JP3346001B2 - Segment transfer equipment for shield machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

[0003] The shield method is to excavate the ground with a shield machine 2 in which a cutter 1 is rotatably mounted at the tip, and a segment 3 is attached to the tip of an existing segment 3 inside the shield machine. Are assembled into a tubular shape, and the shield excavator body 2 is propelled by the shield jack 4 using the assembled segment 3 as a scaffold, thereby constructing a tunnel 5 in the excavation pit.

In the shield method, since the segments 3 are assembled inside the shield machine 2, it is necessary to transport the segments 3 to the shield machine 2. Conventionally, as shown in FIG. As described above, the rail 6 is pulled to the lower part of the tunnel 5, and the segment 3 is conveyed by the segment carriage 7 movable along the rail 6 to just before the shield machine body 2.

[0005] Then, the segment 3 conveyed to just before the shield machine body 2 is then moved to the tip of the rail 6 and the segment supply device 8 inside the shield machine body 2.
Are lifted by a hoist 10 that moves along a hoist beam 9 provided between them, and are conveyed to the segment supply device 8, and then supplied from the segment supply device 8 to the segment assembling robot 11. .

As shown in FIG. 6, the rail 6 is a single track, and a plurality of double track sections 12 for the segment truck 7 to retreat and pass each other are formed in several places.

[0007]

However, conventionally, as described above, the single-rail 6 and the segment truck 7 are used as described above.
Since the segment 3 is transported by using the trolley, it is difficult to compose the operation schedule of the segment truck 7,
However, there is a problem that the operation of the segment truck 7 becomes difficult when the distance is increased.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a segment transport device of a shield excavator capable of transporting a segment without difficulty even when a tunnel is extended.

[0009]

According to the first aspect of the present invention, there is provided a shield excavator main body at the base end of the tunnel and at the tip end of a tunnel formed by excavating underground with a shield excavator main body. A pair of a forward hoist beam and a return hoist beam connecting the sides are provided, and a curved hoist beam is provided between both ends of both hoist beams to form a loop-shaped hoist rail as a whole, A shield, wherein a plurality of segment transport hoists are provided on the hoist rail, and when the segment transport hoist is reciprocated, the plurality of segment transport hoists travel without interfering with each other. The present invention relates to a segment transfer device of an excavator.

According to a second aspect of the present invention, an upper portion of a tunnel formed by excavating underground with a shield excavator body is connected between a vertical shaft at a base end of the tunnel and a shield excavator body at a distal end. A pair of a forward hoist beam and a return hoist beam are provided, and a return hoist beam having a switching portion is provided between the ends of both hoist beams to form a hoist rail, and a plurality of hoist rails are formed on the hoist rail. When the segment transport hoist is provided and the segment transport hoist is reciprocated, the return hoist is supplied from the forward path hoist beam to the segment supply side via the switching unit and from the segment supply side via the switching unit. The segment transport hoist is turned to the beam, and the plurality of segment transport hoists are configured to travel without interfering with each other. It relates to the segment conveying device shield machine according to claim.

[0011]

The operation of the present invention is as follows.

Since a hoist rail is provided between the vertical shaft at the base end of the tunnel and the shield machine body at the tip at the upper part of the tunnel formed by excavating the ground with the shield machine body, The forward and return paths of the hoist are formed.

Therefore, according to the present invention, when the segment transport hoist is reciprocated, the plurality of hoists travel without interfering with each other. Therefore, even when the tunnel is extended, a special operation plan is required. Without striking
The segments can be transported continuously without difficulty.

[0014]

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

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

In the drawings, reference numeral 1 denotes a cutter attached to the tip of the shield machine body 2, and 3 denotes a shield machine body 2.
And 4, a shield jack for excavating the shield machine 2 using the segment 3 as a scaffold.
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 segments 3 to the segment assembling robot 11, 13 is a base end side of the tunnel 5 It is a shaft formed in.

According to the present invention, a tunnel 5 formed by excavating underground with the shield machine body 2 connects between the shaft 13 at the base end of the tunnel 5 and the shield machine body 2 at the tip. A pair of a forward hoist beam 14 and a return hoist beam 15 are provided, and the return hoist beams 16 and 17 such as a curved hoist beam are connected between both ends of the two hoist beams 14 and 15 to form a whole. A loop rail 18 is used.

A plurality of hoists 19 capable of transporting the segments 3 in a suspended state are mounted on the loop-shaped rail 18 at a predetermined interval so as to be movable.

As shown in FIG. 2, the hoist 19 includes a hoist body 21 which can be moved along the rail 18 by a running roller 20 and a winding device 22 attached to the hoist body 21 to a wire 23 or a sheave 39. A lift table 24 suspended and supported so as to be able to move up and down, a turntable 28 attached to the lift table 24 so as to be able to turn horizontally via a motor 25 and gears 26 and 27 for turning horizontally, and the turntable 28 Are rotatably supported via a not-shown gripping motor, a pinion 29 and a gear 30, and project from the segment 3.
1 and a segment gripper 33 provided at its lower end with a claw portion 32 capable of fitting and locking.

A stopper 34 is attached to the turntable 28 and can be fitted and locked on a shoulder 35 formed on the segment 3. A lifting crane 36 is provided on the shaft 13 and comprises a segment elevator. It is an existing segment loading device called "etc."

Next, the operation will be described.

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

When the tunnel 5 is constructed, since the segment 3 is assembled by the segment assembling robot 11 provided inside the shield machine body 2, the bottom of the shaft 13 and the shaft 13 from the ground. It is necessary to transport the segment 3 from the bottom of the shield machine to the shield machine body 2.

Then, the space between the ground and the bottom of the shaft 13 can be transported by a conventional segment carrying device 36 such as a segment elevator provided in the shaft 13 as in the conventional case.

Therefore, according to the present invention, the forward hoist beam 14 connecting between the shaft 13 at the base end of the tunnel 5 and the shield machine body 2 at the tip end is provided above the tunnel 5.
And a return hoist beam 15, and a looped rail 18 composed of a folded hoist beam 16, 17 such as a curved hoist beam connecting between both ends of the both hoist beams 14, 15. A plurality of hoists 19 are installed along the shaft 13 and the shield machine 2
The segment 3 is transported from the bottom of the shaft 13 to the shield machine main body 2 by continuously reciprocating between them.

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

The segment 3 lowered to the bottom of the shaft 13
On the other hand, the hoist 19 waiting at the part of the return hoist beam 16 on the shaft 13 rewinds the wire 23 by the winding device 22 to lower the elevating table 24, and furthermore, the horizontal turning motor 25 and the gear By rotating the turntable 28 horizontally with respect to the lift table 24 via 26 and 27, the turntable 2
By adjusting the position, direction, angle, etc. of the stopper 34 attached to the segment 8 to match the shoulder 35 formed on the segment 3,
The shoulder portion 35 is locked and held by the stopper metal 34, and at the same time, the turntable 2
The segment gripper 33 attached to the segment 8 is
Is fitted to the locking tool 31 protruding from the connector.

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

When the hoist 19 holds the segment 3, the wire 23 is taken up by the take-up device 22.
The segment 3 is lifted, and in this state, the hoist 19 is moved along the forward hoist beam 14, the segment 3 is transported to the shield machine 2 and the segment 3 is transferred to the segment supply device 8 of the shield machine 2. Let it.

When the segment 3 is passed to the segment supply device 8, the hoist 19 changes its direction at the portion of the return hoist beam 17, and the hoist 19 is returned in an empty state.
Then, the vehicle travels along the path 5 to the shaft 13, turns around with the return hoist beam 16, and waits.

Thereafter, the hoist 19 is operated in the same manner as described above.
The segment 3 is received again from the segment loading device 36, and the above operation is repeated.

As described above, since the forward hoist beam 14 and the return hoist beam 15 are provided independently, a plurality of hoists 19 can be continuously operated at regular intervals. Even when the length of the tunnel 5 is increased, the segment 3 can be transported without difficulty.

FIG. 4 shows a second embodiment of the present invention. The switching unit 37 and the inside of the segment assembling apparatus 11 are arranged between the end of the forward hoist beam 14 and the return hoist beam 15 on the shield machine body 2 side. A return hoist beam 38, such as a switching hoist beam, having a segment supply section 39 extending from the forward hoist beam 14 to the segment supply section 39 via the return hoist beam 38 switching section 37. The direction of the hoist 19 is switched from the supply unit 39 to the return hoist beam 15 via the switching unit 37 in a switchback manner.

Further, by extending the segment supply section 39 of the return hoist beam 38 into the segment assembling apparatus 11, the hoist 1 can be provided without providing the segment supply apparatus 8.
9 to segment assembly robot 11 directly to segment 3
So that they can be handed over.

Other than the above, the configuration is the same as that of the above embodiment, and the same operation and effect can be obtained.

It should be noted that the present invention is not limited to only the above-described embodiment, and it is needless to say that various changes can be made without departing from the spirit of the present invention.

[0038]

As described above, according to the present invention, when the segment transport hoist is reciprocated,
Since the multiple hoists travel without interfering with each other, the superior effect of being able to transport segments smoothly and continuously without a special operation plan even when the tunnel lengthens is achieved. I can play.

[Brief description of the drawings]

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

FIG. 2 is a schematic side view of the hoist of 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 broken perspective view of a conventional example.

FIG. 6 is a plan view of the rail in FIG. 5;

[Explanation of symbols]

 2 Shield machine 3 Segment 5 Tunnel 13 Vertical shaft 14 Outgoing hoist beam 15 Hoist beam for returning 16, 17, 38 Return hoist beam 18 Hoist rail 19 Hoist 37 Switching unit

Claims (2)

(57) [Claims] 1. A forward hoist beam and a return hoist that connect between a shaft end at the base end of a tunnel and a shield excavator body at a tip end in an upper part of a tunnel formed by excavating underground with a shield excavator main body. While providing a pair with the beam,
When providing a curved hoist beam between both ends of both hoist beams to form a loop-shaped hoist rail as a whole, a plurality of segment transport hoists are provided on the hoist rail, and the segment transport hoist is reciprocated. Wherein a plurality of segment transport hoists travel without interfering with each other. 2. A forward hoist beam and a return hoist that connect between the shaft end at the base end of the tunnel and the shield excavator body at the tip at the upper part of the tunnel formed by excavating the ground with the shield machine body. While providing a pair with the beam,
When forming a hoist rail by providing a folded hoist beam provided with a switching portion between the ends of both hoist beams, providing a plurality of segment transport hoists on the hoist rail, and reciprocating the segment transport hoist. The direction of the segment transport hoist is changed from the forward hoist beam to the supply side of the segment via the switching section, and from the supply side of the segment to the return hoist beam via the switching section. A conveyer for a shield excavator, characterized in that the hoists for use run without interfering with each other.