JPH07158398A - Segment conveyor of shield machine - Google Patents

Abstract

PURPOSE:To make it possible to easily convey segments even if a long-distance tunnel is constructed. CONSTITUTION:A go trip hoist beam 14 and a return trip hoist beam 15 connecting between a vertical shaft 13 side of the base end of a tunnel 5 and a shield machine main body 2 side of the front end are provided to the upper part of the inside of the tunnel 5 formed in the ground excavated by the shield excavator main body 2, and turnable hoist beams 16 and 17 are connected between both ends of both hoist beams 14 and 15. Hoists 19 capable of conveying segments 3 in a suspending state are reciprocated by means of the hoist beams 14-17. According to the constitution, the segments 3 can be conveyed in succession without making the hoist 19 for a return trip interfere with the hoist 19 for a go trip.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment carrier for shield machine.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a segment transfer device for a conventional shield machine.

In the shield construction method, the ground is excavated by the shield excavator main body 2 having the cutter 1 rotatably attached to the tip thereof, and the segment 3 is provided inside the shield excavator main body 2 at the tip of the existing segment 3. Is assembled in a tubular shape, and the shield jack 4 is used to propel the shield machine main body 2 using the assembled segment 3 as a scaffold to construct the tunnel 5 in the excavation pit.

In the shield construction method, since the segment 3 is assembled inside the shield machine main body 2, it is necessary to convey the segment 3 to the shield machine main body 2. Conventionally, as shown in FIG. As described above, the rail 6 is pulled to the lower portion of the tunnel 5, and the segment truck 7 movable along the rail 6 conveys the segment 3 to the position immediately before the shield machine main body 2.

Then, the segment 3 conveyed to immediately before the shield machine main body 2 is then provided with a tip end portion of the rail 6 and a segment supply device 8 inside the shield machine main body 2.
Is hoisted by a hoist 10 which moves along a hoist beam 9 provided between the segment feeding device 8 and the segment feeding device 8, and is then fed from the segment feeding device 8 to the segment assembly robot 11. .

As shown in FIG. 6, the rail 6 is a single track, and a plurality of double track portions 12 for retracting and passing the segment carriage 7 are formed in several places on the way.

[0007]

However, in the prior art, as described above, the single-rail 6 and the segment truck 7 are used.
Since the segment 3 was transported by using the segment, it is difficult to form the operating schedule of the segment carriage 7, and especially the tunnel 5
However, there is a problem that it becomes difficult to operate the segment trolley 7 when the vehicle becomes longer.

In view of the above situation, it is an object of the present invention to provide a segment carrier device for a shield machine, which can reasonably carry a segment even when the tunnel has a long distance.

[0009]

SUMMARY OF THE INVENTION According to the present invention, an upper part of a tunnel formed by excavating the ground with a shield machine main body connects a vertical shaft side of a tunnel base and a shield machine main body side of a tip. A forward hoist beam and a backward hoist beam are provided as a pair, and a hoist beam is formed between both ends of both hoist beams to form a hoist rail, and a plurality of segment transfer hoists are provided on the hoist rail. The present invention relates to a segment transfer device for a shield machine.

[0010]

The operation of the present invention is as follows.

At the upper part of the tunnel formed by excavating the ground with the shield machine main body, a hoist rail is provided between the vertical shaft side of the tunnel base and the shield machine main body side of the tip. The forward and return paths of the hoist will be formed.

Therefore, if the hoist for transporting the segment is reciprocally moved using the rail, the plurality of hoists travel without interfering with each other, and the hoist can be continuously operated without a special operation plan. Can be transported.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention.

In the figure, 1 is a cutter attached to the tip of the shield machine main body 2 and 3 is the shield machine main body 2.
The segments 4 assembled inside by the segment assembling robot 11 are shield jacks 5 for excavating the shield excavator main body 2 with the segments 3 as scaffolds.
Is a tunnel constituted by the assembled segments 3, 8 is a segment supply device provided inside the shield machine main body 2 for supplying the segment 3 to the segment assembling robot 11, and 13 is a proximal end side of the tunnel 5. It is a vertical shaft formed in.

In the present invention, the tunnel excavator main body 2 excavates the ground to connect the upper end of the tunnel 5 to the vertical shaft 13 side of the tunnel 5 and the tip end of the shield excavator main body 2 side. , The forward hoist beam 14 and the backward hoist beam 15 are provided as a pair, and folding hoist beams 16 and 17 such as curved hoist beams are connected between both ends of both hoist beams 14 and 15 to form a whole. A loop-shaped rail 18 is used.

Then, a plurality of hoists 19 capable of transporting the segment 3 in a suspended state are movably attached to the loop-shaped rail 18 at regular intervals.

As shown in FIG. 2, the hoist 19 includes a hoist body 21 movable along the rails 18 by a traveling roller 20, a wire 23 and a sheave 39 on a winding device 22 attached to the hoist body 21. An elevator platform 24 which is hung and supported via an elevator, a rotary platform 28 mounted on the elevator platform 24 so as to be horizontally rotatable via a horizontal swing motor 25 and gears 26 and 27, and the rotary platform 28. A locking tool 3 that is pivotally supported via a gripping motor, a pinion 29, and a gear 30 (not shown) and that projects from the segment 3.
The segment gripping tool 33 is provided at its lower end with a claw portion 32 that can be fitted and locked to the first portion.

Reference numeral 34 is a clasp that is attached to the rotary base 28 and can be fitted and locked to a shoulder portion 35 formed in the segment 3, and 36 is a hoisting crane provided in the vertical shaft 13, and is a segment elevator. It is an existing segment loading device called as.

Next, the operation will be described.

The process of excavating the ground with the shield machine main body 2 and constructing the tunnel 5 is the same as in FIGS.

When the tunnel 5 is constructed, since the segment assembly robot 11 provided inside the shield machine main body 2 assembles the segment 3, the bottom of the pit 13 and the pit 13 are assembled from the ground. It is necessary to transport the segment 3 from the bottom of the to the shield machine main body 2.

From the ground to the bottom of the shaft 13, the existing segment carrying-in device 36 such as a segment elevator provided in the shaft 13 can be used for conventional transportation.

Therefore, in the present invention, in the upper part of the tunnel 5, the forward hoist beam 14 connecting the shaft 13 side at the base end of the tunnel 5 and the shield machine main body 2 side at the tip end.
And a return hoist beam 15, and a loop-shaped rail 18 composed of folding hoist beams 16 and 17 such as a curved hoist beam that connects between both ends of both hoist beams 14 and 15, and the loop-shaped rail 18 is provided. A plurality of hoists 19 are provided along the vertical shaft 13 and the shield machine main body 2
The segment 3 is conveyed from the bottom of the shaft 13 to the shield machine main body 2 by continuously reciprocating in the meantime.

That is, the segment 3 conveyed from the ground by the existing segment carrying-in device 36 such as a segment elevator provided in the vertical shaft 13 is once lowered to the bottom of the vertical shaft 13.

Segment 3 lowered to the bottom of shaft 13
On the other hand, the hoist 19 waiting in the portion of the hoist beam 16 for folding on the side of the shaft 13 rewinds the wire 23 by the winding device 22 to lower the elevating table 24, and the horizontal turning motor 25 and the gear. By rotating the rotary base 28 horizontally with respect to the lift base 24 via 26 and 27, the rotary base 2
By adjusting the position, the direction, the angle, etc. of the clasp 34 attached to the No. 8 according to the shoulder portion 35 formed on the segment 3,
The shoulder 35 is locked and held by the stopper 34, and at the same time, the turntable 2
The segment gripper 33 attached to the segment 3
It is fitted to the locking tool 31 projected from the.

Next, a gripping motor (not shown) is driven,
The segment grip 33 via the pinion 29 and the gear 30
Is pivoted and the phase of the claw portion 32 at the lower end of the segment gripping tool 33 is changed so that the locking tool 31 projected from the segment 3 is hooked by the claw portion 32 and the segment 3 is held by the hoist 19.

The hoist 19 may directly receive the segment 3 from the segment carry-in device 36.

After the hoist 19 holds the segment 3, by winding the wire 23 with the winding device 22,
The segment 3 is hoisted, and in this state, the hoist 19 is caused to travel along the forward hoist beam 14 to convey the segment 3 to the shield machine main body 2 and pass the segment 3 to the segment supply device 8 of the shield machine main body 2. Let

When the segment 3 is delivered to the segment supply device 8, the hoist 19 changes its direction at the folding hoist beam 17, and in the empty state, the hoist beam 1 for the return path.
It moves to the shaft 13 along 5 and changes direction by the hoist beam 16 for turning back and waits.

Thereafter, the hoist 19 is similar to the above,
The segment 3 is again received from the segment carry-in device 36, and the above-described work is repeated.

As described above, by independently providing the forward hoist beam 14 and the backward hoist beam 15, it becomes possible to continuously operate a plurality of hoists 19 at regular intervals. Even if the tunnel 5 has a long distance, the segment 3 can be transported without difficulty.

FIG. 4 shows a second embodiment of the present invention, in which the switching portion 37 and the segment assembling device 11 are disposed between the ends of the forward hoist beam 14 and the backward hoist beam 15 on the shield machine body 2 side. A hoist beam 38 for return such as a switching hoist beam having a segment supply portion 39 extending to the segment feed portion 39 is provided from the forward hoist beam 14 to the segment supply portion 39 via the switching portion 37 of the return hoist beam 38. The hoist 19 is switched from the supply unit 39 to the hoist beam 15 for the return path via the switching unit 37 in a switchback manner.

Further, by extending the segment supply section 39 of the hoist beam 38 for folding back into the segment assembly apparatus 11, the hoist 1 can be provided without providing the segment supply apparatus 8.
Directly from 9 to segment assembly robot 11 Segment 3
I am able to hand over.

Except for the above, the structure is the same as that of the above-mentioned embodiment, and the same operation and effect can be obtained.

The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0037]

As described above, according to the segment carrier of the shield machine of the present invention, it is possible to achieve the excellent effect that the segment can be comfortably carried even when the tunnel has a long distance.

[Brief description of drawings]

FIG. 1 is a partially transparent and cutaway perspective view of a first embodiment of the present invention.

2 is a schematic side view of the hoist of FIG. 1. FIG.

FIG. 3 is a front view of a gripping tool provided on the hoist.

FIG. 4 is a partially transparent and cutaway perspective view of a second embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view of a conventional example.

FIG. 6 is a plan view of the rail of FIG.

[Explanation of symbols]

 2 Shield machine main body 3 Segment 5 Tunnel 13 Vertical shaft 14 Forward hoist beam 15 Return hoist beam 16,17,38 Return hoist beam 18 Hoist rail 19 Hoist

Claims (1)

[Claims] 1. A forward hoist beam and a hoist for return which connect a vertical shaft side at a tunnel base end and a shield excavator main body side at a tip end in an upper part of a tunnel formed by excavating the ground with a shield excavator main body. A pair with the beam is provided,
A segment transfer device for a shield machine, characterized in that a hoist beam is provided between both ends of both hoist beams to form a hoist rail, and a plurality of segment transfer hoists are provided on the hoist rail.