CN108442891A - A kind of unsymmetrical section spiral groove drilling rod - Google Patents
A kind of unsymmetrical section spiral groove drilling rod Download PDFInfo
- Publication number
- CN108442891A CN108442891A CN201810488745.5A CN201810488745A CN108442891A CN 108442891 A CN108442891 A CN 108442891A CN 201810488745 A CN201810488745 A CN 201810488745A CN 108442891 A CN108442891 A CN 108442891A
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- China
- Prior art keywords
- drilling rod
- rod body
- drilling
- groove
- vortex
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- 238000005553 drilling Methods 0.000 title claims abstract description 98
- 230000007704 transition Effects 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 11
- 239000003818 cinder Substances 0.000 description 10
- 239000002893 slag Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 206010060904 Freezing phenomenon Diseases 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
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 unsymmetrical section spiral groove drilling rods, drilling rod body including hollow direct rod shape, cavity inside drilling rod body is beam channel, the external cylindrical surface of the drilling rod body is equipped with the spiral groove axially risen along drilling rod body with cylindrical helical, the external cylindrical surface of the drilling rod body, which is equipped with, is parallel to its axial a plurality of vortex groove, and the vortex groove cross-sectional profiles are the two lines section with common end.The principle of the vortex flow and screw thread cutting auxiliary deslagging cooling that cause strength under high-speed rotation using unsymmetrical section rigid body has the advantage that deslagging ability is strong, drilling efficiency is high, drilling depth is deep during drilling in coal.
Description
Technical field
The invention belongs to coal mine gas extraction drill hole technical fields, more particularly to one kind being suitable for weak seam, prominent coal
The unsymmetrical section spiral groove drilling rod of layer mash gas pumping drilling drilling.
Background technology
Mine gas improvement is the precondition of Safety of Coal Mine Production, and arrangement mash gas pumping drilling is mine gas prevention and control
Common measure.Currently, the domestic drilling rod generally used has following three kinds：One is the smooth surface drilling rod by wind-force or hydraulic slag discharging,
One is the auger stems by machine power deslagging, and one is by loose saturating and wind power slag-discharging the Three-edged drill stem of vortex.Above-mentioned three classes
There is defect in weak seam drilling process in drilling rod：For smooth surface drilling rod in weak seam drilling process, deslagging ability is weak,
Drilling is easy to happen to block；Auger stem is in weak seam drilling process, at the region that collapse hole or hole wall are obviously shunk, is easy
There is bit freezing, fall to bore phenomenon；Although Three-edged drill stem causes vortex flow under high-speed rotation, slagging channel is formed, due to this
Drilling rod is vortexed that the slagging channel to be formed is small, and deslagging ability is weak, when the collapse hole that drills, is susceptible to bit freezing phenomenon.Therefore, it is necessary to design
A kind of novel drill rod that deslagging ability is as big as possible, drill collapse hole when, slagging channel can be dredged in time.
Invention content
The present invention is to solve deficiency in the prior art, in conjunction with the advantage and disadvantage of above-mentioned drilling rod in practical applications, according to non-
The principle for causing the vortex flow and screw thread cutting auxiliary deslagging cooling of strength under symmetrical section rigid body high-speed rotation, provides one kind
The unsymmetrical section spiral groove drilling rod that deslagging ability is strong, pore-forming effect is good, drilling efficiency is high, drilling depth is deep.
In order to achieve the above objectives, using following technical scheme.
A kind of unsymmetrical section spiral groove drilling rod, includes the drilling rod body of hollow direct rod shape, and the cavity inside drilling rod body is
Beam channel, the external cylindrical surface of the drilling rod body are equipped with the spiral groove axially risen along drilling rod body with cylindrical helical, institute
The external cylindrical surface for stating drilling rod body is equipped with a plurality of vortex groove for being parallel to its axial direction, and the vortex groove cross-sectional profiles are with altogether
With the two lines section of endpoint, the angle between two lines section is 45 °~120 °.
