CN203546058U - Bit for taphole drill of blast furnace - Google Patents
Bit for taphole drill of blast furnace Download PDFInfo
- Publication number
- CN203546058U CN203546058U CN201320721349.5U CN201320721349U CN203546058U CN 203546058 U CN203546058 U CN 203546058U CN 201320721349 U CN201320721349 U CN 201320721349U CN 203546058 U CN203546058 U CN 203546058U
- Authority
- CN
- China
- Prior art keywords
- drill body
- brill
- blast furnace
- round platform
- tooth
- 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 - Lifetime
Links
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 38
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 229910052742 iron Inorganic materials 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 14
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a bit for a taphole drill of a blast furnace. The bit comprises a bit body, wherein the front end of the bit body is provided with a plurality of bit teeth, a locating tooth located on the same central axis with the bit body is arranged at the center of the front end face of the bit body, and the front end of the locating tooth extends to the front of the bit teeth. According to the utility model, the locating tooth higher than other bit teeth is arranged at the center of the bit body, and the locating tooth firstly enters gun mud when working to play a locating role and ensure that the bit can not vibrate in a drilling process, so that the success rate of drilling once is increased.
Description
Technical field
The utility model relates to a kind of bit used for blast furnace open iron machine.
Background technology
The stemming that tap hole of blast furnace is filled for boring out blast furnace iron notch place, flows out molten iron, and tap hole of blast furnace adopts special drill bit.
The stemming that fill at iron notch place left by brill, and it is hazardous operation that molten iron is flowed out.Therefore, the opening ball tooth originally using, can not locate, and (it is large that opening ball tooth footpath obviously becomes) opening time is long, and in addition, because the position in hole is indefinite, opening ball tooth is in the shake of stemming face, and drilling rod fractures, and stemming surface damage causes the processing operation amount after molten iron discharging to increase.The vibration of the medullary ray of ball tooth when rotating is difficult to overcome, along perforate medullary ray once smoothly perforate also have any problem.
Summary of the invention
The purpose of this utility model is: a kind of bit used for blast furnace open iron machine with positioning function is provided.
In order to solve the problems of the technologies described above, the utility model comprises drill body, the front end of described drill body is provided with multiple brill teeth, the central position of the front end face of drill body be provided with one with the positioning tooth of the concentricity axis of drill body, positioning tooth front end reaches the front of all brill teeth.
For the ease of positioning tooth, enter stemming, described positioning tooth is most advanced and sophisticated cone forward.
In order to make positioning tooth there is good boring ability, described positioning tooth comprises a round platform and a brill tooth, the large end of round platform is connected with the front end of drill body, boring tooth is arranged on the small end of round platform, the maximum diameter of the brill tooth on round platform is not more than the end diameter of round platform, and the brill tooth front end on round platform reaches the front of all brill teeth.
Firm in order to connect, the brill toothed portion on described round platform is embedded in the small end of round platform.
In order to make center drill tooth play better positioning action when the tapping outlet, the outside diameter of described round platform is 18-25mm, and frustum cone height is 20-30mm.
Fixed on drill body in order to make to bore tooth, the front end of described drill body is provided with chamfering, in plane during the He inclined-plane, inclined-plane that on drill body, chamfering forms surrounds, be equipped with multiple brill teeth, brill tooth on drill body is set directly on the front end face of drill body, and the brill toothed portion on drill body is embedded in drill body.
For the ease of chip removal, so that boring faster, described drill body is step shaft, the front end external diameter of drill body is greater than rear end external diameter, the front end side wall of drill body is provided with the junk slot of multiple length directions on the axial direction due of drill body, in the planar section of the front end face of junk slot incision drill body.
For the ease of being connected with drilling rod, the rear end of described drill body is provided with the threaded hole for jointed rod, and the both sides of the rear end of drill body are provided with spanner and sting groove.
For the ease of cooling drill bit, described drill body is provided with main cooling pore, the threaded hole on front end face and the drill body rear end of main cooling pore connection drill body, and the cell wall of each junk slot is provided with the cooling pore of side that connects main cooling pore.
In order to improve the work-ing life of boring tooth, described brill tooth is hard alloy spherical-teeth.
The beneficial effects of the utility model: the utility model arranges the positioning tooth that exceeds other brill tooth at the center of drill body, when work, make positioning tooth enter at first stemming, make positioning tooth play the effect of location, drill bit in boring procedure can not be trembleed, improve the success ratio of a perforate.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of specific embodiment of the utility model one;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the use status architecture schematic diagram of specific embodiment of the utility model one;
Fig. 5 is the main TV structure schematic diagram of specific embodiment of the utility model two;
Fig. 6 is the plan structure schematic diagram of Fig. 5;
Fig. 7 is the B-B sectional view of Fig. 6;
In figure: 1, drill body, 2, junk slot, 3, the cooling pore of side, 4, bore tooth, 5, round platform, 6, main cooling pore, 7, stemming, 8, rig, 9, positioning tooth, 10, threaded hole, 11, spanner stings groove.
Embodiment
A kind of specific embodiment as shown in Figure 1, Figure 2 and Figure 3, it comprises drill body 1, the front end of drill body 1 is provided with multiple brill teeth 4, the central position of the front end face of drill body 1 be provided with one with the round platform 5 of drill body 1 concentricity axis, generally the outside diameter of round platform 5 is 18-25mm, round platform 5 is highly 20-30mm, and the size of round platform can be done suitable adjustment according to the size of other parts of drill bit.The large end of round platform 5 is connected with the front end of drill body 1, the small end of round platform 5 be provided with one with the brill tooth 4 of round platform 5 concentricity axis, the maximum diameter of the brill tooth 4 on round platform 5 is not more than the end diameter of round platform 5, and the brill tooth 4 on round platform 5 is positioned at the foremost of all brill teeth 4.Brill tooth 4 on round platform 5 and round platform 5 forms positioning tooth.
On above-mentioned substantially improved basis, this specific embodiment also has the technical characterictic of following optimization, and drill body 1 is step shaft, and the front end external diameter of drill body 1 is greater than rear end external diameter.The rear end of drill body 1 is provided with the threaded hole 10 for jointed rod, and the both sides of the rear end of drill body 1 are provided with spanner and sting groove 11.
The front end of drill body 1 is provided with chamfering, the front end face of drill body 1 comprise chamfering form He inclined-plane, inclined-plane surround in plane, in plane during the He inclined-plane, inclined-plane that on drill body 1, chamfering forms surrounds, be equipped with multiple brill teeth 4, the front end side wall of drill body 1 is provided with the junk slot 2 of multiple length directions on the axial direction due of drill body, and junk slot 2 is cut in the planar section of front end face of drill body 1.Brill tooth 4 on round platform 5, other brill tooth 4 is all set directly on the front end face of drill body 1, and the brill tooth 4 being set directly on drill body 1 front end face is partly embedded in drill body 1, and the brill tooth 4 on round platform 5 is partly embedded in the small end of round platform 5.Drill body 1 is provided with main cooling pore 6, and main cooling pore 6 is communicated with the threaded hole 10 on front end face and the drill body rear end of drill body 1, and the cell wall of each junk slot 2 is provided with the cooling pore 3 of side that connects main cooling pore 6.All brill teeth 4 are hard alloy spherical-teeth.
As shown in Figure 4, during use, this drill bit is arranged on to the guiding drilling rod of rig 8, guiding drilling rod is free to slide along the medullary ray of rig 8, the brill tooth 4 being arranged on round platform 5 on drill bit is advanced on the medullary ray of rig 8, along central shaft, impact and rotate, brill tooth 4 on round platform 5 first pierces stemming 7, and always at the medullary ray of stemming 7 shot borehole of going forward, start positioning action, therefore, after other bores tooth 4 also to enter stemming, whole drill bit can not tremble, this drill bit is along the medullary ray of stemming 7, by opening of stemming 7 rectilinearity.
Specific embodiment two
As shown in Fig. 5, Fig. 6 and Fig. 7, this specific embodiment is that with the difference of specific embodiment one positioning tooth 9 is tip cones forward.Only some forms, and does not need to be arranged to two portions.The positioning tooth 9 of this specific embodiment can be one-body molded with drill body 1, is also welded on drill body 1.Positioning tooth 9 can adopt the material identical with drill body 1, as common gold closes.
Claims (10)
1. a bit used for blast furnace open iron machine, comprise drill body, the front end of described drill body is provided with multiple brill teeth, it is characterized in that: the central position of the front end face of drill body be provided with one with the positioning tooth of the concentricity axis of drill body, positioning tooth front end reaches the front of all brill teeth.
2. bit used for blast furnace open iron machine according to claim 1, is characterized in that: described positioning tooth is most advanced and sophisticated cone forward.
3. bit used for blast furnace open iron machine according to claim 1, it is characterized in that: described positioning tooth comprises a round platform and a brill tooth, the large end of round platform is connected with the front end of drill body, boring tooth is arranged on the small end of round platform, the maximum diameter of the brill tooth on round platform is not more than the end diameter of round platform, and the brill tooth front end on round platform reaches the front of all brill teeth.
4. bit used for blast furnace open iron machine according to claim 3, is characterized in that: the brill toothed portion on described round platform is embedded in the small end of round platform.
5. according to the bit used for blast furnace open iron machine described in claim 3 or 4, it is characterized in that: the outside diameter of described round platform is 18-25mm, frustum cone height is 20-30mm.
6. according to the bit used for blast furnace open iron machine described in any one in claim 1-4, it is characterized in that: the front end of described drill body is provided with chamfering, in plane during the He inclined-plane, inclined-plane that on drill body, chamfering forms surrounds, be equipped with multiple brill teeth, brill tooth on drill body is set directly on the front end face of drill body, and the brill toothed portion on drill body is embedded in drill body.
7. bit used for blast furnace open iron machine according to claim 6, it is characterized in that: described drill body is step shaft, the front end external diameter of drill body is greater than rear end external diameter, the front end side wall of drill body is provided with the junk slot of multiple length directions on the axial direction due of drill body, in the planar section of the front end face of junk slot incision drill body.
8. bit used for blast furnace open iron machine according to claim 7, is characterized in that: the rear end of described drill body is provided with the threaded hole for jointed rod, and the both sides of the rear end of drill body are provided with spanner and sting groove.
9. bit used for blast furnace open iron machine according to claim 8, it is characterized in that: described drill body is provided with main cooling pore, threaded hole on front end face and the drill body rear end of main cooling pore connection drill body, the cell wall of each junk slot is provided with the cooling pore of side that connects main cooling pore.
10. bit used for blast furnace open iron machine according to claim 9, is characterized in that: described brill tooth is hard alloy spherical-teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320721349.5U CN203546058U (en) | 2013-11-13 | 2013-11-13 | Bit for taphole drill of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320721349.5U CN203546058U (en) | 2013-11-13 | 2013-11-13 | Bit for taphole drill of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546058U true CN203546058U (en) | 2014-04-16 |
Family
ID=50464203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320721349.5U Expired - Lifetime CN203546058U (en) | 2013-11-13 | 2013-11-13 | Bit for taphole drill of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203546058U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527762A (en) * | 2019-10-08 | 2019-12-03 | 武汉钢铁集团鄂城钢铁有限责任公司 | A kind of dedicated big gun cap, combination unit and the method for blast furnace centering tapping outlet eye |
-
2013
- 2013-11-13 CN CN201320721349.5U patent/CN203546058U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110527762A (en) * | 2019-10-08 | 2019-12-03 | 武汉钢铁集团鄂城钢铁有限责任公司 | A kind of dedicated big gun cap, combination unit and the method for blast furnace centering tapping outlet eye |
| CN110527762B (en) * | 2019-10-08 | 2021-03-23 | 宝武集团鄂城钢铁有限公司 | Special gun cap for centering iron opening hole for blast furnace, combined device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190628 Address after: 252300 Liu Miao, Anle Town, Yanggu County, Liaocheng City, Shandong Province Patentee after: YANGGU HAOQUAN ROCK TOOLS Co.,Ltd. Address before: 252300 Shandong Liaocheng Yanggu County Anle Town Liu Miao Yanggu Haoquan Machinery Co., Ltd. Patentee before: Song Jiyong |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |