CN205243425U - Drill bit that contains graphite circular cone - Google Patents
Drill bit that contains graphite circular cone Download PDFInfo
- Publication number
- CN205243425U CN205243425U CN201520804466.7U CN201520804466U CN205243425U CN 205243425 U CN205243425 U CN 205243425U CN 201520804466 U CN201520804466 U CN 201520804466U CN 205243425 U CN205243425 U CN 205243425U
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- CN
- China
- Prior art keywords
- circular cone
- drill bit
- mole
- graphite circular
- rock
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a drill bit that contains graphite circular cone, including the steel body, matrix, mole, the steel body coupling the matrix, the matrix be the annular, the mole spacer ring to set up being in the matrix on, the mole include that potassium steel base member and a plurality of locate the graphite circular cone in the potassium steel base member, the graphite circular cone invert the embedding the mole in. In this way, the utility model provides a when the drill bit creeps into, when molar lip face contacts with the rock, the pressure of applying on diamond bit makes graphite circular cone and diamond matrix while and rock contact friction, because graphite material hardness is little, graphite circular cone with the rock contact on the lip face receives earlier wearing and tearing than potassium steel base member, make the lip face and the effective area of rock contact reduce, under the same condition of pressure, the lip face can provide bigger pressure and apply on the rock, and simultaneously, the potassium steel base member receives impact load, plastic deformation takes place for the surface, make base member surface hardness increase substantially, the abrasion resistance reinforcing, change the fractured rock, drill bit drilling speed improves, it is slow to have solved drilling speed, the serious problem of drill bit wearing and tearing.
Description
Technical field
The utility model relates to drill bit field, particularly relates to a kind of drill bit that contains 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-making surface of mole and rock is its labial surface. At present, diamond bit the most commonly on market, when diamond bit creeps into, diamond bit labial surface and rock contact area are large, make the labial surface of carcass put on the pressure of rock not enough so that its fragmentation, make diamond bit speed in the time creeping into slow, and, though diamond hardness is large, in the time receiving powerful load, cannot utilize this impact to strengthen case hardness, still easy to wear.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of drill bit that contains graphite circular cone, and in the time being subject to shock loading, the pressure by change labial surface to rock and the hardness of labial surface strengthen improving the drilling efficiency of drill bit.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of drill bit that contains graphite circular cone is provided, it is characterized in that, comprise: steel body, carcass, mole, described steel body connects described carcass, and described carcass is annular, and described mole spacer ring is to being arranged on described carcass, described mole comprises that potassium steel matrix and several are located at the graphite circular cone in potassium steel matrix, and described graphite circular cone is inverted and is embedded in described mole.
In preferred embodiment of the utility model, described graphite circular cone is evenly distributed in each mole, has 4-8 in each mole.
In preferred embodiment of the utility model, described graphite circular cone is inverted, the bearing of trend of its central shaft and the axially parallel of described drill bit.
In preferred embodiment of the utility model, described carcass by hot pressed sintering on described steel body.
In preferred embodiment of the utility model, size, arrangement mode and the arranging density etc. of graphite circular cone can regulate according to actual needs.
The beneficial effects of the utility model are: when drill bit provided by the utility model creeps into, in the time that the labial surface of mole contacts with rock, the pressure putting on diamond bit makes graphite circular cone and diamond carcass while and rock contact friction, because graphite material hardness is little, the graphite circular cone contacting with rock on labial surface is first worn than potassium steel matrix, the effective area that labial surface is contacted with rock reduces, in the situation that 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 deformation in surface, matrix surface 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.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the cross-sectional view of a kind of drill bit that contains graphite circular cone one preferred embodiment of the utility model;
Fig. 2 be shown in the floor map of 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
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:
A kind of drill bit that contains 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 rings are to being arranged on described carcass 2, and described mole 3 comprises that potassium steel matrix 4 and several are located at the graphite circular cone 5 in potassium steel matrix 4, and described graphite circular cone 5 is inverted and is embedded in described mole 3.
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, the bearing of trend of its central shaft and the axially parallel of described drill bit.
In another embodiment, described carcass 2 by hot pressed sintering on described steel body 1, easily 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.
The utility model operation principle: when drill bit provided by the utility model creeps into, in the time that the labial surface of mole contacts with rock, the pressure putting on diamond bit makes graphite circular cone and diamond carcass while and rock contact friction, because graphite material hardness is little, the graphite circular cone contacting with rock on labial surface is first worn than potassium steel matrix, the effective area that labial surface is contacted with rock reduces, and in the situation that pressure is identical, labial surface can provide larger pressure to put on rock.
Meanwhile, potassium steel matrix is subject to shock loading, and plastic deformation occurs on surface, and matrix surface hardness is increased substantially, and abrasion resistance strengthens, easier fractured rock, and drill bit rate of penetration improves, and has solved the problem that rate of penetration is slow, bit wear is serious.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; 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 utility model.
Claims (4)
1. a drill bit that contains graphite circular cone, it is characterized in that, comprise: steel body, carcass, mole, described steel body connects described carcass, described carcass is annular, described mole spacer ring is to being arranged on described carcass, and described mole comprises that potassium steel matrix and several are located at the graphite circular cone in potassium steel matrix, and described graphite circular cone is inverted and is embedded in described mole.
2. the drill bit that contains graphite circular cone according to claim 1, is characterized in that, described graphite circular cone is evenly distributed in each mole, has 4-8 in each mole.
3. the drill bit that contains graphite circular cone according to claim 1, is characterized in that, described graphite circular cone is inverted, the bearing of trend of its central shaft and the axially parallel of described drill bit.
4. the drill bit that contains graphite circular cone according to claim 1, is characterized in that, described carcass by hot pressed sintering on described steel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804466.7U CN205243425U (en) | 2015-10-19 | 2015-10-19 | Drill bit that contains graphite circular cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804466.7U CN205243425U (en) | 2015-10-19 | 2015-10-19 | Drill bit that contains graphite circular cone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243425U true CN205243425U (en) | 2016-05-18 |
Family
ID=55942505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520804466.7U Expired - Fee Related CN205243425U (en) | 2015-10-19 | 2015-10-19 | Drill bit that contains graphite circular cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201411A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Drill bit containing graphite cone |
-
2015
- 2015-10-19 CN CN201520804466.7U patent/CN205243425U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201411A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Drill bit containing graphite cone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161019 |