CN202900048U - Diamond-setting side-wall coring bit - Google Patents
Diamond-setting side-wall coring bit Download PDFInfo
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- CN202900048U CN202900048U CN 201220565768 CN201220565768U CN202900048U CN 202900048 U CN202900048 U CN 202900048U CN 201220565768 CN201220565768 CN 201220565768 CN 201220565768 U CN201220565768 U CN 201220565768U CN 202900048 U CN202900048 U CN 202900048U
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- drill bit
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Abstract
The utility model discloses a diamond-setting side-wall coring bit which comprises a steel body, a base body and diamond, wherein the base body comprises a working layer and a non-working layer, the working layer of the base body is fixedly connected with the steel body through the non-working layer of the base body, cutting bodies are formed on the working layer of the base body, a cutting edge is formed on a working end face of each cutting body, the diamond is set on the surface of each cutting edge and the surface of the base body, water ports are arranged between the cutting bodies, angles of the cutting edge is 10 degrees to 30 degrees, and the number of the water ports is 3-10. According to the diamond-setting side-wall coring bit, the angles of the cutting edges can effectively improve anti-impact capacity of diamond abrasive grains in operation, and aiming at different lithological strata, the bit which is medium in the number of the water ports, the size of the working end face and hardness of the base body is chosen to improve timeliness of coring operation.
Description
Technical field
The utility model relates to a kind of drill bit, particularly, relates to a kind of table hard rock side-wall coring drill bit that is inlaid with gold.
Background technology
When using hollow boring bit to drill through borehole wall core; drill bit will bear very large pressure usually; drill bit often is subject to great wearing and tearing; thereby have influence on the efficient of boring; generally make drill bit with hard metal material now; but when drill bit runs into the hard rock stratum; the operating efficiency of drill bit can be had a greatly reduced quality usually; and drill bit can be wrapped up and cisco unity malfunction by chip; existing solution to the problems described above is that the working lining of carcass is made cutting edge, and cutting edge and rock stratum contact surface have certain angle, and at the work plane of carcass the mouth of a river are set; use hydraulic energy and wash away the chip that produces in the well logging coring process; but existing drill edge is generally 60 degree, and angle is excessive, so that the working lining of carcass easily ruptures; and the mouth of a river that arranges is very few, has affected the chip removal ability at the mouth of a river.
The utility model content
In order to solve the problems of the technologies described above, the utility model discloses that a kind of cutting edge profile is suitable, tyre body hardness is moderate and table that can the Effective Raise drill bit chip removal ability hard rock side-wall coring drill bit that is inlaid with gold.
The disclosed table of the utility model hard rock side-wall coring drill bit that is inlaid with gold, comprise steel body, carcass and diamond, described carcass comprises working lining and inoperative layer, the working lining of described carcass is fixedly connected with described steel body by the inoperative layer of described carcass, form cutting body on the working lining of described carcass, form cutting edge on the operative end surface of described cutting body, diamond is all shown to stud with in described cutting edge and carcass surface, between the described cutting body mouth of a river is set, the angle of described cutting edge is 10 °-30 °, and the number at the described mouth of a river is 3-10.
Preferably, the angle of described cutting edge is 15 ° or 20 °.
Preferably, the number at the described mouth of a river is 6.
Preferably, the described mouth of a river is wedge shape, and is distributed between the described cutting body according to the circumference forms of radiation.
Preferably, the internal diameter of described diamy is 25mm, and external diameter is 33-35.8mm.
Preferably, described carcass is hard metal material carcass.
Preferably, described carcass is tungsten base material carcass or copper base material carcass.
Preferably, described diamond is arranged along involute on the operative end surface of described cutting body.
Preferably,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 20 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 20 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are copper base material carcass, perhaps,
Described diamond be 80 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass, perhaps,
Described diamond be 80 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 5, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 80 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are copper base material carcass.
The angle of the utility model cutting edge can effectively be improved diamond abrasive grain at the impact resistance in when work, and for the stratum of different lithology, selects mouth of a river number, operative end surface size and the moderate drill bit of tyre body hardness to improve coring ageing.
Description of drawings
Fig. 1 shows to be inlaid with gold hard rock side-wall coring drill bit structure schematic diagram among the utility model embodiment.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, hereinafter in connection with accompanying drawing embodiment of the present utility model is elaborated.Need to prove, in the situation that do not conflict, the feature among the present embodiment and the embodiment is any combination mutually.
Among the disclosed embodiment of the utility model, a kind of diamy is provided, comprise steel body 1, carcass 2 and diamond 3, carcass 2 comprises working lining and inoperative layer, the working lining of carcass 2 is fixedly connected with steel body 1 by the inoperative layer of carcass 2, form cutting body on the working lining of carcass 2, form cutting edge 4 on the operative end surface of cutting body, diamond 3 is all shown to stud with in cutting edge and carcass 2 surfaces, the mouth of a river 5 is set between the cutting body, the angle of cutting edge 4 is 10 °-30 °, and the number at the mouth of a river is 3-10.
The impact resistance of the angle of cutting edge 4 and carcass 2 working linings has very large relation in the present embodiment, the angle of cutting edge 4 is excessive, the impact resistance of the working lining of carcass 2 can die down, the working lining of carcass 2 may rupture and drill bit can't be worked when drill bit drills through the larger rock stratum of hardness, on the contrary, during the angle too small of cutting edge 4, angle is too small and affect the cutting ability of carcass 2 working linings between the cutting face of carcass 2 and the section of rock, thereby affects the drill bit operating efficiency.Cutting edge 4 angles in this enforcement are 10 °-30 °, can avoid diamond to drill through competent bed when guaranteeing the bit cutting performance and the problem that may rupture, and the angle of cutting edge 4 is preferably 15 ° or 20 °.
Earth formation and hardness that the mouth of a river 5 numbers and the drill bit of drill bit drill through are relevant, when being used for soft formation or medium-hard stratum, because the work plane of drill bit is smaller, drill bit creeps into the speed per hour degree than very fast, the chip of rock stratum is many and thick, can be wide and lack in the mouth of a river, but during for the larger stratum of hardness, because the work plane of drill bit is large, should be how and be close in the mouth of a river, very few and can not adapt to problem than hard formation for fear of the mouth of a river 5 quantity of drill bit, the quantity at the mouth of a river is 3-10 in the present embodiment, and when drilling through soft formation or medium-hard stratum, the number at the mouth of a river can be elected 3-6 as, when drilling through the larger stratum of hardness, the number at the mouth of a river can be elected 6-10 as.
The utility model does not limit the shape at the mouth of a river 5, in the present embodiment, the mouth of a river is wedge shape, and be distributed in according to the circumference forms of radiation on the operative end surface of cutting body, debris removal ability that can the Effective Raise mouth of a river 5, and the mouth of a river 5 direction radially can be angled with the diameter of the end face of the working lining of carcass 2, promotes flushing liquor to the erosion effect of carcass 2 working lining end faces.
Because the core requirement that the rotation borehole wall coring instrument takes out is certain, maximum gauge is generally 25mm, so as long as the internal diameter of drill bit can meet this requirement at present.But the size of external diameter then need to be as the case may be and fixed, and different internal-and external diameters have caused the different areas of cut.For example drilling through identical stratum and at the pressure of the drill under certain and internal diameter one stable condition, external diameter is larger, the area of cut is just larger, then gets the resistance that core runs into also larger; External diameter is less, and the area of cut is just less, then gets the resistance that core runs into also less.In the disclosed embodiment of the utility model, external diameter is 33-35.8mm.When drilling through harder rock stratum, external diameter can be elected 33mm as, and at this moment, the resistance that runs into when drill bit is got core is less, and the speed that creeps into is when drilling through soft or during medium-hard rock stratum, external diameter can be elected 35.8mm as.
Carcass 2 is adamantine carrier, the ability to work of drill bit depends on the material of carcass 2 to a great extent, carcass will have suitable intensity, toughness, particularly hardness and wear resistance will adapt with boring nature of ground, for table diamond setting head, the carcass 2 of drill bit is generally selected hard metal, guarantee the impact resistance of carcass 2, also to consider simultaneously the cost of manufacture of carcass 2, when drilling through harder rock stratum, can select the carcass of copper material, when drilling through soft or during medium-hard rock stratum, can selecting the carcass of depressed place material.
The arrangement mode of diamond on drill bit is related to the cutting ability of drill bit and the chip removal ability of drill bit, in the present embodiment, diamond 3 is arranged along involute on the operative end surface of cutting body, in the cutting ability that guarantees drill bit, increase to the full extent the water supply capacity at the mouth of a river 5, improved the chip removal ability of drill bit.
Based on above-mentioned description, embodiment of the present utility model enumerates but is not limited to following ten kinds of diamies:
1) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass.
2) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are tungsten base material carcass.
3) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 20 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass.
4) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 20 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass.
5) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are copper base material carcass.
6) diamond be 80 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass.
7) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass.
8) diamond be 80 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 5, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass.
9) diamond be 80 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass.
10) diamond be 100 carats/, diamond on the operative end surface of cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are copper base material carcass.
Although the disclosed embodiment of the utility model as above, the embodiment that described content just adopts for the ease of understanding the utility model is not to limit the utility model.Technician under any the utility model in the technical field; under the prerequisite that does not break away from the disclosed spirit and scope of the utility model; can do any modification and variation in the details that reaches of implementing in form; but scope of patent protection of the present utility model still must be as the criterion with the scope that appending claims was defined.
Claims (9)
1. table hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: comprise steel body, carcass and diamond, described carcass comprises working lining and inoperative layer, the working lining of described carcass is fixedly connected with described steel body by the inoperative layer of described carcass, form cutting body on the working lining of described carcass, form cutting edge on the operative end surface of described cutting body, diamond is all shown to stud with in described cutting edge and carcass surface, between the described cutting body mouth of a river is set, the angle of described cutting edge is 10 °-30 °, and the number at the described mouth of a river is 3-10.
2. the table as claimed in claim 1 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: the angle of described cutting edge is 15 ° or 20 °.
3. the table as claimed in claim 1 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: the number at the described mouth of a river is 6.
4. the table as claimed in claim 3 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: the described mouth of a river is wedge shape, and is distributed between the described cutting body according to the circumference forms of radiation.
5. the table as claimed in claim 1 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: the internal diameter of described diamy is 25mm, external diameter is 33-35.8mm.
6. the table as claimed in claim 1 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: described carcass is hard metal material carcass.
7. the table as claimed in claim 6 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: described carcass is tungsten base material carcass or copper base material carcass.
8. the table as claimed in claim 1 hard rock side-wall coring drill bit that is inlaid with gold, it is characterized in that: described diamond is arranged along involute on the operative end surface of described cutting body.
9. the table as claimed in claim 1 hard rock side-wall coring drill bit that is inlaid with gold is characterized in that:
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 20 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 20 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are copper base material carcass, perhaps,
Described diamond be 80 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are copper base material carcass, perhaps,
Described diamond be 80 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 5, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 80 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 6, the internal diameter of drill bit is 25mm, external diameter is that 33mm, carcass are tungsten base material carcass, perhaps,
Described diamond be 100 carats/, diamond on the operative end surface of described cutting body along involute arrange, the angle of cutting edge is that 15 °, the number at the mouth of a river are 3, the internal diameter of drill bit is 25mm, external diameter is that 35.8mm, carcass are copper base material carcass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565768 CN202900048U (en) | 2012-10-30 | 2012-10-30 | Diamond-setting side-wall coring bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565768 CN202900048U (en) | 2012-10-30 | 2012-10-30 | Diamond-setting side-wall coring bit |
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| Publication Number | Publication Date |
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| CN202900048U true CN202900048U (en) | 2013-04-24 |
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| CN 201220565768 Expired - Lifetime CN202900048U (en) | 2012-10-30 | 2012-10-30 | Diamond-setting side-wall coring bit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117676A (en) * | 2014-07-24 | 2014-10-29 | 华侨大学 | Rare-earth modification tungsten-based bonding agent diamond grinding head, manufacturing method thereof and rare-earth modification tungsten-based bonding agent |
-
2012
- 2012-10-30 CN CN 201220565768 patent/CN202900048U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117676A (en) * | 2014-07-24 | 2014-10-29 | 华侨大学 | Rare-earth modification tungsten-based bonding agent diamond grinding head, manufacturing method thereof and rare-earth modification tungsten-based bonding agent |
| CN104117676B (en) * | 2014-07-24 | 2016-07-20 | 华侨大学 | Rare earth modified tungstenio binder diamond bistrique, its manufacture method and rare earth modified tungstenio bonding agent |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CHINA OILFIELD SERVICES Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CHINA OILFIELD SERVICES Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |