WO2018208008A1 - 철근 콘크리트 구조물 파쇄용 에어 해머 비트 - Google Patents

철근 콘크리트 구조물 파쇄용 에어 해머 비트 Download PDF

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Publication number
WO2018208008A1
WO2018208008A1 PCT/KR2018/003525 KR2018003525W WO2018208008A1 WO 2018208008 A1 WO2018208008 A1 WO 2018208008A1 KR 2018003525 W KR2018003525 W KR 2018003525W WO 2018208008 A1 WO2018208008 A1 WO 2018208008A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting block
enlarged diameter
diameter portion
reinforced concrete
bit
Prior art date
Application number
PCT/KR2018/003525
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
박영택
Original Assignee
박영택
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 박영택 filed Critical 박영택
Priority to CN201880030448.4A priority Critical patent/CN110637138B/zh
Priority to JP2019561223A priority patent/JP6889823B2/ja
Publication of WO2018208008A1 publication Critical patent/WO2018208008A1/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B28D1/146—Tools therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/08—Wrecking of buildings

Definitions

  • the present invention relates to an air hammer bit used to crush reinforced concrete structures, characterized in that the cutting function is provided to easily cut the steel bars included in the concrete structure during the crushing process.
  • the ground excavator used for the ground excavation is to excavate the ground by using the screw shaft rotated by the motor. If the hard rock layer is encountered during the excavation of the ground, the excavation work is not possible with the screw shaft alone. Installing an air hammer drill having a rock drilling bit (Bit) and using this to crush the rock layer to proceed the excavation work.
  • Such a conventional rock drilling bit 100 is composed of a bit shaft 110 and the enlarged diameter portion 120 formed at the lower end thereof, as shown in Figure 1, the outer peripheral surface of the enlarged diameter portion 120
  • a guide groove 220 is provided to be a passage for carrying, and the lower surface and the outer circumferential surface of the enlarged diameter portion are inserted and fixed to the enlarged diameter portion so that a plurality of carbide tips 210 protrude.
  • the cemented carbide tip 210 is a cemented carbide that is generally used to maintain sufficient durability and strength as a site that directly contacts the rock layer when the rock layer is crushed.
  • the present invention created to solve the above problems is to provide an air hammer bit of a new structure that can perform a fast and safe crushing work by cutting the steel bars included in the structure in the process of crushing the reinforced concrete structure It is done.
  • the present invention relates to an air cylinder operated by pneumatic, a piston for vertical movement in the inside of the air cylinder, and a bit of the air hammer for drilling the reinforced concrete structure through vibration and rotation up and down in combination with the piston, the body of the bit A bit axis 100 which serves; An enlarged diameter part 200 having a diameter extended from a lower end of the bit axis 100; A plurality of cemented carbide tips 300 inserted into the surface of the enlarged diameter portion 200 to protrude; And a cutting block 400 detachably coupled to the enlarged diameter part 200 and protruding to the surface of the enlarged diameter part 200 to cut the reinforcing bar in the crushing process of the concrete structure. do.
  • Figure 2 shows a side structure of the specific embodiment of the present invention, along with the AA 'partial section of Figure 3;
  • Figure 3 shows a partial cross-sectional view of the lower surface and part of the cutting block 400 of a specific embodiment of the present invention.
  • FIG 4 shows that the left and right widths of the cutting block 400 are tapered.
  • FIGS. 2 to 4 are drawings related to the present invention except for FIG.
  • the present invention relates to an air cylinder operated by pneumatic, a piston that moves up and down inside the air cylinder, and a bit of an air hammer coupled to the piston to crush the reinforced concrete structure through vertical vibration and rotation.
  • the present invention includes a bit axis 100, enlarged diameter portion 200, cemented carbide tip 300, and cutting block 400. As shown in FIG.
  • the bit shaft 100 serves as a body of the bit, and the lower end portion of the bit shaft 100 is provided with an enlarged diameter part 200 having an expanded diameter.
  • the lower surface and the outer circumferential surface of the enlarged diameter portion 200 is provided with a guide groove 22 for carrying the crushed crushed material, the guide groove 22 penetrates the bit shaft 100 and the inside of the enlarged diameter portion 200
  • the structure is connected to the air passage 11 can be more conveniently discharged to the outside by the force of the air (Air) that is ejected through the air passage (11).
  • Carbide tip 300 is inserted so that a plurality of protruding on the surface of the enlarged diameter portion 200, such a carbide tip 300 is a site that is in direct contact with the rock contact in the general excavation work is required for strong durability and strength cemented carbide Is produced by.
  • the cemented carbide tip 300 collides directly with the reinforced concrete structure, thereby crushing concrete.
  • Cutting block 400 is detachably coupled to the enlarged diameter portion 200, the upper end of the cutting block 400 protrudes to the surface of the enlarged diameter portion 200 serves to cut the reinforcing bar in the process of crushing the concrete structure.
  • the lower portion of the enlarged diameter portion 200 is composed of a central plane 210 formed in the lower center as shown in Figures 2 and 3 and the inclined surface 220 surrounding the central plane 210, cutting block 400
  • the four cutting blocks 400 are radially arranged along the inclined surface 220 at intervals of 90 degrees.
  • the number of the cutting blocks 400 is not limited to four, but one is considered in consideration of the work site. , Two, three or four or more may be arranged.
  • the cutting block 400 is a lower end inserted into the inclined surface 220 at the upper end exposed to the outside of the inclined surface 220 of the enlarged diameter portion 200 as shown in FIG. It has a cross section which increases in cross section.
  • the inclined surface 220 of the enlarged diameter portion 200 is provided with a cutting block mounting groove 230 of a shape corresponding to the cutting block 400, the cutting block 400 is mounted in the cutting block mounting groove 230
  • the upper end of the cutting block 400 has a front end in the direction in which the enlarged diameter portion 200 rotates higher than the rear end, so as to protrude outward from the inclined surface 220 of the enlarged diameter portion 200 to cut the reinforcing bars in the crushing process. It serves as a cutting blade.
  • the cutting block mounting groove 230 is tapered in a form in which the left and right widths gradually decrease from the upper side of the inclined surface 220 of the enlarged diameter portion 200 to the lower portion that meets the central plane 210, as shown in FIG.
  • the cutting block 400 is also tapered so that the left and right widths gradually decrease toward the center plane 210 of the enlarged diameter part 200 as shown in FIG. 4 to correspond to the cutting block mounting groove 230.
  • the cutting block 400 when the cutting block 400 and the cutting block mounting groove 230 are tapered, the cutting block 400 can be easily pushed and mounted from the upper portion of the cutting block mounting groove 230 to the lower side. As the block 400 is in close contact with the inner surface of the cutting block mounting groove 230, the cutting block 400 may be stably mounted, thereby improving durability of the cutting block 400.
  • the cutting block 400 penetrates through the cutting block 400 in a state in which the cutting block 400 is inserted into the cutting block mounting groove 230 as shown in FIG. 2 or 3 to the bottom surface of the cutting block mounting groove 230. It is fixed by the fastening bolt 410 is fastened to the cutting block 400, the diameter of the through-hole passing through the fixing bolt 410 is processed more easily than the diameter of the fixing bolt 410 to absorb the manufacturing and assembly tolerances To help.
  • the cutting block 400 is provided to maximize the efficiency of the shredding operation by cutting the reinforcing bar when the reinforced concrete structure is shredded.
  • the cutting block 400 of the cutting block mounting groove 230 with the improvement of convenience of the cutting block 400 mounting work
  • the durability of the cutting block 400 and the enlarged diameter part 200 may be improved.
PCT/KR2018/003525 2017-05-11 2018-03-26 철근 콘크리트 구조물 파쇄용 에어 해머 비트 WO2018208008A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880030448.4A CN110637138B (zh) 2017-05-11 2018-03-26 钢筋混凝土结构物破碎用空气锤钻头
JP2019561223A JP6889823B2 (ja) 2017-05-11 2018-03-26 鉄筋コンクリート構造物破砕用エアーハンマービット

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2017-0058732 2017-05-11
KR1020170058732A KR102011791B1 (ko) 2017-05-11 2017-05-11 철근 콘크리트 구조물 파쇄용 에어 해머 비트

Publications (1)

Publication Number Publication Date
WO2018208008A1 true WO2018208008A1 (ko) 2018-11-15

Family

ID=64105611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/003525 WO2018208008A1 (ko) 2017-05-11 2018-03-26 철근 콘크리트 구조물 파쇄용 에어 해머 비트

Country Status (4)

Country Link
JP (1) JP6889823B2 (zh)
KR (1) KR102011791B1 (zh)
CN (1) CN110637138B (zh)
WO (1) WO2018208008A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006326996A (ja) * 2005-05-25 2006-12-07 Hitachi Koki Co Ltd ドリルビット
JP4358164B2 (ja) * 2005-07-20 2009-11-04 株式会社奥村組 穿孔用ビット
JP4514359B2 (ja) * 2001-04-26 2010-07-28 株式会社タンガロイ 掘削用ビット
JP5461253B2 (ja) * 2010-03-16 2014-04-02 新日鐵住金株式会社 鉄筋コンクリート体用削孔機及び鉄筋コンクリート体に削孔する方法
KR101536674B1 (ko) * 2014-03-20 2015-07-14 박영택 교체형비트부를 구비한 에어 해머 비트

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586952Y2 (ja) * 1978-11-16 1983-02-07 三菱マテリアル株式会社 ビツト
JP2734479B2 (ja) * 1989-12-15 1998-03-30 三菱重工業株式会社 コアカツタ
JPH06264677A (ja) * 1993-03-10 1994-09-20 Kowa Sangyo Kk ダウンホールハンマー用の掘削ビット
DE19916975A1 (de) * 1999-04-15 2000-10-19 Hilti Ag Gesteinsbohrer
JP3777890B2 (ja) * 1999-07-28 2006-05-24 三菱マテリアル株式会社 掘削工具
JP2002155692A (ja) * 2000-11-20 2002-05-31 Koken Boring Mach Co Ltd 打撃掘削用ビット及びリトラクトビット
AR044485A1 (es) * 2003-06-12 2005-09-14 Shell Int Research Mecha perforadora con percusion, sistema de perforacion que incluye dicha mecha perforadora y un metodo para perforar un pozo
US9428822B2 (en) * 2004-04-28 2016-08-30 Baker Hughes Incorporated Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components
CN201396073Y (zh) * 2009-03-16 2010-02-03 美国钻采系统(南京)有限公司 补偿式钻进钻头
WO2012039630A1 (en) * 2010-09-21 2012-03-29 Flexidrill Limited Hybrid drill bit
JP5762877B2 (ja) * 2011-06-30 2015-08-12 株式会社 中部ロックドリルサービス 穿孔用ビット、それを用いた掘削装置及びコンクリート構築物、岩石の穿孔方法及び破砕方法
CN203835273U (zh) * 2013-12-23 2014-09-17 中海油安全技术服务有限公司 一种保护面上镶嵌pdc切削齿的空气锤钻头

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4514359B2 (ja) * 2001-04-26 2010-07-28 株式会社タンガロイ 掘削用ビット
JP2006326996A (ja) * 2005-05-25 2006-12-07 Hitachi Koki Co Ltd ドリルビット
JP4358164B2 (ja) * 2005-07-20 2009-11-04 株式会社奥村組 穿孔用ビット
JP5461253B2 (ja) * 2010-03-16 2014-04-02 新日鐵住金株式会社 鉄筋コンクリート体用削孔機及び鉄筋コンクリート体に削孔する方法
KR101536674B1 (ko) * 2014-03-20 2015-07-14 박영택 교체형비트부를 구비한 에어 해머 비트

Also Published As

Publication number Publication date
JP2020521895A (ja) 2020-07-27
JP6889823B2 (ja) 2021-06-18
CN110637138A (zh) 2019-12-31
KR102011791B1 (ko) 2019-08-19
CN110637138B (zh) 2021-11-12
KR20180124364A (ko) 2018-11-21

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