JP4279418B2 - Cable feeding device for feeding mobile structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power feeding cable feeding device for a moving structure such as a tunnel excavator.
[0002]
[Prior art]
For example, as a method of supplying electric power from the outside to a moving structure such as a tunnel excavator, a method using a cable drum with a slip ring mechanism is conceivable. In this method, a power feeding cable that is sequentially fed in accordance with the movement of the structure is wound around a drum having a slip ring as a power feeding mechanism for the rotating body and placed on the moving structure, or at a feeding start point. It is to be installed.
[0003]
[Problems to be solved by the invention]
In the conventional general slip ring mechanism, the cable and the slip ring are integrated and cannot be easily separated. That is, the cable is subjected to terminal processing and then connected to the slip ring. Therefore, in the case of a structure that moves for a long distance, when the cable for one drum is used up, it is necessary to perform terminal processing on the new cable and connect it to the slip ring. Furthermore, there is a problem that the work of rewinding the cable around the drum with the slip ring becomes necessary after the connection work, which complicates the work.
[0004]
Therefore, an object of the present invention is to provide a moving structure power feeding cable feeding device that can easily and quickly add a power feeding cable.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, a cable feeding device for feeding a moving structure according to the present invention includes a plurality of drum units and a base frame portion that holds the drum units one by one so as to be detachable and rotatable. A cable mounted on a movable structure, the movable structure is a tunnel excavator, and the drum unit is connected to a cable for supplying electricity to the tunnel excavator and to an end of the cable so as to be separable preparative has a drum in advance winding set, and Luz rippling mechanism built into the drum, and further, the drum was wound around the cable winding unit and the extra length cable that wound around the cable has an annular partition plate which partitions forming the extra length cable winding part, moreover, the cable of the drum unit, which has been formed by being twisted cable single wire is present 3, Is attached connectors on both ends of the cable single line in advance, and the excess length cable, be one extra length cable single wire is three twisted by forming one end of each of the extra length cable single wire slip ring mechanism A connector is attached to the other end of each of the excess cable single wires so that it can be connected to and separated from the connector at one end of the cable single wire. that they have been disposed to.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Below, with reference to the drawings showing an embodiment of the present invention will now be described with.
[0007]
FIG. 1 shows an embodiment of a cable feeding device for feeding a moving structure according to the present invention. In the embodiment of the present invention, as shown in FIG. 6, the mobile structure power supply cable feeding device 1 of this is entirely mounted on the tunnel boring machine F, from power device E which is installed in the tunnel T external Electric power is configured to be supplied to a tunnel excavator F that moves forward while excavating in the ground.
[0008]
Specifically, as shown in FIGS. 1 and 2, the cable feeding device 1 includes a drum unit 4 and a base frame portion 5 that holds the drum unit 4 so as to be detachable and rotatable. The drum unit 4 is built in the drum 6 in which the cable 2 for supplying electricity to the tunnel excavator F and the extra length cable 3 connected to one end of the cable 2 so as to be separable are preliminarily wound. And a slip ring mechanism 7 that is electrically connected to one end of the extra cable 3 wound around the drum 6.
[0009]
As shown in FIGS. 1, 2, and 4, the drum 6 includes a body 10 having an inner / outer double structure composed of an inner cylinder 8 and an outer cylinder 9 provided concentrically, and both ends of the body 10. A pair of disc-shaped outer casing portions 11 and 11 provided, and an annular partition plate 12 provided as an outer fitting shape to the outer cylindrical body 9 and close to one outer casing portion 11; A radial slit 13 is provided in a part of 12. The edge of the slit 13 is formed obliquely (see FIG. 7).
[0010]
In the drum 6 configured in this way, a cable winding portion 14 having a large space and an extra length cable winding portion 15 having a small space are formed by the partition plate 12, and the cable 2 is connected to the cable winding portion 14 at one end 16. Winding is performed over a plurality of stages (for example, a length of several hundred meters) from the side, and the surplus cable 3 is wound around the surplus length cable winding section 15 (for example, a length of several tens of meters). This will be described in detail later.
[0011]
As shown in FIGS. 1 and 5, the slip ring mechanism 7 includes a cylindrical shaft 22 rotatably provided on the axis P of the drum 6 via a bearing 21, and a slip ring attached to the shaft 22. 23, and a plurality of current collecting members 24 slidably contacting the slip ring 23 attached to a plurality of attachment rods attached in a cantilever shape from the inner surface of the other outer flange portion 11 to the slip ring 23 side, Prepare.
[0012]
By the way, as shown in FIGS. 3, 4 and 7, the cable 2 is formed by twisting, for example, three cable single wires 2 a composed of a conductor 17 and an insulator 18. Connectors 19 are respectively attached to both ends (one end 16 and the other end 20), that is, both ends of each cable single wire 2a. Further, as shown in FIG. 5, the extra cable 3 is also formed by twisting three extra cable single wires 3a made of a conductor and an insulator.
[0013]
In order to wind the power supply cable 2 and the extra cable 3 around the drum 6, first, as shown in FIGS. 1 and 5, one end 25 of the extra cable 3 is connected to the outer cylinder of the body 10. Is inserted into the gap between the inner cylinder 8 and the outer cylinder 9 through the insertion hole 27 formed in the cable 9, and one end of each extra-length cable single wire 3a is passed through the inner cylinder 8 so that each of the slip ring mechanisms 7 Each of the current collecting members 24 attached to the mounting rod is electrically connected to each other. Then, the extra length cable 3 is wound around the extra length cable winding portion 15 of the drum 6 by a predetermined length, and as shown in FIGS. 4 and 7, each extra length cable single wire at the other end 26 which is the end of the winding is provided. 3a... Are detachably fixed to the partition plate 12 by the belt 28. It should be noted that connectors 19 are attached in advance to the ends of the extra cable single wires 3a.
[0014]
Thereafter, one end 16 (winding end portion) of the cable 2 is passed through the slit 13 of the partition plate 12 and pulled out to the extra length cable winding portion 15 side by a predetermined length, and the connector 19 of each cable single wire 2a. The long cable is connected to the connector 19 of the single wire 3a, and is detachably fixed to the partition plate 12 by the belt 28. Then, the cable 2 is wound around the cable winding portion 14 of the drum 6 by a predetermined length. Thereby, the drum unit 4 in which the cable 2 and the extra length cable 3 are wound around the drum 6 in advance is formed.
[0015]
1, 2, 5, and 7, the drum unit 4 has, for example, three connection terminals 35 on the end face of the slip ring 23 and also has three connectors 37. Each of the connection terminals 35 is electrically connected to each of the connectors 37 of the connection terminal portion 34 via a connection cable 36 that includes the terminal portion 34 and is formed by twisting three connection cable single wires 36a. . The connection cable 36 passes through the inside of the shaft 22 of the drum unit 4 from the connection terminals 35... And is electrically connected to the connection terminal portion 34.
[0016]
Next, as shown in FIGS. 1 and 2, the base frame portion 5 is connected to a base portion 29 and four rollers 30... A motor 32 that rotates the two rollers 30 and 30 connected by the flange 31 at low speed and a base portion that detachably holds the end of the shaft 22 of the drum unit 4 and prevents the drum 6 from popping out. 29, and a column portion 33 erected on 29. Reference numeral 40 denotes a cover member for fixing the shaft 22 of the drum unit 4. The connecting terminal portion 34 of the drum unit 4 is detachably attached to the base portion 29.
[0017]
Next, an example about the operation | movement of the cable feeding apparatus 1 of this invention, the replacement procedure of the drum unit 4, etc. is demonstrated. As shown in FIGS. 1, 2, and 6, first, in the cable feeding device 1 previously mounted on the tunnel excavator F, the winding end portion of the cable 2 wound around the drum 6 is drawn out to generate power. Electrical connection to device E. At this time, for example, the vertical detector 38 for intermittent operation is provided on the ceiling frame of the tunnel excavator F, and the cable 2 is passed between the rollers 39 of the vertical detector 38. That is, the motor 32 of the cable feeding device 1 is automatically stopped when the vertical detector 38 swings downward. As shown in FIG. 7, the connection terminal portion 34 of the drum unit 4 is electrically connected in advance to the drive portion 41 of the tunnel excavator F via an electric cable 42.
[0018]
Thereafter, by driving the motor 32, the rollers 30 and 30 are rotated and the drum 6 is rotated slowly, and the excavator F travels while supplying electricity from the power generator E to the tunnel excavator F. The power supply cable 2 is slowly fed out. At this time, the shaft 22 and the slip ring 23 are stationary, and electricity from the power generator E is integrated with each cable single wire 2a... Of the cable 2 to each extra cable single wire 3a. Each of the current collecting members 24 rotating in a rotating manner, a stationary slip ring 23 in sliding contact with each of the current collecting members 24, a connection cable 36, a connection terminal portion 34, and a drive portion of the tunnel excavator F via the electric cable 42 Supplied to 41.
[0019]
When the remaining power supply cable 2 wound around the drum 6 is reduced, the belt 28 which fixes the cable 2 and the extra-length cable 3 to the partition plate 12 is removed, and thereby the winding start end of the cable 2 is removed. The portion (one end 16) can be fed out from the drum 6, and subsequently, the extra length cable 3 can be fed out from the drum 6. Thereafter, when all the cables 2 are fed out, the forward tunnel excavator F is stopped. Then, since the drum 6 is still rotating, the fed cable 2 and the extra cable 3 to be fed loosen, and the up / down detector 38 (described above) swings downward by the loose load, thereby The motor 32 and the drum 6 are stopped.
[0020]
Thereafter, the power supply from the power generator E is stopped, and the connectors 19 that electrically connect the extended cable 2 and the extra-length cable 3 are disconnected. Then, if the extra cable 3 is extended, it is rewound, the connection terminal portion 34 and the electric cable 42 are disconnected, the connection terminal portion 34 is removed from the base portion 29, and then the drum 6 is taken out from the base frame portion 5. . Then, as shown in FIG. 7, the next new drum unit 4 is set on the base frame portion 5, the electric cable 42 is connected to the connecting terminal portion 34, and the connector 19 at the end of the cable 2 that has been fed out earlier is ... Are connected to the connector 19 at the end of the new cable 2 (the end of winding), and the replacement work of the drum unit 4 and the addition work of the cable 2 are completed. Then, if electricity is again supplied from the power generator E to the tunnel excavator F, the excavation work is continued.
[0021]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0022]
(According to claim 1) Electricity can be supplied to the tunnel excavator F while rotating the drum 6 and feeding the power supply cable 2. Further, by replacing the drum unit 4, the cable 2 can be easily and quickly added. Can be done . Therefore, it is preferable to tunneling machine which performs long distance tunnel construction. Further, since the extra length cable 3 is wound around the drum 6, the entire apparatus can be made compact, and can be sufficiently installed in a tunnel excavator having a relatively small installation space.
[0023]
In addition, when the power supply cable 2 is added, the cable 2 end previously fed out and the cable 2 end of the replaced new drum unit 4 can be easily and quickly electrically connected , and tunnel excavation is possible . In the construction, the addition work can be easily performed.
[0024]
Also, by mounting a cable feeding device 1 to the tunnel boring machine F side, because going out Repetitive cable 2 from the excavator F side move forward, the cable 2 may like getting hurt is dragged over such ground Absent.
[Brief description of the drawings]
FIG. 1 is a partially sectional front view showing an embodiment of the present invention.
FIG. 2 is a side view.
FIG. 3 is a perspective view showing an end portion of a cable.
4 is a cross-sectional view taken along line AA in FIG.
5 is a cross-sectional view taken along line BB in FIG.
FIG. 6 is a schematic diagram illustrating a tunnel excavator.
FIG. 7 is an explanatory diagram showing cable extension work.
[Explanation of symbols]
2 Cable
2a cable single wire 3 extra length cable
3a extra length cable single wire 4 drum unit 5 base frame 6 drum 7 slip ring mechanism
12 Partition plate
14 Cable winding part
15 Extra length cable winding part
16 one end
19 Connector
25 One end F Tunnel excavator

Claims (1)

A plurality of drum units (4) and a base frame portion (5) for holding the drum units (4) one by one so as to be detachable and rotatable are mounted on the movable structure, and the movable structure is tunneled. Excavator (F),
The drum unit (4) includes a cable (2) for supplying electricity to the tunnel excavator (F) and an extra length cable (3) connected to one end (16) of the cable (2) so as to be separable. a pre-winding setting drum (6), and built-in answering rippling mechanism (7) to said drum (6) has a further, the drum (6) was wound around the cable (2) An annular partition plate (12) for partitioning and forming a cable winding portion (14) and a surplus length cable winding portion (15) wound with the surplus length cable (3);
Moreover, the cable (2) of the drum unit (4) is formed by twisting three cable single wires (2a), and connectors (19) are provided in advance at both ends of each cable single wire (2a). The extra length cable (3) is formed by twisting three extra length cable single wires (3a), and one end of each extra length cable single wire (3a) is a slip ring mechanism. (7) is electrically connected to the other end of each of the extra cable lengths (3a), and a connector (19) is attached to the connector (19) at one end of the cable length of the cable (2a). Both the connectable and separable connectors (19) and (19) are arranged in the extra length cable winding section (15), and the moving structure feeding cable feeding device is characterized in that:

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