JP4427209B2 - Kibble changer for shaft excavation equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a kibble exchanging apparatus that uses a plurality of kibbles equipped for carrying out excavated shears from a shaft and alternately exchanging them by operating on a scaffold. The present invention relates to a kibble changer which can be easily and safely performed on Ford.
[0002]
[Prior art]
As a conventional technique for projecting using a kibble, a kibble in which multiple (usually two) kibbles are used alternately is used so that one kibble performs the stacking operation with the other kibble during the projecting operation. There are an exchange method and a one-kibble method in which one large-sized kibble having a large capacity is not used to replace the kibble.
[0003]
[Problems to be solved by the invention]
In the case of the kibble exchange method, there is an advantage that the work efficiency is good because it is continuously carried out with few interruptions of the stacking work, but the equipment for performing the kibble exchange is necessary, and the kibble exchange work is a skillful work. There was a problem such as requiring an expert.
[0004]
In particular, moving the kibble rope laterally on the scaffold and moving the suspension position, or descending to the bottom of the well and manually changing the hanging hook to the kibble, will improve work efficiency and ensure safety work. Improvement was also desired from this point.
[0005]
In the case of the 1 kibble system, there is an advantage that an apparatus for exchanging the kibble is unnecessary, and there is an advantage that a skilled worker is not required for the kibble operation. However, there are problems such as an increase in equipment costs and an increase in the suspension time for each pile as the shaft depth increases, resulting in a reduction in work efficiency.
[0006]
Therefore, the present invention improves the above-mentioned problems while taking advantage of the conventional kibble exchanging method, and is a shaft excavation facility that can easily and safely perform kibble exchanging work on the scaffold even if it is not a skilled worker. Provide a kibble changer.
[0007]
[Means for Solving the Problems]
A kibble exchanging device for a shaft excavation facility according to the present invention engages with a kibble rope between the exchanging position on the projecting passage and the upper side of the first or second shearing position set at the bottom of the shaft. And a kibble suspension means provided with a connection receiver in the middle of the kibble rope having a suspension hook attached to the tip, and the connection side is previously provided via the suspension hook. In addition to connecting to each kibble to be exchanged, an attachment / detachment control unit is provided between the connection tool and the connection receiver for operating or disconnecting the control rope from above the scaffold.
[0008]
In this kibble exchanging device, while the extruding operation is continuously performed with one kibble, the accumulating operation is continuously performed with the other kibble, so that the work efficiency is the same as in the case of the conventional kibble exchanging method described above. In addition to exerting other effects, it is possible to easily move the position where the kibble is suspended by the kibble rope from above the scaffold between the exchange position and the stacking position on the sliding path.
[0009]
In particular, since all of the kibble replacement work is performed on the scaffolding without the operator getting down to the bottom of the well and performing the replacement work, the work efficiency can be improved and the safety work can be secured. Since the actual kibble is not placed or moved, a large load is not applied, the scaffold winding machine can be downsized, and the operator's work space on the scaffold can be secured widely.
[0010]
The kibble suspending means in the kibble exchanging device has a cylindrical shape in which the lower end side is gradually reduced in diameter, and a connection receiver fitted with a slide cotter that expands and contracts by moving up and down on the inner periphery, and a slide cotter fitted in the connection receiver A spindle-shaped coupling tool to be attached and detached, and one control rope suspended by a hoisting device are connected to the upper end side of the coupling tool, and the other control rope to be manually pulled up is connected to the upper end side of the slide cotter. The attachment / detachment control unit is provided, and an attachment / detachment tool for separating the rope up and down is provided in the middle of one control rope.
[0011]
In this kibble changer, by operating each control rope provided on the attachment / detachment control unit on the scaffold, the connection tool can be quickly and reliably detached from the connection receiver even if it is not a skilled worker. The kibble can be exchanged easily, and the kibble suspension means can be provided at a low cost with a simple configuration.
[0012]
The rope moving means in the kibble exchanging device is provided with a rope guide portion that engages with the kibble rope at the distal end, a pivot arm pivotally supported on the scaffold on one end, and one end connected to the proximal end side of the pivot arm, It is possible to adopt a form provided with a turning jack for turning the turning arm by extending and retracting the rod, and a raising / lowering jack for raising and lowering the rope guide portion attached to the distal end side of the turning arm and adapting to the moving direction of the suspension point. .
[0013]
In this kibble changer, the suspension point (suspension position) of the kibble rope can be easily and safely moved between the exchange position and each stacking position by operating the turning jack and the raising and lowering jack on the scaffold. In addition, the rope moving means can be provided at a low cost with a simple configuration.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Below, the kibble exchanging device for shaft excavation equipment 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 the shaft excavation equipment to which the present invention is applied, and FIG. FIGS. 3 to 5 are diagrams for explaining the operation of the kibble suspension means as the main part, FIGS. 6 to 7 are diagrams for explaining the operation of the rope moving means as the main part, and FIGS. 8 to 10 use the apparatus of the present invention. It is operation explanatory drawing of the kibble exchange implemented.
[0015]
The shaft excavation equipment allows the scaffold 4 suspended in the shaft 3 with the rope 2 wound around the sheave 1 to be moved up and down by operating the hoist on the ground, and the inner surface of the excavation using the movable mold 5 The lining concrete 6 placed on the upper side can be locked and held by a plurality of grippers 7 extending and contracting in the horizontal direction. The scaffold 4 is a three-stage deck of an upper deck 8, a middle deck 9, and a lower deck 10. It is configured.
[0016]
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.
[0017]
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. The first and second stacking positions Y and Z on which the kibbles 17A and 17B are alternately mounted are set in advance on both sides of the replacement position X on the protruding passage. ing.
[0018]
The kibble 17 is suspended by the kibble suspension means 19 at the exchange position X on the slide-out passage, and the suspension position (hanging point) of the kibble 17 is set at the exchange position X and the first stacking position Y or the second position. In order to move to the stacking position Z, the lower deck 10 is provided with a rope moving means 20, and the kibble suspension means 19 and the rope moving means 20 constitute the main part of the kibble changer.
[0019]
The kibble suspending means 19 has a male connector 25 and a female connector on the upper end side of the suspension hook 22 to be held and held by the suspension handle 21 of the kibble 17 and the lower end side of the kibble rope 24 suspended from the ground. The connecting tool 25 is attached to the suspension hook 22 via a relay rope 27 and a rope fixing tool 28, and the connecting receiver 26 is attached to the kibble rope 24 via a rope fixing tool 29.
[0020]
The connecting tool 25 has a spindle shape with a bulged middle portion, and a control rope 30 suspended by a hoisting device 23 (23A) such as an electric hoist is attached to the upper end side of the connecting tool 25, and the connecting tool is operated by operating the hoisting device 23A. 25 can be moved up and down, and attachment / detachment tools 31 and 40 are provided in the middle of the control ropes 30 and 32 so that the control ropes 30 and 32 can be separated vertically from the connection tool 25 and the connection receiver 26.
[0021]
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. Are connected to each wedge piece of the slide cotter 26b by a hoisting device 23 (23B) such as an electric hoist or a control rope 32 that is manually pulled up, and the connecting portion 26c is a rope. It is connected to the fixing tool 29.
[0022]
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)
[0023]
From the state shown in FIG. 3, when the hoisting device 23A is hoisted and the control rope 30 is tensioned to pull up the connector 25, and when the control rope 32 is pulled up by the hoisting operation or manual operation of the hoisting device 23B, The slide cotter 26b is pulled up along the taper surface, and the diameter of the slide cotter 26b is expanded at the raised position. (Fig. 4)
[0024]
From the state of FIG. 4, when the hoisting device 23 </ b> A is rewound to loosen only the control rope 30, the connector 25 is structured to drop out from the connector receiver 26 (FIG. 5), and includes these detachable tools 31. The control rope 30 and the hoisting device 23A, and the hoisting device 23B or the control rope 32 for manually expanding and contracting the slide cotter 26b of the connection receiver 26 constitute a connection tool 25 and an attachment / detachment control unit for the connection receiver 26. Is done.
[0025]
The rope moving means 20 is provided with a rope guide portion 34 for the kibble rope 24 at its distal end via a link mechanism 35, a pivot arm 37 whose proximal end is pivotally supported on the lower deck 10 by a rotation support base 36, and a telescopic rod Is connected to the base end side of the swivel arm 37, and a hoisting jack 39 that is attached to the distal end side of the swivel arm 37 and causes the rope guide portion 34 to be raised and lowered by the link mechanism 35.
[0026]
In the rope guide portion 34, a first guide roller 41 disposed along an extension line of the swivel arm 37 and a second guide roller 42 disposed orthogonal to the first guide roller 41 are provided above and below the mounting base 43. In the state shown by the solid line, the guide rollers 41 and 42 are engaged with the kibble rope 24, and the suspension position of the kibble 17 by the turning operation of the turning arm 37 by the turning jack 38 is set on the first pile position Y or Move to the second stacking position Z.
[0027]
When moving the suspension position, when the swing arm 37 is swung, the guide rollers 41 and 42 take in and engage the kibble rope 24 so that the kibble rope 24 can be pushed out or pushed back. The portion 34 can be disposed adjacent to the side opposite to the moving direction of the suspension position.
[0028]
That is, when the rope guide portion 34 is set so as to be adapted to the suspension position movement between the exchange position X and the first pile position Y, the exchange position X and the second pile position Z are opposite in the turning direction. Since the guide rollers 41 and 42 cannot be engaged with the kibble rope 24 when the suspension position is moved between them, the rope guide unit 34 is temporarily folded into a virtual line state by operating the hoisting jack 39, and the kibble rope After the positional relationship between 24 and the rope guide portion 34 is changed, the rope guide portion 34 is returned to the solid line position.
[0029]
As described above, the kibble exchanging device is configured with the kibble suspending means 19 and the rope moving means 20 as 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 the kibble is changed by operation, and the construction procedure will be described with reference to FIGS.
[0030]
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). The lower part (30b) of the control rope 30 including the hanging hook 22 and the connecting tool 25 is connected to the hanging handle 21 in advance.
[0031]
In the procedure 1 of FIG. 8A, the empty kibble 17A is suspended by the kibble rope 24 via the kibble suspension means 19, and the suspension position is at the exchange position X on the protruding passage by the rope moving means 20. The actual kibble 17B shows a state in the second stacking position Z, and the operator 44 connects the attachment / detachment tool 31 to connect the upper side (30a) and the lower side (30b) of the control rope 30. To do.
[0032]
8B, the operator 44 operates the turning jack 38 of the rope moving means 20, and the swiveling operation of the turning arm 37 moves the suspension position of the empty kibble 17A from the replacement position X to the first sliding position. After moving to the position Y, the unwinding operation of the kibble rope 24 is performed to suspend the empty kibble 17A and land at the first pile position Y at the bottom of the well.
[0033]
In step 3 of FIG. 8 (c), after the empty kibble 17A has landed, the kibble rope 24 is further rewound to bring the hanging handle 21 into a lying state, and the hoisting operation of the hoisting devices 23A and 23B causes the control rope 30, Although the state which showed the tension | tensile_strength 32 is shown, the connection tool 25 attached to the hanging hook 22 side will be in the state which can detach | leave from the connection receptacle 26 attached to the kibble rope 24 side by this.
[0034]
9A, in the state where the tension of the control rope 32 is maintained, the hoisting device 23A is rewound, the control rope 30 is loosened, and the connection tool 25 is dropped from the connection receiver 26 (FIG. 9). 5), after this, the connection of the attachment / detachment tool 31 is released and the lower side (30b) of the control rope 30 is removed from the connection receiver 26.
[0035]
In step 5 of FIG. 9B, the swivel arm 37 is operated with the swivel jack 38 to move the suspension position of the kibble rope 24 to the replacement position X, and then connected to the suspension handle 21 of the actual kibble 17B. The lower side (30b) of the control rope 30 is inserted into the connection receptacle 26 and connected to the upper side (30a) by connecting the attachment / detachment tool 31, and the positional relationship between the kibble rope 24 and the rope guide part 34 (of the kibble rope 24). Replace the rope guide 34) on the right side.
[0036]
Step 6 in FIG. 9C shows a state where the swing arm 37 is operated by the swing jack 38 and the suspension position of the kibble rope 24 is moved from the exchange position X to the second stacking position Z. The kibble suspension means at the time is in the state of FIG.
[0037]
In step 7 of FIG. 10A, the kibble rope 24 is once rewound and loosened, and when the hoisting devices 23A and 23B are hoisted to tension the control ropes 30 and 32, they are attached to the kibble rope 24 side. The connecting tool 25 can be fitted into the connecting tool 26 (see FIG. 4).
[0038]
Thereafter, the kibble rope 24 is wound up and tensioned, and the control ropes 30 and 32 are loosened to connect the connection tool 25 to the connection receiver 26 in a tightly coupled state (see FIG. 3). In step 8 of FIG. The kibble rope 24 is wound up to lift the actual kibble 17B onto the second pile position Z. At this time, the control ropes 30 and 32 are loosened.
[0039]
In step 9 of FIG. 10 (c), the swivel arm 37 is operated with the swivel jack 38 to move the suspension position of the kibble rope 24 to the exchange position X, and then the attachment / detachment tools 31, 40 of the control ropes 30, 32 are moved. After disconnecting the control ropes 30 and 32 from the connection tool 25 and the connection receiver 26 by releasing the connection, the actual kibble 17B is transferred to the ground through the protruding passage including the through hole 18 for the kibble.
[0040]
In the empty kibble 17A placed at the first shearing position Y, the shearing operation by the shear loader 16 is started, but the actual kibble 17B transferred to the ground during that time is ejected again after discharging the shear. It is carried into the exchange position X through the passage, and thereafter, the stacking and discharging operations are sequentially repeated by the same operations as in the procedures 1 to 9.
[0041]
At that time, the kibble placed at the first stacking position Y becomes a new actual kibble 17B, and the kibble carried into the exchange position X becomes a new empty kibble 17A, and the new empty kibble 17A becomes an exchange position. The new actual kibble 17B is transferred from X to the second pile position Z, transferred from the first pile position Y to the ground via the exchange position X, and transferred to the ground.
[Brief description of the drawings]
FIG. 1 shows a front view of a shaft excavation facility equipped with a kibble changer according to the present invention.
FIG. 2 shows a side view of a shaft excavation facility equipped with a kibble changer according to the present invention.
FIG. 3 is an operation explanatory view of the kibble suspension means which is a main part of the present invention, and shows a state in which the connecting tool is connected to the connecting receiver.
FIG. 4 is an operation explanatory view of a kibble suspending means which is a main part of the present invention, and shows a state in which the coupling tool can be detached with respect to the coupling receiver.
FIG. 5 is an operation explanatory view of the kibble suspending means which is a main part of the present invention, and shows a state in which the coupling tool is in a state of dropping with respect to the coupling receiver.
FIG. 6 is an operation explanatory view of a rope moving means which is a main part of the present invention, and shows the whole in a plan view.
FIG. 7 is an operation explanatory view of a rope moving means as a main part of the present invention, and shows an enlarged side view of the main part.
FIG. 8 is an explanatory diagram of the operation of kibble replacement performed using the kibble replacement device according to the present invention, and is an explanatory diagram of the operation procedures 1 to 3;
FIG. 9 is an explanatory diagram of the operation of kibble replacement performed using the kibble replacement device according to the present invention, and shows the operation procedures 4 to 6;
FIG. 10 is an explanatory diagram of the operation of kibble replacement performed by using the kibble replacement device according to the present invention, and is an explanatory diagram of operation procedures 7 to 9;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sheep 2 Rope 3 Vertical shaft 4 Scaffold 5 Mobile form frame 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 hanging means 20 Rope moving means 21 Hanging handle 22 Hanging hook 23 Winding device (23A, 23B)
24 Kibble Rope 25 Connector (Male)
26 Linkage (female)
27 Relay rope 28 Rope fixing tool 29 Rope fixing tool 30 Control rope 31, 40 Detachment tool 32 Control rope 33 Rider receiver 34 Rope guide 35 Link mechanism 36 Rotating support base 37 Turning arm 38 Turning jack 39 Lifting jack 41, 42 Guide roller 43 Mounting base X Replacement position Y First stacking position Z Second stacking position

Claims (3)

Rope moving means for engaging the kibble rope and moving the suspension position between the exchange position on the slide-out path and the first or second pile position set at the bottom of the pit, and a suspension hook at the tip And a kibble suspension means provided with a connection receiver in the middle of the kibble rope fitted with the kibble rope, and the connector side is connected to each kibble to be exchanged in advance via a suspension hook, and the connection tool A kibble exchanging device for shaft excavation equipment, wherein an attachment / detachment control unit for operating or disconnecting the control rope from above the scaffold is provided between the connection receiver and the connection receiver. The kibble suspending means has a cylindrical shape whose lower end side is gradually reduced in diameter, a connection receiver having a slide cotter that is expanded and contracted by moving up and down on the inner periphery, and a spindle type that fits into the connection receiver and is attached to and detached from the slide cotter. The connecting tool and one control rope suspended by the hoisting device are connected to the upper end side of the connecting device, and the hoisting device or the other control rope to be manually pulled up is connected to the upper end side of the slide cotter. The kibble exchanging device for shaft excavation equipment according to claim 1, further comprising a control unit, and a detachable tool for separating the rope up and down in the middle of one control rope. The rope moving means is provided with a rope guide portion that engages with a kibble rope at the distal end, a pivot arm having a proximal end pivotally supported on a scaffold, and one end connected to the proximal end side of the pivot arm, so that the rod can be expanded and contracted. The turning jack for turning the turning arm, and the raising / lowering jack for raising and lowering the rope guide portion mounted on the distal end side of the turning arm and adapting to the moving direction of the suspension point are provided. Kibble changer for shaft excavation equipment.

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