KR102509897B1 - Moving type perforator with three perforating rods for free surface formation and the method of forming free surface on rock using the same - Google Patents

Abstract

The present invention relates to a drilling machine capable of improving the speed and accuracy of forming a free surface by continuously moving a three-axis drilling rod to perform drilling. According to the present invention, the drilling machine comprises: a drilling frame body composed of a rectangular support frame, a pair of moving guide rods installed on the support frame, and a moving means; a moving cart which moves left and right along the moving guide rod by the moving means; and a drilling body which is fixedly installed on the moving cart to form a drilling hole in the bedrock. The drilling body is provided so that three drilling rods with drilling bits attached to each end form one row, but adjacent drilling bits are overlapped with each other.

Description

Triple moving drilling machine for free surface formation and method for constructing free surface of rock mass using the same

The present invention relates to a drilling means for forming a free surface when excavating underground rock mass, and more specifically, improves the speed and accuracy of forming a free surface by continuously moving a three-axis drilling rod to perform drilling. It relates to the structure of a drilling machine that can be used and the free surface construction method of rock mass for excavation.

During the underground excavation process for an underground tunnel, an operation of excavating or removing a bedrock may be accompanied. As a representative method of such a bedrock excavation, a drill & blast method is widely used. However, these blasting methods not only cause many civil complaints due to noise or vibration, but also cause environmental damage and safety accidents.

In order to solve this problem, a plurality of drilling holes are formed in the rock mass by using a drilling device for the corresponding rock mass, and a rock crushing device, a separate device, is reinserted into the drilling hole to expand the drilling hole and destroy the rock mass without vibration. Mechanical excavation is gaining popularity, especially in urban areas.

In addition, since rock crushing only by drilling holes does not have a large crushing range due to the restraining force of the rock mass, an excavation method that induces destruction while reducing the above-described restraining force of the rock mass through the formation of a free surface in which the rock mass is cut is developed and applied. there is.

Formation of such a free surface is generally performed by forming a plurality of perforated holes at predetermined intervals in the longitudinal direction to be excavated, then cutting between each perforated hole with a cutting device such as a wire saw or re-drilling between each perforated hole. It is made in such a way that the entire bedrock has a continuously cut shape.

For example, (a) of FIG. 1 shows an example in which a free surface is formed by cutting between each of the perforation holes with a cutting device, and (b) of FIG. example is shown. However, in the case of the former, there is a problem in that a lot of dust is generated along with loud noise during the cutting operation of the cutting equipment. Also in the case of the latter, since the space between the perforation holes on both sides is narrow, it is not easy to accurately form the perforation holes in such a narrow space, so there is a problem in that work efficiency is lowered.

On the other hand, efforts are also being made to provide a plurality of perforation means so that the plurality of perforation holes can be formed more quickly.

For example, FIG. 2 includes a plurality of configurations for operating a pair of core drills 20, which are drilling means, by a single drive unit 40 so that several drilling holes can be formed at the same time.

Accordingly, there is an advantage in that a plurality of drilling holes can be formed at the same time at the time of primary drilling, but not only do several driving units have to be used, but the supporter 13 that holds the movement of the core drill 20 at the start of drilling Although provided, the supporter 13 is not deeply embedded in the surface of the bedrock, so it does not perfectly catch the movement of the tip when a plurality of core drills 20 operate simultaneously, so that a drilling hole is drilled in place. It is not easy to form. Moreover, in the case of secondary drilling, as described above, the drilling hole has to be precisely formed in the narrow space between both sides of the drilling hole.

KR 10-2019-0027580 A

The present invention is to solve the above problems of the prior art, and improves the formation speed of the free surface by using a plurality of drilling means, and drilling in a narrow space between the drilling holes by mutually overlapping the drilling holes. It is intended to provide a triple movement drilling machine capable of forming a free surface quickly and accurately by omitting the drilling hole and preventing the movement of the drilling means by using the interaction between the drilling holes and enabling continuous drilling and a free surface construction method using the same.

According to the most preferred embodiment of the present invention for solving the above problems, a perforated frame body composed of a rectangular support frame, a pair of moving guide rods installed on the support frame, and a moving means, and moved by the moving means It consists of a moving cart that moves left and right along the guide rod, and a punching body fixed to the moving cart to form a drilling hole in the bedrock. The drilling body includes three drilling rods with drilling bits attached to each tip. It is provided to form one row, but a triple movement drilling machine for forming a free surface is provided, characterized in that adjacent drilling bits overlap each other.

