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
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- China
- Prior art keywords
- matrix
- drill bit
- circular cone
- rock
- graphite
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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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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |