JPH08231014A - Long goods conveying method and conveying device used therefor - Google Patents

Abstract

PURPOSE: To convey a long goods efficiently and safely with a small number of workers but without flawing its surface by moving the long goods supported on a desired number of supporting trucks along a guide rail using a magnetic belt. CONSTITUTION: A supporting truck 3, which is supported suspendedly below a guide rail 2 with four driven rollers 24 fitted protrudingly upwards, is freely movable along the guide rail 2 and its under surface is fitted with a supporting means 19 for suspendedly supporting a long goods 1. The under surface of the guide rail 2 is provided with a magnetic body 28 of the supporting truck 3 and a magnetically attachable magnetic belt 5 which is rotatably driven in the longitudinal direction of the guide rail 2 by a driving mechanism 6. The long goods 1 is thereby moved along the guide rail 2 by the magnetic belt as being supported at its midway points in its longitudinal direction at intervals on a plurality of supporting trucks 3. Thus the long goods 1 is not easily applied with unreasonable force and does not fall off from the supporting truck 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable such as a power cable, a communication cable, an optical fiber cable or the like, a protective pipe for accommodating and protecting these cables inside, and a long pipe such as a flexible pipe or a fluid transport pipe. When pulling the same long object in the cave to lay the thing in the cave, on the contrary,
The present invention relates to a method of conveying a long object used when a long object laid in a cave is pulled out of the cave and a conveying device used for the method.

[0002]

2. Description of the Related Art Conventionally, there has been a method shown in FIG. 5 as one of the methods for drawing a long object such as a power cable, a communication cable, an optical fiber cable or the like into a cave. this is,
A cable (long product) B is pulled out from a cable drum A installed on the ground, and the cable B is guided by a large number of guide rollers C arranged along the laying route, and at the same time, a large number of laying along the laying line Underground cave E in manhole D while towing by holing machine F
It was designed to be pulled in mechanically. The holing machine F used here is as shown in FIG.
This is a device in which two opposite rotating belts G are sandwiched on both sides of the cable B and can be fed out in the rotating direction of the belt G.

[0003]

However, the above cable pulling method and the holing machine used therefor have the following problems. ． When the cable B is being towed by the holing machine F, the cable B may come off the roller C or the holing machine F. In this case, work may be delayed and the cable B may be damaged. is there. ． If a large number of holing machines F do not operate in synchronism, the cable B being pulled by the holing machine F
May slip, bend, twist, or swing up and down, in which case the cable B may be damaged or disengaged from the holing machine F. ． To prevent the accidents mentioned above, manhole D
Among them, a large number of workers I have to be arranged in the underground cavern E to monitor the laying condition of the cable B, but doing so increases the labor cost.

.. Recent ultra high voltage cable (voltage 375k
V or more), there is a tendency to reduce the number of connection points of the cable to reduce the connection cost, shorten the connection construction period and the entire construction period, and lengthen the cable in order to reduce the construction cost. The lengthening of the cable causes the cable drum to become larger, which makes it difficult to secure the installation space for the cable drum at the site of installation, restricts transportation to the site of installation, and places where the cable is pulled into the cave are extremely difficult. Will be limited to. In this way, if the length of the cable is increased, the cable pull-in distance will be several times longer than before, making the pull-in work even more difficult, and in proportion to this, more laying equipment will be required, and more Many workers have to be placed in the cave, which increases equipment costs and personnel costs, resulting in a significant cost increase.

An object of the present invention is to convey a long object efficiently, safely, and without scratching the surface of the long object when laying a long object, etc. An object of the present invention is to provide a method of transporting a long product and a transport device used for the method.

[0006]

As shown in FIGS. 1 to 4, the method of transporting a long object according to claim 1 of the present invention travels on a guide rail 2 installed in the transport direction of the long object 1. The long objects 1 are supported by a desired number of supporting carriages 3 which are mounted so as to be possible at desired intervals, and the supporting carriages 3 are moved along the guide rails 2 by the magnetic belts 5 so that the long objects 1 are guided. It is characterized in that it is conveyed along the line 2.

According to the second aspect of the present invention, as shown in FIG. 2, the method for transporting a long object has a desired number of movably mounted guide rails 2 installed in the direction in which the long object 1 is transported. The long objects 1 are supported on the supporting carriages 3 at desired intervals, the supporting carriages 3 are connected by a connecting tool 4, and some of the supporting carriages 3 are supported along a guide rail 2 by a magnetic belt. It is characterized in that the long object 1 is conveyed along the guide rails 2 by moving it by means of 5 and pulling the other supporting carriage 3.

As shown in FIGS. 1 and 2, the long object transporting apparatus according to claim 3 of the present invention is movable along the guide rails 2 arranged in the carrying direction of the long object 1. And two or more supporting carriages 3 capable of supporting the elongated object 1, and the guide rail 2 has a magnetic belt 5 magnetically attracted to the supporting carriage 3 and magnetically attracting to the supporting carriage 3. A drive mechanism 6 for moving the support carriage 3 along the guide rail 2 by rotating the magnetic belt 5 in the longitudinal direction of the guide rail 2 is provided.

As shown in FIG. 3, the long object transporting apparatus according to claim 4 of the present invention is movable along the guide rail 2 arranged in the carrying direction of the long object 1, and along the guide rail 2. Further, it is provided with two or more supporting carriages 3 capable of supporting the long object 1, and the supporting carriage 3 is magnetically attracted to the guide rail 2 and the magnetic belt 5 which can be attracted magnetically. A drive mechanism 6 for moving the support carriage 3 along the guide rail 2 by rotating the magnetic belt 5 in the longitudinal direction of the guide rail 2 is provided.

[0010]

In the method of transporting a long object according to claim 1 of the present invention, the long object 1 is supported by the magnetic belt 5 while being supported by a plurality of supporting carriages 3 at intervals in the longitudinal direction. Since 1 is moved along the guide rail 2, it is difficult to apply an unreasonable force to the long object 1 during the transportation, and the long object 1 is not detached from the support carriage 3 during the transportation. Can be transported.

In the method of transporting a long object according to a second aspect of the present invention, a plurality of supporting carriages 3 for transporting the long object 1 are connected to the connecting tool 4.
Since a part of the supporting cart 3 is driven by the magnetic belt 5, the long object 1 can be conveyed.

In the long object transporting apparatus according to claim 3 of the present invention, the supporting carriage 3 travels on the guide rail 2 by the rotation of the magnetic belt 5 while being magnetically attracted by the magnetic belt 5 of the guide rail 2. And therefore the support trolley 3
Even if the guide rail 2 is vertical, the guide rail 2 can travel on the rail 2 without fail, so that the long object 1 can be transported safely and securely.

In the long object transporting apparatus according to claim 4 of the present invention, while the magnetic belt 5 of the supporting carriage 3 attracts the guide rail 2, the supporting carriage 3 is caused to travel on the guide rail 2 by the rotation of the magnetic belt 5. And therefore support trolley 3
Even if the guide rail 2 is vertical, the guide rail 2 can travel on the rail 2 without fail, so that the long object 1 can be transported safely and securely.

[0014]

[Embodiment 1 of Long Object Transporting Apparatus] FIGS. 1 and 2 show a first embodiment of a long object transporting apparatus of the present invention, in which a guide rail 2 is laid on a ceiling or wall surface in a cave. This is an example of a case in which the guide carriage 2 is installed and the guide carriage 2 is hung so that the support carriage 3 travels. Further, the support carriage 3 is magnetically attached to the guide rail 2 by a magnetic belt 5 and a drive mechanism 6. This is an example of the case of driving to.

The support carriage 3 is suspended and supported below the guide rail 2 by four follower rollers 24 which are attached so as to project upward, and can freely run along the longitudinal direction of the guide rail 2. Has become. A chain block 25 is attached to the lower surface of the support carriage 3, and a long object (cable) 1 can be suspended and supported by a chain 26 hanging from the chain block 25. In this case, the long object 1 may be directly hung and supported by the chain 26, but the chain 26 may damage the long object 1. Therefore, a rope 27 is attached to the chain 26 and the long object 27 is long. The scale 1 may be suspended. The length of the chain 26 can be adjusted by the chain block 25. Immediately after the long object 1 is drawn in, the long object 1 is lowered and placed on a receiver provided on the wall surface in the cave. Or, when pulling out the old long object 1 from the cave, it is easy to pull up the long object 1 placed on the receiving tool.

A magnetic body 28 is attached to the upper surface of the support carriage 3, that is, the surface facing the guide rail 2. The magnetic body 28 serves to magnetically attract the magnetic belt 5 provided on the guide rail 2. Therefore, when the magnetic belt 5 is composed of a magnet that emits magnetic force (for example, a permanent magnet), the magnetic body 28 is composed of an iron plate or the like that can be magnetically attracted to the magnet or the magnetic belt 5.
When the magnetic belt 5 does not generate magnetic force and can be attracted to a magnet (permanent magnet), it is constituted by the magnetic belt 5 and an attractable magnet (permanent magnet). . When the magnetic body 28 is made of an iron plate or the like and the support carriage 3 is made of an iron plate or the like, the support carriage 3 itself can be the magnetic body 28, and therefore, as shown in FIG. It is not necessary to newly provide the magnetic body 28.

A large number of the support carts 3 are attached to the guide rails 2 as shown in FIG. In this figure, the magnetic bodies 28 are attached to all of the supporting carriages 3. However, if it is not necessary to drive all the supporting carriages 3 individually, the magnetic bodies 28 may be attached to every other supporting carriage 3. it can. Further, although each supporting carriage 3 is connected by the connecting tool 4 such as a rope or a chain, when all the supporting carriages 3 are individually driven, these supporting carriages 3 may not be connected by the connecting tool 4. . However, it is better to provide the connecting tool 4 in order to regulate the traveling interval of the support carriage 3. The length of the connecting tool 4 is appropriately set according to the method of supporting the long object 1.

The guide rail 2 is formed by connecting a large number of I-shaped steels, H-shaped steels and the like into a rail shape, and is installed in a cable laying line (in a cave). A magnetic belt 5 that can be magnetically attracted to the magnetic body 28 of the support carriage 3 is provided on the lower surface of the guide rail 2.

As described above, the magnetic belt 5 is made of a permanent magnet or the like when the magnetic body 28 is made of an iron plate or the like that does not generate magnetic force, and the magnetic body 28 is made of a permanent magnet or the like that emits magnetic force. In this case, the magnet is composed of an iron plate or a permanent magnet attracted to the magnet. Specifically, it is configured as follows. ． When magnetic force is applied to the magnetic belt 5, as shown in FIG. 1, a large number of magnets 31 are provided on the outer peripheral surface of the belt 30 such as a rubber belt that is wound between the driving roller 22 and the driven roller 23.
Install and configure. A permanent magnet is desirable as the magnet 31 in this case, but an electromagnet may be used as long as the structure is not complicated. In any case, a strong magnet is used as the magnet 31 so that the supporting carriage 3 does not slip even in the vertically installed guide rail 2, for example. ． When the magnetic belt 5 does not have a magnetic force, a large number of small iron plates or the like are attached to the outer peripheral surface of a belt such as a rubber belt that can be rotated around the driving roller 22 and the driven roller 23. Further, the belt itself may be made of a metal capable of attracting a magnet.

The magnetic belt 5 is rotatably driven in the longitudinal direction of the rail 2 by a drive mechanism 6 provided on the lower surface of the guide rail 2. This magnetic belt 5
The drive mechanism 6 is provided from the end of the guide rail 2 to the end of the guide rail 2 at regular intervals, and the support carriage 3 is continuously driven by the magnetic belt 5 and the drive mechanism 6. I am doing it. The mounting interval between the magnetic belt 5 and the drive mechanism 6 is set to an appropriate value in accordance with the length of the magnetic body 28 provided on the support carriage 3, and the position on the guide rail 2 where the support carriage 3 is located. Even if there is, be sure to use one of the magnetic belts 5
8 is magnetically attracted and driven by the rotation of the support belt 5.

The drive mechanism 6 includes a drive roller 22 and a driven roller 23, which are attached to the back surface of the guide rail 2 with a space therebetween, and an electric motor 2 provided on the drive roller 22 side.
0, and a belt 21 connecting the drive roller 22 and the electric motor 20. The magnetic belt 5 is rotatably attached to the drive roller 22 and the driven roller 23. The magnetic belt 5 is rotated when the electric motor 20 is rotated. In addition,
The drive roller 22 and the driven roller 23 are attached at appropriate positions so that the magnetic belt 5 can be magnetically attracted to the magnetic body 28 of the support carriage 3.

An electric wire (not shown) wired along the guide rail 2 is connected to the electric motor 20 of each drive mechanism 6, and the electric motor 2 is connected to the end of the electric wire.
Controller for controlling 0 (not shown)
Is connected. In this transport apparatus, by operating this controller, all electric motors 20 are turned on / off.
F control, rotation speed control, and rotation direction control can be performed. And by this, the support trolley 3
Can be run on the guide rail 2 and can also be stopped,
It is possible to accelerate, decelerate and change direction.

[0023]

[Embodiment 2 of Long Object Transporting Apparatus] FIG. 3 shows a second embodiment of the long article transporting apparatus of the present invention, in which the drive of the supporting carriage 3 traveling on the guide rail 2 is performed on the supporting carriage 3 side. This is an example of a case in which the magnetic belt 5 and the drive mechanism 6 attached to the drive mechanism are used.

Similar to the first embodiment, the supporting carriage 3 is suspended and supported below the guide rail 2 by four driven rollers 24 which are mounted so as to project upward, and are freely movable along the guide rail 2. Has been done. However, the magnetic belt 5 and the drive mechanism 6 described in the first embodiment are attached to the upper surface of the support carriage 3, that is, the surface facing the guide rail 2.

The magnetic belt 5 is used for the driving roller 2
The belt 3 which is rotatable around the roller 2 and the driven roller 23.
0 and a large number of magnets (permanent magnets) 31 attached to the outer peripheral surface thereof to magnetically attract the guide rail 2 and made of metal that does not generate the magnetic force described in the first embodiment. Is not used. This is because it is difficult to construct the guide rail 2 with a magnet and it is not practical.

Electric power is supplied to the electric motor 20 of the drive mechanism 6 from the guide rail 2 side via a power feeding mechanism (not shown) such as a pantograph of a train. The electric power on the guide rail 2 side can be controlled by a controller (not shown), and the support truck 3 can be caused to travel on the guide rail 2 by the controller. In this case, the support cart 3 can be stopped, accelerated and decelerated, and the traveling direction can be changed by operating the controller.

In the case of this device, a drive source consisting of the magnetic belt 5 and the drive mechanism 6 may be provided on all the supporting carriages 3 attached to the guide rails 2, but some of them may be provided in order to simplify the device. A drive source may be provided every other time. In this case, the supporting carriage 3 having no driving source is the supporting carriage 3 having a driving source.
Is pulled by the connecting tool 4.

[0028]

[Third Embodiment of Long Object Transporting Apparatus] FIG. 4 shows a third embodiment of the long object transporting apparatus of the present invention, in which the guide rail 2 is installed on the floor surface in the cave and the supporting carriage 3 is This is an example in the case of traveling on the guide rail 2.

A strong receiving metal fitting (supporting member 19) capable of holding and supporting the long object 1 underneath is attached to the upper portion of the support cart 3 so that the cable can be supported while supporting the middle of the long object 1 in the longitudinal direction. Can be transported. In this case, the long object 1 placed on the support tool 19 may be fixed to the support tool 19 with a rope or the like so as not to fall.

The support carriage 3 may be provided with a magnetic belt 5 and a drive mechanism 6 on the support carriage 3 side so that the guide rail 2 can travel, or the magnetic belt 5 can be arranged on the guide rail 2 side. A plurality of drive mechanisms 6 may be attached so that the guide rail 2 can travel.

[0031]

[Embodiment of method for conveying long object] Next, a method for conveying a long object of the present invention will be described. This is an example of a drawing operation in which the long object 1 wound on the cable drum is drawn into the manhole or the cave from the outside of the manhole that is the entrance to the cave.

In this case, the long piece 1 wound around the cable drum is pulled out from the same cable drum, and the tip end of the long piece 1 is installed along the line for drawing in the long piece 1.
I will bring you to. For example, as shown in FIG. 2, a plurality of supporting carriages 3 connected by connecting tools (chains) 4 are waiting on the guide rails 2, and the long object 1 is one of the supporting carriages 3 at the top. Attach to the support 19.

The leading carriage 3 is moved to the guide rail 2 and fed into the manhole, whereby the long object 1 is drawn into the manhole. When the chain 4 is stretched by the leading support carriage 3 and the next support carriage 3 travels on the guide rail 2, the same support carriage 3
The long object 1 is set on the supporting tool 19 and the long object 1 is pulled into the manhole together with the supporting carriage 3.

In this way, the long objects 1 are successively supported at intervals of 2 to 3 m in the longitudinal direction by the support tool 19 of the support carriage 3, and the long objects 1 are drawn into the manhole and the cave. Then, when the tip of the long object 1 reaches the tip of the laid track, the supporting carriages 3 traveling on the guide rails 2 are stopped all at once. Then, the long object 1 is removed from each of the stopped supporting carriages 3, and the long object 1 is set on a receiving tool provided at a predetermined position in the cave, whereby the installation is completed.

In this way, when the long object 1 is pulled into the cave from the manhole, the long object 1 supported by the supporting carriage 3 is prevented from coming into contact with the edge of the manhole or other places. Is desirable. For example, even in a place where the guide rail 2 is provided vertically along the vertical hole of the manhole, it is desirable that the long object 1 does not collide with the support carriage 3 or other objects. For this purpose, the support 19 for the long object 1 is made rigid as shown in FIG. 4, for example, so that the long object 1 does not sway during transportation and hit the support cart 3 or other parts. It is good to do so.

In this carrying method, the guide rail 2 can be laid on the floor surface or erected on the wall surface or the ceiling, but this can be selected according to the convenience of the work. .

If a steel material that can serve as the guide rail 2 that allows the support carriage 3 to travel is already installed in the cave, it can be used as the guide rail 2, and in this case, the lead-in work period can be shortened. Therefore, the construction cost can be reduced.

A magnet type propulsion system called a BTM system can be adopted as a method of driving the support cart 3, and in this case, the guide rail 2 as shown in FIG.
A method of providing the magnetic belt 5 and the driving mechanism 6 on the side or a method of providing the magnetic belt 5 and the driving mechanism 6 on the side of the supporting carriage 3 as shown in FIG. 3 can be used.

When the magnetic belt 5 and the drive mechanism 6 are provided on the support carriage 3 side, the magnetic belt 5 and the drive mechanism 6 may be attached to all the support carriages 3,
When the supporting carts 3 are connected by the chain 4, they may be attached to every several carts.

[0040]

EFFECTS OF THE INVENTION The method of transporting a long object according to claims 1 and 2 has the following effects. ． Since it is difficult to apply an unreasonable force to long objects during transportation, and there is basically no derailment of long objects, safe and reliable transportation can be performed. ． Therefore, it is not necessary to arrange a large number of observers along the laid track, and labor costs can be reduced. ． In many cases, a guide rail is installed in the cave, and in this case, it is possible to further shorten the construction period and reduce the construction cost.

In the long object transporting device of the third and fourth aspects, since the supporting carriage has a high traveling property and can travel even on a vertically or steeply inclined guide rail, it is easy to pull in the manhole vertically. I can do it.

[Brief description of drawings]

1A and 1B are a first embodiment of a method of transporting a long object and an apparatus used therefor according to the present invention, wherein FIG. 1A is a perspective view of a transport apparatus, and FIG. 1B is a front view of the transport apparatus.

FIG. 2 is a side view of the transfer device shown in FIG.

FIG. 3 is a side view of a conveying device, which is a second embodiment of the method for conveying a long object of the present invention and an apparatus used for the same.

FIG. 4 is a third embodiment of the method of transporting a long object of the present invention and the apparatus used for the method, and is a front view of the transport apparatus.

FIG. 5 is an explanatory view showing a conventional method for pulling in a long object.

FIG. 6 is a perspective view showing an example of an apparatus used in a conventional drawing method.

[Explanation of symbols]

 1 Long Object 2 Guide Rail 3 Support Cart 4 Connecting Tool 5 Magnetic Belt 6 Drive Mechanism

Claims (4)

[Claims] 1. A long object (1) is arranged at desired intervals on a desired number of supporting carriages (3) movably mounted on guide rails (2) installed in the conveying direction of the long object (1). Support
The support cart (3) is moved along the guide rail (2) by the magnetic belt (5) so that the long object (1) is conveyed along the guide rail (2). How to transport long objects. 2. The long objects (1) are arranged at desired intervals on a desired number of supporting carriages (3) movably mounted on guide rails (2) installed in the conveying direction of the long objects (1). Support
The supporting carriages (3) are connected by a connecting tool (4), and some of the supporting carriages (3) are moved by a magnetic belt (5) along the guide rails (2). A method of transporting a long object, characterized in that the long object (1) is transported along the guide rail (2) by pulling the other supporting carriage (3). 3. A guide rail (2) arranged in the conveyance direction of the long object (1), and two or more movable along the guide rail (2) and capable of supporting the long object (1). A supporting belt (3), and the guide rail (2) has a magnetic belt (5) magnetically attracted to the supporting truck (3) and a magnetic belt magnetically attracting to the supporting truck (3). A long object provided with a drive mechanism (6) for moving the support carriage (3) along the guide rail (2) by rotating the (5) in the longitudinal direction of the guide rail (2). Transport device. 4. A guide rail (2) arranged in the conveyance direction of a long object (1), and two or more movable along the guide rail (2) and capable of supporting the long object (1). And a magnetic belt (5) that can be magnetically attracted to the guide rail (2) and a magnetic attraction to the guide rail (2). A drive mechanism (6) for moving the support carriage (3) along the guide rail (2) by rotating the belt (5) in the longitudinal direction of the guide rail (2). Scale conveyor.