CN207620740U - A kind of one-piece auger formula Three-edged drill stem - Google Patents
A kind of one-piece auger formula Three-edged drill stem Download PDFInfo
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- CN207620740U CN207620740U CN201721633194.4U CN201721633194U CN207620740U CN 207620740 U CN207620740 U CN 207620740U CN 201721633194 U CN201721633194 U CN 201721633194U CN 207620740 U CN207620740 U CN 207620740U
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- drilling rod
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Abstract
The utility model is related to a kind of one-piece auger formula Three-edged drill stems, including drilling rod body, the drilling rod body is that rib portion is arc-shaped triangular prism structure, drilling rod body is provided centrally with central through hole, the both ends of drilling rod body are respectively arranged with pin end and female connector, adjacent drilling rod body is connected by pin end with female connector, three rib portions of the drilling rod body and three planes form conveyor screw around central axis one-piece auger, the mud hole being recessed inwardly is formed between two adjacent rib portions, so that boring mud is smoothly discharged by mud hole to outside drilling drilling rod body when rotated.The utility model is reasonable for structure, it is ingenious in design, the ingenious combination of the advantages of by Three-edged drill stem and auger stem, deslagging effect of drilling is more preferable, solves unreasonable structure present in existing drilling rod, is not easy to process, equipment requirement technology is high, the technical problems such as deslagging effect is undesirable have good market prospects and development space for the prior art.
Description
Technical field
The utility model is related to coal mine gas drainage technique field, specially a kind of one-piece auger formula Three-edged drill stem.
Background technology
In process of coal mining, in order to ensure to keep the safety in production, need to carry out gas pumping to coal seam gassy, mainly
It is drilled and is implemented by drilling rod.The drilling rod used in tradition has round drill rod, spiral shape drilling rod etc., and round drill rod is in drilling process
Powder to boring mud and toggle action very little, effectively slag cannot be easily discharged out of the hole, and especially encounter high methane soft seam and press by force
Geological conditions, phenomena such as just will appear drilling ability deficiency, stick of tool, bit freezing, and lead to drill pipe buckling, fracture；And spiral shape is bored
Although bar improves drilling ability to a certain extent, deslagging resistance is larger, and there are still the above problems, in addition by its shape shadow
It rings and material requires that high, processing is complicated, docking and dismounting drilling rod difficulty are larger, still influences production efficiency.The patent No.：
A kind of continuously spiral arc-shaped ribbed drill rod of CN201520389272.5, the arc surface of the drilling rod body and two it is adjacent
Continuous wide spiral groove, the central axes of the rotary shaft and drilling rod body of the spiral groove are provided in plane between arc surface
It is coaxially disposed, the continuous wide spiral of setting is recessed in the plane between the arc surface of drilling rod body and two adjacent circular arc faces
Slot improves efficiency of drilling although realizing the continuously deslagging in helicla flute in drilling process, there are still with
Lower problem：One, continuously spiral arc-shaped ribbed drill rod is not easy to process, and equipment requirement technology is high；Two, due to being to bore
Continuous spiral groove, the usable area of groove are set in the plane between the arc surface of the body of rod and two adjacent circular arc faces
Small, deslagging effect is still undesirable.
It is reasonable for structure how one kind is designed, it is ingenious in design, by Three-edged drill stem and the ingenious combination of auger stem, deslagging of drilling effect
The better spiral Three-edged drill stem of fruit is current problem to be solved.
Utility model content
In order to solve unreasonable structure present in existing drilling rod, it is not easy to process, equipment requirement technology is high, deslagging effect
The technical problems such as undesirable, the utility model provides a kind of one-piece auger formula Three-edged drill stem, reasonable for structure to realize, design is skilful
It is wonderful, by Three-edged drill stem and the ingenious combination of auger stem, the better purpose of deslagging effect of drilling.
Used technical solution is the utility model to solve above-mentioned technical problem：A kind of one-piece auger formula trigone brill
Bar, including drilling rod body, it is arc-shaped triangular prism structure that the drilling rod body, which is rib portion, drilling rod body to be provided centrally with center logical
The both ends in hole, drilling rod body are respectively arranged with pin end and female connector, and the outer surface of pin end is equipped with and female connector inner bolt hole phase
The external screw thread matched, adjacent drilling rod body are connected by pin end with female connector, and female connector is internally provided with to be connected to central through hole
Inner bolt hole, pin end is internally provided with the through-hole being connected to central through hole, three rib portions of the drilling rod body and three planes
Conveyor screw is formed around central axis one-piece auger, the mud hole being recessed inwardly is formed between adjacent two rib portions, so that drilling rod
Boring mud is smoothly discharged by mud hole to outside drilling body when rotated.
Compared with prior art, the utility model has the beneficial effects that：
1）The utility model includes drilling rod body, and the drilling rod body is that rib portion is arc-shaped triangular prism structure, drilling rod body
Be provided centrally with central through hole, the both ends of drilling rod body are respectively arranged with pin end and female connector, the outer surface of pin end be equipped with
The external screw thread that female connector inner bolt hole matches, adjacent drilling rod body are connected by pin end with female connector, by pin end and
Multiple drilling rod bodies are sequentially connected by female connector, are solved the problems, such as that original run of steel is insufficient, are dismantled after also allowing for use, are operated
It is convenient；
2）Three rib portions of the drilling rod body and three planes form conveyor screw around central axis one-piece auger, adjacent
The mud hole being recessed inwardly is formed between two rib portions, so that boring mud is smooth to outside drilling by mud hole when rotated for drilling rod body
Discharge, with it is existing helicla flute is set on prism compared with, the utility model is by rotate drilling rod body around central axis, increase
Mud hole efficiently uses area, and in drilling rod precession, deslagging effect becomes apparent from；
3）The centrally disposed central through hole being useful for into water of drilling rod body, convenient for flow after central through hole entrance, quickly
Boring mud is rinsed and is discharged by helicla flute；
4）Female connector is internally provided with the inner bolt hole being connected to central through hole, and pin end is internally provided with to be connected to central through hole
Through-hole, pin end and female connector are used cooperatively, and single drilling rod body are connected into longer hollow long drill pipe, use is more square
Just.
Description of the drawings
Fig. 1 is the utility model stereoscopic schematic diagram；
Fig. 2 is the utility model cross-sectional view；
It is marked in figure：1, drilling rod body, 2, central through hole, 3, mud hole.
Specific implementation mode
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
As shown, a kind of one-piece auger formula Three-edged drill stem, including drilling rod body 1, it is arc-shaped that the drilling rod body 1, which is rib portion,
Triangular prism structure, drilling rod body 1 is provided centrally with central through hole 2, and the both ends of drilling rod body 1 are respectively arranged with pin end and mother connects
Head, the outer surface of pin end are equipped with the external screw thread to match with female connector inner bolt hole, and adjacent drilling rod body 1 passes through pin end and mother
Connector is connected, and female connector is internally provided with the inner bolt hole being connected to central through hole 2, and pin end is internally provided with to be connected with central through hole 2
Logical through-hole, three rib portions of the drilling rod body 1 and three planes form conveyor screw around central axis one-piece auger, adjacent
The mud hole 3 being recessed inwardly is formed between two rib portions so that drilling rod body 1 when rotated boring mud by mud hole 3 to outside drilling
Smoothly discharge.
In actually manufacture processing, the auger of different screw pitch and radius can be processed according to the depth and drilling area drilled
Bar, to meet various construction demands.
The utility model is reasonable for structure, ingenious in design, by Three-edged drill stem and the ingenious combination of auger stem, gang drill slag of drilling effect
Fruit is more preferable, solves unreasonable structure present in existing drilling rod, is not easy to process, and equipment requirement technology is high, and deslagging effect is paid no attention to
The technical problems such as think, for the prior art, has good market prospects and development space.
The utility model preferred embodiment and embodiment are explained in detail above in conjunction with attached drawing, but this
Utility model is not limited to the above-described embodiment and examples, within the knowledge of those skilled in the art, may be used also
With various changes can be made without departing from the concept of the premise utility.
Claims (1)
1. a kind of one-piece auger formula Three-edged drill stem, including drilling rod body（1）, the drilling rod body（1）It is arc-shaped trigone for rib portion
Rod structure, drilling rod body（1）Be provided centrally with central through hole（2）, drilling rod body（1）Both ends be respectively arranged with pin end and mother connects
Head, the outer surface of pin end are equipped with the external screw thread to match with female connector inner bolt hole, adjacent drilling rod body（1）By pin end and
Female connector is connected, and female connector is internally provided with and central through hole（2）The inner bolt hole of connection, pin end is internally provided with and central through hole
（2）The through-hole of connection, it is characterised in that：The drilling rod body（1）Three rib portions and three planes around central axis entirety spiral shell
Rotation forms conveyor screw, and the mud hole being recessed inwardly is formed between adjacent two rib portions（3）, so that drilling rod body（1）When rotated
Boring mud passes through mud hole（3）It is smoothly discharged to outside drilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721633194.4U CN207620740U (en) | 2017-11-30 | 2017-11-30 | A kind of one-piece auger formula Three-edged drill stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721633194.4U CN207620740U (en) | 2017-11-30 | 2017-11-30 | A kind of one-piece auger formula Three-edged drill stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207620740U true CN207620740U (en) | 2018-07-17 |
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ID=62824943
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721633194.4U Active CN207620740U (en) | 2017-11-30 | 2017-11-30 | A kind of one-piece auger formula Three-edged drill stem |
Country Status (1)
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| CN (1) | CN207620740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647866A (en) * | 2020-12-25 | 2021-04-13 | 江苏拓海煤矿钻探机械有限公司 | Quadrangular drill rod and machining method thereof |
-
2017
- 2017-11-30 CN CN201721633194.4U patent/CN207620740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647866A (en) * | 2020-12-25 | 2021-04-13 | 江苏拓海煤矿钻探机械有限公司 | Quadrangular drill rod and machining method thereof |
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