CN205936408U - Toper anti -sticking bores drill bit - Google Patents
Toper anti -sticking bores drill bit Download PDFInfo
- Publication number
- CN205936408U CN205936408U CN201620931749.2U CN201620931749U CN205936408U CN 205936408 U CN205936408 U CN 205936408U CN 201620931749 U CN201620931749 U CN 201620931749U CN 205936408 U CN205936408 U CN 205936408U
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- China
- Prior art keywords
- drill bit
- taper
- bit body
- sticking
- cross
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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.)
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Abstract
The utility model provides a toper anti -sticking bores drill bit belongs to drill bit technical field, and the purpose is solved when passing through drill bit drilling at present, when appearing collapsing the hole condition, appears easily losing boring and bores the bigger technical problem of the degree of difficulty with moving back. Toper anti -sticking bores drill bit, including a plurality of drill bit cutting teeth (4), cone drill bit body (2) and a plurality of cutting tooth (3), a plurality of drill bit cutting teeth (4) equipartition is established in cone drill bit body (2) the one end that the cross section is the biggest, and the minimum one end of cone drill bit body (2) cross section is equipped with the internal thread hole of being connected with drilling rod (1), and a plurality of cutting tooth (3) sets up the back that just is located drill bit cutting teeth (4) on cone drill bit body (2) along the axis direction.
Description
Technical field
The utility model is related to bit technique field, more particularly, to a kind of taper anti-sticking drill bit.
Background technology
The efficient drilling technology of deep hole is one of key technology of coal mine gas drainage, and drilling depth decides gas pumping
Scope and efficiency.Because the condition of coal seam occurrence of each department is different, the complexity difference of coal seam deep well drilling is very big.Soft prominent
Coal output layer occupies significant proportion in China's minable coal seam, holes in this kind of coal seam, especially in the region that crustal stress is high, holds
Collapse hole phenomenon easily occurs.Existing drill bit, due to being provided with step between drill body and brill tooth, when collapse hole phenomenon, bores
Head is trapped in hole and bit freezing, be easily caused lose brill or move back brill difficulty than larger the problems such as.
Content of the invention
When the purpose of this utility model is to solve existing bit bore collapse hole situation, easily occurs losing brill and move back brill hardly possible
Spend larger technical problem, a kind of taper anti-sticking drill bit is provided.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of taper anti-sticking drill bit, including multiple Cutters, wherein, it also includes taper bit body and some
Individual cutting teeth, the plurality of Cutter is all laid in the maximum one end of taper bit body cross-section, taper bit body
The minimum one end in cross section is provided with the internal thread hole being connected with drilling rod, and several cutting teeths are arranged at taper bit in the axial direction
On body and be located at Cutter back.
Wherein, described cutting teeth be shaped as semicircle or zigzag.
The utility model adopts technique scheme, by arranging taper bit body, so that move back brill being easier.
In addition, by several cutting teeths are arranged on taper bit body, when collapse hole phenomenon occurs, this some cutting can be passed through
Tooth cuts the broken rubble blocking drill bit, thus facilitating drill bit to exit boring.Compared with background technology, the utility model has structure letter
Advantage that is single, convenient using reliability and can effectively preventing bit freezing.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
With reference to the accompanying drawings and examples the utility model is described in further detail.
As shown in figure 1, the taper anti-sticking drill bit in the present embodiment, including multiple Cutters 4, wherein, it also wraps
Include taper bit body 2 and several cutting teeths 3, the plurality of Cutter 4 is all laid in taper bit body 2 cross section
Maximum one end, the minimum one end in taper bit body 2 cross section is provided with the internal thread hole being connected with drilling rod 1, several cuttings
Tooth 3 is arranged on taper bit body 2 in the axial direction and is located at the back of Cutter 4.Taper bit body 2 cross section
The minimum diameter of one end is identical with the diameter of drilling rod 1.
Wherein, depending on the size of quantity cone shape drill body 2 of each column cutting teeth 3.
Wherein, described cutting teeth 3 be shaped as semicircle or zigzag.Specifically, it is shaped as semicircle when cutting teeth 3
During shape, the diameter of each column each semicircle cutting teeth 3 is from the minimum one end in the cross section of taper bit body 2 to cross section maximum
One end is gradually increased.
When using, the taper bit body 2 of taper anti-sticking drill bit is connected the utility model with drilling rod 1, and drilling rod 1 drives
Taper preventing sticking bit bore；When exiting, this taper anti-sticking drill bit exits along boring rotation.When collapse hole situation occurs, can
Cut the rubble of broken bit freezing with several cutting teeths 3 arranging by taper bit body 2, consequently facilitating drill bit exits boring.
Claims (2)
1. a kind of taper anti-sticking drill bit, including multiple Cutters (4) it is characterised in that it also includes taper bit originally
Body (2) and several cutting teeths (3), it is maximum that the plurality of Cutter (4) is all laid in taper bit body (2) cross section
One end, the minimum one end in taper bit body (2) cross section is provided with the internal thread hole being connected with drilling rod (1), and several cut
Tooth (3) is arranged on taper bit body (2) in the axial direction and is located at the back of Cutter (4).
2. taper anti-sticking drill bit according to claim 1 it is characterised in that described cutting teeth (3) be shaped as semicircle
Shape or zigzag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931749.2U CN205936408U (en) | 2016-08-24 | 2016-08-24 | Toper anti -sticking bores drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931749.2U CN205936408U (en) | 2016-08-24 | 2016-08-24 | Toper anti -sticking bores drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936408U true CN205936408U (en) | 2017-02-08 |
Family
ID=57952398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620931749.2U Active CN205936408U (en) | 2016-08-24 | 2016-08-24 | Toper anti -sticking bores drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869800A (en) * | 2017-03-15 | 2017-06-20 | 金陵科技学院 | A kind of anti-burying drill bit of ground |
| CN109837902A (en) * | 2019-01-18 | 2019-06-04 | 中交第一航务工程局有限公司 | A kind of application of hydraulic drill rig taper bit in processing steel-pipe pile base opening crimping |
-
2016
- 2016-08-24 CN CN201620931749.2U patent/CN205936408U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869800A (en) * | 2017-03-15 | 2017-06-20 | 金陵科技学院 | A kind of anti-burying drill bit of ground |
| CN109837902A (en) * | 2019-01-18 | 2019-06-04 | 中交第一航务工程局有限公司 | A kind of application of hydraulic drill rig taper bit in processing steel-pipe pile base opening crimping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |