CN106437531B - A kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting - Google Patents
A kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting Download PDFInfo
- Publication number
- CN106437531B CN106437531B CN201610742341.5A CN201610742341A CN106437531B CN 106437531 B CN106437531 B CN 106437531B CN 201610742341 A CN201610742341 A CN 201610742341A CN 106437531 B CN106437531 B CN 106437531B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- inner core
- slip casting
- drill bit
- wing plate
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000007569 slipcasting Methods 0.000 title claims abstract description 18
- 238000005520 cutting process Methods 0.000 claims abstract description 49
- 238000010276 construction Methods 0.000 abstract description 8
- 230000001066 destructive effect Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 3
- 239000003673 groundwater Substances 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B11/00—Other drilling tools
- E21B11/06—Other drilling tools with driven cutting chains or similarly driven tools
Landscapes
- 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)
- Earth Drilling (AREA)
Abstract
The invention discloses the disposable Telescopic drilling tools for underground coal mine fire extinguishing slip casting, leading drill bit includes three wing plates, the junction of the wing plate is hollow design, three top cutting sheets positioned at leading drill bit top rotate in the same direction 15 degree along three pieces of wing plate sidelines respectively, and the projection section in the plane vertical with body of rod axis is Chong Die；The inner core anterior face is equipped with flat key along its length, and sleeve lining is equipped with keyway with flat key cooperation along its length, and the keyway rear end is contacted with engaging part, and the sleeve and inner core are equipped with multiple injected holes.The present invention is extended to line note under the premise of not influencing drilling construction, by grouting mode by a note, from injected hole slip casting into drilling rod of multiple distributions, increases groundwater increment, reduces plug-hole probability, can improve slip casting efficiency；Full cutting is realized, substantially increases speed of fulfiling hole, and three top cutting sheets have shared rock mass to individually pushing up the destructive power of cutting sheet, ensure that drilling is smoothed out.
Description
Technical field
The present invention relates to a kind of drilling tool, specifically a kind of disposable telescopic brill for underground coal mine fire extinguishing slip casting
Tool, belongs to mining equipment.
Background technology
Coal mine gob often will appear the situation of coal spontaneous combustion, seriously affect downhole safety.In order to prevent coal from
Combustion, generally use are in the milk to coal bed drilling, note the materials such as frothy gel, foam.At present when using drill-pouring above-mentioned material,
Firstly, there are the small problems of groundwater increment, and slurries can only be flowed out from the flower hole (floral tube) on drill end or drilling rod, it is easy to
It is blocked, affects slip casting efficiency；Secondly, in the ignition region construction drill for being not easy pore-forming to broken coal body or soft seam etc.
When, since one-tenth porosity is low or is not easy pore-forming, grouting is affected, the efficiency of fire extinguishing is reduced；Third, existing chisel edge one
As all there is cutting blind spot or blind area, i.e., can only achievement unit cutting be cut into hole, directly reduce cutting efficiency, and encounter hard
Coal body when the case where it is easy to appear cutting part tippings, influence construction efficiency.
Invention content
It, can be in view of the above-mentioned problems of the prior art, the object of the present invention is to provide one kind capable of improving one-tenth porosity
It improves slip casting efficiency, reduce slurries plug-hole probability, while cutting blind spot can be eliminated, increase cutting speed, ensure that drill bit is normal
It uses, improves the disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting of coal spontaneous combustion regulation effect.
To achieve the above object, the technical solution adopted by the present invention is：It is a kind of for underground coal mine fire extinguishing slip casting one
Secondary property Telescopic drilling tool, including leading drill bit and the body of rod, the leading drill bit are located at rod end, and the leading drill bit includes
The junction of three wing plates, the wing plate is hollow design, and along side, arrangement is equipped with top cutting to each wing plate from top to bottom
Piece, middle cutting sheet and undercutting pitch cutting；Positioned at three of leading drill bit top top cutting sheets respectively along three pieces of wing plate sidelines to same
One direction rotates 15 degree, and the projection section in the plane vertical with body of rod axis is Chong Die；The body of rod includes sleeve and interior
Core, sleeve are set on inner core, and sleeve and the cooperation of inner core rear portion are equipped with engaging part, and the inner core anterior face is along its length
Equipped with flat key, sleeve lining is equipped with keyway with flat key cooperation along its length, and the keyway rear end is contacted with engaging part, described
Multiple injected holes are distributed on sleeve and inner core.
