JP2002003148A - Rock hanging-up device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rock hanging up device most suitable for general use, which can surely hang up rocks. SOLUTION: A hole 21 is made by drilling the rock 2 to be hung-up. The steel pipe 3 and the attachment section 41 of the hung up device 1 are inserted into the drilled hole 21. After that, a tip end external peripheral face on which a plurality of grooves 312 are formed is made to engage with the internal wall face 211 by expanding a steel pipe tip section 31 radially by expanding a jack 52 manually and moving only a bar member 4 toward the rear end relatively to the steel pipe 3 in the drilled hole 21. With the hook section mounted on the tip of the boom tip of a heavy vehicle for construction hooked to a locking instrument 62, the rock 2 is hung up by lifting the hang-up device 1 by operating the heavy vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for lifting rocks.

[0002]

2. Description of the Related Art Conventionally, when a rock is transported, a wire is hung over the rock, a lifting hook or the like is attached to the wire, and the rock is transported by a heavy construction vehicle such as a hydraulic shovel.

[0003]

However, rocks,
In particular, rocks in which rock has been rocked with a hydraulic rock drill or a static crusher have sharp corners, and when a wire is laid over these sharp corners, the wires rub at the corners. The wire breaks and rocks fall during lifting. Such a method of lifting rocks using wires is not always a reliable method.

[0004] When the rock is divided into a plurality of rocks as described above, these rocks are separated from each other by cracks introduced by a hydraulic rock rocker or the like. It is impossible to bridge. Therefore, there has been a demand for a general-purpose rock lifting device that can easily lift and carry out a rock in such a state.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a rock lifting device excellent in versatility that can reliably lift rock.

[0006]

A rock lifting device according to the present invention is capable of being inserted into a drill hole formed in a rock along a predetermined drilling direction in order to achieve the above object.
Moreover, the steel pipe has a distal end portion which is expandable in the radial direction, and a steel pipe which can be inserted into the hole while being inserted through the steel pipe, and the distal end portion has an outer diameter larger than the inner diameter of the steel pipe. In addition, a rod-shaped member protruding from the steel pipe distal end toward the distal end side in a state in which the skirt spreads in the drilling direction, a movable member operably provided by a manual operation, and the movable member A relative movement mechanism that relatively moves the rod-shaped member with respect to the steel pipe along a drilling direction. Then, by moving the rod-shaped member relatively to the steel pipe toward the rear end side of the steel pipe, the tip end of the rod-shaped member radially expands the tip end of the steel pipe, and engages with the inner wall surface of the hole. In this engagement state, the steel pipe can be raised by an external force applied from outside the device, and the rock can be lifted.

[0007] In the rock lifting device configured as described above, after the steel pipe is inserted into the drilled hole formed in the rock, the rod-like member is moved toward the rear end of the steel pipe relative to the steel pipe by the relative movement mechanism. When it is moved, the distal end of the steel pipe is radially expanded by the distal end of the bar-shaped member formed so as to expand the skirt, and the outer peripheral surface of the distal end of the steel pipe is engaged with the inner wall surface of the hole. Then, the steel pipe is raised in the engaged state, and the rock is lifted. Therefore, not only rocks that can be lifted by wire as in the past but also rocks that can be cut by wire and are difficult to lift by wire (for example,
Rocks with sharp edges) and rocks that cannot be passed over in a state of being split into a plurality of rocks by the split rock treatment can be reliably lifted.

Further, the rock lifting device includes a movable member which is operated by a manual operation, and a relative moving mechanism relatively moves the rod-shaped member in accordance with the operation. The steel pipe can be engaged with the inner wall surface of the borehole by relatively moving the bar-shaped member by manual operation without the need for the drive source of the above. Therefore, it has the following specific advantages. For example, it may be configured to automatically control the hydraulic cylinder to relatively move the bar-shaped member, but when the rock to be lifted is located at a position away from the road, the hydraulic source is conveyed to the vicinity of the lifting device, Alternatively, it is necessary to route a hydraulic pipe over a long distance from a hydraulic source mounted on a vehicle parked near a road to a lifting device, which may not be practical. On the other hand, as in the above invention, when the bar-shaped member can be relatively moved by manual operation, the device can be fixed to the rock by human power, regardless of the location of the rock, Rocks can be reliably lifted.

As the movable member and the relative moving mechanism, for example, a jack or the like can be used. In this way, even with a small manual force, the rod-shaped member can be relatively moved to form the steel pipe. Can be firmly fixed in the hole.

[0010]

FIG. 1 is a front view showing a first embodiment of a rock lifting device according to the present invention, and FIG. 2 is a cross-sectional view of the lifting device of FIG. is there. As shown in these figures, the lifting apparatus 1 inserts a steel pipe 3 into a drilled hole 21 formed in a rock 2 in advance, and expands a tip 31 of the steel pipe 3 in a radial direction to thereby form a steel pipe tip. This device lifts the rock 2 by engaging the inner wall surface of the drill hole 31 with the hole 31 and then raising the steel pipe 3 in this engaged state. This lifting device 1 has roughly four components,
That is, the steel pipe 3, the rod-shaped member 4 inserted into the steel pipe 3, and the rod-shaped member 4 are relatively moved with respect to the steel pipe 3 so that the steel pipe tip 3
1 is divided into a relative movement mechanism 5 for expanding the radial direction 1 and a hanging portion 6. Hereinafter, each component will be described in detail.

The steel pipe 3 has a hole 21 formed in the rock 2.
The tip portion 31 is tapered and formed with two slits 311 in its longitudinal direction, and can be expanded in the radial direction (left and right direction in FIG. 1). I have. As shown in FIG. 3, a plurality of grooves 312 are formed in the steel pipe distal end 31. When the steel pipe distal end 31 expands in the radial direction as described later, the steel pipe distal end 31 is firmly engaged with the bore hole inner wall surface 211. Combine. As described above, in this embodiment, by providing the plurality of grooves 312, the rock 2
As a configuration for increasing the engagement strength, the rock engagement portion having the plurality of grooves 312 is formed on the outer peripheral surface of the steel pipe tip portion 31 as described above. As a joint, an uneven portion is provided on the outer peripheral surface of the steel pipe tip portion 31,
An engaging member may be embedded. That is, by changing the outer diameter of the steel pipe tip portion 31 continuously or discontinuously, the engagement strength with the rock 2 may be increased.

The bar-shaped member 4 can be inserted into the steel pipe 3 configured as described above. As shown in FIGS. 1 and 2, the rod-shaped member 4 has a frustum-shaped attachment 41 attached to a distal end of a threaded steel rod 42, and is inserted from the distal end side of the steel pipe 3. In this inserted state, it can be inserted into the hole 21. Further, the attachment portion 41 has an outer diameter larger than the inner diameter of the steel pipe 3,
Moreover, it protrudes from the steel pipe distal end portion 31 to the distal end side in a state where the skirt spreads. As described above, by forming the bar-shaped member 4 by the steel bar 42 and the attachment portion 41, the bar-shaped member 4
Is easier to manufacture than when integrally molded, and the cost of the rod-shaped member 4 can be reduced. On the other hand, the steel rod rear end 43 is a fixing member 61 of the hanging portion 6 described later.
And is screwed into the female screw portion formed in the female thread.

As shown in FIG. 3 (a), when the attachment portion 41 is sufficiently protruded from the steel pipe tip 31 to the tip side (downward in FIG. 3), the steel pipe tip 31 extends straight downward. Thus, it is maintained in a non-contact state with the bore inner wall surface 211. On the other hand, a relative moving mechanism 5 described next
When the rod-shaped member 4 is moved toward the rear end side (upward in the figure) relative to the steel pipe 3 by the above, the attachment part 41 enters into the steel pipe tip part 31 as shown in FIG. As a result, the steel pipe tip portion 31 is expanded in the radial direction (the left-right direction in the drawing), and the outer peripheral surface on which the plurality of grooves 312 are formed is engaged with the bore inner wall surface 211. In addition,
Reference numeral 44 denotes an air injection hole provided to penetrate along the central axis of the rod-shaped member 4.

