CN202249779U - Drill bit - Google Patents
Drill bit Download PDFInfo
- Publication number
- CN202249779U CN202249779U CN201120304743XU CN201120304743U CN202249779U CN 202249779 U CN202249779 U CN 202249779U CN 201120304743X U CN201120304743X U CN 201120304743XU CN 201120304743 U CN201120304743 U CN 201120304743U CN 202249779 U CN202249779 U CN 202249779U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- bore bit
- shaped
- cutter heads
- cutter head
- 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
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- Earth Drilling (AREA)
Abstract
The utility model discloses a drill bit including a drill bit base, the top part of the drill bit base is connected to a drill bench, three cutter heads are arranged on the drill bench top, the three cutter heads form to a three-blade shape, and the top parts of the three cutter heads are formed to a wave-like shape respectively. The drill bit provided is simple in structure and is easy to realize, furthermore, the drill bit provided improves the drilling effect of the drill bit and prolongs the service lifetime of the drill bit.
Description
Technical field
The utility model relates to mining fitting field, is specially a kind of bore bit.
Background technology
Mining is the important means that realizes collection of resources, and wherein coal mining is to obtain resource indispensable activity in production in colliery in the modern energy industry.The bore bit that arrives commonly used is contained in the drill steel front end in coal mining, and in order to the mace bit rock drilling, the bore bit cutter head top of prior art is the pinnacle shape, and is easy to wear during use, and for the bigger rock machining weak effect of hardness.
The utility model content
The utility model purpose provides a kind of bore bit, and is easy to wear to solve the prior art bore bit, the problem of Drilling weak effect.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of bore bit; Comprise the bore bit seat; It is characterized in that: said bore bit seat top is connected with the pricker platform that is shaped to one with the bore bit seat, and said pricker platform table top is provided with three cutter heads, and connection is shaped to one formation tri-lobed to three cutter heads end separately at pricker platform center; Center, three cutter head junctions has through hole, and three cutter head tops are shaped to wavy.
The utility model is simple in structure, is easy to realize.The cutter head structure of tri-lobed can improve the bore bit radial strength effectively, and while cutter head top is shaped to wavy, the life-span that makes that can improve cutter head, and strengthen the Drilling effect of cutter head for the bigger rock of hardness.The utility model has improved the Drilling effect of bore bit, the application life of also having improved bore bit.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1.A kind of bore bit; Comprise bore bit seat 1; Bore bit seat 1 top is connected with the pricker platform 2 that is shaped to one with bore bit seat 1, and pricker platform 2 table tops are provided with 3, three cutter heads 3 of three cutter heads end separately, and connection is shaped to one formation tri-lobed at pricker platform 2 centers; Center, three cutter head 3 junctions has through hole 4, and three cutter head 3 tops 5 are shaped to wavy.
Claims (1)
1. bore bit; Comprise the bore bit seat; It is characterized in that: said bore bit seat top is connected with the pricker platform that is shaped to one with the bore bit seat, and said pricker platform table top is provided with three cutter heads, and connection is shaped to one formation tri-lobed to three cutter heads end separately at pricker platform center; Center, three cutter head junctions has through hole, and three cutter head tops are shaped to wavy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120304743XU CN202249779U (en) | 2011-08-22 | 2011-08-22 | Drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120304743XU CN202249779U (en) | 2011-08-22 | 2011-08-22 | Drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249779U true CN202249779U (en) | 2012-05-30 |
Family
ID=46111038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120304743XU Expired - Fee Related CN202249779U (en) | 2011-08-22 | 2011-08-22 | Drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249779U (en) |
-
2011
- 2011-08-22 CN CN201120304743XU patent/CN202249779U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |