishing device, wherein a horizontal linear pusher is vertically fixedly connected to the support column, a guide wheel for guiding the rope is provided at the end of the push rod of the electric linear pusher, and an inclined pull rod is provided on the support column, and the other end of the inclined pull rod is fixedly connected to the outer shell of the electric push rod.
[0014] The above-mentioned downhole wire rope fishing device, wherein a power supply device is provided at the bottom of the support plate.
[0015] The above-mentioned downhole wire rope fishing device, wherein an operation handrail is fixedly connected to the support plate.
[0016] In summary, the beneficial technical effects of the present utility model are as follows:
[0017] By providing a movable bracket in the present utility model, a rope winder is rotatably connected to the top of the bracket, the rope of the rope winder is connected to a wire rope gripper, the wire rope gripper includes a support frame, an electric push rod, a bracket ring and jaws, the electric push rod is fixed above the support frame, the support frame is fixedly connected with the bracket ring through a first strut below, the telescopic rod of the electric push rod faces the bracket ring, the jaws include at least two and are hinged to the bracket ring along the circumferential direction of the bracket ring, and the ends of the multiple jaws close to the support frame are respectively connected to the telescopic rod of the electric push rod through a telescopic rotating mechanism, and an electromagnetic chuck is connected below the bracket ring. By controlling the movement of the telescopic rod of the electric push rod, the multiple jaws can be opened or closed through the telescopic rotating mechanism, so as to realize the clamping of the broken wire rope. By providing an electromagnetic chuck, the broken wire rope can be attracted, so that the broken wire rope moves to the range where the jaws can clamp, ensuring the efficiency and reliability of the jaws to grab the broken wire rope. Brief Description of the Drawings
[0018] Figure 1 is a structural schematic diagram of the present utility model;
[0019] Figure 2 is a structural schematic diagram of the bracket and the rope winder of the present utility model;
[0020] Figure 3 is a structural schematic diagram when the steel wire rope gripper of the present utility model is closed.
[0021] Explanation of the reference numerals in the figure: 1, bracket; 11, support plate; 12, leg; 13, roller; 14, operating handrail; 2, rope winder; 21, reel frame; 22, reel; 23, drive motor; 24, rope; 3, steel wire rope gripper; 31, support frame; 311, first support rod; 32, electric push rod; 33, bracket ring; 331, second support rod; 34, jaw; 341, jaw body; 342, jaw head; 35, telescopic rotating mechanism; 351, fixed disk; 352, insertion plate; 36, electromagnetic chuck; 4, rotating device; 41, support column; 42, rotating motor; 5, linear thruster; 51, guide wheel; 6, diagonal tie rod; 7, power supply device. Detailed Description of the Preferred Embodiment
[0022] The following will further describe the present utility model in detail with reference to the Figures 1-3 accompanying drawings.
[0023] As Figure 1As shown in the figure, a downhole wire rope fishing device includes a bracket 1. A rope winder 2 is rotatably connected to the top of the bracket 1. The rope 24 of the rope winder 2 is connected to a wire rope gripper 3. The wire rope gripper 3 includes a support frame 31, an electric push rod 32, a bracket ring 33 and clamping jaws 34. The electric push rod 32 is fixed above the support frame 31. The lower part of the support frame 31 is fixedly connected to the bracket ring 33 through a first support rod 311. In this embodiment, the first support rod 311 includes three and is evenly distributed along the circumferential direction of the bracket ring 33. The telescopic rod of the electric push rod 32 faces the bracket ring 33. The clamping jaws 34 include at least two and are hinged to the bracket ring 33 along the circumferential direction of the bracket ring 33. One ends of the plurality of clamping jaws 34 close to the support frame 31 are respectively connected to the telescopic rod of the electric push rod 32 through a telescopic rotation mechanism 35. By the up and down telescoping of the telescopic rod of the electric push rod 32, the telescopic rotation mechanism 35 can drive the clamping jaws 34 hinged to the bracket ring 33 to perform closing or opening actions, so as to realize the grasping or releasing of the broken wire rope; a magnetic chuck 36 is connected below the bracket ring 33. The magnetic chuck 36 is disc-shaped, and the diameter of the magnetic chuck 36 is smaller than the diameter of the bracket ring 33 to avoid interference when the clamping jaws 34 are closed. After the magnetic chuck 36 is energized, it generates a magnetic force, which can generate a certain suction force on the broken wire rope, so that the broken wire rope can enter the range that can be clamped by the clamping jaws 34, facilitating the clamping work of the clamping jaws 34 on the broken wire rope.
[0024] As Figure 3 shown, the magnetic chuck 36 and the bracket ring 33 are fixedly connected through three second support rods 331, and the three second support rods 331 are evenly distributed along the circumferential direction of the bracket ring 33.
[0025] As Figure 3 shown, the telescopic rotation mechanism 35 of this embodiment includes a fixed disk 351 and an insertion plate 352. The fixed disk 351 is vertically fixedly connected to the bottom end of the telescopic rod of the electric push rod 32. The fixed disk 351 is disc-shaped and is hinged with insertion plates 352 corresponding to the respective clamping jaws 34 along the circumferential direction. One end of the insertion plate 352 is hinged to the fixed disk 351. The rotation plane of the insertion plate 352 on the fixed disk 351 is a vertical plane and coincides with the axis of the telescopic rod of the electric push rod 32. A slot corresponding to the insertion plate 352 is provided at one end of the clamping jaw 34 close to the insertion plate 352, and the other end of the insertion plate 352 is embedded in the slot of the corresponding clamping jaw 34.
[0026] In this embodiment, both the clamping jaws 34 and the insertion plates 352 are three; the clamping jaws 34 include a strip-shaped jaw body 341 and a strip-shaped jaw head 342. The angle between the jaw body 341 and the jaw head 342 is 115 - 135°, and the axis of the slot coincides with the axis of the jaw body 341.
[0027] As Figure 3As shown in the figure, when the telescopic rod of the electric push rod 32 expands and contracts, it can drive the insertion plate 352 to rotate on the fixed plate 351, and at the same time drive the insertion plate 352 to move in and out of the slot of the clamping jaw 34; during the above process, when the telescopic rod of the electric push rod 32 moves downward, when the insertion plate 352 is inserted into the slot of the clamping jaw 34, it can synchronously drive the clamping jaw heads 342 to separate from each other, that is, the three clamping jaws 34 open; when the telescopic rod of the electric push rod 32 moves upward and the insertion plate 352 is withdrawn from the slot of the clamping jaw 34, it can synchronously drive the clamping jaw heads 342 to approach each other, that is, the three clamping jaws 34 close.
[0028] As Figure 2 shown in the figure, the bracket 1 of this embodiment includes a support plate 11. The four peripheries of the bottom of the support plate 11 are rotatably connected to the support legs 12. The support legs 12 are rotatably supported at the bottom of the support plate 11, and the lower ends of the support legs 12 are fixedly connected with rollers 13; an operation armrest 14 is fixedly connected to the support plate 11. By pushing the operation armrest 14, the bracket 1 can be moved to the salvage position through the rotation of the support legs 12 and the rollers 13, which is convenient for the salvage work. Operation buttons can be arranged on the top of the operation armrest 14 for operating and controlling the working states of the drive motor 23, the rotation motor 42, the electric push rod 32, the linear thruster 5 and the electromagnetic chuck 36.
[0029] The rope winder 2 of this embodiment includes a U-shaped reel frame 21. The reel 22 is horizontally rotatably connected in the reel frame 21. A drive motor 23 is fixedly connected to the outside of the reel frame 21. The rotating shaft of the drive motor 23 is in transmission connection with the reel 22. The drive motor 23 can drive the forward and reverse rotation of the reel 22, so as to realize the tightening or release of the rope 24 by the reel 22, and finally realize the positioning of the wire rope gripper 3.
[0030] In order to accurately position the wire rope gripper 3, a rotating device 4 for driving the rope winder 2 to rotate is provided on the support plate 11. The rotating device 4 includes a support column 41. The lower end of the support column 41 is rotatably supported on the support plate 11, the upper end of the support column 41 is fixedly connected with the reel frame 21, and a rotation motor 42 is fixedly connected to the bottom of the support plate 11. The rotating shaft of the rotation motor 42 is fixedly connected to the support column 41 in transmission. By controlling the rotation motor 42, the rotation direction of the support column 41 can be driven, so as to control the orientation of the rope winder 2, and finally realize the positioning of the direction of the wire rope gripper 3.
[0031] As Figure 2As shown in the figure, specifically, a horizontal linear thruster 5 is vertically and fixedly connected to the support column 41. A guide wheel 51 for guiding the rope 24 is provided at the end of the push rod of the linear thruster 5. An inclined stay bar 6 is provided on the support column 41, and the other end of the inclined stay bar 6 is fixedly connected to the outer shell of the electric push rod 32, so as to improve the force-bearing of the linear thruster through the inclined stay bar 6. When the linear thruster 5 works, the elongation or contraction of the push rod of the linear thruster 5 can be controlled, so as to ensure that the wire rope gripper 3 can be controlled directly above the pipe orifice of the outer pipe of the drill pipe, facilitating the accurate release of the wire rope gripper 3 into the outer pipe.
[0032] A power supply device 7 is provided at the bottom of the support plate 11, and the power supply device 7 can supply electric energy to the drive motor 23, the rotary motor 42, the electric push rod 32, the linear thruster 5 and the electromagnetic chuck 36.
[0033] When the utility model works, the jaws 34 are firstly in an open state, and then the rotary motor 42 is started to position the wire rope gripper 3. The linear thruster 5 is started, and the wire rope gripper 3 is positioned directly above the pipe orifice of the outer pipe in cooperation with the rope 24. The drive motor 23 is started, and the rope 24 is released to release the wire rope gripper 3 into the outer pipe. When the wire rope gripper 3 is released in place, the rope 24 will become slack at this time. The electromagnetic chuck 36 is started to adsorb the wire rope in the outer pipe, and the broken wire rope is located within the clamping range of the jaws 34. The electric push rod 32 is started to make the telescopic rod of the electric push rod 32 contract upward, driving the plug board 352 to move upward and withdraw a part from the slot of the jaws 34. At this time, the plug board 352 drives the jaw body 341 to rotate outward, synchronously driving the jaw head 342 to rotate inward, so as to realize the mutual gathering and closing of the three jaws 34, thereby realizing the clamping of the broken wire rope by the jaws 34. Then the drive motor 23 is started again to make the reel 22 rotate reversely, winding the rope 24 onto the reel 22. Through the winding of the rope 24, the wire rope gripper 3 is lifted out of the outer pipe, the power supply of the electromagnetic chuck 36 is cut off, and the telescopic rod of the electric push rod 32 is controlled to extend, so that the three jaws 34 open, completing the work of fishing out the broken wire rope from the outer pipe.
[0034] The embodiments of this specific implementation manner are all preferred embodiments of the utility model, and do not limit the protection scope of the utility model accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the utility model should be covered within the protection scope of the utility model.
Claims
1. A downhole wire rope fishing device, characterized in that: It includes a bracket, the top of the bracket is rotatably connected to a rope reel, the rope of the rope reel is connected to a wire rope grabber, the wire rope grabber includes a support frame, an electric push rod, a bracket ring and a clamp, the electric push rod is fixed on the top of the support frame, the bottom of the support frame is fixedly connected to the bracket ring through a first support rod, the telescopic rod of the electric push rod faces the bracket ring, the clamp includes at least two and is hinged on the bracket ring along the circumference of the bracket ring, and the ends of the multiple clamps close to the support frame are respectively connected to the telescopic rods of the electric push rod through a telescopic rotation mechanism; an electromagnetic suction cup is connected below the bracket ring.
2. The downhole wire rope fishing device according to claim 1, characterized in that: The telescopic rotation mechanism includes a fixed plate and a plug plate, the fixed plate is fixedly connected to the bottom end of the telescopic rod of the electric push rod, the fixed plate is hinged with a plug plate corresponding to the corresponding clamping claw along the circumferential direction, one end of the plug plate is hinged to the fixed plate, the clamping claw is provided with a slot corresponding to the plug plate near one end of the plug plate, and the other end of the plug plate is embedded in the slot of the corresponding clamping claw.
3. The downhole wire rope fishing device according to claim 2, characterized in that: There are three clamping claws and three inserting plates.
4. The downhole wire rope fishing device according to claim 2, characterized in that: The clamping jaw comprises an elongated jaw body and an elongated jaw head, the angle between the jaw body and the jaw head is 115-135 degrees, and the axis of the slot coincides with the axis of the jaw body.
5. The downhole wire rope fishing device according to claim 1, characterized in that: The bracket comprises a support plate, the bottom of the support plate is rotatably connected to the support legs, and the lower ends of the support legs are fixedly connected to rollers.
6. The downhole wire rope fishing device according to claim 1, characterized in that: The rope reel comprises a U-shaped reel frame, the reel is rotatably connected inside the reel frame, the outer side of the reel frame is fixedly connected to a driving motor, and the rotating shaft of the driving motor is drivingly connected to the reel.
7. The downhole wire rope fishing device according to claim 5, characterized in that: The support plate is provided with a rotating device for driving the rope reel to rotate, and the rotating device includes a support column, the lower end of the support column is rotatably supported on the support plate, the upper end of the support column is fixedly connected to the reel frame, the bottom of the support plate is fixedly connected to the rotating motor, and the rotating shaft of the rotating motor is transmission-connected to the support column.
8. The downhole wire rope fishing device according to claim 7, characterized in that: A horizontal linear thruster is vertically fixedly connected to the support column, a guide wheel for guiding the rope is arranged at the end of the push rod of the linear thruster, an inclined tie rod is arranged on the support column, and the other end of the inclined tie rod is fixedly connected to the outer shell of the electric push rod.
9. The downhole wire rope fishing device according to claim 5, characterized in that: A power supply device is arranged at the bottom of the supporting plate.
10. The downhole wire rope fishing device according to claim 5, characterized in that: The support plate is fixedly connected to an operating armrest.