JP4027628B2 - Kibble replacement method in shaft excavation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kibble exchanging method in which two excavators are used by exchanging alternately in order to carry out excavation shears from a shaft, and the exchanging operation of kibbles can be performed safely, easily and quickly on a scaffold. The present invention relates to a kibble exchanging method in shaft excavation that can be performed.
[0002]
[Prior art]
As this type of prior art, there are kibble replacement methods disclosed in, for example, Japanese Patent Application Laid-Open No. Sho 62-25893 and Japanese Patent Application Laid-Open No. Hei 11-294063. There are advantages such that the interruption work can be reduced and the projecting operation can be performed efficiently, and various equipment such as a kibble hoisting machine can be small and inexpensive.
[0003]
In the former prior art, a turntable having a kibble passage hole and rotating between the first position and the second position is provided on the lower deck of the scaffold and the first hoisting machine is provided on the ground. A second hoist is provided below the middle deck, and the kibble replacement operation is performed with one kibble (actual kibble) and the other kibble (empty kibble) placed on the turntable.
[0004]
In this prior art, one kibble is transferred between the ground and the first position by the first hoist, and the other kibble is transferred between the bottom part and the second position by the second hoist. The suspension hooks of the first hoisting machine and the second hoisting machine are replaced with one kibble and the other kibble placed on the turntable, and the turntable is rotated to move the first position and the second kibble. Kibble replacement work is performed by rotating between positions.
[0005]
In the latter prior art, a slide table is provided on the lower deck of the scaffold to move horizontally between the replacement position and the retracted position, close the kibble passage hole at the replacement position, and release the kibble passage hole at the retract position. At the same time, a second hoisting machine that horizontally moves between an exchange position and a retracted position along the traveling rail is provided below the middle deck, and a first hoisting machine is provided on the ground.
[0006]
In this prior art, the actual kibble at the bottom of the well is transferred to the ground by the first hoisting machine, and the empty kibble in the retreat position is transferred to the second hoisting machine until it is returned to the first position by the empty kibble. After moving from the kibble passage hole to the bottom of the shaft, the slide table is returned to the exchange position, and the empty kibble returned from the ground is placed. From the first hoisting machine to the second hoisting machine In addition to replacing the hanging hooks, the kibble replacement work is performed by moving the slide table to the retracted position.
[0007]
[Problems to be solved by the invention]
In these prior arts, the hanging hook for the kibble hanging handle is replaced between two hoisting machines. This replacement operation is performed on a turntable or a slide table provided on the scaffold. Therefore, it was difficult to work safely and easily and quickly.
[0008]
That is, in the conventional technique, the turntable or slide table occupies a large area on the lower deck of the scaffold, and the turntable or slide table is rotated or slid. There is a possibility that the behavior of the worker who performs other work is restricted, and the improvement of work efficiency and the securing of safe work may be impaired.
[0009]
In the former prior art, an actual kibble load is applied to the scaffold, so it is possible to downsize the scaffold hoist and carry out a large amount of shear at once using a relatively large kibble. There also existed problems, such as being difficult and having to perform attachment / detachment operation of the hanging hook with respect to a kibble frequently.
[0010]
In the latter prior art, since the slide table and the second hoisting machine are used together and moved horizontally between the exchange position and the retreat position, the operation is complicated and the kibble suspended from the bottom of the pit is suspended. Since the hanging handle is not constant, there is a problem that the attaching / detaching operation is not easy unless an expert is used even if an automatic hook is used.
[0011]
Therefore, in the present invention, there are few interruptions in the stacking work, which is an advantage of the replacement kibble method according to the prior art, and the work efficiency is good, and various facilities such as a kibble hoisting machine can be small and inexpensive. An object of the present invention is to provide a kibble method in shaft excavation that solves the above-described problems and makes it possible to perform the kibble replacement work on the scaffold safely, easily and quickly.
[0012]
[Means for Solving the Problems]
The kibble exchanging method in the shaft excavation according to the present invention includes a kibble lowering step of lowering an empty kibble from an overhanging position on the ground to a changing position in the scaffold by a kibble suspension means having a hoist installed on the ground. empty kibble that drops to the hanging repositioned from the kibble suspending means, the kibbles moving means in which the beam member to hoist is installed with a curved portion in the center with provided movably on said scaffold, suspension A kibble suspending step of suspending in the suspended state, a kibble evacuation step of transferring the suspending empty kibble from the suspending position to the evacuating position side of the suspending position by the kibble moving means , and the kibble moving means, the empty kibble that is transferred to the retracted position, and transported via the suspended repositioned from the retracted position to the shear loading position of the vertical shaft bottom, front The kibble installation step for releasing the kibble from the suspension of the kibble moving means, and the actual kibble loaded with the shear by the loading means are suspended by the kibble suspension means and from the shear loading position to the projecting position. And a kibble winding step for raising .
[0013]
According to this kibble exchanging method, while one of the kibbles is being slid out, the other kibble is continuously piled up, so that the work efficiency is the same as in the case of the prior art kibble exchanging method. Well, do not place or move the actual kibble on the scaffold, do not apply a large load, downsize the scaffolding machine, or carry out a large amount of shear at once using a relatively large kibble Is possible.
[0014]
In particular, the work of replace the suspension of empty kibble from kibble suspension means kibble moving means, by performing remain suspended state in the servant position, it requires the use of a turntable or sliding table as in the prior art As a result, there is a large work area on the lower deck of Scaffold, and there is no restriction on the behavior of workers performing kibble replacement work or other work, so it is expected to improve work efficiency and secure safe work. be able to.
[0015]
In the kibble exchanging method, the replacing work is performed by suspending the hanging hook of the kibble hanging means on the hanging handle on the upper part of the kibble and hanging the hanging ring of the kibble moving means on the hanging hook on the side of the kibble. After locking, the kibble is released from the suspension of the kibble suspension means, and the kibble is suspended by the kibble moving means.
[0016]
According to this kibble exchanging method, the kibble is suspended by the kibble suspension means and is engaged with the kibble moving means, and the turntable and slide table are obstructed on the scaffolding around the kibble. Since there is nothing to do, the worker can easily and quickly perform the replacement work from a free position.
[0017]
In the kibble exchanging method, the kibble suspending means is configured to attach and detach a connection receiver provided on the suspension rope by a pulling operation of a control rope and a connection tool connected to the suspension hook, and to include the suspension rope. receptacle side hanging connector side and in comprising a detachable control unit separable including hooks, and in the kibble installation process, by separating the connector side and the connecting receptacle side by pulling operation of the control rope The kibble can be released from the suspension of the kibble suspension means.
[0018]
According to this kibble exchanging method, the kibble can be easily and quickly released from the suspension of the kibble suspension means by the pulling operation of the control rope, and can be replaced with the kibble suspension state by the kibble moving means.
[0019]
In the kibble installation step in the kibble replacement method, the hanging ring to relax hanging chain is Tsunagigi, by automatically dropping hanging hanging ring engaged with the hook of the kibble side, the kibble mobile It is possible to take the form of releasing the kibble from the suspension of the means .
[0020]
According to this kibble exchanging method, the operator can easily and safely install it at the stacking position only by hanging the empty kibble with the kibble moving means without going down to the bottom of the well and performing the exchanging work. When transported to the ground as an actual kibble later, the coupling side of the kibble suspension means locked to the hanging handle functions effectively.
[0021]
Wherein in the said muck step in kibble replacing the kibble and connector side of the kibbles suspension means said is engaged in lifting handle real kibbles in a loading position, wherein the kibble lodged in position the kibble suspension and a coupling receptacle side means, by connecting the control rope is Tsunagigi to the connector side and the coupling receptacle side by traction on the scaffold, the actual kibble the kibble suspension means It is possible to adopt a form of hanging by .
[0022]
According to this kibble replacement method, the operator can pull down the control rope provided on the attachment / detachment control unit on the scaffold without performing the replacement work by descending to the bottom of the well, so that even a non-expert operator can connect. The connector can be quickly and reliably connected to the receiver, and the actual kibble can be transferred to the ground by the kibble suspension means.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a kibble exchanging method in shaft excavation according to the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment. FIG. 1 is a front view of a shaft excavation facility to which the present invention is applied, and FIG. FIGS. 3 to 5 are explanatory views showing the automatic attaching / detaching operation of the hanging hook in the kibble hanging means, FIG. 6 is a front view of the kibble moving means, FIG. 7 is a plan view thereof, and FIG. FIG. 9 to FIG. 14 are explanatory diagrams of kibble replacement operation performed using the apparatus of the present invention.
[0024]
As shown in FIGS. 1 and 2, the shaft excavation facility enables the scaffold 4 suspended in the shaft 3 with the rope 2 wound around the sheave 1 to be moved up and down by the operation of the ground hoist. The lining concrete 6 cast on the inner surface of the excavation using the movable mold 5 can be locked and held by a plurality of grippers 7 that expand and contract in the horizontal direction. The scaffold 4 includes an upper deck 8 and a middle deck. 9 and the lower deck 10 is composed of three decks.
[0025]
On the scaffold 4, an elevator platform 12 for an elevator 11 for a worker suspended from the ground, a ladder 13 for moving the worker between the decks and to the bottom of the deck, a hopper 14 for performing concrete placing work, and turning Necessary equipment such as a chute 15 and a shaft macker which is a shear loader 16 are mounted.
[0026]
Two kibbles 17 (17A and 17B) are prepared for sliding out, and in order to secure a protruding path where the kibbles 17A and 17B reciprocate between the ground and the ground, notch-shaped kibbles are provided on each deck of the scaffold 4. A through hole 18 is provided, a suspension position X and a retracting position Y are provided between the middle deck 9 and the lower deck 10, and a pile position Z where the kibbles 17A and 17B are alternately placed on the bottom of the well. but it is set directly below the servant position X on the muck passage.
[0027]
Summary of muck work, one of the kibble 17B to a shear loading position Z in real kibble state suspended in kibble suspension means 19, back to the lodged position X empty kibble state after the muck went to ground However, in the meantime, the other kibble 17A in the empty kibble state at the retracted position Y is suspended by the hoisting machine 21 of the kibble moving means 20, moved to the suspending position X, and then moved to the stacking position Z. Is repeated.
[0028]
As shown in detail in FIGS. 3 to 5, the kibble suspension means 19 is suspended by an upper end side of a suspension hook 22 that is locked and held by the suspension handle 23 of the kibble 17 and a ground kibble hoist (not shown). The lower end side of the formed kibble rope 24 can be detachably connected by a male connection tool 25 and a female connection receiver 26, and the connection tool 25 is connected to the hanging hook 22 via a relay rope 27 and a rope fixing tool 28. The connection receiver 26 is attached to the kibble rope 24 via a rope fixing device 29.
[0029]
The connecting tool 25 has a spindle shape with an intermediate portion bulged, and a control rope 30 that is manually pulled from the scaffold 4 is connected to the upper end side, and an attachment / detachment tool 31 is provided in the middle of the control rope 30. The control rope 30 can be separated into an upper side (30 a) for towing operation and a lower side (30 b) where the connection receiver 26 and the suspension hook 22 are provided.
[0030]
The connecting receptacle 26 includes a cylindrical receptacle body 26a whose lower end side is gradually reduced in diameter, a slide cotter 26b formed by a plurality of (in the drawing, three divisions) arcuate wedge pieces, and an upper end of the receptacle body 26a. The control rope 32 which is manually pulled is connected to each wedge piece of the slide cotter 26 b, and the connection part 26 c is connected to the rope fixing tool 29.
[0031]
The kibble suspending means 19 is connected to the rope fixing tool 29 through the connecting part 26c, and the connection receiving tool 26 is attached to the kibble rope 24 which is supported by the rider receiver 33 fitted to the rope fixing tool 29. The connector 25 accommodated in the connector receiver 26 is nipped and held by each wedge piece of the slide cotter 26b which is in a reduced diameter state at the lowered position. (Figure 3)
[0032]
From the state shown in FIG. 3, when the control rope 30 is pulled to pull up the connector 25 and the control rope 32 is pulled up, the slide cotter 26b is lifted along the taper surface in the receiver body 26a, and the slide cotter 26b is lifted. The diameter is expanded at the position (FIG. 4), and when only the control rope 30 is loosened in this state, the connector 25 falls out of the connection receiver 26 (FIG. 5).
[0033]
Thereby, the kibble suspension means 19 includes the rope fixing tool 29 connected to the connection receiver 26, the suspension means upper side by the suspension rope 24 and the control rope 32, the relay rope 27 connected to the connection tool 25, and the rope. The fixture 28 can be separated from the suspension means 22 and the lower side of the suspension means by the control rope 32.
[0034]
The kibble suspension means 19 is always connected to a hoisting machine provided on the ground with the upper part of the suspension means via a kibble rope 24, and the lower part of the suspension means is connected to each of the two kibbles 17A and 17B via a suspension hook 22. Each of them is always connected, and when the replacement kibble is performed, the replacement work on the lower side of the suspension means is performed on the upper side of the suspension means.
[0035]
In the replacement work on the lower side of the suspension means, the control rope 30 on the lower side of the suspension means that has suspended the empty kibble 17A is pulled out from the connection receiver 26 in the state of FIG. 5, and the actual kibble 17B is suspended. The control rope 30 on the lower side of the suspension means is inserted into the connection receiver 26. In order to easily perform this operation on the lower deck 10, the upper end side of the control rope 30 of the actual kibble 17B is the lower deck. 10 is locked in place.
[0036]
As shown in detail in FIGS. 6 and 7, the kibble moving means 20 includes a guide rail 34, a moving beam member 35, and a hoisting machine 21, and the guide rail 34 is formed of an I beam, H-shaped steel, or the like, Two are attached to the lower surface side of 9 in parallel.
[0037]
A travel roller 37 is pivotally attached to the moving beam member 35 on the upper surface at both ends in the longitudinal direction via mounting brackets 38. The travel roller 37 is rotated along the guide rail 34 by the rotational drive of the motor 36 with a speed reducer. The driving roller 37 </ b> A moves and the driven roller 37 </ b> B rolls while being guided by the guide rail 34.
[0038]
The moving beam member 35 is equipped with a hoisting machine 21 on the lower surface side of the intermediate portion in the longitudinal direction, and a hoisting ring 40 is provided at the tip of the hoisting chain 39 fed out from the hoisting machine 21. The hanging hook 41 provided adjacent to the base of the hanging handle 23 can be attached and detached.
[0039]
The central portion of the moving beam member 35 in the longitudinal direction is provided with a curved portion 35a that is curved toward the retracted position Y in order to avoid interference with the kibble rope 24 that passes through the center of the kibble passage hole 18.
[0040]
The kibble moving means 20 moves from the hoisting machine 21 to the kibble 17 that has returned to the suspending position X in the empty kibble state, with the hanging hook 22 locked to the hanging handle 23 and suspended by the kibble rope 24. The suspension chain 39 is unwound and the suspension ring 40 is engaged with the suspension hook 41. Thus, after the kibble 17 is suspended, the engagement of the suspension hook 22 with the suspension handle 23 is released.
[0041]
The suspension hook 22 is released from the suspension handle 23 by pulling the control ropes 30 and 32 of the kibble suspension means 19 by the operator on the lower deck 10 as described above. The kibble 17 released from the suspension is suspended by the kibble moving means 20 and can move horizontally between the retracted position Y along the guide rail 34 by the rotational drive of the motor 36 with a speed reducer.
[0042]
FIG. 8 shows the detachable state of the kibble moving means 20 and the kibble 17, but the operation of locking the suspension ring 40 to the suspension hook 41 is performed on the lower deck 10 at the suspension change position X as shown in FIG. The operator performs the work of releasing the suspension ring 40 with respect to the suspension hook 41 when the suspension chain 39 is further extended and the kibble 17 is landed at the stacking position Z as shown in FIG. Is released.
[0043]
As described above, the kibble exchanging device is configured with the kibble suspending means 19 and the kibble moving means 20 as the main parts, and two kibbles 17 (17A and 17B) are mounted on the scaffold 4 using the kibble exchanging device. The operation is carried out while exchanging kibbles by operation, and the construction procedure will be described with reference to FIGS.
[0044]
In each of these drawings, one kibble 17A is in an empty state (hereinafter referred to as empty kibble 17A), and the other kibble 17B is loaded (hereinafter referred to as actual kibble 17B). Control ropes 30 and 32 including a hanging hook 22 and a connecting tool 25 are connected to the hanging handle 23, respectively.
[0045]
In step 1 of Figure 9, air kibble 17A which has returned from the ground, is suspended in Kibururopu 24 via the kibble suspension means 19 is in the choked position X on the muck passage, kibble moving means 20 is shear The actual kibble 17B is in the shelving position Z directly below the suspension position X.
[0046]
In Step 2 of Figure 10, showing a state horizontally moving the kibble moving means 20 suitable for the retreat position Y to the servant position X, in step 3 of Figure 11, with respect to air kibble 17A is moved to the lodged position X The state where the suspension ring 40 of the kibble moving means 20 is locked to the suspension hook 41 while the suspension of the empty kibble 17A by the kibble suspension means 19 is continued as it is is shown.
[0047]
In the procedure 4 of FIG. 12, after the suspension of the empty kibble 17A by the kibble suspension means 19 is released by the pulling operation of the control ropes 30 and 32, the empty kibble 17A suspended by the kibble moving means 20 is moved to the retracted position Y. 13 shows the state of horizontal movement. In step 5 of FIG. 13, the suspension hook 22 of the kibble suspension means 19 suspended from the bottom of the well is engaged with the suspension handle 23 of the actual kibble 17B at the stacking position Z. Shows the state.
[0048]
The actual kibble 17B in FIG. 13 is transported to the ground along the projecting path in a state where it is suspended by the kibble suspension means 19 by hoisting the kibble rope 24 with a hoist installed on the ground. returning the lodged position X empty kibble state as in step 1 of Figure 9 after performing, but as in Step 6 of FIG. 14 in the meantime, the other kibble 17A shear loading position Z in the retracted position Y Install in.
[0049]
In step 6 of FIG. 14, the kibble 17A is suspended by the hoisting machine 21 of the kibble moving means 20, moved to the suspending position X, and then moved to the stacking position Z, but after the kibble 17A has landed on the bottom of the pit. When the suspension chain 39 is further extended, the suspension ring 40 is automatically detached from the suspension hook 41 as shown in FIG. 8B, and then the kibble moving means 20 is returned to the retracted position Y as shown in step 1 of FIG. .
[0050]
In addition, the empty kibble 17A moved to the shearing position Z is subjected to a shearing operation by the shearing machine 16 as a new actual kibble. In addition, the suspension hook 22 of the kibble suspension means 19 in FIG.
[0051]
As described above, in this kibble exchanging method, the kibble 17B at the stacking position Z in the bottom of the well is suspended by the hoist installed on the ground via the kibble passage hole 18 of the scaffold 4 on the protruding passage. A series of repetitive operations are performed in which the kibble 17A that has been retracted by the scaffold 4 is suspended to the bottom of the well and the kibble 17B that has returned from the ground is retracted by the scaffold 4.
[Brief description of the drawings]
FIG. 1 is a front view of a shaft excavation facility to which a kibble exchanging method according to the present invention is applied.
FIG. 2 is a right side view of a shaft excavation facility to which a kibble exchanging method according to the present invention is applied.
FIG. 3 is an explanatory view showing an automatic attachment / detachment operation of a suspension hook in a kibble suspension means which is a main part of the present invention.
FIG. 4 is an explanatory view showing an operation of automatically attaching and detaching a hanging hook in a kibble hanging means which is a main part of the present invention.
FIG. 5 is an explanatory view showing an automatic attaching / detaching operation of a hanging hook in a kibble hanging means which is a main part of the present invention.
FIG. 6 is a front view of a kibble moving means as a main part of the present invention.
FIG. 7 is a plan view of the kibble moving means as the main part of the present invention.
FIG. 8 is an explanatory view showing a state where the kibble moving means and the kibble are attached and detached, which is a main part of the present invention.
FIG. 9 is an explanatory diagram of an operation procedure 1 of kibble exchange using the kibble exchange method of the present invention.
FIG. 10 is an explanatory diagram of an operation procedure 2 of kibble exchange using the kibble exchange method of the present invention.
FIG. 11 is an explanatory diagram of an operation procedure 3 for kibble exchange using the kibble exchange method of the present invention.
FIG. 12 is an explanatory diagram of an operation procedure 4 for kibble exchange using the kibble exchange method of the present invention.
FIG. 13 is an explanatory diagram of an operation procedure 5 for kibble exchange using the kibble exchange method of the present invention.
FIG. 14 is an explanatory diagram of an operation procedure 6 of kibble exchange using the kibble exchange method of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sheep 2 Rope 3 Vertical shaft 4 Scaffold 5 Mobile form 6 Covering concrete 7 Gripper 8 Upper deck 9 Middle deck 10 Lower deck 11 Elevator 12 Lift platform 13 Ladder 14 Hopper 15 Turning chute 16 Shear loader (shaft mucker)
17 Kibble (17A, 17B)
18 Kibble through hole 19 Kibble suspension means 20 Kibble moving means 21 Winding machine (chain block)
22 Hanging hook 23 Hanging pattern 24 Kibble rope 25 Connecting tool (male)
26 Linkage (female)
27 Relay rope 28 Rope fixing tool 29 Rope fixing tool 30 Control rope 31 Detachment tool 32 Control rope 33 Rider receiver 34 Guide rail 35 Moving beam member 36 Motor 37 with speed reducer 37 Traveling roller 38 Mounting bracket 39 Suspension chain 40 Suspension ring 41 Suspension hook X Suspension position Y Retraction position Z Stacking position

Claims (5)

In a shaft excavation in which a scaffold is arranged so as to be movable up and down in the shaft, and the pile loaded in the kibble at the bottom of the shaft is carried to the ground, a kibble replacement method for alternately using two kibbles,
A kibble lowering step for lowering an empty kibble from a projecting position on the ground to a suspension changing position in the scaffold by a kibble suspension means having a hoist installed on the ground,
Empty kibble that drops to the hanging repositioned from the kibble suspending means, the kibbles moving means in which the beam member to hoist is installed with a curved portion in the center with provided movably on said scaffold, suspension A kibble suspending process for suspending in a suspended state ;
A kibble evacuation step of transferring the suspended empty kibble from the suspending position to a evacuation position on the side of the suspending position by the kibble moving means ;
The empty kibble transferred to the retracted position by the kibble moving means is transferred from the retracted position to the shear loading position at the bottom of the shaft through the suspension position, and the kibble is released from the suspension of the kibble moving means. Kibble installation process to
A kibble hoisting step of suspending the actual kibble loaded with the shear by the loading means by the kibble suspension means and raising the actual kibble from the shear loading position to the sliding position;
A kibble exchange method characterized by comprising: The kibble suspension means, and suspended by engaging the hanging hook hanging handle kibble top,
The kibble moving means may be suspended by engaging the hanging ring hanging hook kibble sides, kibbles exchange method according to claim 1. The kibble suspension means, by Rukoto is detachable and linked coupling to the hanging hook and the coupling receptacle provided in the suspension rope by pulling operation of the control cables, connecting the receptacle containing the suspension rope An attachment / detachment control unit separable into a side and a connector side including the suspension hook;
Wherein in the kibble installation process, by separating the connector side and the connecting receptacle side by traction of the control cables, characterized in that to release the kibble from suspension of the kibble suspension means, claim The kibble exchange method according to 2. Wherein in the kibble installation process step, the hanging ring to relax hanging chain is Tsunagigi, by automatically dropping the hanging ring engaged with the hanging hook of the kibble side, suspension of the kibble moving means The kibble changing method according to claim 3 , wherein the kibble is released . Wherein in the kibble winding step, the connector side of the kibbles suspension means said is engaged in real kibble hanging pattern in the kibble loading position, coupling receptacle of the kibbles suspension means in said kibble lodged position a side, by linking the control rope is Tsunagigi to the connector side and the coupling receptacle side by traction on the scaffold, be suspended the actual kibble by the kibble suspension means The kibble exchanging method according to claim 3 or 4 , characterized in that :

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