CN212054509U - Hard alloy compression-resistant impact drill bit - Google Patents
Hard alloy compression-resistant impact drill bit Download PDFInfo
- Publication number
- CN212054509U CN212054509U CN202020572678.8U CN202020572678U CN212054509U CN 212054509 U CN212054509 U CN 212054509U CN 202020572678 U CN202020572678 U CN 202020572678U CN 212054509 U CN212054509 U CN 212054509U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- chip removal
- arc groove
- connecting portion
- side blade
- 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
Links
- 230000006835 compression Effects 0.000 title claims abstract description 25
- 238000007906 compression Methods 0.000 title claims abstract description 25
- 239000000956 alloy Substances 0.000 title claims abstract description 24
- 229910045601 alloy Inorganic materials 0.000 title abstract description 20
- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 238000009527 percussion Methods 0.000 claims abstract description 5
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 21
- 239000000843 powder Substances 0.000 abstract description 6
- 239000004575 stone Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
The utility model discloses a carbide resistance to compression percussion drill bit, including drill bit portion, connecting portion and rubber sleeve, the drill bit portion lateral wall is equipped with five groups of side blades respectively, and is adjacent contained angle between the side blade is 72, the side blade is "7" font structure, side blade head terminal surface is equipped with the angle of inclination, side blade lateral surface is equipped with three button, side blade opposite side terminal surface is equipped with six mutual parallel arrangement's chip removal arc groove, the diameter of chip removal arc groove increases from top to bottom in proper order. The utility model has the advantages that the drilling speed of the drill bit is improved by arranging the five groups of side blades on the drill bit part and performing high-speed rotary cutting on the five groups of side blades to drill; the rubber sleeve is arranged, so that the stress generated by the drill bit can be eliminated, and the compression impact resistance of the hard alloy drill bit is effectively improved; the spherical teeth arranged at the side ends of the side blades can improve the crushing effect of the side blades on rocks and reduce the cutting impact stress on the drill bit; the chip removal arc groove arranged at the other side end of the side edge can improve the discharge efficiency of the crushed stone powder.
Description
Technical Field
The utility model relates to a drill bit field especially relates to a carbide resistance to compression percussion drill bit.
Background
The hard alloy is an alloy material made of hard compound of refractory metal and binding metal by powder metallurgy process. The hard alloy has the excellent performances of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, and can be made into a drill bit for drilling. The hard alloy drill bit is used for breaking and drilling holes by means of bit pressure and impact load generated by rotation of the hard alloy drill bit, is commonly used in the field of core drilling, and is a drill bit with high cutting speed and high chip removal efficiency.
In the prior art, when the hard alloy drill bit drills a hard stratum, the surface of the hard alloy drill bit is easy to wear under high drilling pressure due to poor compression resistance and impact resistance of the hard alloy drill bit on the market, so that the difficulty and the cost of drilling are greatly increased.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the hard alloy compression-resistant impact drill bit has the advantages of high drilling speed, high chip removal efficiency, easiness in manufacturing and long service life.
The technical scheme of the utility model as follows: the utility model provides a carbide resistance to compression percussion drill bit, includes drill bit portion, connecting portion and rubber sleeve, drill bit portion bottom is connected with the connecting portion top, the rubber sleeve is located between drill bit portion and the connecting portion, the drill bit portion top is hemispherical structure, drill bit portion lateral wall is equipped with five groups of side blades respectively, and is adjacent contained angle between the side blade is 72, the side blade is "7" font structure, side blade head terminal surface is equipped with the angle of inclination, side blade lateral surface is equipped with three button, side blade opposite side terminal surface is equipped with six mutual parallel arrangement's chip removal arc groove, the chip removal arc groove is half column groove form structure, the diameter of chip removal arc groove increases from top to bottom in proper order, connecting portion are the column structure, be equipped with the external screw thread structure on the connecting portion, the diameter of connecting portion from top to bottom reduces gradually.
By adopting the technical scheme, in the hard alloy compression-resistant impact drill, the inclination angle of the end surface of the side cutting edge head is 5-10 degrees.
By adopting the technical scheme, in the hard alloy compression-resistant impact drill bit, the drill bit part and the connecting part are of an integrally formed structure.
By adopting the technical scheme, the hard alloy compression-resistant impact drill bit is characterized in that the connecting part is internally provided with a through hole.
