CN203668432U - Drill bit at blast-furnace casting hole - Google Patents
Drill bit at blast-furnace casting hole Download PDFInfo
- Publication number
- CN203668432U CN203668432U CN201320887713.5U CN201320887713U CN203668432U CN 203668432 U CN203668432 U CN 203668432U CN 201320887713 U CN201320887713 U CN 201320887713U CN 203668432 U CN203668432 U CN 203668432U
- Authority
- CN
- China
- Prior art keywords
- main body
- blast
- drill bit
- casting hole
- furnace casting
- 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
Images
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model discloses a drill bit at a blast-furnace casting hole, and belongs to components of tapping machines in blast-furnace production. According to the drill bit at the blast-furnace casting hole, three cutters are connected onto a main body; a scrap discharge groove is formed between every two adjacent cutters; an air outlet is formed in the front end of the main body; the rear end of the main body is provided with a connecting thread. An angle a at the front end of each cutter is an acute angle of 60 degrees, and an angle b is 104 degrees. As the tail end of the main body of the drill bit at the blast-furnace casting hole is provided with the connecting thread, one connecting sleeve which can be connected onto a drill rod in a variable modifying manner can be additionally arranged under special conditions. The drill bit at the blast-furnace casting hole adopts a simple structure and is easy to cast, good in strength, convenient to replace, easy to cool and easy to discharge scraps, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of blast furnace iron tapping hole drill, belongs to the technical field of blast furnace production split shed machine element.
Background technology
In modern blast furnace ironmaking, iron notch drill bit plays a very important role, and it penetrates the furnace wall of blast furnace, guarantees that molten iron can normally flow out.Therefore, the working conditions of drill bit is as all even more serious than other parts in temperature, pressure, corrosion and pollution, and in order to guarantee that tap hole of blast furnace can normally use, drill bit must have some strength, is easy to cooling and changes conveniently.The drill bit structure complexity adopting in the past, changes difficulty, and cooling is poor, chip removal inconvenience.
Summary of the invention
In order to solve problems of the prior art, the utility model provides a kind of blast furnace iron tapping hole drill, and this drill bit is answered the simple structure of Bian, is easy to casting, and intensity is good, and it is convenient to change, and is easy to coolingly, is easy to chip removal, has extended work-ing life.
The utility model solves the technical scheme that its technical problem adopts: a kind of novel blast-furnace iron notch drill bit comprises blade, described blade is fixedly connected in main body, between adjacent knife blades, form junk slot, one end of main body (4) is provided with air outlet opening, the other end is provided with connecting thread, and air outlet opening is communicated with connecting thread hole; The angle a of described blade front end is 60 degree angles, and depression angle b is 104 degree angles.
The quantity of described blade is 3, adopts the structure that is distributed on body peripheral edge, and the quantity of described air outlet opening is 3, adopts and is distributed near in the main body of junk slot root.
The pitch c of described connecting thread is 12.7mm.
The beneficial effects of the utility model are: this blast furnace iron tapping hole drill, and 3 blades connect in main body, go into junk slot between adjacent knife blades, and the front end of main body is with air outlet opening, and body rear is with connecting thread.The angle a of blade front end used is 60 degree angles, and b is 104 degree angles.The main body tail end of this blast furnace iron tapping hole drill has connecting thread, increases under specific circumstances an adapter sleeve and is connected on drilling rod for conversion allotment.The simple structure of this blast furnace iron tapping hole drill Bian, is easy to casting, and intensity is good, and it is convenient to change, and is easy to coolingly, is easy to chip removal, has extended work-ing life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is a kind of front view of blast furnace iron tapping hole drill.
Fig. 2 is a kind of right view of blast furnace iron tapping hole drill.
Fig. 3 is a kind of sectional view of blast furnace iron tapping hole drill.
In figure: 1, blade, 2, junk slot, 3, air outlet opening, 4, main body, 5, connecting thread.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 show a kind of blast furnace iron tapping hole drill, and this blast furnace iron tapping hole drill adopts and in main body 4, is uniformly distributed, is fixedly connected with three blades 1, between every two adjacent knife blades, forms junk slot 2, and the front end of main body 4 is with three air outlet openings 3.Main body 4 rear ends are with connecting thread 5, and pitch is that c is 12.7mm, increase under specific circumstances an adapter sleeve and are connected on drilling rod for conversion allotment.Blade 1 is special-shaped blade, and the angle a of blade front end is 60 degree angles, and depression angle b is 104 degree angles.
It is cooling that this blast furnace iron tapping hole drill can be adopted ventilation, reduces the temperature of drill bit work head, makes drill bit have enough intensity, adopts steep-pitch thread, and dismounting is very convenient, due to simple structure, is easy to chip removal, low cost of manufacture.
Claims (3)
1. a blast furnace iron tapping hole drill, comprise blade (1), it is characterized in that: described blade (1) is fixedly connected in main body (4), between adjacent knife blades, form junk slot (2), the front end of main body (4) is provided with air outlet opening (3), rear end is provided with connecting thread (5), and air outlet opening (3) is communicated with connecting thread hole (5a); The angle a of described blade (1) front end is 60 degree angles, and depression angle b is 104 degree angles.
2. a kind of blast furnace iron tapping hole drill according to claim 1, is characterized in that: described blade (1)
Quantity be 3, adopt and be distributed on the structure of main body (4) periphery, the quantity of described air outlet opening (3) is 3, adopts and is distributed near in the main body (4) of junk slot (2) root.
3. a kind of blast furnace iron tapping hole drill according to claim 1, is characterized in that: the pitch c of described connecting thread (5) is 12.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320887713.5U CN203668432U (en) | 2013-12-31 | 2013-12-31 | Drill bit at blast-furnace casting hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320887713.5U CN203668432U (en) | 2013-12-31 | 2013-12-31 | Drill bit at blast-furnace casting hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203668432U true CN203668432U (en) | 2014-06-25 |
Family
ID=50964748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320887713.5U Expired - Fee Related CN203668432U (en) | 2013-12-31 | 2013-12-31 | Drill bit at blast-furnace casting hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203668432U (en) |
-
2013
- 2013-12-31 CN CN201320887713.5U patent/CN203668432U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202356688U (en) | Twist drill bit cooling structure | |
| CN205200648U (en) | Milling cutter | |
| CN203668432U (en) | Drill bit at blast-furnace casting hole | |
| CN204449527U (en) | A kind of screw cutter with interior cooling structure | |
| CN203484723U (en) | Combined numerical control milling cutter | |
| CN207431345U (en) | Carbon fibre composite process tool | |
| CN202894491U (en) | Reamer holder | |
| CN203448693U (en) | Special lathe tool for high thermal dissipation train hub | |
| CN203156122U (en) | Carbide-tipped milling cutter | |
| CN201895118U (en) | Center drill | |
| CN202894490U (en) | Novel reamer knife back | |
| CN207272258U (en) | A kind of detachable drilling and tapping integral type screw tap | |
| CN201906893U (en) | Disk saw blade | |
| CN206009871U (en) | A kind of integral type cutter | |
| CN204893056U (en) | Novel big chip removal bulb milling cutter of twolip | |
| CN203061912U (en) | Micro-diameter inner hole machining tool | |
| CN202591699U (en) | Assembled type bulb milling tool | |
| CN212249858U (en) | Novel high-efficient longlife running-in drill bit | |
| CN203830800U (en) | Percussion drilling sheet | |
| CN201728442U (en) | Reverse spiral tap | |
| CN204843073U (en) | Novel drilling reamer drill tip | |
| CN203791689U (en) | Protruding three-side drilling blade with corrugated cutter point and high boss | |
| CN203236054U (en) | Detachable backward broach | |
| CN102704854B (en) | Special-shaped alloy drill bit and tooth fixing process thereof | |
| CN210209491U (en) | Lathe tapping frock |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116113, Dalian Bay, Ganjingzi District, Liaoning, Dalian bay equipment manufacturing industry zone Patentee after: FOTURN PRECICAST COMPONENT CO., LTD. Address before: 116113, Dalian Bay, Ganjingzi District, Liaoning, Dalian bay equipment manufacturing industry zone Patentee before: Foturn Precision Component Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20161231 |