CN115788343B - Drill bit fishing device - Google Patents

Drill bit fishing device Download PDF

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Publication number
CN115788343B
CN115788343B CN202310069952.8A CN202310069952A CN115788343B CN 115788343 B CN115788343 B CN 115788343B CN 202310069952 A CN202310069952 A CN 202310069952A CN 115788343 B CN115788343 B CN 115788343B
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Prior art keywords
box body
drill bit
component
rod
annular plate
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CN202310069952.8A
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CN115788343A (en
Inventor
赵果
范玉栋
田慧
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Shengli Oil Field Wanhe Oil Construction Technique ltd LLC
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Shengli Oil Field Wanhe Oil Construction Technique ltd LLC
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Publication of CN115788343A publication Critical patent/CN115788343A/en
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Abstract

The invention provides a drill bit salvaging device, which belongs to the technical field of drill bit salvaging and comprises a top support component, a lifting component, a box body, a driving component, a locking component and an elastic supporting component, wherein the box body is arranged at the output end of the lifting component and is controlled by the lifting component to move up and down along a pile hole, one side of the box body is opened, the top support component is arranged on the outer wall of the box body and can fix the box body in the pile hole, the driving component is arranged in the box body, the locking component is arranged at the output end of the driving component and is controlled by the driving component to rotate around the drill bit, and the elastic supporting component is arranged in the box body. Compared with the prior art, the embodiment of the invention can realize automatic salvage of the drill bit, avoids the potential safety hazard of salvaging the drill bit in the operation of descending the well of the staff, and has the advantages of good salvage effect and high safety of the drill bit.

Description

Drill bit fishing device
Technical Field
The invention belongs to the technical field of drill bit salvaging, and particularly relates to a drill bit salvaging device.
Background
Occasionally, the drill bit falls off during the pile foundation drilling or boring process, and if the drill bit falls off, the drill bit must be quickly and timely salvaged out to avoid affecting the subsequent construction progress.
The current pile driving drill bit is for being convenient for follow-up salvage operation, can offer the level at the drill bit top and run through the through hole of drill bit body generally, when need salvage the drill bit, the staff dives the drilling bottom, pass the through hole with tie up the drill bit with wire rope, cooperate external hoisting equipment to pull wire rope afterwards, hang out the drill bit from the stake hole is inside, realize the salvage of drill bit, this kind of drill bit salvage mode is comparatively traditional, on the one hand, the inside water of stake hole is very turbid, lead to the staff sight to be obstructed, unable quick tie up the drill bit, on the other hand stake hole internal environment is very complicated, there is the hidden danger that the stake hole collapsed, it is buried to lead to the staff easily, consequently, need provide a safe efficient drill bit salvage device in order to satisfy the demand.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved by the embodiment of the invention is to provide a drill bit salvaging device.
In order to solve the technical problems, the invention provides the following technical scheme:
a drill bit salvaging device comprises a top support component, a lifting component, a box body, a driving component, a locking component and an elastic supporting component,
the box body is arranged at the output end of the lifting assembly and is controlled by the lifting assembly to move up and down along the pile hole,
one side of the box body is provided with an opening,
the top support component is arranged on the outer wall of the box body and can fix the box body in the pile hole,
the driving component is arranged in the box body, the locking component is arranged at the output end of the driving component and controlled by the driving component to rotate around the drill bit,
the elastic support piece is arranged inside the box body, and when the locking component rotates to the through hole of the side wall of the top of the drill bit, the elastic support piece can drive the locking component to be inserted into the through hole.
As a further improvement of the invention: the top support component comprises a flexible gas storage layer, a gas transmission hard pipe and a gas transmission hose,
the flexible gas storage layer is arranged on the outer wall of the box body, one end of the gas transmission hard tube is communicated with the inner cavity of the flexible gas storage layer, the other end of the gas transmission hard tube penetrates through the box body and is communicated with the gas transmission hose, and one end, far away from the gas transmission hard tube, of the gas transmission hose is connected with the gas pump.
As a further improvement of the invention: the driving component comprises a motor, a second annular plate, a gear and an annular rack,
the motor is fixedly arranged on the inner wall of the box body, the gear is arranged at the output end of the motor, the second annular plate is rotatably arranged in the box body, the annular rack is fixedly arranged on the outer wall of the second annular plate and meshed with the gear,
the locking assembly comprises a lock rod and a guide sleeve,
the guide sleeve is fixedly arranged at one end of the second annular plate, and the lock rod penetrates through the guide sleeve and is in movable fit with the guide sleeve.
As a further improvement of the invention: the first annular plate is fixedly arranged in the box body, the second annular plate is sleeved outside the first annular plate and is in running fit with the first annular plate through a bearing,
the first annular bulge is fixedly arranged on the outer wall of the first annular plate, and the second annular bulge is lapped on one side of the first annular bulge.
As a still further improvement of the invention: and one end of the lock rod is fixedly provided with an end block, one end of the elastic support piece is connected with the end block, and the other end of the elastic support piece is connected with the guide sleeve so as to provide elastic tension for the lock rod.
As a still further improvement of the invention: one end of the second annular plate is also provided with a positioning sleeve, and the positioning sleeve and the guiding sleeve are distributed relatively.
As a still further improvement of the invention: a limit component is arranged in the box body, one end of the limit component is connected with the end block, the other end is connected with the flexible gas storage layer,
in the process of lowering the box body along the interior of the pile hole, the limiting component can limit the end block so as to drive one end of the lock rod to be far away from the drill bit,
and in the expansion process of the flexible gas storage layer, the limiting assembly can be driven to move so as to release the limit of the end block.
As a still further improvement of the invention: the limiting component comprises a limiting rod, an elastic piece, an extension rod, a push rod and a pressing plate,
the side wall of the end block is provided with a jack into which one end of the limit rod can be inserted, the extension rod is fixedly arranged on one side of the limit rod, the pressing plate is arranged between the box body and the flexible air storage layer, one end of the push rod is connected with the pressing plate, the other end of the push rod penetrates through the side wall of the box body and is provided with an inclined plane,
the locating block is fixedly arranged on the inner wall of the box body, the limiting rod penetrates through the locating block and is in movable fit with the locating block, a stop block is fixedly arranged on the limiting rod, the stop block is connected with the locating block through an elastic piece, and the elastic piece can provide elastic tension for the limiting rod so as to drive the extension rod to be attached to the inclined plane.
Compared with the prior art, the invention has the beneficial effects that:
in the embodiment of the invention, when the drill bit broken in the pile hole is required to be salvaged, the box body can be lifted and placed along the pile hole through the lifting assembly, when the box body is lowered to the position of the drill bit along the pile hole, the top of the drill bit can enter the inner side of the box body from the opening on one side of the box body, the box body is fixed through the supporting assembly, then the locking assembly is driven to rotate around the top of the drill bit through the driving assembly, when the locking assembly rotates to the opening on the top of the drill bit, the elastic supporting member drives the locking assembly to be inserted into the opening, thereby realizing locking connection between the box body and the drill bit, and the box body is driven to move upwards by the lifting assembly to drive the drill bit to move upwards when being moved upwards so as to realize automatic salvaging of the drill bit.
Drawings
FIG. 1 is a schematic diagram of a bit fishing apparatus;
FIG. 2 is a schematic diagram of the structure of a casing in a bit fishing device;
FIG. 3 is an enlarged schematic view of area A of FIG. 1;
FIG. 4 is an enlarged schematic view of area B of FIG. 1;
in the figure: 10-drill bit, 20-jack assembly, 201-flexible gas storage layer, 202-gas transmission hard tube, 203-gas transmission hose, 30-cable, 40-box, 401-first annular plate, 402-first annular protrusion, 403-roller, 50-drive assembly, 501-motor, 502-second annular plate, 503-gear, 504-annular rack, 505-second annular protrusion, 60-locking assembly, 601-lock rod, 602-guide sleeve, 603-positioning sleeve, 604-end block, 70-limit assembly, 701-limit rod, 702-positioning block, 703-elastic member, 704-stop, 705-extension rod, 706-push rod, 707-press plate, 80-elastic support.
Description of the embodiments
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
Referring to fig. 1, the present embodiment provides a bit salvaging device, including a jack-up assembly 20, a jack-up assembly, a box 40, a driving assembly 50, a locking assembly 60 and an elastic support 80, wherein the box 40 is mounted at an output end of the jack-up assembly and is controlled by the jack-up assembly to move up and down along a pile hole, one side of the box 40 is opened, the jack-up assembly 20 is disposed on an outer wall of the box 40 and can fix the box 40 inside the pile hole, the driving assembly 50 is mounted inside the box 40, the locking assembly 60 is disposed at an output end of the driving assembly 50 and is controlled by the driving assembly 50 to rotate around a bit 10, the elastic support 80 is disposed inside the box 40, and when the locking assembly 60 rotates to a through hole on a top side wall of the bit 10, the elastic support 80 can drive the locking assembly 60 to be inserted into the through hole.
When the drill bit 10 broken in the pile hole is required to be salvaged, the box body 40 can be lifted and placed along the pile hole through the lifting assembly, when the box body 40 is placed to the position of the drill bit 10 along the pile hole, the top of the drill bit 10 can enter the inner side of the box body 40 from the opening on one side of the box body 40, the box body 40 is fixed through the jacking assembly 20, then the locking assembly 60 is driven to rotate around the top of the drill bit 10 through the driving assembly 50, when the locking assembly 60 rotates to the opening on the top of the drill bit 10, the elastic supporting member 80 drives the locking assembly 60 to be inserted into the opening, so that locking connection between the box body 40 and the drill bit 10 is realized, the box body 40 is driven to move upwards along the pile hole by the lifting assembly, and the drill bit 10 is driven to move upwards when the box body 40 moves upwards, so that automatic salvaging of the drill bit 10 is realized.
Referring to fig. 1, in one embodiment, the top support assembly 20 includes a flexible air storage layer 201, an air rigid pipe 202 and an air hose 203, wherein the flexible air storage layer 201 is disposed on an outer wall of the case 40, one end of the air rigid pipe 202 is communicated with an inner cavity of the flexible air storage layer 201, the other end passes through the case 40 and is communicated with the air hose 203, and an end of the air hose 203 away from the air rigid pipe 202 is connected with an air pump (not shown in the figure).
When the box 40 is placed to the position of the drill bit 10 along the inside of the pile hole, air is conveyed to the inside of the air conveying hose 203 through the air pump, the air enters the air conveying hard pipe 202 through the air conveying hose 203, then enters the inside of the flexible air storage layer 201 through the air conveying hard pipe 202, and further drives the flexible air storage layer 201 to expand, and further tightens the inner wall of the pile hole to fix the box 40, after the box 40 is fixed, the driving assembly 50 drives the locking assembly 60 to rotate around the outside of the drill bit 10 until the locking assembly 60 rotates to the opening of the upper part of the drill bit 10, and the elastic supporting piece 80 drives the locking assembly 60 to be inserted into the opening so as to connect the box 40 and the drill bit 10 into a whole.
In one embodiment, the flexible air reservoir layer 201 may be a rubber layer or a silicone layer, which is not limited herein.
Referring to fig. 1 and 3, in one embodiment, the driving assembly 50 includes a motor 501, a second ring plate 502, a gear 503 and an annular rack 504, the motor 501 is fixedly mounted on an inner wall of the case 40, the gear 503 is disposed at an output end of the motor 501, the second ring plate 502 is rotatably disposed inside the case 40, the annular rack 504 is fixedly mounted on an outer wall of the second ring plate 502 and is meshed with the gear 503, the locking assembly 60 includes a locking rod 601 and a guiding sleeve 602, the guiding sleeve 602 is fixedly disposed at one end of the second ring plate 502, and the locking rod 601 penetrates through the guiding sleeve 602 and is movably matched with the guiding sleeve 602.
After the flexible gas storage layer 201 expands and tightens the box 40, the motor 501 drives the gear 503 to rotate, the second annular plate 502 is driven to rotate through the meshing action of the gear 503 and the annular rack 504, the guide sleeve 602 can be driven to rotate when the second annular plate 502 rotates, and then the lock rod 601 is driven to rotate around the drill bit 10, when the lock rod 601 rotates to the position of the through hole at the top of the drill bit 10, the elastic support piece 80 drives the lock rod 601 to move relatively to the guide sleeve 602, one end of the lock rod 601 is inserted into the through hole, then air in the flexible gas storage layer 201 is pumped out of the gas transmission hard tube 202 and the gas transmission hose 203 through the air pump, the flexible gas storage layer 201 is collapsed, the fixation on the box 40 is relieved, the lifting assembly drives the box 40 to move upwards along the pile hole, the lock rod 601 acts on the inner wall of the through hole when the box 40 moves upwards, and then the drill bit 10 is pulled to move upwards synchronously, and automatic salvage of the drill bit 10 is achieved.
Referring to fig. 3, in one embodiment, a first annular plate 401 is fixedly disposed inside the casing 40, a second annular plate 502 is sleeved outside the first annular plate 401 and is in running fit with the first annular plate 401 through a bearing, a second annular protrusion 505 is fixedly disposed at one end of the second annular plate 502, a first annular protrusion 402 is fixedly disposed on an outer wall of the first annular plate 401, and the second annular protrusion 505 is lapped on one side of the first annular protrusion 402, so that when the casing 40 moves up along the pile hole, the first annular protrusion 402 can limit the second annular protrusion 505, and the second annular plate 502 is prevented from being separated from the outer side of the first annular plate 401.
Referring to fig. 3 and 4, in one embodiment, an end block 604 is fixedly disposed on one end of the lock rod 601, and the elastic support 80 is connected to the end block 604 at one end and connected to the guide sleeve 602 at the other end, so as to provide elastic tension to the lock rod 601.
When the second ring plate 502 rotates along the outer side of the first ring plate 401, the guide sleeve 602, the lock rod 601, the end block 604 and the elastic support 80 can be driven to rotate synchronously, and when the lock rod 601 rotates to the position of the through hole, the elastic support 80 pulls the lock rod 601 to slide compared with the guide sleeve 602, so that one end of the lock rod 601 is inserted into the through hole.
Referring to fig. 1, in one embodiment, a positioning sleeve 603 is further disposed at one end of the second ring plate 502, and the positioning sleeve 603 is distributed opposite to the guiding sleeve 602.
When the elastic supporting piece 80 pulls the lock rod 601 to slide compared with the guide sleeve 602, and one end of the lock rod 601 is inserted into the through hole, the lock rod 601 can penetrate through the through hole and is inserted into the positioning sleeve 603, so that in the process that the box body 40 drives the drill bit 10 to move upwards along the pile hole, one end of the lock rod 601 is pulled by the guide sleeve 602, the other end of the lock rod is pulled by the positioning sleeve 603, and even stress of the lock rod 601 is guaranteed, and stability of the drill bit 10 in the fishing process is improved.
Referring to fig. 1, in one embodiment, a limiting component 70 is further disposed inside the casing 40, one end of the limiting component 70 is connected to the end block 604, the other end is connected to the flexible air storage layer 201, during the process of lowering the casing 40 along the pile hole, the limiting component 70 can limit the end block 604 so as to drive one end of the lock rod 601 away from the drill bit 10, and during the expansion process of the flexible air storage layer 201, the limiting component 70 can be driven to move so as to release the limit on the end block 604.
In the process that the lifting assembly drives the box 40 to descend along the pile hole, the limiting assembly 70 limits the end block 604, so that the top of the drill bit 10 can smoothly extend into the inner side of the box 40 from the opening of the box 40, at the moment, one end of the lock rod 601 is far away from the drill bit 10, when the flexible air storage layer 201 expands to tighten the box 40, the limiting assembly 70 can be driven to move, the limiting of the end block 604 is relieved, at the moment, the elastic support 80 pulls the end block 604 to drive the lock rod 601 to slide relative to the guide sleeve 602, the lock rod 601 props against the side wall of the top of the drill bit 10, the motor 501 drives the gear 503 to rotate, the guide sleeve 602, the lock rod 601, the end block 604 and the elastic support 80 are driven to synchronously rotate by the meshing effect of the gear 503 and the annular rack 504, at the moment, one end of the lock rod 601 is abutted against the side wall of the top of the drill bit 10, and when one end of the lock rod 601 rotates to the position of the opening, the elastic support 80 can continuously pull the end block 604, and then the lock rod 601 continuously slides along the guide sleeve 602, so that the lock rod 601 penetrates through the through hole and is inserted into the inside the guide sleeve 603, and the box 40 is connected with the drill bit 10 integrally.
Referring to fig. 4, in one embodiment, the limiting assembly 70 includes a limiting rod 701, an elastic member 703, an extension rod 705, a push rod 706 and a pressing plate 707, a jack into which one end of the limiting rod 701 can be inserted is provided on a side wall of the end block 604, the extension rod 705 is fixedly disposed on one side of the limiting rod 701, the pressing plate 707 is disposed between the case 40 and the flexible air storage layer 201, one end of the push rod 706 is connected with the pressing plate 707, the other end of the push rod 706 passes through a side wall of the case 40 and is provided with an inclined plane, a positioning block 702 is fixedly disposed on an inner wall of the case 40, the limiting rod 701 penetrates through the positioning block 702 and is movably matched with the positioning block 702, a stop block 704 is fixedly disposed on the limiting rod 701, the stop block 704 is connected with the positioning block 702 through the elastic member 703, and the elastic member 703 can provide elastic tension to the limiting rod 701 so as to drive the extension rod 705 to adhere to the inclined plane.
In the process that the box 40 is lowered along the pile hole, elastic tension is provided for the limiting rod 701 through the elastic piece 703, the extending rod 705 is attached to the inclined plane, meanwhile, one end of the limiting rod 701 is inserted into the jack to limit the end block 604, the locking rod 601 is far away from the drill bit 10, when the flexible air storage layer 201 expands and tightens the box 40, the pressing plate 707 can be pushed to move, the push rod 706 is driven to move, the extending rod 705 can be pushed through the inclined plane when the push rod 706 moves, the limiting rod 701 is driven to move, one end of the limiting rod 701 is moved out of the jack to release the limit on the end block 604, then the elastic supporting piece 80 pulls the end block 604 to drive the locking rod 601 to slide compared with the guide sleeve 602, the locking rod 601 is propped against the side wall at the top of the drill bit 10, the gear 503 is driven to rotate through the motor 501, at the moment, one end of the locking rod 601 abuts against the side wall at the top of the drill bit 10 to rotate under the meshing action of the gear 503 and the annular rack 504, when one end of the locking rod 601 rotates to the position of the through hole, the elastic supporting piece 80 can pull the end block 604, and the locking rod 601 can be further pulled by the elastic supporting piece 80 to continue to be connected with the drill bit 601 in the inside of the drill bit 10, and the drill bit 10 is further connected with the drill bit 10, and the drill bit 10.
Referring to fig. 2, in one embodiment, the outer wall of the casing 40 is further rotatably provided with a plurality of rollers 403, and when the casing 40 moves up and down along the pile hole, the rollers 403 can provide rolling protection for the casing 40, so as to prevent the casing 40 from rubbing against the inner wall of the pile hole and prevent the casing 40 from being damaged.
In one embodiment, the elastic support 80 and the elastic member 703 may be a spring or a metal elastic sheet, which is not limited herein.
Referring to fig. 1, in one embodiment, the lifting assembly includes a crane and a cable 30 connected to the crane, the cable 30 being connected to the housing 40 at an end remote from the crane.
The cable 30 is controlled by the crane to be wound and unwound, when the cable 30 is unwound, the box body 40 can be lowered, the box body 40 moves downwards along the pile hole, and when the cable 30 is wound, the box body 40 can be lifted, so that the box body 40 moves upwards along the pile hole.
In the embodiment of the invention, when the drill bit 10 broken in the pile hole is required to be salvaged, the box body 40 can be lifted along the pile hole by the lifting assembly, when the box body 40 is lowered to the position of the drill bit 10 along the pile hole, the top of the drill bit 10 can enter the inner side of the box body 40 from the opening on one side of the box body 40, the box body 40 is fixed by the jacking assembly 20, then the locking assembly 60 is driven to rotate around the top of the drill bit 10 by the driving assembly 50, when the locking assembly 60 rotates to the opening on the top of the drill bit 10, the elastic supporting member 80 drives the locking assembly 60 to be inserted into the opening, thereby realizing locking connection between the box body 40 and the drill bit 10, and the box body 40 is driven to move upwards along the pile hole by the lifting assembly, so that the drill bit 10 is driven to move upwards when the box body 40 moves upwards, and the automatic salvage of the drill bit 10 is realized.
While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (3)

1. A drill bit salvaging device is characterized by comprising a top support component, a lifting component, a box body, a driving component, a locking component and an elastic supporting component,
the box body is arranged at the output end of the lifting assembly and is controlled by the lifting assembly to move up and down along the pile hole,
one side of the box body is provided with an opening,
the top support component is arranged on the outer wall of the box body and can fix the box body in the pile hole,
the driving component is arranged in the box body, the locking component is arranged at the output end of the driving component and controlled by the driving component to rotate around the drill bit,
the elastic supporting piece is arranged in the box body, when the locking component rotates to the through hole of the side wall of the top of the drill bit, the elastic supporting piece can drive the locking component to be inserted into the through hole,
the top support component comprises a flexible gas storage layer, a gas transmission hard pipe and a gas transmission hose,
the flexible gas storage layer is arranged on the outer wall of the box body, one end of the gas transmission hard tube is communicated with the inner cavity of the flexible gas storage layer, the other end of the gas transmission hard tube penetrates through the box body and is communicated with the gas transmission hose, one end of the gas transmission hose, which is far away from the gas transmission hard tube, is connected with the gas pump,
the driving component comprises a motor, a second annular plate, a gear and an annular rack,
the motor is fixedly arranged on the inner wall of the box body, the gear is arranged at the output end of the motor, the second annular plate is rotatably arranged in the box body, the annular rack is fixedly arranged on the outer wall of the second annular plate and meshed with the gear,
the locking assembly comprises a lock rod and a guide sleeve,
the guide sleeve is fixedly arranged at one end of the second annular plate, the lock rod penetrates through the guide sleeve and is movably matched with the guide sleeve,
one end of the lock rod is fixedly provided with an end block, one end of the elastic supporting piece is connected with the end block, the other end of the elastic supporting piece is connected with the guide sleeve so as to provide elastic tension for the lock rod,
a limit component is arranged in the box body, one end of the limit component is connected with the end block, the other end is connected with the flexible gas storage layer,
in the process of lowering the box body along the interior of the pile hole, the limiting component can limit the end block so as to drive one end of the lock rod to be far away from the drill bit,
in the expansion process of the flexible gas storage layer, the limiting component can be driven to move so as to release the limit of the end block,
the limiting component comprises a limiting rod, an elastic piece, an extension rod, a push rod and a pressing plate,
the side wall of the end block is provided with a jack into which one end of the limit rod can be inserted, the extension rod is fixedly arranged on one side of the limit rod, the pressing plate is arranged between the box body and the flexible air storage layer, one end of the push rod is connected with the pressing plate, the other end of the push rod penetrates through the side wall of the box body and is provided with an inclined plane,
the locating block is fixedly arranged on the inner wall of the box body, the limiting rod penetrates through the locating block and is in movable fit with the locating block, a stop block is fixedly arranged on the limiting rod, the stop block is connected with the locating block through an elastic piece, and the elastic piece can provide elastic tension for the limiting rod so as to drive the extension rod to be attached to the inclined plane.
2. The drill bit salvaging device according to claim 1, characterized in that a first annular plate is fixedly arranged in the box body, the second annular plate is sleeved outside the first annular plate and is in running fit with the first annular plate through a bearing,
the first annular bulge is fixedly arranged on the outer wall of the first annular plate, and the second annular bulge is lapped on one side of the first annular bulge.
3. The drill bit salvaging device according to claim 1, wherein one end of the second annular plate is further provided with a positioning sleeve, and the positioning sleeve and the guiding sleeve are distributed relatively.
CN202310069952.8A 2023-02-07 2023-02-07 Drill bit fishing device Active CN115788343B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310069952.8A CN115788343B (en) 2023-02-07 2023-02-07 Drill bit fishing device

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Application Number Priority Date Filing Date Title
CN202310069952.8A CN115788343B (en) 2023-02-07 2023-02-07 Drill bit fishing device

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CN115788343A CN115788343A (en) 2023-03-14
CN115788343B true CN115788343B (en) 2023-04-25

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1226336B1 (en) * 1999-11-05 2011-08-17 Halliburton Energy Services, Inc. Drilling formation tester, apparatus and methods of testing and monitoring status of tester
CN104608891A (en) * 2015-02-05 2015-05-13 周文正 Portable rescue salvage device
CN105003222A (en) * 2015-06-25 2015-10-28 山西宏厦第一建设有限责任公司 Method of fishing jammed pipe of 1000m directional drilling machine
CN108799693B (en) * 2018-07-16 2023-09-01 香港中文大学(深圳) Pipeline robot
CN109786608A (en) * 2019-01-29 2019-05-21 吉林工程技术师范学院 A kind of new-energy automobile damping battery case
CN214616437U (en) * 2021-03-31 2021-11-05 成都欣皓地基基础工程有限责任公司 Rotary digging drill bit fisher
CN114439404B (en) * 2022-01-24 2023-01-24 重庆运满机械设备有限公司 Drill bit fisher of rotary drilling rig

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Denomination of invention: A drill bit salvage device

Granted publication date: 20230425

Pledgee: Dongying Rural Commercial Bank Co.,Ltd. Hekou sub branch

Pledgor: SHENGLI OIL FIELD WANHE OIL CONSTRUCTION TECHNIQUE LIMITED LIABILITY Co.,Ltd.

Registration number: Y2024980013418