CN114320168B - Special drill bit for rotary guiding of superhard stratum - Google Patents
Special drill bit for rotary guiding of superhard stratum Download PDFInfo
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- CN114320168B CN114320168B CN202210060407.8A CN202210060407A CN114320168B CN 114320168 B CN114320168 B CN 114320168B CN 202210060407 A CN202210060407 A CN 202210060407A CN 114320168 B CN114320168 B CN 114320168B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of deep drilling, in particular to a drill bit special for rotary steering of superhard strata, which comprises a connecting body, a working main body and a cutting assembly, wherein the working main body is fixedly connected with the upper end of the connecting body; the cutting assembly comprises a cutting block group and a cutting tooth group, the cutting block group is fixedly connected to the excircle of the working main body, and the cutting tooth group is arranged on the cutting block group. The heat conduction cavity, the dry ice functional chamber, the water diversion port group and the heat dissipation hole group are sequentially arranged in the connecting body from top to bottom, the water diversion port group is internally provided with a first water diversion port and a second water diversion port at relative intervals, and the heat dissipation hole group is internally provided with a first heat dissipation mesh and a second heat dissipation mesh at relative intervals. The invention solves the problems of the prior art that the drill bit has untimely heat dissipation in the high-speed use process and poor drilling effect when facing to superhard strata.
Description
Technical Field
The invention relates to the technical field of deep drilling, in particular to a drill bit special for rotary guiding of superhard strata.
Background
The drill bit is a drilling tool, is mainly applied to breaking and dismantling operations performed on hard blocks, lands and the like, and can be applied to machining and manufacturing of a delay precision die sometimes, the drill bit in the prior art is generally single in applicable environment, a cutting object is generally medium hardness, heat generated during high-speed rotation of the drill bit can only be performed through externally-added jet cooling liquid, and high-efficiency and rapid cooling cannot be achieved.
The chinese invention patent of the presently disclosed patent, publication No. CN101310090, entitled earth-boring drill bit with casing component drilling capability, cutting elements for the earth-boring drill bit, and methods of use of the earth-boring drill bit, specifically discloses a drill bit comprising a bit body having a surface on which two different types of cutting elements are disposed, but without modification of the superhard formation and the high temperatures of the drilling process.
Disclosure of Invention
The invention aims to provide a drill bit special for rotary guiding of a superhard stratum, which solves the problems of untimely heat dissipation and poor drilling effect when facing the superhard stratum in the high-speed use process of the drill bit in the prior art.
The invention aims at solving the technical scheme that the device comprises a connector, a working main body and a cutting component, wherein the working main body is fixedly connected with the upper end of the connector, and the cutting component is fixedly connected with the working main body; the cutting assembly comprises a cutting block group and a cutting tooth group, the cutting block group is fixedly connected to the outer circle of the working body, and the cutting tooth group is arranged on the cutting block group; the heat conduction cavity, the dry ice functional chamber, the water diversion port group and the heat dissipation hole group are sequentially arranged in the connecting body from top to bottom, a first water diversion port and a second water diversion port are arranged in the water diversion port group at intervals, and a first heat dissipation mesh and a second heat dissipation mesh are arranged in the heat dissipation hole group at intervals.
It should be noted that, through the heat conduction cavity, dry ice functional chamber, water conservancy diversion mouth group and the louvre group that set up, realize the self-heat dissipation to the drill bit.
The cutting block group comprises a first group and a second group, four first cutting blocks are arranged in the first group, three second cutting blocks are arranged in the second group, the four first cutting blocks are arranged on the outer circle of the working body at intervals, and the three second cutting blocks are respectively positioned between two adjacent first cutting blocks; the first cutting block and the second cutting block are bar-shaped, and the extending directions of the first cutting block and the second cutting block are the same as the extending direction of the working main body; two liquid storage bags are arranged in the dry ice functional chamber, the two liquid storage bags are arranged in a spiral mode, and two ends of the two liquid storage bags are respectively connected with the top and the bottom of the inner wall of the dry ice functional chamber.
It should be noted that multiple heat dissipation is achieved through the liquid storage bag.
The first diversion port is arranged above the first radiating mesh, the second diversion port is arranged above the second radiating mesh, and a transition block for connecting a fastening drill bit is fixedly connected below the radiating hole group; the first diversion port and the second diversion port are both provided with a leakage-proof net, and the thickness of the leakage-proof net is one tenth of the thickness of the first radiating mesh.
The dry ice cubes are prevented from falling out by the leakage-proof net.
Two rows of cutting teeth are arranged in the cutting tooth group, and each first cutting block and each second cutting block are provided with two rows of cutting teeth; the liquid storage bag is made of elastic materials and has the thickness of 100nm.
It should be noted that the liquid storage bag is made of elastic materials, so that the liquid storage bag is prevented from being broken.
Two reinforcing teeth are fixedly connected to one ends of the three first cutting blocks, which are far away from the connecting body; the liquid storage bag is filled with cooling liquid.
The circulating cooling is realized by preventing the cooling liquid in the liquid storage belt.
One end of the working main body, which is far away from the connecting body, is provided with a rounding angle; the width of one end, far away from the connecting body, of the first cutting block is smaller than the width of one end, close to the connecting body, of the first cutting block; the width of one end, far away from the connecting body, of the second cutting block is smaller than the width of one end, close to the connecting body, of the second cutting block; the aperture ratio of the leakage-proof net is 95%, and the thickness of the leakage-proof net is 90nm; the opening ratio of the first heat dissipation mesh and the second heat dissipation mesh is 83%.
The leakage-proof net is provided with holes to ensure that the gas flows smoothly.
The working main body is far away from a plurality of nozzles are arranged on the end face of one end of the connecting body, each nozzle comprises a first nozzle and a second nozzle, and the diameter of the first nozzle is larger than that of the second nozzle. The first nozzle is located at a front end of the second cutting block.
It should be noted that the nozzles with different diameters are arranged to realize the application of different working scenes.
The first cutting block and the second cutting block are respectively provided with a lug, the lugs are positioned at one end of the outer circle of the working main body, which is close to the connecting body, the width of the lugs is equal to that of the first cutting block, and the thickness of the lugs is larger than that of the first cutting block. The cutting teeth are arranged on the convex blocks.
The cutting teeth are connected through the convex blocks, so that the strength of the cutting teeth is enhanced.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the design of the ultra-strong lateral cutting capacity of the straight line section of the crown is more suitable for the requirements of the rotary guide on the lateral cutting capacity than a common drill bit, and meanwhile, the heat removal structure of heat can assist the heat reduction of the drill bit;
2. double-row tooth design can improve the service life of the drill bit by more than one time for stratum with strong abrasiveness;
3. the large nozzle and the small nozzle are combined, so that the balling is effectively prevented, and rock scraps are quickly and efficiently flushed away from the bottom of the well;
4. the double back-reaming design is beneficial to the drilling and the back-reaming function in case of resistance.
Drawings
FIG. 1 is a schematic diagram of a connector of the present invention;
FIG. 2 is one of the schematic views of the drill bit of the present invention;
FIG. 3 is a second schematic view of the drill bit of the present invention;
FIG. 4 is a third schematic view of the drill bit of the present invention.
Legend description: 1-linker; 2-a working body; 3-a first nozzle; 4-a second nozzle; 5-a first cutting block; 6-a second cutting block; 7-bump; 8-cutting teeth; 9-reinforcing teeth; 11-a heat conducting cavity; 12-a dry ice functional chamber; 13-a first diversion port; 14-first radiating meshes; 15-a transition block; 16-second heat dissipation mesh; 17-a second guide port; 18-a liquid storage bag.
Detailed Description
Referring to fig. 1-4, the present embodiment provides a drill bit special for rotation and guiding of superhard strata, which is mainly used for solving the problems of untimely heat dissipation and poor drilling effect when facing the superhard strata in the high-speed use process of the drill bit in the prior art, and the drill bit special for rotation and guiding of superhard strata is already in the actual use stage.
The drill bit special for the superhard stratum rotation guide comprises a connector 1, a working main body 2 and a cutting assembly, wherein the working main body 2 is fixedly connected with the upper end of the connector 1, and the cutting assembly is fixedly connected with the working main body 2; the cutting assembly comprises a cutting block group and a cutting tooth 8 group, the cutting block group is fixedly connected to the outer circle of the working main body 2, and the cutting block group is provided with the cutting tooth 8 group;
the heat conduction cavity 11, the dry ice functional chamber 12, the water diversion port group and the heat dissipation hole group are sequentially arranged in the connector 1 from top to bottom, the first water diversion port 13 and the second water diversion port 17 are arranged in the water diversion port group at intervals, and the first heat dissipation mesh 14 and the second heat dissipation mesh 16 are arranged in the heat dissipation hole group at intervals.
It should be noted that, drilling and cutting are realized through the connecting body 1, the working main body 2 and the cutting assembly, self-heat dissipation of the whole drill bit is realized through the heat conducting cavity 11, the dry ice functional chamber 12, the water conducting port group and the heat dissipating hole group, specifically, the dry ice is placed through the dry ice functional chamber 12, a large amount of heat can be generated in the whole drill bit working process, the dry ice can absorb heat due to sublimation at this time, so that the temperature of the whole brick is gradually reduced, the dry ice becomes gas after sublimation, the gas is discharged from the first heat dissipating mesh 14 and the second heat dissipating mesh 16 in the process of continuously rotating the drill bit, and the whole drill bit working is not influenced, on the other hand, the gas outside the drill bit can enter the functional chamber 12 under the action of air pressure due to the reduction of the gas in the dry ice functional chamber 12, and the gas in the dry ice functional chamber 12 also continuously flows in the process of continuously rotating the drill bit, so that the multiple cooling effect is realized.
The cutting block group comprises a first group and a second group, wherein the first group is internally provided with four first cutting blocks 5, the second group is internally provided with three second cutting blocks 6, the four first cutting blocks 5 are arranged on the outer circle of the working main body 2 at intervals, and the three second cutting blocks 6 are respectively positioned between two adjacent first cutting blocks 5; the first cutting block 5 and the second cutting block 6 are bar-shaped, and the extending directions of the first cutting block 5 and the second cutting block 6 are the same as the extending direction of the working body 2;
two liquid storage bags 18 are arranged in the dry ice functional chamber 12, the two liquid storage bags 18 are arranged in a spiral mode, and two ends of the two liquid storage bags 18 are respectively connected with the top and the bottom of the inner wall of the dry ice functional chamber 12.
The first cutting blocks 5 and the second cutting blocks 6 are arranged at intervals and have a crown-shaped structure, so that the cutting effect is improved. On the other hand, the liquid storage bag 18 is arranged, and the reabsorption of heat generated by the drill bit is realized through the liquid storage bag 18, so that the effectiveness of heat dissipation is ensured.
The first diversion opening 13 is arranged above the first radiating mesh 14, the second diversion opening 17 is arranged above the second radiating mesh 16, and a transition block 15 for connecting a fastening drill bit is fixedly connected below the radiating hole group; the first diversion port 13 and the second diversion port 17 are both provided with a leakage-proof net, and the thickness of the leakage-proof net is one tenth of the thickness of the first radiating mesh 14. It should be noted that, through the first heat dissipation mesh 14 and the second heat dissipation mesh 16 that set up, realize the blocking to dry ice, guarantee that dry ice can not scatter and can not be wasted. The leakage-proof net prevents dry ice from falling out in the rotation process of the drill bit from the first diversion port 13 and the second diversion port 17, and meanwhile, the thickness of the leakage-proof net is very small relative to the first radiating net hole 14 and the second radiating net hole 16, so that effective outflow of gas can be ensured.
Two rows of cutting teeth 8 are arranged in the cutting teeth 8 group, and each first cutting block 5 and each second cutting block 6 are provided with two rows of cutting teeth 8; the reservoir 18 is made of an elastic material and has a thickness of 100nm.
By providing two rows of cutting teeth 8, the service life of the drill bit can be effectively prolonged. Meanwhile, the liquid storage bag 18 is made of elastic materials, so that liquid in the liquid storage bag 18 cannot be scattered out due to breakage even if the liquid storage bag 18 rotates or deforms in the left-right direction during rotation of the drill bit.
Two reinforcing teeth 9 are fixedly connected to one end, far away from the connecting body 1, of each of the three first cutting blocks 5; the reservoir 18 contains a cooling liquid.
It should be noted that, through the liquid storage bag 18 of splendid attire coolant liquid in the liquid storage bag 18, according to the practical liquid storage bag 18 of different thickness of different service scenarios, when the bit pivoted speed reaches which stretch-draw furthest that liquid storage bag 18 can be good, then liquid storage bag 18 produces tearing, and the coolant liquid of splendid attire in it then flows out from dry ice functional chamber 12 and reaches cutting tooth 8 position, cools off cutting tooth 8. Another implementation of this embodiment is that the liquid storage bag 18 contains water, and the thickness and material of the liquid storage bag 18 can ensure that the drill bit will not break when reaching the maximum rotation speed, and this implementation can enable the books in the liquid storage bag 18 to be used in an infinite number of cycles.
The end of the working main body 2 far away from the connecting body 1 is provided with a round angle; the width of one end of the first cutting block 5 far away from the connecting body 1 is smaller than the width of one end of the first cutting block 5 near the connecting body 1; the width of the end, far away from the connecting body 1, of the second cutting block 6 is smaller than the width of the end, close to the connecting body 1, of the second cutting block 6; the aperture ratio of the leakage-proof net is 95%, and the thickness of the leakage-proof net is 90nm; the opening ratios of the first heat radiating mesh 14 and the second heat radiating mesh 16 were 83%.
The thickness of the leakage-proof net is set to 90nm, so that heat dissipation can be effectively improved, and meanwhile, the air circulation performance of the leakage-proof net can be effectively ensured due to the fact that the aperture ratio is 95%; the opening ratios of the first heat radiating mesh 14 and the second heat radiating mesh 16 are 83%, so that the blocking of dry ice can be ensured, and the flow of gas can be performed.
The end face of one end of the working main body 2 far away from the connecting body 1 is provided with a plurality of nozzles, each nozzle comprises a first nozzle 3 and a second nozzle 4, and the diameter of the first nozzle 3 is larger than that of the second nozzle 4.
It is to be noted that, through setting up the nozzle that the diameter is different, realize the liquid blowout of different working scenes, effectively prevent the balling, can let the rapid and efficient of detritus wash away the shaft bottom.
The first nozzle 3 is located at the front end of the second cutting block 6. By disposing the first nozzle 3 having a larger diameter at the forefront, rapid spraying of the main scene is achieved. The first cutting block 5 and the second cutting block 6 are respectively provided with a convex block 7, the convex blocks 7 are positioned at one end of the outer circle of the working main body 2, which is close to the connecting body 1, the width of the convex blocks 7 is equal to that of the first cutting block 5, and the thickness of the convex blocks 7 is larger than that of the first cutting block 5; the projection 7 is provided with cutting teeth 8.
The connection of the cutting blocks is achieved by the projections 7, while the connection of the cutting teeth 8 can be enhanced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The superhard stratum rotation guide special drill bit is characterized by comprising: the cutting device comprises a connecting body (1), a working main body (2) and a cutting assembly, wherein the working main body (2) is fixedly connected with the upper end of the connecting body (1), and the cutting assembly is fixedly connected with the working main body (2); the cutting assembly comprises a cutting block group and a cutting tooth (8) group, the cutting block group is fixedly connected to the outer circle of the working main body (2), and the cutting block group is provided with the cutting tooth (8) group;
the connecting body (1) is internally provided with a heat conducting cavity (11), a dry ice functional chamber (12), a diversion port group and a radiating hole group from top to bottom in sequence, a first diversion port (13) and a second diversion port (17) are arranged in the diversion port group at relative intervals, and a first radiating mesh (14) and a second radiating mesh (16) are arranged in the radiating hole group at relative intervals;
two liquid storage bags (18) are arranged in the dry ice functional chamber (12), the two liquid storage bags (18) are arranged in a spiral mode, and two ends of the two liquid storage bags (18) are respectively connected with the top and the bottom of the inner wall of the dry ice functional chamber (12); the first flow guide opening (13) is arranged above the first radiating mesh (14), the second flow guide opening (17) is arranged above the second radiating mesh (16), and a transition block (15) for connecting a fastening drill bit is fixedly connected below the radiating hole group;
the first diversion opening (13) and the second diversion opening (17) are both provided with a leakage-proof net, and the thickness of the leakage-proof net is one tenth of the thickness of the first radiating mesh (14); the liquid storage bag (18) is internally filled with cooling liquid;
the aperture ratio of the leakage-proof net is 95%, and the thickness of the leakage-proof net is 90nm;
the opening ratio of the first heat dissipation mesh (14) and the second heat dissipation mesh (16) is 83%;
through splendid attire coolant liquid in stock solution bag (18), use stock solution bag (18) of different thickness according to different service scenarios, when stock solution bag (18) can reach its stretch-draw furthest when the drill bit pivoted speed, then stock solution bag (18) produce tearing, the coolant liquid of splendid attire in it then flows out from dry ice functional chamber (12) and reaches cutting tooth (8) position, cools off cutting tooth (8).
2. The superhard strata rotary steerable special bit according to claim 1, wherein the cutting block group comprises a first group and a second group, the first group is internally provided with four first cutting blocks (5), the second group is internally provided with three second cutting blocks (6), the four first cutting blocks (5) are arranged on the outer circle of the working main body (2) at intervals, and the three second cutting blocks (6) are respectively positioned between two adjacent first cutting blocks (5); the first cutting block (5) and the second cutting block (6) are bar-shaped, and the extending directions of the first cutting block (5) and the second cutting block (6) are the same as the extending direction of the working main body (2).
3. The drill bit special for rotary steering of superhard strata according to claim 2, wherein two rows of cutting teeth (8) are arranged in the cutting teeth (8) group, and each of the first cutting block (5) and the second cutting block (6) is provided with two rows of cutting teeth (8); the liquid storage bag (18) is made of elastic materials and has a thickness of 100nm.
4. The drill bit special for rotary steering of superhard strata according to claim 2, wherein two reinforcing teeth (9) are fixedly connected to one end of the three first cutting blocks (5) far away from the connecting body (1).
5. The drill bit special for rotary steering of superhard strata according to claim 2, wherein the end of the working body (2) far from the connector (1) is provided with a rounded corner; the width of one end, far away from the connecting body (1), of the first cutting block (5) is smaller than the width of one end, close to the connecting body (1), of the first cutting block (5); the width of one end, far away from the connecting body (1), of the second cutting block (6) is smaller than the width of one end, close to the connecting body (1), of the second cutting block (6).
6. The drill bit special for rotary steering of superhard strata according to claim 5, wherein a plurality of nozzles are arranged on the end face of the working main body (2) far away from the connecting body (1), the nozzles comprise a first nozzle (3) and a second nozzle (4), and the diameter of the first nozzle (3) is larger than that of the second nozzle (4).
7. A superhard strata rotation-directing special drill bit according to claim 6, characterized in that the first nozzle (3) is located at the front end of the second cutting block (6).
8. The superhard stratum rotation guiding special drill bit according to claim 5, wherein the first cutting block (5) and the second cutting block (6) are respectively provided with a protruding block (7), the protruding blocks (7) are positioned at one end, close to the connecting body (1), of the outer circle of the working main body (2), the width of the protruding blocks (7) is equal to the width of the first cutting block (5), and the thickness of the protruding blocks (7) is larger than that of the first cutting block (5).
9. A superhard strata rotation-guiding special drill bit according to claim 8, characterized in that the cutting teeth (8) are provided on the lugs (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060407.8A CN114320168B (en) | 2022-01-19 | 2022-01-19 | Special drill bit for rotary guiding of superhard stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210060407.8A CN114320168B (en) | 2022-01-19 | 2022-01-19 | Special drill bit for rotary guiding of superhard stratum |
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| Publication Number | Publication Date |
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| CN114320168A CN114320168A (en) | 2022-04-12 |
| CN114320168B true CN114320168B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210060407.8A Active CN114320168B (en) | 2022-01-19 | 2022-01-19 | Special drill bit for rotary guiding of superhard stratum |
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| CN108744264A (en) * | 2018-09-06 | 2018-11-06 | 赵海茜 | A kind of sewing wheel needle syringe needle |
| CN211566624U (en) * | 2019-12-30 | 2020-09-25 | 湖北宏岳塑胶有限公司 | PVC milling equipment |
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| CN213501595U (en) * | 2020-10-28 | 2021-06-22 | 大连圣约乐器有限公司 | Timber engraving device is used in piano production |
| CN215057085U (en) * | 2021-06-01 | 2021-12-07 | 上海顺升地质勘察工程有限公司 | Drilling machine with cooling structure for geological exploration |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214303702U (en) * | 2020-12-29 | 2021-09-28 | 四川深远石油钻井工具股份有限公司 | Directional jetting cooling PDC drill bit |
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- 2022-01-19 CN CN202210060407.8A patent/CN114320168B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203229436U (en) * | 2013-04-19 | 2013-10-09 | 金逹行有限公司 | Seawater desalination, resources comprehensive utilization and zero discharge treatment system |
| CN103801979A (en) * | 2014-02-10 | 2014-05-21 | 常州大学 | Dry cutting method for dry ice cooling |
| CN108119064A (en) * | 2017-12-15 | 2018-06-05 | 武汉科技大学 | A kind of fast cooling punch device |
| CN108744264A (en) * | 2018-09-06 | 2018-11-06 | 赵海茜 | A kind of sewing wheel needle syringe needle |
| CN211566624U (en) * | 2019-12-30 | 2020-09-25 | 湖北宏岳塑胶有限公司 | PVC milling equipment |
| CN213501595U (en) * | 2020-10-28 | 2021-06-22 | 大连圣约乐器有限公司 | Timber engraving device is used in piano production |
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| CN215057085U (en) * | 2021-06-01 | 2021-12-07 | 上海顺升地质勘察工程有限公司 | Drilling machine with cooling structure for geological exploration |
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| CN114320168A (en) | 2022-04-12 |
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