Preferably, the injected hole has four row, circumferentially uniformly distributed on sleeve and inner core.
Preferably, the engaging part is the spline being arranged that cooperates.
Preferably, the top cutting sheet, middle cutting sheet and undercutting pitch cutting are respectively welded at wing plate side.
Preferably, a diameter of 13.4mm of the top cutting sheet.
Preferably, the sleeve outer diameter is 40-45mm.
Compared with the existing technology, it is an advantage of the invention that：
(1) under the premise of not influencing drilling construction, grouting mode is extended to line note by a note, from the note of multiple distributions
Starch hole slip casting into drilling rod, the slurries of injection are from each injected hole on sleeve and inner core and the wing plate of hollow out on leading drill bit
Junction is flowed out, and slurries are uniformly distributed in the borehole, and on the one hand the wing plate junction of equally distributed injected hole and hollow out increases
Grouting quantity, expands perfusion range；On the other hand, in the higher fireproofing extinguishing materials of perfusion viscosity, the cloth of multiple injected holes
It sets and greatly reduces plug-hole probability, slip casting efficiency can be improved,
(2) after drilling, the indwelling of device entirety in the borehole, even if being not easy pore-forming to broken coal body or soft seam etc.
Ignition region construction drill after, the phenomenon that collapse hole will not occur, guarantee can smooth slip casting, improve comprehensive fire extinguishing effect
Rate ensure that the safety of coal spontaneous combustion is administered；
(3) since three top cutting sheets positioned at leading drill bit top are revolved along three pieces of wing plate sidelines to same direction respectively
Turn 15 degree, and the projection section in the plane vertical with body of rod axis is Chong Die, eliminates the cutting blind spot of leading chisel edge,
Realize full cutting, creep into diameter it is constant in the case of, full cutting substantially increases speed of fulfiling hole, and three top cutting sheets away from
From closer to having shared rock mass in drilling to individually pushing up the destructive power of cutting sheet, ensured that drilling is smoothed out.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is that of the invention drill terminates the construction schematic diagram of recession inner core；
Fig. 3 is the schematic diagram of truncation part sleeve in Fig. 2；
Fig. 4 is the front view that the present invention removes leading drill bit；
Fig. 5 is the stereoscopic schematic diagram of leading drill bit of the present invention；
Fig. 6 is the front view of leading drill bit；
Fig. 7 is the top view of leading drill bit；
In figure, 10. leading drill bits, 11. wing plates, 12. top cutting sheets, cutting sheet in 13., 14. undercutting pitch cuttings, 20. bodies of rod,
21. sleeve, 211. keyways, 22. inner cores, 221. flat keys, 30. injected holes, 40. splines.
Specific implementation mode
Invention is further described in detail below in conjunction with the accompanying drawings.
As shown, a kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting, including leading drill bit 10
With the body of rod 20, the leading drill bit 10 is located at 20 end of the body of rod, and the leading drill bit 10 includes three wing plates 11, the wing plate
11 junction is hollow design, and along side, arrangement is equipped with top cutting sheet 12, middle cutting sheet to each wing plate 11 from top to bottom
13 and undercutting pitch cutting 14；Positioned at three of 10 top of leading drill bit top cutting sheets 12 respectively along three pieces of 11 sidelines of wing plate to same
Direction rotates 15 degree, and the projection section in the plane vertical with 20 axis of the body of rod is Chong Die；The body of rod 20 includes sleeve 21
With inner core 22, sleeve 21 is set on inner core 22, and sleeve 21 and the cooperation of 22 rear portion of inner core are equipped with engaging part, before the inner core 22
Portion surface is equipped with flat key 221 along its length, and 21 inner wall of sleeve is equipped with keyway 211 with the cooperation of flat key 221 along its length, described
211 rear end of keyway is contacted with engaging part, and the sleeve 21 and inner core 22 are equipped with multiple injected holes 30.
Preferably, in order to ensure uniformly to be in the milk, the injected hole 30 has four row, circumferentially uniformly distributed in sleeve 21 and interior
On core 22.
Preferably, in order to keep design succinct, manufacturing cost is reduced, the engaging part is the spline being arranged that cooperates
40。
Preferably, the top cutting sheet 12, middle cutting sheet 13 and undercutting pitch cutting 14 are respectively welded at 11 side of wing plate.
Preferably, a diameter of 13.4mm of the top cutting sheet 12.
Preferably, 21 outer diameter of the sleeve is 40-45mm.
When construction, the drill rod body 20 is driven to rotate integrally by drilling machine, the body of rod 20 drives leading drill bit 10 to rotate construction
Drilling, the spline 40 at 22 rear portion of sleeve 21 and inner core are interconnected to constitute torque transferring structure, while 22 anterior face edge of inner core
The flat key 221 of length direction setting is also used for transmitting torque, to ensure that sleeve 21 and inner core 22 can be rotated with secure synchronization；By
15 degree are rotated in the same direction along three pieces of 11 sidelines of wing plate respectively in three top cutting sheets 12 positioned at 10 top of leading drill bit,
And the projection section in the plane vertical with 20 axis of the body of rod is Chong Die, eliminates the cutting blind spot of 10 front end of leading drill bit, it is real
Showed full cutting, creep into diameter it is constant in the case of, full cutting substantially increases speed of fulfiling hole, and three top cutting sheets 12 away from
From closer to having shared rock mass in drilling to individually pushing up the destructive power of cutting sheet 12, ensured that drilling is smoothed out；It drills end
Afterwards, whole device indwelling in the borehole, according to 20 axis direction of the body of rod drop back inner core 22, when the flat key 221 on inner core 22 is along set
After 211 Receding Contact of keyway to the spline 40 at 21 rear portion of sleeve on 21 inner walls of cylinder, brill is removed in stopping, then beginning through injected hole
30 slip castings into drilling rod；The slurries of injection from sleeve 21 and inner core 22 each injected hole 30 and leading drill bit 10 on hollow out
11 junction of wing plate outflow, distribution in the borehole, guarantee will not plug-hole, considerably increase grouting quantity, improve grouting efficiency.
Claims (3)
1. a kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting, including leading drill bit and the body of rod, before described
Draw drill bit and be located at rod end, which is characterized in that the leading drill bit includes three wing plates, and the junction of the wing plate is to engrave
Sky design, and along side, arrangement is equipped with top cutting sheet, middle cutting sheet and undercutting pitch cutting to each wing plate from top to bottom；Positioned at leading
Three top cutting sheets of drill bit top rotate in the same direction 15 degree along three pieces of wing plate sidelines respectively, and hang down with body of rod axis
Projection section overlapping in straight plane；The body of rod includes sleeve and inner core, and sleeve is set on inner core, after sleeve and inner core
Portion's cooperation is equipped with engaging part, and the inner core anterior face is equipped with flat key along its length, sleeve lining along its length with it is flat
Key cooperation is equipped with keyway, and the keyway rear end is contacted with engaging part, and multiple injected holes are distributed on the sleeve and inner core；
The injected hole has four row, circumferentially uniformly distributed on sleeve and inner core；The engaging part is the flower being arranged that cooperates
Key；The top cutting sheet, middle cutting sheet and undercutting pitch cutting are respectively welded at wing plate side.
2. the disposable Telescopic drilling tool according to claim 1 for underground coal mine fire extinguishing slip casting, which is characterized in that
A diameter of 13.4mm of the top cutting sheet.
3. the disposable Telescopic drilling tool according to claim 1 for underground coal mine fire extinguishing slip casting, which is characterized in that
The sleeve outer diameter is 40-45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742341.5A CN106437531B (en) | 2016-08-26 | 2016-08-26 | A kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742341.5A CN106437531B (en) | 2016-08-26 | 2016-08-26 | A kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437531A CN106437531A (en) | 2017-02-22 |
| CN106437531B true CN106437531B (en) | 2018-10-30 |
Family
ID=58182646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742341.5A Active CN106437531B (en) | 2016-08-26 | 2016-08-26 | A kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106437531B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003379Y (en) * | 2006-09-06 | 2008-01-09 | 西安森兰科贸有限责任公司 | Glue injection fire extinguishing-proof drilling tool for coal mine |
| CN201265353Y (en) * | 2008-10-09 | 2009-07-01 | 陈淑英 | Full-hydraulic mining rescue drill rig |
| CN201363096Y (en) * | 2009-03-07 | 2009-12-16 | 中国矿业大学 | Drilling tool for coal pit fire extinguishing |
| CN202900165U (en) * | 2012-11-23 | 2013-04-24 | 王帅领 | Fire-proof and fire extinguishing drilling tool for short hole grouting of fully mechanized caving face |
| CN204677114U (en) * | 2015-05-20 | 2015-09-30 | 河南永锦能源有限公司 | A kind of coal mine gas extraction drill hole Multifunctional drill |
| CN205370450U (en) * | 2015-11-30 | 2016-07-06 | 徐州吉安矿业科技有限公司 | Colliery fire prevention drilling tool for slip casting |
| CN205977106U (en) * | 2016-08-26 | 2017-02-22 | 中国矿业大学 | A disposable telescopic drilling tool for colliery fire prevention slip casting in pit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160230523A9 (en) * | 2013-08-15 | 2016-08-11 | Shell Oil Company | Mechanized slot drilling |
| CN205349389U (en) * | 2015-11-24 | 2016-06-29 | 山东科技大学 | Reducing cavity slip casting stock that adds protective sleeve |
-
2016
- 2016-08-26 CN CN201610742341.5A patent/CN106437531B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201003379Y (en) * | 2006-09-06 | 2008-01-09 | 西安森兰科贸有限责任公司 | Glue injection fire extinguishing-proof drilling tool for coal mine |
| CN201265353Y (en) * | 2008-10-09 | 2009-07-01 | 陈淑英 | Full-hydraulic mining rescue drill rig |
| CN201363096Y (en) * | 2009-03-07 | 2009-12-16 | 中国矿业大学 | Drilling tool for coal pit fire extinguishing |
| CN202900165U (en) * | 2012-11-23 | 2013-04-24 | 王帅领 | Fire-proof and fire extinguishing drilling tool for short hole grouting of fully mechanized caving face |
| CN204677114U (en) * | 2015-05-20 | 2015-09-30 | 河南永锦能源有限公司 | A kind of coal mine gas extraction drill hole Multifunctional drill |
| CN205370450U (en) * | 2015-11-30 | 2016-07-06 | 徐州吉安矿业科技有限公司 | Colliery fire prevention drilling tool for slip casting |
| CN205977106U (en) * | 2016-08-26 | 2017-02-22 | 中国矿业大学 | A disposable telescopic drilling tool for colliery fire prevention slip casting in pit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106437531A (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203097720U (en) | Concentric slide block simultaneous casing drilling tool, central drill bit and centralizer | |
| US10633927B2 (en) | Internal reamer for anchor shaft hole for mining | |
| CN102109304A (en) | Directional rock blasting crack propagation method and device | |
| CN104314482B (en) | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed | |
| US10794136B2 (en) | Reverse rotary sprinkler drilling pipe system with anti-sticking function and its application method | |
| CN108756757B (en) | Liquid injection type mining drill bit reamer | |
| CN103089146A (en) | Engineering driller capable of conducting superfluid concrete grouting pile driving construction on hard rock strata | |
| CN201963202U (en) | Strong push subsidiary type reamer bit | |
| CN206448830U (en) | A kind of self-advancing type Hollow non-metallic screw thread reinforced resin anchor pole | |
| CN205977106U (en) | A disposable telescopic drilling tool for colliery fire prevention slip casting in pit | |
| CN106437531B (en) | A kind of disposable Telescopic drilling tool for underground coal mine fire extinguishing slip casting | |
| CN104533297A (en) | Diameter-variable drill bit of long-spiral drill | |
| CN204572026U (en) | A kind of Multifunctional anchor rod device | |
| CN202483446U (en) | Drilling, reaming and centering combined bit | |
| CN201050304Y (en) | Horizontal well diamond composite slices kickoff bit | |
| CN205778536U (en) | A kind of drilling in coal anti-blocking instrument of jet deslagging | |
| CN104762958B (en) | Hexagon agitation driller | |
| CN102155164A (en) | Thrust auxiliary reamer bit | |
| CN205330556U (en) | Soft coal creeps into on layer open bionical falling of multiple wing indent and hinders guard aperture drilling rod | |
| CN204402365U (en) | A kind of long-spiral drilling machine expansion bit | |
| CN205477376U (en) | PDC drill bit suitable for hard interbedded layer creeps into | |
| CN209011759U (en) | A kind of novel diamond compact coring bit | |
| CN202483448U (en) | Centering rock bit | |
| CN209623526U (en) | A kind of borehole tamponade device | |
| CN204867560U (en) | Novel cold shell auger head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |