CN103670292A - Mining drill rod device - Google Patents
Mining drill rod device Download PDFInfo
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- CN103670292A CN103670292A CN201310666704.8A CN201310666704A CN103670292A CN 103670292 A CN103670292 A CN 103670292A CN 201310666704 A CN201310666704 A CN 201310666704A CN 103670292 A CN103670292 A CN 103670292A
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- drill rod
- hollow body
- drilling rod
- drill
- taper threads
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Abstract
The invention discloses a mining drill rod device. The drill rod device is formed by mutually connecting a plurality of drill rod bodies. Each drill rod body comprises a hollow body, external taper threads and internal taper threads are arranged at the two ends of the hollow bodies, the joint faces of the external taper threads and the internal taper threads are tapered faces, and the included angles between the joint faces and the perpendicular sections of the hollow bodies range from 20 degrees to 30 degrees. Welding is not needed in the connecting process, a whole drill rod is high in rigidity, capable of resisting wear, and free of water and gas leakage, the drill rod is prevented from being bent or broken due to external force in the drilling process, the drill rod can normally drill in zones with high gas concentration in medium-soft coal beds, and therefore economic benefits of a coal mine are increased, and the accident rate of the coal mine is effectively controlled.
Description
Technical field
The invention belongs to mine equipment technical field, be specifically related to a kind of mining drill lever apparatus.
Background technology
Coal seam across pitch and tendency be generally stratiform, like stratiform spread or bifurcated, compound, pinching, what have is lenticular, bean cotyledon shape, chicken coop shape, beading.The variation of form of coal seam and thickness is that multiple geologic(al) factor causes, in close relations with the geologic setting after coal forming period and coal forming period.Some belongs to the Peat Accumulation initial stage, as uneven in marsh substrate, the inner unbalanced sedimentation in marsh, and river or seawater, to the form of coal seam of the formation such as the erosion of peat horizon and the variation of thickness, claim the primary changes in coal seam; Some belong to peat horizon capped after, the variation of the Shape and thickness that the geologic processes such as fold, fracture, magma are invaded, river washes away cause as being subject to, claim coal seam after changing.Therefore, in recovery process, need directional drilling.
Drilling rod be in drilling tool, connect drill bit, in order to the rod member of transferring power, be mainly used in the fields such as hydrogeologic prospecting, well and oil drilling.Drilling rod is mainly comprised of drill pipe body, internal threaded end, external screw thread end, and internal threaded end and male end portion are located at respectively the two ends of drill pipe body, and internal threaded end and external screw thread end on two drilling rods can be equipped with, and with this, realize the connection of two drilling rods.In order to guarantee the force intensity that is subject to of drilling rod, require drill pipe body must there is certain thickness, the excessive drill pipe body of thickness can increase overall volume and the weight of drilling rod, is not easy to transportation and the dismounting of drilling rod.
Summary of the invention
Technical problem to be solved by this invention is: provide that a kind of hardness is high, wear-resisting, the mining drill lever apparatus of long service life.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of mining drill lever apparatus, described boring rod set is interconnected and is formed by some these parts of drilling rod, described this part of drilling rod comprises hollow body, the two ends of described hollow body are provided with outer cone thread and inside tapered thread, the mating face of described outer cone thread and inside tapered thread is the conical surface, and the angle of described mating face and hollow body vertical cross-section is 20 °～30 °.
On the basis of technique scheme, it is heavy seamless steel pipe that above-mentioned hollow body adopts material.
Compared with prior art, the beneficial effect that the present invention has is:
The present invention is reasonable in design, simple in structure, be convenient to batch production; Drilling rod connects and does not need welding, not only environmental protection, and also connecting portion is compared more difficult fracture of welding, the application life of greatly having improved drilling rod; Drilling rod integral hardness is high, wear-resisting, water-tight, air tight, has avoided drilling rod in drilling process, to be subject to external force and has bent, ruptures, and has further improved the application life of drilling rod; Between drill rod assemblies, be threaded connection in addition, be convenient to integral body and part handling, be conducive to maintenance and the replacing of drilling rod, in the area that middle soft seam gas density is high, can normally creep into, increased the economic benefit in colliery, effectively controlled coal mining accident rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mining drill lever apparatus of the present invention;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As depicted in figs. 1 and 2, a kind of mining drill lever apparatus, described boring rod set is interconnected and is formed by some these parts of drilling rod, described this part of drilling rod comprises hollow body 1, the two ends of described hollow body 1 are provided with outer cone thread 2 and inside tapered thread 3, described outer cone thread 2 is the conical surface with the mating face 4 of inside tapered thread 3, and described mating face 4 is 20 °～30 ° with the angle of hollow body 1 vertical cross-section.It is heavy seamless steel pipe that described hollow body 1 adopts material.
During use, first adopt some drill rod assemblies to connect into the drilling rod of Len req, the drilling rod one end connecting to form is outer cone thread, the other end is inside tapered thread, and inside tapered thread end is assemblied on rig, and outer cone thread end connects drill bit, then start rig, rig drives drilling rod and drill bit to rotate.
Be proven, drilling rod drilling depth of the present invention reaches 8000 meters and there will not be bending, phenomenon of rupture, has greatly improved the application life of drilling rod, has also reduced the number of times that coal mining enterprise stops work and safeguards, has improved the production efficiency of coal mining enterprise.
Those of ordinary skill in the art will be appreciated that, above embodiment is only for the present invention is described, and be not used as limitation of the invention, as long as within the scope of connotation of the present invention, to the variation of the above embodiment, modification, all will drop within the scope of claim of the present invention.
Claims (2)
1. a mining drill lever apparatus, described boring rod set is interconnected and is formed by some these parts of drilling rod, it is characterized in that: described this part of drilling rod comprises hollow body (1), the two ends of described hollow body (1) are provided with outer cone thread (2) and inside tapered thread (3), described outer cone thread (2) is the conical surface with the mating face (4) of inside tapered thread (3), and described mating face (4) are 20 °～30 ° with the angle of hollow body (1) vertical cross-section.
2. a kind of mining drill lever apparatus according to claim 1, is characterized in that: it is heavy seamless steel pipe that described hollow body (1) adopts material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666704.8A CN103670292A (en) | 2013-12-09 | 2013-12-09 | Mining drill rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666704.8A CN103670292A (en) | 2013-12-09 | 2013-12-09 | Mining drill rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103670292A true CN103670292A (en) | 2014-03-26 |
Family
ID=50308982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310666704.8A Pending CN103670292A (en) | 2013-12-09 | 2013-12-09 | Mining drill rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103670292A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1656334A (en) * | 2002-05-31 | 2005-08-17 | 住友金属工业株式会社 | Threaded joint for steel pipes |
| CN200961451Y (en) * | 2006-07-11 | 2007-10-17 | 天津钢管集团有限公司 | Tooth breadth variable inverse trapezia bush screw connection structure |
| US20080017420A1 (en) * | 2004-03-04 | 2008-01-24 | Law Arnold R | Sub Drilling Sub |
| CN101558215A (en) * | 2007-07-19 | 2009-10-14 | 特梅索闭合式股份公司 | Drill pipe with tool joints |
| CN202810689U (en) * | 2012-04-25 | 2013-03-20 | 雷敏 | Mining drill pipe |
-
2013
- 2013-12-09 CN CN201310666704.8A patent/CN103670292A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1656334A (en) * | 2002-05-31 | 2005-08-17 | 住友金属工业株式会社 | Threaded joint for steel pipes |
| US20080017420A1 (en) * | 2004-03-04 | 2008-01-24 | Law Arnold R | Sub Drilling Sub |
| CN200961451Y (en) * | 2006-07-11 | 2007-10-17 | 天津钢管集团有限公司 | Tooth breadth variable inverse trapezia bush screw connection structure |
| CN101558215A (en) * | 2007-07-19 | 2009-10-14 | 特梅索闭合式股份公司 | Drill pipe with tool joints |
| CN202810689U (en) * | 2012-04-25 | 2013-03-20 | 雷敏 | Mining drill pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |