CN204457447U - A kind of polycrystalline diamond inner concave shape drill bit - Google Patents
A kind of polycrystalline diamond inner concave shape drill bit Download PDFInfo
- Publication number
- CN204457447U CN204457447U CN201520084418.5U CN201520084418U CN204457447U CN 204457447 U CN204457447 U CN 204457447U CN 201520084418 U CN201520084418 U CN 201520084418U CN 204457447 U CN204457447 U CN 204457447U
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- CN
- China
- Prior art keywords
- cutting
- alloy
- drill body
- drill bit
- drill
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- 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
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Abstract
A kind of polycrystalline diamond inner concave shape drill bit, comprise: drill body, cutting edge, hollow drill body mouth, chip area, cutting alloy sword face, alloy blade, cutting teeth, drill body head arranges three cutting edges, three hollow drill body mouths are provided with in the middle of drill body, drill body has chip area, chip area is formed between three cutting edge rotational trajectories, drill edge top is smooth cutting face, frictional resistance during cutting can be reduced, make drill bit amplitude of fluctuation less than normal, strengthen job stability, Accelerating Removal drilling cuttings, improve stock-removing efficiency, cutting edge side is cutting alloy sword face, below is cutting teeth, cutting alloy sword face is provided with alloy blade, three cutting alloy sword faces are designed to containing four alloy blades respectively, five alloy blades, six alloy blades, alloy blade is poly-golden diamond formation, the alloy blade of multiple poly-golden diamond materials leaks outside, increase the sharp keen and abrasion resistance of drill bit, improve stock-removing efficiency.
Description
Technical field
The utility model relates to for exploiting drill bit field, colliery, is specially a kind of polycrystalline diamond inner concave shape drill bit.
Background technology
At underground coal mine, if drilling cuttings alluvial is too many in drill bit, can not discharge very well, be easy to just cause drill bit high temperature, and damage drill bit, have impact on the application life of drill bit, the drill bit of current use is difficult to held stationary in the course of the work, tool-face swings excessive, causes being easy in operating process bring infringement to drill bit, and brings potential safety hazard to staff.
Utility model content
The technical problem that the utility model solves is to provide a kind of polycrystalline diamond inner concave shape drill bit, to solve the problem proposed in above-mentioned background technology.
A kind of polycrystalline diamond inner concave shape drill bit, comprising: drill body, cutting edge, hollow drill body mouth, chip area, cutting alloy sword face, alloy blade, cutting teeth, described drill body head arranges three cutting edges, is provided with three hollow drill body mouths in the middle of drill body.
Described drill body has chip area, between three cutting edge portion rotational trajectories, forms chip area.
Described drill edge top is smooth cutting face, and cutting edge side is cutting alloy sword face, and below is cutting teeth.
Described cutting alloy sword face is provided with alloy blade, and three cutting alloy sword faces are designed to respectively containing four alloy blades, five alloy blades, six alloy blades.
Described alloy blade is poly-golden diamond formation.
Compared with prior art, the beneficial effects of the utility model are: the utility model structure is simple, be hollow spiral drilling bit, be made up of poly-golden diamond, abrasion resistance is good, and drill bit shiny surface can reduce frictional resistance during cutting, makes the amplitude of fluctuation of drill bit little, strengthen job stability, Accelerating Removal drilling cuttings, improves stock-removing efficiency, is easy to universal and uses.
Accompanying drawing explanation
Fig. 1 is front view schematic diagram of the present utility model.
Fig. 2 is top view schematic diagram of the present utility model.
Detailed description of the invention
In order to make actualizing technology means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
As shown in Fig. 1 ~ 2, a kind of polycrystalline diamond inner concave shape drill bit, comprise: drill body 1, cutting edge 2, hollow drill body mouth 3, chip area 4, cutting alloy sword face 5, alloy blade 6, cutting teeth 7, drill body 1 front end arranges three cutting edges 2, three hollow drill body mouths 3 are provided with in the middle of drill body 1, drill body 1 has chip area 4, chip area 4 is formed between three cutting edge 2 rotational trajectories, drill edge 2 top is smooth cutting face, frictional resistance during cutting can be reduced, make drill bit amplitude of fluctuation less than normal, strengthen job stability, Accelerating Removal drilling cuttings, improve stock-removing efficiency, cutting edge 2 side is cutting alloy sword face 5, below is cutting teeth 7, cutting alloy sword face 5 is provided with alloy blade 6, three cutting alloy sword faces 5 are designed to containing four alloy blades respectively, five alloy blades, six alloy blades, alloy blade 6 is polycrystalline diamond material formation, the alloy blade of multiple polycrystalline diamond materials leaks outside, increase the sharp keen and abrasion resistance of drill bit, improve stock-removing efficiency.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a polycrystalline diamond inner concave shape drill bit, comprise: drill body, cutting edge, hollow drill body mouth, chip area, cutting alloy sword face, alloy blade, cutting teeth, it is characterized in that: described drill body head arranges three cutting edges, in the middle of drill body, be provided with three hollow drill body mouths.
2. a kind of polycrystalline diamond inner concave shape drill bit according to claim 1, is characterized in that: described drill edge top is smooth cutting face, and cutting edge side is cutting alloy sword face, and below is cutting teeth.
3. a kind of polycrystalline diamond inner concave shape drill bit according to claim 1, it is characterized in that: described cutting alloy sword face is provided with alloy blade, three cutting alloy sword faces are designed to respectively containing four alloy blades, five alloy blades, six alloy blades.
4. a kind of polycrystalline diamond inner concave shape drill bit according to claim 1, is characterized in that: described alloy blade is poly-golden diamond formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520084418.5U CN204457447U (en) | 2015-02-01 | 2015-02-01 | A kind of polycrystalline diamond inner concave shape drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520084418.5U CN204457447U (en) | 2015-02-01 | 2015-02-01 | A kind of polycrystalline diamond inner concave shape drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457447U true CN204457447U (en) | 2015-07-08 |
Family
ID=53664349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520084418.5U Expired - Fee Related CN204457447U (en) | 2015-02-01 | 2015-02-01 | A kind of polycrystalline diamond inner concave shape drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457447U (en) |
-
2015
- 2015-02-01 CN CN201520084418.5U patent/CN204457447U/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: 20150708 Termination date: 20190201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |