CN207212278U - Taper hole spherical tooth drill bit - Google Patents
Taper hole spherical tooth drill bit Download PDFInfo
- Publication number
- CN207212278U CN207212278U CN201720938296.0U CN201720938296U CN207212278U CN 207212278 U CN207212278 U CN 207212278U CN 201720938296 U CN201720938296 U CN 201720938296U CN 207212278 U CN207212278 U CN 207212278U
- Authority
- CN
- China
- Prior art keywords
- taper surface
- taper
- drill bit
- bore bit
- main body
- 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.)
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Links
- 239000010802 sludge Substances 0.000 claims description 21
- 239000011435 rock Substances 0.000 description 13
- 238000005553 drilling Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of taper hole spherical tooth drill bit, including bore bit main body, the top of the bore bit main body is disposed with the first taper surface, the second taper surface from top to bottom；The angle of inclination of second taper surface is more than the first taper surface；Some perforations are respectively arranged with first taper surface, the second taper surface, carbide button is separately installed with some perforations.The utility model has the characteristics that service life is high, stability is good.
Description
Technical field
A kind of drilling tool is the utility model is related to, more specifically, it relates to a kind of taper hole spherical tooth drill bit.
Background technology
The bore bit digging instrument important as one is widely used in geology, metallurgy, coal, stone, railway, traffic, built
Build, Tunnel Lamp industry, bore bit includes Chisel bit, cross bore bit, X-type bore bit and button type according to different use ranges
Bore bit；Wherein Chisel bit is applied to the not high rock stratum of buzzer Drilling hardness, is easy to reconditioning；Cross bore bit and X
Type bore bit is applied under conditions of having greater impact work(rock drill, Drilling Fractured rock stratum and the strong rock stratum of corrosivity, anti-footpath
It is strong to corrosive power；Button type bore bit is under conditions of with greater impact work(rock drill, than sheet earth block bore bit strong applicability,
Cutting rate and life-span are high, and the pass dug out is relatively round etc..
However, finding in actual use, currently used bore bit, its structure lacks reasonably in terms of centering effect
Design, and then the undesirable phenomenon of centering effect be present, cause bore bit unstable during rock is pierced and cause to drill
Undesirable, situations such as bore bit is flexible.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of taper hole spherical tooth drill bit, have
The features such as service life is high, stability is good.
To achieve the above object, the utility model provides following technical scheme：
A kind of taper hole spherical tooth drill bit, including bore bit main body, the top of the bore bit main body are disposed with from top to bottom
One taper surface, the second taper surface；The angle of inclination of second taper surface is more than the first taper surface；First taper surface,
Some perforations are respectively arranged with two taper surfaces, carbide button is separately installed with some perforations.
Pass through above technical scheme：The top of bore bit main body uses the cloth tooth of Double-conical-surface, on the one hand bore bit is being pierced
During rock（Particularly when initial pierce）Good certralizing ability can be played, reduces the swing of bore bit,
So as to which the abrasion that bore bit is subject to also significantly reduces, avoid bore bit and bent during piercing, improve making for bore bit
Use the life-span；On the other hand, because bore bit swing is small, it pierces the speed of rock and is also greatly improved, so as to save
The power output of rig；Another further aspect, phenomena such as hole drilled out is in elliptical aperture, delthyrium, bent hole can be also avoided the occurrence of, from
And the difficulty of powder cleaning and explosive installation is reduced, improve efficiency of construction.
Preferably, the angle of inclination of first taper surface is 9~11 degree；The angle of inclination of second taper surface is 34
~36 degree.
Pass through above technical scheme：Set using above-mentioned angle, on the one hand can avoid because angle too small and caused by it is fixed
Heart effect is bad；On the other hand it can avoid causing carbide button to be too greatly inclined because angle is excessive, cause being subject to for carbide button
Lateral compression power is excessive and uneven deformation occurs；Another further aspect, carbide button are distributed in the first taper surface of above-mentioned angle,
On two taper surfaces, certain transition is formed in drilling, avoids the occurrence of the excessively coarse situation of the hole wall drilled out.
Preferably, the quantity of the perforation on first taper surface is at least 2.
Preferably, the quantity of the perforation on second taper surface is at least four.
Preferably, sludge groove, the sludge groove extension are additionally provided between two neighboring carbide button along the circumferential direction
To the axial plane of bore bit main body.
Pass through above technical scheme：Broken rock dust can rapidly be discharged by sludge groove, be avoided because accumulating too much
And bore bit is caused to pierce difficulty.
Preferably, apopore is offered in the sludge groove；The apopore connects with the intake tunnel in the middle part of bore bit main body
It is logical.
Pass through above technical scheme：Water under high pressure can be injected to intake tunnel, water under high pressure sprays to form high speed from apopore
Current, rapidly drain along sludge groove with rock dust.
Brief description of the drawings
Fig. 1 is the side view of taper hole spherical tooth drill bit in embodiment；
Fig. 2 is the side view of taper hole spherical tooth drill bit in embodiment；
Fig. 3 is along B-A revolved sectional view in Fig. 2；
Fig. 4 is along A-A revolved sectional view in Fig. 2.
Reference：1st, bore bit main body；11st, intake tunnel；2nd, bullet；21st, the first taper surface；22nd, the second taper surface；
3rd, perforation；4A, middle tooth；4B, heel teeth；5A, the first sludge groove；5B, the first auxiliary tank；6A, the second sludge groove；6B, the second auxiliary
Groove；7A, the first apopore；7B, the second apopore.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model
The mode of applying is not limited only to this.
Reference picture 1, Fig. 2, Fig. 3, the present embodiment provide a kind of taper hole spherical tooth drill bit, including bore bit main body 1, bore bit main body 1
Top integrally formed with the bullet 2 that upper end is big, lower end is small；It is disposed with from top to bottom in the upper end of the bullet 2
First taper surface 21, the second taper surface 22；Wherein, the angle of inclination of the second taper surface 22 is more than the first taper surface 21.Specific
During implementation, as a kind of preferred：The angle of inclination c of first taper surface 21 is 9~11 degree；The angle of inclination d of second taper surface 22
For 34~36 degree.
In addition, some perforations 3 are respectively arranged with the first taper surface 21, the second taper surface 22, in some perforations 3 respectively
Carbide button is installed, in following content, tooth 4A during the carbide button on the first taper surface 21 is referred to as, by the second taper surface 22
On carbide button be referred to as heel teeth 4B.In the specific implementation, as a kind of preferred embodiment：The number of perforation 3 on first taper surface 21
Measure as at least 2, the quantity of the perforation 3 on the second taper surface 22 is at least four；And then middle tooth 4A quantity is 2, side
Tooth 4B quantity is 4.Wherein, circumferencial directions of the middle tooth 4A along first conical surface is uniformly distributed, in 4 heel teeth 4B two-by-two one group be in
It is symmetrical arranged, is specifically, the heel teeth 4B and heel teeth 4B adjacent in second group in first group is relative to the several of the second taper surface 22
The angle a at what center is less than the angle b of two heel teeth 4B in same group relative to the geometric center of the second taper surface 22, wherein
When it is implemented, a is 75 degree, b is 105 degree.
Reference picture 2, Fig. 3, offer on the first taper surface 21 two be in inverted V-shaped the first sludge groove 5A, two first rows
The circumference of powder tank 5A and two middle tooth 4A along the first taper surface 21 is in equidistant alternate setting.Two the first sludge groove 5A distinguish slave phase
The second taper surface 22 is passed through among two adjacent heel teeth 4B and is extended on the axial plane of bore bit main body 1, and in the axle of bore bit main body 1
The first V-shaped auxiliary tank 5B is formed on face.In drilling, the rock dust drilled out by middle tooth 4A can be rapidly successively along first row
Powder tank 5A, the first auxiliary tank 5B discharge to the rear of bore bit main body 1.
Two circular arc side directions in the second fan-shaped sludge groove 6A, the second sludge groove 6A are offered on second taper surface 22
First taper surface 21；Two the second sludge groove 6A center line and two the first sludge groove 5A central axis；Second row powder
Groove 6A is extended on the axial plane of bore bit main body 1, and the second V-shaped auxiliary tank 6B is formed on the axial plane of bore bit main body 1.Boring
Kong Shi, the rock dust drilled out from heel teeth 4B can be rapidly successively along the second sludge groove 6A, the second auxiliary tank 6B to bore bit main body 1
Discharge at rear.
Referring to figs. 1 to Fig. 4, bore bit main body 1 is internally provided with intake tunnel 11, and first is provided with the first sludge groove 5A
Be provided with the second apopore 7B in apopore 7A, the second sludge groove 6A, first apopore 7A, the second apopore 7B with water inlet
Passage 11 connects.After water under high pressure is passed through to intake tunnel 11, it can be formed respectively in the first apopore 7A, the second apopore 7B
High-velocity flow, respectively to wash away the rock dust in the first sludge groove 5A, the second sludge groove 6A.In the specific implementation, the first water outlet
Hole 7A angle of inclination e is 15~17 degree, and the second apopore 7B angle of inclination f is 43~45 degree.
Claims (6)
1. a kind of taper hole spherical tooth drill bit, including bore bit main body (1), it is characterized in that, the top of the bore bit main body (1) is from top to bottom
It is disposed with the first taper surface (21), the second taper surface (22)；The angle of inclination of second taper surface (22) is more than first
Taper surface (21)；Some perforations (3), some perforations are respectively arranged with first taper surface (21), the second taper surface (22)
(3) carbide button is separately installed with.
2. taper hole spherical tooth drill bit according to claim 1, it is characterized in that, the angle of inclination of first taper surface (21) is
9~11 degree；The angle of inclination of second taper surface (22) is 34~36 degree.
3. taper hole spherical tooth drill bit according to claim 1, it is characterized in that, the perforation (3) on first taper surface (21)
Quantity be at least 2.
4. taper hole spherical tooth drill bit according to claim 1, it is characterized in that, the perforation (3) on second taper surface (22)
Quantity be at least four.
5. taper hole spherical tooth drill bit according to claim 1, it is characterized in that, two neighboring carbide button along the circumferential direction it
Between be additionally provided with sludge groove, the sludge groove is extended on the axial plane of bore bit main body (1).
6. taper hole spherical tooth drill bit according to claim 5, it is characterized in that, offer apopore in the sludge groove；It is described
Apopore connects with the intake tunnel (11) in the middle part of bore bit main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938296.0U CN207212278U (en) | 2017-07-31 | 2017-07-31 | Taper hole spherical tooth drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938296.0U CN207212278U (en) | 2017-07-31 | 2017-07-31 | Taper hole spherical tooth drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212278U true CN207212278U (en) | 2018-04-10 |
Family
ID=61814776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720938296.0U Active CN207212278U (en) | 2017-07-31 | 2017-07-31 | Taper hole spherical tooth drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212278U (en) |
-
2017
- 2017-07-31 CN CN201720938296.0U patent/CN207212278U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 318058 No. 4855 Shugang Avenue, Jinqing Town, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Zhejiang Planka Brazing Tool Co.,Ltd. Address before: 318058 No. 4855 Shugang Avenue, Jinqing Town, Luqiao District, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG PULANKA ROCK TOOLS Co.,Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Taizhou Shanhe Trading Co.,Ltd. Assignor: Zhejiang Planka Brazing Tool Co.,Ltd. Contract record no.: X2023330000877 Denomination of utility model: Cone hole ball tooth drill bit Granted publication date: 20180410 License type: Common License Record date: 20231124 |