CN105927158A - Portable-type drill bit of twist drill - Google Patents
Portable-type drill bit of twist drill Download PDFInfo
- Publication number
- CN105927158A CN105927158A CN201610262958.7A CN201610262958A CN105927158A CN 105927158 A CN105927158 A CN 105927158A CN 201610262958 A CN201610262958 A CN 201610262958A CN 105927158 A CN105927158 A CN 105927158A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drillstock
- drill
- auger
- portable
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims abstract description 18
- 239000002689 soil Substances 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012876 topography Methods 0.000 abstract description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a portable-type drill bit of a twist drill. The drill bit comprises a drillstock (1) which is provided with a screw blade (2) on the front side. The drill bit is characterized in that a spiral groove (3) is formed between the drillstock (1) and the screw blade (2), the front end of the drillstock (1) is provided with a drill point (4), the front end of the screw blade (2) is provided with a cutting edge (5), and the rear side of the drillstock (1) is provided with a rear side connecting drill rod (6). The portable-type drill bit is advantaged in that compared with a conventional small twist drill, drilling efficiency of the drilling tool is improved by 60%, and the drilling tool is light and handy, flexible, and easy to carry, total mass of the drill bit and supporting equipment is about 30 kg, and moving can be completed by just 2-3 persons, for construction in sections where site topography is complex and traffic is not convenient, drilling efficiency is obviously improved, and superiority of the drill bit would be more prominent, the drill bit is more accurate in seizing soil layer changes.
Description
Technical field
The present invention relates to reconnoitre field of engineering technology, particularly to the portable drill bit of auger.
Background technology
The engineering investigations such as the training of channel, stability of slope preventing and treating, water and soil conservation and soil materials field investigation are required for using hand-operated auger to hole, the auger used at present also exists use heaviness, Portable belt and matched equipment quality be not heavier, complicated, the construction in the location that has inconvenient traffic for site topography, rig probing needs to expend a large amount of human and material resources and financial resources because of dismounting, resettlement, the shortcoming of drilling efficiency, is difficult to the shortcomings such as assurance for soil layer change.So present stage urgent need wants a kind of auger light and handy, nimble, portable for use.
Summary of the invention
The invention aims to solve the auger that used of present stage also exist use heavy, not Portable belt and matched equipment quality heavier, be unfavorable for the shortcomings such as construction, and the portable drill bit of the auger proposed.
To achieve these goals, present invention employs following technical scheme:
The portable drill bit of auger, the drillstock of helical blade it is provided with on front side of including, it is characterised in that: form helicla flute between described drillstock 1 and helical blade, be provided with apex point in the front end of drillstock, it is provided with cutting edge, at the rear side jointed rod of drillstock in the front end of helical blade；
Longitudinally disposed centre bore in described drilling rod, the rear side of described drillstock is correspondingly arranged at centre bore；
The front end of described helical blade is provided with two cutting edges, and two cutting edges are symmetricly set on the both sides of described apex point, and the drift angle of described cutting edge is 110 ° 135 °.
On the basis of technique scheme, can there is a technical scheme further below:
The side of described drillstock connection corresponding with described drilling rod is cone bar.
The drift angle of described cutting edge is 118 °.
Described spiral fluted helical angle is 30 ° 60 °.
Described spiral fluted helical angle is 45 °.
Described apex point is conical structure.
It is an advantage of the current invention that: compared with this drilling tool bores with tradition minor spiral, drilling efficiency improves 60%, it not only have light and handy, nimble, the advantage such as be easy to carry, and its gross mass about 30kg with corollary equipment, resettlement only 23 people can complete, have inconvenient traffic location construction complicated for site topography, and drilling efficiency significantly improves, its superiority will be more prominent, and soil layer change is held more accurate by it.
Accompanying drawing explanation
Fig. 1 is the basic structure schematic diagram of the present invention.
Detailed description of the invention
In order to make the present invention clearer, describing this device in detail below in conjunction with accompanying drawing, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the portable drill bit of the auger that the present invention provides, the drillstock 1 of helical blade 2 it is provided with on front side of including, helicla flute 3 is formed between described drillstock 1 and helical blade 2, helical angle 3a of described helicla flute 3 is 30 ° 60 °, helicla flute 3 acts primarily as guiding and casting function, and this programme is preferably 45 °.
Being provided with apex point 4 in the front end of drillstock 1, for making drill bit more successfully pierce in soil layer, described apex point 4 is processed into conical structure.Be provided with two cutting edges 5 in the front end of described helical blade 2, two cutting edges 5 are symmetricly set on the both sides of described apex point 4, and cutwork directly undertaken by described cutting edge 5, and the drift angle of cutting edge 5 is 110 ° 135 °, and this programme preferably angle is 118 °.
Rear side at drillstock 1 connects the drilling rod 6 that hard alloy is made, longitudinally disposed centre bore 6a it is provided with at the axis of described drilling rod 6, the rear side of described drillstock 1 is correspondingly arranged at centre bore 6a, the side of described drillstock 1 connection corresponding with described drilling rod 6 is cone bar, the drillstock position polishing processed is thin and drilling rod internal diameter retains about 2 3mm gaps, reinforcement of weld after drillstock 1 and centre bore 6a connection, is additionally provided with external screw thread 6b in the outside of drilling rod 6 opposite side.
Operation principle: under the effect of revolving force, drillstock 1 rotates with vertical shaft, moves axially downwards simultaneously.Soil is cut under the moment of torsion and responsive to axial force of drillstock 1, is raveled under the extruding and centrifugal action of helical blade 2, forms soil stream and presses to cheat wall, simultaneously along helicla flute 3 ascending motion to earth's surface.When soil stream moves to, without time at the wall stop of hole, crush due to centrifugal action and thrown around hole, complete drilling process.
Owing to the every footage per round trip of hand-operated auger is less, execute brill personnel and according to creeping into complexity preliminary judgement soil layer situation of change and brill can be carried in time, this would be even more beneficial to technical staff and more accurately holds soil layer change, when entering sandy soil and gravelly clay layer executes brill, soil layer mutated site can be judged earlier according to " friction " sound between drill bit and rock.
Claims (6)
1. the portable drill bit of auger, the drillstock (1) of helical blade (2) it is provided with on front side of including, it is characterized in that: between described drillstock (1) and helical blade (2), form helicla flute (3), it is provided with apex point (4) in the front end of drillstock (1), it is provided with cutting edge (5), at the rear side jointed rod (6) of drillstock (1) in the front end of helical blade (2)；
Longitudinally disposed centre bore (6a) in described drilling rod (6), the rear side of described drillstock (1) is correspondingly arranged at centre bore (6a)；
The front end of described helical blade (2) is provided with two cutting edges (5), and two cutting edges (5) are symmetricly set on the both sides of described apex point (4), and the drift angle of described cutting edge (5) is 110 ° 135 °.
The portable drill bit of auger the most according to claim 1, it is characterised in that: the side of described drillstock (1) connection corresponding with described drilling rod (6) is cone bar.
The portable drill bit of auger the most according to claim 1, it is characterised in that: the drift angle of described cutting edge (5) is 118 °.
The portable drill bit of auger the most according to claim 1, it is characterised in that: the helical angle (3a) of described helicla flute (3) is 30 ° 60 °.
The portable drill bit of auger the most according to claim 4, it is characterised in that: the helical angle (3a) of described helicla flute (3) is 45 °.
The portable drill bit of auger the most according to claim 1, it is characterised in that: described apex point (4) is conical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262958.7A CN105927158A (en) | 2016-04-26 | 2016-04-26 | Portable-type drill bit of twist drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262958.7A CN105927158A (en) | 2016-04-26 | 2016-04-26 | Portable-type drill bit of twist drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105927158A true CN105927158A (en) | 2016-09-07 |
Family
ID=56837284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610262958.7A Pending CN105927158A (en) | 2016-04-26 | 2016-04-26 | Portable-type drill bit of twist drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927158A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105625A (en) * | 1993-11-12 | 1995-07-26 | 希尔蒂股份公司 | Drilling tool |
| CN2727378Y (en) * | 2004-09-10 | 2005-09-21 | 中铁工程机械研究设计院 | Screw pile forming bit |
| CN2849120Y (en) * | 2005-09-27 | 2006-12-20 | 中国人民解放军63983部队 | Drill bar |
| CN201165848Y (en) * | 2008-01-31 | 2008-12-17 | 中国热带农业科学院农业机械研究所 | Hole digger drill head |
| CN201579852U (en) * | 2009-12-01 | 2010-09-15 | 上海华灵工具厂 | Inverted conical woodworking spiral drill |
| CN202850869U (en) * | 2012-11-13 | 2013-04-03 | 永康市威力园林机械有限公司 | Ground auger bit |
-
2016
- 2016-04-26 CN CN201610262958.7A patent/CN105927158A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1105625A (en) * | 1993-11-12 | 1995-07-26 | 希尔蒂股份公司 | Drilling tool |
| CN2727378Y (en) * | 2004-09-10 | 2005-09-21 | 中铁工程机械研究设计院 | Screw pile forming bit |
| CN2849120Y (en) * | 2005-09-27 | 2006-12-20 | 中国人民解放军63983部队 | Drill bar |
| CN201165848Y (en) * | 2008-01-31 | 2008-12-17 | 中国热带农业科学院农业机械研究所 | Hole digger drill head |
| CN201579852U (en) * | 2009-12-01 | 2010-09-15 | 上海华灵工具厂 | Inverted conical woodworking spiral drill |
| CN202850869U (en) * | 2012-11-13 | 2013-04-03 | 永康市威力园林机械有限公司 | Ground auger bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
|
| RJ01 | Rejection of invention patent application after publication |