JP3038355B2 - Segment feeder - 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 supplying apparatus for supplying a segment to an erector constructing an inner wall of a tunnel.

[0002]

2. Description of the Related Art As shown in FIG. 3, a segment c is stretched by an erector b on an inner surface of a digging hole excavated by a shield machine a to construct an inner wall of a tunnel.
Conventionally, the supply of the segment c to the erector b has been performed as follows.

[0003] First, a segment c mounted on a truck d
Is transported from the tunnel entrance to the interior of the tunnel. Then, after the excavator a has excavated one ring of the segment c, the segment c on the carriage d is hung by a hoist e or the like, moved forward, and carried to a delivery table f provided near the erector b. Then, the segment c of the delivery table f is pushed out toward the erector b by the pusher g, whereby the supply of the segment c to the erector b is achieved.

[0004]

However, in the system as described above, when the segments c are supplied to the erector b, the segments c on the carriage d are suspended by the hoist e or the like, and the delivery tables f are individually placed. However, since the segment c is very heavy, it is not easy to supply it to the erector b. For this reason, the transport time to the delivery table f becomes longer, and as a result, the segment supply time becomes longer.

[0005] A temporary storage place (not shown) for temporarily storing a plurality of segments c is provided between the carriage d and the delivery table f, and is transported to the delivery table f by another hoist. What is done is suggested. In this proposal,
In order to temporarily place a plurality of segments c between the cart d and the delivery table f, the reciprocating distance of the hoist e is reduced to a temporary storage location-supplying device f.
Although the interval is slightly shorter, the segment supply time is slightly shortened, but it requires time and space for temporary placement, which is not preferable in a narrow tunnel.

SUMMARY OF THE INVENTION An object of the present invention, which has been made in view of the above circumstances, is to provide a segment supply device which shortens and automates a segment supply time.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a conventional segment transported on a truck.
A transfer table provided near the erector and transferring the segment to a receiving portion of the erector, and provided behind the transfer table to transport the segment in the excavation direction. A plurality of transport rollers, and a segment on the trolley suspended from the carry-in end of each of the transport rollers and rotated 90 degrees around a vertical axis.
A hoist that is rotated and transported , a feed drive device that sequentially moves the segments carried by the hoist on rollers and sends them to the delivery table, and a rotatable upper part of the transport rollers.
Key segment on the transport roller when it is pivoted down
The guide roller guides the side of the
A pair of movable guides separated from the upper normal segment
And a key set provided behind the carry-in end of the conveying roller.
And a temporary placement table on which the cement is temporarily placed .

[0008]

The segment on the carriage is first carried by the hoist to the carry-in end of the transport roller, and then sequentially moved on the transport roller by the feed drive device and sent to the delivery table. As described above, the segments are sequentially moved on the transport rollers, so that the segments are placed in a single row on the transport rollers. Therefore, the segments can be made to stand by in a row near the rear of the erector. For this reason, during segment assembly,
The segments waiting near the rear of the erector can be sequentially sent to the erector via the delivery table, and the time for supplying the segments from the bogie to the erector can be greatly reduced. For details, on the cart,
Usually a segment is placed, and a key segment is placed on top of it.
The hoist first suspends the key segment
This key segment will be
Therefore, since it is the last to be assembled, temporarily put it temporarily
On a table, and then hoist the segment
To transfer to the transport roller from the carriage in order.
The normal segment is sequentially moved forward by the feed drive unit
Finally, transport the key segment of the temporary table with a hoist
Transfer each segment to an erecta
Can be supplied in the order of assembly. In addition, key segments
When transporting on a roller, the movable guide rotates downward.
Key segment to guide the sides of the key segment
Can be transported straight without meandering.
This movable guide usually moves segments on the transport rollers.
Because it rotates upward when transporting, the normal segment
Does not interfere with the transport of Also, if the hoist is 90
The center of the tunnel in the height direction.
Segment in the air)
Can be turned around, especially in narrow tunnels
The direction of the segment can be changed without any change.

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a shield machine, and an erector 4 for assembling a segment 3 is provided in a shield frame 2.

The erector 4 includes a ring body 5 that rotates concentrically with the shield diameter, a column 6 attached to the ring body 5 at right angles, an arm 7 attached to the column 6 and moving in the radial direction, and an arm. A gripping portion 8 attached to the tip of the body 7 and substantially gripping the segment 3. According to this configuration, after the segment 3 is gripped by the gripper 8,
By rotating the ring body 5 by contracting the arm body 7 in the radial direction, the segment 3 can be rotated along the inner surface of the moating hole. Then, by moving the arm body 7 in the desired segment assembling position in the radial and axial directions, the grasped segment 3 can be moved to the desired assembling position.

In the vicinity of the rear of the erector 4, a delivery table 9 is provided so as to be able to reciprocate along the longitudinal direction of the tonnel, and the delivery table 9 is provided with a segment 3 mounted on the platform 9 of the erector 4. A pusher 10 is provided so as to transfer to the receiving section. A plurality of transport rollers 11 are arranged behind the delivery table 9 at predetermined intervals along the excavation direction until immediately after the table 9. As shown in FIG.
The segment 3 is sent to the delivery table 9 after moving in the direction of excavation on the transport roller 11.

As shown in FIG. 1, a temporary placement table 12 for the segments 3 and a segment guide 13 are provided behind the transport rollers 11, and the rails 15 are laid on the rails 15 laid through the cross members 14 behind them. A trailing truck 16 that travels with the excavation of the machine 1 is arranged. The trailing bogie 16 is the excavator 1
, And a segment truck 17 having the segment 3 mounted on the truck 16 is traveling. For example, three segments 3 are placed on the segment cart 17 in an assembling order, and in the case of a one-ring, six-piece segment 3, the first cart 17 has three A-type segments assembled first. Are mounted, and the next carriage (not shown) carries two B-type segments and a key segment 3k to be assembled last.

A hoist beam 18 extends between the upper part of the succeeding carriage 16 and the upper part of the rear (conveyance end) of the transport roller along the longitudinal direction of the tunnel. A hoist 19 as a transporter that moves is engaged. The hoist 19 has a function of holding the segment 3, a function of moving up and down by the hoisting drum 20, and a function of rotating a motor (not shown) around the vertical axis.
It has a function of rotating 90 degrees, grips and suspends the segment 3 on the segment cart 17, moves along the beam 18 to above the carry-in end of the transport roller 11 in front of the tunnel, and rotates 90 degrees. The segment 3 is hung on the transport roller 11.

1 and 2 are provided above the transport roller 11.
As shown in the figure, a feed drive device 21 for sequentially moving the segments 3 on the rollers 11 and sending the segments 3 to the delivery table 9 is provided, and below the feed drive device 21, the segments 3 mounted by the hoist 19 are fed and driven. The drawing-in device 23 for feeding to the transfer position 22 below the rear end of the device 21
Are provided on both sides. The retracting device 23 moves the segment 3 by engaging a retracting piece 25 attached to the tip of a reciprocating rod 24 with the segment 3.
The pull-in piece 25 is formed so as to engage even a small key segment 3k, for example, as shown by a dotted line in FIG.

As shown in FIGS. 1 and 2, the feed driving device 21 is composed of two endless belts 27 which are rotated by driving a pulley 26.
The belt 27 is arranged substantially parallel to the roller 11 so that there is an interval slightly larger than the thickness of the segment 3 between them. A plurality of feed pieces 28 are provided on the belt 27 at a predetermined angle at a substantially right angle to abut on the rear portion of the segment 3 at the transport position 22 and push the segment 3 forward. The interval between the feed pieces 28 is formed to be slightly larger than, for example, the width of the segment 3 so that the segments 3 are placed in a line on the transport roller 11, and the segment 3 at the transport position 22 is moved by the feed piece 28 by the rotation of the belt 27. The paper is sequentially moved forward on the transport roller 11 and finally sent to the delivery table 9 so as to be pushed out.

A fixed guide 2 is provided above the transport roller 11 for guiding the segment 3 to move on the roller 11 while the segment 3 is suspended on the transport roller 11.
9 are provided. Further, movable guides 30 for guiding the key segments 3k are provided on both sides of the feed driving device 21 at appropriate intervals, and each time the key segments 3k move, the movable guides 30 opposing each other are moved along a dotted line. Is to be located.

In FIG. 1, reference numeral 31 denotes a slide warp.

Next, the operation of this embodiment will be described.

As shown in FIG. 1, when, for example, three segments 3 placed on the segment truck 17 are conveyed into the succeeding truck 16, the hoist 19 is driven and the segment on the segment truck 17 is moved. 3 sequentially carry rollers 1
1 to the carry-in end. In the case of a segment 3 of one ring and six pieces, three pieces are
The segments 3 are placed on the carriage 17 in the order of assembly, but the key segment 3k to be assembled last is small and thus placed on the other segments 3, so that the key segment 3k is placed on the temporary placement table 12. It is temporarily placed and finally carried on the roller 11.

The segment 3 placed on the carry-in end behind the conveying roller 11 is sent to a conveying position 22 below the rear end of the feed driving device 21 by a drawing piece 25 of a drawing device 23 and positioned. After the positioning, the pulley 26 is driven to rotate the belt 27, and the feed piece 28 abuts (engages) on the rear portion of the segment 3, and the segment 3 is guided forward by the fixed guide 29 on the roller 11. Extruded and moved. In the case of the key segment 3k as well, it is similarly positioned at the transport position 22 by the retracting device 23, and moves forward while being guided by the movable guide 30 by the rotation of the belt 27.

At this time, after the belt 27 has been extruded by one segment, the pulley 26 is stopped, the next segment 3 is positioned at the transport position 22, and then the pulley 26 is driven. By repeating this, the segments 3 are sequentially placed on the transport roller 11 in the order of assembly.

The segment 3 on the transport roller 11 is moved on the roller 11 by the feed drive device 21 and is pushed out of the delivery end in front of the roller 3 to the delivery table 9. As described above, since the segments 3 move in a row on the roller 11, a large space for temporarily arranging a plurality of the segments 3 at one location is not required.

When the segment 3 is placed on the delivery table 9, the delivery table 9 is pushed out toward the erector 4 by the pusher 10, and the segment 3 on the pedestal 9 is positioned at the receiving portion of the erector 4. Thus, the segment 3 is gripped by the erector 4 and assembled at a predetermined position.

Therefore, the segment 3 is the segment truck 1
7 from above, are sequentially conveyed by the hoist 19 to the carry-in end of the conveying roller 11, are placed in a row on the conveying roller 11 by the drawing-in device 23 and the feed driving device 21, and are sequentially sent to the delivery table 9, so that the excavation is performed. Even when the segments 3 are not assembled, the segments 3 can be made to stand by in a line in the order of assembly on the transport rollers 11 immediately after the delivery table 9. For this reason, at the time of assembling the segments, the segments 3 that have been waiting near the rear of the erector 4 can be successively sent to the erector 4 via the transfer table 9, and the segment supply time from the trolley 17 to the erector 4 can be greatly reduced. Can be shortened.

[0026]

As described above, according to the present invention, the segment
The following excellent effects can be achieved with the
You. (1) Automated supply of segments from trolleys to erecta
And the segment supply time can be reduced. (2) Normal segment and key segment mounted on trolley
The elements can be supplied to the erector in the order of assembly. (3) The key segment is the same as the normal segment
It can be transported straight without meandering on the lathe. (4) Use a hoist to rotate the segment in the air.
Easy segmentation even in narrow tunnels
Direction can be changed.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a shield machine equipped with a segment supply device according to an embodiment of the present invention.

FIG. 2 is a view taken along the line AA in FIG.

FIG. 3 is a side sectional view showing an example of the related art.

[Explanation of symbols]

 Reference Signs List 3 segment 4 Elector 9 Delivery table 11 Conveyance roller 17 Cartridge 19 Hoist (transport machine) 21 Feed drive device

Claims (1)

(57) [Claims] 1. A normal seg carried over a trolley
An apparatus for supplying instruments and key segment erector, provided in the vicinity of the erector, a transfer table to move a segment to the receiving portion of the erector, provided behind the transfer table, for transporting the segments excavation direction A plurality of transport rollers, and a segment on the carriage suspended at the carrying-in end of the transport rollers, and 90 degrees around a vertical axis.
A hoist for swiveling and transport, a feed drive device for sequentially moving the segments carried by the hoist on rollers and sending them to the delivery table, and a rotatable upper roller above the transport rollers
The key set on the transport roller when turned down
Guides the side of the
A pair of movable guides separated from the normal segment on the
And a key set provided behind the carry-in end of the conveying roller.
A segment placement device on which the segment is temporarily placed .