JPH10212036A - Underground conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underground conveyor device that can apply a continuous unloader. SOLUTION: This conveyor device is provided with a conveyor pit 9 excavated near the ground surface along a conveying path of bulk cargo 5, a belt conveyor 11 installed in the conveyor pit 9, a plurality of movable floor plates 14 provided in such a way as to rise and fall in relation to the ground surface 1 and to be able to cover the conveyor pit 9 from above, and a fluid pressure cylinder 18 that can make the movable floor plates 14 rise and fall. The movable floor plate 14 in a required place is raised by the fluid pressure cylinder 18 in conformity to a travel range during unloading of a continuous unloader to open the conveyor pit 9. When unloading is not performed, the movable floor plates 14 are brought down by the fluid pressure cylinder 18 to cover the conveyor pit 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground conveyor system.

[0002]

2. Description of the Related Art Conventionally, a belt conveyor has been used as a means for transporting bulk cargo such as coal and ore discharged from a cargo hold of a ship berthing to a wharf by a land-side or ship-side unloader to a storage facility near the wharf. May be applied.

When a belt conveyor as a means of transporting bulk cargo is installed on a public wharf, a tunnel 2 excavated near the ground surface 1 of the wharf as shown in FIGS.
A belt conveyor 3 is installed inside the belt conveyor, and a loading hole 7 for placing the bulk cargo 5 unloaded by the unloader 4 on the endless belt 6 of the belt conveyor 3 is opened at a predetermined interval above the tunnel 2. Further, a closing lid 8 capable of closing the charging hole 7 is prepared, and the belt conveyor 3 is closed.
Must not interfere with the operation of unloading and loading other cargo at public wharfs.

[0004]

However, assuming that the belt conveyor 3 is installed underground as shown in FIGS. 3 and 4, the supply position of the bulk cargo 5 to the belt conveyor 3 is the location where the input hole 7 is provided. Therefore, a continuous unloader that unloads continuously while self-propelled along the belt conveyor 3 cannot be applied to the means for unloading bulk cargo 5 from a ship.

The present invention has been made in view of the above circumstances, and has as its object to provide an underground conveyor device to which a continuous unloader can be applied.

[0006]

In order to achieve the above object, in an underground conveyor device according to the present invention, a conveyor pit excavated near the ground surface along a bulk cargo transfer path, and a belt installed in the conveyor pit are provided. The vehicle includes a conveyor, a plurality of movable floorboards provided to be able to undulate with respect to the ground surface, and capable of covering the conveyor pit from above, and an actuator capable of raising and lowering the movable floorboard.

In the underground conveyor device of the present invention, the movable floor plate is raised by the actuator to open a required portion of the conveyor pit, so that bulk cargo can be supplied onto the belt conveyor at the relevant position. By laying down the floorboard to cover the conveyor pits, the surface above the belt conveyor at that location can be used for various other purposes.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an example of an embodiment of an underground conveyor device according to the present invention. In the drawings, portions denoted by the same reference numerals as those in FIGS. 3 and 4 represent the same components. .

Reference numeral 9 denotes a conveyor pit, which is excavated near the ground surface 1 so as to be parallel to the running direction of the continuous unloader 10.

Reference numeral 11 denotes a belt conveyor. The belt conveyor 11 is mounted on the support pit 9 at a predetermined pitch with a support structure 12 extending on the floor of the conveyor pit 9. An endless belt 6 wound around rollers 13 and a belt pulley (not shown) and supported by the rollers 13 so as to be able to move around.
And

Reference numeral 14 denotes a movable floor plate.
Has the required width and length, and has one side (base side) in the width direction
Is a pin hinge 1 provided on one upper edge of the conveyor pit 9
5 and the other side (tip side) is in surface contact with the other upper edge of the conveyor pit 9 so that the upper surface is
The movable pits 14 cover the conveyor pit 9 over its entire length from above.

Further, fluid pressure cylinders 18 are arranged below the movable floor plate 14, respectively.

A base end of the cylinder body of the hydraulic cylinder 18 is swingably attached to a side wall surface below the pin hinge 15 of the conveyor pit 9 via a pin 16, and a distal end of a piston rod of the hydraulic cylinder 18. The portion is connected to the back surface of the movable floor plate 14 via a pin 17, and the movable floor plate 14 is raised and lowered by moving a rod 19 of a hydraulic cylinder 18 forward and backward.

The operation of the underground conveyor shown in FIGS. 1 and 2 will be described below.

When the unloading operation of the bulk cargo 5 is performed by the continuous unloader 10, the unloading operation of the continuous unloader 10 at that time is located within a traveling range (depending on the hatch position and hatch length of the target ship). A fluid pressure cylinder corresponding to each of the plurality of movable floor plates is operated in a direction in which a rod moves forward.

When the rod 19 of the fluid pressure cylinder 18 operates in the forward direction, the distal end side of the movable floor plate 14 is pushed up about the pin hinge 15 and turned upward, whereby the movable floor plate 14 stands up, and the conveyor of that portion is raised. Pit 9 is opened.

Thereafter, the continuous unloader 10 is operated to supply the bulk cargo 5 to the belt conveyor 11 from the portion where the conveyor pit 9 is opened, and the unloading operation of the bulk cargo 5 is continuously performed.

When the above-mentioned unloading operation is completed and the next unloading operation is started, the rod 19 retreats the fluid pressure cylinder 18 corresponding to each of the plurality of movable floor plates 14 in the portion opened to the front of the conveyor pit 9. When actuated in the direction, the movable floor plate 14 is pulled down about the pin hinge 15 and pivots downward, so that the movable floor plate 14 covers the conveyor pit 9.

Further, as described above, the continuous unloader 10 is repeatedly opened and closed by opening and closing the conveyor pit 9 in accordance with the traveling range during the unloading operation of the continuous unloader 10. Unloading work of bulk cargo 5 is performed.

As described above, in the underground conveyor device shown in FIGS. 1 and 2, the movable floor plate 14 is raised by the fluid pressure cylinder 18 to open the conveyor pit 9 at the place where the continuous unloader 10 is to be unloaded. It becomes possible to continuously supply the bulk cargo 5 on the belt conveyor 11 at a location.

Further, the movable floor plate 14 is turned down by the fluid pressure cylinder 18 to cover the conveyor pit 9 other than the unloading target position of the continuous unloader 10, so that the ground surface 1 above the belt conveyor 11 at the relevant position is variously changed. It can be used for a purpose (for example, vehicle traffic).

Incidentally, the underground conveyor device of the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0024]

As described above, according to the underground conveyor device of the present invention, the conveyor pit can be opened and covered as required by raising and lowering the movable floor plate by the actuator. The bulk cargo can be continuously supplied at the required position on the belt conveyor at any time, and other places except the bulk cargo supply area or the unloading work of the bulk cargo is suspended. The upper surface of the moving floor plate of the conveyor pit covered with the time can have an excellent effect that it can be used for various other purposes such as traffic of vehicles as well as the ground surface.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of an embodiment of an underground conveyor device of the present invention.

FIG. 2 is a plan view of a quay equipped with the continuous unloader to which the underground conveyor device of FIG. 1 is applied.

FIG. 3 is a cross-sectional view illustrating an example of a conventional underground conveyor device.

FIG. 4 is a plan view of a quay equipped with the underground conveyor device of FIG. 3;

[Explanation of symbols]

 Reference Signs List 1 ground surface 5 bulk cargo 9 conveyor pit 11 belt conveyor 14 movable floor plate 18 fluid pressure cylinder (actuator)

Claims (1)

[Claims] 1. A conveyor pit excavated in the vicinity of the ground surface along a transport route of bulk cargo, a belt conveyor installed in the conveyor pit, and a conveyor pit that is provided so as to be able to undulate with respect to the ground surface and covers the conveyor pit from above. An underground conveyor device comprising: a plurality of movable floorboards to be obtained; and an actuator capable of raising and lowering the movable floorboards.