The three piercing rods are composed of a central rod to which a center bit is attached, a first side rod to which a first side bit is attached and a second side rod to which a second side bit is attached and positioned on both sides of the center rod, respectively. , At least one of the central bit, the first side bit, and the second side bit protrudes forward more than the rest, so that the drilling hole can be formed stably.

The three drilling rods constituting one row can be operated by each drilling power body, and can be operated by only one drilling power body.

This drilling power body is fixedly installed on a slide plate, and a slide pipe is provided in the slide plate so that a pair of rod guide rods can be inserted. By being fixed, the perforated body can be made to behave integrally. At this time, a load hydraulic jack may be installed between the slide plate and the rear end fixing plate for the above behavior.

A first double bushing and a second double bushing, which are spaced apart from each other and each have a pair of bushings, are installed on the moving bogie, and a pair of perforated body guide rods are installed on the front end fixing plate and the rear end fixing plate. By making it fixedly installed in a state inserted into the double bushing, it is possible to stably move the perforated body. For the movement of the punching body, a punching body hydraulic jack may be installed between the moving cart and the rear end fixing plate.

The three drilling rods constituting one row are provided with a circular step groove 312 at each tip, and each step groove is inserted into a single triple bushing equipped with three bushings, so that the triple bushing While moving along with the forward movement of the perforation rod, it is possible to maintain a constant distance between the front ends of each perforation rod.

The support frame is composed of a first transverse frame positioned at the rear, a second transverse frame positioned at the front, and left and right throttles coupled to the left and right ends of the first and second transverse frames, respectively, and the moving guide rods include first and second transverse frames. It is possible to easily move the moving cart left and right by installing it at a distance from the first and second transverse frames at the top of the two transverse frames.

The tip fixing plate may be protruded forward and installed with an upper support for stably fixing the perforated body to the bedrock. In addition, in order to stably fix the perforated frame body to the bedrock, the left and right support points may be installed on the left and right front surfaces of the second transverse frame so as to protrude forward, respectively.

The moving cart is composed of first and second moving pipes configured to surround a pair of moving guide rods, respectively, and a moving connecting rod connecting the first and second moving pipes, and a perforated body may be installed on the moving connecting rod. At this time, a left support bracket and a right support bracket are installed on each of the left and right rottles, a screw rod having a male thread is installed between the left support bracket and the right support bracket, and the moving connecting rod is moved by the rotation of the screw rod. It is possible to enable detailed movement of the moving cart by installing a female thread into which the screw rod is inserted in a screw fastening method so that the bogie can move left and right.

In order to free the formation direction of the free surface, a rotating body may be installed at the rear of the support frame. In this case, the rotating body includes a rotating plate fixed to the supporting frame, a rotating plate integrally coupled with the rotating plate, and In order to rotate the rotating contact plate, it may be composed of a rotational body provided with a rotational motor, so that the support frame rotates by the operation of the rotational motor.

In order to adjust the verticality of the rock surface, an angle adjuster may be installed at the rear of the rotating body, and in this case, the angle adjusting body is fixed to the rotating fixing plate fixed to the rear surface of the rotating body and to both sides of the rotating fixing plate. A pair of vertical plates installed vertically, a pair of horizontal guides hinged to the pivot fixing plate while connecting and integrating the pair of vertical plates, and an adjustment jack installed on the vertical plate to adjust the angle of the pivot fixing plate can be configured.

In addition, as a method of forming a free surface for excavation in a rock mass by using the above-described triple-movement drilling machine, three drilling holes are formed so as to overlap each other with the drilling body in a state in which the support frame of the drilling frame body is closely fixed to the surface of the rock mass, While maintaining the fixed state of the perforation frame body in the rock mass, the moving cart is moved in one direction along the moving guide rod installed on the support frame to form another three mutually overlapping drilling holes to overlap with the previously formed drilling holes. There is provided a free surface construction method for rock mass, characterized in that the free surface for excavation is formed in the rock mass by repeating the operation.

The present invention continuously forms a free surface longer than the width of the perforation hole by a plurality of overlapping perforation holes, thereby eliminating the need for another perforation or cutting operation between the perforation holes, thereby providing an efficient and efficient free surface formation operation. allow to proceed.

In addition, in the present invention, not only the drilling operation is performed in the state where the triangular support structure is made, but also the drilling operation is performed by the rest of the drilling bits in the state in which the drilling body is fixed by the drilling bit by performing partial drilling by any one drilling bit. Since this is in progress, the drilling work is performed in a very stable structure, enabling the precision of construction to be promoted.

