JP3009985B2 - Vertical transport device and vertical transport method for tunnel construction vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical transportation device and a vertical transportation method for vertically transporting vehicles used for tunnel construction, such as a scrap steel car and a capsule car, in a tunnel when constructing a tunnel. It is.

[0002]

2. Description of the Related Art When tunnel construction is performed by a shield method or the like, a capsule car using a capsule transportation system and other vehicles are used to transport materials such as segments, earth and sand, and the like. In this case, there is a problem how to perform vertical transportation in the shaft in relation to the operation of the vehicle inside and outside the tunnel.

As an efficient method, it is conceivable to provide a facility for vertically transporting a construction vehicle inside a shaft, and conventionally, as a means for vertically transporting a construction vehicle in a shaft during tunnel construction. The following two methods are known.

(1) Ferris wheel system Japanese Patent Application Laid-Open No. 63-110399 discloses a ferris wheel system comprising a chain conveyor arranged vertically in a shaft and a gondola for storing a capsule car for transporting materials. Is described.

[0005] FIG. 5 shows a vertical transport device 2 of the ferris wheel type.
The chain conveyor 22 includes a sprocket 22a installed at the top of the shaft, a pair of sprockets 22b installed at the bottom of the shaft, and a sprocket 2a.
Endless chain 23 wound around 2a, 22b
A plurality of gondolas 24 are attached to the endless chain 23 via connection members 25.

The gondola 24 has a connecting member 25
, And is always kept horizontal by being pivoted to the front end of the vehicle, and the front and rear surfaces are open. The structure other than the opening covers the stored vehicle 26.

(2) Elevator system The elevator system is composed of a winch installed at the upper part of a shaft and a pallet for storing vehicles and the like, and transports the vehicle together with the pallet by winding up (lowering) wires.

[0008]

The ferris wheel system requires a gondola to house the vehicle, so that the equipment becomes large-scale and the vehicle getting-in mechanism becomes complicated. In addition, since a large number of gondolas are driven to be suspended, a large driving force is required. Furthermore, the mechanism requires a large installation volume in the shaft, such as a gondola passing through a sprocket together with the endless chain.

In the elevator method, since the pallet is transported by a single pallet, a time for returning the pallet is required, and it is difficult to cope with a transport cycle of a capsule car or the like that continuously arrives and leaves.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art, and it is an object of the present invention to efficiently perform vertical transportation of a vehicle in a shaft in a tunnel in a limited space with a minimum power. It is an object of the present invention to provide a vertical transfer device and a vertical transfer method that can be used.

[0011]

SUMMARY OF THE INVENTION A vertical transport device for a vehicle for tunnel construction according to the present invention comprises a pair of endless chains driven by sprockets installed at upper and lower portions of a shaft at predetermined intervals in front and rear directions. The hooking means is incorporated at the corresponding position of the endless chain, and the hooked portions provided at the front and rear of the construction vehicle can be detached.

The present invention is intended for vertical transportation of a capsule car traveling mainly by blowing and suctioning air from a blower in a capsule transportation pipeline installed in a tunnel. Alternatively, the present invention can be applied to vertical transportation in a shaft of various construction vehicles moving along a roadbed.

The vehicle is supported at the front and rear hooked portions by hooking means incorporated as a chain attachment, and in this state, the vehicle is raised and lowered in the shaft by driving the endless chain. The structure of the hooking means and the hooked portion is not particularly limited, but may be a simple structure such as a pin and an angled hook on which the pin is hooked.

In the vertical transport method of a vehicle for tunnel construction according to the present invention, when the vertical transport device transports the vehicle in the vertical direction of the shaft, the driving speed of the endless chain is inverter-controlled. By synchronizing with the operation cycle inside and outside the tunnel of vehicles such as capsule cars, the vertical transport device can be used efficiently, the time lag is eliminated, and it is necessary to provide more chain attachments with hooking means than necessary Disappears.

[0015]

Next, the illustrated embodiment will be described.

FIGS. 1 to 3 show an embodiment in which the present invention is used for vertical transport of a capsule car 9 in a shaft for shield tunnel construction.

FIG. 2 shows a state in which the capsule wheel 9 is supported by the vertical transport device 3. A mountain-shaped hook 8 as a hooked portion is provided before and after the capsule wheel 9, and a pair of front and rear endless chains 5 are provided. The hooks 8 in front and behind the capsule wheel 9 are hooked by the pins 7 of the built-in chain attachment 6 (see FIGS. 3 (a) and 3 (b)), and the capsule wheel 9 is lifted or lowered in that state. It has become.

In FIG. 2, reference numeral 10 denotes a pressure receiving plate,
Reference numeral 11 denotes a main wheel, reference numeral 12 denotes a guide wheel, and reference numeral 13 denotes a shock absorber. In this embodiment, a hook 8 formed by machining a steel material into a mountain shape is fixed between two shock absorbers 13.

FIG. 1A shows the positional relationship between the pipeline 14 at the end of the vertical shaft of the double-track capsule transportation system installed in the tunnel and the vertical transport device 3 in the vertical shaft, and FIG. 1B shows the vertical shaft. 1 shows a basic structure of a vertical transport device 3 in the inside.

The capsule wheel 9 loaded with materials such as segments is placed in the capsule stacking section 15a at the top of the shaft, and the endless chain 5 having passed through the sprocket 4g while standing by.
The pin 7 (see FIGS. 3A and 3B) of the chain attachment 6 incorporated in the hook locks the hook 8 of the capsule wheel 9 from below, and lifts the capsule wheel 9.

In a state where the capsule wheel 9 is suspended, the capsule wheel 9 passes through the sprocket 4a and passes through the capsule wholesaler 16 at the bottom of the shaft.
a, the capsule wheel 9 comes in contact with the capsule wholesaler 16a, and the pin 7 is released from the hook 8.

In this embodiment, a departure zone 14c, an arrival-side braking zone 14d, and an arrival zone 14e are provided in pipelines 14a and 14b forming a double track in the tunnel. The capsule wheel 9 suspended from the wholesaler 16a is departed from the departure zone 14c, sent to the face through the pipeline 14a by blowing or suction of a blower, etc., and wholesales the materials and the like loaded on the capsule wheel 9.

The capsule wheel 9 loaded with earth and sand at the face arrives at the arrival zone 14e while decelerating in the braking zone 14d through the pipeline 14b, and reaches the pin 7 passing through the sprocket 4b of the vertical transport device 3 at the capsule storage portion 15b. The capsule wheel 9 is lifted by the hook 8 and then rises in the shaft, and after passing through the sprocket 4c at the top of the shaft, the pin 7 comes off from the hook 8 by grounding to the capsule wholesaler 16b.

Thereafter, the capsule wheel 9 having loaded and unloaded earth and sand, loaded materials, and the like is again sent to the capsule storage portion 15a at the upper part of the shaft, and the same cycle is repeated thereafter.

In this cycle, the driving speed of the endless chain 5 is controlled by an inverter so that the capsule wheel 9 is driven.
It is desirable to synchronize with the operation cycle inside and outside the tunnel.

As examples, the capsule wheel 9 has a length of about 4.5 m, its own weight is about 2.5 t, the loading weight is 7.5 t, and the vertical transport device 3 has a head of about 30 m.
The driving speed of the endless chain 5 is a maximum of 50 m / min, and the distance between the front and rear endless chains 5 is about 5 m.

FIG. 4 shows another embodiment in which the present invention is used for vertical transport of a capsule car in a shaft, in which reference numerals 2 and 3 denote a shield tunnel and a shield tunnel, respectively.

In this embodiment, a single line pipe 14 is provided in the shield tunnel 2, and the capsule carrier 9 is transported in the vertical direction by the vertical transport device 3 installed along the shaft 1, and materials and the like in the tunnel construction are sent. And a system for discharging earth and sand.

The basic structure is the same as that of FIG. 1, but is simplified in correspondence with the single-line pipe 14.

[0030]

According to the present invention, the support of the vehicle in the vertical transportation is performed by attaching / detaching a hooking means such as a pin as a chain attachment attached to the endless chain and a hooked part provided on the vehicle side. No special storage device such as a gondola or pallet is required, the equipment inside the shaft can be made compact, and it can be installed even in a narrow shaft.

There is no time lag unlike the elevator system, and it is possible to carry the vehicle in accordance with the operation of vehicles that continuously arrive and leave.

By controlling the driving speed of the endless chain by the inverter, a more efficient system can be formed with respect to the operation and transportation of the vehicle, and the chain attachment and the unloading facility can be simplified.

[Brief description of the drawings]

FIG. 1 shows an outline of a case where the present invention is used for vertical transportation of a capsule car in a shaft, and FIG. 1 (a) is a plan view showing a positional relationship between a capsule transportation system installed in a tunnel and a vertical transportation device of the shaft. FIG. 1 (b) is a schematic diagram showing the basic structure of a vertical transport device in a shaft.

2 (a) is a plan view, FIG. 2 (b) is a front view, and FIG. 2 (c) is a side view, showing a support state of the vehicle by the vertical transport device of the present invention.

FIG. 3 shows a hooking means as a chain attachment;
FIG. 2A is a side view corresponding to FIG. 2C, and FIG. 2B is a front view corresponding to FIG. 2B, showing a state where the vehicle is hooked to a hooked portion on the vehicle side.

FIG. 4 is a vertical sectional view of a shaft showing another embodiment when the present invention is used for vertical transport of a capsule car in the shaft.

FIG. 5 is a schematic view of a conventional vertical transport device of a ferris wheel type.

[Explanation of symbols]

1 ... shaft, 2 ... shield tunnel, 3 ... vertical transportation device,
4: Sprocket, 5: Endless chain, 6: Chain attachment, 7: Pin, 8: Hook, 9: Capsule car, 10: Pressure receiving plate, 11: Main wheel, 12: Guide wheel, 13: Shock absorber, 14: Pipe Road, 15… Capsule stacking part,
16 ... Capsule wholesale department,

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Jin Shibuya 1-10-4 Minamidai, Kawagoe-shi, Saitama Obayashi Corporation Tokyo Machinery Plant (58) Field surveyed (Int. Cl. ⁷ , DB name) E21D 11 / 40 E21F 13/04 E21D 13/00 E21D 13/08

Claims (2)

(57) [Claims] 1. A pair of endless chains driven by sprockets installed at the upper and lower parts of a shaft are arranged at predetermined intervals in front and rear, and hooking means are incorporated at corresponding positions of the front and rear endless chains, and the front and rear of the vehicle are installed. A vertical transport device for a tunnel construction vehicle, wherein the provided hooked portion is detachable by the hooking means. 2. A pair of endless chains driven by sprockets installed at the upper and lower portions of a shaft are arranged at predetermined intervals in front and rear, and hooking means are installed at corresponding positions of the front and rear endless chains to arrive at a transport position. When the vehicle is transported in the vertical direction by driving the endless chain, the driving speed of the endless chain is controlled by inverter control. A vertical transport method for a vehicle for tunnel construction, wherein the method is synchronized with an operation cycle inside or outside a tunnel.