CN202249785U - Internally convex four-wing plug bit - Google Patents
Internally convex four-wing plug bit Download PDFInfo
- Publication number
- CN202249785U CN202249785U CN2011203325793U CN201120332579U CN202249785U CN 202249785 U CN202249785 U CN 202249785U CN 2011203325793 U CN2011203325793 U CN 2011203325793U CN 201120332579 U CN201120332579 U CN 201120332579U CN 202249785 U CN202249785 U CN 202249785U
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- CN
- China
- Prior art keywords
- wing
- smear metal
- plane
- drill bit
- cutting
- 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
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Abstract
The utility model discloses an internally convex four wing plug bit, which comprises a drill bit body (1), four cutting wings (2) and diamond composite sheets (3) and is characterized in that every two cutting wings are one group, the two groups of cutting wings are installed symmetrically relative to the axle center of the drill bit body (1), and the two groups of cutting wings are vertically arranged; the diamond composite sheets (3) are installed on the cutting wings (2), and single or multiple diamond composite sheets can be installed on each cutting wing (2); and the plane, between the cutting wings (2), of the drill bit body (1) is longer than a drill shank plane (5) of the drill bit body (1), and an angle of 10-15 degrees is formed between the two planes. According to the utility model, the four cutting wings are symmetrically arranged, thus the problem that the pillar at the center of the traditional drill bit is weak is solved, and the internally convex four wing plug bit can normally work while cutting soft and hard rock; the plane, between the cutting wings, of the drill bit body is longer than the drill shank plane of the drill bit body, thus the drilling footage efficiency during hard-rock drilling is effectively improved, the life of the internally convex four wing plug bit is prolonged and the internally convex four wing plug bit is more wear-resistant.
Description
Technical field
The utility model relates to a kind of boring tool, is specifically related to a kind of convex four wing borehole bits.
Background technology
Gas discharge in mine creeps into, visits the water hole and creeps into geological prospecting, engineering exploration and creep into common use diamond compact bit; Diamond compact belongs to nearly ten years novel superhard materials of promoting the use of; Its top layer is a diamond layer, and bottom is a carbide alloy, forms in the HTHP pressed.Diamond compact is as the cutting wing, and the vacancy of carbide alloy and diamond has significantly improved drilling depth efficient before having filled up;
What in above-mentioned engineering is crept into, use always is indent three wings borehole bit, three wings in edge, and the center is recessed, and two pillars are arranged; Running into incompetent bed can operate as normal, but when creeping into hard rock, drilling depth is very slow; Must strengthen pump pressure pump amount and rotating speed ability operate as normal, but, very easily cause first breakage because the center pillar has carried not too big pump pressure pump amount and too hard rock; And three wings of outer rim are when continuing to creep into, and damaged center can produce the rock core post, and causing can't drilling depth.
The utility model content
For addressing the above problem, the utility model provides a kind of convex four wing borehole bits, all can operate as normal in the soft or hard rock stratum.
For achieving the above object, the technological means that the utility model adopts is a kind of convex four wing borehole bits; Comprise drill body, the smear metal wing, diamond compact; The said smear metal wing is provided with four, with drill body axle center symmetry group and group vertical arrangement is installed for two one group; Said diamond compact is installed on the smear metal wing, but on each smear metal wing also multi-disc of monolithic can be installed; Drill body plane between the said smear metal wing is longer than drill body drillstock plane, and angulation is 10～15 degree between the two.
The beneficial effect of the utility model is: four smear metal wing symmetric arrays have solved the weak problem of conventional drill center pillar, and smear metal soft or hard rock is the ability operate as normal all; Change the drill body plane between the conventional drill smear metal wing into present length than drill body drillstock plane weak point, and become 10～15 degree angles, effectively raise drilling depth efficient and life-span when hard-rock boring, make drill bit more wear-resisting.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
The front view of Fig. 1 the utility model,
The vertical view of Fig. 2 the utility model.
The specific embodiment
Like Fig. 1, a kind of convex four wing borehole bits shown in 2, comprise drill body 1, the smear metal wing 2, diamond compact 3, the said smear metal wing 2 is provided with four, with drill body 1 axle center symmetry group and group vertical arrangement is installed for two one group; Said diamond compact 3 is installed on the smear metal wing 2; But also multi-disc of monolithic can be installed on each smear metal wing 2; In this example on preferred one group of smear metal wing 21 each smear metal wing 2 be provided with four, and each smear metal wing 2 is provided with two on another vertical with this group group smear metal wing 22; Drill body 1 plane 4 between the said smear metal wing 2 is longer than drill body 1 drillstock 5 planes, and according to the difference of rock stratum hardness, angulation is 10～15 degree between the two, preferred 12 degree in this example, and footage per bit and life-span are better.When using the utility model drill bit to creep into, no matter run into the soft or hard rock stratum, it is all normal work, and the drilling depth efficient of working improves greatly, and bit life doubles than conventional drill.
Claims (3)
1. convex four wing borehole bits comprise drill body (1), the smear metal wing (2), diamond compact (3), and it is characterized in that: the said smear metal wing (2) is provided with four, with drill body (1) axle center symmetry group and group vertical arrangement are installed for two one group; Said diamond compact (3) is installed on the smear metal wing (2), each smear metal wing (2) but on also multi-disc of monolithic can be installed; Drill body (1) plane (4) between the said smear metal wing (2) is longer than drill body (1) drillstock (5) plane, and angulation is 10～15 degree between the two.
2. convex four wing borehole bits according to claim 1; It is characterized in that: one group of smear metal wing (21) of said symmetry is gone up each smear metal wing (2) four diamond compacts (3) is set, and another group smear metal wing (22) vertical with this group gone up each smear metal wing (2) two diamond compacts (3) are set.
3. convex four wing borehole bits according to claim 1 is characterized in that: drill body (1) plane (4) between the said smear metal wing (2) is 12 degree with drill body (1) drillstock plane (5) angulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203325793U CN202249785U (en) | 2011-09-07 | 2011-09-07 | Internally convex four-wing plug bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203325793U CN202249785U (en) | 2011-09-07 | 2011-09-07 | Internally convex four-wing plug bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249785U true CN202249785U (en) | 2012-05-30 |
Family
ID=46111044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203325793U Expired - Fee Related CN202249785U (en) | 2011-09-07 | 2011-09-07 | Internally convex four-wing plug bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052407A (en) * | 2017-02-15 | 2017-08-18 | 洛阳恒诺锚固技术有限公司 | A kind of end face cross hard alloy cutting drill head with symmetric windows |
-
2011
- 2011-09-07 CN CN2011203325793U patent/CN202249785U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052407A (en) * | 2017-02-15 | 2017-08-18 | 洛阳恒诺锚固技术有限公司 | A kind of end face cross hard alloy cutting drill head with symmetric windows |
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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: 20140907 |
|
| EXPY | Termination of patent right or utility model |