CN103742078B - A kind of pectination secter pat diamond-impregnated bit - Google Patents
A kind of pectination secter pat diamond-impregnated bit Download PDFInfo
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- CN103742078B CN103742078B CN201410009356.1A CN201410009356A CN103742078B CN 103742078 B CN103742078 B CN 103742078B CN 201410009356 A CN201410009356 A CN 201410009356A CN 103742078 B CN103742078 B CN 103742078B
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- secter pat
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Abstract
The invention discloses a kind of pectination secter pat diamond-impregnated bit, it includes bit matrix, the concentric annular groove being made up of several secter pats is set on described bit matrix, cutting tooth is offered on described secter pat, described cutting tooth includes projection and depressed portions, wherein, described secter pat includes first, two secter pats, described first, two secter pat one after the others are arranged, the projection setting cutting tooth on corresponding second secter pat of depressed portions of tooth is cut on described first secter pat, and on described first secter pat, cut the projecting portion height cutting tooth on the projection of tooth and the second secter pat.Above-mentioned diamond bit is during detritus, and Rock Cutting is become zigzag by the first secter pat, and the projection of the first secter pat is machined away by the second secter pat.Ensure that the landwaste cut will not repeat to wear away secter pat working lining such that it is able to effectively get rid of landwaste, improve rate of penetration, increase footage per bit, raising drilling technique index.
Description
Technical field
The present invention relates to a kind of diamond bit, especially relate to a kind of pectination secter pat diamond-impregnated bit.
Background technology
At present, in domestic geological prospecting construction, diamond drilling technique is widely used, commonly used in construction
Be diamond bit, carcass labial surface uses concentric annular groove mostly.Due to concentric annular groove diamond bit
The shape of each secter pat working lip all as, in drilling process, next secter pat working lip meeting
Cut at a upper secter pat and in the groove formed, carry out repeating fractured rock, and upper secter pat cutting
Part landwaste is trapped in bottom portion of groove, can grind the diamond of next secter pat working lining, and this results in
The useless abrasion of diamond.
Summary of the invention
It is an object of the invention to, for the problems referred to above, it is provided that a kind of pectination secter pat diamond-impregnated bit,
It can effectively be got rid of landwaste, improve rate of penetration, increase footage per bit, raising drilling technique index.With
Solve the problems referred to above that existing diamond bit exists.
It is an object of the invention to be achieved through the following technical solutions:
A kind of pectination secter pat diamond-impregnated bit, it includes bit matrix, described bit matrix is arranged
The concentric annular groove being made up of several secter pats, described secter pat offers cutting tooth, described cutting tooth bag
Including projection and depressed portions, wherein, described secter pat includes first and second secter pat, described first,
Two secter pat one after the others are arranged, described first secter pat cuts corresponding second secter pat of depressed portions of tooth
The projection of upper cutting tooth is arranged, and cuts projection and second sector of tooth on described first secter pat
Cutting the projecting portion height of tooth on block, during detritus, Rock Cutting is become saw by the first secter pat
Dentation, the projection of the first secter pat is machined away by the second secter pat.
Especially, described cutting tooth is zigzag, and cuts the facewidth phase of tooth on described first and second secter pat
With, described first secter pat cuts the projection of tooth relative to the protuberance cutting tooth on the second secter pat
Divide and move radially the 1/2 of cutting tooth bottom width.
Especially, the angle of described cutting addendum angle is in the range of 70 °～90 °.
Especially, the internal-and external diameter of described secter pat studs with the gauge material that wearability is high, drill bit can be avoided
Heel and toe wear.
Beneficial effects of the present invention is, compared with existing described pectination secter pat diamond-impregnated bit have as
Lower advantage:
1) during detritus, Rock Cutting is become zigzag by the first secter pat, and the second secter pat is fanned first
The projection of shape block machines away rock cutting the most successively, it is ensured that the landwaste cut will not repeat abrasion
Secter pat working lining such that it is able to effectively get rid of landwaste, improve rate of penetration, increase footage per bit, raising
Drilling technique index.
2) the depressed portions one after the other on the projection of described first secter pat and the second secter pat, helps
In the rock of broken previous secter pat projection precrushing, landwaste be easier to be rinsed liquid drain and
Flushing liquor is commonly located at lower portions at the bottom of hole, is conducive to cooling detritus instrument, it is ensured that probing code is in all the time
" wet friction " state, makes bit wear alleviate, and rate of penetration improves, and greatly reduces broken unit bodies
The energy ezpenditure of long-pending rock.
3) the depressed portions one after the other on the projection of described first secter pat and the second secter pat, favorably
In time eliminating and creep into, it is delivered to the vibration that oscillating load on drill bit causes, increases stability, reduce hole deviation, from
And improve the technical-economic index of drilling process.
Accompanying drawing explanation
Fig. 1 is that the structure of the pectination secter pat diamond-impregnated bit that the specific embodiment of the invention 1 provides is shown
It is intended to；
Fig. 2 is the first fan of the pectination secter pat diamond-impregnated bit that the specific embodiment of the invention 1 provides
Shape block contacts schematic diagram with rock；
Fig. 3 is the second fan of the pectination secter pat diamond-impregnated bit that the specific embodiment of the invention 1 provides
Shape block contacts schematic diagram with rock；
Fig. 4 is the first fan of the pectination secter pat diamond-impregnated bit that the specific embodiment of the invention 1 provides
Shape block and rock contact pass through after hole at the bottom of schematic diagram；
Fig. 5 is the second fan of the pectination secter pat diamond-impregnated bit that the specific embodiment of the invention 1 provides
Shape block and rock contact by time structural representation；
Fig. 6 be the specific embodiment of the invention 1 provide pectination secter pat diamond-impregnated bit first,
Two secter pats and rock contact pass through after hole at the bottom of schematic diagram.
In figure:
1, bit matrix；2, the mouth of a river；3, the first secter pat；4, the second secter pat；5, cutting tooth protrudes
Part；6, cutting tooth depressed portions；7, at the bottom of rock cutting hole；8, projection at the bottom of hole；9, low at the bottom of hole
Concave portion.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
Refer to shown in Fig. 1 to Fig. 6, in the present embodiment, a kind of pectination secter pat diamond-impregnated bit bag
Include bit matrix 1, described bit matrix 1 arranges the concentric annular groove being made up of several and secter pat, and institute
State and on bit matrix 1, offer several mouths of a river 2, described secter pat offers jagged cutting tooth, and
Described secter pat includes the first secter pat 3 and the second secter pat 4, described first secter pat 3 and the second secter pat
4 one after the others are arranged, and described first secter pat 3 is identical and equal with the facewidth of the cutting tooth of the second secter pat 4
Including cutting tooth projection 5 and cutting tooth depressed portions 6, the cutting tooth on described first secter pat 3 protrudes
Part 5 moves radially the 1/2 of cutting tooth bottom width relative to the cutting tooth projection 6 on the second secter pat 4.
The cutting tooth on cutting corresponding second secter pat 4 of tooth depressed portions 6 on the most described first secter pat 3 protrudes
Part 6 is arranged, and the cutting tooth projection 5 and cutting on the second secter pat on described first secter pat 3
Cutting tooth projection 5 highly, Rock Cutting is formed saw as shown in Figure 4 by described first secter pat 3
At the bottom of the rock cutting hole of dentation 7, at the bottom of described rock cutting hole, 7 include low recess at the bottom of projection 8 at the bottom of hole and hole
Dividing 9, the rock that then the first secter pat 3 was cut by the second secter pat 4 cuts, and cuts tooth by it
Projection 8 at the bottom of the hole that first secter pat 3 is cut by projection 5 machines away.Rock cutting the most successively,
The path of the second secter pat 4 rock cutting will be varied from, and will not repeat the broken landwaste being detained,
And can make to become more smooth at the bottom of hole, beneficially the timely discharge of landwaste, improves the detritus efficiency of drill bit.
Ensure that the landwaste that cut will not repeat abrasion secter pat working lining simultaneously such that it is able to effectively get rid of landwaste,
Improve rate of penetration, increase footage per bit, raising drilling technique index.
The angle of the cutting addendum angle of described first secter pat 3 and the second secter pat 4 is 70 °～90 ° of scopes
In, diamond discharges according to specific angles, makes this angle as far as possible close to the corner angle of octahedral diamond crystal,
Forming vector hardness, it is possible to play the effect of diamond intensity directionality fully, fractured rock effect is more preferable,
Service life is longer.
In drilling process, the cutting tooth projection 5 of the first secter pat 3 and the second secter pat 4 and cutting tooth
Depressed portions 6 one after the other, contributes to the rock of broken previous secter pat projection precrushing, landwaste
It is easier to be rinsed liquid to drain and flushing liquor is commonly located at lower portions at the bottom of hole, is conducive to cooling detritus work
Tool, it is ensured that probing code is in " wet friction " state all the time, makes bit wear alleviate, and rate of penetration carries
Height, greatly reduces the energy ezpenditure of broken unit volume rock.The described impregnated diamond of pectination secter pat can
For creeping into the stratum that drillability is 7～12 grades.When creeping into medium hardness rock stratum, hole bed rock stone occurs to combine
Close fractured rock process, i.e. die pressing type cutting element volumetric fracture process and abrasiveness shattering process, creep into heavily fortified point
During hard formation, at the bottom of hole, there is abrasiveness shattering process.
Stud with, on the internal-and external diameter of described first secter pat 3 and the second secter pat 4, the gauge material that wearability is high, can
To avoid drill bit heel and toe wear, it is ensured that each corner of bit operation layer all can effective fractured rock, protect good boring
Inside and outside footpath, keeps the self-sharpening of bit cutting tool.In drilling process, drill bit it occur frequently that vibration,
Cutting tooth projection 5 and cutting tooth depressed portions 6 phase due to the first secter pat 3 and the second secter pat 4
The most staggered, be conducive to elimination when creeping into, to be delivered to the vibration that oscillating load on drill bit causes, increase stability,
Reduce hole deviation, thus improve the technical-economic index of drilling process.
Above example simply elaborates general principle and the characteristic of the present invention, and the present invention is not by above-described embodiment
Limiting, without departing from the spirit and scope of the present invention, the present invention also has various change and change, this
A little changes and change both fall within scope of the claimed invention.Claimed scope is by appended
Claims and equivalent thereof define.
Claims (3)
1. a pectination secter pat diamond-impregnated bit, it includes bit matrix, described bit matrix sets
Put the concentric annular groove being made up of several secter pats, described secter pat offers cutting tooth, described cutting tooth
Including projection and depressed portions, it is characterised in that: described secter pat includes first and second secter pat, institute
State first and second secter pat one after the other to arrange, described first secter pat cuts the depressed portions correspondence the of tooth
The projection cutting tooth on two secter pats is arranged, and cut on described first secter pat the projection of tooth with
Cutting the projecting portion height of tooth on second secter pat, during detritus, the first secter pat is by rock
Cutting into zigzag, the projection of the first secter pat is machined away by the second secter pat, and described cutting tooth is saw
The facewidth cutting tooth on dentation, and described first and second secter pat is identical, and described first secter pat cuts tooth
Projection relative to the projection cutting tooth on the second secter pat move radially cutting tooth bottom width 1/2.
A kind of pectination secter pat diamond-impregnated bit the most according to claim 1, it is characterised in that:
The angle of described cutting addendum angle is in the range of 70 °～90 °.
A kind of pectination secter pat diamond-impregnated bit the most according to claim 1, it is characterised in that:
The gauge material that wearability is high is studded with on the internal-and external diameter of described secter pat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009356.1A CN103742078B (en) | 2014-01-08 | 2014-01-08 | A kind of pectination secter pat diamond-impregnated bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009356.1A CN103742078B (en) | 2014-01-08 | 2014-01-08 | A kind of pectination secter pat diamond-impregnated bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103742078A CN103742078A (en) | 2014-04-23 |
| CN103742078B true CN103742078B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410009356.1A Active CN103742078B (en) | 2014-01-08 | 2014-01-08 | A kind of pectination secter pat diamond-impregnated bit |
Country Status (1)
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| CN (1) | CN103742078B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530455A (en) * | 2021-08-31 | 2021-10-22 | 中国地质大学（武汉） | Diamond bit combining concentric circular teeth and spiral teeth |
| CN113622827B (en) * | 2021-08-31 | 2022-05-17 | 中国地质大学（武汉） | Diamond bit for drilling into fractured hard rock stratum |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203783468U (en) * | 2014-01-08 | 2014-08-20 | 无锡钻探工具厂有限公司 | Pectinate fan-shaped block diamond-impregnated bit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537538A (en) * | 1969-05-21 | 1970-11-03 | Christensen Diamond Prod Co | Impregnated diamond bit |
| CN86100885A (en) * | 1985-01-25 | 1986-08-20 | 诺顿-克里斯坦森公司 | A kind of improved groove chipping type bit |
| TWI263552B (en) * | 2003-06-05 | 2006-10-11 | Miyanaga Kk | Core cutter |
| US7228922B1 (en) * | 2004-06-08 | 2007-06-12 | Devall Donald L | Drill bit |
| CN201963235U (en) * | 2011-03-14 | 2011-09-07 | 唐山市金石超硬材料有限公司 | Diamond core bit |
| CN202900050U (en) * | 2012-10-30 | 2013-04-24 | 中国海洋石油总公司 | Diamond impregnated side-wall coring bit |
| CN203223178U (en) * | 2013-03-18 | 2013-10-02 | 阜新市金力超硬工具有限公司 | Mud rock sharp-tooth concave drag type bit |
| CN103437713B (en) * | 2013-08-07 | 2015-11-04 | 中国地质大学（武汉） | A kind of self-sharpening ring tooth diamond-impregnated bit |
-
2014
- 2014-01-08 CN CN201410009356.1A patent/CN103742078B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203783468U (en) * | 2014-01-08 | 2014-08-20 | 无锡钻探工具厂有限公司 | Pectinate fan-shaped block diamond-impregnated bit |
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| Publication number | Publication date |
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| CN103742078A (en) | 2014-04-23 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Applicant after: Wuxi Drilling Tools Factory Co., Ltd. Address before: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Applicant before: Wuxi Drilling Tools Factory |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: WUXI DRILLING TOOLS FACTORY OF MINISTRY OF GEOLOGY AND MINERAL RESOURCES TO: WUXI DRILLING TOOLS FACTORY CO., LTD. |
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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 |
Address after: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Patentee after: Zhongdizhuang (Wuxi) drilling tools Co., Ltd Address before: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Patentee before: WUXI DRILLING TOOLS FACTORY |
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| CP01 | Change in the name or title of a patent holder |