JP2004131994A - Kibble overturning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely set a kibble so that the kibble lifted by a kibble rope in sinking a shaft can be automatically turned over at the specified position of cutting tower. <P>SOLUTION: In this kibble overturning device, the kibble 10 suspended from the kibble rope 11 is turned over at the specified position of the cutting tower 1 vertically installed on the shaft. Guide rollers 12 and 12 are pivotally installed at the right and left outside lower center positions of the kibble 10. An overturning guide frame 20 accepting and supporting the kibble 10 so that the kibble can be turned over by the guide rollers 12 and 12 inserted into a bottomed guide rail part 21 from the upper side is pivotally supported on the cutting tower 1 at a specified position so as to be vertically rotated. The overturning guide frame 20 in the state of supporting the kibble 10 is rotated downward by retracting a cylinder 26 about a pivot shaft, and the kibble 10 is wound down to turn over the kibble 10 about their guide rollers 12 and 12. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kibble tipping device that lifts a kibble equipped with a shear at a predetermined position of an open-cut turret so as to overturn the kibble in order to discharge the shear due to shaft excavation.
[0002]
[Prior art]
Conventionally, as a method of discharging shear in shaft excavation, especially in shaft excavation with a large excavation depth, a kibble is hung on a kibble rope hanging down through a scaffold suspended in a shaft, and a kibble with the shear is connected to a rider. 2. Description of the Related Art There is known a type in which a hoist is lifted by a hoist and falls at a predetermined position on an open-cut turret.
[0003]
This conventional method has the advantage that the kibble can be pulled up faster and can easily cope with the excavation depth than the method using the guide rail.However, since the kibble has poor directional stability during lifting, it is installed on the open-cut turret. It was difficult to automatically guide the robot to the falling device and to fall. Therefore, a worker is arranged at the falling position of the digging turret, and the kibble is prepared by the hand of the worker, and there is a problem in securing the safety of the worker.
[0004]
In order to solve the above-mentioned problem, Japanese Patent No. 2936526 discloses that a rider 50 is provided with a direction correcting device 51 for a kibble 54 as shown in FIG. There is disclosed means for installing a tipping device 53 comprising a guide rail 53a and a curved guide rail 53b, pulling up the kibble 54 whose direction has been corrected to the tipping device 53, and causing the kibble 54 to tip over in a predetermined direction along with the pulling operation. I have.
[0005]
[Problems to be solved by the invention]
However, in order to overturn the kibble 54 by the above-described means, while pulling up the kibble 54 to the cutting tower 52, the overturning upper guide roller 55 pivotally supported at the upper symmetrical position on the side surface of the kibble is attached to the curved guide rail 53b, and The lower guide roller 56 for overturning, which is pivotally supported at the symmetric position, must be fitted to the vertical guide rail 53a, and guided to the overturning device 53. Accordingly, in order to simultaneously fit the four guide rollers 55, 56 on the left and right sides of the ascending kibble 54 in conformity with the respective guide rails 53a, 53b, a fitting error occurs even if the kibble 54 is slightly shaken or rotated. In addition to the fact that the direction of the kibble 54 is corrected, the rider 50 during the lifting is not supported, so that the kibble 54 during the ascent is likely to swing or rotate slightly, and the guide roller 55 to the tipping device 53 is easily generated. , 56 could be prevented from being smoothly fitted, resulting in a delay in work.
[0006]
The present invention has been made in view of the above problems, and it is an object of the present invention to ensure that a kibble that moves up and down with a kibble rope in a shaft excavation is set to be able to automatically fall over at a predetermined position of an open-cut turret.
[0007]
[Means for Solving the Problems]
The present invention relates to a kibble tipping device for tipping a kibble hung on a kibble rope at a predetermined position of an open-cut turret erected on a shaft, wherein a guide roller is provided at a lower central target position on the left and right outer surfaces of the kibble. The guide roller is fitted into the bottomed guide rail portion from above, and the guide frame for receiving and supporting the kibble so as to be able to tip over is pivotally pivotable to a predetermined position of the cutting tower. When the guide frame for supporting the kibble is supported, the guide frame for overturning is pivoted downward by the contraction of a cylinder around the support shaft and the kibble is rolled down, whereby the kibble falls over its own guide roller to the support point. I did it.
[0008]
In addition, below the rider receiver installed above the guide frame for overturning, a rope receiving sheep facing the upper and lower steps across the kibble rope is installed so as to be able to advance and retreat, and the rider receiver is mounted on the rider receiver. The sheep moves forward to hold the kibble rope when the kibble is guided to fall over which is supported. As a result, the lowering of the kibble to the guide frame for overturning is induced, and the horizontal movement of the rope for kibble that occurs when the kibble falls over is controlled.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the kibble tipping device of the present invention will be described in detail with reference to the drawings.
[0010]
FIGS. 1 to 9 show an embodiment of the present invention, in which an open-cut turret 1 erected on a shaft (not shown) and a rope 11 for kibble of a hoist (not shown) are shown. A kibble 10, a fall guide frame 20 pivotally supported at a predetermined position of the digging turret 1 to pivotally receive and support the kibble 10, and a rider installed above the fall guide frame 20. It is generally configured to include a receiver 30 and stepped opposite rope receiving sheeps 35 and 36 installed below the receiver 30.
[0011]
The cross-section rectangular kibble 10 on which the excavation shears are mounted has guide rollers 12 and 12 pivotally mounted at symmetric positions in the lower center on the left and right outer surfaces, and is rotatable at the upper end where the guide rollers 12 and 12 are located. The kibble rope 10 is suspended from a hook 16 of a suspending bracket 13 at the tip of the rope 10 via a handle 13 attached to the shaft.
[0012]
Reference numeral 15 denotes a swing that moves up and down between the digging tower 1 and the scaffold around the kibble rope 11 using the hanging wire ropes 2 and 2 of the scaffold (not shown) suspended in the shaft. The rider is a stop device, and is coupled with the hanging fitting 14 when the kibble 10 is moved up and down to guide the kibble 10 up and down, thereby preventing the kibble 10 from swinging or rotating.
[0013]
The overturning guide frame 20 has a frame portion 23 of a size that can receive the kibble 10 and is formed by assembling a steel aggregate in a substantially box shape that is open frontward and vertically. The tip portion of the frame portion 23 has the kibble. A pair of bottomed guide rail portions 21 having an upward opening 22 into which ten guide rollers 12 can be fitted is provided.
[0014]
The overturning guide frame 20 is disposed at a predetermined distance from the upper base end of the frame portion 23 at a central portion of the mounting beam 8 that extends in a direction orthogonal to the overturning guide frame 20 in the digging turret 1. It is pivotally supported via two brackets 3 so as to be vertically rotatable about a support shaft 7.
[0015]
One end of a rod 26a of a cylinder 26 for overturning drive is attached via a bracket 25 to the center of the lower horizontal aggregate 24 in the overturning guide frame 20, and the other rod 26b of the cylinder 26 is It is rotatably attached to a beam 4 for hanging a cylinder of the digging tower 1 via a bracket 5.
[0016]
Further, the lower horizontal aggregate 24 of the frame portion 23 has support arms 27, 27 of the overturning guide frame 20 which are arranged on both sides of the overturning driving cylinder 26 and extend and contract following expansion and contraction of the cylinder 26. One end is pivotally supported via brackets 28, 28, and the other end is rotatably fixed to the cutting tower 1 via the brackets 6, 6.
[0017]
Therefore, the overturning guide frame 20 suspended from the mounting beam 8 is extended and contracted by the cylinder 26 so that the support shafts 7 and 7 are supported by the supporting mechanisms 27 and 27 that extend and contract following the cylinder 26. Is pivoted about the fulcrum.
[0018]
At a position further above the overturning guide frame 20 installed on the digging turret 1, a rider receiver 30 that supports the rider 15, who has climbed up with the kibble 10 when the fall is guided, is installed so as to advance and retreat by the cylinder 30 a. Have been.
[0019]
In addition, on the mounts 37 and 38 located below the rider receiver 30, sheaves 35 and 36 for rope receivers facing up and down steps with the kibble rope 11 interposed therebetween can be advanced and retracted by cylinders 39 and 39. is set up. The sheeps 35 and 36 move forward from the retreat position to hold the kibble rope 11 when the kibble 10 in which the rider 15 is supported by the rider receiver 30 falls, and lower the kibble 10 to the fall guide frame 20. To induce. The movement of the kibble rope 11 is controlled by receiving the force in the horizontal direction of the kibble rope 11 generated when the kibble 10 falls.
[0020]
Next, the overturning operation of the kibble in the present embodiment will be described. When the kibble 10 loaded with shear is pulled up from the bottom of the shaft to the open-cut turret 1 by winding up the kibble rope 11 by a hoist as shown in FIG. In addition, the overturning guide frame 20 is retracted to a retracted position in the digging turret 1 by shrinking the cylinder 26 so as not to obstruct the passage of the kibble 10.
[0021]
As shown in FIG. 5, when the rider 15 connected to the hanging bracket 14 of the kibble 10 is wound up above the rider receiver 30, the rider receiver 30 is driven in the axial direction of the kibble rope 11 by driving the cylinder 30a. While moving forward, the cylinder 26 extends and the overturning guide frame 20 rotates upward to the position below the kibble 10 to receive the kibble 10.
[0022]
Next, as shown in FIG. 6, the rider 15 is supported by the rider receiver 30 which has been advanced by lowering the kibble rope 11, the hanging bracket 14 is separated from the rider 15, and is hung down together with the kibble 10. Are moved forward in the axial direction of the kibble rope 11 to hold the kibble rope 11.
[0023]
Since the rider 15 is supported by the rider receiver 30 and the kibble rope 11 is held by the upper and lower sheeps 35 and 36, the kibble 10 descends without swinging or rotating a short distance to the fall guide frame 20. The guide rollers 12, 12 of the kibble 10 easily fit into the openings 22, 22 of the guide rail portions 21, 21 of the fall guide frame 20. Even if the position of the kibble 10 slightly shifts in the front-rear direction at the time of guiding the fall of the kibble 10, the openings 22, 22 of the guide rail portions 21, 21 can be moved in the front-rear direction by rotating the fall guide frame 20. Therefore, it is very easy to fit the guide rollers 12, 12 into the openings 22, 22 of the guide rails 21, 21, respectively.
[0024]
As shown in FIG. 7, when the cylinder 26 further extends and the overturning guide frame 20 rotates to a substantially horizontal position, the guide rollers 12, 12 of the kibble 1 are guided by the guide rail portion 21, and the guide rollers 12 are moved. , 12 are wound down until they reach the bottom 21a of the guide rail portions 21, 21.
[0025]
Then, as shown in FIG. 8, by contracting the cylinder 26, the fall guide frame 20 receiving the kibble 10 rotates downward, and as shown in FIG. 9, the kibble 10 is further rolled down. The kibble 10 falls forward with its own guide rollers 12 and 12 as fulcrums, and discharges mounting slips. By adjusting the degree of expansion and contraction of the cylinder 26, the position of the fulcrum of the guide roller 12 can be changed in the front-rear direction. Therefore, the tipping position of the kibble 10 can be changed to finely adjust the discharge position of the shear. It is possible.
[0026]
When the kibble 10 falls down, a flat force is applied to the kibble rope 11, but the sheeps 35 and 36 holding the kibble rope 11 receive this force so that the kibble rope 11 does not move greatly. The horizontal movement of the rope 11 is controlled. Therefore, the horizontal force of the kibble rope 11 does not directly act on the rider 15, and the rider 15 is not damaged by the kibble rope 11.
[0027]
The kibble 10 that has been emptied after the release of the shears is pulled up and escapes from the overturning guide frame 20, and the overturning guide frame 20 retreats to the retreat position again. The rider receiver 30 and the rope receiving sheeps 35 and 36 also retract to the retracted position. The rider 15 is coupled to the suspension fitting 14, and the kibble 10 is rolled down into a shaft for loading of excavated shear.
[0028]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
[0029]
Conventionally, when guiding the kibble to the overturning device, compared to the case where the four guide rollers of the kibble were fitted and fitted to the four guide rails fixed to the digging tower, in the present invention, Since the two guide rollers of the kibble may be fitted and fitted to the two guide rail portions of the overturning guide frame that can be adjusted and moved, the matching and fitting of the guide rollers at the time of guiding the fall can be easily performed.
[0030]
Also, when guiding the fall of the kibble, the rider is supported and the kibble rope is held by the sheep facing up and down different steps to guide the kibble to the fall guide frame for a short distance, so that the kibble guide roller and the fall It is possible to extremely easily match and fit the opening of the guide rail portion in the guide frame, and it is possible to prevent a fitting error at the time of leading overturn.
[0031]
Further, when the kibble falls, the sheep receives the horizontal force applied to the kibble rope, so that it is possible to prevent the rider from being damaged by the kibble rope and to make the rider slim.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a kibble tipping device according to the present invention.
FIG. 2 is a front view of the overturning device of FIG. 1;
FIG. 3 is an enlarged front view showing a rider, a kibble and a guide frame for falling in the falling device of FIG. 1;
FIG. 4 is a side view showing an operation state of the overturning device of FIG. 1;
FIG. 5 is a side view showing an operation state of the overturning device of FIG. 1;
FIG. 6 is a side view showing an operation state of the overturning device of FIG. 1;
FIG. 7 is a side view showing an operation state of the overturning device of FIG. 1;
FIG. 8 is a side view showing an operation state of the overturning device of FIG. 1;
FIG. 9 is a side view showing an operation state of the overturning device of FIG. 1;
FIG. 10 is a side view showing a conventional example.
[Explanation of symbols]
1 open turret, 10 kibble, 11 kibble rope, 12 guide rollers, 20 overturning guide frame, 21 guide rails, 26 cylinder, 30 rider receiver, 35 sheep, 36 sheep,

Claims (2)

In a kibble overturning device for overturning a kibble hung on a kibble rope at a predetermined position of an open-cut turret erected on a shaft, a guide roller is axially mounted at a lower central target position on the left and right outer surfaces of the kibble. The guide roller is inserted into the bottomed guide rail from above to support the fallable guide frame for receiving and supporting the kibble so that the kibble can be overturned and pivotally supported at a predetermined position of the digging turret so as to be vertically rotatable. The fallable guide frame in a state where the kibble is supported is rotated downward by contraction of a cylinder around the support shaft as a fulcrum, and the kibble falls down around its own guide roller by rolling down the kibble. Kibble fall device. Below the rider receiver installed above the guide frame for overturning, a rope receiving sheep facing up and down steps with the kibble rope interposed therebetween is installed so as to be able to advance and retreat, and the rider supports the rider receiver on the rider receiver. 2. The device according to claim 1, wherein the sheep moves forward to hold the kibble rope when the kibble is guided to fall.

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