JP4158293B2 - Lock bolt supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lock bolt supply device that supplies a lock bolt to a driving machine.
[0002]
[Prior art]
In a mine such as a coal mine, a construction method is employed in which rock bolts are placed on the ceiling and side walls (the inner wall of the mine) after excavation to prevent the tunnel from collapsing. Conventionally, in order to drive the lock bolts, the lock bolts are manually set on the driving machine one by one and the lock bolts are driven.
[0003]
[Problems to be solved by the invention]
However, in this case, since the lock bolt is set manually every time, the efficiency is poor and it is difficult to increase the construction speed. Further, in the case of a coal mine, it is not preferable because a rock bolt setting work must always be performed with an operator attached to a place where the environment of pulverized coal is bad and safety is not perfect.
[0004]
[Means for Solving the Problems]
The present invention devised to solve the above problems is a lock bolt supply device for supplying a lock bolt to be placed on the inner wall of a tunnel to a driving machine, and a carriage disposed in the tunnel, and provided on the carriage A driving machine for driving the lock bolt on the inner wall of the mine shaft, a stock part provided behind the driving machine and stocked with the plurality of lock bolts, and a lock bolt for the stock part A transfer means provided on the carriage for transfer to a machine, the transfer means provided on the carriage for moving in the front-rear direction, and provided in the first mover for moving in the left-right direction. And a gripping portion that is provided on the second moving body and grips a lock bolt .
[0005]
According to the present invention, the required number of the plurality of lock bolts stocked in the stock section is taken out by the transfer means and sequentially supplied to the placing machine. Therefore, by storing a large amount of lock bolts in advance in the stock section, the operator can perform a lock bolt driving operation remotely or automatically from a safe place away from the driving site. Further, since it is not necessary for the operator to set the lock bolt every time, the work efficiency can be improved and the construction can be accelerated. Moreover, since a driving machine and a stock part are arrange | positioned back and forth along the longitudinal direction of a mine shaft, the expansion of a mine cross-sectional area is not caused.
[0006]
In the stock part, a plurality of long lock bolts and short lock bolts are stocked along the longitudinal direction of the mine shaft, and the second moving body corresponds to a long lock bolt and a short lock bolt. Each may be provided so as to be movable in the longitudinal direction of the mine shaft .
[0007]
A cassette body on which a plurality of the lock bolts are placed may be attached to the carriage in a replaceable manner .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
[0009]
A lock bolt supply device according to a first embodiment is shown in FIGS.
[0010]
As shown in FIGS. 1 and 3, the lock bolt supply device 1 has a carriage 2 arranged in a mine shaft such as a coal mine. In this embodiment, the carriage 2 has a pair of crawlers 3 and can be self-propelled. However, the carriage 2 may be towed by being connected to a towing carriage arranged further forward. As shown in FIG. 5, a placing machine 5 for placing the lock bolt 4 on the inner wall of the tunnel is provided at the front portion of the carriage 2. The placing machine 5 includes a ceiling surface placing machine 5a for placing a lock bolt 4a on a ceiling surface of a mine shaft, and a side surface placing machine 5b for placing a lock bolt 4b on a side surface of the mine shaft.
[0011]
The ceiling surface placing machine 5a is provided so as to be movable in the front-rear direction so as to protrude forward from a position placed on the carriage 2, and as shown in FIG. It rotates 90 degrees around and is in a vertical state. As shown by solid lines in FIGS. 5 and 6, the ceiling surface placing machine 5 a receives the lock bolt 4 a while being placed on the carriage 2 along the front-rear direction, and then, as shown by the one-dot chain line, It moves forward from 2 and stands in a vertical position as indicated by a two-dot chain line, and the received lock bolt 4a is driven on the ceiling surface of the tunnel.
[0012]
As shown in FIGS. 5 and 7, the side surface placing machine 5 b is rotated 90 degrees around the vertical axis from the state of being placed on the carriage 2. The side surface placing machine 5b receives the lock bolt 4b while being placed on the carriage 2 along the front-rear direction as shown by solid lines in FIGS. 5 and 7, and then horizontally 90 degrees as shown by the one-dot chain line. And the received lock bolt 4b is driven on the side of the mine shaft.
[0013]
On the carriage 2, a stock portion 6 is provided, which is located behind the placing machines 5a and 5b and stocks a plurality of lock bolts 4a and 4b. As shown in FIGS. 1, 3, and 5, a plurality of long lock bolts 4a that are driven on the ceiling surface and a plurality of short lock bolts 4b that are driven on the side surfaces are arranged on the stock portion 6, respectively. . Each of the lock bolts 4a and 4b is provided with a nut portion (not shown) and is accommodated in a cassette body described later (see FIG. 4).
[0014]
The stock section 6 is provided with a plurality of long bar-shaped chemical anchors (chemical anchor is a registered trademark) 7a used for the ceiling surface and a plurality of short chemical anchors 7b used for the side surfaces. Each chemical anchor 7a, 7b is also accommodated in a cassette body described later (see FIG. 4). Each chemical anchor 7a, 7b is configured by filling a sausage-like bag with a sticking agent, and is pushed into the placement hole before the lock bolts 4a, 4b are placed by the placement machines 5a, 5b. . That is, each driving machine 5a, 5b first forms a driving hole on the ceiling surface or side surface of the mine shaft, pushes the chemical anchors 7a, 7b into the driving hole, and finally drives the lock bolts 4a, 4b. .
[0015]
These chemical anchors 7a and 7b and the lock bolts 4a and 4b are placed on the cassette body 8 shown in FIG. The cassette body 8 is provided on a total of eight carts 2 for each of the aggregate portions of the lock bolts 4a and 4b and the aggregate portions of the chemical anchors 7a and 7b shown in FIG. The cassette body 8 includes a vertical rod 9 disposed on the carriage 2 in the front-rear and left-right directions at predetermined intervals, and a mounting table 10 attached to the vertical rod 9 so as to be tiltable.
[0016]
A chemical anchor 7 or a lock bolt 4 is placed on each mounting table 10 along the longitudinal direction of the tunnel. The chemical anchors 7 or the lock bolts 4 on each mounting table 10 are sequentially gripped and pulled up from above by transfer means described later. Here, each empty mounting table 10 raises the upper mounting table 10 when the lower chemical anchor 7 and the lock bolt 4 are gripped and lifted by transfer means described later. And it does not interfere with the removal of the lock bolt 4.
[0017]
The carriage 2 is provided with transfer means 11 for transferring the lock bolt 4 and the chemical anchor 7 of the stock unit 6 to the placing machines 5a and 5b. As shown in FIGS. 1 to 3, the transfer means 11 is provided on a rail frame 13 provided on the carriage 2 via an extendable rod 12. The rail frame 13 is formed along the front-rear direction at the left and right end portions in the width direction of the carriage 2 and the center portion in the width direction, respectively. Each rail frame 13 is connected by horizontal beams 14 and 15, and is moved up and down by a cylinder 16. The cylinder 16 is appropriately expanded and contracted according to the height of the mine shaft, and is expanded and contracted when the carriage 2 is retracted in the mine shaft after excavation, thereby forming a predetermined clearance with the mine ceiling surface.
[0018]
As shown in FIGS. 1 and 2, guide rails 17 are provided on the lower surface of each rail frame 13 along the longitudinal direction thereof. A first moving body 18 that moves along each guide rail 17 is engaged with each guide rail 17. The first moving bodies 18a and 18b, 18c and 18d are connected via a guide rod 19 and a screw rod 20. Accordingly, the first moving bodies 18a and 18b move integrally, and separately from this, the first moving bodies 18c and 18d move integrally. The guide rod 19 and the screw rod 20 are provided with a second moving body 21 therethrough.
[0019]
Each second moving body 21 moves in the width direction along the guide rod 19 by rotating the screw rod 20 with the motor 22. Each second moving body 21 is moved separately by each motor 22. As shown in FIGS. 1 and 3, the second moving body 21 (a, b, c, d, i, j, k, l) is provided with a gripping portion 23 for gripping the lock bolts 4a and 4b. Yes. The lock bolt gripping portion 23 is movable in the longitudinal direction of the tunnel as shown in FIGS. This is to cope with the long lock bolt 4a for the ceiling surface and the short lock bolt 4b for the side surface.
[0020]
Further, as shown in FIGS. 1 and 3, another second moving body 21 (e, f, g, h) is provided with a gripping portion 24 that grips the chemical anchors 7a, 7b. The chemical anchor grip 23 is formed in a curved surface so as to increase the contact area with the chemical anchors 7a and 7b so as not to crush the soft chemical anchors 7a and 7b formed by filling the sausage-shaped bag with the fixing agent. Hand 25 is provided.
[0021]
Further, as shown in FIGS. 6 and 7, the chemical anchor gripping portion 24 is set to be shorter than the lock bolt gripping portion 23. Therefore, the chemical anchor 7 gripped by the chemical anchor gripping portion 24 can pass in the width direction above the lock bolt 4 gripped by the lock bolt gripping portion 23.
[0022]
The operation of the present embodiment having the above configuration will be described.
[0023]
When the lock bolt 4a and the chemical anchor 7a are supplied to the ceiling surface placing machine 5a, first, the ceiling surface placing machine 5a is drawn onto the carriage 2 as shown by the solid lines in FIGS. To do. Then, the first moving body 18 shown in FIGS. 1 to 3 is moved along the guide rail 17 and positioned above the long lock bolt 4a for the ceiling surface and the long chemical anchor 7a shown in FIG.
[0024]
And each 2nd moving body 21 is independently moved along the guide rod 19 by each motor 22, respectively, and the 2nd moving body 21 for lock bolts (a, b, c, d, i, j, k, l) is positioned above the long lock bolt 4a, and the second movable body 21 (e, f, g, h) for chemical anchor is positioned above the long chemical anchor 7a. At this time, the long chemical anchor 7a is arranged in the approximate center adjacent to the long lock bolt 4a, and the second chemical anchor moving body 21 (e, f, g, h) is used for the lock bolt accordingly. Since the second moving body 21 (a, b, c, d, i, j, k, l) is arranged at the approximate center, the second moving body 21 for chemical anchor (e, f, g, h) When the chemical anchor 7a is positioned above the central portion, the second movable body 21 (a, b, c, d, i, j, k, l) for the lock bolt is positioned above both ends of the lock bolt 4a. become.
[0025]
Then, the chemical anchor holding portion 24 provided on the second chemical anchor moving body 21 (e, f, g, h) is lowered by a lifting mechanism (not shown) to hold the substantially central portion of the long chemical anchor 7a. Then, the lock bolt gripping portion 23 provided on the second moving body 21 for lock bolt (a, b, c, d, i, j, k, l) is lowered by an elevating mechanism (not shown) to lock it long. Hold both ends of the bolt 4a. Then, each chemical anchor gripping portion 24 and the lock bolt gripping portion 23 are raised by a lifting mechanism (not shown), and the long lock bolt 4a and the chemical anchor 7a are taken out from the cassette body 8 shown in FIG.
[0026]
Thereafter, as shown in FIG. 6, the first moving body 18 is moved forward along the guide rail 17 and the second moving body 21 is appropriately moved in the width direction, and the long lock bolt 4 a and the chemical anchor 7 a thus grasped are moved. Each is mounted on the ceiling surface placing machine 5a. At this time, since four chemical anchors 7a and four lock bolts 4a can be supplied to the four ceiling surface placing machines 5a, each of the placing machines 5a is provided with a lock bolt 4a and a chemical anchor 7a, respectively. Can be supplied one at a time.
[0027]
On the other hand, when supplying the lock bolt 4b and the chemical anchor 7b to the side placing machine 5b, first, the side placing machine 5b is drawn into the carriage 5b as shown by the solid line in FIGS. To do. At this time, the ceiling surface placing machine 5a is projected forward so as not to interfere with the side surface placing machine 5b. Thereafter, the short side lock bolt 4b and the chemical anchor 7b are supplied to the side surface placing machine 5b by the same procedure as the ceiling surface placement machine 5a. Here, the holding part 23 for lock bolts is moved so that it may adjoin to the 2nd moving body 21 in the front-back direction, and the space | interval is narrowed (refer FIG. 6). This is because the short lock bolt 4b is gripped with a good balance so as not to be swung.
[0028]
As described above, according to the present embodiment, the plurality of rock bolts 4 and chemical anchors 7 stocked in the stock unit 6 are taken out by the transfer means 11 in a necessary number and are sequentially supplied to the driving machines 5. The Therefore, by storing a large amount of the lock bolts 4 in the stock unit 6 in advance, the operator can perform a lock bolt driving operation remotely or automatically from a safe place away from the driving site. The placement site is a pulverized coal atmosphere, the environment is bad, there is a possibility that the mine roof will collapse, and it is difficult to ensure safety. Therefore, workers should avoid working in such places as much as possible. is there.
[0029]
Further, since it is not necessary for the operator to set the lock bolt 4 on the driving machine 5 every time, the work efficiency can be improved and the construction can be accelerated. When the lock bolt 4 or the chemical anchor 7 disappears from the cassette body 8 on the carriage 2, the emptied cassette body 8 is replaced with a new cassette body 8 in which the lock bolt 4 or the chemical anchor 7 is accommodated. By exchanging the cassette body 8 in this way, the work efficiency is further improved.
[0030]
Moreover, since the driving machine 5 and the stock part 6 are arrange | positioned back and forth along the longitudinal direction of a mine shaft, the expansion of a mine cross-sectional area is not caused. That is, considering the trouble of moving the lock bolt 4 and the chemical anchor 7 from the stock unit 6 to the placement machine 5, it is preferable to arrange the stock unit 6 as close as possible to the placement machine 5. If the driving machine 5 and the stock part 6 are arranged in the vertical direction of the tunnel, or if the driving machine 5 and the stock part 6 are arranged adjacent to each other in the width direction of the tunnel, the cross-sectional area of the tunnel becomes large. It will end up. Therefore, in the present embodiment, the stock portion 6 is disposed so as to overlap with the front projection area of the driving machine 5, and the enlargement of the cross-sectional area of the tunnel is avoided.
[0031]
In the above embodiment, as shown in FIG. 2, since the cross beam 14 is spanned so as to connect the front end portions of the rail frames 17, the ceiling is used to avoid interference with the cross beam 14. As shown in FIGS. 5 and 6, it is necessary that the surface placing machine 5 a is once completely projected forward from the carriage 2 and then rotated 90 degrees. For this reason, the moving mechanism of the ceiling surface placing machine 5a is likely to be complicated. The thing improved in view of this is the lock bolt supply apparatus 1a which concerns on 2nd Embodiment shown in FIG. 8 thru | or FIG.
[0032]
As shown in the figure, the lock bolt supply device 1 a is configured such that a guide rail 26 is laid on a carriage 2 and the carriage 2 is movably mounted on the guide rail 26. According to this configuration, since the above-mentioned cross beam 14 (see FIG. 2) does not exist, as shown in FIG. 8, the ceiling surface placing machine 5a is rotated 90 degrees in a state of jumping out from the carriage 2 by about half. Even if it does in this way, the driving machine 5a does not interfere with the cross beam 14, and the moving mechanism of the driving machine 5a for the ceiling surface can be simplified.
[0033]
In addition, the same code | symbol is attached | subjected to the component similar to previous embodiment, and description is abbreviate | omitted. The guide rails 26 are laid at both ends in the width direction of the carriage 2. The first moving body 18 is engaged with the guide rail 26. A frame 27 is provided on the first moving body 18 via the telescopic rod 12. The cylinder 16 and the link 28 are interposed between the frame 27 and the first moving body 18. The link 28 is removed when the cylinder 16 is contracted.
[0034]
The left and right frames 27 and 27 are connected by a horizontal beam 29. A guide rod 19 and a screw rod 20 are spanned between the left and right frames 27 and 27. A second moving body 21 is provided on the guide rod 19 and the screw rod 20. The second moving body 21 is provided with a gripping portion 23 for a lock bolt and a gripping portion 24 for a chemical anchor.
[0035]
【The invention's effect】
As described above, according to the lock bolt supply device of the present invention, the following excellent effects can be exhibited.
[0036]
(1) An operator can perform a rock bolt driving operation remotely or automatically from a safe place away from the driving site.
[0037]
(2) Since it is not necessary for the operator to set the lock bolt every time, the work efficiency is improved and the construction can be accelerated.
[0038]
(3) Since the driving machine and the stock portion are arranged back and forth along the longitudinal direction of the tunnel, there is no increase in the cross-sectional area of the tunnel.
[Brief description of the drawings]
FIG. 1 is a side view of a lock bolt supply device according to an embodiment of the present invention.
2 is a cross-sectional view taken along line II-II in FIG.
FIG. 3 is a front view of the lock bolt supply device.
FIG. 4 is an enlarged view of a stock portion.
FIG. 5 is a perspective plan view of the lock bolt supply device.
FIG. 6 is a side view showing the operation of the lock bolt supply device.
FIG. 7 is a side view showing the operation of the lock bolt supply device.
FIG. 8 is a side view of a lock bolt supply device showing another embodiment.
FIG. 9 is a plan view of the lock bolt supply device.
FIG. 10 is a front view of the lock bolt supply device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rock bolt supply apparatus 2 Carriage 4 Rock bolt 5 Placing machine 6 Stock part 7 Chemical anchor 11 Transfer means

Claims (3)

A lock bolt supply device that supplies a lock bolt to be driven to the inner wall of a tunnel to a driving machine,
A cart disposed in the tunnel, a driving machine provided on the carriage for driving a lock bolt on the inner wall of the tunnel, and a plurality of lock bolts provided on the carriage located behind the driving machine and stocked comprising a stock unit, and a transfer means provided in the carriage in order to transfer the lock bolt of the stock unit to hit 設機,
The transfer means includes a first moving body provided in the carriage and moving in the front-rear direction, a second moving body provided in the first moving body and moving in the left-right direction, and a lock bolt provided in the second moving body. A lock bolt supply device comprising: a grip portion for gripping the handle . In the stock part, a plurality of long lock bolts and short lock bolts are stocked along the longitudinal direction of the tunnel,
2. The lock bolt supply device according to claim 1 , wherein the second moving body is provided with a plurality of gripping portions movably in the longitudinal direction of the mine shaft in order to correspond to a long lock bolt and a short lock bolt . The lock bolt supply device according to claim 1 or 2, wherein a cassette body on which a plurality of the lock bolts are mounted is attached to the carriage in a replaceable manner .

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