CN101481999A - Drilling rod with asymmetric special-shaped cross section - Google Patents
Drilling rod with asymmetric special-shaped cross section Download PDFInfo
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- CN101481999A CN101481999A CNA2009100642233A CN200910064223A CN101481999A CN 101481999 A CN101481999 A CN 101481999A CN A2009100642233 A CNA2009100642233 A CN A2009100642233A CN 200910064223 A CN200910064223 A CN 200910064223A CN 101481999 A CN101481999 A CN 101481999A
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- 238000005553 drilling Methods 0.000 title claims abstract description 47
- 239000003245 coal Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 239000003818 cinder Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本发明公开了一种非对称异型截面钻杆，由中空的杆体和连接件组成，杆体和连接件可拆卸连接，所述杆体在轴向方向上设有数目大于等于二条、小于等于八条的凸棱，凸棱外表面为以杆体中轴线为圆心的圆弧面，凸棱一侧与杆体形成长条形凹槽。本发明设计合理、结构简单，根据异型截面刚体在松散煤渣中旋转引起旋涡流动的原理，不易出现吸钻、卡钻的现象，安全可靠，极大地提高排渣效果，有利于提高钻孔深度，缩短钻孔时间，提高工作效率并且成孔率高，值得在煤矿企业推广应用。
The invention discloses a drill pipe with an asymmetric special-shaped cross-section, which is composed of a hollow rod body and a connecting piece. The rod body and the connecting piece are detachably connected. Rib, the outer surface of the rib is an arc surface with the central axis of the rod body as the center, and one side of the rib and the rod body form an elongated groove. The invention is reasonable in design and simple in structure. According to the principle of vortex flow caused by the rotation of a rigid body with special-shaped cross-section in loose coal slag, the phenomenon of drill suction and sticking is not easy to occur, and it is safe and reliable. It greatly improves the slag discharge effect and is beneficial to increase the drilling depth. The drilling time is shortened, the work efficiency is improved and the hole formation rate is high, so it is worth popularizing and applying in coal mining enterprises.
Description
Technical field
The invention belongs to coal mine gas extraction borehole technical field, relate in particular to a kind of asymmetric profiled-cross-section drilling rod that is applicable to weak seam, projecting coal bed mash gas pumping drilling.
Background technology
Underground gas extraction boring divides coal bed drilling and rock-boring, generally the drilling rod of Cai Yonging has two kinds, a kind of is the auger stem (mechanical deslagging drilling rod) that leans on rig rotary power deslagging, and a kind of is the light face round bur bar (fluid deslagging drilling rod, fluid comprises air-flow and current) that leans on the fluid deslagging.General light face round bur bar, the supporting employing hydraulic slag discharging of adopting during the rock-boring construction; Light face round bur bar can be adopted during the coal bed drilling construction, also auger stem can be adopted.All there is defective in above-mentioned two kinds of drilling rods when the weak seam drilling construction, mainly show: light face round bur bar occurs dreg removing system during construction drill easily and stops up in weak seam, be difficult to realize deep well drilling; Auger stem efficiency of construction in weak seam boring is low, often occurs inhaling brill, bit freezing phenomenon, also is difficult to realize deep well drilling.
In addition, disclosed Chinese patent invention " outburst coal seam hole temperature-reducing drilling tool and drilling method thereof ", patent publication No. is CN101131069A, two kinds of ways of helicla flute or welding horizontal steel plate are carved in employing at light face round bur bar, drilling in weak seam has certain effect, but the degree of depth of drilling is still unsatisfactory.Chinese patent CN01267191.6 disclosed " cherry coal floor height gas deep hole rig drilling rod " and Chinese patent CN200720306879.8 disclosed " circular arc fin gas drainage under suction drilling rod " make the drilling rod cross sectional shape into the rib shape, the symmetrical triangular shape drilling rod of implementing is drilled at weak seam and has also been obtained certain effect, but does not still reach perfect condition in the result of use and the degree of depth of drilling.
Summary of the invention
The present invention is in order to solve weak point of the prior art, in loose cinder, rotate the principle that causes vortex motion according to the profiled-cross-section rigid body, provide a kind of hole effective, the degree of depth of drilling is dark, efficiency of construction is high is used for the asymmetric profiled-cross-section drilling rod that weak seam creeps into.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: asymmetric profiled-cross-section drilling rod, the body of rod and connector by hollow are formed, the body of rod and connector removably connect, the described body of rod be provided with in the axial direction number more than or equal to two, smaller or equal to eight fins, the fin external surface is for being the arc surface in the center of circle with body of rod axis, and fin one side and the body of rod form the strip groove.
Described fin number more than or equal to three, smaller or equal to six, fin opposite side and body of rod plane, cambered surface or curved surface seamlessly transit, body of rod internal cavities cross section is and its external structure similar shapes.，
Described connector comprises protruding connector and recessed connector, protruding connector comprises three sections of left, center, right, section external structure in a left side is identical with body of rod internal cavity structures and peg graft with the body of rod and to cooperate, and the stage casing external structure is identical with body of rod external structure, and the right side section is conical external thread structure; Recessed connector comprises two sections, and one section external structure is identical with body of rod external structure, and this intersegmental part cavity is the female cone helicitic texture with the right section of protruding connector threaded, and another section external structure is identical with body of rod internal cavity structures and cooperate with body of rod grafting.
Described body of rod internal cavities is cylindrical, and the cavity two ends are provided with the little tapered thread of outer imperial palace.
Described connector comprises that two ends are the tapered thread structure that can be spirally connected with body of rod two ends internal cavities, and the external structure of mid portion is identical with body of rod external structure.
Adopt said structure, rotate in loose cinder according to the profiled-cross-section rigid body and to cause the principle that flows along the rigid body axial vortex, when drilling rod is buried by loose boring mud at high-speed drilling, can in several grooves around the drilling rod, form the slagging channel (vortex region) that can allow the deslagging air communication cross, air-flow or current are sent into by endoporus, cinder is discharged by slagging channel, reduce the rotational resistance of drilling rod, be not prone to inhale and bore, the phenomenon of bit freezing, safe and reliable, greatly improve the deslagging effect, help improving drilling depth, shorten drilling time, increase work efficiency and become the porosity height, be worth applying in coal mining enterprise.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation with four fin drilling rod embodiment two;
Fig. 4 is the right view of Fig. 3;
Fig. 5 is the structural representation with four fin drilling rod embodiment three;
Fig. 6 is the right view of Fig. 5;
Fig. 7 is the structural representation with four fin drilling rod embodiment four;
Fig. 8 is the right view of Fig. 7;
Fig. 9 is the structural representation with four fin drilling rod embodiment five;
Figure 10 is the right view of Fig. 9;
Figure 11 is the structural representation with four fin drilling rod embodiment six;
Figure 12 is the right view of Figure 11;
Figure 13 is the structural representation with three fin drilling rod embodiment one;
Figure 14 is the right view of Figure 13;
Figure 15 is the structural representation with three fin drilling rod embodiment two;
Figure 16 is the right view of Figure 15;
Figure 17 is the structural representation with three fin drilling rod embodiment three;
Figure 18 is the right view of Figure 17;
Figure 19 is the structural representation with four fin connector embodiment one;
Figure 18 is the right view of Figure 17;
Figure 21 is the structural representation with four fin connector embodiment two;
Figure 22 is the right view of Figure 21;
Figure 23 is the structural representation with four fin connector embodiment two protruding connectors;
Figure 24 is the right view of Figure 23;
Figure 25 is the structural representation with four fin connector embodiment two recessed connectors;
Figure 26 is the right view of Figure 25.
The specific embodiment
Shown in Fig. 1, Fig. 2 and Figure 21～26, asymmetric profiled-cross-section drilling rod of the present invention, the body of rod 1 and connector 2 by hollow are formed, connector 2 comprises protruding connector 3 and recessed connector 4, the body of rod 1 and connector 2 removably connect, the body of rod 1 is provided with four fins 5 in the axial direction, article four, fin 5 evenly distributes along periphery, fin 5 external surfaces are for being the arc surface in the center of circle with the body of rod 1 axis, fin 5 one sides and the body of rod 1 plane seamlessly transit, the opposite side and the body of rod 1 form strip groove 6, and the body of rod 1 internal cavities is similar to its external structure.Protruding connector 3 comprises three sections of left, center, right, section 7 external structures in a left side are identical with the body of rod 1 internal cavity structures and cooperate with the body of rod 1 grafting, stage casing 8 external structures are identical with the body of rod 1 external structure, right section 9 is conical external thread structure, recessed connector 4 comprises two sections, one section external structure is identical with body of rod external structure, and this intersegmental part cavity is the female cone helicitic texture with protruding connector 3 right section threaded, and another section external structure is identical with the body of rod 1 internal cavity structures and cooperate with the body of rod 1 grafting.
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, be the external structure shape of fin 5 with the body of rod 1 difference shown in Figure 1, fin 5 one sides and the body of rod 1 cambered surface or curved surface seamlessly transit, and the opposite side and the body of rod 1 form strip groove 6.This body of rod 1 is used with the connector 2 shown in Figure 21,22.
As Fig. 7, shown in Figure 8, be that with the body of rod 1 difference shown in Figure 1 internal cavities is cylindrical, two ends are the internal thread pyramidal structure.
As Fig. 9, shown in Figure 10, be that with as shown in Figure 3, Figure 4 the body of rod 1 difference internal cavities is cylindrical, two ends are the internal thread pyramidal structure.
As Figure 11, shown in Figure 12, and be that as Fig. 5, the body of rod 1 difference shown in Figure 6 internal cavities is cylindrical, two ends are the internal thread pyramidal structure.
As Figure 13, shown in Figure 14, the body of rod 1 is provided with three fins 5 in the axial direction, article three, fin 5 evenly distributes along periphery, fin 5 external surfaces are for being the arc surface in the center of circle with the body of rod 1 axis, fin 5 one sides and the body of rod 1 plane seamlessly transit, the opposite side and the body of rod 1 form strip groove 6, and the body of rod 1 internal cavities is similar to its external structure.The connector of this body of rod 1 correspondence is used with the connector 2 shown in the Figure 21,22 with three fins 5.
As Figure 15, Figure 16, Figure 17 and shown in Figure 180, be the external structure shape of fin 5 with the body of rod 1 difference shown in Figure 13,14, fin 5 one sides and the body of rod 1 cambered surface or curved surface seamlessly transit, and the opposite side and the body of rod 1 form strip groove 6.The connector of this body of rod 1 correspondence is used with the connector 2 shown in the Figure 21,22 with three fins 5.
As Figure 19, shown in Figure 20, connector 2 comprises that two ends are the tapered thread structure, can be spirally connected with the body of rod 1 two ends internal cavities shown in Fig. 7～12, and the external structure of mid portion is identical with the body of rod 1 external structure.
The internal cavities shape of the body of rod with three fins 5 of Figure 13～shown in Figure 180 can be cylindric, and three fins, 5 connectors 2 that have that this body of rod 1 is identical with the form of structure shown in Figure 19,20 are used.
Claims (5)
1, asymmetric profiled-cross-section drilling rod, the body of rod and connector by hollow are formed, the body of rod and connector removably connect, it is characterized in that: the described body of rod be provided with in the axial direction number more than or equal to two, smaller or equal to eight fins, the fin external surface is for being the arc surface in the center of circle with body of rod axis, and fin one side and the body of rod form the strip groove.
2, asymmetric profiled-cross-section drilling rod according to claim 1, it is characterized in that: described fin number more than or equal to three, smaller or equal to six, fin opposite side and body of rod plane, cambered surface or curved surface seamlessly transit, and body of rod internal cavities cross section is and its external structure similar shapes.
3, asymmetric profiled-cross-section drilling rod according to claim 2, it is characterized in that: described connector comprises protruding connector and recessed connector, protruding connector comprises three sections of left, center, right, section external structure in a left side is identical with body of rod internal cavity structures and cooperate with body of rod grafting, the stage casing external structure is identical with body of rod external structure, and right section is conical external thread structure; Recessed connector comprises two sections, and one section external structure is identical with body of rod external structure, and this intersegmental part cavity is the female cone helicitic texture with the right section of protruding connector threaded, and another section external structure is identical with body of rod internal cavity structures and cooperate with body of rod grafting.
4, asymmetric profiled-cross-section drilling rod according to claim 2, it is characterized in that: described body of rod internal cavities is cylindrical, the cavity two ends are provided with the little tapered thread of outer imperial palace.
5, asymmetric profiled-cross-section drilling rod according to claim 4 is characterized in that: described connector comprises that two ends are the tapered thread structure that can be spirally connected with body of rod two ends internal cavities, and the external structure of mid portion is identical with body of rod external structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100642233A CN101481999B (en) | 2009-02-17 | 2009-02-17 | Drilling rod with asymmetric special-shaped cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100642233A CN101481999B (en) | 2009-02-17 | 2009-02-17 | Drilling rod with asymmetric special-shaped cross section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101481999A true CN101481999A (en) | 2009-07-15 |
| CN101481999B CN101481999B (en) | 2012-07-04 |
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ID=40879270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100642233A Active CN101481999B (en) | 2009-02-17 | 2009-02-17 | Drilling rod with asymmetric special-shaped cross section |
Country Status (1)
| Country | Link |
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| CN (1) | CN101481999B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261225A (en) * | 2011-08-08 | 2011-11-30 | 平顶山市中矿机械制造有限公司 | Multifunctional outburst-prevention drill rod |
| CN104405294A (en) * | 2014-10-29 | 2015-03-11 | 成都科盛石油科技有限公司 | Petroleum hollow drill rod convenient for scrap guide |
| CN108442891A (en) * | 2018-05-21 | 2018-08-24 | 河南理工大学 | A kind of unsymmetrical section spiral groove drilling rod |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3338069A (en) * | 1965-03-11 | 1967-08-29 | Exxon Production Research Co | Rotary drill collar |
| GB2314358B (en) * | 1996-06-18 | 2000-10-11 | George Swietlik | Cutting bed impeller |
| CN201103347Y (en) * | 2007-12-02 | 2008-08-20 | 田建伟 | Circular arc shaped rib gas-drawing drilling rod |
| CN201391235Y (en) * | 2009-02-17 | 2010-01-27 | 河南理工大学 | Asymmetric shaped cross-section drill pipe |
-
2009
- 2009-02-17 CN CN2009100642233A patent/CN101481999B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261225A (en) * | 2011-08-08 | 2011-11-30 | 平顶山市中矿机械制造有限公司 | Multifunctional outburst-prevention drill rod |
| CN104405294A (en) * | 2014-10-29 | 2015-03-11 | 成都科盛石油科技有限公司 | Petroleum hollow drill rod convenient for scrap guide |
| CN108442891A (en) * | 2018-05-21 | 2018-08-24 | 河南理工大学 | A kind of unsymmetrical section spiral groove drilling rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101481999B (en) | 2012-07-04 |
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Effective date of registration: 20180816 Address after: 252600 Chen Fen Village, Xinhua office, Linqing City, Liaocheng, Shandong Patentee after: Shandong benefiting mining and Mining Technology Co., Ltd. Address before: 454000 energy college, Henan Polytechnic University, 2001 Century Avenue, Jiaozuo high tech Zone, Henan Patentee before: Henan Polytechnic University |
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| TR01 | Transfer of patent right |