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WO2013081311A1 - Air supplying method for cluster hammer having nozzles installed - Google Patents

Air supplying method for cluster hammer having nozzles installed Download PDF

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Publication number
WO2013081311A1
WO2013081311A1 PCT/KR2012/009297 KR2012009297W WO2013081311A1 WO 2013081311 A1 WO2013081311 A1 WO 2013081311A1 KR 2012009297 W KR2012009297 W KR 2012009297W WO 2013081311 A1 WO2013081311 A1 WO 2013081311A1
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WO
WIPO (PCT)
Prior art keywords
hammer
air
nozzle
cluster
hammers
Prior art date
Application number
PCT/KR2012/009297
Other languages
French (fr)
Korean (ko)
Inventor
이채구
김창록
Original Assignee
창신인터내셔날 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 창신인터내셔날 주식회사 filed Critical 창신인터내셔날 주식회사
Priority to US14/362,107 priority Critical patent/US20140345895A1/en
Publication of WO2013081311A1 publication Critical patent/WO2013081311A1/en

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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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0078—Nozzles used in boreholes

Definitions

  • the present invention relates to an air supply method of a combination hammer provided with a nozzle that can uniformly supply high pressure compressed air to each hammer from a combination hammer (Multi Hammer, Cluster Hammer) which combines two or more hammers. It is about.
  • a combination hammer Multi Hammer, Cluster Hammer
  • the hammer that excavates the ground gains the excavation force by using a fluid such as air or water, and also controls the operation of the hammer.
  • the Utility Model Registration No. 20-0429346 discloses that when the compressed air supported by the air compressor reaches the air hammer through the rotary head and the extension pipe, the piston inside the air hammer is moved up and down. Repeatedly hitting the beat, and the beat breaks through various grounds.
  • the components of the air hammer used here can be divided into chucks, shells, pistons, compressed air distributors, and top subs.
  • the chucks are coupled to the underside of the shell and the air hammers and bits
  • the outer shell surrounds the outer circumferential surface of the piston and facilitates the reciprocating motion of the piston.
  • the compressed air distributor distributes the air for the piston to reciprocate.
  • the air hammer is provided with an excavation bit is installed in the hollow portion of the cylindrical housing constituting the body portion, the lower end of the bit is a number of balls made of cemented carbide material
  • the fixed tooth and the enlarged tooth assembled to extend outward are provided, and thus the bit installed in the hollow part is driven by vertically mounting the housing of the airhammer at the place for excavation.
  • the fixed tooth and the enlarged tooth provided at the lower end of the head unit protrude toward the lower end of the housing), and while the enlarged tooth is extended outward by its own weight, the bit is rotated and sprays high pressure air pressure at the same time, so that Excavation of rock layers has been disclosed.
  • the air or water fluid flows into the inflow passage and is arbitrarily supplied to each hammer through the storage vessel and the internal structure.
  • An object of the present invention is to provide an air supply method of a cluster hammer equipped with a nozzle for smoothly operating the hammer.
  • the air distribution block (1) having air distribution nozzles (3) formed in the lower portion of the air inlet cover (4) into which the air of the combination hammer is introduced Is installed, the hammer 10 is provided in the lower portion of the air distribution block 1, the compressed air passing through the air distribution nozzle 3 is supplied to each hammer 10, the hammer 10
  • the hammer 10 By operating the, even when the hammer 10 mounted on the combination hammer is in the flushing position (flushing position) is characterized in that the combination hammer operates smoothly without causing problems in the operation of other hammers.
  • the present invention has a remarkable effect of smoothly operating the combination hammer without causing a problem in the operation of the other hammer even when the hammer mounted on the cluster hammer is in the flushing position.
  • FIG. 1 is a perspective view of the combination hammer air supply device of the present invention
  • Figure 2 is a combination hammer air supply device assembly of the present invention
  • FIG. 3 is a cross-sectional view of the present invention combination hammer air supply device
  • FIG. 4 is a cross-sectional view of the present invention combination hammer air supply device air distribution nozzle
  • Figure 5 is a combination hammer air supply device air operation experimental photograph of the present invention
  • Air distribution block 2 Air outlet
  • the air distribution block (1) having air distribution nozzles (3) formed in the lower portion of the air inlet cover (4) into which the air of the combination hammer is introduced Is installed, the hammer 10 is provided in the lower portion of the air distribution block 1, the compressed air passing through the air distribution nozzle 3 is supplied to each hammer 10, the hammer 10
  • the hammer 10 By operating the, even when the hammer 10 mounted on the combination hammer is in the flushing position (flushing position) is characterized in that the combination hammer operates smoothly without causing problems in the operation of other hammers.
  • FIG. 1 is a perspective view of the combination hammer air supply device of the present invention
  • Figure 2 is an assembly view of the combination hammer air supply device of the present invention
  • Figure 3 is a cross-sectional view of the combination hammer air supply device of the present invention
  • Figure 4 is a combination hammer air supply device of the present invention air distribution nozzle Sectional drawing
  • Figure 5 is a photograph of the experimental operation of the air hammer combination air supply device of the present invention.
  • the combination hammer air supply device of the present invention is provided with an air distribution block formed with a plurality of air distribution nozzles (orifices) in the lower portion of the air inlet cover through which air is introduced.
  • a plurality of hammers are installed in the lower portion of the air distribution block, and the compressed air passing through the air distribution nozzles is supplied to the respective hammers to operate the hammers.
  • the position of the hammer bit is defined as follows.
  • the hammering position means that the bottom of the bit hits the rock (ground) so that the hammer operates normally.
  • the flushing position means that the bottom of the bit is not closed with the rock and the bit is pushed down from the hammer. In this case, the compressed air supplied to the hammer is discharged to the outside of the hammer without operating the hammer. do.
  • the pneumatic generator of the present invention operates one compressor of 900 CFM / 350 psi capacity.
  • the operation method of the present invention is a case where the nozzle is provided in each hammer, it can be prepared in the case of operating without the nozzle of the prior art.
  • the conventional method of operating without a nozzle will be described.
  • the operating pressure of the hammer is 200 psi when branched from one compressor having a capacity of 900 CFM / 350 psi and supplied to each hammer. do.
  • the operating pressure supplied to each hammer through the nozzle branched from one compressor having a capacity of 900 CFM / 350 psi is 200 psi.
  • the three hammers operated normally, while the operating pressure of the three hammers was maintained at 200 psi even though one hammer was flushed.
  • the diameter Dn of the nozzle determines the maximum amount of air passing through the nozzle based on the amount of air consumption at the target operating pressure of the hammer, and the diameter Dn of the nozzle is determined based on the determined maximum amount of air.
  • the method of determining the maximum amount of air passing through the nozzle based on the amount of air consumption at the target operating pressure, and the method of determining the diameter Dn of the nozzle based on the determined maximum amount of air is easily determined using a general hydrodynamic formula. Since it is a part, detailed description of the calculation method is omitted.
  • the present invention has a remarkable effect of smoothly operating the combination hammer without causing a problem in the operation of the other hammer even when the hammer mounted on the cluster hammer is in the flushing position.

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

Abstract

The present invention relates to an air supplying method for a cluster hammer having a nozzle installed, wherein: an air distributing block (1) defining an air distributing nozzle (3) is installed on a lower portion of an air inlet cover (4) in which air for the cluster hammer enters; the hammers (10) are respectively installed on a lower portion of the air distributing block (1); and pressurized air that passes through the air distributing nozzle (3) is supplied to each of the hammers (10), after which the hammers (10) are operated. Even when a hammer (10) mounted on the cluster hammer is in a flushing position, the hammer does not cause problems in the operation of another hammer, and the cluster hammer can operate smoothly. The present invention has the significant effect of smoothly operating a cluster hammer, without a hammer that is mounted on the cluster hammer causing problems in the operation of another hammer even when the first hammer is in a flushing position.

Description

노즐이 설치된 조합해머의 에어공급방법Air supply method of combined hammer with nozzle
본발명은 두 개 이상의 해머를 조합하여, 작동(Drilling)하는 조합해머(Multi Hammer, Cluster Hammer)에서 고압의 압축공기를 각각의 해머로 균일하게 공급할 수 있는 노즐이 설치된 조합해머의 에어공급방법에 관한 것이다.The present invention relates to an air supply method of a combination hammer provided with a nozzle that can uniformly supply high pressure compressed air to each hammer from a combination hammer (Multi Hammer, Cluster Hammer) which combines two or more hammers. It is about.
일반적으로 지면을 굴착하는 해머는 공기 또는 워터와 같은 유체를 사용하여 굴착하는 힘을 얻게 되며, 또한 해머의 동작을 제어한다. In general, the hammer that excavates the ground gains the excavation force by using a fluid such as air or water, and also controls the operation of the hammer.
통상적인 해머구조에 대해 등록실용신안공보 등록번호 20-0429346호는, 공기압축기에서 지원받은 압축공기가 로타리해드와 연장파이프 를 통하여 상기의 에어 해머에 압축공기가 도달하면 에어 해머 내부의 피스톤이 상하 반복작용을 하면서 비트를 타격하고, 이 비트가 다양한 지반을 부숴 굴착이 이루어진다.     For the conventional hammer structure, the Utility Model Registration No. 20-0429346 discloses that when the compressed air supported by the air compressor reaches the air hammer through the rotary head and the extension pipe, the piston inside the air hammer is moved up and down. Repeatedly hitting the beat, and the beat breaks through various grounds.
여기에 사용하는 에어 해머의 구성품을 대별하면, 척, 외피, 피스톤, 압축공기 분배기, 톱서브로 나눌 수 있으며, 각 부품의 역할로는 척은 외피의 아래쪽에 결합 되며 에어 해머와 비트를 결합시켜 주기 위한 것이고, 외피는 피스톤의 외주면을 감싸고 피스톤의 왕복운동을 자연스럽게 하며, 압축공기 분배기는 피스톤이 왕복운동을 할 수 있게 공기를 분배하고, 톱서브는 외피의 위쪽에 결합 되며 에어해머에 압축공기를 공급하기 위한 연장파이프에도 연결하는 역할을 하는 기술이 공개되어 있다.The components of the air hammer used here can be divided into chucks, shells, pistons, compressed air distributors, and top subs.In the role of each part, the chucks are coupled to the underside of the shell and the air hammers and bits The outer shell surrounds the outer circumferential surface of the piston and facilitates the reciprocating motion of the piston. The compressed air distributor distributes the air for the piston to reciprocate. The technology that connects the extension pipe for supplying is disclosed.
또한, 등록실용신안공보 등록번호 20-0273989호에는 에어해머는 그 몸체부를 구성하는 원통상으로 된 하우징의 중공부에 굴착용 비트가 설치되고, 상기 비트의 하단부에는 초경소재로 된 다수의 볼이 박힌 고정이빨과 외향으로 확대되도록 조립된 확경이빨이 구비되고, 그러므로 굴착하기 위한 장소에 에어해머의 하우징을 수직으로 거치시킨 상태에서 그 중공부에 설치된 비트를 구동시킴에 따라, 준비상태로부터 비트의 헤드부 하단에 구비된 고정이빨과 확경이빨이 일체로 하우징)의 하단으로 돌출됨과 아울러 상기 확경이빨이 그 자중에 의해 외향으로 확대된 상태에서 비트가 회전과 동시에 고압의 공기압을 분사시키게 됨으로써 토사 또는 암반층을 굴착하게 되는 것이 공개되어 있다.     In addition, the Utility Model Registration No. 20-0273989, the air hammer is provided with an excavation bit is installed in the hollow portion of the cylindrical housing constituting the body portion, the lower end of the bit is a number of balls made of cemented carbide material The fixed tooth and the enlarged tooth assembled to extend outward are provided, and thus the bit installed in the hollow part is driven by vertically mounting the housing of the airhammer at the place for excavation. The fixed tooth and the enlarged tooth provided at the lower end of the head unit protrude toward the lower end of the housing), and while the enlarged tooth is extended outward by its own weight, the bit is rotated and sprays high pressure air pressure at the same time, so that Excavation of rock layers has been disclosed.
한편, 2개 이상의 해머가 조합된 조합 해머에서는 상기 에어 또는 워터 유체는 유입통로로 유입되어 저장용기 및 내부구조를 통하여 각각의 해머로 임의적으로 공급된다.      On the other hand, in a combination hammer in which two or more hammers are combined, the air or water fluid flows into the inflow passage and is arbitrarily supplied to each hammer through the storage vessel and the internal structure.
특히, 2개 이상의 해머가 조합된 조합해머를 구성할 시, 여러 개 해머 중 일부 해머의 하부 지반이 무너지거나 하여 해머의 하부단부가 굴착대상물인 암석이나 지반에 닿지 않게 되고(Flushing, 플러싱) 그 사이에 빈공간이 형성될 경우에는, 상기 해머에 공급되는 압축공기가 그대로 하부로 빠져나가게 되고, 이는 나머지 해머들로의 압축공기 공급량을 부족하게 하여, 나머지 해머들의 Power에 나쁜 영향을 미치게 되는 단점이 있었다.     In particular, when constructing a combination hammer in which two or more hammers are combined, the lower ground of some of the hammers collapses or the lower end of the hammer does not touch the rock or ground to be excavated (Flushing, Flushing). When the empty space is formed in between, the compressed air supplied to the hammer exits as it is, which shortens the compressed air supply amount to the remaining hammer, adversely affects the power of the remaining hammers There was this.
따라서 본 발명은 상기와 같은 문제점을 해결하고자 안출된 것으로서, 본 발명은 조합해머(Cluster Hammer)에 장착된 해머가 플러싱 포지션(flushing position)이 되는 경우에도 다른 해머의 작동에 문제를 발생시키지 않고 조합해머를 원활하게 작동시키는 노즐이 설치된 조합해머(Cluster Hammer)의 에어공급방법을 제공하고자 하는 것이다.Therefore, the present invention has been made to solve the above problems, the present invention can be combined without causing problems in the operation of other hammer even if the hammer mounted on the cluster hammer (flushing position) in the flushing position (flushing position) An object of the present invention is to provide an air supply method of a cluster hammer equipped with a nozzle for smoothly operating the hammer.
본 발명은 노즐이 설치된 조합해머(Cluster Hammer)의 에어공급방법에 있어서, 상기 조합해머의 에어가 인입되는 에어입구커버(4)의 하부에 에어분배노즐(3)들이 형성된 에어분배블록(1)이 설치되고, 상기 에어분배블록(1) 하부에는 해머(10)들이 각각 설치되어, 상기 에어분배노즐(3)을 통과한 압축공기는 각각의 해머(10)로 공급된 후, 해머(10)를 작동시키는 것으로, 상기 조합해머에 장착된 해머(10)가 플러싱 포지션 (flushing position)이 되는 경우에도 다른 해머의 작동에 문제를 발생시키지 않고 조합해머가 원활하게 작동되는 것을 특징으로 한다.In the air supply method of the cluster hammer (Cluster Hammer) equipped with a nozzle, the air distribution block (1) having air distribution nozzles (3) formed in the lower portion of the air inlet cover (4) into which the air of the combination hammer is introduced Is installed, the hammer 10 is provided in the lower portion of the air distribution block 1, the compressed air passing through the air distribution nozzle 3 is supplied to each hammer 10, the hammer 10 By operating the, even when the hammer 10 mounted on the combination hammer is in the flushing position (flushing position) is characterized in that the combination hammer operates smoothly without causing problems in the operation of other hammers.
따라서 본발명은 조합해머(Cluster Hammer)에 장착된 해머가 플러싱 포지션(flushing position)이 되는 경우에도 다른 해머의 작동에 문제를 발생시키지 않고 조합해머를 원활하게 작동시키는 현저한 효과가 있다.Therefore, the present invention has a remarkable effect of smoothly operating the combination hammer without causing a problem in the operation of the other hammer even when the hammer mounted on the cluster hammer is in the flushing position.
도 1은 본발명 조합해머 에어공급장치 사시도1 is a perspective view of the combination hammer air supply device of the present invention
도 2는 본발명 조합해머 에어공급장치 조립도Figure 2 is a combination hammer air supply device assembly of the present invention
도 3은 본발명 조합해머 에어공급장치 단면도3 is a cross-sectional view of the present invention combination hammer air supply device
도 4는 본발명 조합해머 에어공급장치 에어분배노즐 단면도4 is a cross-sectional view of the present invention combination hammer air supply device air distribution nozzle
도 5는 본발명 조합해머 에어공급장치 에어작동 실험 사진Figure 5 is a combination hammer air supply device air operation experimental photograph of the present invention
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1 : 에어분배블록 2 : 에어 출구1: Air distribution block 2: Air outlet
3 : 에어분배노즐 4 : 에어 입구 커버 3: air distribution nozzle 4: air inlet cover
5 . 6 : 볼트 10 : 해머5. 6: bolt 10: hammer
본 발명은 노즐이 설치된 조합해머(Cluster Hammer)의 에어공급방법에 있어서, 상기 조합해머의 에어가 인입되는 에어입구커버(4)의 하부에 에어분배노즐(3)들이 형성된 에어분배블록(1)이 설치되고, 상기 에어분배블록(1) 하부에는 해머(10)들이 각각 설치되어, 상기 에어분배노즐(3)을 통과한 압축공기는 각각의 해머(10)로 공급된 후, 해머(10)를 작동시키는 것으로, 상기 조합해머에 장착된 해머(10)가 플러싱 포지션 (flushing position)이 되는 경우에도 다른 해머의 작동에 문제를 발생시키지 않고 조합해머가 원활하게 작동되는 것을 특징으로 한다.In the air supply method of the cluster hammer (Cluster Hammer) equipped with a nozzle, the air distribution block (1) having air distribution nozzles (3) formed in the lower portion of the air inlet cover (4) into which the air of the combination hammer is introduced Is installed, the hammer 10 is provided in the lower portion of the air distribution block 1, the compressed air passing through the air distribution nozzle 3 is supplied to each hammer 10, the hammer 10 By operating the, even when the hammer 10 mounted on the combination hammer is in the flushing position (flushing position) is characterized in that the combination hammer operates smoothly without causing problems in the operation of other hammers.
또한, 상기 압축공기 대신 물을 작동유체로 사용하는 것을 특징으로 한다.     In addition, it is characterized in that instead of the compressed air using water as the working fluid.
본발명을 첨부도면에 의해 상세히 설명하면 다음과 같다. 도 1은 본발명 조합해머 에어공급장치 사시도, 도 2는 본발명 조합해머 에어공급장치 조립도, 도 3은 본발명 조합해머 에어공급장치 단면도, 도 4는 본발명 조합해머 에어공급장치 에어분배노즐 단면도, 도 5는 본발명 조합해머 에어공급장치 에어작동 실험 사진이다.The present invention is described in detail by the accompanying drawings as follows. 1 is a perspective view of the combination hammer air supply device of the present invention, Figure 2 is an assembly view of the combination hammer air supply device of the present invention, Figure 3 is a cross-sectional view of the combination hammer air supply device of the present invention, Figure 4 is a combination hammer air supply device of the present invention air distribution nozzle Sectional drawing, Figure 5 is a photograph of the experimental operation of the air hammer combination air supply device of the present invention.
본발명의 조합해머 에어공급장치는 에어가 인입되는 에어입구커버의 하부에 다수 개의 에어분배노즐(오리피스)들이 형성된 에어분배블록이 설치된다. 그리고 상기 에어분배블록 하부에는 다수 해머가 각각 설치되며, 에어분배노즐을 통과한 압축공기는 각각의 해머로 공급되고, 해머를 작동시키게 된다.     The combination hammer air supply device of the present invention is provided with an air distribution block formed with a plurality of air distribution nozzles (orifices) in the lower portion of the air inlet cover through which air is introduced. In addition, a plurality of hammers are installed in the lower portion of the air distribution block, and the compressed air passing through the air distribution nozzles is supplied to the respective hammers to operate the hammers.
본발명을 구체적으로 기재하면, 본발명은 No. 1 ~ No.2 , 3 , 4 ...의 각각의 해머는 특정 작동압력 (Operating pressure)에서의 공기소모량(Air Consumption)이 설계단계에서부터 미리 결정된다.     When the present invention is described in detail, the present invention is no. For each hammer 1 to 2, 3, 4 ... air consumption at a specific operating pressure is predetermined from the design stage.
이는 Hammer의 고유 특성이며, 예로써 4인치 Hammer는 해머의 작동압력이 200psi에서는 약 210CFM의 압축공기를 소모(필요로)하게된다. (CFM은 CUBIC FEET PER MINUTE의 약어이다)     This is a unique characteristic of the hammer, for example a 4 inch hammer consumes (needs) about 210 CFM of compressed air at 200 psi operating pressure. (CFM stands for CUBIC FEET PER MINUTE)
그리고 본발명에서 해머비트(Hammer Bit)의 위치(Position)에 대해 정의하면 다음과 같다.      In the present invention, the position of the hammer bit is defined as follows.
해머링 포지션(Hammering Position)은 비트의 밑면이 암석(지반)과 맞닫아 해머가 정상으로 작동하는 상태를 의미한다.     The hammering position means that the bottom of the bit hits the rock (ground) so that the hammer operates normally.
그리고 플러싱 포지션(Flushing Position)은 비트의 밑면이 암석과 닫지 않아 해머로 부터 비트가 아래로 쳐져 있는 상태로, 이때는 해머로 공급된 압축공기는 해머를 작동시키지 않고 해머 외부로 방류되어 버리는 상태를 의미한다.     And the flushing position means that the bottom of the bit is not closed with the rock and the bit is pushed down from the hammer. In this case, the compressed air supplied to the hammer is discharged to the outside of the hammer without operating the hammer. do.
그리고 본발명의 실시례를 기재하면 다음과 같다. 본발명의 공기압 발생장치는 900CFM/350psi 용량의 콤프레서 1대를 작동한다.     And describes an embodiment of the present invention as follows. The pneumatic generator of the present invention operates one compressor of 900 CFM / 350 psi capacity.
그리고 본발명의 작동방법은 각각의 해머에 노즐이 설치되어 있는 경우로, 종래기술인 노즐이 없이 작동하는 경우와 대비할 수 있다.     In addition, the operation method of the present invention is a case where the nozzle is provided in each hammer, it can be prepared in the case of operating without the nozzle of the prior art.
먼저 종래 방법인 노즐이 없이 작동할 경우를 설명하면, 예를 들어 4개 해머를 작동하는 경우에는 900CFM/350psi 용량의 콤프레서 1대에서 분기되어 각각의 해머에 공급될 때 해머의 작동압력은 200psi가 된다.      First, the conventional method of operating without a nozzle will be described. For example, when four hammers are operated, the operating pressure of the hammer is 200 psi when branched from one compressor having a capacity of 900 CFM / 350 psi and supplied to each hammer. do.
그런데 3개 해머는 정상작동되는 반면에 1개 해머가 플러싱(Flushing)이 발생되는 경우에는 상기 정상작동되던 3개 해머마저도 그 작동압력이 120psi로 떨어지므로 굴착효율이 현저하게 떨어진다.     However, when three hammers operate normally while one hammer is flushed, even the three hammers that operate normally drop the operating pressure to 120 psi.
한편, 종래와 달리 본발명에서 각각의 해머에 오리피스 형태의 에어공급 노즐이 설치되어 있는 경우에는, 900CFM/350psi 용량의 콤프레서 1대에서 분기되어 노즐을 통하여 각각의 해머에 공급되는 작동압력은 200psi가 되며, 3개 해머는 정상작동되는 반면에 1개 해머가 플러싱(Flushing)이 발생됨에도 3개의 해머의 작동압력은 200psi로 유지되었다.     On the other hand, unlike the prior art, in the present invention, when the orifice-type air supply nozzle is installed on each hammer, the operating pressure supplied to each hammer through the nozzle branched from one compressor having a capacity of 900 CFM / 350 psi is 200 psi. The three hammers operated normally, while the operating pressure of the three hammers was maintained at 200 psi even though one hammer was flushed.
그리고 본발명에서 노즐의 직경(Dn)은 해머의 목표 작동압력에서의 공기소모량을 기준하여 노즐을 통과하는 최대 공기량을 정하고, 상기 정해진 최대 공기량을 기준하여 노즐의 직경(Dn)이 결정된다. 상기와 같이 목표 작동압력에서의 공기소모량을 기준하여 노즐을 통과하는 최대 공기량을 정하고, 상기 정해진 최대 공기량을 기준하여 노즐의 직경(Dn)을 결정하는 방법은 일반적인 유체역학 수식을 사용하여 용이하게 결정되는 부분이므로 계산방법에 대한 자세한 기재는 생략한다.      In the present invention, the diameter Dn of the nozzle determines the maximum amount of air passing through the nozzle based on the amount of air consumption at the target operating pressure of the hammer, and the diameter Dn of the nozzle is determined based on the determined maximum amount of air. As described above, the method of determining the maximum amount of air passing through the nozzle based on the amount of air consumption at the target operating pressure, and the method of determining the diameter Dn of the nozzle based on the determined maximum amount of air, is easily determined using a general hydrodynamic formula. Since it is a part, detailed description of the calculation method is omitted.
그리고 본발명에서 상기와 같이 노즐을 설치할 경우 노즐 자체의 압력손실은 무시할 수 있을 정도로 미미하다       In the present invention, when the nozzle is installed as described above, the pressure loss of the nozzle itself is negligible.
따라서 본발명은 조합해머(Cluster Hammer)에 장착된 해머가 플러싱 포지션(flushing position)이 되는 경우에도 다른 해머의 작동에 문제를 발생시키지 않고 조합해머를 원활하게 작동시키는 현저한 효과가 있다.     Therefore, the present invention has a remarkable effect of smoothly operating the combination hammer without causing a problem in the operation of the other hammer even when the hammer mounted on the cluster hammer is in the flushing position.

Claims (2)

  1. 2개 이상의 해머(10)를 조합한 조합해머(Cluster Hammer) 에어공급방법에 있어서, 상기 조합해머의 에어가 인입되는 에어입구커버(4)의 하부에 에어분배노즐(3)들이 형성된 에어분배블록(1)이 설치되고, 상기 에어분배블록(1) 하부에는 해머(10)들이 각각 설치되어, 상기 에어분배노즐(3)을 통과한 압축공기는 각각의 해머(10)로 공급된 후, 해머(10)를 작동시키는 것으로, 상기 조합해머에 장착된 해머(10)가 플러싱 포지션 (flushing position)이 되는 경우에도 다른 해머의 작동에 문제를 발생시키지 않고 조합해머가 원활하게 작동되는 것을 특징으로 하는 노즐이 설치된 조합해머의 에어공급방법In the cluster hammer air supply method combining two or more hammers (10), an air distribution block (3) having air distribution nozzles (3) formed at a lower portion of the air inlet cover (4) into which the air of the combination hammer is introduced (1) is installed, and the hammer 10 is installed in the lower portion of the air distribution block (1), the compressed air passing through the air distribution nozzle (3) is supplied to each hammer 10, and then hammer By operating (10), even when the hammer 10 mounted on the combination hammer is in the flushing position (flushing position), the combination hammer is operated smoothly without causing problems in the operation of other hammers. Air supply method of combined hammer with nozzle
  2. 제1항에 있어서, 상기 압축공기 대신 물을 작동유체로 사용하는 것을 특징으로 하는 노즐이 설치된 조합해머의 에어공급방법The method of supplying air to a combination hammer provided with a nozzle according to claim 1, wherein water is used as a working fluid instead of the compressed air.
PCT/KR2012/009297 2011-12-02 2012-11-07 Air supplying method for cluster hammer having nozzles installed WO2013081311A1 (en)

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