CN109989713A - A kind of bidirectional screw drill bit - Google Patents
A kind of bidirectional screw drill bit Download PDFInfo
- Publication number
- CN109989713A CN109989713A CN201711494717.6A CN201711494717A CN109989713A CN 109989713 A CN109989713 A CN 109989713A CN 201711494717 A CN201711494717 A CN 201711494717A CN 109989713 A CN109989713 A CN 109989713A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- interior
- pipe shaft
- outer cylindrical
- top cover
- 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
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 30
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005065 mining Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 239000007787 solid Substances 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
-
- 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
- E21B12/00—Accessories for drilling tools
- E21B12/06—Mechanical cleaning devices
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 discloses a kind of bidirectional screw drill bits, including top cover, outer cylindrical drill bit and interior tubular drill bit, outer cylindrical drill bit is internally provided with interior tubular drill bit, side scraper plate is provided on the side wall of interior drill bit pipe shaft, the bottom of shaft link block at the top of the second fixed screw and interior drill bit pipe shaft by being fixedly connected.This bidirectional screw drill bit, side scraper plate is provided on the outer wall of interior tubular drill bit, it is in contact with the inner wall of outer drill bit pipe shaft, when rotation, side scraper plate effectively scrapes the soil on outer cylindrical drill bit inner wall, it avoids between outer cylindrical drill bit and interior tubular drill bit because soil is excessive influences rotation the problem of and the problem of of abrasion, considerably increase the service life of outer cylindrical drill bit and interior tubular drill bit, the direction of rotation of outer cylindrical drill bit and interior tubular drill bit is opposite, realize bidirectional rotation, bidirectional rotation makes mining effect more preferable, soil crushing effect is more preferable, drill bit is set to be not easy adhesion soil, to keep the clean and tidy of drill bit.
Description
Technical field
The present invention relates to bit technique field, specially a kind of bidirectional screw drill bit.
Background technique
Rotary digging drill bit is a kind of construction technology of pore-forming operation in suitable building foundation engineering.Be widely used in urban construction,
The ground foundations construction work such as highway bridge, skyscraper, cooperates different drilling tools, is adapted to dry type (short spiral) or wet type (revolution
Bucket) and rock stratum (rock core drill) pore-forming operation, rotary drilling rig have installed power is big, output torque is big, axial compressive force is big, motor-driven
Flexibly, construction efficiency height and multifunctional characteristics.Rotary drilling rig adapts to the soil-geological condition of China's most area, use scope
Extensively, bridge construction, the use of the engineerings such as tall building foundation plinth can be met substantially.Currently, rotary drilling rig be widely popularized in
Various Grouting Pile Engineering of Drilling Hole.Therefore technically inquire into common plain construction technology to the preparation of construction of rotary drilling rig has
Highly important meaning.When construction, different drill bits is selected according to different soil, geological conditions, but drill bit is when in use,
Single direction rotation makes inside be easily stained with the drill bit of soil, especially tubular, this causes deleterious effect to the use of drill bit,
Simultaneously but also mining effect weakens.
Summary of the invention
The purpose of the present invention is to provide a kind of bidirectional screw drill bits, have the characteristics that bidirectional rotation, solve existing skill
The problems in art.
To achieve the above object, the invention provides the following technical scheme: a kind of bidirectional screw drill bit, including top cover, outer cylinder
Shape drill bit and interior tubular drill bit, the outer cylindrical drill bit include outer drill bit pipe shaft, the small drill bit of fixed screw holes and outer cylinder bottom, institute
It states and is provided with fixed screw holes on the side wall of outer drill bit pipe shaft, the bottom of the outer drill bit pipe shaft is provided with outer cylinder bottom bradawl
Head is provided with top cover at the top of the outer drill bit pipe shaft, and the bottom of the top cover is provided with connecting plate, is arranged on the connecting plate
There is the first fixed screw, first fixed screw is fixedly connected through connecting plate with the fixed screw holes on outer drill bit pipe shaft,
The outer cylindrical drill bit is internally provided with interior tubular drill bit, and the interior tubular drill bit includes interior drill bit pipe shaft, side scraper plate and interior
Cylinder bottom small drill bit is provided with side scraper plate on the side wall of the interior drill bit pipe shaft, in the bottom of the interior drill bit pipe shaft is provided with
Cylinder bottom small drill bit, the interior drill bit pipe shaft are located at the bottom of top cover, and the top cover is internally provided with internal fixed plate, described
It is provided with motor fixing plate in the middle part of internal fixed plate, motor, the bottom of the motor are fixedly installed on the motor fixing plate
Portion is fixedly installed with shaft link block, and the bottom of the shaft link block passes through the top of the second fixed screw and interior drill bit pipe shaft
It is fixedly connected.
Preferably, the side scraper plate is in contact with the inner wall of outer drill bit pipe shaft.
Preferably, the motor is fixedly mounted on the center of inside of top cover.
Preferably, the setting angle of the side scraper plate is identical as the setting angle of the small drill bit in inner cylinder bottom.
Preferably, the direction of rotation of the outer cylindrical drill bit and interior tubular drill bit is opposite.
Preferably, the top of the top cover is fixedly connected with motor.
Compared with prior art, beneficial effects of the present invention are as follows:
This bidirectional screw drill bit, the inside of outer cylindrical drill bit are socketed with inner cylinder shape drill bit, are provided on the outer wall of interior tubular drill bit
The side wall of side scraper plate, side scraper plate and interior drill bit pipe shaft forms angle, is in contact with the inner wall of outer drill bit pipe shaft, in interior tubular drill bit
When rotation, side scraper plate can effectively be scraped the soil on outer cylindrical drill bit inner wall, to guarantee outer cylindrical drill bit and inner cylinder
Clean between both shape drill bits gap, avoiding influences rotation because soil is excessive between outer cylindrical drill bit and interior tubular drill bit
The problem of, abrasion caused by also avoiding outer cylindrical drill bit and interior tubular drill bit due to soil is excessive considerably increases outer cylindrical
The direction of rotation of the service life of drill bit and interior tubular drill bit, outer cylindrical drill bit and interior tubular drill bit is on the contrary, realize bidirectional rotary
Turn, bidirectional rotation makes mining effect more preferable, and soil crushing effect is more preferable, so that drill bit is not easy adhesion soil, to keep drill bit
It is clean and tidy.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention；
Fig. 2 is that outer cylindrical drill bit of the invention and interior tubular drill sleeve connect schematic diagram；
Fig. 3 is that outer cylindrical drill bit of the invention and interior tubular drill sleeve connect bottom view；
Fig. 4 is top cover schematic diagram of the invention；
Fig. 5 is top cover of the invention and interior tubular drill bit connection figure.
In figure: 1 top cover, 11 inside fixed plates, 12 motor fixing plates, 13 connecting plates, 2 outer cylindrical drill bits, 21 outer drill bit pipes
Body, 22 fixed screw holes, the small drill bit in 23 outer cylinder bottoms, tubular drill bit in 3, drill bit pipe shaft, 32 side scraper plates, 33 inner cylinder bottoms in 31
Small drill bit, 4 motors, 41 shaft link blocks, 5 second fixed screws, 6 first fixed screws.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-5, a kind of bidirectional screw drill bit, including top cover 1, outer cylindrical drill bit 2 and interior tubular drill bit 3, outer cylinder
The direction of rotation of shape drill bit 2 and interior tubular drill bit 3 is on the contrary, realize bidirectional rotation, and bidirectional rotation makes mining effect more preferable, mud
Native crushing effect is more preferable, and drill bit is made to be not easy adhesion soil, to keep the clean and tidy of drill bit, outer cylindrical drill bit 2 includes outer drill bit pipe
Body 21, the small drill bit 23 of fixed screw holes 22 and outer cylinder bottom are provided with fixed screw holes 22 on the side wall of outer drill bit pipe shaft 21, outside
The bottom of drill bit pipe shaft 21 is provided with the small drill bit 23 in outer cylinder bottom, and the top of outer drill bit pipe shaft 21 is provided with top cover 1, top cover 1
Top is fixedly connected with motor 4, realizes rotation, and the bottom of top cover 1 is provided with connecting plate 13, and it is solid that first is provided on connecting plate 13
Determine screw 6, the first fixed screw 6 is fixedly connected through connecting plate 13 with the fixed screw holes 22 on outer drill bit pipe shaft 21, is realized
Outer cylindrical drill bit 2 is fixedly connected with top cover 1, and outer cylindrical drill bit 2 is rotated with the rotation of top cover 1, to realize outer cylinder
Rotary digging of the shape drill bit 2 to bottom surface, outer cylindrical drill bit 2 are internally provided with interior tubular drill bit 3, and interior tubular drill bit 3 includes interior drill bit
Pipe shaft 31, the small drill bit 33 of side scraper plate 32 and inner cylinder bottom are provided with side scraper plate 32, side scraper plate 32 on the side wall of interior drill bit pipe shaft 31
It is in contact with the inner wall of outer drill bit pipe shaft 21, in the rotation of interior tubular drill bit 3, side scraper plate 32 can be effectively by outer cylindrical drill bit
Soil on 2 inner walls scrapes, to guarantee clean between both outer cylindrical drill bit 2 and interior tubular drill bits 3 gap, avoids outer
Influences the problem of rotating because soil is excessive between tubular drill bit 2 and interior tubular drill bit 3, also avoids outer cylindrical drill bit 2 and interior
Tubular drill bit 3 due to soil is excessive caused by wear, considerably increase the service life of outer cylindrical drill bit 2 and interior tubular drill bit 3,
The bottom of interior drill bit pipe shaft 31 is provided with the small drill bit 33 in inner cylinder bottom, the setting angle and the small drill bit 33 in inner cylinder bottom of side scraper plate 32
Setting angle it is identical, the side wall of side scraper plate 32 and interior drill bit pipe shaft 31 forms angle, can effectively will be in outer cylindrical drill bit 2
Soil on wall scrapes, to guarantee clean, the interior drill bit pipe shaft between both outer cylindrical drill bit 2 and interior tubular drill bit 3 gap
31 are located at the bottom of top cover 1, and top cover 1 is internally provided with internal fixed plate 11, and the middle part of internal fixed plate 11 is provided with motor
Fixed plate 12 is fixedly installed with motor 4 on motor fixing plate 12, and motor 4 is fixedly mounted on the center of inside of top cover 1, motor 4
Bottom is fixedly installed with shaft link block 41, and the bottom of shaft link block 41 passes through the second fixed screw 5 and interior drill bit pipe shaft 31
Top be fixedly connected, the rotation of motor 4 in driving tubular drill bit 3 rotate, the direction of rotation of interior tubular drill bit 3 and outer cylindrical
The direction of rotation of drill bit 2 is on the contrary, realize bidirectional rotation, and bidirectional rotation makes mining effect more preferable, and soil crushing effect is more preferable,
Drill bit is set to be not easy adhesion soil, to keep the clean and tidy of drill bit, the inside of this bidirectional screw drill bit, outer cylindrical drill bit 2 is socketed with
Interior tubular drill bit 3 is provided with side scraper plate 32, the side wall shape of side scraper plate 32 and interior drill bit pipe shaft 31 on the outer wall of interior tubular drill bit 3
It at angle, is in contact with the inner wall of outer drill bit pipe shaft 21, in the rotation of interior tubular drill bit 3, side scraper plate 32 can effectively will be outer
Soil on 2 inner wall of tubular drill bit scrapes, thus guarantee it is clean between both outer cylindrical drill bit 2 and interior tubular drill bits 3 gap,
Avoiding influences the problem of rotating because soil is excessive between outer cylindrical drill bit 2 and interior tubular drill bit 3, also avoids outer cylindrical brill
First 2 and interior tubular drill bit 3 due to soil is excessive caused by wear, considerably increase making for outer cylindrical drill bit 2 and interior tubular drill bit 3
With the service life, on the contrary, realizing bidirectional rotation, bidirectional rotation to excavate for the direction of rotation of outer cylindrical drill bit 2 and interior tubular drill bit 3
Effect is more preferable, and soil crushing effect is more preferable, and drill bit is made to be not easy adhesion soil, to keep the clean and tidy of drill bit.
In summary: this bidirectional screw drill bit, the inside of outer cylindrical drill bit 2 are socketed with inner cylinder shape drill bit 3, interior tubular drill bit
Side scraper plate 32, the side wall formation angle of side scraper plate 32 and interior drill bit pipe shaft 31, with outer drill bit pipe shaft 21 are provided on 3 outer wall
Inner wall is in contact, and in the rotation of interior tubular drill bit 3, side scraper plate 32 can effectively be scraped the soil on 2 inner wall of outer cylindrical drill bit
Under, to guarantee clean between both outer cylindrical drill bit 2 and interior tubular drill bits 3 gap, avoid outer cylindrical drill bit 2 and inner cylinder
The problem of rotating is influenced because soil is excessive between shape drill bit 3, also avoids outer cylindrical drill bit 2 and interior tubular drill bit 3 because of soil
It is excessive and caused by wear, considerably increase the service life of outer cylindrical drill bit 2 and interior tubular drill bit 3, outer cylindrical drill bit 2 and interior
The direction of rotation of tubular drill bit 3 is on the contrary, realize bidirectional rotation, and bidirectional rotation makes mining effect more preferable, soil crushing effect
More preferably, drill bit is made to be not easy adhesion soil, to keep the clean and tidy of drill bit.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of bidirectional screw drill bit, including top cover (1), outer cylindrical drill bit (2) and interior tubular drill bit (3), it is characterised in that: institute
Stating outer cylindrical drill bit (2) includes outer drill bit pipe shaft (21), the small drill bit of fixed screw holes (22) and outer cylinder bottom (23), the outer brill
It is provided on the side wall of head tube body (21) fixed screw holes (22), the bottom of the outer drill bit pipe shaft (21) is provided with outer cylinder bottom
Small drill bit (23) is provided with top cover (1) at the top of the outer drill bit pipe shaft (21), and the bottom of the top cover (1) is provided with connection
Plate (13) is provided with the first fixed screw (6) on the connecting plate (13), and first fixed screw (6) runs through connecting plate
(13) it is fixedly connected with the fixed screw holes (22) on outer drill bit pipe shaft (21), outer cylindrical drill bit (2) are internally provided with
Interior tubular drill bit (3), the interior tubular drill bit (3) include interior drill bit pipe shaft (31), the small drill bit of side scraper plate (32) and inner cylinder bottom
(33), it is provided with side scraper plate (32) on the side wall of the interior drill bit pipe shaft (31), the bottom setting of the interior drill bit pipe shaft (31)
There is the small drill bit in inner cylinder bottom (33), the interior drill bit pipe shaft (31) is located at the bottom of top cover (1), and the inside of the top cover (1) is set
It is equipped with internal fixed plate (11), is provided with motor fixing plate (12) in the middle part of the internal fixed plate (11), the motor is fixed
It is fixedly installed on plate (12) motor (4), the bottom of the motor (4) is fixedly installed with shaft link block (41), the shaft
The bottom of link block (41) at the top of the second fixed screw (5) and interior drill bit pipe shaft (31) by being fixedly connected.
2. a kind of bidirectional screw drill bit according to claim 1, it is characterised in that: the side scraper plate (32) and outer drill bit pipe
The inner wall of body (21) is in contact.
3. a kind of bidirectional screw drill bit according to claim 1, it is characterised in that: the motor (4) is fixedly mounted on top
Cover the center of inside of (1).
4. a kind of bidirectional screw drill bit according to claim 1, it is characterised in that: the setting angle of the side scraper plate (32)
It is identical as the setting angle of the small drill bit in inner cylinder bottom (33).
5. a kind of bidirectional screw drill bit according to claim 1, it is characterised in that: the outer cylindrical drill bit (2) and inner cylinder
The direction of rotation of shape drill bit (3) is opposite.
6. a kind of bidirectional screw drill bit according to claim 1, it is characterised in that: the top of the top cover (1) and motor
(4) it is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711494717.6A CN109989713A (en) | 2017-12-31 | 2017-12-31 | A kind of bidirectional screw drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711494717.6A CN109989713A (en) | 2017-12-31 | 2017-12-31 | A kind of bidirectional screw drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109989713A true CN109989713A (en) | 2019-07-09 |
Family
ID=67111695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711494717.6A Pending CN109989713A (en) | 2017-12-31 | 2017-12-31 | A kind of bidirectional screw drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109989713A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115541289A (en) * | 2022-09-02 | 2022-12-30 | 中国矿业大学(北京) | In-situ low-loss dust-free sampling device and method for soft coal seam |
| CN115788318A (en) * | 2023-01-06 | 2023-03-14 | 山西冶金岩土工程勘察有限公司 | Drill bit slag discharging device for rotary drilling rig |
-
2017
- 2017-12-31 CN CN201711494717.6A patent/CN109989713A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115541289A (en) * | 2022-09-02 | 2022-12-30 | 中国矿业大学(北京) | In-situ low-loss dust-free sampling device and method for soft coal seam |
| CN115788318A (en) * | 2023-01-06 | 2023-03-14 | 山西冶金岩土工程勘察有限公司 | Drill bit slag discharging device for rotary drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190709 |
|
| WD01 | Invention patent application deemed withdrawn after publication |