KR20120032168A - Reamer for horizonal directional drilling - Google Patents

Reamer for horizonal directional drilling Download PDF

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KR20120032168A
KR20120032168A KR1020100093656A KR20100093656A KR20120032168A KR 20120032168 A KR20120032168 A KR 20120032168A KR 1020100093656 A KR1020100093656 A KR 1020100093656A KR 20100093656 A KR20100093656 A KR 20100093656A KR 20120032168 A KR20120032168 A KR 20120032168A
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South Korea
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air
expander
head
hammer
straight body
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KR1020100093656A
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Korean (ko)
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KR101249257B1 (en
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김용호
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김용호
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/18Drilling by liquid or gas jets, with or without entrained pellets
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B6/00Drives for drilling with combined rotary and percussive action
    • E21B6/02Drives for drilling with combined rotary and percussive action the rotation being continuous
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/24Drilling using vibrating or oscillating means, e.g. out-of-balance masses

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)

Abstract

PURPOSE: A horizontal directional drilling reamer is provided to improve the working efficiency, to quickly and accurately perform drilling, and to form a solid excavation hole because track changing of a reamer is prevented. CONSTITUTION: A horizontal directional drilling reamer comprises a driving rod(4), a conic head portion(2), a cylindrical straight body(6), a plurality of hammers(7), an inclined hammering unit(17), a plurality of discharge holes(18), and an air supply pipe(13). The driving rod supplies the torque by being connected to a digging equipment, water, and bentonite mixture at the same time. The driving rod is connected to a front-end part of the conic head portion. The conic head portion comprises a plurality of injection nozzles and tips. The cylindrical straight body is formed in the rear-end part of the conic head portion to be integrated and an air tank(11) is installed inside of the cylindrical straight body. The plurality of hammers is exposed through holes punched in all directions of the conic head portion. A hammer body is fixed and installed inside of the cylindrical straight body, thereby moving forward and backward by the pneumatic pressure supplied from the air tank. The inclined hammering unit is formed in the hammer head. The plurality of discharge holes is formed in the hammer head so that the bentonite mixture is sprayed. The air supply pipe is connected to the rear-end part of the cylindrical straight body and supplies the pneumatic pressure from outside to the hammers.

Description

지향식 수평굴착공사용 확공기{REAMER FOR HORIZONAL DIRECTIONAL DRILLING}ORIENTAL HORIZONTAL DRILLING MACHINE {REAMER FOR HORIZONAL DIRECTIONAL DRILLING}

본 발명은 수도관, 가스관, 송유관, 통신선, 전기선 등을 지하에 매설할 때 사용하는 지향식 수평굴착공사용 확공기에 관한 것으로, 더욱 자세하게는 지향식 수평굴착공법에서 단점으로 알려진 암반층,전석층,호박돌층에 대한 작업의 불(不)용이성을 극복할 수 있도록 확공기의 구성과 기능을 향상시킨 것에 관한 것이다.
The present invention relates to a directional horizontal excavation expander used for laying water pipes, gas pipes, oil pipelines, communication lines, electric lines, etc., more specifically rock bed, stone layer, amber stone known as a disadvantage in the directional horizontal excavation method It is about improving the construction and function of the air blower to overcome the inability to work on the floor.

일반적으로 수도관, 가스관 등과 같은 각종 관로를 설치할 때는 먼저 땅을 파서 지하 선로를 형성하고 상기 매설물(관)을 지하선로 속으로 인입 하여 매설하는 비개착 지향식 수평굴착공법을 사용하고 있다.
In general, when installing various pipelines such as water pipes, gas pipes, and the like, a non-adhesive oriented horizontal excavation method of digging the ground to form an underground track, and then inserting the buried material into the underground track is embedded.

알려진 지향식 수평굴착공법은 소구경 드릴헤더를 전방을 향하여 회전 추진시켜 관로를 천공하되, 드릴헤더에 형성된 노즐을 통해서 물과 벤토나이트(BENTONITE) 혼합물을 진행방향으로 고압 분사하여 토질을 공략 함으로써 소구경 굴착공이 굴착된다.
Known directional horizontal excavation is a small diameter drill header rotates forward to drill the pipeline, but by spraying water and bentonite mixture in a high pressure direction through the nozzle formed in the drill header to attack the soil diameter The excavation hole is excavated.

상기 지향성 굴착공법에 사용되는 장비는 자체엔진과 굴진트랙, 로드(ROD)의 장착 및 탈착장치로 구성되며, 상기 메인장비에는 로드가 필요한 길이로 연결되고, 로드의 외단에는 드릴헤더(굴착시)나 확공기(확공시)가 선택적으로 연결되며, 메인장비로부터 회전력과 추진력이 제공된다.
The equipment used in the directional excavation method consists of a self-engine, excavation track, rod (ROD) mounting and desorption device, the main equipment is connected to the length required for the rod, the outer end of the rod drill header (drilling) B. Air expanders (when expanding) are selectively connected and torque and propulsion are provided from the main equipment.

드릴헤더는 회전하는 구동로드 선단에 연결되는 굴착공구로서, 전면에 다수의 팁을 가진 비트가 설치되고, 회전하면서 굴진하여 소구경 관로공을 굴착하며, 고압의 물과 벤토나이트 혼합물이 동시 분사되어 굴착력을 돕는다.
The drill header is an excavation tool connected to the tip of the rotating drive rod, and a bit with a plurality of tips is installed on the front, and the drill head is excavated while rotating to excavate a small diameter pipe hole, and the high pressure water and bentonite mixture are simultaneously sprayed and excavated. To help.

확공기는 역시 구동로드의 선단에 연결되어 관로공을 역주행하면서 넓혀주는 공구로서, 전단이 뾰족한 원추형 몸체를 가지며, 전면에 다수의 팁이 장착되어 있는 회전형 추진체이다.
The expansion machine is also a tool that is connected to the tip of the driving rod to reversely widen the duct hole and has a conical body with a sharp shear, and is equipped with a plurality of tips on the front.

상기 소구경 드릴헤더에 의해서 소구경 관로공이 굴착 완료되면 반대쪽으로 인출된 구동로드의 단부에서 드릴헤더를 분리하고, 그 대신에 확공기를 구동로드에 연결하여 끌어당긴다. 따라서 회전력을 가진 확공기는 소구경 관로공을 확장시키면서 역추진되며, 확공기에는 관체를 매달아 함께 인입되게 하거나 또는 확장 후 별도로 관체를 삽입하여 매설한다.
When the small diameter conduit is excavated by the small diameter drill header, the drill header is separated from the end of the driving rod drawn out to the opposite side, and instead, the expansion header is connected to the driving rod and drawn. Therefore, the expansion machine with the rotational force is reversely propagated by expanding the small-diameter conduit, and the expansion machine is embedded by hanging the tube to be introduced together or by inserting the tube separately after expansion.

알려진 종래의 확공기(1)는 도 1과 같이 통상의 팽이처럼 원추형 머리부(2)로 형성되고 전면에는 다수의 팁(3)이 장착된 구조로서, 구동로드(4)에 의해서 확공기(1)가 회전하면서 소구경 굴착공(A) 속을 파고들어 굴진함에 의해서 대구경 확장공(B)으로 확공되는 구조로 되어 있다.
Known conventional air expander (1) is formed of a conical head (2) as shown in the top, as shown in Figure 1, a plurality of tips (3) is mounted on the front, by the driving rod (4) As 1) rotates, the hole is expanded into a large diameter expansion hole (B) by digging into and digging into the small diameter drilling hole (A).

그러나 상기 종래의 확공기(1)는 단순히 머리부에 복수의 팁이 구비된 것이므로 일반 토사층 굴착공에 대한 확장은 용이하지만, 진행 과정에서 암반층이나 전석층 또는 호박돌층이 섞인 부분에서는 머리부의 팁만으로는 이들 암석층을 타개하여 추진할 수 있는 능력이 없기 때문에 작업이 용이치 못하고 대책 마련으로 인하여 공사기간이 지연되는 단점이 있었다.
However, the conventional air expander (1) is simply provided with a plurality of tips in the head, so that it is easy to expand the general soil excavation hole, but in the process of mixing the rock layer, the stone layer or the amber stone layer with only the tip of the head Since there is no ability to propel these rock layers, work is not easy and the construction period is delayed due to the provision of countermeasures.

다른 문제점은 확공기(1)가 팽이처럼 앞쪽의 경사형 머리부는 길고 뒷쪽몸체는 짧기 때문에 굴착공 내에서 유동되는 문제점이 있다. 다시 말해서, 굴착공을 따라서 확공기가 회전 이동할 때 도 2, 도 3의 화살표시처럼 선단이 들리거나 기울어지는 등 유동되는 단점이 있으며, 곡선형 굴착공 속에서 로드가 끌어당기는 쪽으로 쉽게 머리를 틀어서 괘도를 이탈하게 되므로 굴착공의 진로가 변경되고 작업이 지연되는 등의 문제점이 있었다.
Another problem is that the air inflator 1 has a problem in that the front inclined head portion is long and the rear body is short, so that the fluid flows in the excavation hole. In other words, when the expander rotates along the excavation hole, the tip may be lifted or inclined as shown in the arrows of FIGS. 2 and 3, and the head may be easily turned to draw the rod in the curved excavation hole. Since the trajectory is off, there were problems such as changing the course of the excavation hole and delaying work.

또 다른 문제점은 확공기의 뒷몸체가 짧기 때문에 소구경을 넓게 확장하는 작용은 용이하지만, 넓혀진 굴착공의 다짐력이 약하며, 확공기가 통과된 뒷쪽의 확장공이 견고하게 다져지지 않아서 붕괴의 우려가 많다는 점이다.
Another problem is that the rear body of the expansion machine is short, so it is easy to widen the small diameter, but the compaction force of the widened excavation hole is weak, and the expansion hole at the back through which the expansion hole is passed is not firmly compacted, causing the possibility of collapse. There are many.

본 발명의 목적은 토사층은 물론 암반층이나 전석층 및 호박돌을 만났을 때 이들을 타개하면서 추진할 수 있는 기능을 가진 새로운 구조의 확공기를 제공하는 것이다.
It is an object of the present invention to provide a new structured air expander having a function of pushing the soil layer as well as rock layers, stone layers and amber stones when they meet them.

다른 목적은 공사장비의 개선으로 확공기의 괘도가 변경되는 단점을 해소하여 신속 정확한 작업을 수행하여 작업능률을 향상시키고, 확공기가 통과된 확장공의 붕괴 우려를 줄이고 견고한 굴착공을 형성할 수 있게 하는 것이다.
Another object is to improve construction efficiency by eliminating the disadvantage that the trajectory of the expansion machine changes due to the improvement of construction equipment, improve the work efficiency, reduce the fear of collapse of the expansion hole passed through the expansion machine, and form a strong excavation hole. It is to be.

상기한 목적을 달성하기 위해서 본 발명은 관로공사에 사용하는 지향식 수평굴착용 확공기를 형성함에 있어서, 굴진장비와 연결되어 회전력을 제공하고 물과 벤토나이트 혼합물을 동시에 공급하는 구동로드와;In order to achieve the above object, the present invention is a drive rod for providing a rotational force and supplying a mixture of water and bentonite at the same time in connection with the drilling equipment in forming a directional horizontal excavation expander for use in pipeline construction;

상기 구동로드가 선단에 연결되고 다수의 분사노즐과 팁을 가진 원추형 헤드와; 상기 원추형 헤드의 후단에 일체로 형성되며 내부에 공기탱크가 설치되고 직선형의 긴 몸체를 가진 원통체와; 원추형헤드의 사방에 뚫린 구멍을 통해서 전단헤드가 노출되게 설치되고 후단 몸체는 원통체 내부에 고정 설치되어 에어탱크로 부터 공기압을 공급받아 진퇴 작동되는 복수의 공압해머와; 물과 벤토나이트 혼합물이 분사되도록 복수의 노즐공이 형성된 공압해머 헤드와; 원통체의 후단에 연결되며 외부로부터 공기압을 해머에 제공하는 공기공급관; 의 결합으로 이루어진 확공기를 특징으로 한 것이다.
A conical head connected to the tip of the drive rod and having a plurality of injection nozzles and tips; A cylindrical body formed integrally with the rear end of the conical head and having an air tank installed therein and having a straight long body; A plurality of pneumatic hammers which are installed so that the front head is exposed through holes drilled in all directions of the conical head and the rear end body is fixedly installed in the cylindrical body to receive air pressure from the air tank; A pneumatic hammer head in which a plurality of nozzle holes are formed to spray water and bentonite mixture; An air supply pipe connected to the rear end of the cylindrical body and providing air pressure to the hammer from the outside; It is characterized by the expansion of the combination made of.

본 발명은 확공기의 전면부에 설치한 공압해머의 강력한 진동충격과 타격작동이 지속적으로 이루어지고, 또한 해머 헤드의 노즐공에서는 물과 벤토나이트 분사력이 전방을 향하여 지속적으로 이루어짐에 의해서 일반 토사층 확장의 신속성은 물론, 암석층이나 호박돌과 접촉하여도 해머와 수압의 진동충격과 타격력에 의해서 부서지고 쪼개져 확공속도가 빠르게 진행되어 관로공사 작업이 신속히 이루어 질 수 있다.
The present invention is a strong vibration impact and hitting operation of the pneumatic hammer installed in the front of the air expansion continuously, and in the nozzle hole of the hammer head water and bentonite injection force is continuously made toward the front of the general soil layer expansion In addition to the rapidity, even in contact with the rock layer or amber stone can be broken quickly and broken by the vibration and impact force of the hammer and hydraulic pressure, so that the expansion speed is rapidly progressed, the pipeline work can be done quickly.

또한 본 발명의 확공기는 원통체의 기장이 길기 때문에 넓혀진 관로공이 붕괴되지 않도록 다져서 견고한 토관을 형성하며, 확공기의 유동을 억제하여 괘도 변경이나 이탈현상 없이 굴착공을 따라서 굴진 이동하여 설정된 작업을 신속정확하게 수행할 수 있다.
In addition, the expansion machine of the present invention is compacted so that the length of the cylindrical body is expanded so as not to collapse, forming a solid earth pipe, and by suppressing the flow of the expansion air is excavated to move along the excavation hole without changing the trajectory or deviating phenomenon set work Can be performed quickly and accurately.

도 1은 종래의 확공기 구성을 보인 사시도
도 2는 종래 확공기에 의한 굴진작업의 문제점을 보인 예시도
도 3은 종래 확공기의 유동성을 보인 예시도
도 4는 본 발명의 확공기 사시도
도 5는 본 발명의 확공기 구성을 보인 단면도
도 6은 본 발명 확공기의 정면도
도 7은 본 발명 확공기를 적용한 작업 설명도
1 is a perspective view showing a conventional air conditioner configuration
Figure 2 is an exemplary view showing a problem of the excavation work by the conventional air expander
3 is an exemplary view showing the fluidity of the conventional air expander
4 is a perspective view of the air expander of the present invention
Figure 5 is a cross-sectional view showing a configuration of the air expander of the present invention
6 is a front view of the present invention air expander
7 is an operation explanatory diagram applying the present invention air expander

본 발명에서 확공기의 원추형 머리부(2)에 복수의 팁(3)을 형성하고 외부의 장비와 연결된 구동로드(4)를 머리부(2)에 연결하여 소구경 굴착공(A) 속의 확공기(1)에 회전력과 견인력을 부여하는 구성은 공지한 바와 같다. In the present invention, a plurality of tips 3 are formed on the conical head 2 of the air expander, and the driving rod 4 connected to the external equipment is connected to the head 2 to expand in the small diameter drilling hole A. The configuration of imparting the rotational force and the traction force to the air 1 is as known.

본 발명의 확공기(1)는 도 4, 도 5에서와 같이 원추형 머리부(2)의 뒷쪽에 원통형상의 긴 직선몸체(6)가 일체로 형성되어 있다.In the air expander 1 of this invention, the cylindrical long straight body 6 is integrally formed in the back of the conical head part 2, as shown in FIG.

상기 직선몸체(6)의 설치목적은 머리부(2)가 확장시킨 확장공을 뒷쪽의 직선몸체(6)가 다져주면서 성형하여 붕괴되지 않게 하고, 몸체를 길게 구비함으로써 도 7과 같이 직선몸체(6)가 확장공 내벽면에 밀착되므로 머리부(2)는 물론 확공기 전체의 유동이 발생하지 않고 괘도변경의 우려도 없게 한 것이다.
The purpose of the installation of the linear body 6 is to prevent the collapse of the expansion hole extended by the head portion 2 while the linear body 6 on the back is compacted and formed, and the body is provided with a long body as shown in FIG. Since 6) is in close contact with the inner wall surface of the expansion hole, the flow of the entire expansion air as well as the head part 2 is not generated and there is no fear of changing the trajectory.

상기 확공기(1)의 직선몸체(6) 내부에는 공기압에 의해서 피스톤 로드와 해머헤드가 진퇴 작동하는 통상형의 공압식 해머(7)가 복수로 장착되어 있으며, 각 해머(7)의 실린더(10)는 직선몸체(6) 내부에 고정되어 있고 헤드(8)는 확공기 머리부(2)에 형성된 관공(9)을 통해서 전방을 향하여 진동하도록 설치되어 있다.In the linear body 6 of the air expander 1, a plurality of normal pneumatic hammers 7, in which the piston rod and the hammer head move forward and backward by air pressure, are mounted in plural, and the cylinders 10 of the hammers 7 ) Is fixed inside the straight body (6) and the head (8) is installed to vibrate forward through the tube (9) formed in the expansion head (2).

상기 각 해머(7)는 공기탱크(11)와 연결관(12)으로 연결되어 공기 압력을 제공받는다. 공기탱크(11)의 공기주입구는 확공기(1) 후단으로 설치하고, 외부의 콤프레셔와 연결된 공기공급관(13)을 공기주입구에 연결하여 공기를 공급받는다. 또한 공기공급관(13)의 연결부에는 회전이 용이한 커플링을 연결하여 확공기의 회전이 용이토록 한다.
Each hammer 7 is connected to the air tank 11 and the connection pipe 12 to receive the air pressure. The air inlet of the air tank 11 is installed at the rear end of the air expander 1, and the air supply pipe 13 connected to the external compressor is connected to the air inlet to receive air. In addition, the connection portion of the air supply pipe 13 is connected to the easy coupling to facilitate the rotation of the expansion air.

상기 확공기(1)를 회전 및 인양시킬 목적으로 연결된 구동로드(4)는 관체로 형성하며, 외부 장비로부터 물과 벤토나이트 혼합물이 공급되도록 급수공(14)이 형성되어 있다. 급수공(14)의 내단에는 집수통(15)이 연결 설치되어 있으며, 집수통 (15)으로부터 각 해머(7)의 실린더(10)로 분사액이 공급되는 관체(16)가 연결되어 있다.
The driving rod 4 connected for the purpose of rotating and lifting the air expander 1 is formed in a tubular body, and a water supply hole 14 is formed to supply a mixture of water and bentonite from external equipment. A water collecting tank 15 is connected to the inner end of the water supply hole 14, and a pipe 16 through which the injection liquid is supplied from the water collecting tank 15 to the cylinder 10 of each hammer 7 is connected.

