JPH079156B2 - Segment transfer device - 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 transferring a segment into a tunnel below a shaft in shield construction and the like.

[0002]

2. Description of the Related Art Conventionally, the transportation of such a segment is carried out by hanging it directly onto a tunnel carriage under a vertical shaft by a bridge crane on the ground, or by loading the segment by an elevator for a tunnel carriage inside a vertical shaft. It was done by lowering the carrier truck in the tunnel below.

[0003]

In the former method, the suspended load is shaken in a strong wind, which is dangerous, and the segment may collide with a pit wall or the like and may be damaged, so that the work cannot be performed. In addition, the transfer work to the transport vehicle in the tunnel takes time for positioning by the crane operation due to the load, which affects the work cycle time. In addition, there is a safety problem such as being caught in a load when operating a heavy object (one ton per segment).

On the other hand, the latter method has a problem that a large space is required in the vertical shaft, and the equipment for raising and lowering the heavy carriage vehicle in the tunnel (two vehicle connection) becomes excessive.

An object of the present invention is to provide a segment transfer device which automates segment transfer, shortens the work cycle time, and saves labor and safety.

[0006]

According to the present invention, a segment elevating device which is erected from the bottom to the upper part of a vertical shaft to elevate and lower a loading platform, and self-propelled between the loading platform and the segment loading position and the segment transfer position. There are provided a transfer carriage, a self-propelled carriage that travels in the tunnel, and a segment transfer device that transfers a segment from the transfer carriage at the transfer position to the self-propelled carriage.

It is preferable to load, for example, three segments on the transfer carriage.

It is preferable that the self-propelled carriage pulls one segment carriage and loads three segments each.

Further, a series of operations such as movement of the transfer carriage to and from the carrier, raising and lowering of the carrier, and transfer from the transfer carrier to the self-propelled carrier by the segment transfer device are automatically performed. It is preferable to configure.

[0010]

In the segment transfer device configured as described above, when the segments are loaded on the transfer cart and the automatic start button is pressed, the transfer cart moves into the loading platform. Then, the segment elevating device lowers the loading platform below the shaft, and the transfer carriage moves to the transfer position. Then, the segment transfer device transfers the segment from the transfer carriage to the segment carriage. Then, the transfer carriage moves up and down to carry the next three segments, and moves to the transfer position again. Then, the segment transfer device transfers the segment from the transfer carriage to the self-propelled carriage, and one cycle of segment transportation is completed.

[0011]

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

In FIG. 1 and FIG. 2, the segment conveying device is a segment lift 1 which is a segment elevating device provided from the upper portion A1 to the bottom portion A2 of the vertical shaft A, and is provided on the bottom portion A2 of the vertical shaft A so as to be movable in the tunnel B direction. The segment setter 10, which is the segment transfer device, and the self-propelled carriage 20 traveling in the tunnel B are roughly configured.

The segment lift 1 is provided on a bottom portion A2 of the shaft A and is provided with a gate-shaped post 2 supported on a side portion A3 by a stay 5, and is provided on the post 2 so as to be vertically movable by an elevator device (not shown). It is composed of a carrier 3 which is a loading platform, and a transfer carriage 4 which automatically travels between the carrier 3 and the upper portion A1 and the bottom portion A2 of the shaft A. At the bottom A2 of the shaft of this post 1, a rail 6 for the transfer truck 4 is provided on the tunnel B side.
And a safety net fence 7 is stretched on the side of the tunnel.

The segment lift 1 has a carrying load (including the carrier 3) of, for example, 5 tons and a lift of, for example, about 22 m.
Thus, for example, three segments C can be conveyed.

The carrying device 3 is provided with rails for the transfer carriage 4, an elevating device not shown in the lower part, and elevating guide rollers not shown in the side part. Further, there is provided a carriage stopper (not shown) for fixing the transfer carriage 4 so that the transfer carriage 4 does not move due to vibration or the like while moving up and down. The elevating device is provided with an elevating motor with a planetary speed reducer, and elevates and lowers via a pin rack provided on the mast 2 by a sprocket.

In FIGS. 3 and 4, the segment setter 10 is provided with a gate-shaped frame 11 that runs on rails 17 and 17, and a trolley 12 that can traverse on the frame 11. The trolley 12 has a segment transfer hanger 1 that is lifted and lowered by a lifting device (not shown).
3 is provided, and the suspension 13 has a hydraulic cylinder 15,
Claw 1 that opens and closes by 15 to clamp segment C
6, 16 are provided.

The traveling of the frame 11 and the traverse of the trolley 12 are driven by a motor with a cyclo speed reducer (not shown), and the speed is controlled by inverter control.

The lifting device is provided with two hydraulic cylinders, and the lifting tool 13 is provided with four guide shafts 14. Further, the hydraulic cylinder is driven by a variable discharge pump, and a hydraulic circuit is provided so that the suspending tool 13 does not descend when stopped.

In FIG. 5, the self-propelled carriage 20 pulls a segment carriage 21 and travels on rails 22 and 22 to load three segments C each.

In FIG. 6, a lift control panel 30 and a vertical shaft operating panel 31 are provided at the vertical shaft upper portion A1, a vertical shaft operating panel 32 is provided at the vertical shaft bottom portion A2, and a segment setter 10 is provided with a segment. A setter control panel 33 is provided, and the control panels 30, 33 and the operation panels 31, 32 are mutually connected by a cable 36. The lift control panel 30 is connected to the carrier 3 via a relay box 34 by a cable 37, and the vertical operation panel 31 is connected with respective detectors for positioning and safe operation (not shown). 33 has a pendant switch 35
Are connected.

Next, the mode of segment transportation will be described with reference to FIGS. 7 and 8. The reference numerals in FIG. 8 indicate ST in FIG.
It matches the EP code.

When the operator on the vertical shaft sets the segment C on the transfer carriage 4 and presses the automatic start button of the vertical shaft operation panel 31 (STEP A, 1), the transfer carriage 4 moves to the carrier 3 ( STEP). Then the lift 1 is activated,
The carrying device 3 having the transfer carriage 4 is started to be transported down the shaft (STEP c). When the carrier 3 arrives at the bottom of the shaft, the transfer carriage 4 moves from the carrier 3 onto the rails 6 and 6 at the bottom of the shaft (STEP D), and when it reaches the transfer position of the setter 10 (STEP D1), the hydraulic cylinder 15, 15 contracts, and the segment C is grasped by the claws 16, 16 (STEP
F). Next, when the transfer carriage 4 moves into the carry device 3 (S
TEP key), the lift 1 is activated, and the transfer carriage 4 arrives on the shaft (STEP). Then, the transfer carriage 4 is the carrier 3
Move from inside to the segment loading position (STEP
K) When the vertical shaft operator sets the segment C on the transfer carriage 4 and presses the lift start button (STEP co, co 1), the transfer carriage 4 moves into the carrier 3 (STEP).
Service). Next, the lift 1 is activated, and the carrying device 3 is started to be transported down the shaft (STEP Si). The above STEP keys are
It is carried out in parallel with the following STEPs. On the other hand, when the self-propelled carriage 20 pulls the segment carriage 21 and arrives below the shaft (STEP 1), the setter 10 transfers the segment C to the segment carriage 21 (STEP and pattern 1 in FIG. 3). Next, when the STEP 3 carrier 3 arrives at the bottom of the shaft, the transfer carriage 4 moves from the carrier 3 and arrives at the setter transfer position (STEP T, T 1), the setter 10 moves the segment C to the self-propelled carriage 20. (STEP-NO and pattern 2). Then, when the transfer is completed (STE
Pno 1), the self-propelled carriage 20 starts in the tunnel B (S
TEP 2), then the transfer carriage 4 moves into the carrier 3 (STEP C), the lift 1 is activated, and when the transfer carriage 4 arrives at the vertical shaft (STEP H), the transfer carriage 4 is moved. Move from 3 to the segment loading position (STEP), 1
The segment transportation of the cycle ends.

[0023]

Since the present invention is constructed as described above, it has the following effects.

(1) It is possible to improve the safety by limiting the transportation from above the shaft to below the shaft in a specific space within the segment lift.

(2) Unstable positioning work for transshipment into a mine segment carrier by a crane on the ground is not required, and the work cycle time can be greatly shortened.

(3) A series of operations for segment transportation from the segment stockyard on the ground to the face can be automated in cooperation with the operation cycle of the self-propelled carriage for transporting the segment in the mine.

(4) Due to the transshipment of segments, it is possible to eliminate labor, which conventionally required two persons, for example, and save labor.

[Brief description of drawings]

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

FIG. 2 is a horizontal sectional view of FIG.

FIG. 3 is a plan view showing an arrangement under a vertical shaft.

FIG. 4 is a front view showing a segment setter.

FIG. 5 is a side view showing a self-propelled carriage and a segment carriage.

FIG. 6 is a vertical sectional view showing a control system.

FIG. 7 is an operation flowchart.

8 is a vertical sectional view for explaining each STEP of FIG. 7. FIG.

[Explanation of symbols]

 A ... Vertical shaft C ... Segment 1 ... Segment lift 3 ... Transporter 4 ... Transfer truck 10 ... Segment setter 12 ... Trolley 13 ... Transfer lifting device 15 ...・ Hydraulic cylinder 16 ・ ・ ・ Claws 20 ・ ・ ・ Self-propelled truck 21 ・ ・ ・ Segment truck 30 ・ ・ ・ Lift control panel 31 ・ ・ ・ Vertical operation panel 32 ・ ・ ・ Vertical operation panel 33 ・ ・ ・ Segment setter control panel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tsutomu Imagawa Tsutomu Imagawa Tokyo, Akasaka DK Bldg. 9-3 Moto-Akasaka, Minato-ku, Tokyo 9th floor of Kashima Construction Co., Ltd. (72) Inventor Manabu Shibata Minato-ku, Tokyo Former Akasaka 1-chome 3-8 Akasaka DK Building 9F Kashima Construction Co., Ltd. Tokyo Branch (56) References JP-A-2-194297 (JP, A) JP-A-1-290900 (JP, A)

Claims (1)

[Claims] 1. A segment elevating device which is erected from a bottom to an upper part of a vertical shaft to elevate and lower a loading platform, a transfer truck which is self-propelled between the loading platform and a segment loading position and a segment transfer position, and travels in a tunnel. A segment transfer device comprising: a self-propelled carriage and a segment transfer device that transfers a segment from the transfer carriage at the transfer position to the self-propelled carriage.