JP2000328900A - Device for supplying power to machine for tunneling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric power supply device for a machine for tunneling capable of easily extending a tough-rubber sheath cable or housing it in accordance with the movement of a machine for tunneling when connecting the machine and a relay transformer through the rubber sheath cable to supplying power. SOLUTION: This electric power supply device is constituted of at least one power relay transformer 12 disposed in an excavation tunnel and a crawler dump truck 13 in which a current-collecting reel 13b is mounted on a staging to freely wind or wind off the tough-rubber sheath cable to the current-collecting reel 13b. The power relay transformer 12 and a transferable machine for tunneling are electrically connected through the rubber sheath cable 15 wound on the current collecting reel 13b installed in the crawler dump truck 13 to supply electric power to the machine for tunneling and transfer the crawler dump truck 13 in accordance with the movement of the machine or let off the tough- rubber sheath cable 15 out of the current collecting reel 13b or wind it thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a tunnel machine, and more particularly to a power supply for operating a hydraulic excavator such as a hydraulic excavator for tunnel excavator or a tunnel lining. The wiring structure of the captire.

[0002]

2. Description of the Related Art Conventionally, a hydraulic jumbo for tunnel excavation has a captyre (power cable) of about 100 m.
It has. Power to the hydraulic jumbo is supplied from a fixed transformer located outside the tunnel mine via one or more relay transformers located inside the tunnel mine.

That is, a relay transformer connected by a power cable from a fixed transformer installed outside a tunnel mine includes:
The captire wound on the current collecting reel provided in the hydraulic jumbo for tunnel excavation was pulled out and connected, whereby the hydraulic jumbo was supplied with electric power. Therefore, when the hydraulic jumbo is moved forward and backward, the appropriate length of the cap tire is adjusted by feeding or winding the cap tire from the current collecting reel mounted on the hydraulic jumbo.

[0004]

However, the cap tire wound on the current collecting reel mounted on the hydraulic jumbo is about 100 m as described above, and therefore the hydraulic jumbo is moved further by the advance of the tunnel excavation or the like. When moving forward, an extension power cable or extension tyre must be connected between the relay transformer.

[0005] Usually, as a cap tire for supplying power to the hydraulic jumbo, a thickness of about 10 for a low voltage (440 V) is used.
Since a cable of 0 sq is used and its weight is considerable, it is difficult to prepare it for extension extension or to actually add or remove it by human power. For example, heavy machinery such as a hydraulic excavator is used. Therefore, there is a problem that a great deal of labor and labor are required.

Further, if a heavy machine is used for adding or removing the extension captire, the extension captire may be damaged. Also, when blasting the tunnel face and crushing it, retract the hydraulic jumbo to a safe position,
Extension captires are often left undisturbed in tunnel pits without disconnecting.

This is because the hydraulic jumbo operates immediately after the face is crushed by blasting, and the work efficiency is reduced if the extension captire is removed every time the hydraulic jumbo is retracted. For this reason, there is also a risk that rocks and the like crushed by the blasting are scattered and collide with the extended captire and damage the coating. If the cap tire is damaged as described above, the cap tire may come into contact with other wiring or equipment to cause a short circuit, which is not preferable.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem. When a tunnel machine and a relay transformer are connected by a captire to supply electric power, the tunnel machine is connected to the tunnel transformer. An object of the present invention is to provide a power supply device for a tunnel machine that can easily extend or store the cap tier as it moves, and can also protect the cap tier.

[0009]

SUMMARY OF THE INVENTION The present invention is an apparatus for supplying power to a machine for a tunnel, and is configured as follows to solve the above-mentioned technical problems. That is, the power supply device for a tunnel machine of the present invention includes at least one power relay transformer disposed in a pit of a drilling tunnel and a current collecting reel mounted on a pedestal, and a captire is fed out to the current collecting reel. A power relay transformer and a movable tunnel machine are electrically connected via a captire wound around the current collecting reel of the self-propelled vehicle. And supplying the electric power to move the self-propelled vehicle with the movement of the tunnel machine or to feed out or wind up the cap tire from the current collecting reel.

<Specific Configuration in the Present Invention> The power supply device for a tunnel machine according to the present invention includes the above-mentioned essential components. Even when the components are specifically as follows: To establish. The specific component is that the tunnel machine is a hydraulic jumbo for tunnel excavation or a spray robot for tunnel lining.

In the power supply apparatus for a tunnel machine according to the present invention, the captire has a thickness of about 100 sq. In addition, a self-propelled vehicle having the current collecting reel mounted on the gantry has 440 pumps or lighting.
It is characterized by having a V / 220V transformer.

According to the power supply apparatus for a tunnel machine according to the present invention, a tunnel machine such as a hydraulic jumbo for excavating a face or a spraying robot for lining an excavated tunnel is disposed in a tunnel shaft. Power is supplied by the captive tire from the power relay transformer.

A cap tire for electrically connecting the tunnel machine and the power relay transformer is wound on a current collecting reel mounted on a mount of a self-propelled vehicle, and is used for supplying power wound around the current collecting reel. The power relay transformer and the movable tunnel machine are electrically connected to each other via the cap tier.

Thus, the self-propelled vehicle moves with the movement of the tunnel machine, such as when the tunnel machine moves forward with the progress of the work, or when the tunnel machine retreats in order to evacuate and shatter the face. Is moved or the cap tire is fed or wound up from the current collecting reel.

[0015] As a result, there is no need to add or remove the extension captire every time the tunnel machine moves forward or backward a predetermined distance or more, thereby reducing labor and improving work efficiency. The cap tire can be prevented from being damaged.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a power supply apparatus for a tunnel machine according to the present invention. FIG. 1 shows a power supply device (hereinafter, simply referred to as “power supply device”) 10 for a tunnel machine according to one embodiment of the present invention.

The power supply device 10 of this embodiment is an example in which power is supplied to a hydraulic jumbo 11 for excavating a face K of a tunnel T. In the case of this embodiment, the power supply device 10 includes a power relay transformer 12 arranged in a pit of a drilling tunnel, and the power relay transformer 1
Self-propelled vehicle 13 disposed between the hydraulic vehicle 2 and the hydraulic jumbo 11
It is composed of

The power relay transformer 12 disposed in the tunnel pit includes a dry transformer 12b, a blower 12c, and other devices (eg, evacuation facilities, digesters, lighting devices, etc.) on a carrier of a self-propelled vehicle 12a such as a truck. And is installed at a predetermined position in a tunnel pit.

The power relay transformer 12 is a self-propelled vehicle, but does not move frequently, but moves to a predetermined position every time the tunnel excavation progresses by about 100 to 150 m. The power relay transformer 12 includes a fixed transformer (not shown) installed outside the tunnel pit and a power cable 14.
And a high-voltage AC load switch (LB) (not shown) between the fixed transformer and the power relay transformer 12.
S), a joint box, etc. are interposed.

The self-propelled vehicle 13 uses an electric motor to
The trolley is configured to be able to drive by driving the 3a, and the trolley that runs on the crawler track in this way is called a crawler dump. The current collecting reel 1 is mounted on the base of the crawler dump 13.
3b is mounted. A cap tier 15 is wound around the current collecting reel 13b so as to be able to be extended and wound up freely. The cap tier 15 wound around the current collecting reel 13b is connected to the power relay transformer 12 described above.

Generally, the current collecting reel 11a is mounted on the hydraulic jumbo 11, as described above.
A cap tire 16 having a length of about 100 m is wound around 1a. The cap tire 16 wound around the current collecting reel 11a is a crawler dump 1
3 is electrically connected to the cap tire 15 wound around the current collecting reel 13b.

According to the power supply apparatus 10 for a tunnel machine according to the present embodiment configured as described above, the range in which the hydraulic jumbo 11 moves forward and backward for excavation of the face is 100.
m, the captive tire 16 wound around the current collecting reel 11a of the hydraulic jumbo 11 itself is drawn out or rolled up so that the captire 1 between the hydraulic jumbo 11 and the crawler dump 13 is moved.
6 is always properly adjusted.

However, for example, as in the case where the face is blasted by blasting, the hydraulic jumbo 11
When moving over a distance of 00 m or more, the hydraulic jumbo 11 moves toward the crawler dump 13 while winding the captire 16 extending from the current collecting reel 11 a provided on the hydraulic jumbo 11, and then the crawler dump 1
3 moves toward the power relay transformer 12 while winding the captire 16 extending from the current collecting reel 13b. At that time, the hydraulic jumbo 11 naturally moves in the same direction.

As a result, the hydraulic jumbo 1
1 does not need to add or remove the extension captyre when moving out of the predetermined distance, eliminates the labor and effort of adding or removing the extension captyre, and eliminates the captyre itself. Protection can be achieved.

The crawler dump 13 on which the current collecting reel 13b is mounted is further provided with a 440 V / 22
It is preferable to provide a 0V transformer (not shown). This transformer can be used, for example, when supplying power to a pump or a lighting device.

In the power supply apparatus for a tunnel machine according to the above-described embodiment, the power is supplied to the hydraulic jumbo as the tunnel machine. However, the tunnel machine to which the present invention can be applied is preferable. As a device, there is a spraying robot for tunnel lining. Of course, it goes without saying that the power supply device of the present invention can be used for various other movable tunnel machines.

[0027]

As described above, according to the power supply apparatus for a tunnel machine of the present invention, the power is collected between the tunnel machine such as a hydraulic jumbo or a spray robot and the power relay transformer. Since a self-propelled vehicle equipped with a power reel was arranged, and power was received from the power relay transformer via the captire wound on the current collecting reel and the captire of the tunnel machine,
It is not necessary to add or remove the extension captire due to the movement of the tunnel machine, and it is also possible to protect the captire itself.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view of a machine / vehicle arrangement in the vicinity of a tunnel face to schematically show a power supply device for a tunnel machine according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Power supply apparatus for tunnel machine 11 Hydraulic jumbo (tunnel machine) 11a Current collecting reel 12 Power relay transformer 12a Self-propelled vehicle 12b Dry transformer 12c Blower 13 Crawler dump (self-propelled vehicle) 13a Tracked track 13b Current collecting reel 14 Power cable 15 Captire 16 Captire

Claims (4)

[Claims] 1. A self-propelled vehicle in which at least one power relay transformer arranged in a pit of a drilling tunnel and a current collecting reel mounted on a base, and a captire is wound around the current collecting reel so as to be able to be fed and wound up. Via the captire wound on the current collecting reel of the self-propelled vehicle, electrically connecting the power relay transformer and a movable tunnel machine to supply power, A power supply device for a tunnel machine, wherein the self-propelled vehicle is moved with the movement of the tunnel machine, or the cap tire is fed or wound up from the current collecting reel. 2. The power supply device for a tunnel machine according to claim 1, wherein the tunnel machine is a hydraulic jumbo for tunnel excavation or a spray robot for tunnel lining. 3. The power supply device for a tunnel machine according to claim 1, wherein the cap tire has a thickness of about 100 sq. 4. The tunnel according to claim 1, wherein the self-propelled vehicle having the current collecting reel mounted on the mount further includes a pump or a transformer for lighting. For supplying power to industrial machinery.