상기 각 해머(7)의 헤드(8)는 원추형 머리부(2)와 동일한 경사면으로 된 경사타격부(17)를 형성하고, 상기 경사타격부(17)에는 실린더(10) 내부로 유입된 분사액이 전방으로 분사될 수 있도록 복수의 토출공(18)이 천공되어 있다. 분사액은 해머로드(19)의 급수통로(20)를 통해서 토출공(18)으로 분사된다. The head 8 of each hammer 7 forms an inclined hitting part 17 having the same inclined surface as the conical head part 2, and the inclined hitting part 17 is injected into the cylinder 10. A plurality of discharge holes 18 are drilled so that the liquid can be injected forward. The injection liquid is injected into the discharge hole 18 through the water supply passage 20 of the hammer rod 19.

특히 진퇴 작동하는 해머(7)의 선단을 경사타격부(17)로 형성하여 정도 이상 전방으로 돌출되지 않고 관공(9)에서 출몰되게 하여 확공기(1)가 회전하는데 지장을 주지 않고 짧은 거리 내에서 진동 타격작동이 발생토록 구성한 것이다.In particular, the tip of the hammer 7 which moves forward and backward is formed by the inclined strike 17 so that it does not protrude more than about forward and emerges from the hole 9 so that the expansion machine 1 does not interfere with rotation. It is configured to cause vibration hitting operation at.

상기 해머의 헤드(8)는 경사면에 한정하는 것이 아니며, 통상의 도끼날처럼 납작한 판체형이나 뾰족한 못 형상으로 형성하여도 작업이 용이한 것이다.
The head 8 of the hammer is not limited to the inclined surface, and it is easy to work even if it is formed in a flat plate shape or a pointed nail shape like a common ax blade.

상기 확공기에 설치되는 해머(7)는 규모와 용도에 따라서 2~3개 또는 그 이상으로 설치할 수 있으며, 유압식 해머를 사용할 수도 있다.The hammers 7 installed in the air expander may be installed in two or three or more according to size and use, and hydraulic hammers may be used.

또한 확공기의 구동수단과 해머의 구동수단은 외부의 콘트롤부에 의해서 조정하는 것이다.
In addition, the driving means of the air expander and the driving means of the hammer are adjusted by an external control unit.

본 발명의 확공기는 소구경 굴착공(A)을 확장시키는 작용은 회전하는 확공기 머리부(2)와, 머리부(2)에 형성된 팁(3)과, 해머(7)의 진동작동과, 해머(7)에서 분사되는 고압 분사액과 공기압에 의해서 이루어지므로, 일반 토사층에 대한 굴착작업과 확공작업은 어려움 없이 신속 정확하게 이루어지며, 확공기의 직선몸체가 확장공(B)을 다지면서 내벽면을 밀착시켜 붕괴 및 침하를 막고 견고한 토관을 형성한다.The expansion machine of the present invention expands the small-diameter excavation hole (A) is the rotating air head (2), the tip (3) formed on the head (2) and the vibration operation of the hammer (7) , Because it is made by the high-pressure jetting liquid and air pressure injected from the hammer (7), excavation work and expansion work for the general soil layer is made quickly and accurately without difficulty, while the straight body of the expansion machine chops the expansion hole (B) Adhering to the wall, it prevents collapse and settlement and forms a solid soil pipe.

또한 도 7과 같이 본 발명의 확공기는 직선몸체(6)가 확장공(B)에 위치된 상태에서는 외력이나 충격에도 방향을 틀거나 변경할 수 없기 때문에 전방의 소구경 굴착공(A)을 따라서 괘도변경 없이 굴진되는 것이다.
In addition, as shown in FIG. 7, the expanding air of the present invention cannot change or change its direction even under external force or impact in a state where the linear body 6 is located in the expansion hole B. It is excavated without changing the trajectory.

특히 본 발명은 암석층이나 호박돌층에서는 확공기 자체의 회전력과, 복수로 설치된 해머(7)의 진동 충격과 타격력에 의해서 암석이 파쇄되므로 확공작업 및 굴진 속도가 빠르고 순조롭게 이루어지는 것이다.
In particular, in the present invention, the rock layer or the amber stone layer is crushed by the rotational force of the expansion machine itself and the vibration impact and the impact force of the hammer 7 installed in a plurality, so that the expansion work and excavation speed is made quickly and smoothly.

1 ; 확공기 2 ; 원추형 머리부
3 ; 팁 4 ; 굴착로드
A ; 소구경 굴착공 6 ; 직선몸체
7 ; 해머 8 ; 헤드
9 ; 관공 10; 실린더
11; 공기탱크 12; 연결관
13; 공기공급관 14; 급수공
15; 집수통 16; 관체
17; 경사타격면 18; 토출공
19; 해머로드 20; 급수통로
One ; Expansion machine 2; Conical head
3; Tip 4; Excavation rod
A; Small diameter rig 6; Straight body
7; Hammer 8; head
9; Official 10; cylinder
11; Air tank 12; Connector
13; Air supply line 14; Waterman
15; Sump 16; Tube
17; Inclined strike plane 18; Discharge hole
19; Hammer rod 20; Water supply

Claims (2)

굴진장비와 연결되어 회전력을 제공하도록 구동로드(4)에 연결되고 다수의 분사노즐과 팁(3)을 가진 지향식 수평굴착용 확공기에 있어서,
원추형 머리부(2)의 뒤쪽에 원통형의 긴 직선몸체(6)를 일체로 형성한 회전형 확공기(1)와;
상기 확공기(1)의 직선몸체(6) 내부에 복수로 장착되며 헤드(8)는 확공기 머리부(2)에 형성된 관공(9)을 통해서 전방을 향하도록 설치한 공압식 해머(7)와;
상기 각 해머(7)에 공기압을 제공하도록 연결되며 확공기(1)의 내측 후단에 설치된 공기탱크(11)와;
상기 확공기(1)의 후단의 공기탱크(11)에 연결 접속되며 외부의 장비로부터 공기를 공급하는 공기공급관(13)과;
선단에 경사타격부(17)을 가지며 구동로드(4)로 공급되는 물과 벤토나이트 혼합물을 전방으로 분사하도록 복수의 토출공(18)을 가진 해머 헤드(8); 의 결합으로 이루어진 것을 특징으로 하는 지향식 수평굴착공사용 확공기.
In a directed horizontal drilling dilator having a plurality of injection nozzles and a tip (3) connected to a driving rod (4) to provide rotational force in connection with the excavating equipment,
A rotary expander (1) integrally formed with a cylindrical long straight body (6) behind the conical head (2);
A plurality of heads 8 are mounted in the linear body 6 of the air expander 1 and the head 8 is provided with a pneumatic hammer 7 installed to face forward through the pipe 9 formed in the air expander head 2. ;
An air tank 11 connected to each of the hammers 7 to provide air pressure and installed at an inner rear end of the air expander 1;
An air supply pipe 13 connected to an air tank 11 at the rear end of the air expander 1 and supplying air from external equipment;
A hammer head 8 having an inclined strike part 17 at its tip and having a plurality of discharge holes 18 for injecting a mixture of water and bentonite supplied to the driving rod 4 forward; Expander for direct-oriented horizontal excavation, characterized in that consisting of a combination.
제 1항에 있어서, 상기 해머 헤드(8)에 형성한 경사타격부(17)는 원추형 머리부(2)와 동일한 경사면으로 형성한 것을 특징으로 하는 지향식 수평굴착용 확공기. The directional horizontal digging machine according to claim 1, wherein the inclined strike part (17) formed in the hammer head (8) is formed in the same inclined plane as the conical head part (2).
KR1020100093656A 2010-09-28 2010-09-28 Reamer for horizonal directional drilling KR101249257B1 (en)

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