JPH0842278A - Boring machine - Google Patents

Abstract

PURPOSE:To make it possible to execute boring work efficiently in baserock or boulder stone even in a narrow place such as the bottom of a footing hole of a leg section of a steel tower and to provide a sufficient boring machine for a measure to dust proofing. CONSTITUTION:A boring machine A is equipped with a base 2, and a jack column 22 incorporating a jack device into it is erected on the front end of an overhanging frame 21 of the base 2. The base 2 is provided with a movable support 34 capable of turning and oscillating, and a boring maching main body 1 is mounted to the front end thereof. A lower base 12 having a centralizer 121 is provided in the lower part of a basic body 11 of the boring machine main body 1. An air suction pipe 126 for sucking dust coming out from the inside is connected to the lower base 12. A moving body 13 is mounted to the basic body 11 in a slidable manner, and a hydraulic cylinder moving the moving body 13 is provided to the inside of the basic body 11. A boring unit 18 is mounted to the moving body 13 in a slidable manner. An opening and closing plate is provided in the boring unit 18, and the opening and closing plate is equipped with a loading section 186 loaded with a boring rod 5 and an impact device 187. Sprockets 190 and 191 are mounted to the up and down ends of the moving body 13. Driving chains C1 and C2 are wrapped on the sprockets 190 and 191, and both ends are mounted to a chain mounting section 117 and the boring unit 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling machine for lowering and boring a rock or a rock when hitting a foot foundation hole of a steel tower for constructing a high-voltage line.

[0002]

2. Description of the Related Art A deep hole is drilled for each leg at the foundation of a steel tower on which a high-voltage line is installed. This deep hole is 10m deep
In some cases, it may hit rocks or boulders. In such a case, conventionally, an operator who got down to the bottom of a hole made a hole in a rock or boulder with a hand-held punch, and blasted (dynamite) the hole to crush the rock to remove it.

[0003]

However, the work by the above-mentioned hand-held punching machine has the following problems. That is, the above work is heavy labor because the punch is heavy. In addition, especially in a narrow place such as the bottom of a hole, dust-proofing measures cannot be sufficiently performed, and the operator is physically burdened. Further, since work is performed by a small number of people in a narrow place, efficient work cannot be expected.

[0004]

The object of the present invention is to solve the above problems.
For example, it is an object of the present invention to provide a drilling machine capable of efficiently drilling rocks or boulders in a narrow space such as the bottom of a foot foundation hole of a steel tower and having sufficient dust-proof measures.

[0005]

[Means for Achieving the Object] The means of the present invention for achieving the above object are as follows. The first means is a perforator, which comprises a base provided with height adjusting means, a perforator main body provided on the base, and at least perforation of the perforator main body. An adjusting unit capable of adjusting a position and a drilling direction, and the punching machine body,
A base body, a moving body mounted movably in the length direction along the base body, and a drilling unit having a mounting portion movably mounted in the length direction along the moving body and having a removable drilling rod A perforating machine including: a driving unit that moves the moving body along the base body; and an interlocking unit that interlocks the perforating unit with the moving unit and moves in the same direction as the moving direction of the moving unit.

In the second means, the punching unit is
It is a drilling machine according to a first means, which is provided with a moving means for shifting the position from the axis of the drilling rod when mounted on the mounting portion.

In the third means, a dust collecting means for collecting the dust generated in the perforated portion is provided.
Alternatively, the punching machine according to the second means.

[0008]

For example, when a hole for floor digging hits a bedrock, the boring machine according to the present invention is lowered to the bottom of the hole by using a crane, and the height adjusting means is adjusted to stabilize the base. The position and direction of the boring machine body are adjusted by the adjusting means, and the moving body is moved to the upper side of the base body by the driving means. Next, the drilling rod is attached to the drilling unit. When the moving body is moved to the front side of the base by the driving means while operating the punching unit with air or the like, at the same time, the interlocking means moves the punching unit along the moving body in the same direction as the moving body. This causes the piercing rod to pierce the rock.

When the drilling unit is provided with a moving means for shifting the position of the drilling rod from the axis of the drilling unit when it is mounted on the mounting portion, the drilling unit does not interfere when replacing the drilling rod. Therefore, for example, when the perforated rod is gradually replaced with a long one, the replacement can be performed easily and quickly.

That is, when substantially the entire length of the first piercing rod is pierced, the moving body and the piercing unit are moved to the upper side of the base by the driving means to pull out the piercing rod from the hole. Then, when the drilling depth is further increased, the drilling rod is removed from the mounting portion of the drilling unit, and the drilling unit is displaced by the moving means from the axial line when the drilling rod is mounted so as not to be an obstacle.

Next, the first piercing rod is removed from the piercing machine body, and instead, the second piercing rod, which is longer than the first piercing rod, is inserted along the piercing machine body into the drilled hole.
When the tip of the second piercing rod is inserted deep into the hole, the piercing unit is returned to its original state, the piercing rod is pulled back slightly, the base is attached to the mounting portion, and piercing is performed by the same operation as above. When drilling is complete, lift the drilling machine and remove it from the hole. Then, the worker sets a blast in the drilled hole and blows it up to crush the rock into fine pieces.

[0012] With the dust collecting means for collecting the dust generated in the perforation portion, the dust is unlikely to scatter around during the work, so the operator need not take dust countermeasures such as a dust mask during the perforation work. Not particularly. Therefore,
The working environment is improved and efficient work can be performed.

[0013]

The present invention will be described in more detail based on the embodiments shown in the drawings. 1 is a perspective view showing an embodiment of a punching machine according to the present invention, FIG. 2 is a perspective view showing the structure of a base, and FIG.
Is a perspective view of the punching machine main body, FIG. 4 is a perspective view of a main part showing a state in which the punching unit is rotated, and FIG. 5 is a cross-sectional view of the punching machine main body.

Please refer to FIG. 1 and FIG. Reference numeral A is a perforator, which is provided with a perforator body 1, a base 2, and a perforation adjusting device 3 as an adjusting means. The base 2 is provided with an overhanging frame 21 provided so as to intersect in a cross shape. .. are provided upright at four points at the tip of the projecting frame 21. At the inner lower part of the jack columns 22, 22, ..., Hydraulic jack devices 23, 23 ..
(Shown in FIG. 2). That is, the base 2 has an outrigger configuration.

A rectangular substrate 24 is fixed at the intersection of the projecting frame 21 of the base 2. A perforation adjusting device 3 is attached to the substrate 24. The perforation adjusting device 3 includes a movable plate 31.
It has. The movable plate 31 is rotatably attached to the substrate 24 via a turning device 30 configured by a known means such as a hydraulic motor and a gear device. The swivel device 30 is equipped with a swivel joint 35 (shown in FIG. 2),
The oil line can be connected to each part through the turning part.

A base frame 311 is provided upright at the end of the upper surface of the movable plate 31. The base frame 311 is provided with an operation panel 312 for operating the swivel device 30 and each hydraulic cylinder described later. Moreover, the support bases 32 and 33 are provided side by side. A movable column 34 is swingably attached to the support base 32 via an axial rod 321. The movable strut 34 has a front end that is telescopic and can be expanded and contracted stepwise.

A hydraulic cylinder S1 is swingably attached to the support base 33 via a shaft rod 331. The rod head of the hydraulic cylinder S1 is attached via a shaft rod 342 to a bracket 341 provided near the tip of the movable column 34. A bracket 111 provided at an intermediate portion of a rear portion of a base body 11 of a punching machine body 1 described later is swingably attached to a tip end portion of the movable support column 34 via a shaft rod 112. A bracket 113 is provided just below the bracket 111.

A bracket 343 is provided at an intermediate portion of the surface of the movable column 34 opposite to the bracket 341. A hydraulic cylinder S2 is swingably attached to the bracket 343 via an axial rod 344. And
The rod head of the hydraulic cylinder S2 is the above bracket 1
It is attached to 13 via a shaft rod 114. According to the above structure, the turning device 3 and the hydraulic cylinders S1 and S2
Can be adjusted to adjust the grounding position of the punching portion of the punching machine body 1 and the angle of the punching machine body 1 described later.

Please refer to FIG. 3 through FIG. 5 together. The punching machine body 1 has a base body 11 having a U-shaped cross section and having a required length. As described above, the bracket 1 is attached to the rear plate of the base 11.
11 is provided. At the lower part of the base body 11, a lower table 12 which constitutes a dust collecting means is provided so as to project forward.
At the front part of the lower base 12, there is provided a centrizer 121 having a rod hole 122 for passing the drilling rod 5.
The part of the centrizer 121 that forms the rod hole 122 is separated, and has an opening / closing body 123. The opening / closing body 123 is attached so as to be rotatable around one side, and can be fixed by a stopper 124.

The lower pedestal 12 is a hollow body having an open lower portion, and an air introduction pipe 125 communicating with the hollow portion is connected to the front portion of the lower portion. The air introducing pipe 125 has a striking device 187 described later
An air pipe P2 communicating with the air exhaust pipe 189 of is connected. Further, an air suction pipe 126 (shown in FIG. 1) communicating with the hollow portion is provided on the side portion of the lower base 12. The air suction pipe 126 is connected to an air pipe P3 that communicates with a dust collecting device (not shown) that constitutes dust collecting means. The dust collecting device has a structure in which water in a tank passes through exhaust gas containing dust to separate the dust into water and collect the dust.

On the rear side of the lower base 12 and inside the base body 11, a hydraulic cylinder S3 constituting a drive means is erected with the rod head facing upward. Hydraulic cylinder S
The rod head 3 is fixed to the upper part of the moving body 13 by an attachment rod 17 described later.

As shown in FIG. 5, holding strips 110, 110 are provided on the edge of the base 11 on the front open side over substantially the entire length. The movable body 13 is slidably attached to the base body 11 by engaging the holding strips 14, 14 provided on both sides with the holding strips 110, 110. The moving body 13 is in the shape of a rectangular cylinder and is formed to have a length about half that of the base 11. An internal space 15 is formed inside the moving body 13.

Guide strips 16, 1 are provided on both sides of the front portion of the moving body 13.
6 is provided over almost the entire length. An attachment rod 17 is provided inside the internal space 15 of the moving body 13 and near the upper end of the moving body 13. The rod head of the hydraulic cylinder S3 is attached to the attachment rod 17 as described above. Further, a punching unit 18 is slidably attached to the guide strips 16, 16 of the moving body 13.

Referring to FIG. The punching unit 18 has a slider 181. Holding portions 182, 182 are provided on both side edge portions of the slider 181, and the slider 18
In FIG. 1, the holding portions 182, 182 are fitted to the guide strips 16, 16 and attached to the moving body 13. An opening 183 is provided at the center of the front surface of the slider 181. An opening / closing plate 185 constituting a moving means is swingably attached to one end edge of the opening 183 via hinges 184 and 184.

On the front surface of the opening / closing plate 184, a mounting portion 186 for mounting a piercing rod and a mounting portion 18 by air pressure.
6 is provided with a striking device 187 having a striking action and a rotating action in the axial direction. Since the hitting device 187 is a well-known one, a detailed description thereof will be omitted. Further, the striking device 187 is provided with an air introduction pipe 188 and an air discharge pipe 189. An air pipe P1 leading to the compressor is connected to the air introduction pipe 188. The air discharge pipe 189 is connected to the air pipe P2 communicating with the air introduction pipe 125 of the lower table 12 as described above.

Numerals 180 and 180 are open / close plates 185.
It is a stopper for closing and fixing. Further, in the present embodiment, the opening / closing plate 185 is swung to be displaced from the axis line when the perforation rod is mounted, but other structures such as sliding or planar rotation may be used. Further, at the middle portion in the length direction of the side plates 115, 115 of the base body 11, the mounting piece 1 bent substantially at a right angle to the punching unit 18 side.
16 is stuck. The tip of the mounting piece 116 is provided with a chain mounting portion 117 protruding to a position corresponding to a sprocket described later.

Sprockets 190 and 191 that form interlocking means with drive chains C1 and C2 are attached to the upper and lower ends of the moving body 13 on the moving surface side of the punching unit 18. The drive chains C1 and C2 are wound around the sprockets 190 and 191 (see FIG. 3). One end of the drive chain C1 is attached to the chain mounting portion 117, and after being wound around the sprocket 191, the other end is fixed to the lower portion of the slider 181 of the punching unit 18. The drive chain C2 has a slider 1 at one end.
After being fixed to the upper portion of 81 and wound on the sprocket 190, the other end is attached to the chain attaching portion 117.

According to this, when the moving body 13 on which the punching unit 18 is mounted moves up and down along the base 11, the punching unit 18 moves up and down along the moving body 13. Therefore,
When viewed relatively, the punching unit 18 itself
It can move longer than the moving body 13 as much as it goes up and down.

6 and 7 are schematic explanatory views showing the movement of the punching machine body. The operation of this embodiment will be described with reference to FIGS. For example, when a hole in the floor is hit on the bedrock, the boring machine A according to the present invention is lowered to the bottom of the hole using a crane, and the jack device 23 of the base 2 is adjusted to stabilize the base 2. The turning position and the drilling direction of the punching machine body 1 are adjusted by the turning device 30 and the hydraulic cylinders S1 and S2. Also,
The moving body 13 is moved to the upper side of the base body 11 by the hydraulic cylinder S3, and the punching unit 18 is moved up accordingly.
The piercing rod 5 is attached to the mounting portion 186 of. Note that the opening / closing body 123 of the centrizer 121 is opened to insert / remove the tip of the punched rod 5 into / from the rod hole 122.

When the moving body 13 is moved to the front side of the base body 11 by the hydraulic cylinder S3 while sending air to the punching unit 18 and operating the striking device 187, the punching unit 18 moves along the moving body 18 Move in the same direction as. As a result, the piercing rod 5 pierces the rock. Also, during the punching work, the air discharge pipe 1 of the striking device 187 is
The air discharged from 89 passes through the air pipe P2 and is introduced into the lower base 12 below the base 11. Then, the dust generated in the perforated portion does not scatter to the surroundings, is sucked through the air pipe P3 together with this air, and is sent to the dust collecting device.

When the boring operation is completed, the boring unit 18 is raised together with the moving body 13 and the boring rod 5 is pulled out from the hole. Then, the punching machine A is lifted again by the crane and put out of the hole. Blasting the drilled holes to explode the bedrock and crushing it into small pieces, then moving them out of the holes to proceed with the floor digging work.

When the drilling depth is not sufficient, the drilling rod 5 is removed from the mounting portion 186 of the drilling unit 18, the opening / closing plate 185 of the drilling unit 18 is opened, and the drilling rod 5 is displaced from the axis when the drilling rod 5 is mounted. Be out of the way. Then, a drilling rod (not shown) longer than the drilling rod 5 is inserted along the drilling machine body 1 into the drilled hole. At this time, since the mounting portion 186 that is normally overhanging is opened so as not to get in the way,
The long piercing rod can be smoothly inserted along the hole. Then, when the boring rod is inserted all the way into the hole, the opening / closing plate 185 is closed and returned to the original position, and the mounting part 186 is mounted and fixed. After that, perforation is performed by the same operation as above. It should be noted that the present invention is not limited to the illustrated embodiment,
Various modifications are possible within the scope of the claims.

[0033]

The present invention has the above structure and has the following effects. (A) According to the boring machine of the present invention, for example, in the construction of a deep hole provided in a leg foundation of a steel tower on which a high-voltage line is installed, when the hole hits rock or boulders, a crane or the like is used. Can be drilled down to the bottom of the hole. In this way, since the drilling work on rock and boulders can be almost mechanized,
It is possible to reduce the physical burden on the operator during the drilling work.

(B) When the piercing unit is provided with the moving means for shifting the position from the axis of the piercing rod when mounted on the mounting portion, the piercing unit does not get in the way when replacing the piercing rod. Therefore, for example, when the perforated rod is gradually replaced with a long one, the replacement can be performed easily and quickly.

(C) The dust recovery means for recovering the dust generated at the perforation portion does not easily scatter around during the work. Therefore, the operator needs to take measures against dust such as a mask during the perforation work. There is no particular. Therefore,
The working environment is improved and efficient work can be performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a punching machine according to the present invention.

FIG. 2 is a perspective view of a main part showing a structure of a base.

FIG. 3 is a perspective view of a punching machine body.

FIG. 4 is a perspective view of essential parts showing a state in which a mounting portion of the punching unit is rotated.

FIG. 5 is a cross-sectional view of the punching machine body.

FIG. 6 is a schematic explanatory view showing the movement of the punching machine body.

FIG. 7 is a schematic explanatory view showing the movement of the punching machine body.

[Explanation of symbols]

 A Punching machine 1 Punching machine main body 11 Base 12 Lower stand 122 Rod hole 121 Centrizer 125 Air introduction pipe 126 Air suction pipe 13 Moving body 18 Punching unit 181 Slider 183 Opening 185 Opening plate 186 Mounting part 187 Striking device 188 Air introduction pipe 189 Air discharge pipe 116 Mounting piece 117 Chain mounting part 190, 191 Sprocket S1, S2, S3 Hydraulic cylinders P1, P2, P3 Air pipes C1, C2 Drive chain 2 Base 21 Overhang frame 22 Jack post 23 Jack device 3 Perforation adjusting device 31 Movable plate 30 Swivel device 35 Swivel joint 34 Movable column

Claims (3)

[Claims] 1. A perforator, which comprises a base (2) having height adjusting means, a perforator body (1) provided on the base (2), and the perforator (1). An adjusting means capable of adjusting at least a drilling position and a drilling direction of the machine body (1), wherein the machine body (1) moves along the base body (11) and the base body (11) in the longitudinal direction. A movable body (13) that is movably attached, a piercing unit (18) that is movably attached to the movable body in the lengthwise direction and has a mounting portion to which a piercing rod is detachable, Drive means for moving (13) along the base (11), and interlocking for moving the perforation unit (18) with the moving body (13) in the same direction as the moving direction of the moving body (13). A means, including: a punching machine. 2. The punching machine according to claim 1, wherein the punching unit (18) is provided with a moving means for shifting the position of the punching rod from the axial line when the punching unit is mounted on the mounting portion. 3. The punching machine according to claim 1, further comprising a dust collecting means for collecting dust generated in the punching portion.