CN2763461Y - Combined day gun nail head for blast furnace - Google Patents
Combined day gun nail head for blast furnace Download PDFInfo
- Publication number
- CN2763461Y CN2763461Y CN 200520039451 CN200520039451U CN2763461Y CN 2763461 Y CN2763461 Y CN 2763461Y CN 200520039451 CN200520039451 CN 200520039451 CN 200520039451 U CN200520039451 U CN 200520039451U CN 2763461 Y CN2763461 Y CN 2763461Y
- Authority
- CN
- China
- Prior art keywords
- bore bit
- drilling head
- blast furnace
- guiding
- clay gun
- 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
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- Blast Furnaces (AREA)
Abstract
The utility model relates to a clay gun drilling head for blast furnaces, particularly to a combined clay gun drilling head for blast furnaces. The utility model solves the technical problems that the existing clay gun drilling heads have short service life, and repaired clay gun orifices have poor linear degree and high repairing frequency. The utility model is characterized in that guide drilling heads are additionally arranged in a common clay gun drilling head and are all in the structure of four claws; the center of the clay gun drilling head is provided with a hole axially, the front section of the hole is a guide drilling head thread connecting hole, the middle section of the hole is a ventilation hole, and the tail end of the hole is provided with a drilling head thread connecting hole for blast furnaces; the tail end of the guide drilling head thread connecting hole and the front end of the drilling head thread connecting hole for blast furnaces are both provided with left rotary thread processing technology grooves; the four claws are all provided with alloy welding grooves, and alloy sheets are welded in the alloy welding grooves. A lower concave stair is arranged on the front end of the guide drilling head thread connecting hole. The tails of the guide drilling heads are provided with one thread connecting rod, and the thread connecting rod and the guide drilling head are transited through the left rotary processing technology grooves of the guide drilling heads. The thread connecting rod is screwed with a thread connecting hole of the guide drilling heads of the clay gun drilling head. The center of the guide drilling head is provided with guide drilling head venting holes axially. The four claws are all provided with guide drilling head alloy welding grooves, guide drilling head alloy sheets are welded in the grooves, and blowing grooves are arranged among the alloy welding grooves. The utility model is used to repair clay gun orifices of blast.
Description
Technical field: the utility model relates to a kind of blast furnace gun bore bit, particularly a kind of combined type blast furnace gun bore bit.
Background technology: existing blast furnace gun bore bit generally adopts six pawl form of structure.The blast furnace gun bore bit of this form of structure is in the process that the blast furnace gun mouth is repaired, because form of structure is not in full conformity with the drilling operating mode of clay gun, ubiquity short phenomenon in application life, the situation that 4 blast furnace gun bore bits be can not repair 1 clay gun mouth often appears, and there are quality problems such as straightness accuracy difference in the clay gun mouth of repairing, so the frequency that gun muzzle is repaired is very high.Chinese patent 88203308.5 has been introduced a kind of combination bore bit, and the rock drilling industry that is used to dig up mine, form of structure are with original bore bit lengthening, and on the bore bit body of lengthening welding alloy, still have shortcomings such as straightness accuracy difference in the operation process.
Summary of the invention: the purpose of this utility model provides a kind of combined type blast furnace gun bore bit.The technical issues that need to address are: the blast furnace gun bore bit life-span is short, and the clay gun mouth straightness accuracy of repairing is poor, repairs the high defective of frequency.
The technical solution of the utility model is: a kind of combined type blast furnace gun bore bit, on the clay gun bore bit, install the guiding bore bit additional, and clay gun bore bit and guiding bore bit are the four paws structure.Clay gun bore bit central axis is to having the hole, leading portion is guiding bore bit threaded connection hole, the stage casing is a gravity vent, rear is a blast furnace drill steel threaded connection hole, at guiding bore bit threaded connection hole tail end and blast furnace drill steel threaded connection hole front end left hand thread processing technology groove is arranged all, all have the gold alloy solder access slot on the four paws, be welded with alloy sheet in the groove.At guiding bore bit threaded connection hole front end concave station rank are once arranged.The guiding bore bit is the small-sized bore bit of four paws, afterbody has a whorl brace rod, whorl brace rod passes through the transition of guiding bore bit left hand thread processing technology groove with the guiding bore bit, the guiding bore bit threaded connection hole of whorl brace rod and clay gun bore bit spins, guiding bore bit central axis is to convincing by patient analysis to the bore bit gravity vent, have all to have guiding bore bit gold alloy solder access slot on the four paws, be welded with guiding bore bit alloy sheet in the groove, between the gold alloy solder access slot, be provided with blowing slot.
The beneficial effects of the utility model are:
1. the guiding bore bit staggers the drill end surface layer in the process that the clay gun mouth is repaired, and forms two boring end faces, because of forming big distance between two end faces, is convenient to the dust of kicking up, and the row's of making powder is easy, and penetration rate obviously improves.
2. the guiding bore bit has good guidance quality, and the straightness accuracy of blast furnace gun mouth in the process of repairing obviously improved, and repairs frequency and reduces.
3. the guiding bore bit has the advantage that speed is fast, the perforate time is short in the starting stage that the clay gun mouth is repaired.
4. the guiding bore bit is changed easily and fast, the problem that is difficult to dismantle because the guiding bore bit is impacted can not occur.
5. the guiding bore bit is because of having good interchangeability, and the guiding bore bit damages, and can change, and whole blast furnace gun combination bore bit is scrapped.
Description of drawings:
Fig. 1 is the utility model structural representation front view
Fig. 2 is the utility model structural representation left view
Among the figure: 1-guiding bore bit threaded connection hole, 2-step, 3-gravity vent, 4-gold alloy solder access slot, 5-blast furnace drill steel threaded connection hole, 6-alloy sheet, 7-left hand thread processing technology groove, 8-clay gun bore bit, the 9-bore bit that leads, 10-guiding bore bit whorl brace rod, 11-guiding bore bit gravity vent, 12-guiding bore bit gold alloy solder access slot, 13-blowing slot, 14-guiding bore bit alloy sheet, 15-guiding bore bit left hand thread processing technology groove.
The specific embodiment: with reference to accompanying drawing 1,2, the combination bore bit is combined by suitable connected mode (for example M36-L left hand thread) connection by guiding bore bit 9 and clay gun bore bit 8.
The processing technology of clay gun bore bit is similar with the guiding bore bit, and clay gun bore bit 8 is to be made with suitable diameter (this diameter is according to the clay gun mouth decision of different steel mills) round steel (for example 40Cr of φ 205).In machining process, elder generation's planar end surface, step 2 of car (φ 40*5 for example, main purpose is that the bore bit that prevents to lead is impacted and destroys the M36-L levogyrate inner thread, and the problem that is difficult to dismantle appears), car guiding bore bit threaded connection hole 1 again, turning is to figure paper size (for example φ 200) then, turn around flat length overall earlier, back car backstage terrace and blast furnace drill steel threaded connection hole 5 (for example R38-L sinistral external thread), (this hole is mainly used in from the blast furnace drill steel and connects high-pressure blast to bore gravity vent 3, and with high-pressure blast be connected to the guiding bore bit), at guiding bore bit threaded connection hole tail end and blast furnace drill steel threaded connection hole front end left hand thread processing technology groove 7 is arranged all, after the turner operation is finished, enter the miller operation, mill gold alloy solder access slot 4 (being used for welding) with alloy, be reprocessed into the alloy substrate (for example 4 pawl alloy substrates) of right quantity, to be applicable to that by suitable welding method (for example soldering) alloy sheet 6 of blast furnace gun cutting is soldered in the gold alloy solder access slot of clay gun bore bit, has so just finished the manufacturing of clay gun bore bit at last.
After the bore bit that will lead is connected to the clay gun bore bit by connecting thread (for example M36-L left hand thread), again clay gun bore bit and R38 drill steel, drill sleeve, bit shank are connected on the tapping machine, can carry out the clay gun repair.
Claims (6)
1, a kind of combined type blast furnace gun bore bit is characterized in that: install the guiding bore bit on the clay gun bore bit additional, clay gun bore bit and guiding bore bit are the four paws structure.
2, combined type blast furnace gun bore bit according to claim 1, it is characterized in that: clay gun bore bit central axis is to having the hole, leading portion is guiding bore bit threaded connection hole, the stage casing is a gravity vent, rear is a blast furnace drill steel threaded connection hole, at guiding bore bit threaded connection hole tail end and blast furnace drill steel threaded connection hole front end left hand thread processing technology groove is arranged all, all have the gold alloy solder access slot on the four paws, be welded with alloy sheet in the groove.
3, combined type blast furnace gun bore bit according to claim 2 is characterized in that: at guiding bore bit threaded connection hole front end concave station rank are once arranged.
4, combined type blast furnace gun bore bit according to claim 1, it is characterized in that: the guiding bore bit is the small-sized bore bit of four paws, afterbody has a whorl brace rod, the guiding bore bit threaded connection hole of whorl brace rod and clay gun bore bit spins, guiding bore bit central axis is to convincing by patient analysis to the bore bit gravity vent, have all to have guiding bore bit gold alloy solder access slot on the four paws, be welded with guiding bore bit alloy sheet in the groove.
5, combined type blast furnace gun bore bit according to claim 4 is characterized in that: whorl brace rod passes through the transition of guiding bore bit left hand thread processing technology groove with the guiding bore bit.
6, combined type blast furnace gun bore bit according to claim 4 is characterized in that: be provided with blowing slot between guiding bore bit gold alloy solder access slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039451 CN2763461Y (en) | 2005-02-02 | 2005-02-02 | Combined day gun nail head for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039451 CN2763461Y (en) | 2005-02-02 | 2005-02-02 | Combined day gun nail head for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763461Y true CN2763461Y (en) | 2006-03-08 |
Family
ID=36141007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520039451 Expired - Lifetime CN2763461Y (en) | 2005-02-02 | 2005-02-02 | Combined day gun nail head for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763461Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110217A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Guiding drill bit |
-
2005
- 2005-02-02 CN CN 200520039451 patent/CN2763461Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110217A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Guiding drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150202 Granted publication date: 20060308 |