JPH0886186A - Rock drilling device - Google Patents

Abstract

PURPOSE: To drill many holes at the bottom of a vertical hole by installing a drilling device having a drifter elevated along a holder which is supported on a rotary table and horizontally turned in the center of the vertical hole. CONSTITUTION: A frame main body 4 of a vertical hole drilling device 2 is installed substantially in the center of a vertical hole 1 and controlled to be horizontal. An expansion arm 5 is elongated, and the tip of a support arm 9 is brought into contact with a liner plate 10 of the periphery of the vertical hole and fixed. Subsequently, after the inclination angle and height of a holder 18 and a guide cell 21 are adjusted, a boom 15 is moved in the horizontal direction by a boom retreating motor 16 to shift a drifter 24 to a drilling position, and compressed air is supplied to drill the bottom of the vertical hole 1 by striking and rotation of a bit 26. Further, a feeding motor 27 is driven to descend the drifter 24, thereby drilling to a designated depth. After the completion of drilling to a predetermined depth, the feeding motor 27 is reversed to lift up the drifter 24, a rotary table 12 is rotated to move the boom 15, and the bit 26 is moved to the next drilling position to perform drilling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rock drilling device for drilling a large number of holes in rock.

[0002]

2. Description of the Related Art Conventionally, as a device for boring a rock, a boring for boring a hole for vertically digging a vertical hole to construct a starting or reaching vertical hole for a vertical shaft or a shield that forms the foundation of a steel tower, for example. There is a device and a rock drilling device for a horizontal hole for boring a rock in a horizontal direction to drill a tunnel, for example.

In a rock drilling device for vertical holes, a mount, a swivel mounted on the mount, a boom that moves laterally on the swivel, and a guide cell tiltably connected to the boom. And a drifter that moves up and down along the guide cell,
The tips of a pair of arms extending laterally from the gantry are fixed to the opposing hole wall portions with bolts, based on rotation of the swivel base, lateral movement of the boom, and adjustment of the tilt angle of the guide cell.
It is known to drill a large number of holes at a predetermined position on the bottom of a vertical hole with a drifter.

On the other hand, in the rock drilling device for a horizontal hole, a boom, a guide cell, and a lifter, which are similar to those of the rock drilling device for a vertical hole, are horizontally extended from the vehicle, and the rod is driven by a predetermined movement by driving the boom. In general, the rod is drilled by moving it to a position and driving and driving the drifter to give the rod a rotating and striking action.

[0005]

However, in the above-described drilling device, when drilling continuously, the rod drilling direction is not necessarily straight with respect to the rock mass, and there is a problem that the rod is laterally displaced. That is, when a new hole is drilled adjacent to a hole that has already been drilled, a part of the newly drilled hole is in communication with the existing hole, so that the force acting on the rod is Because it will be uneven. For this reason,
In particular, it was difficult to keep both holes in a communicating state when drilling between the holes.

Further, in the rock drilling device for vertical holes, in order to stably support the two arms on the hole wall, the tips of these arms are fixed to the hole wall by bolts, so that it takes time to install. In addition, there is a problem that it takes a lot of time for centering and poor drilling efficiency. In addition, there is a problem that the arm interferes and vertical drilling cannot be performed directly under the arm. Therefore, an object of the present invention is to provide a rock drilling device capable of efficiently drilling rock in order to solve the above problems.

[0007]

In order to achieve the above-mentioned object, the present invention provides a device which is placed in a vertical hole and drills a rock at the bottom, and which is provided with a gantry main body and a radiating device extending horizontally from the gantry main body. At least three telescopic arms extending at equal intervals, adjusting means for adjusting the height of each telescopic arm, a revolving table supported by the gantry body and revolving along a horizontal plane, and supported by the revolving table. A boom that moves in the horizontal direction, a holder that is supported by the boom and rotates along a vertical plane, a guide cell that moves up and down along the holder, and a drilling lifter that moves up and down along the guide cell. It is composed of and.

The rock drilling device having the above structure is arranged in a vertical hole dug to a predetermined depth. At this time, the gantry body is located substantially at the center of the vertical hole and is horizontally set by the adjusting means. Further, the gantry body is fixed by extending the telescopic arm and abutting the tip end thereof against the wall of the vertical hole. For rock drilling at the bottom of the vertical hole, the swivel table is rotated, the boom is extended, the inclination angle of the holder is adjusted, and the guide cell and the drifter are arranged at the drilling position. Next, the lower end of the guide cell is seated on the rock, and the drifter is driven to make a hole. When the hole is drilled to a predetermined depth, the guide cell and the drifter are retracted and moved to the next hole drilling position.

As described above, the gantry body has at least three units.
Since it is fixed in the vertical hole by the telescopic arms of the book, it can be easily installed and aligned by adjusting the telescopic amount of the telescopic arms.

It is preferable that the telescopic arm is provided with a pair of arms which extend and contract from both sides in the radial direction.

According to this, the space of the guide cell that moves along the inner peripheral surface of the vertical hole can be secured by switching the support arm that contacts the wall of the vertical hole. Therefore, the guide cell can be erected vertically also at the tip of the telescopic arm, and holes can be drilled in the vertical direction.

An arm that rotates along a plane orthogonal to an extension line of the guide cell and a fitting rod that is supported by the arm and is movable in a direction parallel to the guide cell are provided below the guide cell. Is preferred.

According to this, by inserting the insertion rod into the existing hole, the hole can be surely drilled between the holes while preventing lateral movement of the guide cell.

In the rock drilling device, the turning angle detecting means of the turning table, the boom position detecting means, the inclination angle detecting means of the holder, the ascending / descending amount detecting means of the guide cell, and the feed amount detecting means of the drifter. It is preferable that the rotary table, the boom, the holder, the guide cell, and the drifter are automatically controlled in accordance with the programmed drilling mode based on the output signals from these detecting means.

In this rock drilling device, the turning angle of the turning table, the position of the boom, the tilting angle of the holder, the lift amount of the guide cell, and the feed amount of the drifter are respectively detected by the respective detecting means, and programmed hole drilling. Since the operations of the swivel table, boom, holder, guide cell and drifter are automatically controlled according to the pattern, it is possible to perform unmanned drilling of a predetermined pattern.

Further, in order to achieve the above object, the present invention provides:
A device for boring a lateral hole is provided with a vehicle main body, a boom extending horizontally from the vehicle main body, the boom rotating vertically and horizontally, a turning shaft attached to the boom and turning, and a device parallel to the turning shaft. An integrated guide cell, a drilling drifter placed on the guide cell for rotating and striking the rod, and the guide cell to rotate in a plane orthogonal to the axial direction thereof. And an insertion rod which is fixed to the arm and which is inserted into the hole before the hole is drilled so that the hole drilling position of the rod can be set to a predetermined pitch.

According to this, by inserting the insertion rod into the existing hole in a state where the tip end of the hole forming drifter is opposed to the rock, the hole forming drifter can be reliably inserted into the hole at a predetermined pitch. Can be positioned. When the rock drill is drilled by driving the drilling drifter, the fitting rod is guided into the hole, so that the rod can be drilled reliably without lateral displacement.
Therefore, it is possible to surely drill holes even between the holes.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view of a vertical hole 1 and a rock drilling device for vertical holes according to the present invention (hereinafter referred to as “vertical hole drilling device”) 2 arranged in the vertical hole 1 as viewed from above, and FIG. FIG. 3 is a partially enlarged view of the drilling device 2, and FIG. 3 is a side view of the drilling device 2.

In the vertical hole drilling device 2, the pedestal 3 that supports the whole is provided with three telescopic arms 5 that extend radially from the main body 4 in the horizontal direction at equal intervals.
The telescopic arm 5 includes a cylindrical fixed arm 6 whose one end is fixed to the gantry body 4 and whose tip is open, and a movable arm 7 which is inserted into the fixed arm 6 from its open end.
The amount of advancement of the movable arm 7 can be adjusted by a hydraulic arm expansion / contraction cylinder 8 arranged inside the fixed arm 6.

A support arm 9 extending in the advancing / retreating direction is detachably connected to the end of the movable arm 7.
The support arm 9 is driven based on the driving of the arm extension cylinder 8.
The tip (free end) of the above can contact the inner wall of the vertical hole 1 formed of the liner plate 10, for example. In addition, a hydraulic jack cylinder 11 or a screw jack base is provided on the protruding portion of the movable arm 7 so that the heights of the telescopic arm 5 and the gantry 3 can be adjusted. The supporting arm 9 is selected to have an appropriate length according to the diameter of the vertical hole 1, and a long supporting arm is used for the large diameter vertical hole and a short supporting arm is used for the small diameter vertical hole.

A swivel table 12 having a rectangular table structure is installed in the gantry body 3 via a rotary connection mechanism such as a swivel joint. The turning table 12 turns based on the drive of the turning hydraulic motor 13, and the turning angle from a predetermined position—that is, a reference line extending in the radial direction from the turning center—is detected by the turning angle detection encoder 14. It has become. Further, the turning table 12 is provided with a boom 15 that moves laterally, and the boom 15 is driven based on the drive of the turning hydraulic motor 16.
Moves, and the moving position is the boom position encoder 17
Is to be detected. A holder 18 is connected to the tip of the boom 15 so as to be rotatable along a vertical plane. On the other hand, in order to adjust the inclination angle of the holder 18, a plunger of a hydraulic angle adjustment cylinder 19 provided on the boom 15 is connected to the holder 18. Also, the holder 1
A goniometer 20 for detecting the inclination angle of 8 is provided in the holder 18.

The guide cell 21 is held by the holder 18, and the plunger of the hydraulic guide cell lifting cylinder 22 fixed to the holder 18 is connected to the guide cell 21. Based on the operation of the cylinder 22, the guide cell 21 is guided.
Is designed to move up and down. The guide cell raising / lowering cylinder 22 has a built-in device for detecting the amount of movement of the guide cell 21, so that the position relative to the holder 18 can be detected. At the lower end of the guide cell 21, a centralizer 23 is provided for positioning the lower end of the guide cell 21 on rock. Further, the guide cell 21 is provided with a lifter 24 so as to be movable up and down, and based on the driving of a hydraulic feed motor 27, the lifter 24 is moved up and down along the guide cell 21.
From the rotation of 7, the position of the drifter 24 can be detected by the feed amount detecting encoder 28. further,
The rod 2 of the drifter 24 by the centralizer 23
5 and the bit 26 can be held in a predetermined direction.

The operation of the vertical boring device 2 having the above structure will be briefly described. The vertical hole drilling device 2 is a vertical hole 1 which has been dug to a predetermined depth and around which a liner plate 10 is arranged.
Inside, it is installed by being suspended by a crane (not shown). At this time, the gantry body 4 is arranged substantially at the center of the vertical hole 1, and the gantry body 4 is horizontally adjusted by the jack cylinder 11. Further, the arm extending / contracting cylinders 8 are driven to extend the respective extending / contracting arms 5, and the tips of the supporting arms 9 are brought into contact with and fixed to the surrounding liner plate 10. next,
The holder 18 and the guide cell 2 are mounted by the angle adjusting cylinder 19.
After adjusting the tilt angle of No. 1 and adjusting the height of the guide cell 21 by the guide cell lifting cylinder 22, the boom advancing / retreating motor 16 is driven to move the boom 15 in the horizontal direction to drill the driller 24. Move to position. When entering the hole, compressed air is supplied to the drifter 24, and the bit 26
The bottom and bottom of the vertical hole (drilling surface) is drilled by the impact and rotation of.
Further, the drive of the feed motor 27 drives the drifter 24.
And then drilled down to a predetermined depth. The dust generated during the drilling is collected by the dust collector 32 and discharged outside the mine. When the drilling to the planned depth is completed, the feed motor 27 is rotated in the reverse direction to raise the lifter 24, and the bit 26 moves to the next drilling position based on the rotation of the revolving table 12, the movement of the boom 15, and the like. To do. Then, similarly, another hole is drilled.

The control of the vertical boring device 2 will be described in detail. FIG. 4 shows a circuit diagram of an electric control system and a hydraulic control system for automatically controlling drilling, and the electric control unit 30 is connected to a control computer 31. This control computer 31 has a built-in program for automatic drilling control corresponding to a plurality of drilling patterns, and by inputting various data such as drilling depth and diameter of deep foundation to the selected program. The necessary signals are output to the electric control unit as appropriate. The electric control unit 30 includes the above-described turning angle detection encoder 14 and boom position detection encoder 1.
7, goniometer 20, and feed amount detection encoder 28
The signals from are input respectively.

The hydraulic relay unit 33 includes a hydraulic unit and various hydraulic drive devices, that is, an arm extension cylinder 8, a turning motor 13, a jack cylinder 11, a boom advancing / retreating motor 16, an angle adjusting cylinder 19, and a guide cell. It relays hydraulic pipes to the lifting cylinder 22 and the feed motor 27, and has a built-in switching valve corresponding to each hydraulic drive device. These switching valves are based on a signal from the electric control unit 30. It is designed to be switched. It should be noted that the arm extension cylinder 8 for aligning the pedestal 3 and the jack cylinder 11 are connected to the piping connecting the relay unit 33 with a manual switching valve 35, respectively.
36 is provided, and when setting the boring device 2 in the vertical hole 1, the switching valves 35 and 36 can be operated to perform centering.

The compressed air relay unit 37 relays the compressed air piping between the compressor 38, which is a compressed air supply source, and the drifter 24, and the compressed air is supplied to the drifter 24 based on a signal from the electric control unit 30. It is done.

The dust collector 32 is connected to the electric control unit 30, and based on a signal from this unit 30,
It is designed to drive in synchronization with drilling.

The control computer 31, the hydraulic unit 34 and the compressor 38 are installed outside the mine, and the electric control unit 30 and the relay units 33 and 37 are used for the drilling device 2.
To be installed on.

A specific automatic drilling control will be described with reference to the flowchart of FIG. When the vertical boring device 2 is set in the vertical hole 1, the boring pattern data is input to the computer 31. The drilling patterns include the method of crushing the drilled rock mass-that is, the split rock method (the method of hammering the rock mass after drilling with a hammer), the honeycomb method (the method of drilling the rock mass without gaps), and the static method. There are three types according to the specific crushing agent construction method (a method of filling a static crushing agent into a drilled hole and crushing surrounding rock by its expansive force). Then, for example, when the diameter of the vertical hole is input to the computer 31 as the drilling pattern data, the computer 31
Automatically calculates the drilling pitch (drilling position), the drilling depth (drilling length) and the tilt angle of the guide cell corresponding to each drilling position according to the selected drilling pattern, The calculation result is stored in a memory (not shown).

Next, when an automatic start signal is input from the computer 31 or an automatic start button (not shown) of the electric control unit 30 is turned on and the computer 31 selects a drilling pattern, the computer 31 is selected. Reads the drilling position data stored in the memory. Also, the current position data of the boom 15 is read. For example, the boring device 2
When the is set in the vertical hole 1, the boom 15 is set to the retracted position (reference position), the turning table 12 is set to a predetermined reference position with respect to the gantry 3, and the electric control unit 30 is set from this reference position. When activated, the amount of movement from these reference positions is obtained as current position data.

Then, the turning hydraulic motor 13 is driven to rotate the turning table 12, and the boom advancing / retreating hydraulic motor 16 is driven to move the boom 15 and the guide cell 21. When it is confirmed that the boom 15 is set at a predetermined position, the drilling length data and the guide cell tilt angle are read from the memory into the computer 31, and the angle adjusting cylinder is corrected while correcting based on the signal from the angle meter 20. 19
The inclination angle of the guide cell 21 is set by, and the guide cell 21 is lowered by the guide cell elevating cylinder 22 to rock the centralizer 23 at the drilling position.

After that, a signal is sent from the electric control unit 30 to the relay unit 37, compressed air is supplied from the compressor 38 to the drifter 24, and the rock 25 is struck while drilling the rock while rotating the rod 25. Further, a signal is sent from the electric control unit 30 to the relay unit 33 to drive the feed hydraulic motor 27 to lower the drifter 24 and deepen the drilling depth. During drilling, electric power is supplied to the dust collector 32 based on a signal from the electric control unit 30, and dust generated during drilling is sucked and collected.

When the drilling depth reaches the target depth, the electric control unit 30 stops the feed motor 27, reverses it, and raises (retracts) the drifter 24. Further, the electric control unit 30 drives the guide cell elevating cylinder 22 to retract (raise) the guide cell 21. The amount of rise of the guide cell 21 is detected by a device built in the cylinder 22.

When one drilling is completed as described above, the boom 15 and the like are moved again and the above drilling operation is repeated. When all the holes have been drilled, the boom 15 is retracted to the standby position (reference position) to finish the work, and the telescopic boom 1
5 is contracted and the vertical hole drilling device 2 is pulled up from the vertical hole 1. If the split rock method is adopted, the rock surface is crushed by hitting the drilled surface with a drop hammer. When the honeycomb method is used, the rock bed is drilled without any gaps, so there is no need to crush it. When the static crushing agent method is adopted, the holes are filled with a crushing agent, and the expansion pressure of the holes crushes the bedrock between the holes. Also, the crushed scraps are taken out with a clam shell or the like.

FIG. 6 shows an improved example of the telescopic arm 5. This telescopic arm 5 is provided with cylinders 40, 40 on both sides of the tip of the support arm 9, and the piston rods 41 of each cylinder 40 can independently come into contact with the surrounding liner plate 10. . Therefore, when drilling a hole right below the tip of the telescopic arm 5 in the vertical direction, the guide cell 21 is provided between the tip of the telescopic arm 5 and the liner plate 10 by appropriately switching the cylinder rod contacting the liner plate 10. It secures a space for moving and can make holes in the vertical direction.

FIG. 7 shows another modification of the telescopic arm 5.
The telescopic arm 5 is provided with a hydraulic motor 42 at its tip and an L-shaped support 43 is provided on its rotation shaft. Even in this case, the guide cell 2 is attached to the tip of the telescopic arm 5 by the forward / backward movement of the support arm 9 and the rotation of the support 43.
1 space is secured and vertical drilling is possible.

8 and 9 show an improved example of the guide cell 21. The guide cell 21 is located near the lower part.
An arm 46 that rotates about an axis 45 that is parallel to is provided. A hydraulic cylinder 47 provided in the guide cell 21 is connected to one end of the arm 46.
The arm 46 is moved between the solid line position and the chain line position based on the driving of 7. Also, the arm 46 has a cylinder 48 and a fitting rod 4 connected to its piston rod.
9 are provided. When continuously drilling around the vertical hole 1, first, after drilling at regular intervals, the fitting rod 49 is inserted into the existing hole to position the guide cell 21, and the guide cell 21 is positioned between the holes. Drilling the rock bed of. Therefore, FIG.
As shown in 0, even if the distance between the holes is narrow, the lateral movement of the bit 26 is prevented, and the rock mass between the holes can be reliably crushed.

11 and 12 show an automatic bit exchange device 50. The bit exchanging device 50 is provided on the upper part of the telescopic arm 5, and the bit chucking sleeve 51 is provided so as to penetrate the upper part of the bit storage case 58. The sleeve 51 is provided with a bit chucking device 52, which chucks and fixes the bit 26 inserted into the sleeve 51 from above. Further, a through hole 53 is provided in the sleeve 51 from the side, and a rod 55 of a breaker 54 provided so as to be movable in the bit chucking direction is movable back and forth. An exchange bit mounting portion 56 is provided on a side portion of the sleeve 51. It is preferable that an elastic member such as rubber is arranged in the bit holding portion of the mounting portion 56 so that the replacement bit does not fall off during the work.

When exchanging bits with the automatic bit exchanging device 50, the boom 15 is moved to insert the bit 26 fixed to the drifter rod 25 into the sleeve 51. Next, the bit 26 is fixed by the chucking device 52, the breaker 54 is moved, and the side of the bit 26 is hit with the rod 55. Also, rotate the drifter rod 25,
The bit 26 screw-fitted to this is separated. Next, the chucking device 52 is loosened to open the bit 26. The opened bit 26 falls inside the bit storage case 58, and the window 57 is opened if necessary to be taken out. Next, the drifter rod 25 is moved onto the exchange bit 26a, the drifter rod 25 is rotated in the opposite direction, and the bit 26a is fitted and attached to the tip screw portion thereof.

FIG. 13 shows the automatic drifter rod changing device 60.
Indicates. The exchange device 60 includes a first arm 61 that projects laterally from the guide cell 21. A second arm 62 is rotatably connected to the first arm 61 via an axis parallel to the guide cell 21. Second arm 62
Is connected to a hydraulic cylinder 63 provided on the first arm 61, and the rotation of the second arm 62 is controlled by the hydraulic cylinder 63. A motor 64 is fixed to the tip of the second arm 62, and the center of the third arm 65 is connected to the rotation shaft of the motor 64. Grooves 66 for mounting the exchange rods are formed on both ends of the third arm 65, respectively.

When the rod 25 is replaced by the replacement device 60, the motor 64 and the cylinder 63 are driven to drive the third arm 6
The groove 25 of 5 holds the rod 25 in use. next,
The motor 64 rotates the third arm 65, and the other groove 66
After the replacement rod 25a held by the above is mounted on the drifter 24, the cylinder 63 is driven to retract to the standby position shown in the figure.

14 and 15 show a rock drilling device 70 for a horizontal hole (hereinafter referred to as a "horizontal hole drilling device"). The horizontal hole drilling device 70 includes a vehicle main body 71 that travels by driving an engine (not shown), a boom 72 that horizontally projects from the vehicle main body 71, a turning shaft 73 attached to the boom 72, and a turning shaft 73. A guide cell 74 provided on the shaft 73, a drilling lifter 75 mounted on the guide cell 74, and a fitting rod 76 pivotably provided on the guide cell 74 are provided.

The vehicle body 71 is positioned by the outrigger 77 with respect to the ground. The boom 72 is rotated vertically and horizontally by driving the cylinders 78 and 79. The swivel shaft 73 swivels within a predetermined angle (here, 300 degrees) by driving a cylinder or the like (not shown). The guide cell 74 has the same structure as that shown in FIGS. 8 and 9, and is provided so as to be rotatable on the pivot shaft 72 via the holding portion 80, as shown in FIG. The hole drilling lifter 75 applies a rotating and striking action to the rod 82 through the joint sleeve 81, and drills the rock mass with the bit 83 provided at the tip of the rod 82. The rod 82 is supported by the guide cells 74 by the centerizers 84 and 85, so that the rod 82 is prevented from swinging or bending during drilling. As shown in FIG. 16, the fitting rod 76 is attached to the tip of a second arm 87 that is provided on the first arm 86 extending from the guide cell 74 so as to be rotatable around a support shaft 86a. The second arm 87 is rotated by driving the cylinder 88 to rotate the first arm 86, and the interval between the fitting rod 76 and the rod 82 can be freely changed.

According to the horizontal hole drilling device 70 having the above-described structure, horizontal holes can be drilled in a vertical rock mass in the following manner.
That is, first, the vehicle body 71 is moved to a predetermined position, and the outrigger 77 positions the vehicle body 71 with respect to the ground. Then, by driving the cylinders 78 and 79 to rotate the boom 72, the bit 83 provided at the tip of the rod 82 faces the predetermined position of the rock (usually from the outer peripheral side of the lateral hole to be drilled). Since drilling is performed along the circumferential direction, first place it on the outer circumference of the lateral hole. Subsequently, compressed air is supplied to the drifter 75 to give the bit 83 a rotating and striking action to start drilling. When the holes have been drilled by a predetermined size, the drilling lifter 75 is driven to retract the rod 82 to the original position, and the boom 72 is driven to move to the next hole.
At this time, by driving the cylinder 88 and rotating the second arm 87 with respect to the first arm 86, the rod 8
2 and the fitting rod 76 have a predetermined pitch, and the fitting rod 76
The next drilling is carried out while fitting into the hole (in this case, the turning position of the second arm 87 is about twice the drilled hole diameter, as indicated by the solid line in FIG. 16).

If the holes can be drilled on the same circumference at a predetermined pitch in this way, the cylinder 88 is driven to drive the first arm 86.
By rotating the second arm 87 with respect to, the pitch between the rod 82 and the fitting rod 76 is changed (the rotation position of the second arm 87 in this case is as shown by the two-dot chain line in FIG. 16). And 1.5 times the initial pitch). Then, with the fitting rod 76 fitted in the existing hole, the bit 8
Drill the rock between the existing holes by 3. In this case, since the insertion rod 76 is guided by the existing holes as described above, the lateral displacement of the bit 83 is prevented even if the distance between the holes is narrow, and the rock mass between the holes is surely crushed. can do.

[Brief description of drawings]

FIG. 1 is a plan view of a rock drilling device for vertical holes according to the present invention.

FIG. 2 is a partial plan view of the rock drilling device for vertical holes shown in FIG.

FIG. 3 is a partial side view of the rock drilling device for vertical holes shown in FIG. 1.

FIG. 4 is a circuit diagram of an electric system and a hydraulic system of the rock drilling device.

FIG. 5 is a flowchart for automatically controlling a rock drilling device.

FIG. 6 is a partial plan view showing an improved example of a telescopic arm.

FIG. 7 is a partial plan view showing another modified example of the telescopic arm.

FIG. 8 is a diagram showing an improved example of a guide cell.

FIG. 9 is a diagram showing an improved example of the guide cell together with FIG. 8.

FIG. 10 is a view showing an improved example of the guide cell together with FIGS.

FIG. 11 is a sectional view of the automatic bit exchanging device.

12 is a plan view of the automatic bit exchanging device shown in FIG. 11. FIG.

FIG. 13 is a plan view of the automatic rod changing device.

FIG. 14 is a front view of a rock drilling device for a horizontal hole according to the present invention.

FIG. 15 is a plan view of FIG.

16 is a partially enlarged side view showing the vicinity of the guide cell of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vertical hole, 2 ... Rock drilling device, 3 ... Stand, 4 ... Stand body, 5 ... Telescopic arm, 11 ... Jack cylinder, 12
... Swivel table, 13 ... Swivel motor, 14 ... Swivel angle detection encoder, 15 ... Boom, 16 ... Boom advance / retreat meter, 17 ... Boom position detection encoder, 18 ... Holder, 19 ... Angle adjustment cylinder, 20 ... Angle Total 21 ...
Guide cell, 22 ... Guide cell lifting cylinder, 24 ...
Drifter, 25 ... Drifter rod, 26 ... Bit, 27
... feed motor, 28 ... feed amount detection encoder, 30 ... electric control unit, 31 ... computer, 3
2 ... Dust collector, 33 ... Relay unit (hydraulic), 34 ... Hydraulic unit, 37 ... Relay unit (compressed air), 38 ... Compressor.

Claims (5)

[Claims] 1. A device which is arranged in a vertical hole and drills a rock at the bottom, comprises a gantry body, and at least three telescopic arms extending radially from the gantry body at equal intervals in a horizontal direction. Adjusting means for adjusting the height of the telescopic arm, a swing table which is supported by the gantry body and swivels along a horizontal plane, a boom which is supported by the swivel table and moves horizontally, and a boom which is supported by the boom. A rock mass for vertical holes, comprising: a holder that is rotated along a vertical plane, a guide cell that moves up and down along the holder, and a drilling lifter that moves up and down along the guide cell. Drilling device. 2. The rock drilling device for vertical holes according to claim 1, wherein the telescopic arm is provided with a pair of arms that expand and contract in the radial direction from both sides thereof. 3. An arm that rotates along a plane orthogonal to an extension line of the guide cell, below the guide cell, and a fitting rod supported by the arm and movable in a direction parallel to the guide cell. 3. The method according to claim 1 or 2, further comprising:
The rock drilling device for vertical holes according to any one of 1. 4. A turning angle detecting means of the turning table, a boom position detecting means, an inclination angle detecting means of the holder, a lift amount detecting means of the guide cell, and a feed amount detecting means of the drifter. A control means for operating the revolving table, the boom, the holder, the guide cell, and the drifter according to a programmed drilling pattern based on an output signal from the detecting means. The rock drilling device for vertical holes according to 1. 5. A vehicle body, a device for horizontally drilling a lateral hole, a boom extending horizontally from the vehicle body, the boom rotating vertically and horizontally, and a pivot shaft attached to the boom and pivoting. A guide cell that is integrated in parallel with the swivel axis, a drilling drifter that is mounted on the guide cell and that applies a rotating and striking action to the rod, and an in-plane orthogonal to the axial direction of the guide cell. And an insertion rod fixed to the arm and capable of being inserted into the hole before drilling to set the drilling position of the rod at a predetermined pitch. A rock drilling device for horizontal holes.