CN108915602A - A kind of bilayer dust suction drill bit - Google Patents
A kind of bilayer dust suction drill bit Download PDFInfo
- Publication number
- CN108915602A CN108915602A CN201810757852.3A CN201810757852A CN108915602A CN 108915602 A CN108915602 A CN 108915602A CN 201810757852 A CN201810757852 A CN 201810757852A CN 108915602 A CN108915602 A CN 108915602A
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- China
- Prior art keywords
- drill bit
- gear
- ring
- upper annular
- annular flange
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- 239000000428 dust Substances 0.000 title claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 16
- 239000011435 rock Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 abstract description 2
- 239000012634 fragment Substances 0.000 description 7
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
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
A kind of bilayer dust suction drill bit, including interior drill bit, outer drill bit, preceding drilling rod, sleeve, hollow drill and planetary gear.Sleeve covers on the outside of hollow drill, and interior drill bit is cone, and outer drill bit is circular ring shape.Interior drill bit is located in the middle part of outer drill bit, and the front end of interior drill bit is no more than the front end of outer drill bit.The front end of drilling rod before interior drill bit is fixed on, the end of preceding drilling rod, which has, intersects cross bar, intersects cross bar and is fixed in hollow drill front inner wall.There is ring gear on outer drill tip inner wall, there is outer gear ring on the outer wall of hollow drill front end, ring gear, planetary gear and outer gear ring form planetary gear train.The double-deck dust suction drill bit of the invention also has a drill bit outside circular ring shape in interior drill bit periphery, and in tunneling process, outer drill bit is cut into round plane of weakness in advance on rock mass, interior drill bit is again crushed plane of weakness, inside and outside drill bit collective effect, drivage efficiency is higher, and hole quality is high；It becomes narrow gradually, will not be blocked from front to back between inside and outside drill bit.
Description
Technical field
The present invention relates to dust suction drill bit more particularly to a kind of double-deck dust suction drill bits.
Background technique
Dust suction drill bit is that the fragment after drill bit fragmented rock body can be transported to brill by the hollow drill of drill bit rear end by one kind
Drill bit outside hole.Patent CN2013103218973 discloses a kind of backpitch crushing dust suction drill bit, passes through the wing that backpitch turns
Broken fragment is transported to the horn mouth of drill bit rear end, then is transferred out by the channel of horn mouth rear end.This dust suction
Drill bit is generally only applicable to weak stratum, and when there is larger fragment in rock stratum, it is easy to block horn mouth, cause transfer passage
Blocking.
Summary of the invention
The purpose of the present invention is to provide a kind of separating twices that can carry out to sillar to prevent the double of its blocking drill bit internal channel
Layer dust suction drill bit.
To realize the above goal of the invention, technical scheme is as follows：
A kind of bilayer dust suction drill bit, including interior drill bit, outer drill bit, preceding drilling rod, sleeve, hollow drill and planetary gear, wherein
Sleeve covers on the outside of hollow drill, and hollow drill front end is stretched out except sleeve；Interior drill bit is conical, on the circular conical surface of interior drill bit
Spiral wing is distributed with；Outer drill bit is circular ring shape, and front end has zigzag wing；Interior drill bit is located in the middle part of outer drill bit, interior brill
The front end of head is no more than the front end of outer drill bit；The front end of drilling rod before interior drill bit is fixed on, the end of preceding drilling rod, which has, intersects cross bar,
Intersect cross bar to be fixed in hollow drill front inner wall；There is ring gear, hollow drill front end outer wall on outer drill tip inner wall
Upper have an outer gear ring, 2 with upper planet wheel between ring gear and outer gear ring, ring gear, planetary gear and outer gear ring group are embarked on journey
Star wheel series；There is the first upper annular flange and the first lower collar flange, the first upper annular flange is located at internal tooth on outer drill bit inner wall
On circle, the first lower collar flange is located under ring gear, with the first upper annular flange and the on the outer wall of hollow drill front end
Collar flange once, the second upper annular flange are located on outer gear ring, and the second lower collar flange is located under outer gear ring, on first
Collar flange and the second upper annular flange are opposite, and the first lower collar flange and the second lower collar flange are opposite, and planetary gear is stuck in the
In the shell that one upper annular flange, the first lower collar flange, the second upper annular flange and the second lower collar flange surround, planetary gear
The upper end of wheel shaft is stuck between the first upper annular flange and the second upper annular flange, and the lower end of the wheel shaft of planetary gear is stuck under first
Between collar flange and the second lower collar flange；The wheel shaft end of planetary gear stretches out the first lower collar flange and the second lower ring-type is convex
The lower surface of edge is simultaneously fixed in barrel forward end.
Further, planetary gear is 4, sky of 4 planetary gear equidistantly distributeds between ring gear and outer gear ring
In gap.
Further, intersecting cross bar is two groups, two groups of intersection cross bar parallelly distribute ons.
Further, further include seal ring piece, the inner edge of seal ring piece is adjacent to the outer wall of hollow drill, seal ring piece it is outer
Edge is adjacent to the inner wall of outer drill bit, the upper surface phase of the lower surface of seal ring piece and the first upper annular flange and the second upper annular flange
Patch, the upper end of wheel shaft are stretched out the upper surface of the first upper annular flange and the second upper annular flange and are stuck on seal ring piece.
Compared with prior art, beneficial effects of the present invention：The double-deck dust suction drill bit of the invention also has in interior drill bit periphery
There is an outer drill bit of circular ring shape, in tunneling process, outer drill bit is cut into round plane of weakness in advance on rock mass, and interior drill bit again carries out plane of weakness
Broken, inside and outside drill bit collective effect, drivage efficiency is higher, and hole quality is high；It is become narrow gradually from front to back between inside and outside drill bit,
Fragment after interior drill bit broken rock can block core drill without occurring by separating twice between inside and outside drill bit if volume is larger
The entrance of bar.
Detailed description of the invention
Fig. 1 is a kind of sectional view of the double-deck dust suction drill bit described in the embodiment of the present invention；
Fig. 2 is a kind of cross-sectional view of the double-deck dust suction drill bit described in the embodiment of the present invention；
Fig. 3 is a kind of planetary gear train structural schematic diagram of the double-deck dust suction drill bit described in the embodiment of the present invention；
In figure 1 above -3, drill bit in 1-；The outer drill bit of 2-；201- the first upper annular flange；The lower collar flange of 202- first；
3- hollow drill；301- the second upper annular flange；The lower collar flange of 302- second；4- sleeve；Drilling rod before 5-；501- intersects horizontal
Bar；6- planetary gear；601- wheel shaft；7- seal ring piece.
Specific embodiment：
The present invention is described further with reference to the accompanying drawings.
Embodiment
As shown in Figure 1, a kind of bilayer dust suction drill bit, is axially symmetric structure, including interior drill bit 1, outer drill bit 2, hollow drill
3, sleeve 4, preceding drilling rod 5 and planetary gear 6, wherein 4 sets of sleeve in 3 outside of hollow drill, 3 front end of hollow drill stretch out sleeve 4 it
Outside.Interior drill bit 1 is cone, and spiral wing is distributed on the circular conical surface of interior drill bit 1.Outer drill bit 2 is circular ring shape, and front end has
Zigzag wing.Interior drill bit 1 is located among outer drill bit 2, and the front end of interior drill bit 1 is no more than the front end of outer drill bit 2.Interior drill bit 1 is solid
The end of the front end of drilling rod 5 before being scheduled on, preceding drilling rod 5 has two groups of parallel intersection cross bars 501, intersects cross bar 501 and is fixed on sky
In 3 front inner wall of heart drilling rod.There is ring gear in outer 2 inner wall at end of drill bit, there is outer gear ring on 3 front end outer wall of hollow drill.
Fig. 2 show in Fig. 1 the cross-sectional view at A-A, and 4 planetary gears 6 are equally distributed between ring gear and outer gear ring, internal tooth
Circle, planetary gear 6 and outer gear ring form planetary gear train.
As shown in figure 3, there is the first upper annular flange 201 and the first lower collar flange 202 on outer 2 inner wall of drill bit, first
Upper annular flange 201 is located on ring gear, and the first lower collar flange 202 is located under ring gear, 3 front end outer wall of hollow drill
It is upper that there is the first upper annular flange 301 and the first lower collar flange 302, the second upper annular flange 301 to be located on outer gear ring, the
Two lower collar flanges 302 are located under outer gear ring, and the first upper annular flange 201 and the second upper annular flange 301 are opposite, under first
Collar flange 202 and the second lower collar flange 302 are opposite, and planetary gear 6 is stuck under the first upper annular flange 201, first cyclic annular convex
In the shell that edge 202, the second upper annular flange 301 and the second lower collar flange 302 surround, the front end card of the wheel shaft 601 of planetary gear 6
Between the first upper annular flange 201 and the second upper annular flange 301, the lower end of the wheel shaft 601 of planetary gear is stuck in the first lower ring
Between shape flange 202 and the second lower collar flange 302.The first lower collar flange 202 and the are stretched out in 601 end of wheel shaft of planetary gear
The lower surface of two lower collar flanges 302 is simultaneously fixed on 4 front end of sleeve.The inner edge of seal ring piece 7 is adjacent to the outer of hollow drill 3
Wall, the outer rim of seal ring piece 7 are adjacent to the inner wall of outer drill bit 2, the lower surface of seal ring piece 7 and the first upper annular flange 201 and the
The upper surface of two upper annular flanges 301 is affixed, and the upper end of wheel shaft 601 stretches out the first upper annular flange 201 and the second upper annular is convex
The upper surface of edge 301 is simultaneously stuck on seal ring piece 7.
When drilling, hollow drill 3 is simultaneously advanced with sleeve 4, and hollow drill 3 rotates in sleeve 4, makes interior drill bit 1 and sky
Heart drilling rod 3 rotates coaxially, and drives planetary gear 6 to rotate by outer gear ring.Planetary gear 6 is fixed on sleeve 4 only due to wheel shaft 601
There is rotation, therefore outer drill bit 2 can be driven to rotate around interior drill bit 1, and outer drill bit 2 is opposite with the direction of rotation of interior drill bit 1.Outer brill
First 2 zigzag wing contacts rock mass in advance, a round plane of weakness is cut on rock mass, then interior drill bit 1 connects with plane of weakness again
Touch further fragmented rock body.Broken fragment is pressed into hollow drill 3 by the spiral wing on interior drill bit 1, and by core drill
Negative-pressure ward in bar 3 is gone out.Since the gap between interior drill bit 1 and outer drill bit 2 becomes narrow gradually from front to back, volume compared with
Big fragment is left on the spiral wing cutting and grinding again between interior drill bit 1 and outer drill bit 2 by interior drill bit 1, until being broken
Being broken into can be by the fragment at place most narrow between interior drill bit 1 and outer drill bit 2.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that：Still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (4)
1. a kind of bilayer dust suction drill bit, which is characterized in that including interior drill bit, outer drill bit, preceding drilling rod, sleeve, hollow drill and row
Star-wheel, wherein sleeve covers on the outside of hollow drill, and hollow drill front end is stretched out except sleeve；
Interior drill bit is cone, and spiral wing is distributed on the circular conical surface of interior drill bit；
Outer drill bit is circular ring shape, and the front end of outer drill bit has zigzag wing；
Interior drill bit is located in the middle part of outer drill bit, and the front end of interior drill bit is no more than the front end of outer drill bit；
The front end of drilling rod before interior drill bit is fixed on, the end of preceding drilling rod, which has, intersects cross bar, intersects cross bar and is fixed on hollow drill
In front inner wall；
There is ring gear on outer drill tip inner wall, there is outer gear ring on the outer wall of hollow drill front end, 2 are located at upper planet wheel
Between ring gear and outer gear ring, ring gear, planetary gear and outer gear ring form planetary gear train；
There is the first upper annular flange and the first lower collar flange on outer drill bit inner wall, the first upper annular flange be located at ring gear it
On, the first lower collar flange is located under ring gear, has under the first upper annular flange and first on the outer wall of hollow drill front end
Collar flange, the second upper annular flange are located on outer gear ring, and the second lower collar flange is located under outer gear ring, the first upper annular
Flange and the second upper annular flange are opposite, and the first lower collar flange and the second lower collar flange are opposite, and planetary gear is stuck on first
In the shell that collar flange, the first lower collar flange, the second upper annular flange and the second lower collar flange surround, the wheel shaft of planetary gear
Upper end be stuck between the first upper annular flange and the second upper annular flange, the lower end of the wheel shaft of planetary gear is stuck in the first lower ring-type
Between flange and the second lower collar flange；
Before the wheel shaft end of planetary gear stretches out the lower surface of the first lower collar flange and the second lower collar flange and is fixed on sleeve
On end.
2. a kind of double-deck dust suction drill bit according to claim 1, which is characterized in that the planetary gear is 4,4 rows
Star gear equidistantly distributed is in the gap between the ring gear and the outer gear ring.
3. a kind of double-deck dust suction drill bit according to claim 1, which is characterized in that the intersection cross bar is two groups, two groups
Intersect cross bar parallelly distribute on.
4. a kind of double-deck dust suction drill bit according to claim 1, which is characterized in that further include seal ring piece, seal ring piece
Inner edge be adjacent to the outer wall of the hollow drill, the outer rim of seal ring piece is adjacent to the inner wall of the outer drill bit, under seal ring piece
Surface and the upper surface of the first upper annular flange and the second upper annular flange are affixed, and institute is stretched out in the upper end of the wheel shaft
It states the upper surface of the first upper annular flange and the second upper annular flange and is stuck on seal ring piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757852.3A CN108915602B (en) | 2018-07-11 | 2018-07-11 | Double-layer dust-absorbing drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757852.3A CN108915602B (en) | 2018-07-11 | 2018-07-11 | Double-layer dust-absorbing drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108915602A true CN108915602A (en) | 2018-11-30 |
| CN108915602B CN108915602B (en) | 2020-11-24 |
Family
ID=64410482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810757852.3A Active CN108915602B (en) | 2018-07-11 | 2018-07-11 | Double-layer dust-absorbing drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108915602B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679442U (en) * | 2010-03-29 | 2010-12-22 | 中国石油集团川庆钻探工程有限公司 | Planetary structure for balancing reaction torque of drilling equipment in well drilling |
| CN102409979A (en) * | 2011-09-22 | 2012-04-11 | 张永忠 | Stone-crushing drill bit |
| CN103046872A (en) * | 2013-01-21 | 2013-04-17 | 常州信息职业技术学院 | Combined multistage mud crushing drill |
| CN103352659A (en) * | 2013-07-29 | 2013-10-16 | 河南理工大学 | Backpitch shattering and dust collecting drill bit |
| CN103485715A (en) * | 2013-09-17 | 2014-01-01 | 西南石油大学 | Drilling tool capable of controlling reactive torque |
| KR20140111817A (en) * | 2013-03-12 | 2014-09-22 | 신원특수건설(주) | Apparatus for ground boring |
| CN205370449U (en) * | 2016-01-21 | 2016-07-06 | 盐城市中标工程装备制造有限公司 | Go into rock drill bit structure |
| CN206769819U (en) * | 2017-03-23 | 2017-12-19 | 安徽理工大学 | Broken screw thread deslagging bottom plate efficient drilling drill bit device in a kind of outer brill |
| CN207296875U (en) * | 2017-08-25 | 2018-05-01 | 苏州圣雷动力机械有限公司 | A kind of ground auger that there is balance to bore ground moment capacity |
| CN207309026U (en) * | 2017-08-27 | 2018-05-04 | 泰达长林管道科技（江西）股份有限公司 | A kind of new suction bits boring cutter |
| CN207568504U (en) * | 2017-11-10 | 2018-07-03 | 中石化石油工程技术服务有限公司 | Power drilling tool seal transmission shaft without untwisting angle |
| CN108678678A (en) * | 2018-06-06 | 2018-10-19 | 中国矿业大学 | A kind of mine double-layer dry type dust suction drill bit |
| CN109488210A (en) * | 2018-10-12 | 2019-03-19 | 徐州市三成铸业有限公司 | A kind of bilayer drill bit |
-
2018
- 2018-07-11 CN CN201810757852.3A patent/CN108915602B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201679442U (en) * | 2010-03-29 | 2010-12-22 | 中国石油集团川庆钻探工程有限公司 | Planetary structure for balancing reaction torque of drilling equipment in well drilling |
| CN102409979A (en) * | 2011-09-22 | 2012-04-11 | 张永忠 | Stone-crushing drill bit |
| CN103046872A (en) * | 2013-01-21 | 2013-04-17 | 常州信息职业技术学院 | Combined multistage mud crushing drill |
| KR20140111817A (en) * | 2013-03-12 | 2014-09-22 | 신원특수건설(주) | Apparatus for ground boring |
| CN103352659A (en) * | 2013-07-29 | 2013-10-16 | 河南理工大学 | Backpitch shattering and dust collecting drill bit |
| CN103485715A (en) * | 2013-09-17 | 2014-01-01 | 西南石油大学 | Drilling tool capable of controlling reactive torque |
| CN205370449U (en) * | 2016-01-21 | 2016-07-06 | 盐城市中标工程装备制造有限公司 | Go into rock drill bit structure |
| CN206769819U (en) * | 2017-03-23 | 2017-12-19 | 安徽理工大学 | Broken screw thread deslagging bottom plate efficient drilling drill bit device in a kind of outer brill |
| CN207296875U (en) * | 2017-08-25 | 2018-05-01 | 苏州圣雷动力机械有限公司 | A kind of ground auger that there is balance to bore ground moment capacity |
| CN207309026U (en) * | 2017-08-27 | 2018-05-04 | 泰达长林管道科技（江西）股份有限公司 | A kind of new suction bits boring cutter |
| CN207568504U (en) * | 2017-11-10 | 2018-07-03 | 中石化石油工程技术服务有限公司 | Power drilling tool seal transmission shaft without untwisting angle |
| CN108678678A (en) * | 2018-06-06 | 2018-10-19 | 中国矿业大学 | A kind of mine double-layer dry type dust suction drill bit |
| CN109488210A (en) * | 2018-10-12 | 2019-03-19 | 徐州市三成铸业有限公司 | A kind of bilayer drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108915602B (en) | 2020-11-24 |
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