CN216008403U - Combined drill bit for complex stratum - Google Patents
Combined drill bit for complex stratum Download PDFInfo
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- CN216008403U CN216008403U CN202122559421.6U CN202122559421U CN216008403U CN 216008403 U CN216008403 U CN 216008403U CN 202122559421 U CN202122559421 U CN 202122559421U CN 216008403 U CN216008403 U CN 216008403U
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- drill bit
- cutter
- complex
- back chipping
- pterygoid lamina
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Abstract
The utility model provides a combination drill bit for complicated stratum, including the drill bit and set up a plurality of pterygoid lamina on the drill bit driving face, scrape ditch sword and lag back chipping cutting knife in advance, scrape in advance ditch sword and lag back chipping cutting knife symmetry in turn and set up on the pterygoid lamina. The utility model discloses a set up on each pterygoid lamina of drill bit and scrape ditch sword and lag back chipping cutting knife in advance, the compound cutting cloth sword mode not only can reduce the quantity of cutter, improves crushing efficiency, can effectively prevent the wearing and tearing of cutter body and pterygoid lamina moreover to accelerate and creep into efficiency.
Description
Technical Field
The utility model relates to a creep into construction technical field, in particular to combination drill bit for complicated stratum.
Background
The drilling method construction is a common construction means for the development of large-scale coal bases, the cutter body and wing plates are frequently abraded in the drilling construction process, the cutter body can fall off due to serious abrasion, the cutter body falls off and needs to be lifted by a drill bit for maintenance, the operation time is increased, and the drilling efficiency is influenced; simultaneously, the cutter body acquisition cost is higher, and the cutter body drops and has increased construction cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model aims at providing a combination drill bit for complicated stratum through set up on each pterygoid lamina of drill bit and scrape ditch sword and lag back chipping cutting knife in advance, the quantity of cutter not only can be reduced to compound cutting cloth sword mode, improves crushing efficiency, can effectively prevent the wearing and tearing of cutter body and pterygoid lamina moreover to accelerate and creep into efficiency.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the combined drill bit for the complex stratum comprises a drill bit, a plurality of wing plates arranged on a driving face of the drill bit, an advanced groove scraping cutter and a delayed back chipping cutter, wherein the advanced groove scraping cutter and the delayed back chipping cutter are alternately and symmetrically arranged on the wing plates.
Furthermore, the wing plates are uniformly distributed on the tunneling surface of the drill bit.
Furthermore, the middle of the driving surface of the drill bit is provided with a suction port for discharging slag.
Further, the advanced groove scraping knife is a diamond alloy scraper which is arranged in advance, and the advance amount is 27.5 mm.
Furthermore, the cutting edge of the diamond alloy scraper adopts a tower-shaped structure.
Furthermore, the lag back chipping cutter is a diamond alloy sheet directly embedded on the bottom of a wing plate of the drill bit.
Has the advantages that: the utility model discloses a set up on each pterygoid lamina of drill bit and scrape ditch sword and lag back chipping cutting knife in advance, the compound cutting cloth sword mode not only can reduce the quantity of cutter, improves crushing efficiency, can effectively prevent the wearing and tearing of cutter body and pterygoid lamina moreover to accelerate and creep into efficiency.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic front structural view of a composite drill bit for complex formation according to an embodiment of the present invention;
fig. 2 is a schematic side view of a composite drill bit for complex formations according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Referring to FIGS. 1-2: a combined drill bit for complex strata comprises a drill bit 1, a plurality of wing plates 2 arranged on the driving surface of the drill bit 1, an advanced gullet scraping knife 3 and a lagging back chipping cutting knife 4, wherein the advanced gullet scraping knife 3 and the lagging back chipping cutting knife 4 are alternately and symmetrically arranged on the wing plates 2.
This embodiment is through setting up leading ditch sword and the back chipping cutting knife of scraping on each pterygoid lamina of drill bit, and compound cutting cloth sword mode not only can reduce the quantity of cutter, improves crushing efficiency, can effectively prevent the wearing and tearing of cutter body and pterygoid lamina moreover to accelerate and creep into efficiency.
In a specific example, the six wing plates 2 are uniformly distributed on the heading face of the drill bit 1.
In a specific example, a suction port 5 is arranged in the middle of the driving surface of the drill bit 1 for discharging slag.
The rubble, the residue that the leading ditch sword of scraping of this embodiment and the back chipping cutting sword produced all discharge through the absorption mouth in the tunnelling process to improve tunnelling efficiency.
In a specific example, the leading groove blade 3 is a diamond alloy blade with a leading arrangement of 27.5 mm.
The diamond alloy scraper of this embodiment adopts and arranges in advance, and the diamond alloy scraper is higher than 27.5mm for the back chipping cutting knife promptly, scrapes the ditch sword as the advance, can destroy rock mass wholeness in advance, reduces rock mass intensity.
In a specific example, the cutting edge of the diamond alloy scraper adopts a tower-type structure.
The blade of the tower structure of the embodiment can improve the tunneling stability and efficiency.
In a specific example, the hysteretic back gouging cutter 4 is a diamond alloy blade directly embedded on the bottom of the drill wing.
The diamond alloy piece of this embodiment, as hysteresis back chipping cutting knife, multiplicable stability prevents the wearing and tearing of cutter body, pterygoid lamina.
The working principle of the embodiment is as follows: the advanced groove scraping knives and the lagging back chipping cutters are alternately, uniformly and symmetrically arranged, and the integrity of a rock body is damaged through the advanced groove scraping knives in drilling construction, so that the overall strength of the rock body is reduced; can clear up this layer of surplus rock mass comprehensively through the back chipping cutting knife, prevent that the rock mass that has left over from causing wearing and tearing to cutter body and pterygoid lamina, can effectively avoid droing of cutter body.
In conclusion, in the drilling method construction, the cutter body purchasing cost is high, the combined drill bit for the complex stratum can effectively prevent the cutter body and the wing plate from being worn, and the cutter body is prevented from falling off, so that the drilling efficiency is improved, the construction cost is reduced, good economic benefits and social benefits are achieved, and the combined drill bit can be popularized and implemented in the drilling method construction under similar conditions.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The combined drill bit for the complex stratum is characterized by comprising a drill bit (1), a plurality of wing plates (2) arranged on the tunneling surface of the drill bit (1), a leading groove scraping cutter (3) and a lagging back chipping cutter (4), wherein the leading groove scraping cutter (3) and the lagging back chipping cutter (4) are alternately and symmetrically arranged on the wing plates (2).
2. A composite drill bit for complex ground layers according to claim 1, characterized in that the wing plates (2) are six pieces evenly distributed on the heading face of the drill bit (1).
3. The combination drill bit for complex stratum according to claim 1, characterized in that the middle of the driving surface of the drill bit (1) is provided with a suction port (5) for slag discharge.
4. A composite drill bit for complex ground formations according to claim 1, characterized in that the leading furrow blade (3) is a diamond alloy blade with a leading arrangement of 27.5 mm.
5. The composite drill bit for complex formations according to claim 4, characterized in that the cutting edge of the diamond alloy blade adopts a tower-type structure.
6. Combination drill bit for complex ground formations according to claim 1, characterized in that the hysteretic back gouging cutter (4) is a diamond alloy blade directly inlaid on the bottom of the drill wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559421.6U CN216008403U (en) | 2021-10-22 | 2021-10-22 | Combined drill bit for complex stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559421.6U CN216008403U (en) | 2021-10-22 | 2021-10-22 | Combined drill bit for complex stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008403U true CN216008403U (en) | 2022-03-11 |
Family
ID=80587107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122559421.6U Active CN216008403U (en) | 2021-10-22 | 2021-10-22 | Combined drill bit for complex stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216008403U (en) |
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2021
- 2021-10-22 CN CN202122559421.6U patent/CN216008403U/en active Active
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