CN201695954U - High-sharp sintered diamond bit embedded with iron wires - Google Patents
High-sharp sintered diamond bit embedded with iron wires Download PDFInfo
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- CN201695954U CN201695954U CN2010202344843U CN201020234484U CN201695954U CN 201695954 U CN201695954 U CN 201695954U CN 2010202344843 U CN2010202344843 U CN 2010202344843U CN 201020234484 U CN201020234484 U CN 201020234484U CN 201695954 U CN201695954 U CN 201695954U
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Abstract
The utility model relates to a diamond bit, in particular to a high-sharp sintered diamond bit embedded with iron wires, which comprises a steel body and a diamond bit embedded body, wherein the steel body is in a barrel shape, the lower end surface of the steel body and the upper end surface of the diamond bit embedded body are sintered into a whole body by adopting hot pressing, and the lower end surface of the diamond bit embedded body is a diamond bit working labial surface which is distributed with water distribution ports. The utility model is characterized in that the inner edge of the diamond working labial surface is radially embedded with the iron wires. The diamond bit has the advantages of high sharpness and long service life.
Description
Technical field
The utility model relates to a kind of diamond bit.
Background technology
Since promoting diamond probing technology, diamond-impregnated bit in the coalfield, fields such as subterranean resource exploration such as geology, oil and building have all obtained using widely.The diamond-impregnated bit working lining is made up of diamond and carcass material.Adamantine function is a Cutting Rock, and carcass material then plays and plates and support adamantine effect.In drilling process, diamond-impregnated bit should mate the stratum, and carcass constantly weares and teares, and diamond particles constantly goes out sword, gets rock with efficiency crushing and gram, realizes drilling process.
Yet when creeping in the abrasive layer a little less than hard and compact (claim again " skidding " stratum), the drill bit ubiquity is drilling depth and skidding not, perhaps can drilling depth but extremely low situation of life-span.As at the quartz content height, compact structure, when creeping in the weak stratum of abrasiveness, rock dust is few and particle is thin, very little to the diamond tyre body abrasion, diamond is difficult to sword, skid and drilling depth not, or drilling depth is extremely slow, timeliness is about 0.1～0.2m, and footage per round trip is 0.2～0.5m only, and bit life is 2～3m only.Low the becoming of drilling efficiency creeps into the weak abrasiveness rock stratum of hard and compact one big technical barrier.
To solving the drill slipping problem, a lot of researchs are arranged both at home and abroad, as improving diamond intensity, granularity, reduce diamond concentration, change the carcass abrasion resistance, optimize bit bottom lip surface shape and structure, increase drill bit mouth of a river number or the like measure.Method commonly used is specially:
Adopt diamond manually to go out the sword method: to throw sand polishing, soft carcass method at the bottom of polishing method, sand-blast, labial surface etch, the hole, weak-wrapped method, low diamond concentration method, special-shaped labial surface drill bit such as high-low blade, concentric circles pointed tooth method etc. also have impact rotating to creep into Process in addition.Preceding several method is artificial emergent supplementary means, makes diamond go out sword again, has overcome skidding to a certain extent.But troublesome poeration is not the solution of essence; Soft carcass method (HRC10～15) needs higher the pressure of the drill, and higher the pressure of the drill makes the carcass distortion easily, and controlling property of diamond particles is poor, also causes hole deviation easily; Weak-wrapped method, low diamond concentration method have improved drilling efficiency to a certain extent, but have restricted bit life; Abnormity labial surface method manufacturing process relative complex, the die cost height; Impact rotating creeps into Process needs special facility.
In a word, when creeping into the weak abrasive layer of hard and compact, the sharpness of drill bit and life-span are a pair of contradiction all the time.If tyre body hardness is excessive or diamond concentration is too high, then diamond can't go out sword, causes sharpness poor, and it is low to creep into timeliness; If tyre body hardness is too small, diamond concentration is low excessively, then bit life greatly reduces, and the diamond bit of therefore, design and produce that specific pressure is big, strong from sharp ability, the life-span is long is significant
Summary of the invention
The purpose of this utility model is to provide a kind of high sharp sintered type diamond bit of intercalation iron wire, and this diamond bit has sharpness height, long characteristics of life-span.
To achieve these goals, technical solution adopted in the utility model is: the high sharp sintered type diamond bit of intercalation iron wire, it comprises steel body, impregnated with diamond body, the steel body is cylinder-shaped, the upper surface of the lower surface of steel body and impregnated with diamond body adopts hot pressed sintering to be integral, the lower surface of impregnated with diamond body is a diamond work labial surface, is furnished with the mouth of a river on the diamond work labial surface; It is characterized in that: in the diamond work labial surface radially intercalation iron wire is arranged.
Intercalation has the outer footpath glomerocryst bar of protecting on the lateral surface of described impregnated with diamond body, protects footpath glomerocryst bar on the medial surface of impregnated with diamond body there being intercalation.
The beneficial effects of the utility model are:
1. during sintered bit, iron wire is distributed on the diamond bit work labial surface by intercalation.When creeping into, because the quick wearing and tearing of iron wire form scraggly Wave crest and wave trough in drill bit bottom (working lining of impregnated with diamond body), drill bit strengthens from sharp ability, creeps into the timeliness height, improves more than 1 times than conventional efficiency.This diamond bit has the high characteristics of sharpness.
2. because the embeddeding action of iron wire, the mechanical index of the other materials of impregnated with diamond body (carcass material) can correspondingly improve, therefore, bit life compare traditional soft carcass or low concentration diamond impregnated bit, raising has by a relatively large margin been arranged, and cost reduces, and the life-span can improve more than 80%, and cost reduces more than 35% (more concentric pointed tooth and high-low blade drill bit).
3. it is long that such drill bit has sharpness height, life-span, make simple, workable characteristics.Solved when a little less than hard and compact, creeping in the abrasive layer drill bit problem of " skidding ".
Application: because the high sharp sintered type diamond bit of intercalation iron wire has solved drill bit when creeping in the abrasive layer problem of " skidding " effectively a little less than hard and compact, it is long to have sharpness height, life-span again, makes simply workable characteristics.Therefore, application will be more wide, can be widely used in fields such as exploration of subterranean resource such as coalfield, geology, oil and building, all bring huge economic benefit and social benefit for drill produced side and drill bit user.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is along the sectional view of A-A line among Fig. 1;
Fig. 3 is a B portion enlarged drawing among Fig. 1;
Fig. 4 is a stereogram of the present utility model;
Fig. 5 is preparation technology figure of the present utility model;
Among the figure: protect footpath glomerocryst bar in the 1-steel body, 2-, 3-iron wire, 4-are protected footpath glomerocryst bar, the 5-mouth of a river, 6-impregnated with diamond body, 7-diamond work labial surface (work plane) outward.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the high sharp sintered type diamond bit of intercalation iron wire, it comprises steel body 1, impregnated with diamond body 6, steel body 1 is cylinder-shaped, the upper surface of the lower surface of steel body 1 and impregnated with diamond body 6 adopts hot pressed sintering to be integral, impregnated with diamond body 6 is cylinder-shaped, impregnated with diamond body 6 is made up of working lining (diamond working layers) and inoperative layer, working lining is positioned at the below of inoperative layer, the lower surface of impregnated with diamond body 6 is a diamond work labial surface 7, is uniformly distributed with the mouth of a river 5 along the circumference on the diamond work labial surface 7; In the diamond work labial surface 7 radially (be steel body 1 axially) intercalation iron wire 3 (adopt the 12# iron wire, promptly diameter is 12mm) is arranged.
Intercalation has the outer footpath glomerocryst bar 4 of protecting on the lateral surface of described impregnated with diamond body 6, protects footpath glomerocryst bar 2 on the medial surface of impregnated with diamond body 6 there being intercalation.
When sintering is made diamond-impregnated bit, the iron wire of certain diameter, length and quantity is protected the footpath glomerocryst as inlaying, intercalation also is distributed on the diamond work labial surface.As shown in Figure 1, iron wire 2 embeds the drill bit labial surface, and its quantity and distribution form depend on stratum hardness and abrasiveness.
It makes sintering process: on the conventional operation basis that makes diamond-impregnated bit, increase aided process (as shown in Figure 5), after promptly the iron wire of some, diameter and length being cleaned through cutting, rust cleaning sandblast, acetone, press certain regularity of distribution intercalation in carcass powder, and through oversintering, iron wire and carcass powder are whole in conjunction with forming behind the sintering.The quantity of iron wire, length, size and distribution are adjusted according to the specification and the accommodation of drill bit, and be slightly different.
Operating principle: the drill bit of production, when work, the point-like iron wire of distribution labial surface does not directly destroy rock, and its hardness and wear resistance is more much lower than diamond working layers, be easy to be worn, and other positions of labial surface (inoperative layer) can adopt the diamond of conventional hardness carcass and respective concentration.Like this, in drilling process, scraggly labial surface is formed automatically on the drill bit bottom, have the Wave crest and wave trough shape facility, when flushing liquor flow through on the Wave crest and wave trough surface, the part landwaste was not in time washed away, can aggravate the abrasive action of landwaste to carcass, make the diamond drop-off of having worn and torn, the sharp diamond that exposure is new, self-sharpening is good.When creeping into, such drill bit is creeping into when skidding the rock stratum, and compressive load per unit area improves greatly on the labial surface, can obtain high rate of penetration, does not have the sharpening formula bit cutting tool weakness of rust gradually, has the rate of penetration height, creeps into steadily the characteristics that self-sharpening is good; Simultaneously, because other parts of labial surface can be taked conventional method, tyre body hardness and diamond concentration can suitably improve, and can greatly improve the life-span of drill bit.In addition, this preparation method has been saved diamond abrasive and carcass powder consumption owing to embed the iron wire of certain volume.Therefore, has good practical value.
Claims (2)
1. the high sharp sintered type diamond bit of intercalation iron wire, it comprises steel body (1), impregnated with diamond body (6), steel body (1) is cylinder-shaped, the upper surface of the lower surface of steel body (1) and impregnated with diamond body (6) adopts hot pressed sintering to be integral, the lower surface of impregnated with diamond body (6) is a diamond work labial surface (7), is furnished with the mouth of a river (5) on the diamond work labial surface (7); It is characterized in that: in the diamond work labial surface (7) radially intercalation iron wire (3) is arranged.
2. the high sharp sintered type diamond bit of intercalation iron wire according to claim 1, it is characterized in that: intercalation has the outer footpath glomerocryst bar (4) of protecting on the lateral surface of described impregnated with diamond body (6), protects footpath glomerocryst bar (2) on the medial surface of impregnated with diamond body (6) there being intercalation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202344843U CN201695954U (en) | 2010-06-24 | 2010-06-24 | High-sharp sintered diamond bit embedded with iron wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202344843U CN201695954U (en) | 2010-06-24 | 2010-06-24 | High-sharp sintered diamond bit embedded with iron wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695954U true CN201695954U (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202344843U Expired - Fee Related CN201695954U (en) | 2010-06-24 | 2010-06-24 | High-sharp sintered diamond bit embedded with iron wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695954U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201412A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Diamond drill bit containing high-manganese steel cone |
| CN106285487A (en) * | 2016-11-20 | 2017-01-04 | 丹阳金隆钻石工具有限公司 | Thin faced bit |
| CN107127347A (en) * | 2017-05-18 | 2017-09-05 | 中国有色桂林矿产地质研究院有限公司 | The method that sinter molding makes brill tooth is assembled using bar base |
| CN109989714A (en) * | 2019-05-05 | 2019-07-09 | 中国地质大学（北京） | A kind of deep hard formation ultrahigh rotating speed drilling uses drill bit |
-
2010
- 2010-06-24 CN CN2010202344843U patent/CN201695954U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201412A (en) * | 2015-10-19 | 2015-12-30 | 无锡市永亿精密铸造有限公司 | Diamond drill bit containing high-manganese steel cone |
| CN106285487A (en) * | 2016-11-20 | 2017-01-04 | 丹阳金隆钻石工具有限公司 | Thin faced bit |
| CN107127347A (en) * | 2017-05-18 | 2017-09-05 | 中国有色桂林矿产地质研究院有限公司 | The method that sinter molding makes brill tooth is assembled using bar base |
| CN109989714A (en) * | 2019-05-05 | 2019-07-09 | 中国地质大学（北京） | A kind of deep hard formation ultrahigh rotating speed drilling uses drill bit |
| CN109989714B (en) * | 2019-05-05 | 2024-01-23 | 中国地质大学（北京） | Drill bit for ultra-high rotation speed drilling of deep hard stratum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130624 |