WO2017078311A1 - Trépan d'excavation - Google Patents

Trépan d'excavation Download PDF

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Publication number
WO2017078311A1
WO2017078311A1 PCT/KR2016/011952 KR2016011952W WO2017078311A1 WO 2017078311 A1 WO2017078311 A1 WO 2017078311A1 KR 2016011952 W KR2016011952 W KR 2016011952W WO 2017078311 A1 WO2017078311 A1 WO 2017078311A1
Authority
WO
WIPO (PCT)
Prior art keywords
bit
stopper
head portion
wing
bit head
Prior art date
Application number
PCT/KR2016/011952
Other languages
English (en)
Korean (ko)
Inventor
계진태
Original Assignee
(주)씨엔피텍
동림산업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)씨엔피텍, 동림산업 주식회사 filed Critical (주)씨엔피텍
Publication of WO2017078311A1 publication Critical patent/WO2017078311A1/fr

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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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • 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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Definitions

  • the present invention relates to an excavation bit, and more particularly, to an excavation bit that enables drilling of narrow and wide holes as needed with a single bit without replacing the bit or equipment.
  • the steel pipe grouting method is an underground excavation auxiliary method that improves the order while reinforcing the ground.
  • the steel pipe is installed on the ground and the grout material is injected into the inside of the steel pipe. It is characterized by increasing the shear strength of soil and rock, and it is very advantageous in terms of constructability and economical efficiency because injection is performed in steel pipes.
  • the steel pipe grouting method is widely used as a part of the tunnel reinforcing method in recognition of its effect.
  • the steel pipe grouting method includes the steps of drilling the ground, inserting a steel pipe provided with a strainer (groove injection part) in the drilled hole, inserting a sealing material between the steel pipe and the hole, and installing a packer. While the cement is made of.
  • this method has a problem in that it is difficult to insert the steel pipe due to the collapse of the drilling hole or the mixing of foreign matters in the soft soil ground in which the drilling hole is not naturally maintained because it proceeds by inserting the steel pipe after the drilling.
  • the conventional drilling bit can be drilled with only one width.
  • the drilling bit and the drilling bit may be used. After lifting all the connected equipment, there was a need to replace all the drilling bits or equipment, such as replacing the drill hole drilling bit.
  • An object of the present invention is to provide a drilling bit that can be drilled in various widths, as needed, as well as narrow width ball using a single drilling bit to improve the conventional problem.
  • these problems are exemplary, and the scope of the present invention is not limited thereby.
  • the tip head is formed, the bit head portion is formed with a plurality of stopper receiving grooves in the outer diameter surface, the sliding shaft is formed at the rear end;
  • the body is elongated and formed in the longitudinal direction, and both sides of the projections are formed, the projections are inserted along the guide grooves formed in the stopper receiving groove of the bit head portion is expanded and folded near the cutting edge of the bit head portion A wing bit possibly installed;
  • Axial rotation is possible, and when the shaft is rotated at the first angle with respect to the rotational direction of the bit head, and the first sliding forward, the wing bit protrudes outward to maintain the unfolded state
  • a first stopper having a first length inserted deeply into the stopper receiving groove to contact the wing bit is installed at one side to drill the wide mouth, and retracts based on the bit head, and then the shaft at the second angle.
  • the secondary sliding advance the wing bit is accommodated in the stopper receiving groove in the folded state to puncture the narrow hole
  • an outer cylinder member having a second stopper of a second length shorter than the first length, which is inserted into the stopper receiving groove on the other side so as to form a folding space of the wing bit.
  • a locking pin is installed to be coupled to the neck portion of the sliding shaft portion through the through hole of the outer cylinder member so that the sliding shaft portion of the bit head portion is not separated from the outer cylinder member, the bit head portion
  • a polygonal groove portion may be formed in the neck portion by a sliding length to enable forward and backward rotation and an angle of 90 degrees.
  • the neck portion may be partially formed on the outer diameter surface of the sliding shaft portion so that the bit head portion can be rotated at an angle of 90 degrees.
  • the stopper receiving groove is formed in the outer diameter surface of the bit head portion in the axial direction, each of the first receiving groove, the second receiving groove, the third receiving groove and the fourth receiving is disposed at an angle of 90 degrees
  • the guide groove may be formed to be long in the longitudinal direction from an inlet portion to an inner side surface of the first accommodation groove and the third accommodation groove positioned on the opposite side thereof, and may have a rounded end portion thereof.
  • the wing bit has a rounded surface formed at a rear end thereof close to the shaft protrusion, and the first stopper has a first concave corresponding to the rounded surface so as to be in contact with the rounded surface at the front end.
  • a surface is formed, and the second stopper may have a second concave surface corresponding to the distal end of the wing bit so as to accommodate the distal end of the wing bit.
  • FIG. 1 is a perspective view showing a drilling bit in accordance with some embodiments of the present invention.
  • FIG. 2 is an exploded perspective view of parts showing the drilling bit of FIG. 1.
  • FIG. 2 is an exploded perspective view of parts showing the drilling bit of FIG. 1.
  • FIG. 3 is a rear perspective view showing the bit head portion of the drilling bit of FIG.
  • FIG. 4 is a perspective view showing a wing bit of the drilling bit of FIG.
  • FIG. 5 is a perspective view illustrating an outer cylinder member of the drilling bit of FIG. 1.
  • FIG. 6 is a perspective view illustrating a coupling state of a bit head part and a locking pin of the drilling bit of FIG. 1.
  • FIG. 7 is a side view illustrating a wide hole drilling state of the drilling bit of FIG. 1.
  • FIG. 8 is a side view illustrating a narrow-hole punching state of the drilling bit of FIG. 1.
  • first, second, etc. are used herein to describe various members, parts, regions, layers, and / or parts, these members, parts, regions, layers, and / or parts are defined by these terms. It is obvious that not. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Thus, the first member, part, region, layer or portion, which will be discussed below, may refer to the second member, component, region, layer or portion without departing from the teachings of the present invention.
  • top or “above” and “bottom” or “bottom” may be used herein to describe the relationship of certain elements to other elements as illustrated in the figures. It may be understood that relative terms are intended to include other directions of the device in addition to the direction depicted in the figures. For example, if the device is turned over in the figures, elements depicted as present on the face of the top of the other elements are oriented on the face of the bottom of the other elements. Thus, the exemplary term “top” may include both “bottom” and “top” directions depending on the particular direction of the figure. If the device faces in the other direction (rotated 90 degrees relative to the other direction), the relative descriptions used herein can be interpreted accordingly.
  • FIG. 1 is a perspective view showing a drilling bit 100 according to some embodiments of the present invention.
  • 2 is an exploded perspective view of parts showing the excavation bit 100 of FIG. 1.
  • the drilling bit 100 includes a bit head 10, a wing bit 20, and an outer cylinder member 30. It may include.
  • the bit head portion 10 has a tip drilling surface 11 is formed, a plurality of stopper receiving grooves (H1) (H2) (H3) (H4) is conformally disposed on the outer diameter surface, the sliding shaft portion ( 12) may be a kind of metal block formed.
  • the tip drilling surface 11 may be provided with hemispherical cemented carbide tips to facilitate the excavation.
  • bit head portion 10 may be formed, for example, a working fluid inlet hole or a working fluid discharge groove. Therefore, during drilling, a working fluid such as air or water is introduced into the working fluid inlet hole to reduce friction or impact, and the excavated foreign matters can be easily discharged to the outside along the working fluid discharge groove.
  • the number or shape of the working fluid inlet hole or the working fluid discharge groove may vary.
  • FIG. 3 is a rear perspective view illustrating the bit head portion 10 of the drilling bit 100 of FIG. 1.
  • the stopper accommodation grooves H1, H2, H3, and H4 of the bit head portion 10 may have an outer diameter surface of the bit head portion 10. It may include a first receiving groove (H1), the second receiving groove (H2), the third receiving groove (H3) and the fourth receiving groove (H4) which is formed in the axial direction elongated, respectively is disposed at 90 degrees. .
  • FIG. 4 is a perspective view showing the wing bit 20 of the drilling bit 100 of FIG.
  • the wing bit 20 has a body 21 extending in the longitudinal direction, and a protrusion 22 is formed on both sides thereof, and the protrusion 22 is the bit head portion ( 10 are inserted along the guide grooves G formed in the stopper receiving grooves H1 and H3 of 10), and are provided to be unfolded and folded near the tip digging surface 11 of the bit head portion 10. It may be a wing-shaped metal block.
  • the number of the wing bits 20 is not limited to two, and at least one or three, four, five, six, etc. may be installed.
  • a wing bit excavation surface may be formed on the wing bit 20, and at least one cemented carbide tip may be installed on the wing bit excavation surface.
  • the wing bit 20 can be unfolded from the bit head portion 10 when drilling the wide hole, and can be folded in the direction of the bit head portion 10 when drilling the narrow hole. have.
  • FIG. 5 is a perspective view illustrating the outer cylinder member 30 of the drilling bit 100 of FIG. 1.
  • the outer cylinder member 30 accommodates the sliding shaft portion 12 of the bit head portion 10 so as to be axially moved back and forth relative to the bit head portion 10.
  • a shaft portion accommodating space (A) is formed, and the shaft rotation is possible at a first angle and a second angle with respect to the bit head portion 10, and the shaft at a first angle with respect to the bit head portion 10
  • the wing bit 20 protrudes in the outward direction of the bit head portion 10 to the stopper receiving groove (H1) (H3) on one side to maintain the unfolded state
  • H1 stopper receiving groove
  • the wing bit 20 of the stopper receiving groove (H1) (H3) in the folded state A second shorter than the first length (L1) that is inserted into the stopper receiving groove (H1) (H3) on the other side to be accommodated therein to form a folding space (B) of the wing bit 20
  • It may be a generally cylindrical metal block on which the second stopper 32 of the length L2 is installed. Accordingly, the outer cylinder member 30 may be rotated forward and backward relative to the bit head portion 10.
  • FIG. 6 is a perspective view illustrating a coupling state of the bit head part 10 and the locking pin P of the drilling bit 100 of FIG. 1.
  • the sliding shaft 12 of the bit head portion 10 passes through the through hole H of the outer cylinder member 30 so as not to be separated from the outer cylinder member 30.
  • a locking pin P may be installed to engage the neck 13 of the shaft 12.
  • the slot head portion by the sliding length (L3) in the neck portion 13 so that the bit head portion 10 can be rotated forward and backward and 90 degrees 14 can be formed.
  • the neck 13 may be partially formed on the outer diameter surface of the sliding shaft 12 so that the bit head 10 can be rotated at a 90 degree angle.
  • the bit head portion 10 can be pivotally limited only within a constant angle, the first angle to the second angle, that is, within a 90 degree angle.
  • the wing bit 20 has a round surface 23 formed at a rear end thereof close to the shaft protrusion 22, and the first stopper 31 is A first concave surface F1 corresponding to the round surface 23 may be formed at a tip thereof so as to be in contact with the round surface 23.
  • the first concave surface F1 of the first stopper 31 is in close contact with the rounded surface 23 of the wing bit 20 when the wing bit 20 is unfolded and fixed, so that the wing bit 20 is fixed. ), And the outer cylinder member 30 can support the wing bit 20 very firmly.
  • the second stopper 32 may have a second concave surface F2 corresponding to the distal end of the wing bit 20 to accommodate the distal end of the wing bit 20.
  • the wing bit 20 when the wing bit 20 is folded, the wing bit 20 is inserted into the first receiving groove H1 and the third receiving groove H3 while facing the second stopper 32. It can be accommodated so as not to protrude.
  • FIG. 7 is a side view illustrating a wide hole drilling state of the drilling bit 100 of FIG. 1
  • FIG. 8 is a side view illustrating a narrow hole drilling state of the drilling bit 100 of FIG. 1.
  • the outer cylinder member 30 is After the shaft is rotated at a first angle with respect to the bit head portion 10 and the first sliding forward, the two first stoppers 31 having relatively long lengths are provided with the wing bits 20. Inserted into the first receiving groove (H1) and the third receiving groove (H3), respectively, in close contact with the two wing bits 20 can be firmly supported so that the wing bit 20 is no longer rotated backwards. have.
  • the second stopper 32 having a relatively short length may include the second accommodation groove H2 and the fourth accommodation groove where the wing bits 20 are not installed. H4) may be temporarily inserted into the standby.
  • the wing bit 20 is accommodated in the stopper receiving groove (H1) (H3) does not protrude to the outside.
  • the first stopper 31 having a relatively long length is temporarily inserted into the second accommodating groove H2 and the fourth accommodating groove H4 where the wing bits 20 are not installed. Can be.
  • the operator drills the wide-hole while rotating the outer cylinder member 30 clockwise with the bit head portion 10, and then reverses the outer cylinder member 30, and then rotates the outer cylinder member 30.
  • the first stopper 31 or the second stopper 32 may be selectively inserted into the first accommodating groove H1 and the third accommodating groove H3. In this way, narrow holes can be drilled if necessary.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)

Abstract

La présente invention concerne un trépan d'excavation, ledit trépan d'excavation pouvant comporter: une partie de tête de trépan sur laquelle est formée une surface d'excavation d'extrémité pointue, une pluralité de rainures de logement pour butées à angles égaux étant disposées sur sa surface de circonférence extérieure, et une partie d'arbre coulissant étant formée dans sa partie arrière; un trépan à ailettes doté d'un corps formé de manière allongée dans une direction longitudinale et de protubérances d'arbre formées dans ses deux surfaces latérales, les protubérances d'arbre étant insérées le long de rainures de guidage formées dans les rainures de logement pour butées de la partie de tête de trépan et installées de façon à pouvoir être repliées/dépliées au voisinage de la surface d'excavation d'extrémité pointue de la partie de tête de trépan; et un élément de coque extérieure sur un côté duquel est installée une première butée, celle-ci étant insérée profondément dans les rainures de logement pour butées et en contact avec le trépan à ailettes de telle sorte que le trépan à ailettes puisse dépasser de la partie de tête de trépan vers l'extérieur tout en maintenant un état déplié, et présentant une première longueur, et une deuxième butée installée d'un autre côté de celui-ci, celle-ci étant insérée peu profondément dans les rainures de logement pour butées de façon à ménager un espace pour le trépan à ailettes replié, et présentant une deuxième longueur qui est inférieure à la première longueur.
PCT/KR2016/011952 2015-11-02 2016-10-24 Trépan d'excavation WO2017078311A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150153233A KR101705284B1 (ko) 2015-11-02 2015-11-02 굴착용 비트
KR10-2015-0153233 2015-11-02

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WO2017078311A1 true WO2017078311A1 (fr) 2017-05-11

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WO (1) WO2017078311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109681123A (zh) * 2018-11-28 2019-04-26 山东唐口煤业有限公司 一种直径可调式钻头及分段扩孔方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102132070B1 (ko) * 2018-04-30 2020-07-08 김규상 원형관 중굴용 확장 굴착장치
KR20210107329A (ko) * 2020-02-24 2021-09-01 김규상 원형관 중굴용 굴착장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090054192A (ko) * 2007-11-26 2009-05-29 임사인 굴착 해머용 비트
KR101229209B1 (ko) * 2012-08-13 2013-02-01 이수영 하나의 굴착공에서 일반,확공을 병행할 수 있는 해머비트 및 이를 이용한 시공방법
KR20140014419A (ko) * 2012-07-24 2014-02-06 이광익 수축 확장이 용이한 해머비트
KR20150110996A (ko) * 2014-03-24 2015-10-05 (주)씨엔피텍 굴착용 비트
KR20150110997A (ko) * 2014-03-24 2015-10-05 (주)씨엔피텍 굴착용 비트

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090054192A (ko) * 2007-11-26 2009-05-29 임사인 굴착 해머용 비트
KR20140014419A (ko) * 2012-07-24 2014-02-06 이광익 수축 확장이 용이한 해머비트
KR101229209B1 (ko) * 2012-08-13 2013-02-01 이수영 하나의 굴착공에서 일반,확공을 병행할 수 있는 해머비트 및 이를 이용한 시공방법
KR20150110996A (ko) * 2014-03-24 2015-10-05 (주)씨엔피텍 굴착용 비트
KR20150110997A (ko) * 2014-03-24 2015-10-05 (주)씨엔피텍 굴착용 비트

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109681123A (zh) * 2018-11-28 2019-04-26 山东唐口煤业有限公司 一种直径可调式钻头及分段扩孔方法
CN109681123B (zh) * 2018-11-28 2023-09-29 山东唐口煤业有限公司 一种直径可调式钻头及分段扩孔方法

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