CN2393994Y - Superhard composite edge coring bit - Google Patents
Superhard composite edge coring bit Download PDFInfo
- Publication number
- CN2393994Y CN2393994Y CN 99233774 CN99233774U CN2393994Y CN 2393994 Y CN2393994 Y CN 2393994Y CN 99233774 CN99233774 CN 99233774 CN 99233774 U CN99233774 U CN 99233774U CN 2393994 Y CN2393994 Y CN 2393994Y
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- CN
- China
- Prior art keywords
- superhard
- carcass
- sword
- coring bit
- working lining
- 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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- Drilling Tools (AREA)
Abstract
The utility model discloses a superhard composite blade core bit structure composed of a steel body (1), a matrix (2) and a superhard composite blade material combination (3). The superhard composite blade material combination (3) is composed of three types of substances or any two types of substances, such as a superhard composite body with a substrate, a superhard sintered body, a superhard single crystal and the like. The superhard composite blade coring bit has the advantages of good shock resistance, abrasion resistance, high drilling efficiency, long service life and superior comprehensive technical and economic indexes, and is suitable for industries and departments of geological exploration, engineering investigation, oil exploitation, engineering construction, engineering quality inspection and the like.
Description
The utility model relates to a kind of superhard compound sword coring bit, the engineering thin wall drilling bit of especially superhard compound sword and single tube, two-tube and wire line coring drill bit.
Coring bit is the thing of the indispensability of industries such as geological prospecting, engineering investigation, oil exploitation, engineering construction and engineering quality detection and department.For the quality that improves drilling life of bit and get the core product, superhard material cutting or grinding formula coring bit have appearred.Modal in the market have two kinds.A kind of is the impregnated with diamond coring bit, form by steel body, carcass and impregnated diamond in carcass, hard during this kind drill bit is applicable to hard working media, have certain shock resistance, but wear resistance is relatively poor, and the drilling depth life-span often is no more than 20 meters when the Drilling hard rock; Another kind is to show to be inlaid with gold the hard rock coring bit, is made up of the cutting cutlery that steel body, carcass and table are set on the carcass.The cutting cutlery of table edge is natural diamond or diamond sinter or diamond complex.Table be inlaid with gold the hard rock coring bit be applicable to soft in hard working media, Drilling efficient is than higher, but shock resistance is poor, easily tipping, fall sheet, fragment.
Prior art Chinese patent ZL89106159 discloses a kind of composite diamond cutting element.This composite diamond cutting element is to wrap up diamond with carbide alloy, makes the thick middle both sides and approaches, and forms the column of the similar convex lens in cross section through sintering.The coring bit that adopts this composite diamond cutting element to make, soft in can obtain higher Drilling efficient in the hard working media, and drill bit can grind sword certainly, penetration rate is constant relatively, but, its cutting element material is still single, and wear resistance is relatively poor, and application life is suitable with the impregnated with diamond coring bit.
The purpose of this utility model provides the superhard compound sword coring bit in a kind of high application life, and it is in extensive range not only to be suitable for working media, and can keep higher Drilling efficient in use.
For achieving the above object, the technical solution of the utility model is: superhard compound sword coring bit is made up of steel body 1, carcass 2 and superhard compound edge material combination 3.Superhard compound edge material combination 3 is impregnated in carcass by sintering, and the steel body is connected by sintering or soldering with carcass, and steel body and drilling tool or rig are by being threaded.Superhard compound edge material combination 3 is to be made of three class materials such as the superhard composite body at the bottom of the belt material, superhard sintered body and superhard monocrystalline or wherein any two classes.Carcass 2 height 4-30mm, superhard compound edge material combination is along whole or part carcass height placement, and carcass working lining height is equal to or less than the carcass height, carcass working lining wall thickness 2-20mm.Make up 3 except that impregnated superhard compound edge material in the carcass 2, can also impregnated carbide alloy.The carbide alloy volume accounts for whole carcass working lining volume 0-70%.Each the class material that constitutes superhard compound edge material combination 3 on the superhard compound sword coring bit all participates in the cutting or the ablation of bit matrix working lining labial surface.
Because superhard composite body or superhard sintered body at the bottom of the belt material have high abrasion resistance properties, and has thicker cutting edge, impregnated in carcass through sintering, by suitably initially going out sword, can bear certain shock loading, simultaneously, with impregnated in carcass the superhard single crystal grain of One's name is legion constitute unique compound sword coring bit, it is poor both to have overcome the hard rock coring bit shock resistance of showing to be inlaid with gold, only be suitable for soft in the deficiency of hard working media, it is poor to have overcome impregnated with diamond coring bit wear resistance again, the defective that application life is on the low side.
Accompanying drawing 1 is a main body view of the present utility model, i.e. the A-A sectional view of accompanying drawing 2.
Accompanying drawing 2 is left views of structure shown in Figure 1.
Below, in conjunction with the accompanying drawings 1 and accompanying drawing 2 an explanation embodiment of the present utility model.
Superhard compound sword coring bit shown in Figure 1 is made up of steel body 1, carcass 2 and superhard compound edge material combination 3.Superhard compound edge material combination 3 is impregnated in carcass 2 by sintering.Superhard compound edge material combination 3 is made up of diamond complex and diamond.Steel body 1 and carcass 2 are connected by sintering.Carcass 2 is divided into the working lining that contains superhard compound edge material combination and does not contain inoperative layer two parts of superhard compound edge material combination.Steel body 1 and drilling tool are by being threaded.Among Fig. 2, the superhard compound sword coring bit of present embodiment is provided with 3 tanks; Diamond complex is staggered along the carcass working lining labial surface radial direction of ring-type, overlap coefficient 10%, and going out the sword height along the initial end of drill bit radial direction is 300 μ m; Diamond is distributed in the carcass working lining, and particle diameter 300-600 μ m is 75% by emery wheel industry concentration system volumetric concentration.
The utility model is not limited to above-mentioned a kind of embodiment, and superhard compound sword coring bit carcass working lining can make up by the superhard compound edge material of impregnated other type, as diamond sinter and diamond, or diamond complex, diamond sinter and diamond; Equally, cloth sword mode also is not limited to symmetrically and distributes, and can also adopt non-homogeneous distribution or asymmetrical distribution; In addition except that impregnated superhard compound edge material combination, can also impregnated carbide alloy, at this moment, actual cut sword or grinding sword are the compound more widely sword groups of meaning.These conversion all drop within the protection domain of the present utility model.
Claims (4)
1, a kind of superhard compound sword coring bit, form by steel body (1), carcass (2), superhard compound edge material combination (3), superhard compound edge material combination (3) is impregnated in carcass (2) by sintering, steel body (1) is connected by sintering or soldering with carcass (2), it is characterized in that: impregnated superhard compound edge material combination (3) is to be made of three class materials such as the superhard composite body at the bottom of the belt material, superhard sintered body and superhard monocrystalline or wherein any two classes in the carcass (2); Carcass (2) height 4-30mm, superhard compound edge material combination is along whole or part carcass height placement, and carcass working lining height is equal to or less than the carcass height, carcass working lining wall thickness 2-20mm; In the carcass (2) except that impregnated superhard compound edge material combination (3), can also impregnated carbide alloy, the carbide alloy volume accounts for whole carcass working lining volume 0-70%.
2, superhard compound sword coring bit according to claim 1 is characterized in that: the superhard composite body at the bottom of the belt material is staggered along the carcass working lining labial surface radial direction of ring-type, and overlap coefficient is 1-50%, or traverses carcass working lining wall thickness arrangement; The initial end along the drill bit axial direction goes out the high 0-5000 μ m of being of sword; Arrange the superhard composite body 2-80 sheet at the bottom of the belt material on every superhard compound sword coring bit, wherein, the superhard composite body at the bottom of the belt material is diamond complex or cubic boron nitride complex.
3, superhard compound sword coring bit according to claim 1 is characterized in that: superhard sintered body is staggered along the carcass working lining labial surface radial direction of ring-type, and overlap coefficient is 1-50%, or traverses carcass working lining wall thickness arrangement; The initial end along the drill bit axial direction goes out the high 0-4000 μ m of being of sword; Arrange superhard sintered body 2-240 on every superhard compound sword coring bit, wherein, superhard sintered body is diamond sinter or cubic boron nitride sintered body.
4, superhard compound sword coring bit according to claim 1, it is characterized in that: superhard monocrystalline particle diameter is 40-1200 μ m, 25-125% is distributed in the carcass working lining by emery wheel industry concentration system volumetric concentration, wherein, superhard monocrystalline is natural diamond or diamond or cubic boron nitride, or the mixture that any two classes or three classes are formed in the superhard monocrystalline of this three class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99233774 CN2393994Y (en) | 1999-07-27 | 1999-07-27 | Superhard composite edge coring bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99233774 CN2393994Y (en) | 1999-07-27 | 1999-07-27 | Superhard composite edge coring bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393994Y true CN2393994Y (en) | 2000-08-30 |
Family
ID=34022107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99233774 Expired - Fee Related CN2393994Y (en) | 1999-07-27 | 1999-07-27 | Superhard composite edge coring bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2393994Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667049A (en) * | 2009-09-22 | 2012-09-12 | 长年Tm公司 | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
| CN108518227A (en) * | 2018-05-16 | 2018-09-11 | 鄂州职业大学 | A kind of shield cutter and its preparation process |
| CN113798781A (en) * | 2020-06-15 | 2021-12-17 | 河南中岳非晶新型材料股份有限公司 | Machining process of air blowing guide pipe |
-
1999
- 1999-07-27 CN CN 99233774 patent/CN2393994Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102667049A (en) * | 2009-09-22 | 2012-09-12 | 长年Tm公司 | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
| CN102667049B (en) * | 2009-09-22 | 2015-08-05 | 长年Tm公司 | There is large mill impregnated cutting element cutting medium and production and preparation method thereof |
| CN108518227A (en) * | 2018-05-16 | 2018-09-11 | 鄂州职业大学 | A kind of shield cutter and its preparation process |
| CN113798781A (en) * | 2020-06-15 | 2021-12-17 | 河南中岳非晶新型材料股份有限公司 | Machining process of air blowing guide pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |