CN201801531U - Hard alloy cross drill sheet blast furnace tapping drill - Google Patents
Hard alloy cross drill sheet blast furnace tapping drill Download PDFInfo
- Publication number
- CN201801531U CN201801531U CN2010205478642U CN201020547864U CN201801531U CN 201801531 U CN201801531 U CN 201801531U CN 2010205478642 U CN2010205478642 U CN 2010205478642U CN 201020547864 U CN201020547864 U CN 201020547864U CN 201801531 U CN201801531 U CN 201801531U
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- wimet
- mounting groove
- cross
- pricker sheet
- sheet
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Abstract
The utility model relates to a hard alloy cross drill sheet blast furnace tapping drill, which comprises a bit body and a hard alloy cross drill sheet firmly welded on the bit body, and the bit body is provided with a mounting socket. The blast furnace tapping drill is characterized in that: the mounting socket is a reduced socket which is reduced from the inside to the outside, the bottom of the inner surface of the mounting socket is provided with a convex surface, both sides of the mounting socket are provided with symmetric convex surfaces, the top of the head of the hard alloy cross drill sheet is provided with a concave surface matched with the bottom of the mounting socket, both sides of the head of the hard alloy cross drill sheet are provided with concave surfaces matched with both sides of the mounting socket, and the head of the hard alloy cross drill sheet is inserted and firmly welded in the mounting socket of the bit body. The utility model enlarges the contact areas of the hard alloy cross drill sheet and the bit body, the engaging force between the hard alloy cross drill sheet and the bit body is enhanced, consequently, the hard alloy cross drill sheet cannot easily come off, the service life of the bit is prolonged, and the production cost of the bit is reduced.
Description
Technical field
The utility model relates to a kind of drilling tool, and particularly a kind of Metal smelting blast furnace opening drilling tool relates in particular to Wimet cross pricker sheet blast furnace opening drilling tool.
Background technology
At present in metallurgical industry blast furnace ironmaking process, the molten iron mouth stops up with no bubble mud, its hardening of high temperature sintering through several hrs, need adopt the tapping outlet rig to incite somebody to action, and sintering mud bubble drills, flow out molten iron, usually adopt the tapping outlet rig to bore the shutoff blast furnace iron notch, its boring bar tool should adapt under the hot environment and uses, and the hole depth of the stream iron mouth of blast furnace is generally 2.5 meters to 4 meters, when fire door drills soon, drill bit is near burner hearth 0.2-0.5M place, the fast temperature of opening place, iron hole when boring saturating blast furnace is up to 800～1100 ℃, is about to when drilled at the iron oral pore, and temperature is up to more than 1200 ℃, when brill blocked up the mud hole thoroughly, drill bit may dissolve in molten steel.Tapping outlet rig drill bit commonly used is a steel head hard-face bit, is made up of bit matrix and the brazing sheet of hard alloy that is fixed on the bit matrix, and the bit matrix material is difficult to tolerate above-mentioned high temperature, and brazing sheet of hard alloy easily comes off.The major cause that causes brazing sheet of hard alloy to come off is that the shape of the cross pricker sheet of Wimet is too simple, as the structure of the cross pricker sheet of employed Wimet in the prior art usually as shown in Figure 1, its bottom surface and side are the plane, mode by welding is fixed on the drilling tool matrix, have following problem: the blast furnace opening bores the body of work regional centralized in the brazing sheet of hard alloy position, the pricker sheet is only fixing by the mode and the matrix welding of brazing, spelter solder fusing point used when itself and matrix weld has only 930 degrees centigrade usually, the blast furnace opening bores and at high temperature works for a long time, and the face of weld between cross pricker sheet of Wimet and the drill body is limited, the two snap-in force is limited, after a spot of spelter solder fusion, the pricker sheet directly comes off from the drilling tool matrix, can't adapt to the open-work needs.On the other hand, embedding frame of the bit Wimet volume interior, that do not play cutting action is bigger, makes the drill produced cost higher; In use a bit drills can't independently be finished the probing in a hole, needs several drill bits just can drill the oral pore that taps a blast furnace sometimes, and drilling life of bit is too short, and drill bit consumption is too high.
Summary of the invention
The purpose of this utility model is the deficiency at prior art, provide a kind of Wimet cross pricker sheet blast furnace opening to bore, its brazing sheet of hard alloy can be good with matrix bond, prevent that brazing sheet of hard alloy from coming off from matrix, improve drilling life of bit, saved the Hardmetal materials more than 10% when reducing the drill bit consumption of blast furnace opening.
