JP4091395B2 - Kibble overturning device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a tipping device for a kibble that lifts and falls a kibble mounted with a shear to a predetermined position of a cutting bar 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 suspended through a scaffold that is suspended in the shaft, and a kibble equipped with a shear is coupled to a rider. It is known that it is pulled up by a hoisting machine and falls down at a predetermined position on the cutting bar.
[0003]
Although this conventional method has the advantage that the speed of lifting the kibble is fast and can easily cope with the depth of excavation compared to the method of lifting using a guide rail, the direction of the kibble during the lifting is poor, so it is installed on the excavation rod. It was difficult to automatically guide to the falling device and to make it fall. Accordingly, since the worker is arranged at the fall position of the open cut bar and the kibble is prepared for fall by the hand of the person, there is a problem in ensuring the safety of the worker.
[0004]
In order to solve the above problem, in Japanese Patent No. 2936526, as shown in FIG. 10, a rider 50 is provided with a direction correcting device 51 for a kibble 54, and a pair of vertical vertices are provided at predetermined positions on the cutting bar 52, respectively. A means is disclosed in which a tipping device 53 comprising a guide rail 53a and a curved guide rail 53b is installed, the direction-corrected kibble 54 is lifted and received by the tipping device 53, and the tipping device falls in a predetermined direction along with the pulling operation. Yes.
[0005]
[Problems to be solved by the invention]
However, in order to cause the kibble 54 to fall by the above-mentioned means, the upper guide roller 55 for fall that is pivotally supported at the upper symmetrical position on the side of the kibble is pulled up to the curved guide rail 53b while the kibble 54 is pulled up to the cutting bar 52, and the lower part. The lower guide roller for overturning 56 pivotally supported at the symmetrical position must be guided to the overturning device 53 by being fitted to the vertical guide rail 53a. Therefore, in order for the guide rollers 55 and 56 at the four left and right sides of the rising kibble 54 to be simultaneously fitted to the guide rails 53a and 53b, a fitting error occurs even if the kibble 54 is slightly shaken or rotated. In addition, although the direction of the kibble 54 is corrected, the rider 50 in the middle of lifting is not supported, so that the kibble 54 in the middle of lifting is likely to be slightly shaken or rotated, and the guide roller 55 to the tipping device 53 is used. There was a concern that the smooth fitting of 56 and 56 would be hindered, resulting in work delays.
[0006]
The present invention has been made in view of the above-described 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 surely set at a predetermined position of the excavation rod so as to be automatically overturned.
[0007]
[Means for Solving the Problems]
The present invention provides a tipping device kibble for inverting the suspended by kibbles in kibble rope at a predetermined position of the upright has been cut and cover turret on shafts, shaft wear at the bottom center target position of the left and right outer surfaces of the kibble as the fall guide frame with guide rollers receiving support the kibble by fitted to Rukoto from above the guide rail portion of the bottom becomes the vertical rotation enabled by a support shaft provided at a predetermined position of the digging tower a pivotally supported, the pivot guide roller the kibble own by lowering winding the kibble causes downward pivoting by contraction of the cylinder the tipping guide frame while supporting the kibble as a fulcrum the shaft I tried to fall.
[0008]
In addition, a rope receiving sheep that is opposed to the upper and lower steps with the kibble rope in the center is installed below the rider receiver installed above the fall guide frame so as to be able to advance and retreat. When the kibble is guided to fall, the sheep moves forward to hold the kibble rope. Thereby, the descent of the kibble to the tipping guide frame is guided, and the movement of the kibble rope in the horizontal direction that occurs when the kibble falls is controlled.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the kibble overturning device of the present invention will be described below in detail with reference to the drawings.
[0010]
FIGS. 1 to 9 show an embodiment of the present invention, which is hung on an excavation rod 1 standing on a vertical shaft (not shown) and a kibble rope 11 of a hoisting machine (not shown). Kibble 10, a guide frame 20 that is pivotally supported at a predetermined position of the cutting rod 1 so as to receive and support the kibble 10 so as to fall down, and a rider installed above the guide frame 20 for fall The receiver 30 and the rope receiver sheep 35 and 36 opposite to each other disposed below the receiver 30 are substantially configured.
[0011]
The kibble 10 having a rectangular cross section for mounting the excavation shear has guide rollers 12 and 12 pivotally mounted at symmetrical positions in the lower center of the left and right outer surfaces, and can be rotated at the upper end where the guide rollers 12 and 12 are located. It is suspended from a hook 16 of a suspension fitting 13 at the tip of the kibble rope 10 via a handle 13 attached to the shaft.
[0012]
Reference numeral 15 denotes a swing that moves up and down between the excavation rod 1 and the scaffold with the kibble rope 11 as the center, using the suspension wire ropes 2 and 2 of the scaffold (not shown) suspended in the shaft. The rider is a stopping device, and is coupled with the hanging metal fitting 14 when the kibble 10 is raised and lowered to induce the kibble 10 to be raised and lowered, thereby preventing the kibble 10 from swinging and rotating.
[0013]
The overturning guide frame 20 has a frame portion 23 formed by assembling a steel aggregate in a substantially box shape that is open to the front and in the vertical direction so that the kibble 10 can be received. A pair of bottomed guide rail portions 21 and 21 each having an upward opening 22 into which 10 guide rollers 12 and 12 can be fitted are provided.
[0014]
The overturning guide frame 20 is arranged at the upper base end of the frame portion 23 at a predetermined interval at the center portion of the mounting beam 8 spanning in the orthogonal direction to the overturning guide frame 20 in the cutting bar 1. The two pivot brackets 3 are pivotally supported by the pivot shaft 7 as a fulcrum so as to be vertically rotatable.
[0015]
In addition, one end of a rod 26a of a cylinder 26 for driving overturning is attached to the center of the lower horizontal aggregate 24 in the guide frame 20 for overturning via a bracket 25, and the other rod 26b of the cylinder 26 is attached to the other end 26b. The bracket 5 is rotatably attached to the beam 4 for suspending the cylinder of the cutting bar 1.
[0016]
Further, the lower horizontal aggregate 24 of the frame portion 23 includes support arms 27 and 27 of the overturning guide frame 20 which are disposed on both sides of the overturning driving cylinder 26 and expand and contract following the expansion and contraction of the cylinder 26. One end is pivotally supported via brackets 28 and 28, and the other end is fixed to the cutting bar 1 so as to be rotatable via brackets 6 and 6.
[0017]
Accordingly, the overturning guide frame 20 suspended from the mounting beam 8 is supported by the support mechanisms 27 and 27 that expand and contract following the cylinder 26 by extending and contracting the cylinder 26, and the support shafts 7 and 7. Rotate vertically around the fulcrum.
[0018]
At a position further above the above-described overturning guide frame 20 installed on the cutting bar 1, a rider receiver 30 that supports the rider 15 that has moved up with the kibble 10 when guiding the overturning of the 10 is installed by a cylinder 30a. Has been.
[0019]
Further, on the mounting bases 37 and 38 located below the rider receiver 30, rope receiving sheep 35 and 36 facing the upper and lower steps with the kibble rope 11 in the center can be advanced and retracted by the cylinders 39 and 39. is set up. The sheep 35 and 36 move forward from the retracted position to hold the kibble rope 11 when the kibble 10 with the rider 15 supported by the rider receiver 30 falls, and the kibble 10 descends to the tipping guide frame 20. To induce. In addition, the movement of the kibble rope 11 that is generated when the kibble 10 falls is controlled by receiving the force in the horizontal direction of the kibble rope 11.
[0020]
Next, the overturning operation of the kibble in the present embodiment will be described. When the kibble 10 loaded with the shear is pulled up from the shaft bottom to the excavation rod 1 by hoisting the kibble rope 11 with a hoisting machine, as shown in FIG. In addition, the overturning guide frame 20 is retracted to the retracted position in the opener 1 by contracting the cylinder 26 so as not to obstruct the passage of the kibble 10.
[0021]
As shown in FIG. 5, when the rider 15 coupled 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 is extended and the tipping guide frame 20 is raised and rotated to a position below the kibble 10 in order to receive the kibble 10.
[0022]
Next, as shown in FIG. 6, the rider 15 is supported by the rider receiver 30 that has moved forward by lowering the kibble rope 11, and the suspension bracket 14 is separated from the rider 15 and lowered together with the kibble 10 and moved up and down. The sheeps 35 and 36 move 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 over a short distance to the tipping guide frame 20. The guide rollers 12 and 12 of the kibble 10 are easily fitted in the openings 22 and 22 of the guide rail portions 21 and 21 of the guide frame 20 for falling. Even if the position of the kibble 10 is slightly displaced in the front-rear direction when the kibble 10 is toppled, the opening guide frames 20 and 22 are moved in the front-rear direction by turning the overturning guide frame 20. Therefore, it is very easy to fit the guide rollers 12 and 12 into the openings 22 and 22 of the guide rail portions 21 and 21 in conformity.
[0024]
As shown in FIG. 7, when the cylinder 26 is further extended and the overturning guide frame 20 is rotated to a substantially horizontal position, the guide rollers 12 and 12 of the kibble 1 are guided to the guide rail portion 21, and the guide roller 12 , 12 reaches the bottom 21a of the guide rail portions 21 and 21, and the kibble 10 is wound down.
[0025]
Then, as shown in FIG. 8, by contracting the cylinder 26, the overturning guide frame 20 that received the kibble 10 is lowered and rotated, and as shown in FIG. 9, the kibble 10 is further lowered, The kibble 10 falls forward with its guide rollers 12 and 12 as fulcrums, and releases the mounted shear. In addition, since the position of the fulcrum of the guide roller 12 can be changed in the front-rear direction by adjusting the degree of expansion / contraction of the cylinder 26, it is also possible to finely adjust the discharge position of the shear by changing the fall position of the kibble 10. Is possible.
[0026]
When the kibble 10 falls, a force in the horizontal direction is applied to the kibble rope 11, but the sheep 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 shearing is pulled up to escape from the overturning guide frame 20, and the overturning guide frame 20 is retreated to the retreat position again. The rider receiver 30 and the rope receiving sheep 35 and 36 are also retracted to the retracted position. The rider 15 is coupled to the hanging bracket 14 and the kibble 10 is unwound on the vertical shaft for loading excavation.
[0028]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0029]
Conventionally, when guiding the kibble to the overturning device, the four guide rollers of the kibble are fitted and matched with the four guide rails fixed to the open cut rod, in the present invention, Since the two guide rollers of the kibble need only be fitted and fitted to the two guide rail portions of the overturning guide frame that can be adjusted and moved, the matching fit of the guide rollers during the overturning guide can be facilitated.
[0030]
In addition, when the kibble is toppled, the rider is supported and the kibble rope is held by the sheep facing the upper and lower steps to guide the kibble to the tipping guide frame for a short distance. The opening of the guide rail portion in the guide frame can be matched with each other very easily, and a fitting error at the time of overturning can be prevented.
[0031]
Further, when the kibble falls, the sheep receives a horizontal force applied to the kibble rope, so that the rider can be prevented from being damaged by the kibble rope and the rider can be slimmed.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a kibble overturning device of the present invention.
FIG. 2 is a front view of the overturning device of FIG.
3 is an enlarged front view showing a rider, a kibble, and a fall guide frame in the fall device of FIG. 1. FIG.
4 is a side view showing an operating state of the overturning device of FIG. 1. FIG.
FIG. 5 is a side view showing an operating state of the overturning device of FIG. 1;
6 is a side view showing an operating state of the overturning device of FIG. 1. FIG.
7 is a side view showing an operating state of the overturning device of FIG. 1. FIG.
8 is a side view showing an operating state of the overturning device of FIG. 1. FIG.
9 is a side view showing an operating state of the overturning device of FIG. 1. FIG.
FIG. 10 is a side view showing a conventional example.
[Explanation of symbols]
1 Opening rod, 10 Kibble, 11 Kibble rope, 12 Guide roller, 20 Overturn guide frame, 21 Guide rail part, 26 Cylinder, 30 Rider support, 35 Sheep, 36 Sheep,

Claims (2)

In a kibble overturning device for overturning a kibble suspended from a kibble rope at a predetermined position of a digging rod erected on a vertical shaft, a guide roller pivotally attached to a lower center target position on the left and right outer surfaces of the kibble tipping guide frame for receiving supporting the kibble by fitted to Rukoto from above into the guide rail portion of the bottomed, is supported so as to be vertical rotation enabled by a support shaft provided at a predetermined position of the digging tower The tipping guide frame in a state where the kibble is supported is rotated downward by contraction of the cylinder with the supporting shaft as a fulcrum, and the kibble falls over the guide roller with its own guide roller by rolling down the kibble. A unique kibble overturning device.   Below the rider receiver installed above the fall guide frame, a rope receiver sheep facing the top and bottom of the kibble rope is installed so as to be able to advance and retreat, and the rider supports the rider receiver. 2. The kibble overturning device according to claim 1, wherein the sheep moves forward to hold the kibble rope when the kibble overturns are guided.

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