By adopting the technical scheme, in the hard alloy compression-resistant impact drill bit, the drill bit part is made of hard alloy materials.
By adopting the technical scheme, in the hard alloy compression-resistant impact drill bit, the rubber sleeve is made of polyurethane rubber.
Adopt above-mentioned each technical scheme, carbide resistance to compression impact drill in, the maximum width of side sword is 18mm, the length of chip removal arc groove is 10mm, the length of side sword is 75 mm.
By adopting the technical proposal, the utility model arranges five groups of side blades on the drill bit part, and under high-speed drilling, the five groups of side blades rapidly rotate and cut to drill, thereby greatly improving the drilling speed of the drill bit; the rubber sleeve is arranged between the drill bit part and the connecting part, so that the stress generated by the drill bit can be eliminated, and the compression impact resistance of the hard alloy drill bit is effectively improved; the spherical teeth arranged at the side ends of the side blades can improve the crushing effect of the side blades on rocks and reduce the cutting impact stress on the drill bit; the chip removal arc groove arranged at the other side end of the side edge can improve the discharge efficiency of the crushed stone powder; the whole drilling speed is fast, the chip removal efficiency is high, the manufacturing is easy, the service life is long, and the drilling tool can be popularized and used.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of another overall structure of the present invention;
fig. 3 is a side view of the present invention;
fig. 4 is a top view of the present invention;
fig. 5 is a partially enlarged view of the area a in fig. 4.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 5, a hard alloy compression-resistant percussion drill bit comprises a drill bit portion 1, a connecting portion 2 and a rubber sleeve 3, wherein the bottom of the drill bit portion 1 is connected with the top of the connecting portion 2, the rubber sleeve 3 is arranged between the drill bit portion 1 and the connecting portion 2, the top end of the drill bit portion 1 is of a hemispherical structure, five groups of side blades 10 are respectively arranged on the side wall of the drill bit portion 1, the included angle between the adjacent side blades 10 is 72 degrees, each side blade 10 is of a 7-shaped structure, the end surface of the head portion of each side blade 10 is provided with an inclination angle alpha, one side end surface of each side blade 10 is provided with three spherical teeth 101, the other side end surface of each side blade 10 is provided with six chip removal arc grooves 102 which are arranged in parallel, each chip removal arc groove 102 is of a semi-cylindrical groove structure, the diameters of the chip removal arc grooves 102 are sequentially increased from top to bottom, the diameter of the connecting part 2 is gradually reduced from top to bottom.
As shown in fig. 2 and 4, in the present embodiment, the drill bit portion 1 can crush the formation to form a borehole; the connection part 2 can be adapted to be connected to a drilling machine. The five groups of side edges 10 arranged on the side wall of the drill bit part 1 can rotate rapidly under high-speed drilling, and each group of side edges 10 can drill the stratum, so that the drilling efficiency of the drill bit is greatly improved. The included angle between the adjacent side edges 10 is 72 degrees, and the included angle between each side edge 10 is equal, so that the size of the drilled hole is more uniform. The inclined angle alpha arranged on the end surface of the side edge 10 can improve the centering function of the drill bit, so that the side edge 10 of the drill bit 1 can more easily drill into the stratum. The three spherical teeth 101 provided on one end surface of the side blade 10 can improve the rock crushing effect of the side blade 10 and reduce the cutting impact stress on the drill. The chip removal arc groove 102 arranged on the end surface of the other side of the side edge 10 can improve the discharge efficiency of the drilled broken stone powder, and the broken stone powder can be removed from the drilled hole in the chip removal arc groove 102 in the drilling process; the diameter of the chip discharge arc groove 102 is increased from top to bottom in sequence, and the arrangement is such that the drill bit is facilitated to discharge broken stone powder while the drilling strength of the side edge 10 is ensured. The external thread structure 20 that sets up on connecting portion 2, user's accessible threaded connection's mode installation drill bit, the installation connected mode is simple and convenient. The rubber sleeve 3 arranged between the drill bit part 1 and the connecting part 2 can eliminate the stress generated in the drilling process of the drill bit, and effectively improves the compression impact resistance of the hard alloy drill bit.
As shown in fig. 4 and 5, the inclination angle α of the end surface of the head of the side cutting edge 10 is preferably 5 to 10 °. In this embodiment, the inclination angle α of the head end surface of the side blade 10 is 7 °, and the inclination angle α of the head end surface of the side blade 10 makes it easier for the side blade 10 of the drill to cut the formation.
As shown in fig. 2, a through hole 200 is preferably provided in the connecting portion 2. In this embodiment, the through hole 200 formed in the connecting portion 2 can reduce the volume of the connecting portion 2, thereby achieving the purpose of reducing the weight of the drill.
As shown in fig. 1, the bit part 1 and the connecting part 2 are preferably formed integrally. In this embodiment, the drill portion 1 and the connecting portion 2 are integrally formed, so that the structural strength of the drill can be improved.
As shown in fig. 1, the rubber sleeve 3 is preferably made of urethane rubber. In this embodiment, the polyurethane rubber has good compressive strength and impact resistance, and the rubber sleeve 3 made of the polyurethane rubber is arranged between the drill bit portion 1 and the connecting portion 2, so that the stress generated by the drill bit can be effectively absorbed.
Preferably, the drill bit part 1 is made of hard alloy material.
Preferably, the maximum width of the side edge 10 is 18mm, the length of the chip discharging arc groove 102 is 10mm, and the length of the side edge 10 is 75 mm.
By adopting the technical proposal, the utility model arranges five groups of side blades on the drill bit part, and under high-speed drilling, the five groups of side blades rapidly rotate and cut to drill, thereby greatly improving the drilling speed of the drill bit; the rubber sleeve is arranged between the drill bit part and the connecting part, so that the stress generated by the drill bit can be eliminated, and the compression impact resistance of the hard alloy drill bit is effectively improved; the spherical teeth arranged at the side ends of the side blades can improve the crushing effect of the side blades on rocks and reduce the cutting impact stress on the drill bit; the chip removal arc groove arranged at the other side end of the side edge can improve the discharge efficiency of the crushed stone powder; the whole drilling speed is fast, the chip removal efficiency is high, the manufacturing is easy, the service life is long, and the drilling tool can be popularized and used.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a carbide resistance to compression percussion bit which characterized in that: including drill bit portion, connecting portion and rubber sleeve, drill bit portion bottom is connected with the connecting portion top, the rubber sleeve is located between drill bit portion and the connecting portion, the drill bit portion top is hemispherical structure, drill bit portion lateral wall is equipped with five groups side blades respectively, and is adjacent contained angle between the side blade is 72, the side blade is "7" font structure, side blade head terminal surface is equipped with the angle of inclination, side blade side end face is equipped with three ball tooth, side blade opposite side terminal surface is equipped with six mutual parallel arrangement's chip removal arc groove, the chip removal arc groove is half column groove form structure, the diameter of chip removal arc groove from top to bottom increases in proper order, connecting portion are column structure, be equipped with the external screw thread structure on the connecting portion, the diameter of connecting portion from top to bottom reduces gradually.
2. The cemented carbide compression impact resistant drill bit as set forth in claim 1, wherein: the inclination angle of the end face of the head of the side cutting edge is 5-10 degrees.
3. The cemented carbide compression impact resistant drill bit as set forth in claim 1, wherein: the drill bit part and the connecting part are of an integrally formed structure.
4. The cemented carbide compression impact resistant drill bit as set forth in claim 1, wherein: a through hole is formed in the connecting part.
5. The cemented carbide compression impact resistant drill bit as set forth in any one of claims 1 to 4, wherein: the drill bit part is made of hard alloy materials.
6. The cemented carbide compression impact resistant drill bit as set forth in any one of claims 1 to 4, wherein: the rubber sleeve is made of polyurethane rubber.
7. The cemented carbide compression impact resistant drill bit as set forth in any one of claims 1 to 4, wherein: the maximum width of side sword is 18mm, the length of chip removal arc groove is 10mm, the length of side sword is 75 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020572678.8U CN212054509U (en) | 2020-04-17 | 2020-04-17 | Hard alloy compression-resistant impact drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020572678.8U CN212054509U (en) | 2020-04-17 | 2020-04-17 | Hard alloy compression-resistant impact drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212054509U true CN212054509U (en) | 2020-12-01 |
Family
ID=73524179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020572678.8U Expired - Fee Related CN212054509U (en) | 2020-04-17 | 2020-04-17 | Hard alloy compression-resistant impact drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212054509U (en) |
-
2020
- 2020-04-17 CN CN202020572678.8U patent/CN212054509U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |