JPH039280B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for transporting ore, coal, scraps, etc. from a face of a mine, tunnel construction, etc.

Conventionally, the above-mentioned shear and the like have been sequentially loaded onto multiple dump trucks that are parked at the face using a shovel truck, etc., and then transported out of the mine. Since the traveling time is relatively short, the ratio of waiting time to the total time required for carrying out is high, resulting in extremely low vehicle handling efficiency. Therefore, not only is it uneconomical as the number of dump trucks required per unit amount of transport increases, resulting in increased expenses such as personnel costs and fuel costs, but also environmental pollution inside the mine due to vehicle exhaust gas increases as the total travel time increases. There were disadvantages such as an increase in

Furthermore, as mentioned above, it takes a considerable amount of time to remove the shear and the like from the face, so the next blast mining operation cannot be carried out during that time, resulting in an increased waiting time for the blast mining operation.

The present invention was proposed in order to eliminate the above-mentioned conventional drawbacks all at once. A plurality of loading platforms are arranged at the face of mines, tunnel construction, etc., and shear etc. are sequentially loaded with a shovel truck etc. Using a self-propelled vehicle equipped with a loading/unloading device, the loading platform, loaded with shear, etc., is sequentially transferred to the rear of the face in the mine and temporarily stored, and after the temporary storage is completed, the next blasting and mining operation is carried out. The gist is to sequentially transport each of the temporarily placed cargo platforms out of the mine by the self-propelled vehicle while the mine is in the mine.

An example of carrying out shear from the face of tunnel construction shown in the drawings will be described below.

There is shear 2 on the face of tunnel 1 due to blasting.
The shovel car 3 for loading and unloading the self-propelled vehicle 4, and the loading platforms 5a and 5 of the same-shaped loading platforms 5a to 5e that can be loaded and unloaded onto the self-propelled vehicle 4.
Place b directly behind and parallel to the shovel car 3,
Loading platforms 5c to 5e are arranged in series a little behind them, and the amount of shear 2 mined by one blasting can be loaded onto these loading platforms 5a to 5e.

The loading platforms 5a to 5e have a planar rectangular box shape with an open upper side, and approximately the rear half of the bottom surface is inclined upward toward the rear, and a rectangular leg frame 6 is protruded from the bottom surface. When the frame 6 is grounded, there is a gap of about 20 cm between the bottom corners 5', 5' and the ground.

The self-propelled vehicle 4 has a tractor head 7 and a plane U.
It is connected to a low-floor type chassis 8 in the shape of a letter, and an inner frame 9 serving as a loading/unloading device for the loading platforms 5a to 5e is horizontally suspended inside the chassis 8.

The inner frame 9 is approximately U-shaped in plan, and has an L cross section.
Both long side portions 9a, 9b of the shape face each other in parallel at intervals corresponding to the widths of the bottoms of the loading platforms 5a to 5e, and hydraulic cylinders 10, 11 are provided at the front and rear portions of these long side portions 9a, 9b. This makes it possible to move up and down in a horizontal position, and also to perform damping operations by rotating the rear end as a fulcrum.

The hydraulic cylinder 10 (the one on the long side 9b side is not shown) is of a multi-stage type, and the lower end of the cylinder 10a is rotatably supported on the front side of the chassis 8 by a shaft 12, and the tip of the piston rod 10b is rotatably supported on the front side of the chassis 8. Long side part 9
It is rotatably supported on the front side of a by a shaft 13.

Further, the hydraulic cylinder 11 (the one on the long side portion 9b side is not shown) has an upper end of the cylinder 11a rotatably supported on the rear end portion of the chassis 8 by a shaft 14, and the tip of the piston rod 11b is extended. The link 16 is rotatably supported on a support shaft 15 horizontally attached to the rear end portion of the side portion 9a, and the other end of the link 16, which has one end rotatably supported on the support shaft 15, is attached to the chassis 8 with a shaft 17.
It is rotatably supported on the shaft.

Thus, by simultaneously telescoping the hydraulic cylinders 10 and 11, the inner frame 9 can be moved up and down while being held in a horizontal state (Figs. 5 and 6), and by telescoping only the hydraulic cylinder 10. , the inner frame 9 is the shaft 15
It is designed to rotate up and down using the fulcrum as a fulcrum to perform what is called a damping operation.

Moreover, both long side parts 9a, 9 of the inner frame 9
A locking body (not shown) that can move horizontally forward and backward using a pneumatic or hydraulic cylinder is provided on the front side of the loading platform 5a to 5e, and the locking body is fitted on both sides of the front of the loading platform 5a to 5e. Matching receiving hole 1
8 and 18 are provided.

In order to carry out the shear 2, it is sequentially loaded onto loading platforms 5a and 5b by the shovel car 3, and the inner frame 9 is moved to the hydraulic cylinders 10 and 1.
1, the self-propelled vehicle 4 is lowered to a position close to the ground, and the self-propelled vehicle 4 is moved backward, and both long sides 9a, 9b of the inner frame 9 are placed on the loading platform 5a loaded with the shear 2.
Fit along the corners 5', 5' on both sides of the bottom.

Next, a locking body is fitted into the receiving hole 18 of the loading platform 5a to lock it, and the inner frame 9 is connected to the hydraulic cylinder 1.
Raise it horizontally (20 to 30 cm) at 0,11 and place it on the loading platform 5.
A is lifted from the face and loaded onto the self-propelled vehicle 4, and the self-propelled vehicle 4 is driven to a temporary storage site (not shown) set up in a location that will not interfere with blasting and mining work at the face within the tunnel 1. and transport it,
Therefore, the inner frame 9 is connected to the hydraulic cylinder 10,
11 and unload the loading platform 5a with the shear 2 loaded onto the temporary storage area, release the lock of the locking body,
The self-propelled vehicle 4 is moved forward to remove the inner frame 9 from the loading platform 5a, and the loading platform 5a is temporarily placed in a temporary storage area.

While the loading platform 5a is being temporarily placed as described above, the shear 2 is being loaded onto the loading platform 5b by the shovel car 3 as described above. Further, the self-propelled vehicle 4 with the loading platform 5a temporarily placed thereon changes direction in a turn space (not shown) provided in the tunnel 1, retreats to the face, and loads the loading platform 5c in the same manner as in the case of the loading platform 5a. The loading platform 5a immediately behind the shovel car 3
After being unloaded to a hot place, the loading platform 5b loaded with the shear 2 is loaded onto the self-propelled vehicle 4, and transferred to a temporary storage area for temporary storage. Furthermore, the shear 2 is loaded onto the loading platforms 5c to 5e in the same manner as above, and the loading platforms 5c and 5d are transferred to a temporary storage area and temporarily stored, and the last loading platform 5
e is carried out of the mine while being mounted on the self-propelled vehicle 4 without being temporarily stored.

In this way, the next blast mining is carried out immediately after the shear 2 from the face is placed on the loading platforms 5a to 5e and transported, and during that time, the loading platform 5 temporarily stored in the temporary storage area is
A to 5d are sequentially loaded onto the self-propelled vehicle 4 and transported outside the mine.

The loading platform 5a became empty after the above blast mining was completed.
-5e are sequentially loaded onto the self-propelled vehicle 4, transferred to the face, and arranged in a row as before, and the newly mined scraps are placed on these loading platforms 5a-5e, and mined in the same manner as in the previous case. Carry it outside.

By repeating each of the above operations in this manner, the shear is removed.

In addition, in the above example, a case was explained in which one self-propelled vehicle and five loading platforms were used to transport the shear, but the invention is not limited to this, and the condition of the face, the size of the tunnel, and the number of times of blasting per time are not limited to this. The number of such machines may be determined as appropriate in consideration of the amount of mining, the time required for temporary storage work, etc. In addition to scraps, blasted materials such as ore or coal can also be transported in the same manner.

As is clear from the above description, according to the present invention, blast mined materials such as scraps are sequentially loaded onto a plurality of loading platforms arranged at a face, and the loaded loading platforms are used by self-propelled vehicles to prevent interference with blast mining work. The materials will be sequentially transferred to the rear of the face where the material will not be used and temporarily stored there, and the next blasting operation will be carried out immediately after the temporary storage is completed. During this time, each temporarily stored platform will be loaded onto a self-propelled vehicle and transported out of the mine in sequence. This eliminates the waste of waiting time for self-propelled vehicles to load shelving, etc., improves vehicle handling efficiency, and minimizes the number of self-propelled vehicles required per unit amount of transport. It is extremely easy to operate, as it can reduce personnel costs for operators and fuel costs, prevent environmental pollution inside the mine due to vehicle exhaust gas, and eliminate wasteful waiting time for blasting and mining operations.

[Brief explanation of the drawing]

The drawings show an example of carrying out shear from the tunnel face, and Figures 1 and 2 are a plan view and a side view showing the state in which five loading platforms are used to carry out the shear from the face.
Figures 3 and 4 are side and rear views of the loading platform, Figures 5 and 6
The figures are a side view and a rear view of the main parts of the chassis. 2... Shear, 5a to 5e... Loading platform, 9... Inner frame serving as a loading/unloading device, 4... Self-propelled vehicle.

Claims (1)

[Claims] 1. A plurality of loading platforms are placed on a face, and while blasted mines such as scraps are sequentially loaded onto the loading platforms, a self-propelled vehicle equipped with a loading/unloading device for loading and unloading the loading platforms moves the mining loading platform to the face. While sequentially transporting and temporarily storing the materials to the rear, each of the temporarily stored cargo platforms is sequentially transported out of the mine by the self-propelled vehicle while the next blasting and mining work is being carried out after the completion of the temporary storage work. A method for transporting blasted materials such as shear, characterized by: