CN105201411A - Drill bit containing graphite cone - Google Patents
Drill bit containing graphite cone Download PDFInfo
- Publication number
- CN105201411A CN105201411A CN201510672816.3A CN201510672816A CN105201411A CN 105201411 A CN105201411 A CN 105201411A CN 201510672816 A CN201510672816 A CN 201510672816A CN 105201411 A CN105201411 A CN 105201411A
- Authority
- CN
- China
- Prior art keywords
- matrix
- drill bit
- circular cone
- rock
- graphite
- 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.)
- Pending
Links
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 37
- 239000010439 graphite Substances 0.000 title claims abstract description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000011159 matrix material Substances 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 229910052700 potassium Inorganic materials 0.000 claims description 11
- 239000011591 potassium Substances 0.000 claims description 11
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 22
- 229910003460 diamond Inorganic materials 0.000 abstract description 11
- 239000010432 diamond Substances 0.000 abstract description 11
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000007770 graphite material Substances 0.000 abstract description 3
- 229910000617 Mangalloy Inorganic materials 0.000 abstract 4
- 230000035515 penetration Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 simultaneously Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a drill bit containing a graphite cone. The drill bit comprises a steel body, a matrix body and matrix blocks, wherein the steel body is connected with the matrix body, the matrix body is annular, the matrix blocks are arranged on the matrix body annularly at an interval, each matrix block comprises a high-manganese steel matrix and a plurality of graphite cones arranged in the high-manganese steel matrix, and the graphite cones are embedded into the matrix blocks in an inverted manner. By adopting the manner, when the drill bit provided by the invention is used for drilling, and the labial surface of the matrix block is in contact with the rock, due to the pressure applied on the diamond drill bit, the graphite cones and the diamond matrix body are in contact friction with the rock at the same time, and because the graphite material has small hardness, the graphite cones contacting the rock on the labial surface are worn before the high-manganese steel matrix, so that the effective contact area between the labial surface and the rock is reduced, and under the condition of the same pressure, the labial surface can provide more pressure on the rock; at the same time, the high-manganese steel matrix is subjected to impact loading, plastic deformation is generated on the surface, so that the hardness of the matrix surface is greatly increased, the wear resistance is enhanced, the rock is easily broken, the drilling speed of the drill bit is increased, and the problems that the drilling speed is low and the drill bit is seriously worn are solved.
Description
Technical field
The present invention relates to drill bit field, particularly relate to a kind of drill bit containing graphite circular cone.
Background technology
The fields such as municipal administration road and bridge, building, exploration, drill bit is widely used, and drill bit generally includes a steel body and a carcass, and carcass is provided with several moles, and the contact surface of mole and rock is its labial surface.At present, the most commonly diamond bit on market, when diamond bit creeps into, greatly, the pressure making the labial surface of carcass put on rock is not enough to make it broken for diamond bit labial surface and rock contact area, make diamond bit to creep into hourly velocity slow, further, though diamond hardness is large, when receiving powerful load, this impact cannot be utilized to strengthen case hardness, still easy to wear.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of drill bit containing graphite circular cone, when being subject to shock loading, strengthens by the hardness of change labial surface to the pressure of rock and labial surface the drilling efficiency improving drill bit.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of drill bit containing graphite circular cone, it is characterized in that, comprise: steel body, carcass, mole, carcass described in described steel body connects, described carcass is annular, and described mole spacer ring is to being arranged on described carcass, described mole comprises potassium steel matrix and several are located at graphite circular cone in potassium steel matrix, and described graphite circular cone is inverted in the mole described in embedding.
In a preferred embodiment of the present invention, described graphite circular cone is evenly distributed in each mole, has 4-8 in each mole.
In a preferred embodiment of the present invention, described graphite circular cone is inverted, and the bearing of trend of its central axis is parallel with the axis of described drill bit.
In a preferred embodiment of the present invention, described carcass by hot pressed sintering on described steel body.
In a preferred embodiment of the present invention, size, the arrangement mode and arranging density etc. of graphite circular cone can regulate according to actual needs.
The invention has the beneficial effects as follows: when drill bit provided by the present invention creeps into, when labial surface and the rock contact of mole, the pressure put on diamond bit make graphite circular cone and diamond matrix simultaneously with rock contact friction, because graphite material hardness is little, labial surface is first worn than potassium steel matrix with the graphite circular cone of rock contact, the effective area of labial surface and rock contact is reduced, when pressure is identical, labial surface can provide larger pressure to put on rock, simultaneously, potassium steel matrix is subject to shock loading, there is plastic strain in surface, matrix skin hardness is increased substantially, abrasion resistance strengthens, easier fractured rock, drill bit rate of penetration improves, solve rate of penetration slow, the problem that bit wear is serious.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the cross-sectional view of a kind of drill bit one preferred embodiment containing graphite circular cone of the present invention;
Fig. 2 is the floor map of shown drill bit labial surface;
In accompanying drawing, the mark of each parts is as follows: 1-steel body, 2-carcass, 3-mole, 4-potassium steel matrix, 5-graphite circular cone.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A kind of drill bit containing graphite circular cone, it is characterized in that, comprise: steel body 1, carcass 2, mole 3, described steel body 1 connects described carcass 2, described carcass 2 is annular, described mole 3 spacer ring is to being arranged on described carcass 2, and described mole 3 comprises potassium steel matrix 4 and several are located at graphite circular cone 5 in potassium steel matrix 4, and described graphite circular cone 5 is inverted in the mole 3 described in embedding.
Be different from prior art.
In another embodiment, described graphite circular cone 5 is evenly distributed in each mole 3, has 4-8 in each mole 3.
In another embodiment, described graphite circular cone 5 is inverted, and the bearing of trend of its central axis is parallel with the axis of described drill bit.
In another embodiment, described carcass 2 is by hot pressed sintering on described steel body 1, and easy mass production, and the steady quality of product, processing technology is simple.
In another embodiment, the size of graphite circular cone 5, arrangement mode and arranging density etc. can regulate according to actual needs.
Operating principle of the present invention: when drill bit provided by the present invention creeps into, when labial surface and the rock contact of mole, the pressure put on diamond bit make graphite circular cone and diamond matrix simultaneously with rock contact friction, because graphite material hardness is little, labial surface is first worn than potassium steel matrix with the graphite circular cone of rock contact, the effective area of labial surface and rock contact is reduced, and when pressure is identical, labial surface can provide larger pressure to put on rock.
Meanwhile, potassium steel matrix is subject to shock loading, and plastic strain occurs on surface, and matrix skin hardness is increased substantially, and abrasion resistance strengthens, easier fractured rock, and drill bit rate of penetration improves, and solves the problem that rate of penetration is slow, bit wear is serious.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. the drill bit containing graphite circular cone, it is characterized in that, comprise: steel body, carcass, mole, carcass described in described steel body connects, described carcass is annular, described mole spacer ring is to being arranged on described carcass, and described mole comprises potassium steel matrix and several are located at graphite circular cone in potassium steel matrix, and described graphite circular cone is inverted in the mole described in embedding.
2. the drill bit containing graphite circular cone according to claim 1, it is characterized in that, described graphite circular cone is evenly distributed in each mole, has 4-8 in each mole.
3. the drill bit containing graphite circular cone according to claim 1, is characterized in that, described graphite circular cone is inverted, and the bearing of trend of its central axis is parallel with the axis of described drill bit.
4. the drill bit containing graphite circular cone according to claim 1, is characterized in that, described carcass by hot pressed sintering on described steel body.
5. the drill bit containing graphite circular cone according to claim 1, is characterized in that, the size of graphite circular cone, arrangement mode and arranging density etc. can regulate according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510672816.3A CN105201411A (en) | 2015-10-19 | 2015-10-19 | Drill bit containing graphite cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510672816.3A CN105201411A (en) | 2015-10-19 | 2015-10-19 | Drill bit containing graphite cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105201411A true CN105201411A (en) | 2015-12-30 |
Family
ID=54949324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510672816.3A Pending CN105201411A (en) | 2015-10-19 | 2015-10-19 | Drill bit containing graphite cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201411A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150636A (en) * | 1991-06-28 | 1992-09-29 | Loudon Enterprises, Inc. | Rock drill bit and method of making same |
| CN202157752U (en) * | 2011-08-01 | 2012-03-07 | 中矿资源勘探股份有限公司 | Diamond drill bit with graphite particles |
| CN202165015U (en) * | 2011-08-01 | 2012-03-14 | 中矿资源勘探股份有限公司 | Diamond bit comprising graphite cylinder |
| WO2013143348A1 (en) * | 2012-03-27 | 2013-10-03 | 北京迪蒙集智科技有限公司 | Twist drill for drilling fine holes on high-strength and high-hardness alloy material |
| CN103850652A (en) * | 2014-03-27 | 2014-06-11 | 湖南易通矿山工程机械有限公司 | Process for inlaying alloy teeth of rock drilling bit |
| CN205243425U (en) * | 2015-10-19 | 2016-05-18 | 无锡市永亿精密铸造有限公司 | Drill bit that contains graphite circular cone |
-
2015
- 2015-10-19 CN CN201510672816.3A patent/CN105201411A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5150636A (en) * | 1991-06-28 | 1992-09-29 | Loudon Enterprises, Inc. | Rock drill bit and method of making same |
| CN202157752U (en) * | 2011-08-01 | 2012-03-07 | 中矿资源勘探股份有限公司 | Diamond drill bit with graphite particles |
| CN202165015U (en) * | 2011-08-01 | 2012-03-14 | 中矿资源勘探股份有限公司 | Diamond bit comprising graphite cylinder |
| WO2013143348A1 (en) * | 2012-03-27 | 2013-10-03 | 北京迪蒙集智科技有限公司 | Twist drill for drilling fine holes on high-strength and high-hardness alloy material |
| CN103850652A (en) * | 2014-03-27 | 2014-06-11 | 湖南易通矿山工程机械有限公司 | Process for inlaying alloy teeth of rock drilling bit |
| CN205243425U (en) * | 2015-10-19 | 2016-05-18 | 无锡市永亿精密铸造有限公司 | Drill bit that contains graphite circular cone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |