CN105952384A - Hydraulic fracture orthogonal combination double-edge grooving drill bit - Google Patents
Hydraulic fracture orthogonal combination double-edge grooving drill bit Download PDFInfo
- Publication number
- CN105952384A CN105952384A CN201610460034.8A CN201610460034A CN105952384A CN 105952384 A CN105952384 A CN 105952384A CN 201610460034 A CN201610460034 A CN 201610460034A CN 105952384 A CN105952384 A CN 105952384A
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- grooving
- drill bit
- groove
- orthogonal
- hydraulic fracture
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
- E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to hydraulic fracture treatment grooving drill bits for roofs of coal mines, and particularly discloses a hydraulic fracture orthogonal combination double-edge grooving drill bit. By the aid of the hydraulic fracture orthogonal combination double-edge grooving drill bit, problems that an existing grooving drill bit is only provided with a pair of grooving cutting tools and the grooving cutting tools are easy to break can be solved. The hydraulic fracture orthogonal combination double-edge grooving drill bit has the advantages that two V-shaped grooves can be simultaneously chiseled on a perforated drilling wall by two groups of orthogonal grooving cutting tools of the hydraulic fracture orthogonal combination double-edge grooving drill bit, and accordingly the efficiency can be doubled as compared with common grooving drill bits; two groups of annular crack can be formed after the drilling wall is cut by two groups of cutting edges, accordingly, the slotting stability and reliability of the grooving cutting edges can be improved, the hydraulic fracture destruction ranges and radiuses can be guaranteed, coal and rock weakening effects can be realized, hydraulic fracture effects and the hydraulic fracture strength can be guaranteed and improved, and the hydraulic fracture orthogonal combination double-edge grooving drill bit is effective directional hydraulic fracture rock drilling equipment; the two groups of grooving cutting tools are arranged in orthogonal directions, and accordingly limited spaces can be reasonably utilized; the hydraulic fracture orthogonal combination double-edge grooving drill bit is simple in structure, easy to manufacture and low in cost and can be conveniently and reliably used.
Description
Technical field
The present invention relates to colliery hydrofracturing and process the slotting drill used by top board, specially hydrofracturing Orthogonal Composite twolip slotting drill.
Background technology
In colliery processes top board method, the advantages such as hydrofracturing is easy to operate with it, safety is high, implementation result is good are widely popularized use at present.The realization of hydrofracturing, by drilling in rock, re-uses slotting drill and carries out grooving, and then by after high-pressure water injection device sealing of hole water filling, pressure reaches to realize fracturing during rock failure mechanism of rock intensity level.Existing slotting drill device is only equipped with a pair grooving cutlery, one ring shake of formation can only be cut, and there will be the situations such as grooving cutlery fracture during cutting rock, affect the formation of joint-cutting, thus limit the using effect of hydrofracturing to a certain extent.
Summary of the invention
The present invention solves existing slotting drill and only has a pair grooving cutlery and the problem of grooving cutlery easy fracture, it is provided that a kind of hydrofracturing Orthogonal Composite twolip slotting drill.
The present invention adopts the following technical scheme that realization: hydrofracturing Orthogonal Composite twolip slotting drill, the main shaft of drill bit overcoat is stretched into including drill bit overcoat, one end, put outside drill bit have vertically two positions relative first go out cutter groove, the most also have two positions relative second go out cutter groove, first goes out cutter groove and second, and to go out cutter groove mutually orthogonal along the distribution of drill bit overcoat axially spaced-apart and locus；Put outside drill bit and have two the first relative pin slide draw-in grooves of position vertically, it is orthogonal that first pin slide draw-in groove and first goes out cutter groove location, putting outside drill bit and have two the second relative pin slide draw-in grooves of position vertically, it is orthogonal that the second pin slide draw-in groove and second goes out cutter groove location；Main shaft stretches into and has the most spaced apart along main shaft and that locus is orthogonal the first blade groove and the second blade groove in the part of drill bit overcoat；Having two the first grooving cutleries in first blade groove, the first bearing pin passes perpendicularly through the first blade groove, the tail end of two the first grooving cutleries and makes its (the first bearing pin) two ends be stuck in the first pin slide draw-in groove；Having two the second grooving cutleries in second blade groove, the second bearing pin passes perpendicularly through the second blade groove, the tail end of two the second grooving cutleries and makes its (the second bearing pin) two ends be stuck in the second pin slide draw-in groove；When main shaft is driven move axially along drill bit overcoat time, first bearing pin, the second bearing pin slide respectively in the first pin slide draw-in groove, the second pin slide draw-in groove, meanwhile, the first bearing pin, the second bearing pin drive two the first grooving cutleries, two the second grooving cutleries from first going out cutter groove, second going out cutter groove and stretch out or regain drill bit overcoat respectively；Main shaft is axially hollow structure, and hollow space forms conduit pipe, and the other end of main shaft connects with the one end being connected overcoat, is cased with the spring being compressed in drill bit overcoat with being connected between overcoat on main shaft.
During use, the other end connecting overcoat may be coupled on the drill steel of ordi-nary drilling machine, and connected mode is that spiral shell button connects.When entering pricker, under the action of the spring, two groups of grooving cutleries are in contraction state, it is easy to deeply.During grooving, this slotting drill rotates under rig drives, its main shaft is moved forwardly under rig drill steel effect simultaneously, so that two the first grooving cutleries, two the second grooving cutleries are from first going out cutter groove, second going out cutter groove and stretch out drill bit overcoat, thus completes the cutting of ring shake.When moving back pricker, under the common effect of the wall of a borehole and spring, two groups of grooving cutleries are forced inwardly contraction, thus reach easily to move back the purpose of pricker.
Slotting drill of the present invention, owing to employing two groups of orthogonal grooving cutleries, can dig on the wall of a borehole accomplished fluently simultaneously and cut out two V row grooves, and compared with common slotting drill, efficiency is doubled；Two groups of ring shakes can be formed after two groups of blade cuttings, not only increase the stability of grooving blade joint-cutting, reliability, ensure that damage envelope and the radius of hydrofracturing simultaneously, reach to weaken the effect of coal petrography, ensure and improve effect and the intensity of hydrofracturing, be the effective rock drilling equipment realizing directional hydraulic fracturing；Two groups of orthogonal thereto orientation of grooving cutlery arrange, the limited space of Appropriate application；Simple in construction, easily fabricated, with low cost, easy to use, reliable.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of slotting drill of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the B-B sectional view of Fig. 1.
In figure: 1-drill bit is top, 2-cylindrical pin, 3-the first grooving cutlery 4-the first bearing pin, 5-the second grooving cutlery, 6-the second bearing pin, 7-main shaft, 8-drill bit overcoat, 9-spring, 10-conduit pipe, 11-connects overcoat, 12-the first pin slide draw-in groove, 13-the second pin slide draw-in groove, 14-first goes out cutter groove, and 15-second goes out cutter groove.
Detailed description of the invention
Hydrofracturing Orthogonal Composite twolip slotting drill, the main shaft 7 of drill bit overcoat is stretched into including drill bit overcoat 8, one end, have vertically on drill bit overcoat 8 two positions relative first go out cutter groove 14, the most also have two positions relative second go out cutter groove 15, first goes out cutter groove 14 and second, and to go out cutter groove 15 mutually orthogonal along the distribution of drill bit overcoat 8 axially spaced-apart and locus；Two the first relative pin slide draw-in grooves 12 of position are had vertically on drill bit overcoat 8, it is orthogonal that first pin slide draw-in groove 12 goes out cutter groove 14 position with first, having two the second relative pin slide draw-in grooves 13 of position on drill bit overcoat 8 vertically, it is orthogonal that the second pin slide draw-in groove 13 goes out cutter groove 15 position with second；Main shaft stretches into and has the most spaced apart along main shaft and that locus is orthogonal the first blade groove and the second blade groove in the part of drill bit overcoat；Having two the first grooving cutleries 3 in first blade groove, the first bearing pin 4 passes perpendicularly through the first blade groove, the tail end of two the first grooving cutleries 3 and makes its (the first bearing pin) two ends be stuck in the first pin slide draw-in groove 12；Having two the second grooving cutleries 5 in second blade groove, the second bearing pin 6 passes perpendicularly through the second blade groove, the tail end of two the second grooving cutleries 5 and makes its (the second bearing pin) two ends be stuck in the second pin slide draw-in groove 13；When main shaft 7 is driven move axially along drill bit overcoat 8 time, first bearing pin the 4, second bearing pin 6 slides respectively in first pin slide draw-in groove the 12, second pin slide draw-in groove 13, meanwhile, first bearing pin the 4, second bearing pin 6 drives 3, two the second grooving cutleries 5 of two the first grooving cutleries from first going out cutter groove 14, second going out cutter groove 15 and stretch out or regain drill bit overcoat 8 respectively；Main shaft 7 is axially hollow structure, and hollow space forms conduit pipe 10, and the other end of main shaft 7 connects with the one end being connected overcoat 11, is cased with the spring 9 being compressed in drill bit overcoat 8 with being connected overcoat between 11 on main shaft 7.
When being embodied as, the head end of the first grooving cutlery 3 and the second grooving cutlery 5 is pointed, tail end is round shape, head portion has radian, first knife-edge part that goes out going out cutter groove 14 has the radian mated with the first grooving cutlery 3 head portion radian, the second knife-edge part that goes out going out cutter groove 15 to have the radian mated with the second grooving cutlery 5 head portion radian.The radian going out knife-edge part going out cutter groove put outside the radian of grooving cutlery and drill bit matches, and not only can effectively strut cutlery, and strut works very well, improves quality of notch, and grooving cutlery is less susceptible to fracture.The other end of main shaft 7 uses threaded with the one end being connected overcoat 11；First blade groove is opened in the end of main shaft 7, makes more reasonable structure.
This slotting drill also includes that drill bit top 1, drill bit top 1 are fixed on the end of drill bit overcoat 8 by cylindrical pin 2.
Claims (4)
1. a hydrofracturing Orthogonal Composite twolip slotting drill, the main shaft (7) of drill bit overcoat is stretched into including drill bit overcoat (8), one end, it is characterized in that, have vertically on drill bit overcoat (8) two positions relative first go out cutter groove (14), the most also have two positions relative second go out cutter groove (15), first goes out cutter groove (14) and second, and to go out cutter groove (15) mutually orthogonal along the distribution of drill bit overcoat (8) axially spaced-apart and locus；Two the first relative pin slide draw-in grooves (12) of position are had vertically on drill bit overcoat (8), it is orthogonal that first pin slide draw-in groove (12) goes out cutter groove (14) position with first, having two the second relative pin slide draw-in grooves (13) of position on drill bit overcoat (8) vertically, it is orthogonal that the second pin slide draw-in groove (13) goes out cutter groove (15) position with second；Main shaft stretches into and has the most spaced apart along main shaft and that locus is orthogonal the first blade groove and the second blade groove in the part of drill bit overcoat；Having two the first grooving cutleries (3) in first blade groove, the first bearing pin (4) passes perpendicularly through the first blade groove, the tail end of two the first grooving cutleries (3) and makes its two ends be stuck in the first pin slide draw-in groove (12)；Having two the second grooving cutleries (5) in second blade groove, the second bearing pin (6) passes perpendicularly through the second blade groove, the tail end of two the second grooving cutleries (5) and makes its two ends be stuck in the second pin slide draw-in groove (13)；When main shaft (7) is driven move axially along drill bit overcoat (8) time, first bearing pin (4), the second bearing pin (6) slide respectively in the first pin slide draw-in groove (12), the second pin slide draw-in groove (13), meanwhile, the first bearing pin (4), the second bearing pin (6) drive two the first grooving cutleries (3), two the second grooving cutleries (5) from first going out cutter groove (14), second going out cutter groove (15) and stretch out or regain drill bit overcoat (8) respectively；Main shaft (7) is axially hollow structure, hollow space forms conduit pipe (10), the other end of main shaft (7) connects with the one end being connected overcoat (11), is cased with the spring (9) being compressed in drill bit overcoat (8) with being connected between overcoat (11) on main shaft (7).
Hydrofracturing Orthogonal Composite twolip slotting drill the most according to claim 1, it is characterized in that, the head end of the first grooving cutlery (3) and the second grooving cutlery (5) is pointed, tail end is round shape, head portion has radian, first knife-edge part that goes out going out cutter groove (14) has the radian mated with the first grooving cutlery (3) head portion radian, the second knife-edge part that goes out going out cutter groove (15) to have the radian mated with the second grooving cutlery (5) head portion radian.
Hydrofracturing Orthogonal Composite twolip slotting drill the most according to claim 1 and 2, it is characterised in that the first blade groove is opened in the end of main shaft (7).
Hydrofracturing Orthogonal Composite twolip slotting drill the most according to claim 1 and 2, it is characterised in that also include drill bit top (1), drill bit top (1) is fixed on the end of drill bit overcoat (8) by cylindrical pin (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460034.8A CN105952384B (en) | 2016-06-23 | 2016-06-23 | Hydrofracturing Orthogonal Composite twolip slotting drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460034.8A CN105952384B (en) | 2016-06-23 | 2016-06-23 | Hydrofracturing Orthogonal Composite twolip slotting drill |
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| Publication Number | Publication Date |
|---|---|
| CN105952384A true CN105952384A (en) | 2016-09-21 |
| CN105952384B CN105952384B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460034.8A Active CN105952384B (en) | 2016-06-23 | 2016-06-23 | Hydrofracturing Orthogonal Composite twolip slotting drill |
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| CN (1) | CN105952384B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978972A (en) * | 2017-05-27 | 2017-07-25 | 中国铁建重工集团有限公司 | A kind of drilling equipment and rig |
| CN107829749A (en) * | 2017-11-14 | 2018-03-23 | 重庆格德瑞重工智能装备研究院 | It is all-hydraulic to cut top pressure release drill carriage |
| CN109882077A (en) * | 2019-03-20 | 2019-06-14 | 中国恩菲工程技术有限公司 | Axial groove cutting tool in hole |
| CN112814560A (en) * | 2020-12-30 | 2021-05-18 | 重庆国翔新材料有限公司 | Deformation drill bit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066749A (en) * | 1959-08-10 | 1962-12-04 | Jersey Prod Res Co | Combination drill bit |
| US4204715A (en) * | 1976-11-24 | 1980-05-27 | Atlas Copco Aktiebolag | Method and device for breaking a hard compact material |
| CN201687394U (en) * | 2010-06-07 | 2010-12-29 | 张志呈 | Secondary slotting drill |
| CN102852522A (en) * | 2012-04-01 | 2013-01-02 | 天地科技股份有限公司 | Hydraulic fracturing method and device for releasing pressure of coal mine tunnel |
| CN203499569U (en) * | 2013-10-18 | 2014-03-26 | 永城煤电控股集团有限公司 | Water-pressure-controlled drilling and blanking integrated efficient drill bit |
| CN205840790U (en) * | 2016-06-23 | 2016-12-28 | 大同煤矿集团有限责任公司 | Hydrofracturing Orthogonal Composite twolip slotting drill |
-
2016
- 2016-06-23 CN CN201610460034.8A patent/CN105952384B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3066749A (en) * | 1959-08-10 | 1962-12-04 | Jersey Prod Res Co | Combination drill bit |
| US4204715A (en) * | 1976-11-24 | 1980-05-27 | Atlas Copco Aktiebolag | Method and device for breaking a hard compact material |
| CN201687394U (en) * | 2010-06-07 | 2010-12-29 | 张志呈 | Secondary slotting drill |
| CN102852522A (en) * | 2012-04-01 | 2013-01-02 | 天地科技股份有限公司 | Hydraulic fracturing method and device for releasing pressure of coal mine tunnel |
| CN203499569U (en) * | 2013-10-18 | 2014-03-26 | 永城煤电控股集团有限公司 | Water-pressure-controlled drilling and blanking integrated efficient drill bit |
| CN205840790U (en) * | 2016-06-23 | 2016-12-28 | 大同煤矿集团有限责任公司 | Hydrofracturing Orthogonal Composite twolip slotting drill |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978972A (en) * | 2017-05-27 | 2017-07-25 | 中国铁建重工集团有限公司 | A kind of drilling equipment and rig |
| CN107829749A (en) * | 2017-11-14 | 2018-03-23 | 重庆格德瑞重工智能装备研究院 | It is all-hydraulic to cut top pressure release drill carriage |
| CN109882077A (en) * | 2019-03-20 | 2019-06-14 | 中国恩菲工程技术有限公司 | Axial groove cutting tool in hole |
| CN112814560A (en) * | 2020-12-30 | 2021-05-18 | 重庆国翔新材料有限公司 | Deformation drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105952384B (en) | 2018-04-24 |
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Application publication date: 20160921 Assignee: DATONG COAL MINE TASHAN COAL MINE CO., LTD. Assignor: Datong Coal Mine Group Co., Ltd. Contract record no.: 2019140000001 Denomination of invention: Hydraulic fracture orthogonal combination double-edge grooving drill bit Granted publication date: 20180424 License type: Exclusive License Record date: 20190524 |
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| EE01 | Entry into force of recordation of patent licensing contract |