JP2848073B2 - Segment feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The segments constituting the excavated tunnel walls by the present invention is shielded excavation proceeds machine BACKGROUND OF THE sequentially from the rear of the tunnel to the tip, the transfer to the rear of the shield <br/> excavation proceeds machine it relates segment supply device for supplying the segment sets elevational device provided.

[0002]

Conventionally, shield construction method using a shield excavation advance machine to tunnel excavation, such as the subway have been used.

[0003] The shield construction method, as shown in FIGS. 5 and 6, at the same time as drilling progresses the natural ground by the shield excavation proceeds machine a, which build a concrete tunnel wall b to a tunnel surrounding the excavation The concrete tunnel wall b is formed by sequentially combining a plurality of segments c formed along the inner periphery of the tunnel into a cylindrical shape. To briefly explain the flow of the segment c, first, the segment c conveyed to the tip of the tunnel by the segment truck d from the back of the tunnel is free to travel along a beam e provided in the length direction of the tunnel. is gripped by a vertically movable segment gripping device k provided in segments carrying hoist f, it is conveyed to the shield excavation proceeds station a side segment pair which is attached to the rear of the shield excavation proceeds <br/> station a after being fed to the standing device g, adapted to be assembled sequentially tubular this segment assembly elevational device g. Among them, Segume
The supply of segments for automatic assembly
As shown in FIG. 6, the delivery of the segment c from the segment transport hoist to the automatic segment assembling device g is performed by the segment supply device h. That is,
Segment carrying hoist f by lowering the segment c which is gripped by feeding the wire i reaches the distal end of the beam e, segment automated assembly device g
After delivering the segment c to the delivery means j of the segment supply device h provided at the rear , the delivery means j
Is slid to the automatic segment assembling apparatus g side to supply the segment c thereto.

[0004]

However, as shown in FIG. 6, according to this method, the transfer of the segment c from the segment conveying hoist f to the delivery means j of the segment supply device h is performed for each segment piece. Do it once
Segment before the shield machine.
Efficient automatic stocking in large numbers
The mechanism was unfamiliar with the supply method.

[0005] The present invention has been devised in order to solve these problems effectively, together with its objects automation segment supplied from the segment carrying the hoist to segment pairs elevation device is achieved Another object of the present invention is to provide a segment supply device with improved work efficiency.

[0006]

To achieve the above object of the Invention The present invention is a segment constituting the excavated tunnel walls by the shield excavation proceeds machine, sequentially from the rear of the tunnel to the tip, and transferred the disposed downhole above Symbol tunnel keep <br/> the segment supply device for supplying the segment sets elevational device provided in the shield excavation proceeds machine, from the rear of the tunnel to the segment sets elevational device near A conveyor for sequentially transferring the segments, a fixed frame fixed to the shield machine , and a suspension frame suspended from the fixed frame, and the delivery frame is firstly connected to the conveyor. At the output end, the segment conveyed to the output end of the conveyor is placed, and after positioning the segment,
Proceeds, and it is made of a transfer means configured to sequentially transfer to the segment sets elevational device.

[0007]

According to the present invention, the segments constituting the tunnel wall are conveyed from the rear of the tunnel to the leading end by the conveyor and received by the transfer means from the discharge end thereof. since that will be sequentially transfer the <br/> emissions Efforts elevational device, towards the other
The number of times re received compared modulo less, the supply of the segment to the cell Gumen Efforts elevation device is performed quickly, thereby improving the working efficiency. In addition, since the delivery means is provided with a segment centering function , in the case of an automatic segment assembling apparatus , the delivery of segments is automatically and reliably performed, and automation from segment supply to assembly is achieved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is a front view thereof.

[0010] Segment supply apparatus 1 of the present invention is a concrete segments 3 constituting the tunnel wall 2 drilled by the shield <br/> excavation proceeds machine (not shown), sequentially from the rear of the tunnel to the tip, transfer to and to supply the segment sets elevational device 4 provided at the rear of the shield excavation proceeds machine, as shown, unloaded end 5a is the segment
A conveyor 5 disposed downhole of the tunnel so as to be positioned behind the set elevation device 4, the fixed frame 6 fixed to the shield machine 1, Kaka設 to the fixed frame 6
And delivery means 7.

As shown in FIGS. 1 to 3, the conveyor 5 is provided at a central portion of a long conveyor frame 8 for transporting the segments 3 from the loading end 5b to the delivery end 5a. The transport path 9 is formed.
Is provided with an endless chain 11 driven by a transport motor 10, for example . Also, this conveyor frame 8
Running on both sides of the transport path 9
A plurality of running wheels 13 are provided along the length of the running wheels 13 so as to be able to move simultaneously with the shield machine . On the other hand, a plurality of transport rollers 14 are independently rotatably provided on the upper surface of the conveyor frame 8 and on both sides of the transport path 9 at appropriate intervals along the length direction thereof. In addition, both sides of the lower surface (outer surface) of the curved segment 3 are supported. Also,
A driving member 15 is protruded from the outer peripheral surface of the chain 11 at a predetermined interval, and the driving force of the chain 11 is
The light is transmitted to the segment 3 supported by the transport roller 14, and is extruded and transported to the discharge end 5a side.

Delivery means 7 provided on fixed frame 6
As shown in FIGS. 1 and 2, a support frame 16 fixed horizontally to the fixed frame 6,
The delivery frame 17 provided in parallel with the lower part of
And a delivery frame moving means 18 for connecting and supporting the support frame 16 and the delivery frame 17 and arbitrarily moving the delivery frame 17 in parallel with the support frame 16.

The delivery frame 17 is provided on the conveyor 5
Is formed in a U-shape so as to surround the discharge end 5 a of the conveyor 5, and has a leading end portion for receiving and placing the segment 3 carried out from the discharge end 5 a of the conveyor 5.
9 are formed. Further, as is shown in FIG. 2 to the mounting portion 19, longitudinal positioning stopper 20, the centering roller 21, the segment drawn jack 22, left and right centering device 23 is kicked, respectively it set, unloaded end 5a of the conveyor 5 When receiving and placing the segment 3 carried out from the company, the centering is automatically performed so that the segment 3 is set in a predetermined position.

The delivery frame moving means 18 includes an elevating means 25 for raising and lowering the delivery frame 17, and a delivery frame 1
7 along the support frame 16 and a stretchable section 26 for horizontally moving the said segments set elevational device 4 directions. The lifting means 25 includes four cylinders 25 a erected on both sides of the delivery frame 17,
a, a lower end portion of which is inserted freely and an upper end portion of which is supported by the support frame 16.
The delivery frame 17 is controlled to move up and down with respect to the support frame 16 by hydraulic pressure. A roller 27 is provided at the upper end of each of the piston rods 25b of the elevating means 25 so as to be able to travel along the support frame 16, whereby the delivery frame 17 is movable. On the other hand, expansion means 26, this lifting means 25 is constituted by a similarly hydraulic cylinder, so as to move horizontally in the direction of the segment sets elevational device along a transfer frame 17 by controlling the oil pressure to the support frame 16 It has become. Further, as an example, the rollers 27 of the pair of hydraulic cylinders located in front of the delivery frame 17 run on the upper surface side of the support frame 16,
Rollers 27 ' of a pair of hydraulic cylinders located behind the transfer frame 17 run inside the support frame 16 made of H-channel steel. That is, as shown in FIG.
When the concrete segment 3 with a large load is placed on the pair of hydraulic cylinders located in front of the delivery frame 17, a force acts in the extending direction on the pair of hydraulic cylinders located in front of the delivery frame 17. This is because the force acts in the contracting direction, so that the rollers 27 ′ of the pair of hydraulic cylinders located behind the delivery frame 17 do not come off the support frame 16.

Next, the operation of this embodiment will be described.

First, as shown in FIG. 2, a conveyor 5 which constitutes one of the segment supply devices 1 has a chain 11 for driving the segment 3 conveyed from the segment conveying hoist (not shown). The entraining member 15 causes the carry-in end 5b to pass through the transport path 9 from the carry-in end 5b to the carry-out end 5a.
To the side. Then, when the segment 3 reaches the unloading end 5a, the segment 3 is sent out to the mounting portion 19 of the transfer frame 17 of the transfer means 7 located at the unloading end 5a. Next, the delivery means 7 having the segments 3 placed on the placement portion 19 of the delivery frame 17 drives the elevating means 25 of the delivery frame moving means 18 to raise the delivery frame 17 and raise the segments 3 to a predetermined height. become. At this time, the segment 3 is automatically set by the front / rear positioning stopper 20, the centering roller 21, the segment pulling jack 22, and the left / right centering device 23 provided on the mounting portion 19 so that the front / rear and left / right positions become predetermined positions. It will be centered. That is, the positioning in the front-back direction is achieved by the stopper 20 and the segment pulling jack 22, and the positioning in the left-right direction is achieved by the centering roller 21 and the left-right centering device 23. Next, in this state, the expansion / contraction means 26 of the delivery frame moving means 18
When the extension it long, lifting means roller 27 which is connected to the 25 rolling segment assembly elevational device 4 side along the support frame 16, segments the transfer frame 17 to the lifting means 25 and which is connected to and supported by horizontally moving the set elevation device 4, it is positioned a segment 3 are placed on the placing portion 19 beneath the grip portion 24 of the cell <br/> Gumen Efforts elevational device 4, Se <br / > comprising receiving handing in to the grip portion 24 of the Gumen Efforts elevation device 4. Then, this segment supply device 1 and described above with the opposite movement, returns to its original state, to supply to the subsequent turn in the same operation sequence segment sets elevational device segments 3 Repeat 4 Become.

It should be noted that the conveyor 5 of the segment supply device 1 is not always driven so as to convey the segment 3 to the unloading end 5a, but is automatically operated intermittently in conjunction with the delivery means 7. Needless to say. That is, when the delivery frame 17 of the delivery means 7 is positioned on the unloading end 5a side of the conveyor 5 and enters a standby state, it senses and drives it and drives the next segment 3 stopped on the transport path 9 to deliver the next segment 3 17 Also,
According to the shield excavation , this conveyor 5 is a shield excavator
That has become a way to move forward, driven by.

[0018]

In summary, according to the present invention, the efficiency of transferring segments from the conveyor to the transfer means is improved.
And also because the centering segments are readily achieved, is achieved automation segment supply to segment sets elevational device, it has an excellent effect that work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing one embodiment of the present invention.

FIG. 3 is a front view showing one embodiment of the present invention.

FIG. 4 is an explanatory diagram showing the operation of the present invention.

FIG. 5 is an explanatory diagram showing a flow of a conventional segment by a shield excavation method.

FIG. 6 is a schematic diagram showing a conventional segment supply device.

[EXPLANATION OF SYMBOLS] 1 segment feeder 2 tunnel wall 3 segments 4 segments set elevation device 5 conveyor 5a unloaded end 6 fixed frame 7 transfer means 17 transfer a frame

Claims (1)

(57) [Claims] The method according to claim 1] segments constituting the excavated tunnel walls by the shield excavation proceeds machine, sequentially from the rear of the tunnel to the tip provided to the segment sets elevational device provided in the shield excavation proceeds machine transported disposed downhole above Symbol tunnel Te segment feeder <br/> odor, sequentially from the rear of the tunnel to the segment sets elevational device near a conveyor for transporting said segments, said shield
Fixed frame fixed to the machine , and suspended on the fixed frame
At the same time , the delivery frame is initially located at the unloading end of the conveyor, and the segment conveyed to the unloading end of the conveyor is placed and positioned .
Forward, and the segment supply apparatus characterized by comprising a transfer means configured to sequentially transfer to the segment sets elevational device.