KR20040002060A - Tunneling machines having a apparatus for releasing super-heat - Google Patents

Abstract

PURPOSE: A tunnel excavator provided with a movable intense heat emitter is provided to minimize the abrasion of a cutter head, to cut down the time and cost required for excavation work, and to secure the working environment safely. CONSTITUTION: The tunnel excavator provided with a movable intense heat emitter comprises: a guide rail(410) installed longitudinally in a hollow shaft(110) of a front body(100); a manipulator(420) installed to move along the guide rail(410); a primary hydraulic cylinder(430) installed on the backside of the manipulator(420) to move the manipulator(420) longitudinally; an arm(440) rotated at a right angle to the hollow shaft(110) and coupled to the front of the manipulator(420); a camera(450) installed on an end of the arm(440) to observe a face through an opening(320) of a cutter head(300); and an intense heat emitter(460) installed on an end of the arm(440) to emit intense heat forward through the opening(320) of the cutter head(300).

Description

TUNNELING MACHINES HAVING A APPARATUS FOR RELEASING SUPER-HEAT}

The present invention relates to a tunnel excavator having a mobile high heat emitter, and more particularly, to protect a tunnel excavator by breaking down and cutting obstacles quickly and completely with high heat emitted from the high heat emitter, and the time required for excavation and It relates to a tunnel excavator with a mobile high heat emitter that saves money and does not affect the membrane.

The drilling method of the tunnel excavation method is a soil excavation cutter mounted on the tip of the machine by inserting a steel cylindrical excavation machine called a micro tunneling machine or a semi-shield machine into a vertical work tool. Excavate the ground while rotating the cutter head and perform various auxiliary methods (water and chemical injection) on the membrane surface to prevent the collapse of the membrane surface while preventing the collapse of the membrane surface. It is to excavate the tunnel while repeating the work of pushing and pushing.

The tunnel excavator used in the propulsion method for excavating a tunnel will be described with reference to the accompanying drawings.

1 is a side cross-sectional view showing a conventional tunnel excavator, Figure 2 is a front view showing a conventional tunnel excavator. As shown, the tunnel excavator according to the prior art is composed of a front cylinder 10 and a tail body 20 of a steel cylinder.

The front cylinder 10 is a cylindrical hollow shaft 11 is fixedly installed in the center, the hollow shaft 11 is supported by a support bracket 12 extending from the inside of the front cylinder 10 and gears on the outer periphery The box 13 is bearing-coupled, and the first crusher 14 having a substantially trumpet shape extending from the outer periphery of the gearbox 13 while extending forward is screwed in the axial direction on the front of the gearbox 13. .

In addition, the hollow shaft 11 is provided with a second crusher 15 fixed in the axial direction at one end, the end of the second crusher 15 is inclined surface plate 14a of the first crusher 14 along the outer peripheral surface The inclined surface plate 15a having a shape opposite to that is formed to form a circular first crushing space 16 that gradually narrows toward the rear side between the inclined surface plates 14a and 15a, and the first crushing space 16 Inward, a circular passage 16a is formed, and a circular second crushing space 17 is formed behind the passage 16a.

On the other hand, the first crusher 14 is extended to a degree similar to the diameter of the front barrel 10 is coupled to the cutter head 30.

The cutter head 30 is formed or installed with a bit 31, an opening 32, and a water jet nozzle 33, and is rotatably installed in front of the front cylinder 10.

The waterjet nozzle 33 is installed in plural on the cutter head 30, each waterjet nozzle 33 is connected to the high pressure pipe (33a) installed in the front cylinder 10 and the rear cylinder 20, high pressure The pipe 33a is connected to a high pressure pump (not shown) installed on the ground. Therefore, the high pressure water generated by the high pressure pump is supplied to the waterjet nozzle 33 along the high pressure pipe 33a and sprayed on the membrane surface.

In addition, since the waterjet nozzle 33 rotates together with the cutter head 30, a swivel joint 33b is provided on the high pressure pipe 33a. Therefore, the connection portion of the high pressure pipe 33a can be freely rotated 360 degrees without leakage of high pressure water.

The rear cylinder 20 is coupled to the front cylinder 10 and a plurality of steering jacks (21), the hydraulic device (21a) and the direction modification jack for supplying the hydraulic pressure to the direction modification jack 21 on the inside A plurality of solenoid valves 21b for adjusting the stroke of the 21 are installed, and a plurality of cutter motors 22 and a reducer 23 for driving the cutter head 30 are installed. The reducer 23 is geared to the gearbox 13 of the front cylinder (10).

In addition, the rear cylinder 20 is provided with a fang pipe 24 and a manifold pipe 25 connected to the ground at the inner lower end, and a panel 26 provided with a target and a plurality of gauges engraved at one end thereof is provided. At the rear of the panel 26, a camera 27 for observing this is installed to operate the tunnel excavator for the series of excavation operations while observing it in the cockpit located on the ground.

This conventional tunnel excavator is a water jet nozzle provided for the efficiency of the drilling caused by the high-pressure water to disturb the ground by disturbing the ground is causing the collapse.

In addition, the actual strata where the excavation proceeds are different from those projected by geological survey through boring before operation, so if the excavation encounters an obstacle such as an unexpected rock or stone, it will not be broken. As a result, the equipment was damaged or the work had to be stopped in order to damage the equipment.

In particular, when obstacles are reinforced concrete piles, earth anchors or H beams, further digging is difficult with roller cutters, bits, or waterjet nozzles, and these obstacles shorten the life of the excavators and cause frequent downtimes and lifting of the excavators. Excavation work efficiency is reduced, there was a problem that increases the cost required for excavation work.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is to provide a camera when a tunnel excavator encounters high hardness obstacles such as rock concrete, stone, and reinforced concrete pile, earth anchor, H beam By locating the obstacles, the high temperature emitted from the high-temperature emitters quickly and completely destroys or cuts the obstacles, minimizing the wear of the cutter head, protecting the tunnel excavator, extending its life, and allowing long-distance propulsion. The present invention provides a tunnel excavator equipped with a mobile high heat emitter which saves time and cost for excavation work and does not affect the membrane by not using high pressure water to secure a working environment.

The present invention for realizing the above object, the front of the steel cylindrical front body is provided with a cutter head having an opening formed in the front, the hollow shaft is formed in the center rotatably coupled to the cutter head And a tunnel formed of a tail body having a cutter motor and a reducer coupled to the rear of the front cylinder and coupled to a plurality of steering jacks to drive the cutter head therein. An excavator, comprising: a guide rail installed in a longitudinal direction inside a hollow shaft of a front cylinder; A manipulator installed to be movable in the longitudinal direction along the guide rail; A first hydraulic cylinder installed on the rear side of the manipulator to move the manipulator in the longitudinal direction; An arm coupled to the front end of the manipulator, having a link structure which rotates in a direction perpendicular to the hollow shaft and which can be adjusted in position; A camera installed at the end of the arm so that the curtain can be observed through the opening of the cutter head; It characterized in that it comprises a high heat emitter is installed at the end of the arm so as to discharge the high heat forward through the opening of the cutter head.

1 is a side cross-sectional view showing a conventional tunnel excavator,

2 is a front view showing a conventional tunnel excavator,

Figure 3 is a side cross-sectional view showing a tunnel excavator with a mobile high heat emitter according to the present invention,

Figure 4 is a front view showing a tunnel excavator with a mobile high heat emitter according to the present invention,

Figure 5 is a side view showing the operating state of the main part of the tunnel excavator with a mobile high heat emitter according to the present invention.

<Description of Symbols for Main Parts of Drawings>

100; Forward barrel 200; Rear barrel

300; Cutter head 310; beat

320; Opening 410; Guide rail

420; Manipulator 430; 1st hydraulic cylinder

440; Arm 441; Joint

442; Second hydraulic cylinder 450; camera

460; High heat emitter 470; door

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

Figure 3 is a side cross-sectional view showing a tunnel excavator with a mobile high heat emitter according to the present invention, Figure 4 is a front view showing a tunnel excavator with a mobile high heat emitter according to the present invention, Figure 5 is in accordance with the present invention The side view which shows the operating state of the principal part of the tunnel excavator with a mobile high heat | fever emitter. As shown, the tunnel excavator equipped with a movable high heat emitter according to the present invention has a cutter head 300 having an opening 320 formed thereon in a rotatable manner and a first hydraulic cylinder along the guide rail 410. The manifold 420 is installed to be movable in the longitudinal direction by the 430, and an arm 440 that is rotatable and movable at the front end of the manifold 420 is coupled to the end of the arm 440. 450 and a front body 100 in which the high heat emitter 460 is installed, coupled to a plurality of steering jacks 210 at the rear of the front cylinder 100, and the cutter head 300 therein. It consists of a rear body (tail body) 200 is provided with a cutter motor 220 and a reducer 230 for driving the.

The front cylinder 100 is installed so that the cutter head (300) having a bit (310) and the opening 320 in the front side is rotatable, the hollow hollow shaft 110 having a hollow portion in the center is It is fixedly installed, the hollow shaft 110 is supported by a support bracket 120 extending from the inside of the front cylinder 100 and the gear box 130 is coupled to the outer periphery, the gear box 130 The first crusher 140 having a substantially trumpet shape extending from the outer periphery of the gearbox 130 while extending forward is screwed in the axial direction.

The first crusher 140 is extended to a diameter similar to the diameter of the front cylinder 100 is coupled to the cutter head 300, the cutter head 300 is a plurality of bits 310 and the opening 320 in the front In addition to the bit 310 may be provided with a roller cutter (not shown) according to the soil quality of the basement.

On the other hand, the hollow shaft 110 is provided with a second crusher 150 is fixed in the axial direction at one end, the end of the second crusher 150 is inclined surface plate 141 of the first crusher 140 along the outer peripheral surface The inclined surface plate 151 having a shape opposite to that is formed to form a circular first shredding space 160 that gradually narrows toward the rear between the inclined surface plates 141, 151, and the inside of the first shredding space 160. A circular passage 161 is formed in the rear portion, and a circular second crushing space 170 is formed behind the passage 161.

In addition, the guide rail 410 is installed in the longitudinal direction inside the hollow shaft 110, the manipulator 420 is installed on the guide rail 410 to be movable in the longitudinal direction, the manifold 420 The first hydraulic cylinder 430 is installed at the rear side.

The first hydraulic cylinder 430 receives hydraulic pressure through a hydraulic supply pipe 433 connected to a hydraulic pump (not shown) located on the ground, and one end of the cylinder 431 is formed on the rear surface of the hollow shaft 110 ( It is fixed to 111, the end of the piston rod 432 is coupled to the rear end of the manipulator 420. Therefore, the manipulator 420 is guided to the guide rail 410 by the compression and expansion of the first hydraulic cylinder 430 and moves in the longitudinal direction.

On the other hand, the manipulator 420 is provided with moving wheels 421 on both sides of the bottom, the guide rail 100 is made of a pair is installed side by side at regular intervals and moving wheels 421 on the inner side facing each other Is inserted is preferably a guide groove 411 having a cross-section of the "C" shaped to guide the upper and lower sides of the moving wheel 421 is formed. Therefore, the upper and lower sides of the moving wheel 421 are guided by the guide rails 410 to suppress the manipulator 420 from moving in the vertical direction so as to remain stable at a predetermined position during the excavation operation.

Arm 440 coupled to the front end of the manipulator 420 has a link structure that can be rotated in a direction perpendicular to the hollow shaft 110 and the position can be adjusted. Thus, the arm 440 not only rotates 360 degrees in the direction perpendicular to the longitudinal direction of the hollow shaft 110 from the manipulator 420 but also moves along the radial direction of the cutter head 300 by the end of the link structure. .

The arm 440 may be rotated in a direction perpendicular to the hollow shaft 110 by an arm motor (not shown) installed inside the manipulator 420, and the arm motor is preferably a hydraulic motor that operates hydraulically. Therefore, by using a hydraulic motor that has a strong and stable rotational force, the arm 440 operates normally even in the worst working environment during excavation.

In addition, the arm 440 is formed in a zigzag structure having a plurality of joints 441, the second hydraulic cylinder 442 is installed in each of the acute angle to control the bending and unfolding of the joints 441, respectively Each of the second hydraulic cylinders 442 is supplied with hydraulic pressure through a hydraulic supply pipe (not shown) connected to a hydraulic pump located on the ground like the first hydraulic cylinder 430, and the cylinder 442a and the piston rod 442b. ) Is hinged to the arm 440 with the joint 441 interposed therebetween. Therefore, as the end of the arm 440 moves inclined when moving along the radial direction of the cutter head 300 in accordance with the compression and expansion of the second hydraulic cylinder 442, the arm 440 has a small radius of action, thereby interfering even in a narrow space. Operation is possible without.

Arm 440 is equipped with a camera 450 and a high heat emitter 460 at the end.

The camera 450 is connected to the monitor of the cockpit located on the ground so that the manipulator 420 and the arm 440 operate so that the camera 450 observes through the opening 320 of the cutter head 300. Can be seen from the ground.

The high heat emitter 460 is moved by the arm 440 similarly to the camera 450 to crush the obstacle by emitting high heat toward the obstacle located at the closed surface through the opening 320 of the cutter head 300. That is, the high heat emitter 460 emits high heat to rock, stone, etc., and explodes due to sudden temperature rise of rock, stone, etc., and the reinforced concrete pile, earth anchor, H beam, etc. are cut by high heat.

On the other hand, the high heat emitted from the high heat emitter 460 is a high heat or oxygen (O ₂ ) generated when using the high heat generated by the arc discharge or when oxygen (O ₂ ) and acetylene (C ₂ H ₂ ) are combined. High heat generated when ignited by mixing with hydrogen (H ₂ ) can be used, and high heat can be released by other methods.

In addition, power for driving the high heat emitter 460 is a high heat dissipation wire 461 installed inside the manipulator 420 and the arm 440 via the rear cylinder 200 and the front cylinder 100 from the ground. Is supplied by

On the other hand, the front of the hollow shaft 110 of the front cylinder 100 is preferably a door 470 that is opened and closed by a third hydraulic cylinder 471. To this end, the door 470 is hinged to one side of the front surface of the hollow shaft 110 and can be opened and closed. The third hydraulic cylinder 471 is similar to the first and second hydraulic cylinders 430 and 442 from the hydraulic pump located on the ground. Receives hydraulic pressure, one end of the cylinder is hinged to the inside of the hollow shaft 110, the piston rod of the third hydraulic cylinder 471 is hinged to the door 470 by the operation to the third hydraulic cylinder 471 The door 470 is opened and closed. Therefore, the guide rail 410, the manipulator 420, the first hydraulic cylinder 430, the arm 440, the camera due to the soil and rock flowing through the opening 320 of the cutter head 300 during drilling The 450, the high heat emitter 460, and the like are prevented from being damaged.

The rear cylinder 200 is coupled to the front cylinder 100 and a plurality of steering jacks (210), the hydraulic device 211 and the direction modification jacks for supplying the hydraulic pressure to the direction modification jacks 210 on the inside A plurality of solenoid valves 212 for adjusting the stroke of the 210 is installed, a plurality of cutter motor 220 and a reducer 230 for driving the cutter head 300 is installed, The reducer 230 is geared to the gearbox 130 of the front cylinder (100).

In addition, the rear cylinder 200 is provided with a fang pipe 240 and a manifold pipe 250 connected to the ground at the inner lower end, the panel 260 is provided with a target and a plurality of gauges engraved on one end, The rear of the panel 260 is installed with a camera 270 that can observe the observation from the cockpit located on the ground.

Excavation work and operation of the tunnel excavator equipped with a mobile high heat emitter according to the present invention having such a structure is made as follows.

First, the vertical work tool is excavated at a predetermined position on the ground, and the tunnel excavator described above is introduced into the vertical work tool and installed. Aligning the cutter head 300 in the excavation direction, one propulsion pipe (not shown) to the rear of the rear barrel 200, and a hydraulic jack (not shown) for applying a pressing force in the excavation direction by using the reaction force in the tunnel excavator Install it.

Tunnel excavator is propelled with the propulsion pipe in the drilling direction by the hydraulic jack, the front of the cutter head 300 is in close contact with the ground. The driving force of the cutter motor 220 forms a high torque while passing through the reducer 230 to rotate the first crusher 140 and the cutter head 300.

The bit 310 rotates with the cutter head 300 to crush the soil and rock, and the crushed soil and rock are pushed into the first crushing space 160 through the opening 330 to be the first crusher 140. And finely crushed by the second crusher 150 to be pushed into the second crushing space 170 through the narrowly formed passage 161, the soil and rock pushed into the second crushing space 170 are fangs from the ground The mixture is mixed with the water flow supplied through the pipe 240 and discharged to the ground through the vane pipe 250.

When the tunnel excavator encounters an obstacle such as rock, stone, rebar or pile during the excavation work, the third hydraulic cylinder 471 is operated to open the door 470, and the first hydraulic cylinder 430 is operated to operate the manipulator. Advances 420 along the guide rail 410 and moves the camera 450 by appropriately operating the arm motor and the second hydraulic cylinder 442 to remove obstacles through the opening 320 of the cutter head 300. Know your location.

When the position of the obstacle is determined by the camera 450, the high heat emitter 460 installed adjacent to the camera 450 is approached to the obstacle in the same manner as the camera 450 is moved to emit high heat toward the obstacle. Break the obstacles.

The high heat emitter 460 emits high heat to rock, stone, etc. and explodes due to sudden temperature rise of rock, stone, etc., and the reinforcement, earth anchor, H beam, etc. of the reinforced concrete pile are cut by high heat. Therefore, the high-temperature emitter 460 instantaneously destroys or cuts the high hardness obstacle to enable rapid excavation operation.

When the obstacle is cut or crushed, the second hydraulic cylinder 442 is operated to fold the arm 440 to operate the first hydraulic cylinder 430 to move the manipulator 420 to the rear side, and then to the third hydraulic cylinder ( 471 is operated to close the door 470.

The operation of the tunnel excavator for this series of excavation work is carried out in the cockpit located on the ground, if the tunnel excavator is propelled by the length of the propulsion pipe retracts the hydraulic jack and inserts another propulsion pipe is repeated.

According to a preferred embodiment of the present invention as described above, when the tunnel excavator encounters high hardness obstacles, such as rock concrete, stone, and reinforced concrete piles, earth anchors, H beams when excavating, after determining the location of the obstacle with a camera By breaking and cutting obstacles quickly and completely with the high heat emitted from the emitter, it minimizes the wear of the cutter head, protects the tunnel excavator, extends its life, enables long-distance propulsion, It saves cost and does not affect the membrane by not using high pressure water to secure working environment safely.

As described above, the tunnel excavator equipped with a mobile high temperature emitter according to the present invention is an obstacle with a camera when the tunnel excavator encounters a hard rock such as a rock, a stone, or a high hardness obstacle such as a reinforced concrete pile, earth anchor, or an H beam. After the location is determined, the high temperature emitted from the high-temperature emitter can quickly and completely destroy or cut the obstacles, minimizing the wear of the cutter head, protecting the tunnel excavator, extending its life, and allowing long-distance propulsion. It saves time and cost for work, and does not affect the membrane by not using high pressure water, which has the effect of securing the working environment safely.

What has been described above is only one embodiment for implementing a tunnel excavator with a mobile high heat emitter according to the present invention, and the present invention is not limited to the above embodiment, as claimed in the following claims. Without departing from the gist of the present invention, anyone of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (1)

A cutter head having an opening formed at the front thereof is installed, and a hollow cylindrical front body having a hollow shaft for rotatably coupling the cutter head at the center thereof, and a plurality of rear portions of the front cylinder. In a tunnel excavator, which is coupled to a steering jack and comprises a tail motor having a cutter motor and a reducer for driving the cutter head therein, A guide rail installed in the longitudinal direction inside the hollow shaft of the front cylinder; A manipulator installed to be movable in the longitudinal direction along the guide rail; A first hydraulic cylinder installed at a rear side of the manipulator to move the manipulator in a longitudinal direction; An arm coupled to the front end of the manipulator, having a link structure which rotates in a direction perpendicular to the hollow shaft and whose position is adjustable; A camera installed at the end of the arm to observe the face through the opening of the cutter head; A high heat emitter installed at the end of the arm to discharge high heat forward through the opening of the cutter head; Tunnel excavator with a mobile high heat emitter, characterized in that it comprises a.