Rib drill rod
A technology of drill pipes and ribs, which is applied in the direction of drill pipes, drill pipes, drilling equipment, etc., can solve the problems of manual unscrewing, reduced construction efficiency, troublesome screwing and unloading of auger drill pipes, etc., to save labor and material costs , Improve construction efficiency, good effect of slag discharge
Inactive Publication Date: 2011-03-30
HUAINAN MINING IND GRP
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Problems solved by technology
[0003] An existing auger drill pipe has narrow and thin helical blades and has a good slagging effect during the drilling process. However, the auger drill pipe has a large rotation resistance and is prone to breakage of the drill pipe. It is only suitable for relatively simple It is difficult to unscrew and unscrew the auger pipe manually, and it is difficult to unscrew it with a quick unscrewing device, so that the construction efficiency is low, and the material and labor input are large.
[0004] An existing flat outer drill pipe is made of seamless steel pipe with a smooth surface, which can be applied to relatively hard formations and can be quickly unscrewed by a unscrewing device, but the outer flat drill pipe is used in soft formations or In the case of broken ground, due to the large amount of rock dust during construction, it is difficult to discharge slag, which may easily cause drilling accidents and reduce construction efficiency
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[0013] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0014] figure 1 A schematic diagram of the rib drill pipe structure provided by an embodiment of the present invention, such as figure 1 As shown, the rib drill pipe includes: a rod body 1 and a helical blade 2, the width δ of the helical blade 2 is 18mm±0.5mm, and the thickness h can be set according to the overall outer diameter of the rib drill pipe, usually about 7mm.
[0015] Specifically, the rod body 1 of the rib drill rod can be a core tube of a certain material, and a helical blade 2 with a width δ of 18 mm and a thickness h of 7 mm is helically welded on the surface of the core tube, wherein the error range of the width and thickness can be Between ±0.5mm. It can be understood that the rod body 1 and the helical blade 2 can also be integrally formed during casting. Because the helical blade 2 is wide and h...
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The invention relates to a rib drill rod. The drill rod comprises a rod body and a helical blade, wherein the width of the helical blade is 18mm minus or plus 0.5mm. The rib drill rod of the invention has small rotary resistance in drilling process, deslagging effect is good, and screwing and unscrewing efficiency is high, thus being applicable to various stratums.
Description
technical field [0001] The invention relates to mining technology, in particular to a rib drill pipe. Background technique [0002] In the underground construction process of coal mine or other mining, it is usually necessary to adopt a drilling rig to drive a drill pipe for drilling construction. [0003] An existing auger drill pipe has narrow and thin helical blades and has a good slagging effect during the drilling process. However, the auger drill pipe has a large rotation resistance and is prone to breakage of the drill pipe. It is only suitable for relatively simple It is difficult to unscrew and unscrew the auger pipe manually, and it is difficult to unscrew it with a quick unscrewing device, so that the construction efficiency is low, and the material and labor input are large. [0004] An existing flat outer drill pipe is made of seamless steel pipe with a smooth surface, which can be applied to relatively hard formations and can be quickly unscrewed by a unscrewi...
Claims
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IPC IPC(8): E21B17/22
Inventor 方良才崔兴安赵俊峰张锤金陈功胜程合玉石德洲高岭沙甫
Owner HUAINAN MINING IND GRP