CN205840790U - Hydrofracturing Orthogonal Composite twolip slotting drill - Google Patents
Hydrofracturing Orthogonal Composite twolip slotting drill Download PDFInfo
- Publication number
- CN205840790U CN205840790U CN201620626263.8U CN201620626263U CN205840790U CN 205840790 U CN205840790 U CN 205840790U CN 201620626263 U CN201620626263 U CN 201620626263U CN 205840790 U CN205840790 U CN 205840790U
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- CN
- China
- Prior art keywords
- groove
- grooving
- drill bit
- overcoat
- hydrofracturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
This utility model relates to colliery hydrofracturing and processes the slotting drill used by top board, specially hydrofracturing Orthogonal Composite twolip slotting drill.Solve existing slotting drill and only have a pair grooving cutlery and the problem of grooving cutlery easy fracture.Slotting drill described in the utility model, employs two groups of orthogonal grooving cutleries, can dig simultaneously cut out two V row grooves on the wall of a borehole accomplished fluently, 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.
Description
Technical field
This utility model relates to colliery hydrofracturing and processes the slotting drill used by top board, specially hydrofracturing orthogonal systems
Close twolip slotting drill.
Background technology
In colliery processes top board method, the advantage mesh such as hydrofracturing is easy to operate with it, safety is high, implementation result is good
Before be widely popularized use.The realization of hydrofracturing, by drilling in rock, re-uses slotting drill and carries out grooving, and
Afterwards 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, only equipped with a pair grooving cutlery, can only cut one ring shake of formation, and there will be during cutting rock and cut
The situations such as groove cutlery fracture, affect the formation of joint-cutting, thus limit the using effect of hydrofracturing to a certain extent.
Summary of the invention
This utility model 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.
This utility model adopts the following technical scheme that realization: hydrofracturing Orthogonal Composite twolip slotting drill, including
Drill bit overcoat, one end stretch into the main shaft of drill bit overcoat, 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 goes out cutter groove along drill bit overcoat axially spaced-apart
Distribution and locus are mutually orthogonal；Put outside drill bit and have two the first relative pin slide draw-in grooves of position vertically, the
It is orthogonal that one pin slide draw-in groove and first goes out cutter groove location, puts and have two the second relative bearing pins of position vertically outside drill bit
Slip draw-in groove, it is orthogonal that the second pin slide draw-in groove and second goes out cutter groove location；Main shaft stretches into and has edge in the part of drill bit overcoat
Main shaft is the most spaced apart and locus is orthogonal the first blade groove and the second blade groove；Two first are had in first blade groove
Grooving cutlery, 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
End is 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 second
Blade groove, the tail end of two the second grooving cutleries also make its (the second bearing pin) two ends be stuck in the second pin slide draw-in groove；Work as master
Axle driven along drill bit overcoat move axially time, the first bearing pin, the second bearing pin are sliding at the first pin slide draw-in groove, the second bearing pin respectively
Sliding in dynamic draw-in groove, meanwhile, the first bearing pin, the second bearing pin drive two the first grooving cutleries, two the second grooving cutleries respectively
From first going out cutter groove, second going out cutter groove and stretch out or regain drill bit overcoat；Main shaft is axially hollow structure, and hollow space forms water guide
Passage, the other end of main shaft and be connected overcoat one end connect, main shaft is cased be compressed in drill bit overcoat be connected overcoat it
Between spring.
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 is boring
Machine drives lower rotation, and its main shaft is moved forwardly under rig drill steel effect simultaneously so that two the first grooving cutleries, two
Second grooving cutlery is from first going out cutter groove, second going out cutter groove and stretch out drill bit overcoat, thus completes the cutting of ring shake.Move back pricker
Time, 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 mesh of pricker
's.
Slotting drill described in the utility model, owing to employing two groups of orthogonal grooving cutleries, at the wall of a borehole accomplished fluently
On can dig simultaneously cut out two V row grooves, compared with common slotting drill, efficiency is doubled；Two groups of blade cuttings
After can form two groups of ring shakes, not only increase the stability of grooving blade joint-cutting, reliability, ensure that hydrofracturing simultaneously
Damage envelope and radius, reached to weaken the effect of coal petrography, it is ensured that and improve effect and the intensity of hydrofracturing, be to realize
Effective rock drilling equipment of directional hydraulic fracturing；Two groups of orthogonal thereto orientation of grooving cutlery arrange, the limited space of Appropriate application；Knot
Structure is simple, easily fabricated, with low cost, easy to use, reliable.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of slotting drill described in the utility model；
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 sword
Tool, 6-the second bearing pin, 7-main shaft, 8-drill bit overcoat, 9-spring, 10-conduit pipe, 11-connects overcoat, 12-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, stretches into the main shaft 7 of drill bit overcoat including drill bit overcoat 8, one end, bores
Have vertically on head overcoat 8 two positions relative first go out cutter groove 14, the most also have that two positions are relative second
Go out cutter groove 15, first go out cutter groove 14 and second go out cutter groove 15 along drill bit overcoat 8 axially spaced-apart distribution and locus mutually orthogonal；
Two the first relative pin slide draw-in grooves 12 of position, the first pin slide draw-in groove 12 and is had vertically on drill bit overcoat 8
One to go out cutter groove 14 position orthogonal, and drill bit overcoat 8 has two the second relative pin slide draw-in grooves 13 of position vertically, and second
It is orthogonal that pin slide draw-in groove 13 goes out cutter groove 15 position with second；Main shaft stretch into have in the part of drill bit overcoat along main shaft axially between
Every orthogonal the first blade groove of distribution and locus and the second blade groove；Two the first grooving cutleries 3 are had in first blade groove,
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
In 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 cutter
Sword groove, the tail end of two the second grooving cutleries 5 also make its (the second bearing pin) two ends be stuck in the second pin slide draw-in groove 13；When
Main shaft 7 driven along drill bit overcoat 8 move axially time, first bearing pin the 4, second bearing pin 6 respectively the first pin slide draw-in groove 12,
Sliding in two pin slide draw-in grooves 13, meanwhile, first bearing pin the 4, second bearing pin 6 drives two the first grooving cutleries 3, two respectively
Second grooving cutlery 5 is from first going out cutter groove 14, second going out cutter groove 15 and stretch out or regain drill bit overcoat 8；Main shaft 7 is axially hollow knot
Structure, 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 pressure on main shaft 7
The spring 9 shrinking in drill bit overcoat 8 and be connected between overcoat 11.
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, cephalic par
Point having radian, the first knife-edge part that goes out going out cutter groove 14 has a radian mated with the first grooving cutlery 3 head portion radian, and second
The knife-edge part that goes out going out cutter groove 15 has the radian mated with the second grooving cutlery 5 head portion radian.The radian of grooving cutlery and brill
The outer radian going out knife-edge part going out cutter groove put of head matches, and not only can effectively strut cutlery, and strut works very well,
Improve quality of notch, and grooving cutlery is less susceptible to fracture.The other end of main shaft 7 uses screw thread with the one end being connected overcoat 11
Connect；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
Portion.
Claims (4)
1. a hydrofracturing Orthogonal Composite twolip slotting drill, stretches into the main shaft of drill bit overcoat including drill bit overcoat (8), one end
(7), it is characterised in that have vertically on drill bit overcoat (8) two positions relative first go out cutter groove (14), the most also open
Have two positions relative second goes out cutter groove (15), and first goes out cutter groove (14) and second goes out cutter groove (15) along drill bit overcoat (8) axle
To spaced apart and locus is mutually orthogonal；Two the first relative bearing pins of position are had vertically sliding on drill bit overcoat (8)
Dynamic draw-in groove (12), it is orthogonal that the first pin slide draw-in groove (12) goes out cutter groove (14) position with first, and drill bit overcoat is opened on (8) vertically
Having the second pin slide draw-in groove (13) that two positions are relative, the second pin slide draw-in groove (13) and second goes out cutter groove (15) position
Orthogonal；Main shaft stretches into and has the most spaced apart along main shaft and that locus is orthogonal the first blade groove in the part of drill bit overcoat
With the second blade groove；Have two the first grooving cutleries (3) in first blade groove, the first bearing pin (4) pass perpendicularly through the first blade groove,
The tail end of two the first grooving cutleries (3) also makes its two ends be stuck in the first pin slide draw-in groove (12)；Have in second blade groove
Two the second grooving cutleries (5), the second bearing pin (6) pass perpendicularly through the second blade groove, the tail end of two the second grooving cutleries (5),
And make 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,
One 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), with
Time, the first bearing pin (4), the second bearing pin (6) drive two the first grooving cutleries (3), two the second grooving cutleries (5) from respectively
One go out cutter groove (14), second go out cutter groove (15) and stretch out or regain drill bit overcoat (8)；Main shaft (7) is axially hollow structure, hollow bulb
Dividing and form conduit pipe (10), the other end of main shaft (7) and the one end being connected overcoat (11) connect, and are cased with pressure on main shaft (7)
The spring (9) shrinking in drill bit overcoat (8) and be connected between overcoat (11).
Hydrofracturing Orthogonal Composite twolip slotting drill the most according to claim 1, it is characterised in that the first grooving cutlery
(3) head end of and the second grooving cutlery (5) is pointed, tail end is round shape, and head portion has radian, and first goes out cutter groove (14)
Going out knife-edge part 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 boring
Crown point (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 |
|---|---|---|---|
| CN201620626263.8U CN205840790U (en) | 2016-06-23 | 2016-06-23 | Hydrofracturing Orthogonal Composite twolip slotting drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626263.8U CN205840790U (en) | 2016-06-23 | 2016-06-23 | Hydrofracturing Orthogonal Composite twolip slotting drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205840790U true CN205840790U (en) | 2016-12-28 |
Family
ID=58152575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620626263.8U Withdrawn - After Issue CN205840790U (en) | 2016-06-23 | 2016-06-23 | Hydrofracturing Orthogonal Composite twolip slotting drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205840790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952384A (en) * | 2016-06-23 | 2016-09-21 | 大同煤矿集团有限责任公司 | Hydraulic fracture orthogonal combination double-edge grooving drill bit |
| CN114165164A (en) * | 2021-12-13 | 2022-03-11 | 中南大学 | Grooving drill bit and construction method of waterproof structure |
-
2016
- 2016-06-23 CN CN201620626263.8U patent/CN205840790U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952384A (en) * | 2016-06-23 | 2016-09-21 | 大同煤矿集团有限责任公司 | Hydraulic fracture orthogonal combination double-edge grooving drill bit |
| CN105952384B (en) * | 2016-06-23 | 2018-04-24 | 大同煤矿集团有限责任公司 | Hydrofracturing Orthogonal Composite twolip slotting drill |
| CN114165164A (en) * | 2021-12-13 | 2022-03-11 | 中南大学 | Grooving drill bit and construction method of waterproof structure |
| CN114165164B (en) * | 2021-12-13 | 2023-03-14 | 中南大学 | Grooving drill bit and construction method of waterproof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161228 Effective date of abandoning: 20180424 |