To improve drilling life of drill pipe and chip effect, high temperature resistance Wear-resistant Treatment can be carried out in drilling rod body surface face.
The external cylindrical surface of the drilling rod body one end is equipped with external screw thread, and the inner cylinder face of the other end is equipped with interior spiral shell
Line, the external screw thread can cooperate with internal thread.
Cross sectional shape rectangle, the triangle of the bolt indentation.
Spacing between the vortex groove is identical.
The vortex groove set there are two, three or four.
To avoid drilling rod from scratching operating personnel, the vortex groove carries out transition with the external cylindrical surface of drilling rod by fillet；For
Cinder accumulation at two straight line intersection of vortex groove is prevented to be not easily cleaned, also by smooth curve transition between two straight lines.
Using the above structure, according to vortex flow and the screw thread cutting for causing strength under unsymmetrical section rigid body high-speed rotation
The principle of deslagging cooling is assisted, when unsymmetrical section spiral groove drilling rod rotates in coal body drills, on the external cylindrical surface of drilling rod
Vortex groove in can form slagging channel（Vortex）, be conducive to hole drilling deslagging.Meanwhile the thread groove of drilling rod body surface layout
Have the effect of disintegrating slag and auxiliary deslagging cooling.The beam channel of air-flow or flow out of drilling rod body enters, and carries cinder from brill
Slagging channel discharge between the body of rod and coal wall wall, when collapse hole occurs in drilling, on the one hand the vortex groove of the external side of drilling rod has pine
On the other hand the effect of saturating cinder forms vortex slagging channel, the active force between drilling rod and cinder is released, in conjunction with brill
The effect of the disintegrating slag and auxiliary deslagging of body of rod outer helical groove, the deslagging ability of drilling rod improve, are less prone to bit freezing phenomenon, have
Conducive to raising drilling efficiency and drilling depth.
The external table turnery processing of drilling rod has one or more right-handed screw groove, drilling rod body axial direction Milling Process to have a plurality of vortex
Slot.Spiral groove has the function of that cutting hole wall protrusion coal body reduces drilling resistance and auxiliary deslagging heat dissipation；Vortex groove makes drilling rod
In high speed rotation, swirl channel is formed at vortex groove, the vortex on the one hand formed has the function of loose cinder thoroughly, on the other hand
The swirl channel of formation can be conducive to cinder and is discharged to outside hole.Using the above structure, the deslagging ability of drilling rod increases substantially,
It is tested through field test：The deslagging efficiency of unsymmetrical section spiral groove drilling rod provided by the invention compares smooth surface drilling rod, quarter
Traverse drill bar and Three-edged drill stem can improve 55% or more.
The present invention causes the vortex flow and screw thread cutting auxiliary of strength using unsymmetrical section rigid body under high-speed rotation
The principle of deslagging cooling has the advantage that deslagging ability is strong, drilling efficiency is high, drilling depth is deep, value during drilling in coal
It obtains and is promoted and applied in coal mining enterprise.
Description of the drawings
Fig. 1 is the front view of embodiment 1；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is in Fig. 1 along the sectional view in the directions A-A；
Fig. 5 is the front view of embodiment 2；
Fig. 6 is the left view of Fig. 5.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages and effect of the present invention easily.
It please refers to Fig.1.Structure, ratio, size etc. depicted in this specification institute accompanying drawings, only coordinating specification
Revealed content is not limited to the enforceable restriction item of the present invention so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, should all still fall can cover in disclosed technology contents
In the range of.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also
Only being illustrated for ease of narration, rather than to limit the scope of the invention, relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, embodiment 1 is a kind of unsymmetrical section spiral groove drilling rod, including hollow straight
Rod-shaped drilling rod body 6, the cavity inside drilling rod body 6 are beam channel 3, and the external cylindrical surface of the drilling rod body 6 is equipped with cylinder
The spiral groove 2 that helical form axially rises along drilling rod body 6, the external cylindrical surface of the drilling rod body 6, which is equipped with, is parallel to its axial direction
A plurality of vortex groove 1,1 cross-sectional profiles of the vortex groove are the two lines section with common end, the angle between two lines section
It is 45 °~120 °.
To improve drilling life of drill pipe and chip effect, high temperature resistance Wear-resistant Treatment can be carried out on 6 surface of drilling rod body.
The external cylindrical surface of 6 one end of drilling rod body is equipped with external screw thread 4, and the inner cylinder face of the other end is equipped with interior spiral shell
Line 5, the external screw thread 4 can cooperate with internal thread 5.
Cross sectional shape rectangle, the triangle of the bolt indentation.
Spacing between the vortex groove 1 is identical.
There are three the vortex groove 1 is set.
As shown in Figure 5, Figure 6, embodiment 2 and embodiment 1 difference lies in：Vortex groove 1 on its drilling rod body 6 is equipped with four
It is a.
To avoid drilling rod from scratching operating personnel, the vortex groove 1 carries out transition with 6 external cylindrical surface of drilling rod body by fillet；
To prevent cinder accumulation at 1 liang of straight line intersection of vortex groove to be not easily cleaned, also by smooth curve transition between two straight lines.
Using the above structure, according to vortex flow and the screw thread cutting for causing strength under unsymmetrical section rigid body high-speed rotation
The principle of deslagging cooling is assisted, when unsymmetrical section spiral groove drilling rod rotates in coal body drills, on 6 external cylindrical surface of drilling rod body
Vortex groove 1 in can form slagging channel（Vortex）, be conducive to hole drilling deslagging.Meanwhile the screw thread of 6 surface layout of drilling rod body is recessed
Slot has the effect of disintegrating slag and auxiliary deslagging cooling.The beam channel 3 of air-flow or flow out of drilling rod body 6 enters, and carries cinder
Slagging channel discharge between drilling rod body 6 and coal wall wall, when collapse hole occurs in drilling, the vortex groove 1 in 6 outside of drilling rod body is on the one hand
Having the function of loose cinder thoroughly, on the other hand forms vortex slagging channel, the active force between drilling rod and cinder is released, then
In conjunction with the effect of the disintegrating slag and auxiliary deslagging of 6 outer helical groove 2 of drilling rod body, the deslagging ability of drilling rod improves, and is less prone to card
Phenomenon is bored, is conducive to improve drilling efficiency and drilling depth.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of unsymmetrical section spiral groove drilling rod includes the drilling rod body of hollow direct rod shape, the cavity inside drilling rod body is note
Circulation road, it is characterised in that：The external cylindrical surface of the drilling rod body is equipped with the spiral shell axially risen along drilling rod body with cylindrical helical
Groove is revolved, the external cylindrical surface of the drilling rod body, which is equipped with, is parallel to its axial a plurality of vortex groove, the vortex groove cross section wheel
Exterior feature is the two lines section with common end, and the angle between two lines section is 45 °~120 °.
2. unsymmetrical section spiral groove drilling rod according to claim 1, it is characterised in that：Outside the drilling rod body one end
Cylindrical surface is equipped with external screw thread, and the inner cylinder face of the other end is equipped with internal thread, and the external screw thread can be with internal thread phase interworking
It closes.
3. unsymmetrical section spiral groove drilling rod according to claim 1, it is characterised in that：The section shape of the bolt indentation
Shape rectangle, triangle.
4. unsymmetrical section spiral groove drilling rod according to claim 1, it is characterised in that：Between the vortex groove
Spacing is identical.
5. according to the unsymmetrical section spiral groove drilling rod of claim 1 or 4, it is characterised in that：The vortex groove is equipped with two
It is a, three or four.
6. unsymmetrical section spiral groove drilling rod according to claim 1, it is characterised in that：The vortex groove and drilling rod are external
Cylindrical surface carries out transition by fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488745.5A CN108442891A (en) | 2018-05-21 | 2018-05-21 | A kind of unsymmetrical section spiral groove drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488745.5A CN108442891A (en) | 2018-05-21 | 2018-05-21 | A kind of unsymmetrical section spiral groove drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108442891A true CN108442891A (en) | 2018-08-24 |
Family
ID=63204332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810488745.5A Pending CN108442891A (en) | 2018-05-21 | 2018-05-21 | A kind of unsymmetrical section spiral groove drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108442891A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098674A (en) * | 2018-09-01 | 2018-12-28 | 邹城兖矿泰德工贸有限公司 | Spiral combines hollow drill pipe |
| CN109488221A (en) * | 2018-11-26 | 2019-03-19 | 邹城兖矿泰德工贸有限公司 | Drill pipe for hard rocks |
| CN110552630A (en) * | 2019-10-15 | 2019-12-10 | 山东源运通矿山装备科技有限公司 | Electric coal drill rod |
| CN110792470A (en) * | 2019-12-09 | 2020-02-14 | 中国矿业大学(北京) | Special-section grooving double-channel multi-stage pushing deslagging drill rod and using method thereof |
| CN112377113A (en) * | 2020-11-29 | 2021-02-19 | 重庆梅安森科技股份有限公司 | Internal cooling drill rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481999A (en) * | 2009-02-17 | 2009-07-15 | 河南理工大学 | Drilling rod with asymmetric special-shaped cross section |
| CN201747291U (en) * | 2010-07-09 | 2011-02-16 | 平顶山市冠宏工贸有限责任公司 | Drill rod for soft coal bed in coal mine |
| CN102787812A (en) * | 2012-08-20 | 2012-11-21 | 山东九商工程机械有限公司 | Integral multi-prismatic drill pipe |
| US8955621B1 (en) * | 2011-08-09 | 2015-02-17 | Turboflex, Inc. | Grooved drill string components and drilling methods |
| CN208633787U (en) * | 2018-05-21 | 2019-03-22 | 河南理工大学 | A kind of unsymmetrical section spiral groove drilling rod |
-
2018
- 2018-05-21 CN CN201810488745.5A patent/CN108442891A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481999A (en) * | 2009-02-17 | 2009-07-15 | 河南理工大学 | Drilling rod with asymmetric special-shaped cross section |
| CN201747291U (en) * | 2010-07-09 | 2011-02-16 | 平顶山市冠宏工贸有限责任公司 | Drill rod for soft coal bed in coal mine |
| US8955621B1 (en) * | 2011-08-09 | 2015-02-17 | Turboflex, Inc. | Grooved drill string components and drilling methods |
| CN102787812A (en) * | 2012-08-20 | 2012-11-21 | 山东九商工程机械有限公司 | Integral multi-prismatic drill pipe |
| CN208633787U (en) * | 2018-05-21 | 2019-03-22 | 河南理工大学 | A kind of unsymmetrical section spiral groove drilling rod |
Non-Patent Citations (1)
| Title |
|---|
| 王永龙;翟新献;孙玉宁;: "刻槽钻杆应用于突出煤层钻进的合理参数研究", 煤炭学报 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098674A (en) * | 2018-09-01 | 2018-12-28 | 邹城兖矿泰德工贸有限公司 | Spiral combines hollow drill pipe |
| CN109098674B (en) * | 2018-09-01 | 2019-11-26 | 邹城兖矿泰德工贸有限公司 | Spiral combines hollow drill pipe |
| CN109488221A (en) * | 2018-11-26 | 2019-03-19 | 邹城兖矿泰德工贸有限公司 | Drill pipe for hard rocks |
| CN110552630A (en) * | 2019-10-15 | 2019-12-10 | 山东源运通矿山装备科技有限公司 | Electric coal drill rod |
| CN110792470A (en) * | 2019-12-09 | 2020-02-14 | 中国矿业大学(北京) | Special-section grooving double-channel multi-stage pushing deslagging drill rod and using method thereof |
| CN112377113A (en) * | 2020-11-29 | 2021-02-19 | 重庆梅安森科技股份有限公司 | Internal cooling drill rod |
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| PB01 | Publication | ||
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Application publication date: 20180824 |