The relative moving mechanism 5 for moving the bar-shaped member 4 relative to the steel pipe 3 is constructed as follows. In the relative movement mechanism 5, as shown in FIGS. 1 and 2, the holding plate 51 is disposed on the surface of the rock 2 so as to close the hole 21. A through hole 511 having a female screw is formed in the center of the surface of the holding plate 51, and the upper end 32 of the steel pipe is detachably screwed into the through hole 511. And the bar-shaped member 4 inserted through the steel pipe 3
The portion protruding from the hole 21 extends upward through the through hole 511.

A pair of jacks 52 are disposed substantially parallel to the steel rod 42 between the holding plate 51 and the hanging portion 6, and each jack 52 is configured as follows. That is, the jack 52 includes a base 521 fixed to the holding plate 51, a pair of first arms 522, and a pair of second arms 523. One end of each first arm 522 is swingably supported by the base portion 521, and one end of the second arm 523 swings at the other end via a pair of nut members 524 and 525, respectively. It is freely supported. Further, the other end of each second arm 523 is swingably supported by a fixing member 61 of the hanging portion 6 described later via a pin 526. Further, the nut member 52
4 and 525, a threaded rod 527 having an external thread formed over the entire length is hung. The threaded rod 527 is rotatably held by a nut member 524 on one side (the right side in FIG. 1) and the other (FIG. 1). (Left side) of the nut member 525. A manually rotatable handle (movable member) 7 is attached to one end of the screw rod 527. When the handle 7 is rotated in one direction,
Each nut member 524, 525 moves in the approaching direction,
Along with this, the hanging part 6 moves so as to be separated from the presser plate 51. On the other hand, when the handle 7 is rotated in a direction opposite to the above-described one direction, the nut members 524 and 525 are separated from each other, and accordingly, the hanging portion 6 and the holding plate 51 move so as to approach each other. At this time, since the steel bar rear end 43 is screwed into the fixing member 61 of the hanging portion 6, the bar-shaped member 4 moves integrally with the hanging portion 6.

For this reason, in a state where the hanging part 6 and the holding plate 51 are close to each other, the attachment part 41 is located below the steel pipe 3, and as shown in FIG. 41 projects sufficiently forward from the steel pipe tip 31 (downward in the figure), the steel pipe tip 31 is maintained in a non-contact state with the drilled inner wall surface 211, and the steel pipe 3 and The rod-shaped member 4 can be inserted. On the other hand, when the handle 7 is rotated in the above-described one direction, the handle 6 and the presser plate 51 are separated from each other, and the handle 6 moves upward. At this time, since the upper end of the steel pipe 3 is fixed to the holding plate 51, only the rod-shaped member 4 is
3B, the attachment portion 41 enters the steel pipe distal end 31 as shown in FIG. 3B, and as a result, the steel pipe distal end 31 The outer peripheral surface on which the plurality of grooves 312 are formed is engaged with the inner wall surface 211 of the hole while being expanded in the radial direction (the left-right direction in the figure).

Further, in order to lift the rock 2 with the steel pipe tip 31 engaged with the bored inner wall surface 211 as described above, in the lifting device 1, as described above, It is attached to the rear end 43 of the rod-shaped member 4. The hanging portion 6 includes a fixing member 61 that is screwed with the steel rod rear end 43.
And a locking member 62 attached to the upper surface of the fixing member 61.
It is composed of Further, a through hole 621 is formed in the locking tool 62 in the horizontal direction.

Since the rear end 43 of the rod-shaped member 4 is fixed to the hanging portion 6 in this manner, the hook attached to the end of the boom of the heavy construction vehicle such as a hydraulic shovel is used as the locking member 62. When the lifting device 1 is hooked on the through hole 621 and the lifting device 1 is lifted, the rock 2 engaged with the steel pipe distal end portion 31 is lifted and can be carried out to another place.

Next, a method of lifting a rock using the rock lifting apparatus 1 configured as described above will be described with reference to FIGS. 1 and 4. FIG.

First, as shown in FIG. 1, one hole 21 is formed in the rock 2 to be lifted from the surface side thereof. In this case, it is desirable to form the hole 21 at or near the center of gravity of the rock 2.

Then, the tip of the lifting device 1, that is, the steel pipe 3 and the attachment portion 41 are inserted into the bore 21. At this time, each jack 52 is bent so that the holding plate 51 and the hanging portion 6 are in proximity to each other, and the attachment portion 41 projects sufficiently from the steel pipe tip 31 to the tip side, and the steel pipe tip 31 is In the non-expanded state (FIG. 3
(State of (a)). Then, in this state, the tip of the lifting device 1 is inserted into the hole 21 until the holding plate 51 comes into contact with the surface of the rock 2 (FIGS. 1 and 2).

After the completion of the insertion, the handle 7 of each jack 52 is rotated to extend the jack 52, and
By moving only the rod-shaped member 4 toward the rear end relative to the steel pipe 3, the outer peripheral surface of the steel pipe distal end portion 31 is expanded in the radial direction, and is engaged with the bore hole inner wall surface 211. Thus, the lifting device 1 is fixed to the rock 2 (FIG. 4).

Subsequently, the hook attached to the end of the boom of the heavy equipment vehicle is hooked on the locking member 62, and the lifting device 1 is lifted by operating the vehicle. Simultaneously with the lifting of the lifting device 1, the rock 2 is also lifted and carried out to an appropriate place.

As described above, according to the rock lifting device of this embodiment, the following effects can be obtained. That is, for example, when a rock 2 having an acute angle as shown in FIG. 4 is hung over a wire, there is a possibility that the wire is cut at the corner, but according to this embodiment, Thus, the rock 2 can be reliably lifted. The shape of the rock 2 is not limited to this, and the rock 2 can be lifted by applying the present invention to a rock of an arbitrary shape. Can be lifted.

When the rock is relatively large, a plurality of lifting devices 1 are prepared in advance, a plurality of holes are formed in the rock to be lifted, and the lifting device 1 is attached to each of the holes. After setting, the steel pipe tip 31 of each lifting device 1 is expanded in the radial direction and fixed to the rock, all the lifting devices 1 are simultaneously lifted, so that a large rock can be reliably lifted.

Further, in this rock lifting device, since the rod-shaped member 4 can be moved by the jack 52 to expand the steel pipe tip portion 31, the lifting device 1 is fixed to the rock 2 by manual operation. Can be. Also, by using the jack 52, even with a small manual force, the rod-shaped member 4 can be moved to firmly fix the steel pipe distal end portion 31 in the drilled hole 21. As described above, when the bar-shaped member can be relatively moved by manual operation, the device can be fixed to the rock by human power regardless of the position of the rock, and the rock can be reliably suspended. Can be raised.

The relative movement mechanism 5 for moving the rod 4 is not limited to the jack 52 described above. That is, for example, the rod-shaped member 4 is moved manually without using a drive source such as the above-described hydraulic source, pneumatic source, or power supply, such as a manual or foot-operated hydraulic jack. I just need. As an example, a screw mechanism 53 as shown in FIG. 5 may be used.

As shown in FIG.
A nut member 531 fixed to the upper surface of the holding plate 51 is provided, and an intermediate portion of the steel rod 42 is screwed to the nut member 531. A horizontally extending handle 71 and a locking member 63 are attached to the steel rod rear end 43 extending upward from the nut member 531. By rotating the handle 71, the rod-shaped member 4 is cut. It can move in the hole forming direction. Therefore, even with a small manual force, the rod-shaped member 4 moves relatively to the steel pipe 3 and the steel pipe tip 31 expands, so that the lifting device 1 can be firmly fixed to the rock 2.

Further, in this embodiment, rocks are lifted and carried out by a crane vehicle. However, as a method of carrying out the rocks, other heavy equipment vehicles, for example, a power shovel, may be used in addition to the crane vehicle. You can use the cableway. In this way, the range in which rocks can be carried out can be expanded by using the cableway.
In addition, for example, in a mountainous area where it is difficult to carry a driving source such as a hydraulic pressure source, a pneumatic pressure source, or a power supply, the rock lifting device 1 that can be manually operated is particularly advantageous. Hereinafter, the second embodiment will be described in detail with reference to FIG.

FIG. 6 is an overall view for explaining a rock removing apparatus using a rock lifting apparatus according to a second embodiment of the present invention.

As shown in the figure, a cableway 100 is formed so as to pass right above or near the rock 2 to be removed. A rock removing device 110 that lifts and holds the rock 2 and transports the rock 2 along the cableway 100 is arranged on the cableway 100.
The cableway 100 includes a main cable 101 for suspending a transport device 120, and a traveling cable 102 looped between a crane truck 8 and an anchor 170, which will be described later, for moving the removing device 110. It consists of a wire consisting of

A driving cable 10 made of a wire for suspending the rock lifting device 1 is provided below the traveling cable 102.
3 are provided, and the above-mentioned wires are stretched substantially parallel to the vertical direction so as not to contact with each other. In addition,
One end of the driving cable 103 is connected to a hoisting device (not shown) provided on the crane truck 8, and the length of the driving cable 103 can be adjusted by driving this device.

The removing device 110 includes the above-described rock lifting device 1 and a transport device 120 that moves along the cableway while supporting the lifting device 1.

As shown in FIG. 6, the transport device 120 is a roller 13 for suspending the transport device 120 on the main rope 101.
1 and a main body 140 supported by the suspension 130, and a part of the traveling cable 102 is fixed to the main body 140. Thus, when the traveling rope 102 is driven and circulated by the crane truck 8, the transport device 120 moves along the ropeway.

The lower part of the main body 140 is provided with a roller 1.
A pair of support parts 150 provided with 51 are attached.
The drive cable 103 is stretched over the rollers 151, and the drive cable 103 is extended downward by a predetermined length between the rollers 151. Further, a support roller 160 rotatably attached to the rock lifting device 1 is suspended from the stretched portion. With such a configuration, the transporting device 120 attaches the driving rope 103 to the support 150
It moves along the cableway 100 while maintaining a stretched state. Accordingly, the driving cable 10 is supported between the support portions 150.
3 is a rock lifting device 1,
And move together. In addition, since the length of the drive cable 103 can be adjusted, the length of the portion extended downward between the support portions 150 can be changed.
Thereby, the lifting device 1 can be moved up and down with respect to the transport device 120.

Further, since the rock lifting device 1 is detachably attached to the support roller 160, work equipment and the like may be mounted instead of the lifting device 1 and transported by the transport device 120. it can.

Next, a description will be given of a removing method for removing a rock using the rock removing apparatus configured as described above.

First, as shown in FIG. 6, after the crane truck 8 is installed, the rock 2 to be removed is located at a position where the cableway 100 passes right above or near the rock 2 to be carried out. An anchor root stock 170 capable of withstanding the weight of the anchor is selected.

Then, the wires serving as the main rope 101, the traveling rope 102, and the driving rope 103 are pulled up from the crane truck 8 using a small winch or the like arranged near the anchor root stock 170. Subsequently, the main rope 101 and the driving rope 10
3 is fixed at one end to the anchor 170 and the other end is attached to the boom 81 of the crane truck 8. On the other hand, the traveling cable 102 is connected to the boom 81 of the crane truck 8 as described above.
Pulley 82 and anchor root stock 170 attached to
Between the driven pulley 171 and the driven pulley 171. In this state, the roller 1 of the suspension unit 130 of the transfer device 120 is
After engaging the wire 31 with the wire of the main rope 101, the boom 8
1 to tension the wire of the main rope 101,
0 is formed. The traveling cable 102 has a part fixed to the main body 140 of the transport device 120, and the driving cable 103 is wound around the roller 151 of the support 150,
The support roller 160 to which the lifting device 1 is attached is suspended by extending downward by a predetermined length.

Next, using the transfer device 120, work materials such as a scaffolding material, a rock fall prevention net, and an excavator are transferred to a place where the rock 2 to be removed is present, and work preparation such as installation of a scaffold is performed. do.

After the work preparation is completed, the transfer device 12
After moving 0 to just above or near the rock 2 to be removed and positioning it, the hoisting device is operated on the crane truck 8 side to extend the drive cable 103 and lower the lifting device 1 to above the rock 2. Then, the lifting device 1 is fixed to the rock by the method described above. When the hoisting device 103 is driven by the crane truck 8 to hoist the drive rope 103, the rock 2 is lifted together with the lifting device 1. Then, the transport device 12
0 is moved to the crane truck 8 side, and the rock 2 is carried out.

As described above, according to the rock removing device according to the second embodiment, even if the rock 2 to be removed exists within a range that the crane truck 8 cannot reach.
By forming the cableway 100 and moving the transport device 120 including the rock lifting device 1 along the cableway 100, the rock can be reliably lifted and carried out.
Of course, when a plurality of rocks to be removed are scattered directly below the cableway 100, the above-described removal method may be repeated to remove the rocks.

Further, since the rock lifting device 1 of the present invention can be operated manually, in such a case where the cableway 100 is used, that is, the crane truck 8 does not reach and the cableway 1
This is particularly advantageous in mountainous areas where rocks must be removed by forming 00s. This is because, for example, the rod-shaped member may be relatively moved by automatically controlling the hydraulic cylinder. However, when the rock to be lifted exists in the mountainous area, the hydraulic source is transported to the vicinity of the lifting device 1. It is necessary to route the hydraulic piping over a long distance from the hydraulic source mounted on the crane truck parked near the road to the lifting device 1, but such operations are practically difficult. On the other hand, the rock lifting device 1 according to the present invention does not require a driving source such as a hydraulic power source even in such a place. Can be reliably lifted.

Further, the rock transport device 120 according to the present embodiment can move along the cableway 100 by operating the crane truck 8, and the lifting device 1 can also be moved up and down by the crane truck 8. can do. Therefore, it is not necessary to bring a driving device for the lifting work into the work site where the rock is lifted, and the work process can be simplified.

The present invention is not limited to the above embodiments, and various changes other than those described above can be made without departing from the gist of the present invention.

[0046]

As described above, according to the present invention, after inserting a steel pipe into a drilled hole formed in a rock, the distal end portion is radially expanded to drill the outer peripheral surface of the distal end of the steel pipe. Since the rock is lifted by engaging the inner wall surface and raising the steel pipe in the engaged state, there is a possibility of wire cutting as well as rock that can be lifted by wire as in the past, and lifting by wire (For example, a rock having an acute angle portion) or a rock that cannot be passed over in a state where it is split into a plurality of rocks by a split rock treatment can be reliably lifted.

In addition, the rock lifting device is provided with a movable member which is operated by a manual operation, and a relative moving mechanism relatively moves the rod-shaped member in accordance with the operation. The steel pipe can be engaged with the inner wall surface of the drilled hole by relatively moving the bar-shaped member by manual operation without using it, and it has excellent versatility without being limited to the place where the rock exists.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a rock lifting device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is an enlarged view of a tip portion of a steel pipe in the lifting device of FIG.

FIG. 4 is a diagram illustrating a method of lifting rocks using the lifting device of FIG. 1;

FIG. 5 is a view showing a modification of the first embodiment of the rock lifting device according to the present invention.

FIG. 6 is an overall view illustrating a rock removing device according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lifting device 2 ... Rock 3 ... Steel pipe 4 ... Bar-shaped member 5 ... Relative movement mechanism 7, 71 ... Handle (movable member) 21 ... Drilling 31 ... Steel pipe tip 41 ... Attachment part (steel pipe tip) 42 ... Steel rod 52: jack (relative moving mechanism) 53: screw mechanism (relative moving mechanism)

Claims (1)

[Claims] 1. A steel pipe which can be inserted into a drilled hole formed in a rock along a predetermined drilling direction, and has a tip end portion which is expandable in a radial direction, and is inserted through the steel pipe. Can be inserted into the drilled hole, the tip of which has an outer diameter larger than the inner diameter of the steel pipe, and protrudes from the tip of the steel pipe to the tip side in a state where the skirt spreads in the drilling hole forming direction. A movable member operably provided by a manual operation; and a relative movement for moving the rod member relative to the steel pipe along the drilling direction in accordance with an operation of the movable member. A mechanism for moving the rod-shaped member relative to the steel pipe toward the rear end side of the steel pipe to radially expand the tip end of the steel pipe by the tip end of the rod-shaped member so that the inside of the borehole is expanded. Engage with the wall and in this engaged state Rock lifting device, characterized in that the external force applied from 置外 portion has become possible lifting the rock by raising the steel tube.