JP2879327B2 - Cable transportation and laying method in the cave - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transporting and laying an ultra-high voltage cable mainly over a long distance in a tunnel.

[0002]

2. Description of the Related Art An ultra-high voltage cable laying method has been advantageous to lay a long cable (from a conventional 500 m span to 1500 to 2000 m span) in terms of total construction time including laying and connection and cost reduction. The greatest advantage lies in the reduction in connection costs and the shortening of the construction period due to the reduction in the number of connection points. On the other hand, when the cable length per span becomes 1500-2000m class, cable transfer,
Laying is difficult.

[0003] Therefore, in the conventional cable conveying method in a cave, a cable is laid by a holing machine and a drawing roller installed at regular intervals on the floor of the cave. In addition, a method of laying cables by installing motor rollers in a tunnel. In addition, a space for laying is secured in the cave, and I
There is a construction method in which a beam rail is installed and a cable is suspended and transported by an auto train construction method.

[0004]

However, when the above-mentioned method using the holing machine and the extension roller and the method using the motor roller are applied to transportation in a long-distance cave, the number of machines to be installed is increased due to the development of materials and equipment over the entire route. And the cost for equipment preparation and transportation will increase. Further, in these construction methods, since the wire drawing speed is limited to 5 to 8 m / min, there is a limitation in shortening the construction period when working in a long-distance cave. In addition, these construction methods have the drawback that they occupy the passage of the canal and cannot compete with other works. In addition, the above-mentioned auto train method requires the permanent installation of an I-beam, which requires 50 or more transport vehicles during cable transport, and requires large-scale equipment in terms of measures for power supply and signals to be supplied to the vehicles. Become. Further, when suspending the cable in the auto train, an operator is required to assist, so that the transport speed is limited to about 5 m / min. Also, since heavy objects travel on the ceiling, it is necessary to consider safety aspects. Further, when there is a difference in elevation of a shaft or the like along the extension route, there is a disadvantage that the cable needs to be changed every time.

[0005] The present invention has been made in view of the above-mentioned problems, and does not take up space in a cave and can compete with other works. Even if there is a height difference along the extension route, a cable is required. It is an object of the present invention to provide a cable transporting and laying method that is convenient for changing the order of the cables and that can easily supply power to the driving device.

[0006]

According to the first aspect of the present invention, in a method of transporting and laying a cable in a cave, a rail is provided along the cave in the cave, and a driving device is provided at regular intervals of the rail. Is provided, a number of trucks are placed on this rail, these trucks are connected by connecting rods, cables extending to these trucks are placed, and a holing machine is placed on some of these trucks, The cable can be sent out or grasped freely, and the connecting rod is pushed out in the front-rear direction by the driving device to move the carriage.

According to a second aspect of the present invention, in a method of transporting and laying a cable in a cave, a rail is provided along the cave in the cave, and a driving device including a magnetic belt is provided at regular intervals of the rail. A large number of trucks are placed on this rail, these trucks are connected by connecting rods, cables extending to these trucks are placed, and a holing machine is placed on some of these trucks, and To be freely sent out or gripped, and the connecting rod is attracted by the magnetic force of the driving device and pushed out in the front-rear direction to move the carriage, whereby a cable is transported in a sinus and a laying method is adopted.

According to a third aspect of the present invention, in a method of transporting and laying a cable in a cave, a rail is provided along the cave in the cave, and a driving device comprising a pair of pulleys at regular intervals of the rail. Is provided, a number of trucks are placed on this rail, these trucks are connected by connecting rods, cables extending to these trucks are placed, and a holing machine is placed on some of these trucks, The cable is sent or held freely, and the connecting rod is gripped by a pair of pulleys of the driving device and pushed out in the front-rear direction to move the carriage, so that the cable is transported and laid in a tunnel.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram of the device according to the first embodiment. Two pairs of rails 2 are provided along a sinus 1 in a sinus 1. A magnetic belt 3 consisting of an endless track is provided in parallel between the two rails 2 at a predetermined interval on the rail 2, and each of the magnetic belts 3 is driven to rotate by a driving device 4. . Further, power is supplied to these driving devices 4.

A large number of trucks 5 are mounted on the rails 2, and these trucks 5 are connected to each other by connecting rods 6 each having a key-shaped cross section supported below each truck 5 so as to be freely bendable. The rod 6 is attracted by magnetic force at the position of the magnetic belt 3. Also, a part of these trolleys 5
A holing machine 7 is mounted on the other carriage 5, and a roller 8 is mounted on the other carriage 5. When the cables 9 are placed on these trolleys 5, the above-mentioned holing machine 7 is operated to place the cables 9 on these trolleys 5. However, when the cables 9 are placed across the many trolleys 5, the The cable 9 is gripped by the above-mentioned holing machine 7, and the cable 9 is placed and fixed on a large number of carts 5 in this manner.

Then, when the power of each of the driving devices 4 is turned on,
When the magnetic belts 3 are rotated, the connecting rods 6 adjacent to the respective magnetic belts 3 are pulled by magnetic attraction, move together with the magnetic belts 3, and push the cart 5 in the front-rear direction. The trolley 5 on which the cable 9 is placed in this way is the rail 2
And the cable 9 is transported in the sinus 1.
The cable 9 is transferred by operating the holing machine 7 of the truck 5 at the time of changing the cable between the trucks in the shaft and at the time of placing the cables on the shelves.

FIG. 2 and FIG. 3 show the details of four driving devices including the endless track magnetic belt 3. The magnetic belt 3 is rotatably supported by an appropriate frame 10 with two gears 11, 11a. And a drive shaft of the drive device 4 including a motor 12 and a reduction gear 13 is attached to one gear 11. The magnetic belt 3 has a configuration in which a permanent magnet is provided on the outer periphery of each piece of the chain that meshes with the gears 11 and 11a. The other gear 11a is provided with an adjusting device 14 for adjusting the distance between the other gear 11a and the one gear 11. Then, as shown in FIG.
Is located between the two rails 2 and the carriage 5
Of the connecting rod 6.

FIGS. 4 to 6 show details of the carriage 5 on which the rollers 8 are mounted. The carriage 5 has wheels 16 running on the rails 2 on both front and rear sides of an appropriate frame 15. The rail 2 has two rails that have a key-shaped cross section and are opposed to each other. Further, guide wheels 17 which rotate in contact with the vertical plates of the respective rails of the rail 2 are provided beside the respective wheels 16. The roller 8 is rotatably supported at the center of the frame 15 at a substantially right angle to the rail 2 and two vertical guide rollers 18 are provided at the center of the frame 15 at point-symmetric positions. Provided. Rotating connectors 20 are provided at the front and rear ends of the horizontal plate of the inverted T-shaped support 19 hanging down from the frame 15, and the connecting rods 6, 6 adjacent to the arms of these rotating connectors 20 are provided. Butt ends are fixed respectively. As a result, the connecting rods 6 between the carriages 5 can be bent up, down, left and right with respect to each other.

FIGS. 7 to 9 show details of the carriage 5 on which the above-described holing machine 7 is mounted. After the carriage 5, the bogie 5 on which the AC servomotor 21 and the AC servomotor drive 22 of the holing machine 7 are further mounted. Are connected. The above-mentioned holing machine 7 is provided with two endless tracks 7a in which rubber shoes are arranged opposite to each other, and has an adjusting device 7b for tightening or expanding the interval between these endless tracks 7a. These endless tracks 7a are rotated by the rotational drive of the AC servomotor 21 transmitted through the flexible shaft 21a. Therefore, the cable 9 rotates while being gripped by these endless tracks 7a,
The cable 9 can be sent out, and the rotation can be stopped to keep the cable 9 held. The AC servomotor drive 22 has a groove 22a at the center thereof into which the cable 9 is inserted.
Guide rollers 23 for mounting the cable 9 before and after a, and beside the holing machine 7 are provided respectively. These trucks 5 have the same configuration as the truck 5 on which the rollers 8 are mounted.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. FIG. 10 is a schematic configuration diagram of an apparatus according to the second embodiment.
Two pairs of rails 25 are provided along the sinus 1 inside. A driving device 27 including two pairs of pulleys 26 between the two rails 25 is provided at a predetermined interval on the rails 25.
Is provided. Power is supplied to these driving devices 27.

A large number of carts 28 are mounted on the rails 25, and the carts 28 are connected to each other by pipe-like connecting rods 29 supported below the carts 28. The pair of pulleys 26 are held by the pulleys 26. A holing machine 30 is mounted on some of the bogies 28, and a roller 31 is mounted on the other bogies 28. When the cable 9 is placed on these carts 28, the above-mentioned holing machine 30 is operated to place the cables 9 on these carts 28. However, when the cables 9 are placed from one end of the many carts 28, The cable 9 is gripped by the above-mentioned holing machine 30. In this manner, the cable 9 is placed on a large number of carts 28,
Fix it.

When the power of the driving devices 27 is turned on and the pulley 26 is rotated, the connecting rod 29 is gripped by the pair of pulleys 26 and the pulley 26
The connection rod 29 is pulled by the rotation of, and the carriage 28 is pushed out in the front-rear direction. The carriage 28 carrying the cable 9 moves along the rail 25 in this manner, and the cable 9
Conveyed within. In addition, the cable 9 is transferred by operating the holing machine 30 of the cart 28 when changing the cable between the carts in the shaft and during the work of placing the cables on the shelves.

FIGS. 11 and 12 show the two pairs of pulleys 2.
The details of the drive device 27 consisting of 6 are shown, and these two pairs of pulleys 26 are provided between the two rails 25. Each of the pulleys 26 is rotatably supported by an appropriate frame 32, and each pulley 26 is connected by a belt.
The rotation of the AC turbo motor 33 provided on the side is transmitted to the belt via the flexible shaft 34, and the pulley 2
6 rotates. A pair of guide rollers 35 are provided before and after these pulleys 26. Therefore, the connecting rod 29 clamped by the pulley 26 passes between the guide rollers 35 located at the front and rear.

FIGS. 13 to 15 show details of the cart 28 on which the rollers 31 are mounted.
Wheels 37 running on the rails 25 are provided on both front and rear sides of the wheel 6. The rollers 31 are provided at the front and rear ends of the upper surface of the frame 36, respectively. The connecting rod 29 is fixed to a support 38 hanging down from the frame 36.
The cable 9 is placed on the two rollers 31. In addition, at the leading end of the bogie 28 on which the rollers 31 are mounted, a tapered tip portion 29a extends from the connecting rod 29 and protrudes from the leading end of the bogie 28 as shown in FIG.

FIGS. 17 to 19 show details of the carriage 28 on which the above-mentioned holing machine 30 is mounted. The above-mentioned holing machine 30 is mounted on one end of the bogie 28, and the AC servo motor 39 of the holing machine 30 is mounted on the other end. And a drive 40 for an AC servomotor. The above-mentioned holing machine 30 is provided with two endless tracks 30a in which rubber shoes are arranged, facing each other.
Has an adjusting device 30b that tightens or expands the distance between the two. These endless tracks 30a are driven by the rotation of the AC servomotor 39 by the flexible shaft 39a.
The rotation is transmitted through. Therefore, the cable 9 can be rotated while gripping the endless track 30a, and the cable 9 can be sent out. The AC servo motor drive 40 has a groove 40a in the center thereof, through which the cable 9 is inserted. Guide rollers 41 are provided at the front and rear ends of the carriage 28, respectively. These carts 28 have the same configuration as the cart 28 on which the rollers 31 are mounted.

Further, a pair of guide rollers 35 for holding and guiding the connecting rods 29 of the carriage 28 are provided at regular intervals of the rails 25. Particularly, where the rails 25 are curved, FIG. As shown in (1), one guide roller 35 is provided with a pipe guide 42 whose one side surface is curved. At this point, the tip 29a of the connecting rod 29 projecting from the front end of the leading carriage 28 hits the curved surface of the pipe guide 42, the direction of which is corrected, and is guided as it is between the pair of guide rollers 35. Has become. As a result, the connecting rod 29 maintains a predetermined position even at a curved portion of the rail 25, passes between each pair of guide rollers 35 and each pair of pulleys 26 provided at regular intervals on the rail 25, and each carriage 28 also bends. The rail 25 can also be run.

In the above-described embodiment, a driving device for pushing out the connecting rod at regular intervals of the rail is installed, and as the driving device, an endless track-type holing machine paired with a magnetic belt is used. The drive unit is not limited to the one described above, and may be any suitable drive device that pushes the connecting rod in the front-rear direction. In the above-described embodiment, the boring machine mounted on the bogie is provided with endless tracks facing each other. However, the present invention is not limited to this, and a cable is sandwiched between a pair of pulleys or rollers. An appropriate holing machine may be used as long as it pushes the cable forward or backward, such as a pusher or a motor roller.

[0023]

According to the invention of each claim, a rail is provided in the cave along the cave, and a bogie carrying a cable is run on this rail. The carriage is extruded by a drive device provided at regular intervals over the vehicle to travel. Therefore, it is only necessary to supply power to each drive device, and power supply management is easy. In addition, since the above-mentioned bogie is equipped with a holing machine that can use the conventional method, when installing cables on the bogie, when changing the cable between bogies and bogies in a shaft, and even when working on cable shelves By operating the bogie's holing machine, the cables can be easily transferred, and even if there is a height difference along the extension route, it is convenient to change the cables, and the efficiency of the cable transport operation is extremely good.

Further, once the cable is placed on the trolley, the cable is held down by a holing machine or the like, so that the cable does not fall off the trolley. Therefore, the speed of transporting the cable can be increased as compared with the conventional method, and the monitoring of the cable becomes easier than the conventional method. In addition, according to this method, a rail can be attached to one side of a floor in a cave, a wall surface, or the like, so that the work can be performed in parallel with other construction without taking up space. From the preparation stage of this construction method, it is possible to transport materials and equipment by using the cart.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an apparatus used in a first embodiment of the present invention.

FIG. 2 is a front view of a driving device including a magnetic belt used in the first embodiment of the present invention.

FIG. 3 is a side view of a driving device including a magnetic belt used in the first embodiment of the present invention.

FIG. 4 is a front view of a cart mounted with rollers used in the first embodiment of the present invention.

FIG. 5 is a plan view of a cart mounted with rollers used in the first embodiment of the present invention.

FIG. 6 is a side view of a truck mounted with rollers used in the first embodiment of the present invention.

FIG. 7 is a front view of a bogie equipped with a holing machine used in the first embodiment of the present invention.

FIG. 8 is a plan view of a bogie equipped with a holing machine used in the first embodiment of the present invention.

FIG. 9 is a side view of a bogie equipped with a holing machine used in the first embodiment of the present invention.

FIG. 10 is a schematic configuration diagram of an apparatus used in a second embodiment of the present invention.

FIG. 11 is a front view of a driving device including a pulley used in a second embodiment of the present invention.

FIG. 12 is a side view of a driving device including a pulley used in a second embodiment of the present invention.

FIG. 13 is a front view of a bogie mounted with rollers used in a second embodiment of the present invention.

FIG. 14 is a plan view of a truck mounted with rollers used in a second embodiment of the present invention.

FIG. 15 is a side view of a truck mounted with rollers used in the second embodiment of the present invention.

FIG. 16 is a front end perspective view of a leading truck used in the second embodiment of the present invention.

FIG. 17 is a front view of a bogie equipped with a holing machine used in a second embodiment of the present invention.

FIG. 18 is a plan view of a bogie equipped with a holing machine used in a second embodiment of the present invention.

FIG. 19 is a side view of a bogie equipped with a holing machine used in a second embodiment of the present invention.

FIG. 20 is a plan view of a guide roller and a pipe guide provided at a curved rail portion used in the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cave 2 Rail 3 Magnetic belt 4 Driving device 5 Dolly 6 Connecting rod 7 Holing machine 8 Roller 9 Cable 25 Rail 26 Pulley 27 Driving device 28 Dolly 29 Connecting rod 30 Holing machine 31 Roller

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yoji Kazama 4-16-36 Shibaura, Minato-ku, Tokyo Tokyo Electric Power Co., Ltd. Underground line construction site (72) Inventor Toshikatsu Abe 4--8 Shibaura, Minato-ku, Tokyo No. 33 Kandenko Co., Ltd. (72) Inventor Hidenori Sato 1-8-1 Hiranuma, Nishi-ku, Yokohama-shi, Kanagawa Pref.Kanagawa Branch Kanagawa Branch (72) Inventor Teruyoshi Ogata 4-chome Kamezawa, Koto-ku, Tokyo No. 17-10 Kandenko Co., Ltd. Tokyo Branch Construction Center (56) References JP-A-3-195310 (JP, A) JP-A-55-155507 (JP, A)

Claims (3)

(57) [Claims] In a method of transporting and laying a cable in a cave, rails are provided along the cave in the cave, a drive device is provided at regular intervals of the rail, and a large number of bogies are mounted on the rail. Then, these trucks carry cables connected and extended by connecting rods, and a holing machine is mounted on some of these trucks so that the cables can be sent out or gripped, and the connecting rods are driven by the driving device. Characterized in that the bogie is moved by being pushed out in the front-rear direction,
Cable transportation in cableway, laying method. 2. A method of transporting and laying a cable in a cave, in which a rail is provided along the cave, and a drive device composed of a magnetic belt is provided at regular intervals between the rails, and a plurality of rails are provided on the rail. The trucks are mounted, these trucks are connected by connecting rods, and the cables to be extended are mounted thereon, and a holing machine is mounted on some of these trucks so that the cables can be sent out or gripped, and the driving device of the driving device is mounted. A cable conveying and laying method in a canal, wherein the bogie is moved by attracting the connecting rod by magnetic force and pushing the connecting rod in a front-rear direction. 3. A method of transporting and laying a cable in a cave, in which a rail is provided along the cave, and a drive device comprising a pair of pulleys is provided at regular intervals of the rail, and a drive device is provided on the rail. A large number of carts are mounted, these carts are connected by connecting rods, and a cable to be extended is mounted, and a holing machine is mounted on a part of the carts so that the cable can be sent out or gripped, and the driving device Characterized in that the carriage is moved by holding the connecting rod between the pair of pulleys and extruding the connecting rod in the front-rear direction.