The technical solution of the utility model is:
A kind of Wimet cross pricker sheet blast furnace opening bores, comprise drill body and the cross pricker sheet of Wimet that is fixedly welded on the drill body, described drill body is provided with mounting groove, it is characterized in that: described mounting groove be in big outer tight mouthful of little groove, the cross pricker sheet of described Wimet head shape and mutual coupling identical with the mounting groove cross-sectional shape, the intercalation of the cross pricker sheet of described Wimet head is fixedly welded on mounting groove on the drill body.
As to further improvement of the utility model, the bottom surface of described mounting groove internal surface is provided with convex surfaces, described mounting groove two sides are provided with symmetric convex surfaces, the end face of the cross pricker sheet of described Wimet head is provided with the inner concave with mounting groove bottom surface coupling, and the two sides of the cross pricker sheet of described Wimet head are respectively arranged with the inner concave with mounting groove two sides coupling.
As to further improvement of the utility model, the convex surfaces of described mounting groove internal surface bottom surface is an arc surface, the convex surfaces of described mounting groove two sides is an arc surface, the inner concave of the cross pricker sheet of described Wimet head end face is an arc surface, and the inner concave of the two sides of the cross pricker sheet of described Wimet head is an arc surface.
As to further improvement of the utility model, the bottom surface of described mounting groove internal surface and the angle of two sides are chamfering, the chamfering of the angle of the cross pricker sheet of described Wimet head end face and two sides for being complementary with the mounting groove internal surface.
As to further improvement of the utility model, the depth B of the arc surface of the two sides of the cross pricker sheet of described Wimet head is 0.5mm≤B≤4mm, width A is 0.5mm≤A≤4mm, and the size conforms Wimet cross pricker sheet head intercalation of described mounting groove is installed to be needed.
The beneficial effects of the utility model are:
Because the utility model is big outer little tight mouth groove in mounting groove is set on drill body, the intercalation of the cross pricker sheet of Wimet can be fixedly welded on the drill body, increase the contact area of Wimet and drill body, promptly increased bonding area, there is more stacked solder to be welded between matrix and the cross pricker sheet during welding, increase the snap-in force between the two greatly, when the blast furnace opening is worked with drilling tool, the cross pricker sheet of the cross pricker sheet of Wimet is not easy to come off, improve the working efficiency of drill bit, prolonged the work-ing life of drill bit.On the other hand, embed the frame of the bit cross pricker sheet of Wimet head volume interior, that do not play cutting action and reduce greatly, reduced the production cost of drill bit, saved the Hardmetal materials more than 10%.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is Wimet cross pricker sheet and a drill body bonded structural representation in the prior art;
Fig. 2 is Wimet cross pricker sheet of the present utility model and drill body bonded structural representation;
Fig. 3 looks synoptic diagram for Wimet cross pricker chip architecture master of the present utility model,
Fig. 4 looks synoptic diagram for a Wimet cross pricker chip architecture of the present utility model left side.
Among the figure: 1-drill body, 2-mounting groove, 3-inner concave, 4-Wimet cross pricker lamellar body.
Embodiment
A kind of Wimet cross pricker sheet is used for the blast furnace opening and bores, comprise drill body 1 and the cross pricker sheet 4 of Wimet that is fixedly welded on the drill body 1, as shown in Figure 2, Wimet cross pricker sheet 4 as shown in Figure 3 and Figure 4, drill body 1 is provided with mounting groove 2, mounting groove 2 be in big outer tight mouthful of little groove, cross pricker sheet 4 nose shapes of Wimet and mutual coupling identical with mounting groove 2 cross-sectional shapes, the cross pricker sheet 3 head intercalations of Wimet are fixedly welded on the drill body in the mounting groove 2.The cross section of mounting groove 2 is the outer convex surfaces of three limit circular arcs, and the head cross section of the cross pricker sheet 4 of Wimet is identical with mounting groove 2 cross-sectional shapes and three limit circular arc inner concaves 3 of mutual coupling.Wimet cross pricker sheet inner concave depth B is 0.5mm, and groove width A is 0.5mm, and the size conforms Wimet cross pricker sheet 4 head intercalations of mounting groove 2 are installed to be needed.Wimet cross pricker sheet 4 is linked to be an integral body with drill body 1 by the mode of welding.
A kind of Wimet cross pricker sheet is used for the blast furnace opening and bores, comprise drill body 1 and the cross pricker sheet 4 of Wimet that is fixedly welded on the drill body 1, as shown in Figure 2, Wimet cross pricker sheet 4 as shown in Figure 3 and Figure 4, drill body 1 is provided with mounting groove 2, mounting groove 2 be in big outer tight mouthful of little groove, cross pricker sheet 4 nose shapes of Wimet and mutual coupling identical with mounting groove 2 cross-sectional shapes, the cross pricker sheet 3 head intercalations of Wimet are fixedly welded on the drill body in the mounting groove 2.The cross section of mounting groove 2 is the outer convex surfaces of three limit circular arcs, and the head cross section of the cross pricker sheet 4 of Wimet is identical with mounting groove 2 cross-sectional shapes and three limit circular arc inner concaves 3 of mutual coupling.The inner concave depth B is 4mm on the Wimet cross pricker sheet 4, and groove width A is 4mm, and the size conforms Wimet cross pricker sheet 4 head intercalations of mounting groove 2 are installed to be needed.Wimet cross pricker sheet 4 is linked to be an integral body with drill body 1 by the mode of welding.
Claims (5)
1. a Wimet cross pricker sheet blast furnace opening bores, comprise drill body and the cross pricker sheet of Wimet that is fixedly welded on the drill body, described drill body is provided with mounting groove, it is characterized in that: described mounting groove be in big outer tight mouthful of little groove, the cross pricker sheet of described Wimet head shape and mutual coupling identical with the mounting groove cross-sectional shape, the intercalation of the cross pricker sheet of described Wimet head is fixedly welded on mounting groove on the drill body.
2. Wimet cross pricker sheet blast furnace opening according to claim 1 bores, it is characterized in that: the bottom surface of described mounting groove internal surface is provided with convex surfaces, described mounting groove two sides are provided with symmetric convex surfaces, the end face of the cross pricker sheet of described Wimet head is provided with the inner concave with mounting groove bottom surface coupling, and the two sides of the cross pricker sheet of described Wimet head are respectively arranged with the inner concave with mounting groove two sides coupling.
3. Wimet cross pricker sheet blast furnace opening according to claim 2 bores, it is characterized in that: the convex surfaces of described mounting groove internal surface bottom surface is an arc surface, the convex surfaces of described mounting groove two sides is an arc surface, the inner concave of the cross pricker sheet of described Wimet head end face is an arc surface, and the inner concave of the two sides of the cross pricker sheet of described Wimet head is an arc surface.
4. Wimet cross pricker sheet blast furnace opening according to claim 3 bores, it is characterized in that: the bottom surface of described mounting groove internal surface and the angle of two sides are chamfering, and the angle of the cross pricker sheet of described Wimet head end face and two sides is the chamfering that is complementary with the mounting groove internal surface.
5. Wimet cross pricker sheet blast furnace opening according to claim 4 bores, it is characterized in that: the depth B of the arc surface of the two sides of the cross pricker sheet of described Wimet head is 0.5mm≤B≤4mm, width A is 0.5mm≤A≤4mm, and the size conforms Wimet cross pricker sheet head intercalation of described mounting groove is installed to be needed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205478642U CN201801531U (en) | 2010-09-29 | 2010-09-29 | Hard alloy cross drill sheet blast furnace tapping drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205478642U CN201801531U (en) | 2010-09-29 | 2010-09-29 | Hard alloy cross drill sheet blast furnace tapping drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801531U true CN201801531U (en) | 2011-04-20 |
Family
ID=43871046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205478642U Expired - Fee Related CN201801531U (en) | 2010-09-29 | 2010-09-29 | Hard alloy cross drill sheet blast furnace tapping drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704854A (en) * | 2012-05-30 | 2012-10-03 | 西北矿冶研究院 | Special-shaped alloy drill bit and tooth fixing process thereof |
| CN109136435A (en) * | 2018-09-30 | 2019-01-04 | 山东托普森金刚石钻头有限公司 | A kind of blast furnace casting mouth of a river perforating disjunctor cross formula drill bit and preparation method thereof |
-
2010
- 2010-09-29 CN CN2010205478642U patent/CN201801531U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704854A (en) * | 2012-05-30 | 2012-10-03 | 西北矿冶研究院 | Special-shaped alloy drill bit and tooth fixing process thereof |
| CN102704854B (en) * | 2012-05-30 | 2015-03-25 | 西北矿冶研究院 | Special-shaped alloy drill bit and tooth fixing process thereof |
| CN109136435A (en) * | 2018-09-30 | 2019-01-04 | 山东托普森金刚石钻头有限公司 | A kind of blast furnace casting mouth of a river perforating disjunctor cross formula drill bit and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |