JPH09144488A - Conveyer belt device for vertical conveyance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold soil and sand and muck surely without forcibly deforming a conveyer belt and carry out them continuously onto the ground efficiently, and to facilitate even washing operation and improve even durability. SOLUTION: The vertical conveyer section 9 of a conveyer belt device 2 for vertical conveyance is composed of a trough type lower-side conveyer belt 10 and an upper-side conveyer belt 12, in which cross bars 11 mounted in the belt cross direction are disposed at regular intervals in the longitudinal direction, and the shapes of the cross bars 11 are formed in a shape that the cross bars 11 are fitted into the recessed surface 10a of the lower-side conveyer belt 10. This conveyer belt device is constituted in such a manner that materials to be carried such as soil and sand and muck are housed and held successively in a plurality of approximately trapezoidal sectional-shaped space sections 13 partitioned and formed when the cross bar 11 sides of the upper-side conveyer belt 12 are superposed on the recessed surface 10a side of the lower-side conveyer belt 10 and conveyed onto the ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical conveyor belt device, and more particularly to an endless lower conveyor belt and an upper conveyor belt for sequentially carrying earth and sand excavated from a horizontal shaft to the ground. It concerns the improvement of vertical conveyors.

[0002]

2. Description of the Related Art Conventionally, to transport earth and sand generated in a sewage pit or a shield tunnel during excavation to the ground,
In the horizontal mine, rails were laid and transported by truck, and in the vertical mine connected to the horizontal mine, the earth and sand transported by truck was transferred to the vertical belt, transported to the ground, and discharged on the ground. .

As another conventional example, Japanese Patent Application No. 4-73
In the 163 (Actual Kaihei No. 6-35395) microfilm, the belt is advanced by advancing the front end of the belt by adding a conveyor frame along with the excavation of the excavator and following the advance of the front end of the belt to the return side of the belt in the horizontal shaft. A shear carrying-out device provided with a belt shrinkage stocking device for feeding out is used.

Further, in Japanese Patent Laid-Open No. 3-46908, a series of belts are wound around a horizontal shaft and a vertical shaft so that a horizontal belt conveyor unit arranged in the horizontal shaft can be telescopically moved to a vertical belt conveyor unit arranged in the vertical shaft. The conveyor device is equipped with a take-up device that can be adjusted to the above, and the take-up device is provided with a tensioning means by a weight. By the way, in the recent excavation work of underground tunnels by the shield method as described above, the method of transporting the excavated soil from the vertical shaft has become an important issue, and especially in urban areas, securing the vertical shaft site to serve as an excavation base. It was difficult to do so, and there was a demand for longer distances for excavation from one shaft and more efficient removal of excavated soil.

In particular, a method using a conveyor belt is considered to be advantageous for increasing the distance of excavation. As a conventional method for carrying out excavated soil using a conveyor belt, for example,
According to the applicant of the present application, the slant for improving the transportation efficiency is provided by the horizontal crosspieces provided at equal intervals in the longitudinal direction on the upper surface cover of the base belt, and the corrugated flanges erected at the both ends in the longitudinal direction. A conveyor (Japanese Patent Laid-Open No. 4-251014), a sandwich type conveyor in which earth and sand are sandwiched between two flat conveyor belts and conveyed, are known.

[0006]

However, the former inclined conveyor has no problem in holding and carrying out sediments, but the belt is expensive and there are some problems in the cleaning method. In the latter case of the sandwich type conveyor, since the conveyor belt is deformed forcibly, it is easily damaged and there is a problem in durability.

The present invention has been devised in view of the above-mentioned conventional problems. It does not deform the conveyor belt forcibly, reliably holds soil and sand, and continuously and efficiently. It is an object of the present invention to provide a conveyor belt device for vertical conveyance which can be carried out to the above, can be manufactured at a low cost with a simpler structure, and can be easily washed and improved in durability.

[0008]

SUMMARY OF THE INVENTION To achieve the above object, the present invention forms a lower conveyor belt of a vertical conveyor section in a trough shape and has an upper conveyor belt surface facing a concave side of the lower conveyor belt. In the belt width direction of the lower conveyor belt, horizontal bars corresponding to the trough shape of the lower conveyor belt are formed at regular intervals in the longitudinal direction of the conveyor belt, and the concave side of the lower conveyor belt and the horizontal bar of the upper conveyor belt are overlapped. The gist is that the earth and sand are stored and held in the space that is partitioned and formed in this case, and the soil and sand are sequentially carried out to the ground.

At the earth and sand intake portion from the horizontal mine to the vertical conveyor section, there is provided a shaping guide device for facilitating the horizontal rail provided on the upper conveyor belt to enter between the earth and sand of the lower conveyor belt, and the excavation. A storage device that stores the lower conveyor belt in a continuous state is installed on the ground where the soil is carried out, and when the lower conveyor belt is stretched according to the excavation in the horizontal mine, the lower conveyor belt stored in the storage device is installed. It is also possible to sequentially stretch.

The present invention is constructed as described above, and the earth and sand excavated from the horizontal mine is guided to the concave conveyor side of the lower conveyor belt and the upper conveyor belt through the type guide device provided at the earth and sand intake portion of the vertical conveyor section. Are sequentially supplied to the space formed when they are overlapped with the horizontal rail, and the earth and sand supplied to the space are retained by the concave side of the lower conveyor belt and the horizontal rail of the upper conveyor belt. , Which can be continuously transported to the ground.

That is, since the belt main body is used without being deformed forcibly, the durability is also improved, and it is possible to reliably hold soil and sand and carry it out to the ground continuously and efficiently. Since the main body itself has a simple structure, it can be manufactured at a low cost and can be easily washed. Also, since the lower conveyor belt is stored in a storage device installed on the ground, unlike conventional shear transfer devices that have storage devices in horizontal shafts and vertical shafts, it works in horizontal shafts and vertical shafts. It rarely narrows the space.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a sectional view of an underground tunnel excavation work in which a vertical conveyor belt device 2 according to the present invention is implemented in a vertical shaft 1, and 3 is a horizontal shaft.
Indicates a face in the horizontal mine 3, and the conveyed objects W such as earth and sand excavated by the shield excavator 5 are vertically conveyed by the conveyer conveyor 6 installed in the horizontal mine 3 or the truck 7 or the like. After being carried out to the apparatus 2 side and supplied to the vertical conveyor section 9 of the vertical conveyor belt device 2 by the embedding guide device 8 provided at the earth and sand intake portion of the vertical conveyor belt apparatus 2, it is in a vertical state to the ground G. It is configured to be transported and discharged by.

As shown in FIG. 2, the vertical conveyor section 9 of the vertical conveyor belt device 2 has a trough-shaped lower conveyor belt 10 and a horizontal rail 11 provided in the belt width direction at predetermined intervals in the longitudinal direction. Upper conveyor belt 1 installed in
2 and the shape of the cross rail 11 is formed to fit into the concave surface 10a of the lower conveyor belt 10.

The concave surface 10 of the lower conveyor belt 10
A plurality of space portions 13 having a substantially trapezoidal cross section that are partitioned and formed when the side a of the upper conveyor belt 12 and the side of the horizontal rail 11 are overlapped on the side a.
In order to store and hold the transported objects W such as earth and sand and slides on the ground G
It is configured to be transported to. The embedding guide device 8 provided in the earth and sand intake portion of the vertical conveyor belt device 2 conveys the conveyed objects W such as earth and sand and shears conveyed by the conveyor 6, the dolly 7, etc. It is for efficiently feeding into the plurality of shaped space portions 13 and for facilitating the horizontal rails 11 provided on the upper conveyor belt 12 to enter between the earth and sand of the lower conveyor belt 10. The plate-shaped blades 15 are attached to the outer peripheral surface of the rotating body 14 at predetermined intervals.

A storage device 16 for storing the lower conveyor belt 10 in a continuously folded and stacked state is installed on the ground G near the earth and sand discharging part 18 of the vertical conveyor part 9. Reference numeral 16 is configured such that the lower conveyor belt 10 is sequentially drawn and stretched when the lower conveyor belt 10 is stretched by the shield excavator 5 in accordance with the excavation in the horizontal shaft 3.

Reference numeral 17 denotes a length and tension adjusting device for the lower conveyor belt 10 provided in the storage device 16. In the embodiment of the present invention, as described above, the trough type lower conveyor belt 10 and the upper conveyor belt 12 in which the horizontal rails 11 provided in the belt width direction are arranged at a predetermined interval in the longitudinal direction as described above. The conveyor belt device 2 for vertical conveyance constituted by the above is installed, and the conveyed object W such as earth and sand or shear excavated from within the horizontal pit 3 is transferred to the concave surface 10a side of the lower conveyor belt 10 via the shaping guide device 8. When the horizontal conveyor 11 of the upper conveyor belt 12 is overlapped, it is sequentially supplied to the space 13 defined and formed, and the transported material W such as earth and sand supplied to the space 13 is the concave surface 1 of the lower conveyor belt 10.
It is held by the side 0a and the cross rail 11 of the upper conveyor belt 12 and can be continuously carried out to the ground G.

That is, since the belt bodies of the lower conveyor belt 10 and the upper conveyor belt 12 are used without being deformed forcibly, the durability is also improved, and the soil and sand are surely retained to continuously and continuously. Moreover, since it can be efficiently transported to the ground and the configuration is simple, it can be manufactured at low cost,
Furthermore, the cleaning work can be easily performed.

[0018]

As described above, the present invention forms the lower conveyor belt of the vertical conveyor section in a trough shape, and
In the belt width direction of the surface of the upper conveyor belt facing the concave side of the lower conveyor belt, cross rails corresponding to the trough shape of the lower conveyor belt are formed at regular intervals in the longitudinal direction of the conveyor belt, and the lower side is formed. The concave and convex sides of the conveyor belt and the horizontal rails of the upper conveyor belt were stacked and stored in a space defined by the space so that they could be carried out to the ground one by one. No, there is an effect that it can reliably carry soil and sand and can be carried out to the ground continuously and efficiently, can be manufactured at a low cost with a simpler structure, and that cleaning work is easy and durability can be improved. .

Further, since a patterning guide device is provided in the earth and sand intake portion from the inside of the horizontal shaft to the vertical conveyor section,
The horizontal rail provided on the upper conveyor belt can easily enter between the earth and sand of the lower conveyor belt, and it is possible to efficiently convey the conveyed objects such as earth and sand or the like into the plurality of spaces having the substantially trapezoidal cross section. .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of excavation work for an underground tunnel in which a conveyor belt device for vertical transportation according to the present invention is implemented in a vertical shaft.

FIG. 2 is an enlarged perspective view of a partially cut vertical conveyor belt device.

[Explanation of symbols]

1 Vertical shaft 2 Vertical conveyor belt device 3 Horizontal shaft 4 Face 5 Shield excavator 6 Transfer conveyor 7 Truck 8 Modeling guide device 9 Vertical conveyor section 10 Lower conveyor belt 10a Lower conveyor belt concave surface 11 Horizontal rail 12 Upper conveyor belt 13 Space part 14 Rotating body 15 Blade 16 Sediment discharge part 17 Tension adjusting device 18 Sediment discharge part G Ground W Transported goods

Claims (3)

[Claims] 1. When the earth and sand excavated from the horizontal shaft is vertically installed in the vertical shaft, it is held between the lower conveyor belt and the upper conveyor belt of an endless vertical conveyor section so that the earth and sand can be successively carried out to the ground. In the conveyor belt device for vertical conveyance, the lower conveyor belt of the vertical conveyor section is formed in a trough shape, and the lower conveyor belt faces downward to the concave side of the lower conveyor belt in the belt width direction. Lateral rails corresponding to the trough shape of the side conveyor belt are formed at regular intervals in the longitudinal direction of the conveyor belt, and are formed when the concave side of the lower conveyor belt and the lateral rail of the upper conveyor belt are overlapped. A vertical conveyor belt characterized by accommodating and holding earth and sand in a space and successively carrying it out to the ground. 2. A patterning guide device for facilitating the horizontal rail provided on the upper conveyor belt to enter between the sediments of the lower conveyor belt at a portion of the earth and sand taken in from the horizontal shaft to the vertical conveyor section. The conveyor belt device for vertical transportation according to item 1. 3. On the ground where the excavated earth and sand is carried out,
A storage device that stores the lower conveyor belt in a continuous state is installed, and when the lower conveyor belt is stretched according to the excavation in the horizontal shaft, the lower conveyor belt accommodated in the storage device is sequentially stretched. The conveyor belt device for vertical conveyance according to claim 1 or 2.