1 is an explanatory view of a free surface forming method according to the prior art.
2 is a plan view of a prior art drilling device.
3 is a perspective view of a triple movement drilling machine according to an embodiment of the present invention.
4 is a front view of the triple movement drilling machine.
5 is a plan view of the triple movement drilling machine.
6 is a side view of the triple movement drilling machine.
7 is an exploded perspective view of the rotating body of the present invention.
8 is a perspective view of the angle adjuster of the present invention.
9 to 15 are explanatory diagrams for each step of the method of constructing a free surface of a bedrock using the triple moving drilling machine.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in the description of the present invention, when the technical idea of the present invention is blurred or unclear due to the detailed description of the known configuration, the description of the configuration of the above known will be omitted.

Figures 3 to 6 each show the shape of a triple movement drilling machine according to an embodiment of the present invention, Figure 3 is a perspective view of the triple moving drilling machine, Figure 4 is a view from the front end side in the excavation direction, Figure 5 6 shows it viewed from the top, and FIG. 6 shows it viewed from the side.

The triple moving drilling machine of the present invention is a drilling device for forming a free surface for rock excavation, and as shown in FIGS. .

The drilling body 300 is provided with a drilling rod 310 to which a drilling bit 311 is attached to form a drilling hole in the bedrock, and is fixedly installed on the mobile cart 200.

In this way, the moving cart 200 on which the punching body 300 is fixed moves left and right along a pair of moving guide rods 120 installed on the upper part of the rectangular support frame 110 constituting the punching frame body 100. while allowing the drilling work to be performed continuously.

It is no different from a general drilling machine in that the drilling rod 310 to which the drilling bit 311 is attached to the tip is rotated by the drilling power body 363 to form a drilling hole. That is, the drilling power body 363 is composed of a hydraulic motor or an electric motor to rotate the drilling rod 310 to enable the drilling bit 311 to form drilling holes in the rock mass.

However, as shown in FIG. 4, in the punching body 300 of the present invention, three punching rods 310 are provided to form one row, and the punching rods 310 are attached to each end. One of the important technical features is that the bit 311 has a structure overlapping with the adjacent punching bit 311. One row formed by the above three perforation rods 310 may be straight or curved.

In the punching body 300 of the present invention having a structure in which adjacent drilling bits 311 overlap each other, three drilling holes are simultaneously formed by one drilling operation, and the three drilling holes communicate with each other By having the structure, it is possible to maximize the formation speed of the free surface by eliminating the need for additional work such as cutting between drilling holes.

Another embodiment of the present invention has an important technical feature in that at least one of the drilling bits 311 provided in each drilling rod 310 is configured to protrude forward more than the rest.

That is, the three piercing rods 310 are the central rod 310A to which the central bit 311a is attached, and the first side rod to which the first side bit 311b is attached while being positioned on both sides of the central rod 310A. 310B and a second side rod 310C to which a second side bit 311c is attached, at least one of the center bit 311a, the first side bit 311b, and the second side bit 311c. By making one protrude more forward than the others, the accuracy and efficiency of the drilling operation is improved.

For example, the drilling bit 311 protruding forward is drilled into the rock as much as it protrudes earlier than the rest of the drilling bits 311 and becomes a solid fixing means for the drilling bit 311 that has not yet penetrated the rock, so that subsequent drilling is performed. The bit 311 makes it possible to dig into the bedrock directly without shaking at the position to be drilled.

At this time, the first side bit 311b attached to the first side rod 310B located on both sides or the second side bit 311c attached to the second side rod 310C may protrude forward. It is preferable to configure the central bit (311a) attached to the central rod (310A) located at the front to protrude more than the first and second drilling bits (311b, 311c) on both sides.

Each puncture rod 310 in the present invention is operated simultaneously. Therefore, as described above, when the first and second drilling bits 311b and 311c on both sides start to drill in the state in which the center bit 311a located in the center is first drilled and inserted into the rock mass, the power is balanced on both sides. Drilling can be performed more efficiently.

Each of the three drilling rods 310 constituting one row may be provided with an individual drilling power body 363, but gears installed at the upper end of the drilling rod 310 for rotation are engaged with each other to provide one drilling power. Using only the sieve 363, three puncture rods 310 can be operated simultaneously.

However, as in the former, the three drilling rods 310 are each operated by individual drilling power bodies 363, or the latter three drilling rods 310 are operated by one drilling power body 363. However, each of the front ends of these three drilling rods 310 maintains the same spacing without mutual opening during the drilling process, so that each drilling hole formed by the three drilling bits 311 does not overlap or overlap excessively. Should be.

