JPS5996025A - Power transmission cable carrier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Conventionally, as a method of laying power transmission lines in urban areas, conduit type, tunnel type, etc. have been adopted for laying underground power lines due to the availability of land and environmental considerations in accordance with road maintenance plans. ing. Furthermore, when installing underground power lines in urban areas, when transporting them using conventional cable carriers, the diameter of the high-voltage cable is 275,000 volts, and the diameter of the wire is 13 cm, and the building limit is stipulated to be 4.5 m. The diameter of the winding drum is limited to 3 to 3.5 m, and the length that can be laid with one cable is about 800 rn. For this reason, the longest interval between shafts is also approximately 800 m.

However, in the future, the demand for electricity will tend to increase as urbanization and overcrowding become more pronounced, and a large amount of power will be required to be supplied, and it is expected that 500 to 1 million ports will be used for high-voltage cables. As a result, the diameter of the power line has become 16 marks, and the conventional underground power line winding drum can only wind up about half the length of the cable, which is inefficient. Acquiring land for construction has become increasingly difficult, and the problem is how to lay cables without making the shaft spacing shorter than before.

The present invention provides a cable carrier that solves the above-mentioned problems. Next, embodiments of the present invention will be described based on the drawings. Figure 1: A fixed drum 2 with a diameter of 3 to 3.5 m was placed on the loading platform 1 of the transport vehicle body, and after winding the cable 3, the cable 3 was suspended into the shaft 4 at the site. The situation is shown in Fig. 2, in which drums 6 of the same diameter are mounted front and rear on the loading platform 5 of the body of a transport vehicle.
Both ends of the central shaft, on which both drums 6 are rotatably fitted, are integrally clamped and connected via a connecting member 7, and both drums 6 are moved up and down by a rotary shaft attached to the center of the connecting member 7. A jack 8 for moving is mounted on the loading platform 5, and a motor 9 for rotating both drums 6 integrally about the rotation axis of the connecting member 7 via a drive belt 11 is separately placed at a predetermined position. First, the jack 8 is operated to raise both drums 6 via the connecting member 7, and then the cable 10 is wound into an elliptical shape by the two drums by driving the motor 9 via the drive belt 11. Next, the jack 8 is operated again to return it to its original position. In this state, the transport vehicle can be moved to the predetermined shaft 4 because the height is within the limit for transport.

Next, the jack 8 is operated again to raise both drums 6 together via the connecting member 7, and the cable 1 is rotated by driving the motor 9 to rotate the rotary shaft provided at the center of the connecting member 7.
The end of 0 is inserted into the shaft 4 and a lifting operation is performed. After the operation is completed, both drums 6 may be lowered to their original positions. Further, FIG. 3 shows another embodiment of the present invention.

In the figure, the front and rear drums 6 are placed on the loading platform 5 of the vehicle body.
The cable 10 is mounted in the vertical direction, and the winding and hanging operations of the cable 10 are performed in the same manner as described above. At this time, it is not necessary to raise and lower both drums 6 using a jack, and it is sufficient to horizontally rotate them at that position.

As mentioned above, according to the present invention, cables that are twice the length of conventional cables can be loaded onto one transporter, so 27
．． When using a 50,000 volt cable, it is possible to extend the shaft at twice the conventional distance, and when using a 500,000 volt cable, cable joints are required at the conventional shaft spacing. This makes it possible to install it without having to install it.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a conventional cable transport vehicle. FIG. 2 is a schematic side view of a cable transport vehicle according to the present invention. FIG. 3 is a schematic side view of another embodiment in which a drum is vertically mounted on a loading platform. 1.5: Transport vehicle loading platform 2.6 = drum 3.10: Cable 4: Shaft 7: Connecting member 8: Jacket 9: Motor 11: Drive belt

Claims (1)

[Claims] (1) Drums of the same diameter are arranged and mounted on the loading platform of the body of a transport vehicle, and both ends of a rotating shaft provided at the center of the front and rear drums are integrally clamped and connected by a connecting member, and the A cable transport vehicle in which a jack for vertically moving a rotating shaft fixed to the center of a connecting member is directly connected, and a motor for rotating the front and rear drums together around the rotating shaft of the connecting member is separately placed on a loading platform. (2. A cable transport vehicle in which the front and rear drums according to claim 1 are vertically mounted on a loading platform and rotated horizontally.