JP2673151B2 - Material supply device for shield machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for supplying a material such as a segment to a shield machine, and more particularly to a shield machine capable of supplying the material without manual labor. The present invention relates to a material supply device.

"Prior Art" As is well known, behind the shield, while excavating the ground with a cutter device provided in the front part of the shield machine having an outer cylindrical skin plate, a segment that is a cylindrical divided body inside the shield machine is excavated. Assembling, and further, by applying a reaction force to the front end of this segment and extending the shield jack inside the shield machine, propel the entire shield machine forward,
This is a method of forming a tunnel underground by repeating these steps.

Conventionally, as a means of supplying a segment to a shield machine, an operator transports a carrier truck equipped with a segment to the rear of the shield machine while pulling it with a battery vehicle, and then unloads the segment with a trolley hoist. Means are commonly used to stock and feed this segment to the elector device with a trolley hoist when needed.

[Problems to be solved by the invention] However, in the conventional segment supply means, when a segment is unloaded from a carrier using a trolley hoist, and the segment is further supplied to the erector device by the trolley hoist, a crane operator is used. It requires a large number of personnel such as workers, assistant workers, and receiving workers, and is heavy (one piece of a segment can weigh up to 1 ton)
Since it is a work to handle, it is difficult to speed up the work to ensure safety.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a material supply device for a shield machine, which can supply segments to the shield machine without human intervention.

"Means for Solving the Problems" The present invention is connected to a rear part of a shield machine that forms a tunnel in the ground so as to be able to move forward together with the shield machine, and receives materials transported by a carrier truck from the rear of the tunnel. A device for delivering to the shield machine, a holding device that receives and holds the material conveyed by the carrier, and a device that is arranged in front of the holding device and receives the material from the holding device to the front. And a transfer device which is disposed in front of the transfer device, receives the material transferred by the transfer device, further transfers the material forward, and supplies the material to the shield machine. , A fork capable of lifting and holding the material loaded in the carrier by being inserted below the material and rising. Sign.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 4 are views showing a material supply device for a shield machine according to an embodiment of the present invention. In the figure, reference numeral 1 is a shield machine that excavates underground to form a tunnel 2.
Reference numeral 3 is a material supply device (hereinafter, simply referred to as “supply device”) provided behind the shield machine 1, and the supply device 3 is a segment lifter provided at the front end of the temporary floor 7 of the tunnel 2. (Holding device) 4, a transfer device 5 provided at the rear of the elector device 8 of the shield machine 1, and a portal crane (transfer device) 6 that transfers the segments 9 from the segment lifter 4 to the transfer device 5 ... It is configured to receive the segment transported by the transport carriage 10 (see FIG. 3) from the rear of the tunnel 2, transfer it to the front, and deliver it to the elector device 8 of the shield machine 1.

The segment lifter 4 is provided with a portal frame 12 configured to be movable on a track 11 laid at the front end of the temporary floor 7, and a vertically movable unit at one end of the portal frame 12, and is provided inside the frame 12. It is composed of a fork 13 provided so as to be able to move forward and backward. The carrier 10 for transporting the segment from the vertical shaft is a portal frame of the segment lifter 3.
It is configured to arrive within 12.

Further, the transport device 5 includes a base 14 having an arcuate cross section provided along the lower end of the tunnel 2 and a roller on the base 14.
A movable table 16 provided so as to be movable back and forth via 15, and the movable table 16 is urged forward so that the front end of the movable table 16 is moved to the erector device 8
It is composed of an extruding jack 17 that extends downward. Further, drive rollers 18, ... Are provided on the upper part of the moving table 16.

The portal crane 6 includes a portal ureme 19 provided at the rear end of the transfer device 5 and one end of the portal crane 19
At the upper end of 19, a rail 20 is connected at the other end to the upper end of the portal frame 12 of the segment lifter 4, and a trolley hoist 21 that can travel along the rail 20. Further, the trolley hoist 21 has a traveling portion 22 that travels along the rail 20 while holding the rail 20.
And a swinging part 23 provided at the lower end of the running part 22 so as to swing horizontally, a gripping part 24 for gripping the segment 9, and a winch 25 for vertically moving the gripping part 24 in a suspended state. ing. The method of gripping the segment 9 by the grip portion 24 is arbitrary, and a suitable method is one that fits into the grout hole or bolt box (not shown) of the segment 9.

The supply device 3 is connected to the rear end of the shield base 1. Therefore, as the shield device 1 is moved forward, the supply device 3 is also moved forward, so that the elector device 8 and the supply device 3 are relatively moved. The positional relationship is always constant.

Further, these devices can be instructed to operate / stop by a central monitoring device (not shown), and can also monitor the operation state.

Next, a method of supplying the segments 9, ... To the elector device 8 of the shield machine 1 by using the supplying device 3 having the above configuration will be described.

When the carrier 10 arrives at the segment lifter 4,
This carrier 10 is used for the frame 12 of the segment lifter 4.
Stop inside.

Next, the fork 13 of the segment lifter 4 is transferred to the carrier truck 10.
By being extended toward, the segments 9, ... Which have been transported by the transport carriage 10 are supported from below. In this state, the carriage 10 is moved rearward so that the carriage 10 can be retracted from the segment lifter 4.

Then, the forks 13 of the segment lifter 4 are supported from below, and the forks 13 are lowered to lower the segments 9, ... To the vicinity of the temporary floor 7.

Next, attach the trolley hoist 21 of the portal crane 6 to the rail
Drive along segment 20 to the top of segment lifter 4. Further, the winch 25 of the trolley hoist 21 is actuated to suspend the grip portion 24, and the grip portion 24 grips one segment 9. When the segment 9 can be gripped, the grip 24 is lifted by operating the winch 25 again.
In this state, the trolley hoist 21 is moved to the upper part of the transport device 5 along the rail 20 to transfer the suspended segment 9 to the transport device 5.

When the trolley hoist 21 reaches the upper part of the transport device 5, the direction of the segment 9 is turned by 90 ° by turning the turning part 23 by 90 °, and then the winch 25 is operated to suspend the gripping part 24, The segment 9 is loaded on the moving table 16 of the carrier device 5. The segment 9 is turned 90 ° because the direction in which the segment 9 is conveyed and the direction in which the segment 9 is assembled by the elector device 8 are different by 90 °.

The loaded segment 9 is transferred forward by the drive roller 18 above the moving table 16 and reaches the front end of the moving table 16. In this state, the above-described transfer process of the segment 9 to the transport device 5 may be performed again, or only one segment 9 may be always resident in the transport device 5.

When the segment 9 has been transferred to the front end of the moving table 16, the pushing jack 17 of the transfer device 5 is extended to move the moving table.
16 The segment 9 at the front end is transferred to the lower part of the erector device 8.

By repeating the above steps, the shield machine 2
Segment 9 to the elector device 8 in accordance with the excavation process of
Can supply ... Here, in the present embodiment, the supply of the segments 9, ...
, The segments 9 can be supplied without human intervention, and the segment 9 can be supplied safely and reliably, and the work efficiency and speed can be increased.

The details of the material supply device for the shield machine according to the present invention are not limited to those in the above embodiment, and various modifications are possible. As an example, the supply device of the present invention can be suitably used not only for supplying the segments 9 ..., But also for supplying other materials.

[Advantages of the Invention] As described in detail above, according to the present invention, a holding device that receives and holds a material conveyed by a carrier, and a material arranged from the holding device in front of the holding device. And a transfer device which is disposed in front of the transfer device, receives the material transferred by the transfer device, further conveys the material forward, and supplies the material to the shield machine. Moreover, since the holding device is configured to include a fork that can be inserted into a lower part of the material loaded on the transport carriage and lifted to hold the material, the devices are sequentially operated. As a result, it is possible to supply materials safely and without requiring manual work. As a result, the material supply work can be performed safely and reliably, and the work efficiency and speed can be increased.

[Brief description of the drawings]

1 to 4 are views showing a material supply device for a shield machine according to an embodiment of the present invention. FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 1 is a sectional view taken along the line III-III 'in FIG. 1, and FIG. 4 is a sectional view taken along the line IV-IV' in FIG. 1 ... Shielding machine, 2 ... Tunnel, 3 ... Material supply device, 4 ... Segment lifter (holding device), 5 ... Conveying device, 6 ... Gate crane (transfer device), 8 ... Electa device , 9 …… Segment (material), 10 …… Transport truck,
13 ... fork.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Soichi Makino 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Yuichi Kikuchi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Inside the Construction Co., Ltd. (72) Inventor Yoshikiyo Aoki 2-16-1 Kyobashi, Chuo-ku, Tokyo Inside Shimizu Construction Co., Ltd. (72) Inventor Sato et al. 2-16-1 Kyobashi, Chuo-ku, Tokyo Inside Shimizu Construction Co., Ltd. (56) Reference Bibliography 1-111800 (JP, U)

Claims (1)

(57) [Claims] 1. A shield machine for forming a tunnel in the ground, which is connected to a rear part of the shield machine so as to be capable of advancing together with the shield machine, for receiving materials conveyed by a carrier truck from the rear of the tunnel and delivering them to the shield machine. A holding device for receiving and holding the material conveyed by the carrier, a transfer device arranged in front of the holding device for receiving the material from the holding device and transferring the material to the front, A transfer device that is disposed in front of the device, receives the material transferred by the transfer device, further transfers the material forward, and supplies the material to the shield machine, and the holding device is loaded on the transfer carriage. A material for a shield machine, characterized by comprising a fork that can be inserted into a lower part of an existing material and lifted to hold the material. Material supply device.