In one embodiment of the present invention for this purpose, as shown in the detailed view of FIG. 5, the three perforation rods 310 constituting one row are provided with circular stepped grooves 312 at each end, and each of them The stepped groove 312 is inserted into each bushing of the single triple bushing 330 having three bushings. Therefore, even if the front end of the drilling rod 310 moves away from the tip fixing plate 370 to be described later as the degree of drilling increases, the triple bushing 330 moves along with the forward movement of the drilling rod 310 while drilling each hole. By constraining the ends of the rod 310, each gap between them is not widened or narrowed, and the gap at the start point of the perforation can be maintained constant.

The drilling power body 363 is configured to move along a pair of rod guide rods 350. The pair of rod guide rods 350 have front and rear ends respectively fixed by front and rear fixing plates 370 and rear fixing plates 380 respectively installed in the front and rear of the moving cart 200. In addition, the front end fixing plate 370 and the rear end fixing plate 380 are fixed together by a pair of rod guide rods 350 and a pair of punching body guide rods 340 to be described later, thereby forming a drilling body 300. to have a structurally stable quadrangular cross-section frame structure.

As described above, the drilling power body 363 is fixed to the slide plate 361 so as to be movable along the rod guide rod 350, and a pair of rod guide rods 350 are inserted into the slide plate 361. A slide tube 362 is provided so that it can be.

In addition, the front end fixing plate 370 and the rear end fixing plate 380 are composed of plate-like members, and the front end fixing plate 370 is provided with three through holes 371 so that each perforated rod 310 is connected to the front end fixing plate 370. ) to enable excavation of the bedrock by the drilling bit 311 while moving forward. At this time, the upper support support 372 may protrude forward and be installed on the tip fixing plate 370, and in addition, a support hydraulic jack 372a may be installed at the rear of the upper support support 372 to advance it.

When the drilling operation starts, the drilling body 300 needs to be closely fixed so as not to move on the surface of the rock mass. To this end, fixation of the perforated body 300 to the surface of the rock must be firmly maintained, such as by providing a tip on the front surface of the upper support point 372 so that it is embedded and fixed to the rock.

Forward movement of each drilling rod 310 is performed as the drilling power body 363 moves forward along the rod guide rod 350. To this end, a rod hydraulic jack 364 for moving the drilling power body 363 forward or backward may be installed between the slide plate 361 fixedly installed with the drilling power body 363 and the rear end fixing plate 380. there is.

The operation of forming a drilling hole while the drilling rod 310 equipped with the drilling bit 311 moves forward is performed in a state in which the drilling body 300 is tightly fixed to the surface of the rock mass.

Specifically, the support frame 110 of the perforation frame body 100 is closely fixed to the surface of the rock mass, and then the perforation body 300 is moved forward so that the tip fixing plate 370 of the perforation body 300 is also attached to the surface of the rock mass. After closely fixing, the drilling power body 363 and the drilling rod 310 are moved forward by the rod hydraulic jack 364 so that rock drilling is performed by rotation of the drilling power body 363.

Therefore, the punching body 300 is coupled to the moving cart 200 so as to be movable forward from the moving cart 200.

To this end, a first double bushing 320a and a second double bushing 320b are installed on the moving cart 200 and are spaced apart from each other and each has a pair of bushings. In addition, as described above, a pair of perforated body guide rods 340 are fixedly installed between the front end fixing plate 370 and the rear end fixing plate 380 in the same structure as the pair of rod guide rods 350, and the pair By allowing the perforated body guide rod 340 to be inserted into each bushing of the first double bushing 320a and the second double bushing 320b, the perforated body 300 can move forward with respect to the moving cart 200. have a structure

The forward movement of the punching body 300 relative to the moving cart 200 can be achieved by installing the punching body hydraulic jack 321 between the moving cart 200 and the rear end fixing plate 380.

The support frame 110 constituting the perforation frame body 100 includes a first horizontal frame 111 located at the rear, a second horizontal frame 112 located at the front, and the left and right sides of the first and second horizontal frames 111 and 112. It consists of a left vertical rottle 113 and a right rottle 114 which are coupled to each end to form a square shape.

As will be described later, the support frame 110 can change the perforation position while rotating from side to side, and the rotation body 400 can be installed at the rear of the support frame 110. It is installed on the first transverse frame 111 located at the rear.

In addition, the support frame 110 should be fixed to the surface of the bedrock first, as described above, when the drilling operation starts, and the fixing means for this is the upper support point 372 provided on the tip fixing plate 370. no different from the structure.

That is, left and right support points 115 and right support points 116 may be respectively protruded forward and installed on the left and right sides of the front side of the second transverse frame 112 located in the front. At each rear of the left support point 115 and the right support point 116, support hydraulic jacks 115a and 116b for advancing them may be respectively installed. In this case, the support frame 110 is in close contact with the surface of the rock mass via the left support point 115 and the right support point 116. The fixation of the support frame 110 to the rock surface, such as being driven and fixed, must be firmly maintained.

The moving cart 200 enables continuity of drilling work while moving in the longitudinal direction of the first and second support frames 110 . As described above, the moving cart 200 moves left and right along the moving guide rod 120. Accordingly, a pair of the moving guide rods 120 are installed in the longitudinal direction from the top of the first and second support frames 110 .

In addition, the moving cart 200 is provided with first and second moving tubes 210 and 220 formed to surround the pair of moving guide rods 120, respectively. The first and second moving pipes 210 and 220 have a tubular shape and have a structure into which a moving guide rod 120 is inserted, thereby preventing the moving cart 200 from being separated from the perforation frame 100. In addition, the first and second moving tubes 210 and 220 should be able to slide along the moving guide bar 120, respectively. Therefore, the moving guide rod 120 should be installed apart from the first and second transverse frames 111 and 112. The separation between the first and second transverse frames 111 and 112 and the moving guide bar 120 may be installed by the connection plate 121 .

The first moving pipe 210 and the second moving pipe 220 are connected by a moving connecting rod 230, and the punching body 300 is installed on the moving connecting rod 230. The first and second double bushings 320a and 320b into which the punching body guide bar 340 for the forward and backward movement of the punching body 300 is inserted are fixedly installed on the movable connector 230 .

The perforation frame body 100 is further provided with a moving means 130 for moving the moving cart 200 left and right.

The moving means 130 is installed on the support frame 110 and may be composed of a chain, a belt, or a gear means. However, here, an embodiment in which the moving means 130 is implemented using a screw means that can promote precision in movement will be described.

To this end, the left support bracket 133 is installed on the left vertical throttle 113 and the right support bracket 134 is installed on the right vertical rottle 114. At least one screw rod 132 having a male thread is installed between the left and right support brackets 133 and 134, and rotating holes 133a and 134a are installed on the left to allow the screw rod 132 to rotate in place. , Uji support brackets 133 and 134 are provided respectively. In addition, a female screw body 231 into which the screw rod 132 is inserted in a screw fastening method is installed on the moving connector 230.

Therefore, when the screw rod 132 rotates, the female screw body 231 moves to the left or right according to the rotation direction of the screw rod 132, and moves the moving cart 200 to the left or right.

A moving motor 131 for rotating the pair of screw rods 132 is installed on either one of the left vertical throttle 113 and the dominant throttle 114.

The above-described rotational body 400 may be installed at the rear of the support frame 110 configured as described above, and in addition, an angle adjusting body 500 may be further installed at the rear of the rotational body 400.

FIG. 7 shows the rotational body 400 disassembled, and FIG. 8 shows the angle adjusting body 500 installed at the rear of the rotational body 400.

The rotational body 400 rotates the support frame 110 to freely adjust the formation direction of the free surface with respect to the bedrock horizontally, vertically, or inclinedly, as shown in FIG. 7, the rotating plate ( 410), a rotating plate 420, and a rotating main body 430.

The rotating plate 410 is fixed to the first horizontal frame 111 at the rear. Therefore, the support frame 110 rotates according to the rotation of the rotating plate 410 .

The rotary plate 420 rotates through a gear unit (not shown) provided inside the rotary body 430 and rotates the rotary plate 410 integrally coupled thereto.

A rotation motor 440 for rotating the rotation plate 420 is installed in the rotation body 430 as described above.

The perforation frame 100 should be placed perpendicularly to the rock surface. However, the rock surface of the drilling target has various inclination angles.

As described above, the angle adjusting body 500 of the present invention adjusts the angle of the drilling frame 100 so that the drilling frame 100 is placed vertically according to the case where the rock surface has various inclination angles.

As shown in FIG. 8, the angle adjuster 500 includes a rotation fixing plate 510, a pair of vertical plates 530, a pair of horizontal fixing rods 520, and an adjusting jack 540.

The pivoting fixing plate 510 is fixedly installed on the rear surface of the pivoting main body 430 to adjust the inclination angle of the support frame 110 while moving with the pivoting main body 430, so that hinge means are installed at both ends in either direction And, at least one side end of both ends in the other direction orthogonal to this is provided with a movable means.

A pair of vertical plates 530 are installed in the vertical direction on both sides of the rotating fixing plate 510. These pair of vertical plates 530 are integrated by being connected by a pair of horizontal fixing rods 520.

The horizontal fixing table 520 is hinged to the pivoting fixing plate 510 so that the pivoting fixing plate 510 can be tilted left and right by a movable means.

The hinge means and the movable means can be configured by changing various structures, and in the embodiment of FIG. 8, an insertion hole 510 is formed in the rotation fixing plate 510, and an adjustable hinge bracket 512 is installed on the lower surface thereof do. In addition, the horizontal holder 520 is provided with a hinge piece 521 inserted into the insertion hole 510, and the hinge piece 521 is coupled to the adjustable hinge bracket 512 with a hinge pin to rotate the fixing plate 510 and Horizontal fixing stand 520 is able to adjust the inclination angle of the support frame 110 through mutual rotation.

An adjustment jack 540 for adjusting the angle of the pivoting fixing plate 510 is installed on the vertical plate 530 as a movable means. The adjustment jack 540 may be installed on both of the pair of vertical plates 530 or only on either side. One end of the adjusting jack 540 is fixed to the rotation fixing plate 510.

Therefore, as shown in FIG. 8, when the adjusting jack 540 is installed on each of the vertical plates 530 on both sides, while extending the adjusting jack 540 on either side, if the adjusting jack 540 on the other side is reduced correspondingly, The rotating fixing plate 510 can accurately adjust the inclination angle of the support frame 110 while rotating with the hinge pin coupled to the adjusting hinge bracket 512 as a central axis.

The installation of the adjustment jack 540 is hinged so that the cylinder of the adjustment jack 540 can rotate in the vertical plate 530 by installing the cylinder hinge bracket 531 on the vertical plate 530, and the rotation fixing plate ( By installing load hinge brackets 513 at both ends of 510, the extension rod of the adjusting jack 540 may be hinged.

On the top of the vertical plate 530, a gripper 550 is installed in the direction of the horizontal holder 520 so that gripping by heavy equipment is possible.

9 to 15 show the construction process of forming a free surface using the triple movement drilling machine of the present invention described above according to each step. This will be described with reference to each drawing.

9 illustrates a process of attaching the support frame 110 of the perforation frame body 100 to the bedrock, (a) is a view from the top, and (b) is a view from the side.

First, by rotating the support frame 110 in a direction in which a free surface is to be formed using the rotation body 400, the perforation frame body 100 can be placed in the correct position.

Next, as shown in FIG. 9, the left support point 115 and the right support point 116 are formed by operating the support hydraulic jacks 115a and 116a located behind each of the left support point 115 and the right support point 116. By pressurizing the surface, the peaks on the front of the left and right support points 115 and 116 are driven into the surface of the bedrock, preventing the perforation frame 100 from departing from the direction of the set free surface.

At the same time, the angle adjusting body 500 is operated so that the perforation frame 100 is placed vertically with respect to the surface of the bedrock, thereby completing the posture adjustment of the perforation frame 100.

10 and 11 explain the step of fixing the position of the punching body 300 with respect to the surface of the rock mass with drawings.

When the posture adjustment of the perforation frame body 100 is completed so as to be vertical while being in close contact with the surface of the rock mass via the left and right support points 115 and 116, first, as shown in FIG. 10, the perforated body hydraulic jack 321 is operated The punching body 300 is moved forward. When the forward movement of the punching body 300 is completed, as shown in (a) and (b) of FIG. The peak provided on the front is driven into the surface of the bedrock. As a result, by the left and right sides of the support frame 110 and each support bar 115, 116, 372 by the front end fixing plate 370, the triple movement drilling machine of the present invention is stable in a stable fixed state of the triangular support as shown in FIG. 11 (c). While maintaining it, it is possible to proceed with the formation of the drilling hole.

12 and 13 explain the operation of forming a drilling hole in a bedrock in earnest with drawings.

By operating the load hydraulic jack 364 installed between the rear end fixing plate 380 and the slide plate 361, the three drilling rods 310 forming one row are simultaneously moved forward while the rotational force of the drilling power body 363 By drilling the bedrock, three drilling holes can be formed at the same time.

At this time, the three drilling bits 311 provided at each tip of each drilling rod 310 are overlapped with each other, and the three drilling holes are also formed by overlapping each other.

In addition, when any one of the three drilling bits 311, for example, the center bit 311a protrudes forward from the rest of the first and second drilling bits 311b and 311c as shown in FIG. Drilling by the bit 311a starts first, whereby the first side bit 311b and the second side bit 311c on both sides are stuck in the center of the drilling hole as shown in FIG. Since the drilling starts in a state where the position is fixed so that no movement occurs by the bit 311a, it is possible to perform the drilling work very stably and efficiently.

14 and 15 illustrate the step of moving the drilling body 300 to complete the primary drilling hole forming operation and to perform the secondary drilling hole forming operation adjacent to this.

When the primary drilling operation is completed, as shown in FIG. 14, the drilling rod 310 is retracted by operating the rod hydraulic jack 364 and the drilling body hydraulic jack 321 is operated to remove the drilling body 300. Retract and away from the rock surface. However, the perforation frame body 100 tightly fixed to the surface of the bedrock remains fixed by the left support point 115 and the right support point 116.

The movement of the punching body 300 for the secondary drilling hole formation operation is carried out by moving the moving cart 200 to the support frame (as shown in FIG. After moving in one direction along the moving guide rod 120 installed in 110), another three mutually overlapping drilling holes are formed in the same way as the first one, and by repeating the drilling hole formation operation, the planned free surface complete the formation. At this time, the three perforation holes formed later should be overlapped with the previously formed perforation holes so that the inconvenience of drilling or cutting between the perforation holes again should not occur. Since the moving means 130 using the screw rod 132 enables detailed movement, it is very easy to overlap the above-described drilling holes.

Reference numeral '135' is a mounting bracket for installing the moving motor 131.

In the above, the present invention has been described in detail with reference to specific embodiments, but since the above embodiments are merely examples to make the present invention easier to understand, those skilled in the art are within the scope of the technical idea of the present invention. It is obvious that it will be possible to carry out various modifications within. Therefore, it will be said that such modifications fall within the scope of the present invention as described in the claims.

100; Perforated frame body 110; support frame
111; First horizontal frame 112; 2nd transverse frame
113; Left vertical rottle 114; wooserotl
115; Left point zone 115a, 116a, 372a; branch hydraulic jack
116; Uji point 120; moving guide rod
121; connecting plate 130; transportation
131; moving motor 132; screw rod
133; Left support brackets 133a, 134a; spinning ball
134; Uji support bracket 200; mobile bogie
210; first moving pipe 220; 2nd moving hall
230; Moving connecting rod 231; female thread
300; perforated body 310; perforated rod
310A; central rod 310B; 1st side rod
310C; Second side rod 311; drill bit
311a; center bit 311b; 1st side bit
311c; second side bit 312; step home
320a; a first double bushing 320b; 2nd double bushing
321; Perforated body hydraulic jack 330; triple bushing
340; Perforated body guide rod 350; rod guide rod
361; slide plate 362; slide pipe
363; Perforation power body 364; load hydraulic jack
370; Front end fixing plate 371; through hole
372; upper point band 380; rear end fixing plate
400; round body 410; rotating plate
420; rotating plate 430; rotating body
440; rotation motor 500; angle adjuster
510; Rotating fixed plate 511; insertion hole
512; Adjustable hinge bracket 513; load hinge bracket
520; horizontal guide 521; hinge side
530; vertical plate 531; cylinder hinge bracket
540; control jack 550; gripper

Claims (17)

In order to form a free surface for rock excavation, a perforation frame body 100 composed of a rectangular support frame 110, a pair of moving guide rods 120 installed on the support frame 110, and a moving means 130 And, a moving cart 200 that moves left and right along the moving guide rod 120 by the moving means 130, and a punching body 300 fixed to the moving cart 200 to form a drilling hole in the bedrock ), and the punching body 300 is provided so that three punching rods 310 to which the punching bits 311 are attached to each end form one row, but between adjacent drilling bits 311 As a drilling device in which are overlapped with each other,
The three piercing rods 310 include a central rod 310A to which a central bit 311a is attached, and a first side rod to which a first side bit 311b is attached while being positioned on both sides of the central rod 310A. (310B) and a second side rod (310C) to which a second side bit (311c) is attached, and the center bit (311a) attached to the center rod (310A) is the first and second side rods ( 310B, 310C) protrudes forward from the first and second drilling bits 311b and 311c attached to each,
The three drilling rods 310 constituting one row are provided with a circular stepped groove 312 at each front end, and each stepped groove 312 is attached to a single triple bushing 330 equipped with three bushings. Each is inserted, and the triple bushing 330 moves along with the forward movement of the puncture rod 310 while maintaining a constant distance between the front ends of each puncture rod 310,
An upper support stand 372 protrudes forward on the front end fixing plate 370 installed toward the front of the moving cart 200 and provided with three through holes 371 through which the perforation rod 310 passes,
The support frame 110 is left and right respectively coupled to the left and right ends of the first horizontal frame 111 located at the rear, the second horizontal frame 112 located at the front, and the first and second horizontal frames 111 and 112, respectively. It consists of frames 113 and 114, and the left and right support points 115 and the right support point 116 are protruded forward and installed on the left and right sides of the front surface of the second transverse frame 112, respectively. mobile puncher. delete delete According to claim 1,
The three drilling rods 310 forming one row are operated by one drilling power body 363, characterized in that the triple movement drilling machine for forming a free surface. According to claim 4,
The drilling power body 363 is fixedly installed on the slide plate 361,
The slide plate 361 is provided with a slide pipe 362 so that a pair of rod guide rods 350 can be inserted.
The front and rear ends of the pair of rod guide rods 350 are fixed by a front end fixing plate 370 and a rear end fixing plate 380. According to claim 5,
A triple movement drilling machine for forming a free surface, characterized in that a load hydraulic jack 364 is installed between the slide plate 361 and the rear end fixing plate 380. delete According to claim 5,
A first double bushing 320a and a second double bushing 320b are installed on the mobile cart 200 and are spaced apart from each other and each has a pair of bushings.
A pair of perforated body guide rods 340 are fixedly installed on the front end fixing plate 370 and the rear end fixing plate 380 while being inserted into the first double bushing 320a and the second double bushing 320b. Triple travel drilling machine for forming free faces. According to claim 8,
A triple moving drilling machine for forming a free surface, characterized in that a punching body hydraulic jack 321 is installed between the moving cart 200 and the rear end fixing plate 380. delete According to claim 1,
The movement guide rod 120 is a triple movement drilling machine for forming a free surface, characterized in that installed at the top of the first and second transverse frames (111 and 112) and spaced apart from the first and second transverse frames (111 and 112). delete According to claim 1,
The moving cart 200 consists of first and second moving pipes 210 and 220 configured to surround a pair of moving guide rods 120, respectively, and a moving connecting rod 230 connecting the first and second moving pipes 210 and 220. And the punching body 300 is a triple moving punching machine for forming a free surface, characterized in that installed on the moving connecting rod 230. According to claim 13,
A left support bracket 133 and a right support bracket 134 are installed on each of the left and right vertical rottles 113 and 114, and a screw having a male thread is formed between the left support bracket 133 and the right support bracket 134. The rod 132 is installed,
A female screw body 231 into which the screw rod 132 is inserted in a screw fastening method is installed in the movable connector 230 so that the mobile carriage 200 can move left and right by the rotation of the screw rod 132. A triple travel drilling machine for forming free faces. According to claim 1,
A rotating body 400 is installed at the rear of the support frame 110,
The rotating body 400 includes a rotating plate 410 fixed to the support frame 110, a rotating plate 420 integrally coupled with the rotating plate 410,
It consists of a rotation body 430 equipped with a rotation motor 440 to rotate the rotation plate 420,
Triple movement drilling machine for forming a free surface, characterized in that the support frame 110 rotates by the operation of the rotation motor 440. According to claim 15,
An angle adjusting body 500 is installed at the rear of the rotating body 400,
The angle adjusting body 500 includes a rotation fixing plate 510 fixedly installed on the rear surface of the rotation main body 430, and a pair of vertical plates 530 vertically installed on both sides of the rotation fixing plate 510, While connecting and integrating the pair of vertical plates 530, a pair of horizontal guides 520 hinged to the pivot fixing plate 510 and installed on the vertical plate 530 to adjust the angle of the pivot fixing plate 510 Triple movement drilling machine for forming a free surface, characterized in that consisting of an adjusting jack 540 for adjusting. A method of forming a free surface for excavation in rock mass using the triple-movement drilling machine according to any one of claims 1, 4 to 6, 8, 9, 11, and 13 to 16 As,
In a state in which the support frame 110 of the perforation frame 100 is tightly fixed to the surface of the rock mass, three drilling holes are formed so as to mutually overlap with the perforation body 300, and the fixed state of the perforation frame body 100 to the rock mass In a state of being maintained as it is, the moving cart 200 is moved in one direction along the moving guide rod 120 installed on the support frame 110 to form another three mutually overlapping drilling holes to overlap with the previously formed drilling holes A free surface construction method for rock mass, characterized in that by repeating the operation to form a free surface for excavation in the rock mass.

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