CN205297348U - Diamond -impregnated bit - Google Patents
Diamond -impregnated bit Download PDFInfo
- Publication number
- CN205297348U CN205297348U CN201521086498.4U CN201521086498U CN205297348U CN 205297348 U CN205297348 U CN 205297348U CN 201521086498 U CN201521086498 U CN 201521086498U CN 205297348 U CN205297348 U CN 205297348U
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- China
- Prior art keywords
- tooth
- work tooth
- diamond
- work
- bit
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Abstract
The utility model discloses a diamond -impregnated bit, fan -shaped work tooth is including alternative evenly distributed's owner work tooth and the work of assistance tooth, main work the tooth with be provided with the mouth of a river between the work of the assistance tooth, main work the tooth with the area of the work of assistance tooth is than being 3: 2~2: 1. This diamond -impregnated bit's fan -shaped work tooth by the owner of different performances, different specifications work tooth and the work of assistance tooth in turn the interval combination form, fine and close or silicify in the strong rock hard, drilling speed can reach 0.9~1.2mh, the life of single drill bit can reach 15~24m. When creeping into rock of the same kind, than the creeping into efficiency and can improve 3~4 times of ordinary drill bit, the life of drill bit can improve 2~2.5 times.
Description
Technical field
The utility model relates to powder metallurgical technology and drilling project field, is specifically related to a kind of geological prospecting and petroleum drilling diamond-impregnated bit.
Background technology
The geological prospecting of China and Science Drilling develop towards the deep of 4000m, are bored the rock kind met many, and lithology is complicated; Boring and meet in rock, hard and compact and the high rock of silication degree almost can run in each boring. When creeping into these type rock stratum, and normal diamond drill bit is when creeping into hard and compact or the high rock of silication degree, drill speed extremely low (about 0.3m/h), generally want within 3��4 hours, just can creep into 1.0 meters, maximum difficulty is exactly diamond exposure extreme difference or can not go out sword, the phenomenon even occurring not bore dynamicly completely, can not effective rock cutting, so that drilling efficiency is extremely low, construction time extends greatly, drilling cost significantly improves, problem in the urgent need to address in having become deep prospecting to drill, and good drill bit meets the needs crept into be badly in need of there is conformability. Solve and creep into difficult and that drill speed is extremely low problem, it is necessary to set about from tyre-e/or performance two main aspects of the structure of drill bit and drill bit.
Summary of the invention
The purpose of this utility model is for above-mentioned deficiency, it is provided that a kind of diamond-impregnated bit that can significantly improve drilling efficiency when creeping into and creep in the extremely low rock of timeliness.
The utility model solves the technical scheme that its technical problem adopts: provide a kind of diamond-impregnated bit, the weld layer of the fan-shaped work tooth, welding drilling bit steel body and the fan-shaped work tooth that comprise drilling bit steel body, are arranged on drilling bit steel body end and the mouth of a river, described sector work tooth comprises alternately equally distributed main work tooth and auxiliary work tooth, being provided with the mouth of a river between described main work tooth and described auxiliary work tooth, the area ratio of described main work tooth and described auxiliary work tooth is 3:2��2:1.
Further, the width at the described mouth of a river is 8��10mm.
Further, described main work tooth adopts 2��4, and accordingly, described auxiliary work tooth is 2��4.
The utility model is compared with prior art, there is following useful effect: the fan-shaped work tooth of the utility model diamond-impregnated bit is combined by the main work tooth of different performance, different size and auxiliary work tooth alternate intervals, in the rock that hard and compact or silication are strong, drill speed can reach 0.9��1.2m/h, and the work-ing life of single drill bit can reach 15��24m. When creeping into same rocks, can improving 3.0��4.0 times than the drilling efficiency of normal drill bit, the work-ing life of drill bit can improve 2.0��2.5 times.
Accompanying drawing explanation
The N-O-N direction, lip face, the end that Fig. 1 is the utility model diamond-impregnated bit arranges partial cutaway schematic;
Fig. 2 is N-O-N direction diamond-impregnated bit axial cross-sectional views in Fig. 1.
In all of the figs, identical Reference numeral is used for representing identical element or structure, wherein: main work tooth 1, auxiliary work tooth 2, the mouth of a river 3, weld layer 4, bit gauge protection material 5, drilling bit steel body 6.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated. Specific embodiment described herein is only in order to explain the utility model, and is not used in restriction the utility model. In addition, if below in described each enforcement mode of the utility model involved technology feature do not form conflict each other and just can mutually combine.
Shown in composition graphs 1, Fig. 2 for can significantly improve the diamond-impregnated bit of drilling efficiency when creeping into and the extremely low rock of timeliness creeps into, the weld layer 4 of the fan-shaped work tooth, welding drilling bit steel body 6 and the fan-shaped work tooth that comprise drilling bit steel body 6, are arranged on drilling bit steel body 6 end, the mouth of a river 3 and bit gauge protection material 5. Being of key of the present utility model: the fan-shaped work tooth of drill bit comprises alternately equally distributed 2��4 main work teeth 1 and corresponding 2��4 auxiliary work teeth 2, it is provided with the mouth of a river 3, and the area ratio of main work tooth 1 and auxiliary work tooth 2 is 3:2��2:1 between main work tooth 1 and auxiliary work tooth 2.
The tyre body hardness of main work tooth 1 is HRC10��12, and that diamond adopts is high-quality MBD35Diamond, MBD35Adamantine concentration is 55��65%, and its 50��60 order granularity accounts for 60%��70%, 60��70 order granularities and accounts for 30%��40%; And carcass moiety and mass percent are: the YG8 of 10%��12%, the Fe of 28%��36%, the Ni of 10%��13%, the Cu-Sn alloy of 45%��55%.
The tyre body hardness of auxiliary work tooth 2 is HRC6��7, and that diamond adopts is the SMD of inferior quality12Diamond, SMD12Diamond concentration is 50��60%, and its granularity is 50��60 orders; And the carcass moiety of auxiliary work tooth and mass percent are: the Fe of 40%��45%, the Ni of 6%��8%, the Cu of 18%��22%, the CuSn10 of 25%��35%.
The fan-shaped work tooth of diamond-impregnated bit of the present utility model is combined by main work tooth 1 and auxiliary work tooth 2 alternate intervals. The hardness of main work tooth is higher, and wear resistance is relatively strong, is the main part of breaking up rock; And the hardness of auxiliary work tooth is lower, wear resistance is poor, plays addi-tional crusher rock and promotes the effect of main work tooth breaking up rock.
Utilizing the tyre body hardness of auxiliary work tooth low low with wear resistance, creep into middle consumption the pressure of the drill less, diamond is easy to sword; The SMD adopted12Type diamond intensity is lower, and its corner angle are obvious and outstanding, is conducive to incision rock. The result of both actings in conjunction, it is possible to improve the effect of rock cutting. Its theoretical foundation is: in auxiliary work tooth, sharp diamond is easier to incision rock, and the rock dust particle cut is relatively thicker, can produce good abrasive effect for main work tooth, be conducive to the diamond exposure in main work tooth; The pressure that auxiliary work tooth consumes is less, and main work tooth obtains pressure must be increased, and drilling pressure increase contributes to main work tooth tyre body abrasion to accelerate, and the diamond exposure of main work tooth improves, and diamond incision rock effect improves, and drill speed must be improved.
In the present embodiment, the width at the mouth of a river 3 of drill bit is 8��10mm, 2��4mm is added than the mouth of a river of normal drill bit, belong to super style big water gap, the contact area being equivalent to bit operation tooth and hole bed rock stone reduces, when the equal the pressure of the drill provided, unit surface pressure on bit operation tooth is improved, and contributes to diamond exposure and diamond incision rock, is conducive to improving drill speed.
Adopting 4 main work teeth, 1,4 auxiliary work teeth, 2,8 mouths of a river 3 in the present embodiment, each mouth of a river 3 width is 9mm. For creeping into the extremely low rock of timeliness, the area ratio of main work tooth and auxiliary work tooth is 3:2, and the hardness of main work tooth carcass is HRC10, and the hardness of auxiliary work tooth carcass is HRC6; And for creeping into the slightly high rock of timeliness, the area ratio of main work tooth and auxiliary work tooth is 2:1, the hardness of main work tooth carcass is HRC12, and the hardness of auxiliary work tooth carcass is HRC7.
When the area ratio of main work tooth and auxiliary work tooth is 2:1, the tyre body hardness of main work tooth is HRC12, and its basic composition composition is: YG8 accounts for 12%, Fe accounts for 32%, Ni accounts for 10%, Cu-Sn10 accounts for 46%; And the tyre body hardness of auxiliary work tooth is HRC7, its basic composition composition is: Fe accounts for 40%, Ni and accounts for 8%, Cu and account for 18%, Cu-Sn10 and account for 35%.
When the area ratio of main work tooth and auxiliary work tooth is 3:2, the tyre body hardness of main work tooth is HRC10, and its basic composition composition is: YG8 accounts for 10%, Fe accounts for 28%, Ni accounts for 13%, Cu-Sn10 accounts for 55%; And the tyre body hardness of auxiliary work tooth is HRC6, its basic composition composition is: Fe accounts for 45%, Ni and accounts for 6%, Cu and account for 22%, Cu-Sn10 and account for 25%.
The real effect of boring of the utility model diamond-impregnated bit shows, in the rock that hard and compact or silication are strong, drill speed can reach 0.9��1.2m/h, and the work-ing life of single diamond-impregnated bit can reach 15��24m. When creeping into same rocks, can improving 3.0��4.0 times than the drilling efficiency of normal drill bit, the work-ing life of drill bit can improve 2.0��2.5 times, and the manufacturing cost of drill bit does not increase.
The foregoing is only better embodiment of the present utility model, not in order to limit the utility model, all any amendment, equivalent replacement and improvement etc. done within spirit of the present utility model and principle, are all included within protection domain of the present utility model.
Claims (3)
1. a diamond-impregnated bit, comprise drilling bit steel body (6), the fan-shaped work tooth of (6) end that is arranged on drilling bit steel body, the weld layer (4) of welding drilling bit steel body (6) and the fan-shaped tooth that works and the mouth of a river (3), it is characterized in that: described sector work tooth comprises alternately equally distributed main work tooth (1) and auxiliary work tooth (2), being provided with the mouth of a river (3) between described main work tooth (1) and described auxiliary work tooth (2), the area ratio of described main work tooth (1) and described auxiliary work tooth (2) is 3:2��2:1.
2. diamond-impregnated bit according to claim 1, it is characterised in that: the width of the described mouth of a river (3) is 8��10mm.
3. diamond-impregnated bit according to claim 1, it is characterised in that: described main work tooth (1) adopts 2��4, and accordingly, described auxiliary work tooth (2) is 2��4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521086498.4U CN205297348U (en) | 2015-12-23 | 2015-12-23 | Diamond -impregnated bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521086498.4U CN205297348U (en) | 2015-12-23 | 2015-12-23 | Diamond -impregnated bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297348U true CN205297348U (en) | 2016-06-08 |
Family
ID=56472374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521086498.4U Expired - Fee Related CN205297348U (en) | 2015-12-23 | 2015-12-23 | Diamond -impregnated bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351586A (en) * | 2016-11-15 | 2017-01-25 | 张金水 | Diamond inlaying drill bit |
-
2015
- 2015-12-23 CN CN201521086498.4U patent/CN205297348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351586A (en) * | 2016-11-15 | 2017-01-25 | 张金水 | Diamond inlaying drill bit |
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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: 20160608 Termination date: 20201223 |