JPH0724480Y2 - Segment carry-in equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a segment carrying-in facility for carrying a segment for primary lining into a tunnel excavated by a shield method.

Conventional technology When excavating a tunnel with a shield machine,
As shown in the figure, while starting the shield machine 52 from the starting pit 51 to excavate the tunnel 53, the shield machine
With the segment assembly device 54 installed at the rear of the 52,
The segment 56 carried in by the segment truck 55 from 51 is assembled and the primary lining is performed. These segments 56
Is transported to the construction site by a truck 57, temporarily loaded on a fixed cradle 59 such as a skid by a cargo handling machine such as a forklift 58, and then a crane installed in the start pit 51 via the cargo handling machine as needed. It is transported to 60 and transferred from the crane 60 to the segment truck 55.

However, in the above-mentioned conventional method, since the segment 56 is temporarily stored, a lot of land around the start pit is required. Also,
This requires a large amount of cargo handling equipment such as forklifts and cranes, resulting in high costs.

It is an object of the present invention to solve the above problems and provide a segment loading facility that does not require a segment loading yard and can reduce the number of cargo handling machinery.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is directed to a segment storage / carrying-in device arranged over an opening and a bottom of a starting pit and a carrying-in of a segment storage / carrying-in device at an opening of the starting pit. An entrance transfer device disposed at the mouth, and an exit transfer device disposed at the carry-out port of the segment storage / transport device at the bottom of the start pit, wherein the segment storage / transport device is the opening of the start pit. A ring body rotatably supported around a horizontal axis parallel to each other above the bottom and the bottom, an endless rotary body wound between these ring bodies, and arranged on the endless rotary body at regular intervals. And a plurality of accommodating sections on which the segments can be placed, and a conveyor device that can transfer the inlet transfer device and the outlet transfer device while supporting the segments from below, and the conveyor device that transfers the segments. Move in and out along the direction It is composed of a movable conveyor moving-out device and a conveyor elevating device capable of elevating the conveyor device within a predetermined range.

Operation In the above configuration, the truck such as a truck having the segments loaded on the bed is stopped so as to face the entrance transfer apparatus and the entrance transfer apparatus is driven. First, the conveyor device is inserted into the lower position of the segment of the truck bed by the conveyor retracting device, and then the conveyor device is raised by the conveyor lifting device to lift the segment. Then, while driving the conveyor device to transfer the segment to the storage portion side of the segment storage / loading device, the segment at the tip of the conveyor device is loaded above the storage portion by the conveyor exit / retract device,
Move the conveyor device down to transfer the segments to the storage section,
Move the conveyor device back. In such a procedure, the segments are directly stored from the trolley to the storage portion of the segment storage / transport device and stored. When the segment is supplied to the shield machine with excavation of the tunnel, the segment is transferred from the storage section to the segment truck by the transfer section transfer device and carried into the tunnel. Therefore, it is possible to eliminate the need for a segment stowage yard near the opening of the start pit, a crane, a forklift used for segment transfer, and the like.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a starting pit formed at the work site for excavating the tunnel 2 from the ground to the excavation position of the tunnel 2. Inside the starting pit 1, a segment storage / carrying-in device 3 extending from above the opening to the bottom is provided. To be done. This segment storage / carry-in device 3 includes a box-shaped case 4 and the case 4
A pair of left and right upper wheel bodies 5 and 6 which are rotatably supported in the upper and lower parts of the inside about a horizontal axis parallel to each other.
A pair of left and right chains (endless rotating bodies) 7 wound between the upper wheel body 5 and the lower wheel body 6, and swingably supported between the left and right chains 7 via a support arm 8 to form a segment 9 And a storage box 10 on which the vehicle can be placed, and a carry-in port 11 is formed at a position corresponding to the opening of the starting pit 1 on one side surface of the case 4 parallel to the horizontal axis and is carried to a position corresponding to the tunnel 2 at the bottom. An outlet 12 is formed. The storage box 10 is formed such that the loading / unloading ports 11 and 12 are notched so that the segment 9 can be loaded and unloaded, and a pair of left and right pedestals 13 that support the segment 9 are disposed at the bottom. Then, for example, the tip of the support arm 8 is guided to the guide rail 14 via rollers or the like, and the storage box 10 is swingably supported by the tip of the support arm 8 to hold the storage box 10 in a horizontal posture. It is configured to move up and down and rotate. Although not shown, the segment storage / carrying-in device 3 is rotatably driven by interlocking the left and right lower wheel bodies 6 with a drive shaft and interlockingly connecting the drive shaft with a rotary drive device.

Directly from the transport truck 21 to the carry-in port 11 is the segment 9
An entrance transfer device 22 for loading and unloading the storage box 10 is provided, and an exit transfer device for unloading and transferring the segment 9 from the storage box 10 to the segment carriage 23 is installed at the unloading port 12. It The transfer devices 22 and 24 at the inlet and the outlet have the same configuration, and only the transfer device 22 at the inlet will be described and the description of the transfer device 24 at the outlet will be omitted.

As shown in FIG. 2, the entrance transfer device 22 supports a plurality of (three in the drawing) segments 9 from below and can move them in the direction of arrow A, and a pair of left and right chain conveyors 25. The conveyor 25 is provided with a conveyor retracting device 26 capable of retracting 25 along the segment transfer direction (direction of arrow A), and a conveyor lifting device 27 capable of lifting the chain conveyor 25 within a predetermined range.

That is, on the pedestal 28, a pair of left and right elevating racks 30 each having traveling rails 29 parallel to each other in the segment conveying direction formed on the outer surface are disposed so as to be movable up and down. Lifting jack 31 is installed and its output shaft 31
a is vertically fixed to the base 28. Further, as shown in FIG. 3, guide pillars 32 having a U-shaped cross section are erected on the left and right sides of the front end portion and the rear end portion, and the guide pillars 32 are slidably contacted with the side surfaces of the lifting platform 30. The guide rollers 33 are rotatably attached. The elevator platform 30, the elevator jacks 30, and the guide rollers 33 constitute a conveyor elevator device 27, and the chain conveyor 25 can be elevated via the elevator platform 30 within the stroke range of the elevator cylinder 31.

The conveyor moving-out device 26 has a conveyor frame 34 movably arranged on an elevating stand 30, and a pair of front and rear traveling frames 35 hanging from the outside of the conveyor frame 34 at predetermined intervals, and an upper surface and a lower surface of a traveling rail 29. A pair of upper and lower traveling rollers 36A, 36B that come into contact with is attached. The upper traveling roller 36A is interlocked with the forward / reverse rotation drive motor 37 disposed in the traveling frame 35 so as to reciprocate the conveyor frame 34. The range shown by the phantom line in FIG. Thus, the chain conveyor 25 can be moved in and out in the segment transfer direction A.

In the chain conveyor 25, a drive sprocket 38A and a driven sprocket 38B are rotatably attached to the front end and the retreat of the conveyor frame 34 about an axis perpendicular to the segment transfer direction A, and a chain is provided between these sprockets 38A, 38B. 39 is wound. Then, a plurality of receiving blocks 40 capable of supporting the segment 9 are provided at relative positions of the chain 39.
Is attached, and the drive sprocket 38A is connected and interlocked with a chain drive motor 41 capable of rotating in the forward and reverse directions. The segment 9 received on the receiving block 40 at the front end portion can be transferred to the rear end portion.

Therefore, as shown in FIG. 4, the entrance transfer device 22 inserts the receiving block below the segment 9 on the loading platform of the truck 21 by the retreating operation (a) by the retracting drive motor 37, and the lifting jack 30 is moved. The segment 9 is lifted by the ascending operation (b), and the retreat / return operation (c) by the move-out drive motor 37, the chain transfer device (d) by the chain drive motor 41, and the projecting operation (e) by the move-out drive motor 37 Storage box 10 for receiving block 40 with 9
It is carried in above the pedestal 13 inside, and the segment 9 is mounted on the pedestal 13 by descending (f). Then, the original position is returned by the projecting return operation (G) and the chain reverse feeding operation (H). In such a cycle, the segment 9 can be loaded into the segment storage / loading device 3. The outlet transfer device 24 operates in the opposite manner to the inlet transfer device 22. In FIG. 4, reference numerals 42 and 44 denote a projecting stroke and a retreating stroke by the conveyor retracting device 26, and 43 denotes a transfer stroke of the chain conveyor 25.

Next, the operation of this segment loading facility will be described.

When the transport truck 21 loaded with the segments 9 arrives, the loading platform is stopped so as to face the entrance transfer device 22, and the entrance transfer device 22 is driven to sequentially carry it into the storage box 10 of the segment storage / carrying device 3. , Store. On the other hand, when supplying the segment 9 to the segment assembling device of the shield machine corresponding to the excavation of the tunnel 2, the segment carriage 23 is stopped so as to face the exit transfer device 24, and the exit transfer device 24 is operated.
Storage box 10 in which the segment 9 is stored by driving
Then, the segment 9 is transferred to the segment carriage 23.

According to the above-described embodiment, the segment 9 carried by the transport truck 21 is stored in the segment storing / carrying-in device 3 in the starting pit 1 and is taken out from the bottom carrying-out port 12 as needed, so that the conventionally required segment A loading yard and a crane for storing 9 are not required, and the transfer devices 22 and 24 are used to move the segment 9 into and out of the segment storage / carrying-in device 3. Can be unnecessary.

Effects of the Invention According to the present invention as described above, the segment storage and loading device arranged in the space of the starting pit can store the segment and can load the segment from the opening to the bottom. The loading yard and crane can be eliminated. Further, since the transfer device for transferring the segment between the storage part of the segment storage / carrying device and the external trolley using the conveyor device is provided at the opening and the bottom of the starting pit, the transfer of the segment can be automated,
The number of cargo handling machines such as forklifts can be reduced.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is a cutaway perspective view of a starting shaft, FIG. 2 is a perspective view of a transfer device, and FIG.
FIG. 4 is a view as seen from the direction of arrows I--I shown in FIG. 2, FIG. 4 is an operation explanatory view of the transfer device, and FIG. 5 is a side view showing a conventional segment loading facility. DESCRIPTION OF SYMBOLS 1 ... Start pit, 2 ... Tunnel, 3 ... Segment storage and loading device, 5 ... Upper wheel, 6 ... Lower wheel, 7 ... Chain, 9 ... Segment, 10 ... Storage box, 11 ... Carrying port, 12 ... Carrying port , 22 ... Inlet transfer device, 24 ... Exit transfer device, 25 ... Chain conveyor, 26 ... Conveyor exit / retract device, 27 ... Conveyor lifting device.

Claims (1)

[Scope of utility model registration request] 1. A segment storage / carrying-in device arranged across an opening and a bottom of a starting pit, an entrance transfer device arranged at an inlet of the segment storage / carrying-in device at the opening of the starting pit, and a starter. An outlet transfer device provided at the carry-out port of the segment storage and loading device at the bottom of the mine, and the segment storage and loading device is provided around a horizontal axis parallel to each other above and below the opening of the starting pit. Consists of a rotatably supported ring body, an endless rotary body wound between these ring bodies, and a plurality of storage sections arranged on the endless rotary body at regular intervals and capable of mounting segments. A conveyor device capable of transferring the inlet transfer device and the outlet transfer device while supporting a segment from below, and a conveyor evacuation device capable of moving the conveyor device in and out along the segment transfer direction. , The conveyor device Segment carrying equipment, characterized in that is constituted by a vertically movable conveyor lifting device in range.