CN203783468U - Pectinate fan-shaped block diamond-impregnated bit - Google Patents
Pectinate fan-shaped block diamond-impregnated bit Download PDFInfo
- Publication number
- CN203783468U CN203783468U CN201420011958.6U CN201420011958U CN203783468U CN 203783468 U CN203783468 U CN 203783468U CN 201420011958 U CN201420011958 U CN 201420011958U CN 203783468 U CN203783468 U CN 203783468U
- Authority
- CN
- China
- Prior art keywords
- secter pat
- fan
- cutting teeth
- shaped block
- projection
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a pectinate fan-shaped block diamond-impregnated bit, which comprises a bit matrix, wherein the bit matrix is provided with a concentric ring slot consisting of a plurality of fan-shaped blocks; each fan-shaped block is provided with a cutting tooth; the cutting tooth comprises a convex part and a concave part; the fan-shaped blocks comprise a first fan-shaped block and a second fan-shaped block, wherein the first fan-shaped block and the second fan-shaped block are alternately arranged; the concave part of the cutting tooth on the first fan-shaped block is arranged correspondingly to the convex part of the cutting tooth on the second fan-shaped block; the convex part of the cutting tooth on the first fan-shaped block is not as high as the convex part of the cutting tooth on the second fan-shaped block. According to the diamond-impregnated bit, a rock is cut into the sawtooth shape by the first fan-shaped block in the rock breaking process, the convex part of the first fan-shaped block is cut off by the second fan-shaped block, and therefore cut rock debris can be prevented from repeatedly abrading the working layers of the fan-shaped blocks so as to effectively remove the rock debris, improve the mechanical drilling speed, increase the bit drilling depth and improve the drilling technical index.
Description
Technical field
The utility model relates to a kind of diamond bit, especially relates 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.
Utility model content
The purpose of this utility model is, for the problems referred to above, provides a kind of pectination secter pat diamond-impregnated bit, and 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 purpose of this utility model 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.
The beneficial effects of the utility model are, compare described pectination secter pat diamond-impregnated bit tool and have 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 utility model specific embodiment 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 utility model specific embodiment 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 utility model specific embodiment 1 provides;
Fig. 4 is that the first secter pat of the pectination secter pat diamond-impregnated bit that provides of the utility model specific embodiment 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 utility model specific embodiment 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 utility model specific embodiment 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 the technical solution of the utility model.
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 utility model and characteristic; the utility model is not limited by above-described embodiment; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall within the scope of claimed the utility model.The claimed scope of the utility model 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 |
|---|---|---|---|
| CN201420011958.6U CN203783468U (en) | 2014-01-08 | 2014-01-08 | Pectinate fan-shaped block diamond-impregnated bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011958.6U CN203783468U (en) | 2014-01-08 | 2014-01-08 | Pectinate fan-shaped block diamond-impregnated bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783468U true CN203783468U (en) | 2014-08-20 |
Family
ID=51319668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011958.6U Withdrawn - After Issue CN203783468U (en) | 2014-01-08 | 2014-01-08 | Pectinate fan-shaped block diamond-impregnated bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742078A (en) * | 2014-01-08 | 2014-04-23 | 地质矿产部无锡钻探工具厂 | Comb-like fan-shaped block diamond-impregnated bit |
| CN110130836A (en) * | 2019-06-06 | 2019-08-16 | 江苏鸿基水源科技股份有限公司 | A kind of cast-in-place soil cement composite foundation duplex tube helix drill bit and its construction method |
-
2014
- 2014-01-08 CN CN201420011958.6U patent/CN203783468U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742078A (en) * | 2014-01-08 | 2014-04-23 | 地质矿产部无锡钻探工具厂 | Comb-like fan-shaped block diamond-impregnated bit |
| CN103742078B (en) * | 2014-01-08 | 2016-08-24 | 无锡钻探工具厂有限公司 | A kind of pectination secter pat diamond-impregnated bit |
| CN110130836A (en) * | 2019-06-06 | 2019-08-16 | 江苏鸿基水源科技股份有限公司 | A kind of cast-in-place soil cement composite foundation duplex tube helix drill bit and its construction method |
| CN110130836B (en) * | 2019-06-06 | 2024-02-09 | 江苏鸿基水源科技股份有限公司 | Double-tube spiral drill bit for cast-in-situ cement soil composite foundation and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |