CN111219149A - Bidirectional spiral drill bit - Google Patents

Bidirectional spiral drill bit Download PDF

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Publication number
CN111219149A
CN111219149A CN201811406247.8A CN201811406247A CN111219149A CN 111219149 A CN111219149 A CN 111219149A CN 201811406247 A CN201811406247 A CN 201811406247A CN 111219149 A CN111219149 A CN 111219149A
Authority
CN
China
Prior art keywords
drill bit
bit
pipe body
tube form
motor
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.)
Withdrawn
Application number
CN201811406247.8A
Other languages
Chinese (zh)
Inventor
王忠阳
徐荣
陈东国
关鹏
马玉歌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Longteng Fluid Equipment Co ltd
Original Assignee
Dalian Longteng Fluid Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dalian Longteng Fluid Equipment Co ltd filed Critical Dalian Longteng Fluid Equipment Co ltd
Priority to CN201811406247.8A priority Critical patent/CN111219149A/en
Publication of CN111219149A publication Critical patent/CN111219149A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/42Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B12/00Accessories for drilling tools
    • E21B12/06Mechanical cleaning devices

Abstract

The invention discloses a bidirectional spiral drill bit which comprises a top cover, an outer cylindrical drill bit and an inner cylindrical drill bit, wherein the inner cylindrical drill bit is arranged inside the outer cylindrical drill bit, a side scraper is arranged on the side wall of a pipe body of the inner drill bit, and the bottom of a rotating shaft connecting block is fixedly connected with the top of the pipe body of the inner drill bit through a second fixing screw. This two-way auger bit, be provided with the side scraper blade on the outer wall of inner tube form drill bit, contact with the inner wall of outer drill bit pipe shaft, when rotatory, the effectual earth with on the outer tube form drill bit inner wall of side scraper blade is scraped down, the problem of the too much rotatory problem of influence and wearing and tearing because of earth between outer tube form drill bit and the inner tube form drill bit has been avoided, greatly increased the life of outer tube form drill bit and inner tube form drill bit, the rotation direction of outer tube form drill bit and inner tube form drill bit is opposite, two-way rotation has been realized, two-way rotation makes the excavation effect better, the effect is smashed to earth better, make the difficult adhesion earth of drill bit, thereby keep the clean and tidy.

Description

Bidirectional spiral drill bit
Technical Field
The invention relates to the technical field of drill bits, in particular to a bidirectional spiral drill bit.
Background
The rotary drill bit is a construction process suitable for hole forming operation in building foundation engineering. The rotary drilling rig is widely used for foundation construction projects such as municipal construction, highway bridges and high-rise buildings, is matched with different drilling tools, is suitable for hole forming operation of dry (short spiral) or wet (rotary bucket) and rock strata (core drill), and has the characteristics of large installed power, large output torque, large axial pressure, flexibility, high construction efficiency and multiple functions. The rotary drilling rig is suitable for soil geological conditions in most areas in China, has a wide application range, and can basically meet the use requirements of projects such as bridge construction, high-rise building foundation and the like. At present, the rotary drilling rig is widely popularized in various cast-in-place bored pile projects. Therefore, the method has very important significance for carrying out technical discussion on the construction preparation of the rotary drilling rig and the common clear water construction process. During construction, different drill bits are selected according to different soil and geological conditions, but when the drill bits are used, soil, particularly cylindrical drill bits are easily stained in the drill bits through unidirectional rotation, bad influence is caused on the use of the drill bits, and meanwhile, the excavating effect is weakened.
Disclosure of Invention
The invention aims to provide a bidirectional spiral drill bit which has the characteristic of bidirectional rotation and solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a bidirectional spiral drill bit comprises a top cover, an outer tubular drill bit and an inner tubular drill bit, wherein the outer tubular drill bit comprises an outer drill bit pipe body, a fixed screw hole and an outer barrel bottom small drill bit, the side wall of the outer drill bit pipe body is provided with the fixed screw hole, the bottom of the outer drill bit pipe body is provided with the outer barrel bottom small drill bit, the top of the outer drill bit pipe body is provided with the top cover, the bottom of the top cover is provided with a connecting plate, the connecting plate is provided with a first fixed screw, the first fixed screw penetrates through the connecting plate and is fixedly connected with the fixed screw hole on the outer drill bit pipe body, the inner tubular drill bit is arranged inside the outer tubular drill bit, the inner tubular drill bit comprises an inner drill bit pipe body, a side scraper and an inner barrel bottom small drill bit, the side scraper is arranged on the side wall of the inner drill bit pipe body, the bottom of, the interior drill bit pipe shaft is located the bottom of top cap, the inside of top cap is provided with inside fixed plate, the middle part of inside fixed plate is provided with the motor fixed plate, fixed mounting has the motor on the motor fixed plate, the bottom fixed mounting of motor has the pivot connecting block, the top fixed connection of second fixed screw and interior drill bit pipe shaft is passed through to the bottom of pivot connecting block.
Preferably, the side scrapers contact with the inner wall of the outer drill bit body.
Preferably, the motor is fixedly installed at the inner center of the top cover.
Preferably, the installation angle of the side scraping plate is the same as that of the small drill bit at the bottom of the inner cylinder.
Preferably, the outer cylindrical drill and the inner cylindrical drill rotate in opposite directions.
Preferably, the top of the top cover is fixedly connected with the motor.
Compared with the prior art, the invention has the following beneficial effects:
the bidirectional spiral drill bit is characterized in that an inner tubular drill bit is sleeved inside an outer tubular drill bit, a side scraper is arranged on the outer wall of the inner tubular drill bit and forms an included angle with the side wall of an inner drill bit pipe body and is contacted with the inner wall of the outer drill bit pipe body, when the inner tubular drill bit rotates, the side scraper can effectively scrape off soil on the inner wall of the outer tubular drill bit, so that the cleanness of gaps between the outer tubular drill bit and the inner tubular drill bit is ensured, the problem that the rotation is influenced due to too much soil between the outer tubular drill bit and the inner tubular drill bit is avoided, the abrasion of the outer tubular drill bit and the inner tubular drill bit due to too much soil is also avoided, the service lives of the outer tubular drill bit and the inner tubular drill bit are greatly prolonged, the rotation directions of the outer tubular drill bit and the inner tubular drill bit are opposite, the bidirectional rotation is realized, the excavating effect is better due to, the drill bit is not easy to adhere to the soil, so that the cleanness of the drill bit is kept.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic diagram of the sleeving connection between the outer tubular drill bit and the inner tubular drill bit according to the present invention;
FIG. 3 is a bottom view of the outer and inner tubular drills of the present invention in nested relation;
FIG. 4 is a schematic view of a top cover of the present invention;
fig. 5 is a connection diagram of the top cover and the inner cylindrical drill of the present invention.
In the figure: 1 top cover, 11 internal fixing plates, 12 motor fixing plates, 13 connecting plates, 2 outer cylindrical drill bits, 21 outer drill bit pipe bodies, 22 fixing screw holes, 23 outer cylinder bottom small drill bits, 3 inner cylinder drill bits, 31 inner drill bit pipe bodies, 32 side scraping plates, 33 inner cylinder bottom small drill bits, 4 motors, 41 rotating shaft connecting blocks, 5 second fixing screws and 6 first fixing screws.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a bidirectional auger bit comprises a top cover 1, an outer tubular auger bit 2 and an inner tubular auger bit 3, wherein the outer tubular auger bit 2 and the inner tubular auger bit 3 rotate in opposite directions to achieve bidirectional rotation, the bidirectional rotation enables better excavation effect and better soil crushing effect, and enables the auger bit not to adhere soil easily, thereby keeping the auger bit clean and tidy, the outer tubular auger bit 2 comprises an outer auger bit tube 21, a fixing screw hole 22 and an outer tubular bottom small auger bit 23, a fixing screw hole 22 is arranged on the side wall of the outer auger bit tube 21, the outer tubular auger bit 23 is arranged at the bottom of the outer auger bit tube 21, the top of the outer auger bit tube 21 is provided with the top cover 1, the top of the top cover 1 is fixedly connected with a motor 4 to achieve rotation, the bottom of the top cover 1 is provided with a connecting plate 13, a first fixing screw 6 is arranged on the connecting plate 13, the first fixing screw 6 penetrates through the connecting plate 13 and is fixedly connected with the, the outer tubular drill bit 2 is fixedly connected with the top cover 1, the outer tubular drill bit 2 rotates along with the rotation of the top cover 1, so that the rotary digging of the bottom surface by the outer tubular drill bit 2 is realized, the inner tubular drill bit 3 is arranged in the outer tubular drill bit 2, the inner tubular drill bit 3 comprises an inner drill bit pipe body 31, a side scraper 32 and a small drill bit 33 at the bottom of the inner cylinder, the side scraper 32 is arranged on the side wall of the inner drill bit pipe body 31, the side scraper 32 is contacted with the inner wall of the outer drill bit pipe body 21, when the inner tubular drill bit 3 rotates, the side scraper 32 can effectively scrape off soil on the inner wall of the outer tubular drill bit 2, so that the gaps between the outer tubular drill bit 2 and the inner tubular drill bit 3 are ensured to be clean, the problem that the rotation is influenced by too much soil between the outer tubular drill bit 2 and the inner tubular drill bit 3 is avoided, and the abrasion of the outer tubular drill bit 2 and, the service life of the outer tubular drill bit 2 and the inner tubular drill bit 3 is greatly prolonged, the bottom of the inner drill bit pipe body 31 is provided with an inner-cylinder bottom small drill bit 33, the installation angle of the side scraping plate 32 is the same as that of the inner-cylinder bottom small drill bit 33, an included angle is formed between the side scraping plate 32 and the side wall of the inner drill bit pipe body 31, soil on the inner wall of the outer tubular drill bit 2 can be effectively scraped, so that the cleanness of gaps between the outer tubular drill bit 2 and the inner tubular drill bit 3 is ensured, the inner drill bit pipe body 31 is positioned at the bottom of the top cover 1, the inside of the top cover 1 is provided with the inner fixing plate 11, the middle part of the inner fixing plate 11 is provided with the motor fixing plate 12, the motor 4 is fixedly arranged on the motor fixing plate 12, the motor 4 is fixedly arranged at the center inside the top cover 1, the bottom of the motor 4 is fixedly provided with the, the motor 4 rotates to drive the inner tubular drill bit 3 to rotate, the rotating direction of the inner tubular drill bit 3 is opposite to that of the outer tubular drill bit 2, bidirectional rotation is realized, the bidirectional rotation enables the excavating effect to be better, the soil crushing effect is better, the drill bits are not easy to adhere to soil, and the cleanness of the drill bits is kept, the inner tubular drill bit 3 is sleeved inside the outer tubular drill bit 2, the side scraping plates 32 are arranged on the outer wall of the inner tubular drill bit 3, the side scraping plates 32 form included angles with the side wall of the inner drill bit pipe body 31 and are contacted with the inner wall of the outer drill bit pipe body 21, when the inner tubular drill bit 3 rotates, the side scraping plates 32 can effectively scrape the soil on the inner wall of the outer tubular drill bit 2, so that the cleanness between the gaps of the outer tubular drill bit 2 and the inner tubular drill bit 3 is ensured, and the problem that the rotation is influenced by the excessive soil between the outer tubular drill bit, also avoided outer tubulose drill bit 2 and inner tube form drill bit 3 because of the too much wearing and tearing that cause of earth, greatly increased outer tubulose drill bit 2 and inner tube form drill bit 3's life, the rotation direction of outer tubulose drill bit 2 and inner tube form drill bit 3 is opposite, has realized two-way rotation, and two-way rotation makes the excavation effect better, and the effect is smashed to earth is better, makes the difficult adhesion earth of drill bit to keep the clean and tidy of drill bit.
In summary, the following steps: the bidirectional spiral drill bit comprises an outer tubular drill bit 2, an inner tubular drill bit 3 is sleeved inside the outer tubular drill bit 2, a side scraper 32 is arranged on the outer wall of the inner tubular drill bit 3, an included angle is formed between the side scraper 32 and the side wall of an inner drill bit pipe body 31 and is contacted with the inner wall of an outer drill bit pipe body 21, when the inner tubular drill bit 3 rotates, the side scraper 32 can effectively scrape off soil on the inner wall of the outer tubular drill bit 2, so that the cleanness of gaps between the outer tubular drill bit 2 and the inner tubular drill bit 3 is ensured, the problem that the rotation is influenced by excessive soil between the outer tubular drill bit 2 and the inner tubular drill bit 3 is avoided, the abrasion of the outer tubular drill bit 2 and the inner tubular drill bit 3 caused by excessive soil is also avoided, the service lives of the outer tubular drill bit 2 and the inner tubular drill bit 3 are greatly prolonged, the rotation directions of the outer tubular drill bit 2 and the inner tubular drill bit 3 are opposite, the bidirectional, the soil crushing effect is better, and the drill bit is not easy to adhere to soil, so that the cleanness of the drill bit is kept.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a two-way auger bit, includes top cap (1), outer tube-shape drill bit (2) and inner tube-shape drill bit (3), its characterized in that: the outer cylindrical drill bit (2) comprises an outer drill bit pipe body (21), a fixed screw hole (22) and an outer cylinder bottom small drill bit (23), the side wall of the outer drill bit pipe body (21) is provided with the fixed screw hole (22), the bottom of the outer drill bit pipe body (21) is provided with the outer cylinder bottom small drill bit (23), the top of the outer drill bit pipe body (21) is provided with a top cover (1), the bottom of the top cover (1) is provided with a connecting plate (13), the connecting plate (13) is provided with a first fixed screw (6), the first fixed screw (6) penetrates through the connecting plate (13) and is fixedly connected with the fixed screw hole (22) on the outer drill bit pipe body (21), the inner cylindrical drill bit (3) is arranged inside the outer cylindrical drill bit (2), and the inner cylindrical drill bit (3) comprises an inner drill bit pipe body (31), a side scraper (32) and an inner cylinder bottom small drill bit (33), be provided with side scraper (32) on the lateral wall of interior drill bit pipe shaft (31), the bottom of interior drill bit pipe shaft (31) is provided with inner tube bottom little drill bit (33), interior drill bit pipe shaft (31) are located the bottom of top cap (1), the inside of top cap (1) is provided with inside fixed plate (11), the middle part of inside fixed plate (11) is provided with motor fixed plate (12), fixed mounting has motor (4) on motor fixed plate (12), the bottom fixed mounting of motor (4) has pivot connecting block (41), the top fixed connection of second fixed screw (5) and interior drill bit pipe shaft (31) is passed through to the bottom of pivot connecting block (41).
2. A bi-directional auger bit according to claim 1, wherein: the side scrapers (32) are in contact with the inner wall of the outer drill bit tube body (21).
3. A bi-directional auger bit according to claim 1, wherein: the motor (4) is fixedly arranged in the center of the top cover (1).
4. A bi-directional auger bit according to claim 1, wherein: the installation angle of the side scraper (32) is the same as that of the small drill (33) at the bottom of the inner cylinder.
5. A bi-directional auger bit according to claim 1, wherein: the rotation directions of the outer cylindrical drill bit (2) and the inner cylindrical drill bit (3) are opposite.
6. A bi-directional auger bit according to claim 1, wherein: the top of the top cover (1) is fixedly connected with the motor (4).
CN201811406247.8A 2018-11-25 2018-11-25 Bidirectional spiral drill bit Withdrawn CN111219149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811406247.8A CN111219149A (en) 2018-11-25 2018-11-25 Bidirectional spiral drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811406247.8A CN111219149A (en) 2018-11-25 2018-11-25 Bidirectional spiral drill bit

Publications (1)

Publication Number Publication Date
CN111219149A true CN111219149A (en) 2020-06-02

Family

ID=70830204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811406247.8A Withdrawn CN111219149A (en) 2018-11-25 2018-11-25 Bidirectional spiral drill bit

Country Status (1)

Country Link
CN (1) CN111219149A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177536A (en) * 2020-09-03 2021-01-05 祁东县锋速钻探工具有限公司 Diamond geological drill bit capable of reducing blockage of drilling tool
WO2022051720A1 (en) * 2020-09-04 2022-03-10 Schlumberger Technology Corporation Milling and catching devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177536A (en) * 2020-09-03 2021-01-05 祁东县锋速钻探工具有限公司 Diamond geological drill bit capable of reducing blockage of drilling tool
WO2022051720A1 (en) * 2020-09-04 2022-03-10 Schlumberger Technology Corporation Milling and catching devices

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PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20200602

WW01 Invention patent application withdrawn after publication