CN103742078A - Comb-like fan-shaped block diamond-impregnated bit - Google Patents
Comb-like fan-shaped block diamond-impregnated bit Download PDFInfo
- Publication number
- CN103742078A CN103742078A CN201410009356.1A CN201410009356A CN103742078A CN 103742078 A CN103742078 A CN 103742078A CN 201410009356 A CN201410009356 A CN 201410009356A CN 103742078 A CN103742078 A CN 103742078A
- Authority
- CN
- China
- Prior art keywords
- secter pat
- cutting teeth
- fan
- bit
- diamond
- 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.)
- Granted
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a comb-like fan-shaped block diamond-impregnated bit. The comb-like fan-shaped block diamond-impregnated bit comprises a bit blank, wherein the bit blank is provided with a concentric ring groove consisting of a plurality of fan-shaped block; the fan-shaped blocks are provided with cutting teeth; each cutting tooth comprises a projecting portion and a depressed portion; the fan-shaped blocks comprise first and second fan-shaped blocks which are arranged alternatively; the depressed portions of the cutting teeth on the first fan-shaped blocks correspond to the projecting portions of the cutting teeth on the second fan-shaped blocks; the projecting portions of the cutting teeth on the first fan-shaped blocks are unequal to the projecting portions of the cutting teeth on the second fan-shaped blocks in heights. When the diamond bit is used for smashing rock, the rock is cut saw tooth forms by using the first fan-shaped blocks, and the projecting portions of the first fan-shaped blocks are cut off by using the second fan-shaped blocks. The cut rock debris is prevented from repeatedly abrading the working layers of the fan-shaped blocks, thereby discharging the rock debris more effectively, and increasing the mechanical drilling speed, bit footage and drilling technical 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 process application is extensive, and what in construction, generally adopt is diamond bit, and what carcass labial surface adopted mostly is concentric annular groove.Because the shape of concentric each secter pat working lip of annular groove diamond bit is all the same, in drilling process, in the groove that next secter pat working lip can form in upper secter pat cutting, carry out repetition fractured rock, and the part landwaste of upper secter pat cutting is trapped in bottom portion of groove, the diamond that can grind next secter pat working lining, this has just caused adamantine useless abrasion.
Summary of the invention
The object of the invention is to, for the problems referred to above, provide a kind of pectination secter pat diamond-impregnated bit, it can effectively be got rid of landwaste, improves rate of penetration, increases footage per bit, improve drilling technique index.The problems referred to above that exist to solve existing diamond bit.
The object of the invention is to be achieved through the following technical solutions:
A kind of pectination secter pat diamond-impregnated bit, it comprises bit matrix, the concentric annular groove being comprised of several secter pats is set on described bit matrix, on described secter pat, offer cutting teeth, described cutting teeth comprises projection and low concave portion, wherein, described secter pat comprises first, two secter pats, described first, two secter pat one after the others are arranged, the projection setting of cutting teeth on corresponding the second secter pat of the low concave portion of cutting teeth on described the first secter pat, and on described the first secter pat, on the projection of cutting teeth and the second secter pat, the projection height of cutting teeth is not etc., in the process of detritus, the first secter pat is by Rock Cutting engrail, the second secter pat machines away the projection of the first secter pat.
Especially, described cutting teeth is zigzag, and on described first and second secter pat, the facewidth of cutting teeth is identical, and on described the first secter pat, the projection of cutting teeth moves radially 1/2 of cutting teeth bottom width with respect to the projection of cutting teeth on the second secter pat.
Especially, the angle of described cutting teeth drift angle is within the scope of 70 °～90 °.
Especially, on the internal-and external diameter of described secter pat, stud with the gauge material that abrasion resistance is high, can avoid drill bit heel and toe wear.
Beneficial effect of the present invention is, compares described pectination secter pat diamond-impregnated bit tool and has the following advantages with existing:
1) in the process of detritus, the first secter pat is by Rock Cutting engrail, the second secter pat machines away rock cutting so successively by the projection of the first secter pat, guarantee that the landwaste cutting can not repeat to wear away secter pat working lining, thereby can effectively get rid of landwaste, raising rate of penetration, increase footage per bit, raising drilling technique index.
2) the low concave portion one after the other on the projection of described the first secter pat and the second secter pat, the rock that contributes to the precracking of broken previous secter pat projection, landwaste ratio is easier to be rinsed that liquid is drained and flushing liquor is often positioned at low-lying part at the bottom of hole, be conducive to cooling detritus instrument, guarantee that probing rules are all the time in " wet friction " state, bit wear is alleviated, and rate of penetration improves, and greatly reduces the energy consumption of broken unit volume rock.
3) the low concave portion one after the other on the projection of described the first secter pat and the second secter pat, is conducive to eliminate while creeping into being delivered to the vibration that on drill bit, oscillating load causes, increases stability, reduces hole deviation, thereby improves the technical-economic index of drilling process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pectination secter pat diamond-impregnated bit that provides of the specific embodiment of the invention 1;
Fig. 2 is the first secter pat of pectination secter pat diamond-impregnated bit and the schematic diagram that contacts of rock that the specific embodiment of the invention 1 provides;
Fig. 3 is the second secter pat of pectination secter pat diamond-impregnated bit and the schematic diagram that contacts of rock that the specific embodiment of the invention 1 provides;
Fig. 4 is that the first secter pat of the pectination secter pat diamond-impregnated bit that provides of the specific embodiment of the invention 1 contacts schematic diagram at the bottom of the hole after passing through with rock;
Fig. 5 be the second secter pat of the pectination secter pat diamond-impregnated bit that provides of the specific embodiment of the invention 1 contact with rock by time structural representation;
Fig. 6 is that first and second secter pat of the pectination secter pat diamond-impregnated bit that provides of the specific embodiment of the invention 1 contacts schematic diagram at the bottom of the hole after passing through with rock.
In figure:
1, bit matrix; 2, the mouth of a river; 3, the first secter pat; 4, the second secter pat; 5, cutting teeth projection; 6, the low concave portion of cutting teeth; 7, at the bottom of rock cutting hole; 8, projection at the bottom of hole; 9, low concave portion at the bottom of hole.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate technical scheme of the present invention.
Please refer to shown in Fig. 1 to Fig. 6, in the present embodiment, a kind of pectination secter pat diamond-impregnated bit comprises bit matrix 1, the concentric annular groove being comprised of several and secter pat is set on described bit matrix 1, and on described bit matrix 1, offer several mouths of a river 2, on described secter pat, offer jagged cutting teeth, and described secter pat comprises the first secter pat 3 and the second secter pat 4, described the first secter pat 3 and the second secter pat 4 one after the others are arranged, and the facewidth of described the first secter pat 3 and the cutting teeth of the second secter pat 4 is identical and include cutting teeth projection 5 and the low concave portion 6 of cutting teeth, cutting teeth projection 5 on described the first secter pat 3 moves radially 1/2 of cutting teeth bottom width with respect to the cutting teeth projection 6 on the second secter pat 4.Be cutting teeth projection 6 settings on corresponding the second secter pat 4 of the low concave portion 6 of cutting teeth on described the first secter pat 3, and the cutting teeth projection 5 on described the first secter pat 3 and the cutting teeth projection 5 on the second secter pat are highly not etc., described the first secter pat 3 forms at the bottom of jagged rock cutting hole as shown in Figure 47 by Rock Cutting, at the bottom of described rock cutting hole, 7 comprise at the bottom of hole low concave portion 9 at the bottom of projection 8 and hole, then the rock that 4 pairs of the first secter pats 3 of the second secter pat cut cuts, at the bottom of the hole of the first secter pat 3 being cut by its cutting teeth projection 5, projection 8 machines away.Rock cutting so successively, the path of the second secter pat 4 rock cuttings will change to some extent, can not repeat the broken landwaste being detained, and can make to become more smooth at the bottom of hole, is conducive to the timely discharge of landwaste, the detritus efficiency of raising drill bit.Guarantee that the landwaste cutting can not repeat to wear away secter pat working lining simultaneously, thereby can effectively get rid of landwaste, raising rate of penetration, increase footage per bit, raising drilling technique index.
The angle of the cutting teeth drift angle of described the first secter pat 3 and the second secter pat 4 is within the scope of 70 °～90 °, diamond discharges according to special angle, make this angle approach the corner angle of octahedral diamond crystal as far as possible, form vectorial hardness, can bring into play fully the effect of diamond intensity directionality, fractured rock better effects if, longer service life.
In drilling process, low concave portion 6 one after the others of the cutting teeth projection 5 of the first secter pat 3 and the second secter pat 4 and cutting teeth, the rock that contributes to the precracking of broken previous secter pat projection, landwaste ratio is easier to be rinsed that liquid is drained and flushing liquor is often positioned at low-lying part at the bottom of hole, be conducive to cooling detritus instrument, guarantee that probing rules are all the time in " wet friction " state, bit wear is alleviated, rate of penetration improves, and greatly reduces the energy consumption of broken unit volume rock.It is the stratum of 7～12 grades that described pectination secter pat impregnated with diamond can be used for creeping into drillability.When creeping into medium hardness rock stratum, there is comprehensive fractured rock process in hole bed rock stone, and die pressing type cutting element volumetric fracture process and abrasiveness shattering process, when creeping into competent bed, abrasiveness shattering process occurs at the bottom of hole.
On the internal-and external diameter of described the first secter pat 3 and the second secter pat 4, stud with the gauge material that abrasion resistance is high, can avoid drill bit heel and toe wear, guarantee all effective fractured rocks of each corner of drill bit working lining, protected the inside and outside footpath of drill bit, the self-sharpening of maintenance bit cutting tool.In drilling process, drill bit usually vibrates, because cutting teeth projection 5 and the low concave portion 6 of cutting teeth of the first secter pat 3 and the second secter pat 4 are interlaced, be conducive to eliminate and while creeping into, be delivered to the vibration that on drill bit, oscillating load causes, increase stability, reduce hole deviation, thereby improve the technical-economic index of drilling process.
Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention is not limited by above-described embodiment; without departing from the spirit and scope of the present invention, the present invention also has various variations and change, and these variations and change all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. a pectination secter pat diamond-impregnated bit, it comprises bit matrix, the concentric annular groove being comprised of several secter pats is set on described bit matrix, on described secter pat, offer cutting teeth, described cutting teeth comprises projection and low concave portion, it is characterized in that: described secter pat comprises first, two secter pats, described first, two secter pat one after the others are arranged, the projection setting of cutting teeth on corresponding the second secter pat of the low concave portion of cutting teeth on described the first secter pat, and on described the first secter pat, on the projection of cutting teeth and the second secter pat, the projection height of cutting teeth is not etc., in the process of detritus, the first secter pat is by Rock Cutting engrail, the second secter pat machines away the projection of the first secter pat.
2. a kind of pectination secter pat diamond-impregnated bit according to claim 1, it is characterized in that: described cutting teeth is zigzag, and the facewidth of cutting teeth is identical on described first and second secter pat, on described the first secter pat, the projection of cutting teeth moves radially 1/2 of cutting teeth bottom width with respect to the projection of cutting teeth on the second secter pat.
3. according to a kind of pectination secter pat diamond-impregnated bit described in claim 1 or 2 any one, it is characterized in that: the angle of described cutting teeth drift angle is within the scope of 70 °～90 °.
4. a kind of pectination secter pat diamond-impregnated bit according to claim 1, is characterized in that: on the internal-and external diameter of described secter pat, stud with the gauge material that abrasion resistance is high.
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 true CN103742078A (en) | 2014-04-23 |
| CN103742078B CN103742078B (en) | 2016-08-24 |
Family
ID=50499133
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)
| Country | Link |
|---|---|
| CN (1) | CN103742078B (en) |
Cited By (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 |
| CN113622827A (en) * | 2021-08-31 | 2021-11-09 | 中国地质大学（武汉） | Diamond bit for drilling into fractured hard rock stratum |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537538A (en) * | 1969-05-21 | 1970-11-03 | Christensen Diamond Prod Co | Impregnated diamond bit |
| EP0189212A1 (en) * | 1985-01-25 | 1986-07-30 | Eastman Christensen Company | An improved kerfing drag bit |
| US20070065244A1 (en) * | 2003-06-05 | 2007-03-22 | Kabushiki Kaisha Miyanaga | 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 |
| CN103437713A (en) * | 2013-08-07 | 2013-12-11 | 中国地质大学（武汉） | Self-sharpening type ring tooth impregnated diamond drill bit |
| 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 |
-
2014
- 2014-01-08 CN CN201410009356.1A patent/CN103742078B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537538A (en) * | 1969-05-21 | 1970-11-03 | Christensen Diamond Prod Co | Impregnated diamond bit |
| EP0189212A1 (en) * | 1985-01-25 | 1986-07-30 | Eastman Christensen Company | An improved kerfing drag bit |
| US20070065244A1 (en) * | 2003-06-05 | 2007-03-22 | Kabushiki Kaisha Miyanaga | 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 |
| CN103437713A (en) * | 2013-08-07 | 2013-12-11 | 中国地质大学（武汉） | Self-sharpening type ring tooth impregnated diamond drill bit |
| 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 |
Cited By (3)
| 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 |
| CN113622827A (en) * | 2021-08-31 | 2021-11-09 | 中国地质大学（武汉） | Diamond bit for drilling into fractured hard rock stratum |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742078B (en) | 2016-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392605A (en) | Compound bit formed by PDC (polycrystalline diamond compact) bits and rotary cutting bit | |
| CN203783468U (en) | Pectinate fan-shaped block diamond-impregnated bit | |
| CN102852462A (en) | Composite inserted tooth blade type diamond comprehensive drill bit | |
| CN103742078A (en) | Comb-like fan-shaped block diamond-impregnated bit | |
| CN103410447A (en) | Square drill bit of rotary drilling rig | |
| CN202900050U (en) | Diamond impregnated side-wall coring bit | |
| CN103758463A (en) | Diamond-impregnated bit of arc tooth | |
| CN204212699U (en) | Diamond-impregnated bit | |
| CN104295240B (en) | Novel diamond bit | |
| CN201598984U (en) | Pile-buried diamond bit for drilling hard and ultrahard rock stratum | |
| CN204436267U (en) | A kind of height zigzag interbedding of soft and hard rocks diamond-impregnated bit | |
| CN104499948A (en) | Double-cutting impregnated diamond segment | |
| CN103352660B (en) | Half-funnel-type nozzle double-layer water channel diamond-impregnated bit | |
| CN204024482U (en) | A kind of combined type PDC drill bit | |
| CN204663391U (en) | Single cone single-screw drill bit | |
| CN103437713B (en) | A kind of self-sharpening ring tooth diamond-impregnated bit | |
| CN213234940U (en) | Drill bit for directional drilling | |
| CN104131783B (en) | A kind of carcass lip face is the diamond head of wedge shape | |
| CN103184833A (en) | Diamond bit with large saw-teeth | |
| CN202300204U (en) | Diamond drill bit for rotary drilling rig | |
| CN202441266U (en) | A combined bit formed by a PDC bit and a rotary cut bit | |
| CN202165016U (en) | Diamond bit provided with composite matrix body | |
| CN105041221A (en) | Fast drilling rock bit | |
| RU157795U1 (en) | UNIVERSAL DRILL BIT | |
| CN206084801U (en) | Texture self -cooled emery wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of 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 |
|
| 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. |
|
| 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 |
|
| CP01 | Change in the name or title of a patent holder |