CN110643767A - Drill bit for fast drilling blast furnace gun - Google Patents
Drill bit for fast drilling blast furnace gun Download PDFInfo
- Publication number
- CN110643767A CN110643767A CN201910894343.XA CN201910894343A CN110643767A CN 110643767 A CN110643767 A CN 110643767A CN 201910894343 A CN201910894343 A CN 201910894343A CN 110643767 A CN110643767 A CN 110643767A
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- China
- Prior art keywords
- edge
- drill bit
- blast furnace
- drilling
- drill
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The invention discloses a drill bit for rapidly drilling a blast furnace mud gun, which comprises a drill handle, wherein one end of the drill handle is provided with a plurality of edge blocks, two surfaces which are not parallel to each other in the outer surfaces of the edge blocks are used as edge slope surfaces, the intersection of the two edge slope surfaces forms an edge, one ends of all the edge edges are converged together to form a sharp edge, the other end of the edge extends outwards, the other end of the drill handle is in a stepped shaft shape and consists of a plurality of shaft sections with different outer diameters, and the outer peripheral surface of each shaft section is provided with a spline. By adopting the technical scheme of the invention, good positioning can be realized through the sharp blade when the drill bit is used, slipping and deviation during drilling operation are avoided, the spherical teeth are embedded on the two sides of the edge blade, the impact force of the drill bit during drilling is increased, the drill bit is easy to drill, the drilling efficiency is improved, and the drill handle is arranged into a stepped shaft shape, so that a user can be connected with a drilling tool through shaft sections with different outer diameters, the drilling depth is favorably prolonged, the drill bit is prevented from vibrating, and the drilling precision is improved.
Description
Technical Field
The invention belongs to the technical field of blast furnace maintenance tools, and relates to a drill bit for quickly drilling a blast furnace mud gun.
Background
The blast furnace for steel smelting needs to drill a mud gun on the blast furnace through a drill bit to discharge molten iron. Among the prior art, because the drilling rod of connecting the drill bit is longer, the drill bit skids easily on the mud gun, bores partially, has reduced the efficiency of drilling, and the hole of boring out is also not enough regular, influences the quality of tapping, in addition, because blast furnace mud gun hardness is higher after the high temperature hardening, current opening drill bit drilling rate is slow and inefficiency, and life is short, consequently, in order to overcome the defect that exists among the prior art, the urgent need design development a neotype blast furnace opening drill bit.
Disclosure of Invention
In order to solve the technical problem, the invention provides a drill bit for quickly drilling a blast furnace mud gun.
The invention is realized by the following technical scheme.
The invention provides a drill bit for rapidly drilling a blast furnace mud gun, which comprises a drill handle, wherein one end of the drill handle is provided with a plurality of edge blocks, two surfaces which are not parallel to each other in the outer surfaces of the edge blocks are used as edge slope surfaces, edge edges are formed at the intersection of the two edge slope surfaces, one ends of all the edge edges are converged together to form a sharp edge, the other end of each edge extends outwards, the other end of the drill handle is in a stepped shaft shape and consists of a plurality of shaft sections with different outer diameters, and a spline is arranged on the outer peripheral surface of each shaft section.
The number of the edge blades is more than 3.
At least 2 spherical teeth are embedded on the blade slope surface.
The spherical teeth are made of hard alloy.
The part of the spherical tooth embedded in the edge slope surface is one half to two thirds of the volume of the spherical tooth.
The outer diameter of the spherical tooth is one third to one half of the width of the blade slope.
The splines are external splines, and the number of the splines arranged on the peripheral surface of each shaft section is 6.
A chip groove is formed between any two adjacent splines, and the surface of the inner wall of the chip groove is arc-shaped.
A ventilation blind hole is formed in the drill handle, at least one chip removal hole is formed between every two adjacent side edges, and the chip removal holes are communicated with the ventilation blind hole.
The inclination angle of the extending direction of the edge relative to the axial direction of the drill handle is 30-60 degrees.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, good positioning can be realized through the sharp blade when the drill bit is used, the phenomena of slipping and deviation of drilling during drilling operation are avoided, the spherical teeth are embedded on the two sides of the edge and increase the impact force of the drill bit during drilling, and repeated impact can be formed on the hardened blast furnace mud gun, so that the drill bit is easy to drill, the drilling efficiency is improved, the drilling time is shortened, in addition, the abrasion of the edge is reduced due to the addition of the spherical teeth, the service life of the drill bit is prolonged, in addition, the drill handle is arranged in a stepped shaft shape, a user can be connected with a drilling tool through shaft sections with different outer diameters, the drilling hole depth is favorably prolonged, the drill bit is prevented from vibrating, and the drilling precision is improved.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view of the present invention taken axially along the drill shank;
FIG. 3 is a schematic cross-sectional view of a shaft segment of the present invention.
In the figure: 1-drill handle, 2-blade block, 3-blade slope, 4-edge blade, 5-sharp blade, 6-spline, 7-spherical tooth, 8-chip groove, 9-ventilation blind hole and 10-chip removal hole.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1, 2 and 3, the drill bit for fast drilling a blast furnace mud gun of the invention comprises a drill handle 1, wherein one end of the drill handle 1 is provided with a plurality of edge blocks 2, two non-parallel surfaces in the outer surfaces of the edge blocks 2 are used as edge slopes 3, edges 4 are formed at the intersection of the two edge slopes 3, one ends of all the edges 4 are converged together to form a sharp edge 5, the other ends of the edge 4 extend outwards, the other end of the drill handle 1 is in a stepped shaft shape and consists of a plurality of shaft sections with different outer diameters, and a spline 6 is arranged on the outer peripheral surface of each shaft section.
Further, the number of the edge 4 is preferably 3 or more. At least 2 spherical teeth 7 are embedded on the blade slope surface 3. Preferably, the spherical teeth 7 are made of cemented carbide. The part of the spherical tooth 7 embedded in the edge slope surface 3 is one half to two thirds of the volume of the spherical tooth 7. The outer diameter of the spherical tooth 7 is one third to one half of the width of the blade slope surface 3.
In addition, the splines 6 are external splines 6, and the number of the splines 6 provided on the outer peripheral surface of each shaft segment is 6. The spline is connected with a drilling tool through the spline 6, so that the assembly and disassembly are convenient, and the connection between the drill bit and the drilling tool is firmer and more reliable in the drilling process.
In addition, a chip groove 8 is formed between any two adjacent splines 6, and the inner wall surface of the chip groove 8 is arc-shaped. By adopting the technical scheme of the invention, the drill bit can discharge slag through the chip removal holes 7 and the ventilation blind holes 6 when in use.
In addition, a ventilation blind hole 9 is formed in the drill shank 1, at least one chip removal hole 10 is formed between every two adjacent side edges 4, and the chip removal holes 10 are communicated with the ventilation blind hole 9. The edge 4 preferably extends at an angle of 30 to 60 degrees with respect to the axial direction of the drill shank 1.
By adopting the technical scheme of the invention, good positioning can be realized through the sharp blade when the drill bit is used, the phenomena of slipping and deviation of drilling during the drilling operation are avoided, the spherical teeth are embedded on the two sides of the edge and increase the impact force of the drill bit during drilling, and the hardened blast furnace mud gun can be repeatedly impacted, so that the drill bit is easy to drill, the drilling efficiency is improved, the drilling time is shortened, in addition, the abrasion of the edge 4 is reduced due to the addition of the spherical teeth, the service life of the drill bit is prolonged, in addition, the drill handle is arranged into a stepped shaft shape, a user can be connected with a drilling tool through shaft sections with different outer diameters, the drilling depth is favorably prolonged, the drill bit is prevented from vibrating, and the drilling precision is improved.
Claims (10)
1. The utility model provides a creep into blast furnace mud gun drill bit fast which characterized in that: the drill bit comprises a drill handle (1), wherein one end of the drill handle (1) is provided with a plurality of edge blocks (2), two non-parallel surfaces in the outer surface of each edge block (2) are used as edge slope surfaces (3), edge edges (4) are formed at the intersection of the two edge slope surfaces (3), one ends of all the edge edges (4) are converged together to form a sharp edge (5), the other end of each edge (4) extends outwards, the other end of the drill handle (1) is in a stepped shaft shape and is composed of a plurality of shaft sections with different outer diameters, and a spline (6) is arranged on the outer peripheral surface of each shaft section.
2. The fast drilling blast furnace gun drill bit of claim 1, wherein: the number of the edge blades (4) is more than 3.
3. The fast drilling blast furnace gun drill bit of claim 1, wherein: at least 2 spherical teeth (7) are also embedded on the edge slope surface (3).
4. The fast drilling blast furnace gun drill bit of claim 3, wherein: the spherical teeth (7) are made of hard alloy.
5. The fast drilling blast furnace gun drill bit of claim 3, wherein: the part of the spherical tooth (7) embedded in the blade slope surface (3) is one half to two thirds of the volume of the spherical tooth (7).
6. The fast drilling blast furnace gun drill bit of claim 3, wherein: the outer diameter of the spherical teeth (7) is one third to one half of the width of the blade slope surface (3).
7. The fast drilling blast furnace gun drill bit of claim 1, wherein: the spline (6) is an external spline (6), and the number of the splines (6) arranged on the peripheral surface of each shaft section is 6.
8. The fast drilling blast furnace gun drill bit of claim 1, wherein: a chip groove (8) is formed between any two adjacent splines (6), and the inner wall surface of the chip groove (8) is arc-shaped.
9. The fast drilling blast furnace gun drill bit of claim 1, wherein: the drill handle is characterized in that a ventilation blind hole (9) is formed in the drill handle (1), at least one chip removal hole (10) is formed between every two adjacent side edges (4), and the chip removal holes (10) are communicated with the ventilation blind hole (9).
10. The fast drilling blast furnace gun drill bit of claim 1, wherein: the inclination angle of the extending direction of the edge (4) relative to the axial direction of the drill handle (1) is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910894343.XA CN110643767A (en) | 2019-09-20 | 2019-09-20 | Drill bit for fast drilling blast furnace gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910894343.XA CN110643767A (en) | 2019-09-20 | 2019-09-20 | Drill bit for fast drilling blast furnace gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110643767A true CN110643767A (en) | 2020-01-03 |
Family
ID=69010907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910894343.XA Pending CN110643767A (en) | 2019-09-20 | 2019-09-20 | Drill bit for fast drilling blast furnace gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110643767A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2557526Y (en) * | 2002-05-27 | 2003-06-25 | 许立力 | Integral ball-tooth type drill |
| CN201231533Y (en) * | 2008-02-26 | 2009-05-06 | 贵阳捷盛科技实业发展有限公司 | Opening drill bit for tower blast furnace |
| CN202530101U (en) * | 2012-02-24 | 2012-11-14 | 宝山钢铁股份有限公司 | Drill bit for blast furnace taphole driller |
| CN108868652A (en) * | 2018-07-26 | 2018-11-23 | 天津鸿翔工程机械有限公司 | Machine locking-type drilling rod |
| CN109421165A (en) * | 2017-08-25 | 2019-03-05 | 世铠精密股份有限公司 | Cement drill bit |
-
2019
- 2019-09-20 CN CN201910894343.XA patent/CN110643767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2557526Y (en) * | 2002-05-27 | 2003-06-25 | 许立力 | Integral ball-tooth type drill |
| CN201231533Y (en) * | 2008-02-26 | 2009-05-06 | 贵阳捷盛科技实业发展有限公司 | Opening drill bit for tower blast furnace |
| CN202530101U (en) * | 2012-02-24 | 2012-11-14 | 宝山钢铁股份有限公司 | Drill bit for blast furnace taphole driller |
| CN109421165A (en) * | 2017-08-25 | 2019-03-05 | 世铠精密股份有限公司 | Cement drill bit |
| CN108868652A (en) * | 2018-07-26 | 2018-11-23 | 天津鸿翔工程机械有限公司 | Machine locking-type drilling rod |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200103 |