CN2714210Y - Drill bit for replacing tuyere with cylindrical cutter - Google Patents
Drill bit for replacing tuyere with cylindrical cutter Download PDFInfo
- Publication number
- CN2714210Y CN2714210Y CN 200420081817 CN200420081817U CN2714210Y CN 2714210 Y CN2714210 Y CN 2714210Y CN 200420081817 CN200420081817 CN 200420081817 CN 200420081817 U CN200420081817 U CN 200420081817U CN 2714210 Y CN2714210 Y CN 2714210Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- replacing
- tuyere
- cylindrical cutter
- cutter
- 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
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Abstract
The utility model discloses a drill bit for replacing a tuyere with a cylindrical cutter. The drill bit for replacing a tuyere with a cylindrical cutter is mainly composed of a drill bit body and a drill bit connected with the head of the drill bit body, and the drill bit body is provided with a cutter. The drill bit for replacing a tuyere with cylindrical cutter is characterized in that the cutter is in the shape of a cylinder. The utility model has simple structure and artful design, and the cylindrical cutter can conduct a heavy cut. The drill bit for replacing a tuyere with a cylindrical cutter does not wring a steel pipe into a twist shape, and largely shortens the job time. The original entire job time (consisting of preparation, disassembly, assembly, drill, repair, grouting, gas testing, etc) consumes 8-10 hours, and wherein, the drilling time takes 6. 5-8 hours. Now the job time only needs 2-2. 5 hours, and wherein the drilling time is 20-25 minutes. Therefore, the drill bit for replacing a tuyere with a cylindrical cutter largely prolongs the service life two times as long as an original drill bit.
Description
Technical field:
The utility model relates to a kind of drilling tool, particularly relates to a kind of drilling tool that is used to change the converter air port.
Background technology:
The furnace bottom of every converter is equipped with 6-8 air port respectively at diverse location.Be inclusive with the oxygen blown breather pipe in stove that is used for of 60 irregular distributions in it.When wherein the oxygen blast effect in a certain air port can not reach requirement, must change, otherwise can influence smelting quality, prolong the duration of heat.And when changing, under the prerequisite of not damaging converter furnace wall furnace lining, not only the anti-material in air port will be removed, and stainless-steel pipe will be cut off and remove, keep the furnace wall original coniform injury-free as far as possible, guarantee the sealing in air port.And the drill bit that is used to change the air port of import at present is discoid, and the drilling cutting edge is many strips of center radiation formula cutting edge, and excircle does not have cutting edge.So what its brill broke into shape is straight hole, owing to be the relation of cutting edge, stainless-steel pipe can not be cut off and remove, but steel pipe is hinged into twisted shape, and to impact with pneumatic pick at last, the oxygen rifle blows burning and could remove, because the utensil active component lacks, brill breaks into the curved shape in hole of shape or breaks into inclined hole, can't guarantee the linearity in hole, and circular cone relies on the artificial back of revising to adopt fire clay grouting to form.So the entire job time needs 8-10 hour, wherein the brill time of beating accounted for 6.5-8 hour.
Summary of the invention:
It is cylindrical replacing air port drill bit that the purpose of this utility model is to provide a kind of cutting element, and it can solve some shortcomings of the prior art.
To achieve these goals, the technical solution of the utility model is: a kind of cutting element is a cylindrical replacing air port drill bit, it mainly is made up of bit body and the drill bit that is connected in its head, and bit body is provided with cutting element, it is characterized in that: described cutting element is a cylinder.
Owing to adopt such scheme, be not difficult to draw as drawing a conclusion: the utility model is simple in structure, be skillfully constructed, its tapering, big path conforms to the air port air brick, so the aperture that is processed meets the tapering requirement, good seal performance, can carry out high-rate cutting and be cylindrical cutting element, steel pipe can be twisted into twisted shape, greatly shortened the activity duration, the former entire job time (contains preparation, dismounting, bore and beat, repair, grouting, gas testing etc.) need 8-10 consuming time hour, wherein the brill time of beating accounted for 6.5-8 hour, and only need 2-2.5 hour now, wherein boring the time of beating is 20-25 minute, so also greatly prolonged service life, be original 3 times, the utility model has promotional value.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
This replacing air port drill bit, it is mainly formed by bit body 1 with by the drill bit 2 that connector 4 is connected in its head, the bit body cylindrical is processed into the coarse pitch helicla flute, this groove helps the discharge of scrap, be cylindrical cutting element 3 and equidistantly be located at spirally on the bit body 1, wherein bit body 1 is a cone.The length overall of above-mentioned bit body is that 2050 millimeters, effective length are that 1650 millimeters, cone segment length are 1350 millimeters, 129 millimeters of path Φ, 171 millimeters of big footpath Φ.
Claims (2)
1, a kind of cutting element is a cylindrical replacing air port drill bit, and it mainly is made up of bit body and the drill bit that is connected in its head, and bit body is provided with cutting element, it is characterized in that: described cutting element is a cylinder.
2, be cylindrical replacing air port drill bit by the described a kind of cutting element of claim 1, it is characterized in that: the cylindrical of above-mentioned bit body is provided with the pitch helicla flute, and length overall is that 2000-2100 millimeter, effective length are that 1600-1700 millimeter, cone segment length are 1300-1400 millimeter, path Ф 125-135 millimeter, big footpath Ф 165-175 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081817 CN2714210Y (en) | 2004-08-13 | 2004-08-13 | Drill bit for replacing tuyere with cylindrical cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081817 CN2714210Y (en) | 2004-08-13 | 2004-08-13 | Drill bit for replacing tuyere with cylindrical cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2714210Y true CN2714210Y (en) | 2005-08-03 |
Family
ID=34874750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081817 Expired - Fee Related CN2714210Y (en) | 2004-08-13 | 2004-08-13 | Drill bit for replacing tuyere with cylindrical cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2714210Y (en) |
-
2004
- 2004-08-13 CN CN 200420081817 patent/CN2714210Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAIPINHUA METALLURGY MACHINE EQUIPMENT MANUFA Free format text: FORMER NAME OR ADDRESS: SHANGHAI PINHUA METALLURGY MACHINE EQUIPMENT FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 8358, Lane 101, Hu Tai Road, Shanghai, Baoshan District: 201908 Patentee after: Shanghai Hua Hua Metallurgical Machinery Equipment Manufacturing Co., Ltd. Address before: Shanghai City, Baoshan Luo Jing pan Chuan Road No. 1758, zip code: 200949 Patentee before: Shanghai Pinhua Metallurgical Machinery Equipment Manufacturing Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050803 Termination date: 20130813 |