CN101481999B - Drilling rod with asymmetric special-shaped cross section - Google Patents
Drilling rod with asymmetric special-shaped cross section Download PDFInfo
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- CN101481999B CN101481999B CN2009100642233A CN200910064223A CN101481999B CN 101481999 B CN101481999 B CN 101481999B CN 2009100642233 A CN2009100642233 A CN 2009100642233A CN 200910064223 A CN200910064223 A CN 200910064223A CN 101481999 B CN101481999 B CN 101481999B
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Abstract
The invention discloses an asymmetric deformed-section drill pipe which is composed of a hollow pipe body and a connecting piece which are detachably connected; beads which are more than or equal to two and less than or equal to eight are arranged on pipe body along the pipe body, and the outer surface of the bead is an arc surface which takes an axle wire of the pipe body as a circle center, and one side of the bead and the pipe body form a long-strip groove. The drill pipe has reasonable design and simple structure; drill adsorption and drill blocking can not easily happen according to the principle of vortex flow caused by rotation of the deformed-section rigid body in loose coal slag, therefore, the drill pipe is safe and reliable, slag-off effect is greatly improved, thus being beneficial to improving drilling depth, shortening drilling time and improving working efficiency and pore-forming efficiency and being worth of being popularized and applied in coal mine 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; The drilling rod that generally adopts 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; Be employed in light face round bur bar and carve two kinds of ways of helicla flute or welding horizontal steel plate, in weak seam, drilling 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 is used 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, and the body of rod and connector removably connect, the said body of rod on axial direction, be provided with 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.
Said 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 shapes similar.，
Said 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.
Said body of rod internal cavities is cylindrical, and the cavity two ends are provided with the little tapered thread of outer imperial palace.
Said 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 cause along the mobile principle of 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 let the deslagging air communication cross, air-flow or current are sent into through endoporus, and cinder is discharged through slagging channel; Reduce the rotational resistance of drilling rod, be not prone to the phenomenon of inhaling brill, bit freezing, safe and reliable; Greatly improve the deslagging effect, help improving drilling depth, shorten drilling time; Increase work efficiency and become porosity high, 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 is made up of the body of rod 1 and the connector 2 of hollow; Connector 2 comprises protruding connector 3 and recessed connector 4; The body of rod 1 removably connects with connector 2, and the body of rod 1 is provided with 5, four fins of four fins 5 and evenly distributes along periphery on axial direction; 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, and the opposite side and the body of rod 1 form strip groove 6, and the body of rod 1 internal cavities is similar with 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 peg graft with the body of rod 1 and to cooperate, and stage casing 8 external structures are identical with the body of rod 1 external structure, and the right side sections 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.
Like 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 Figure 21, the connector shown in 22 2.
Like 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.
Like Fig. 9, shown in Figure 10, and be that like Fig. 3, the body of rod 1 difference shown in Figure 4 internal cavities is cylindrical, two ends are the internal thread pyramidal structure.
Like Figure 11, shown in Figure 12, and be that like Fig. 5, the body of rod 1 difference shown in Figure 6 internal cavities is cylindrical, two ends are the internal thread pyramidal structure.
Like Figure 13, shown in Figure 14; The body of rod 1 is provided with three fins 5 on axial direction; Article three, fin 5 evenly distributes along periphery, and fin 5 external surfaces are for being the arc surface in the center of circle with the body of rod 1 axis, and 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 with its external structure.The corresponding connector of this body of rod 1 with have Figure 21 of three fins 5, the connector shown in 22 2 is used.
Like Figure 15, Figure 16, Figure 17 and shown in Figure 180, be the external structure shape of fin 5 with Figure 13, the body of rod 1 difference shown in 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 corresponding connector of this body of rod 1 with have Figure 21 of three fins 5, the connector shown in 22 2 is used.
Like 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 this body of rod 1 and Figure 19, three fins, 5 connectors 2 that have that the form of structure shown in 20 is identical are used.
Claims (1)
1. asymmetric profiled-cross-section drilling rod is made up of the body of rod and the connector of hollow, and the body of rod and connector removably connect; The said body of rod on axial direction, be provided with number more than or equal to three, smaller or equal to six 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, and it is characterized in that: said 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;
Said fin opposite side and body of rod plane or curved surface seamlessly transit, and body of rod internal cavities cross section is and its external structure shapes similar.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN101481999A CN101481999A (en) | 2009-07-15 |
| CN101481999B true CN101481999B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100642233A Active CN101481999B (en) | 2009-02-17 | 2009-02-17 | Drilling rod with asymmetric special-shaped cross section |
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Families Citing this family (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 |
| CN104405294B (en) * | 2014-10-29 | 2016-06-29 | 成都科盛石油科技有限公司 | It is easy to the oil hollow drill of dust lead |
| CN108442891A (en) * | 2018-05-21 | 2018-08-24 | 河南理工大学 | A kind of unsymmetrical section spiral groove drilling rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3338069A (en) * | 1965-03-11 | 1967-08-29 | Exxon Production Research Co | Rotary drill collar |
| US5937957A (en) * | 1996-06-18 | 1999-08-17 | Swietlik; George | 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 special-section drill rod |
-
2009
- 2009-02-17 CN CN2009100642233A patent/CN101481999B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3338069A (en) * | 1965-03-11 | 1967-08-29 | Exxon Production Research Co | Rotary drill collar |
| US5937957A (en) * | 1996-06-18 | 1999-08-17 | Swietlik; George | 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 special-section drill rod |
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| Publication number | Publication date |
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| CN101481999A (en) | 2009-07-15 |
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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 |