CN210560527U - Combined type blast furnace opening drill bit - Google Patents
Combined type blast furnace opening drill bit Download PDFInfo
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- CN210560527U CN210560527U CN201920812291.2U CN201920812291U CN210560527U CN 210560527 U CN210560527 U CN 210560527U CN 201920812291 U CN201920812291 U CN 201920812291U CN 210560527 U CN210560527 U CN 210560527U
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- drill
- drill bit
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- blast furnace
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Abstract
The utility model relates to a combined type blast furnace opening drill bit, which comprises a drill rod and a drill bit which are connected into a whole, wherein the drill bit comprises three annular and uniformly distributed drill teeth, a cutter body is coated in each drill tooth, the cutter body is of a rectangular block structure, and one edge of the cutter body upwards extends out of the upper surface of each drill tooth; the utility model discloses with the cutter body cladding of drill bit in the inside of boring the tooth, the side of cutter body and the seamless compound of boring the tooth avoid the cutter body to melt with the metal of boring the tooth junction, can improve the life-span of drill bit, can realize the serialization operation.
Description
Technical Field
The utility model relates to the technical field of blast furnace opening drill bits, in particular to a combined type blast furnace opening drill bit.
Background
As an industrial support, the steel industry in China is always vigorously developed, large-scale ironmaking blast furnaces in China exceed 90 and have a total volume of about 12 ten thousand cubic meters, the price competition of steel products is increasingly severe due to the domestic market shrinkage, the production cost of iron per ton is reduced, the survival of enterprises is concerned, and the blast furnace is the first thing which must be paid attention to by various steel plants.
The manufacturers of the blast furnace taphole drill in China are nearly hundreds of families, and the product forms are various: and meanwhile, because the quality difference of the blast furnace drill bits is obvious due to the difference of the design and the adopted materials (the drill body steel and the cutting head adopt hard alloy) of the drill bits and the assembly process, the blast furnace drill bits bring about a plurality of problems for the continuous operation of blast furnace tapping.
Most of the existing drill bits are formed by embedding a cutter body on drill teeth, even the existing drill bits are fixed by screws, rivets or other connecting modes, gaps exist between the cutter body and the drill teeth, high-temperature molten iron easily melts the drill teeth or the surfaces of the cutter body at the joint of the cutter body and the drill teeth, the loss is high, the service life is short, and continuous operation cannot be achieved.
Therefore, a novel blast furnace drill bit which can meet the requirements of continuity, long service life and low consumption is developed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a combined type blast furnace opening drill bit.
The technical scheme of the utility model is that: the utility model provides a combined type blast furnace opening drill bit, includes the drilling rod and the drill bit of integrated connection, the drill bit includes the brill tooth of three annular equipartition, it has the cutter body to cover in the brill tooth, the cutter body is the rectangular block structure, an edge of cutter body upwards stretches out the upper surface of brill tooth.
Preferably, the upper surface of the drill tooth is an arc-shaped cladding surface, the two sides of the cutter body are symmetrical, and the side surface of the cutter body and the drill tooth are seamlessly compounded together.
Preferably, the drill bit still includes the junk slot of three annular equipartitions, the junk slot is located two drill between the tooth, the bottom of junk slot is the inclined plane that leans out gradually from the top down.
Preferably, one end of the drill rod is provided with a connecting internal thread, the other end of the drill rod is connected with the drill bit in an integrated mode and is provided with a vent hole, and the center of the drill bit is of a triangular structure and is communicated with the vent hole.
Preferably, the bottom inclined plane of the chip groove is provided with a branch air hole communicated with the vent hole.
The utility model has the advantages that:
the utility model discloses with the cutter body cladding of drill bit in the inside of boring the tooth, the side of cutter body and the seamless compound of boring the tooth avoid the cutter body to melt with the metal of boring the tooth junction, can improve the life-span of drill bit, can realize the serialization operation.
The center of drill bit sets up the air channel of triangle-shaped structure, and the cross sectional area of air channel is greater than the cross sectional area of ventilation hole, can stay some cuttings and slag accumulations in the air channel, avoids blockking up the ventilation hole.
The bottom of the chip groove is a slope which gradually inclines outwards from top to bottom, so that cutting chips can be smoothly discharged.
Drawings
FIG. 1 is a front view of a blast furnace open hole drill;
FIG. 2 is a schematic top view of a blast furnace open-end drill;
FIG. 3 is a schematic bottom view of the blast furnace open drill;
in the figure: 1. a drill stem; 1-1, vent holes; 2. a drill bit; 2-1, drilling teeth; 2-1-1, coating; 2-2, a cutter body; 2-3, a chip groove; 2-4, branch air holes; 2-5, a vent groove.
Detailed Description
The specific implementation mode of the utility model is shown in figures 1-3:
a combined type blast furnace opening drill bit 2 comprises a drill rod 1 and a drill bit 2 which are integrally connected, the drill bit 2 comprises three drill teeth 2-1 which are uniformly distributed in an annular mode and protrude outwards, a cutter body 2-2 is wrapped in the drill teeth 2-1, the cutter body 2-2 is of a rectangular block structure, one edge of the cutter body 2-2 extends upwards out of the upper surface of the drill teeth 2-1, the upper surface of the drill teeth 2-1 is an arc-shaped wrapping surface 2-1-1, the two sides of the cutter body 2-2 are symmetrical, and the side faces of the cutter body 2-2 and the drill teeth 2-1 are combined together in a seamless mode.
The utility model discloses with the cutter body 2-2 cladding of drill bit 2 in the inside of boring tooth 2-1, the side of cutter body 2-2 and the seamless compound of boring tooth 2-1 avoid the cutter body 2-2 to melt with the metal of boring tooth 2-1 junction, can improve the life-span of drill bit 2, can realize serialization operation.
The utility model discloses well drilling rod 1's one end is equipped with the connection internal thread, the other end and drill bit 2 body coupling and be equipped with ventilation hole 1-1, the center of drill bit 2 is triangle-shaped structure and 2-5 with the air channel of ventilation hole 1-1 intercommunication, the inner wall of air channel 2-5 is the medial surface of boring tooth 2-1, drill bit 2 still includes the chip groove 2-3 of three annular equipartition, chip groove 2-3 is located two and bores between the tooth 2-1, the bottom of chip groove 2-3 is the inclined plane that leans out gradually from the top down, chip groove 2-3's bottom inclined plane is equipped with the branch wind hole 2-4 with ventilation hole 1-1 intercommunication.
The cross-sectional area of the vent groove 2-5 on the drill bit 2 is larger than that of the vent hole 1-1, so that cutting chips and slag can be accumulated in the vent groove 2-5, the vent hole 1-1 is prevented from being blocked, and the cutting chips can be smoothly discharged by the inclined surface of which the bottom of the chip discharge groove 2-3 is gradually inclined outwards from top to bottom.
Claims (5)
1. The utility model provides a combined type blast furnace opening drill bit, includes drilling rod and the drill bit of body coupling, its characterized in that: the drill bit comprises three drill teeth which are uniformly distributed in an annular mode, a cutter body is coated in each drill tooth, the cutter body is of a rectangular block structure, and one edge of each cutter body upwards extends out of the upper surface of each drill tooth.
2. The composite blast furnace open-hole drill bit according to claim 1, wherein: the upper surface of the drill tooth is an arc-shaped cladding surface, the two sides of the cutter body are symmetrical, and the side surface of the cutter body and the drill tooth are seamlessly compounded together.
3. The composite blast furnace open-hole drill bit according to claim 2, wherein: the drill bit still includes the chip groove of three annular equipartition, the chip groove is located two bore between the tooth, the inclined plane that leans out is gradually from the top down in the bottom of chip groove.
4. The composite blast furnace open-hole drill bit according to claim 3, characterized in that: the drill rod is characterized in that one end of the drill rod is provided with a connecting internal thread, the other end of the drill rod is connected with the drill bit in an integrated mode and is provided with a ventilation hole, and the center of the drill bit is of a triangular structure and is communicated with a ventilation groove of the ventilation hole.
5. The composite blast furnace open-hole drill bit according to claim 4, wherein: and a branch air hole communicated with the air vent is formed in the bottom inclined plane of the chip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812291.2U CN210560527U (en) | 2019-05-31 | 2019-05-31 | Combined type blast furnace opening drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812291.2U CN210560527U (en) | 2019-05-31 | 2019-05-31 | Combined type blast furnace opening drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210560527U true CN210560527U (en) | 2020-05-19 |
Family
ID=70635325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920812291.2U Active CN210560527U (en) | 2019-05-31 | 2019-05-31 | Combined type blast furnace opening drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210560527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253240A (en) * | 2019-05-31 | 2019-09-20 | 新乡市金飞机械加工有限公司 | A kind of blast furnace opening drill bit and manufacturing method |
| CN113523742A (en) * | 2021-07-05 | 2021-10-22 | 桂林市中锐特机械制造有限责任公司 | Manufacturing method of T-shaped wear-resistant layer drill bit for blast furnace tapping |
-
2019
- 2019-05-31 CN CN201920812291.2U patent/CN210560527U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110253240A (en) * | 2019-05-31 | 2019-09-20 | 新乡市金飞机械加工有限公司 | A kind of blast furnace opening drill bit and manufacturing method |
| CN110253240B (en) * | 2019-05-31 | 2024-02-23 | 新乡市金飞机械加工有限公司 | Blast furnace opening drill bit and manufacturing method |
| CN113523742A (en) * | 2021-07-05 | 2021-10-22 | 桂林市中锐特机械制造有限责任公司 | Manufacturing method of T-shaped wear-resistant layer drill bit for blast furnace tapping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210701 Address after: 453000 No.298 Duancun, Hongmen Town, Hongqi District, Xinxiang City, Henan Province Patentee after: Xinxiang Jin Aircraft Machinery Processing Co.,Ltd. Patentee after: Xinxiang Jiefeng Machinery Co.,Ltd. Address before: 453000 No.298 Duancun, Hongmen Town, Hongqi District, Xinxiang City, Henan Province Patentee before: Xinxiang Jin Aircraft Machinery Processing Co.,Ltd. |
|
| TR01 | Transfer of patent right |