CN201258693Y - Diamond compact deflecting bit - Google Patents
Diamond compact deflecting bit Download PDFInfo
- Publication number
- CN201258693Y CN201258693Y CNU2008201193586U CN200820119358U CN201258693Y CN 201258693 Y CN201258693 Y CN 201258693Y CN U2008201193586 U CNU2008201193586 U CN U2008201193586U CN 200820119358 U CN200820119358 U CN 200820119358U CN 201258693 Y CN201258693 Y CN 201258693Y
- Authority
- CN
- China
- Prior art keywords
- diamond
- rock
- bit
- compact
- composite sheet
- 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 provides a diamond compact deflecting bit capable of cutting center rock at hole bottom effectively. A diamond matrix and a compact support body are connected with a bit steel body; the diamond matrix is embedded with the diamond; and the compact support body is embedded with the compact. The utility model is characterized in that the center of the diamond matrix is provided with a rectangle water hole; the circumference of the diamond matrix is evenly provided with five compact support bodies; and five round water holes are arranged among the compact support bodies. The diamond cuts and breaks the center rock; the compact cuts surrounding rock. Washing fluid flows to the bottom of the bit along the inner aperture of the bit and generates strong washing fluid pressure; rock debris is carried to move upwards along the surrounding interspace of a drill tool. The center rock at the hole bottom is broken effectively.
Description
Affiliated technical field
The utility model relates to a kind of diamond compact deflecting bit.
Background technology
At present, the directional drilling technology develops rapidly, is widely used in the exploitation and the special engineering project of mineral exploration, exploitation of mineral resources, coal bed gas, and deflecting bit is the important instrument of directional drilling cutting fractured rock, but, influence the drill bit guiding in the build-up process because the structural factor of deflecting bit own can't effectively be avoided center " dead point ", the center rock is failed effectively broken, it is broken to cause bottom rock to repeat, and bit wear is serious, and rate of penetration reduces, prolong the duration, improved drilling cost.
Summary of the invention
Can't effectively avoid the deficiency at center " dead point " for overcoming existing deflecting bit, the utility model provides a kind of diamond compact deflecting bit, this diamond compact not only has guidance quality and detritus function, and can solve center " dead point " problem, improve the efficient of broken centre rock.
The technical scheme that its technical problem that solves the utility model adopts is: in the drill bit bottom, diamond carcass and composite sheet supporter are connected on the drill steel body, diamond carcass center is provided with a rectangle hydrophthalmia, five composite sheet supporters of uniform arrangement around the diamond carcass, five circular hydrophthalmias are set between the composite sheet supporter, inlay composite sheet on five composite sheet supporters around the mosaic gold hard rock on the diamond carcass, diamond carcass, the diamond carcass is connected with the composite sheet supporter.When creeping into, the broken centre of centre diamond cutting rock, rock around the composite sheet cutting, flushing liquor penetrates from rectangle hydrophthalmia and circular hydrophthalmia, portable hole bed rock powder, the cooling drill bit reaches that to solve in the drilling process guidance quality bad, the center rock is difficult for broken, produces the purpose of difficult problems such as little rock core.
The beneficial effects of the utility model are, in the directional drilling process, and center rock at the bottom of effective broken hole, cleaning hole bed rock powder, simple in structure.
Description of drawings
Fig. 1 is a drill bit chart at the bottom of of the present utility model
Fig. 2 is the a-a ' sectional drawing of the utility model Fig. 1
Fig. 3 is the b-b ' sectional drawing of the utility model Fig. 1
1. diamond carcasses among the figure, 2. rectangle hydrophthalmia, 3. circular hydrophthalmia, 4. steel body, 5. composite sheet supporter, 6. composite sheet, 7. in screw thread, 8. drill bit internal orifice dimension.
The specific embodiment
In Fig. 1, diamond carcass (1) and composite sheet supporter (5) are connected on the steel body (4) for one, diamond carcass (1) is gone up the mosaic gold hard rock, diamond carcass (1) center is provided with a rectangle hydrophthalmia (2), article five, inlay composite sheet (6) on the composite sheet supporter (5), five circular hydrophthalmias (3) are set between the composite sheet supporter (5), and circular hydrophthalmia (3), rectangle hydrophthalmia (2) are communicated with drill bit internal orifice dimension (8).As Fig. 2, shown in Figure 3, bit body is connected with drilling rod by interior screw thread (7), has steel body (4) depression of circular hydrophthalmia (3), is lower than composite sheet supporter (5).Drilling tool reverses and drives the drill bit rotation, diamond cutting grinds the center rock, rock around composite sheet (6) cutting, flushing liquor flows to the drill bit bottom by drill steel body internal orifice dimension (8), during through bottom rectangle hydrophthalmia (2) and circular hydrophthalmia (3), produce stronger flushing pressure, carry on the rock dust and return, prevent the repetition fragmentation, the cooling drill bit.
Claims (3)
1, a kind of diamond compact deflecting bit, diamond carcass and composite sheet supporter are connected on the drill steel body, mosaic gold hard rock on the diamond carcass, inlay composite sheet on the composite sheet supporter, it is characterized in that: diamond carcass center is provided with a rectangle hydrophthalmia, five composite sheet supporters of uniform arrangement around the diamond carcass are provided with five circular hydrophthalmias between the composite sheet supporter.
2, according to the described diamond compact deflecting bit of claim 1, it is characterized in that: the rectangle hydrophthalmia is in diamond carcass center, and the diamond carcass is connected with the composite sheet supporter.
3, according to the described diamond compact deflecting bit of claim 1, it is characterized in that: diamond carcass and composite sheet supporter are an integral body, stud with diamond around the rectangle hydrophthalmia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201193586U CN201258693Y (en) | 2008-06-17 | 2008-06-17 | Diamond compact deflecting bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201193586U CN201258693Y (en) | 2008-06-17 | 2008-06-17 | Diamond compact deflecting bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201258693Y true CN201258693Y (en) | 2009-06-17 |
Family
ID=40772927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201193586U Expired - Fee Related CN201258693Y (en) | 2008-06-17 | 2008-06-17 | Diamond compact deflecting bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201258693Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643897A (en) * | 2013-12-06 | 2014-03-19 | 中国神华能源股份有限公司 | Deflecting bit |
| CN105745390A (en) * | 2013-11-20 | 2016-07-06 | 长年Tm公司 | Drill bits having flushing and systems for using same |
| US9903165B2 (en) | 2009-09-22 | 2018-02-27 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
| US10077609B2 (en) | 2015-03-05 | 2018-09-18 | Longyear Tm, Inc. | Drill bits having flushing |
-
2008
- 2008-06-17 CN CNU2008201193586U patent/CN201258693Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9903165B2 (en) | 2009-09-22 | 2018-02-27 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
| CN105745390A (en) * | 2013-11-20 | 2016-07-06 | 长年Tm公司 | Drill bits having flushing and systems for using same |
| CN103643897A (en) * | 2013-12-06 | 2014-03-19 | 中国神华能源股份有限公司 | Deflecting bit |
| CN103643897B (en) * | 2013-12-06 | 2016-03-16 | 中国神华能源股份有限公司 | Deflecting bit |
| US10077609B2 (en) | 2015-03-05 | 2018-09-18 | Longyear Tm, Inc. | Drill bits having flushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Hai Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20100617 |