JPH02250606A - Wire conveyor - Google Patents

Abstract

PURPOSE:To automatically release carrying of a wire by a carrier during wire arrangement by lifting a prefabricated wire to invert a wire conveyor, releasing a locking pawl by utilizing a tensile force to be applied to the connector of the carrier to release locking of a door, and opening the door by its own weight. CONSTITUTION:A leading prefabricated wire W1 is carried to a wire conveyor 1, and a jointing rope J is wound at an engine field E while connecting the conveyor 1 to the rope J. Then, a split wire R is connected to an anchoring clamp C at the rear end of the wire W1, and extended. When the wire W1 at the head arrives at a tightening section, the wire W1 is separated, and is made to be supported by a pulley set. Then, the wire W1 is lifted, and the conveyor 1 is inverted. When the conveyor 1 is opened, the leading wire W1 is moved to an iron tower arm TA, and the rope is recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a wire carrier used for conveying wire (cableway extension).

In this specification, the term "electric wire" includes not only ordinary power transmission lines, but also communication cables such as optical fiber cables, and various wires and ropes used in wire extension work.

<Conventional technology> As a conventional power line carrier, for example, the power line construction material No. 3
Volume 3 (Transmission Line Construction Technology Study Group; Published December 1986)
The method used in the construction method shown on pages 61 to 131 of the above is known. This electric wire carrier is composed of a carrier body called a windmill type and a carrier connected to the carrier body via a hanging rope.

<Problems to be Solved by the Invention> One of the drawbacks of such conventional electric wire carriers is that the electric wires cannot be automatically released from being carried by the carriers, and therefore the work of collecting the electric wires is difficult.

In other words, after the entire line extension section has been completed and the extended wires are placed on a board with the carriers still attached, the carriers are removed from the wires manually on each tower, and then the wires are placed in the drum field. A reasonable amount of work is required to collect the carrier at the engine site.

Therefore, an object of the present invention is to provide a wire carrier that can automatically release the wire from being carried by the carrier during wire stretching.

Specifically, the carrier consists of a carrier main body and a holder, and the holder has a connecting part for connecting to the carrier main body, and the mounting part to the connecting part can be rotated and attached to the connecting part as a fulcrum. It is equipped with a pair of doors that can be opened and closed freely, a plurality of supporting rollers attached to the tips of the pair of doors, and a locking device. To provide an electric wire carrier comprising a rectangular frame-shaped door lock frame disposed in a slidably movable state and a pair of lock claws for restraining the door lock frame from sliding in normal times.

Functions> Taking the example of extending prefabricated electric wires, this electric wire carrier is used in the following manner.

In other words, a plurality of prefabricated electric wires for the extended line section connected with split wires are sequentially pulled up from the optical prefabricated electric wire in the corresponding tensioned section, and temporary tensioned lines are carried out while the following prefabricated electric wire extensions and used wire carriers are removed. It is used to collect prefabricated wires in the relevant tension section, and the wire carrier is reversed, that is, turned upside down, and in this state, the tensile force applied to the connection part of the carrier is used. By releasing the lock pawl, the door lock frame is slid and the lock on the door by the door lock frame is released. When this lock is released, the door is rotated and opened by its own weight in the inverted state, and the prefabricated electric wire is removed. Then, in parallel with the temporary tensioning of the prefabricated electric wires released from the electric wire carrier, the prefabricated electric wires that will continue to be stretched are carried out, and at the same time, the released carriers are collected.

Therefore, according to this wire carrier, the carrier can be recovered at the same time as the wire is stretched, so that the wire extension work can be further streamlined.

Example of implementation Embodiments of the present invention will be described below based on the drawings.

This electric wire carrier 1 consists of a carrier body 2 and a carrier 3, as shown in FIGS. 1 and 2.

The carrier body 2 includes a roller section 4 which is a "running means" for traveling on a support line S, which will be described later, a connecting section 5 for attaching to a connecting rope J, which will be described later, and a connecting section to which the carrier 3 is connected. 6 and more.

The roller section 4 is provided with a pair of running rollers 7.7 and a lock door 8 for preventing the running rollers 7.7 from coming off the support line S.

Further, in the connecting portion 6, the guide receiver is provided at the tip of the frame 9, and the guide receiver is provided with the frame 9 and the guide receiver is equipped with a roller 10, and the guide receiver is provided with a supporter 40, which will be described later.
You will receive guidance when passing through.

The structure of the carrier main body is not limited to this example, and any structure that can be connected by the connecting rope J and run on the support line S is sufficient.

The carrier 3 has a connecting portion 11 as shown in FIGS. 3 to 5.
, a pair of doors 12.12. three carrier rollers 13.13.
13 and a locking device 14.

The connection part 11 consists of a connection lever 17 to which an eye ring 16 is attached for connecting the hanging rope 15 interposed between the carrier body 2 and a mounting part 18 to which the door 12.12 is attached. The lever 17 is connected to the guy of the mounting part 18,
It is fitted in a sliding state inside the cylinder 19, and is adapted to slide as shown by arrow X with respect to the mounting portion 18. The connection lever 17 is normally connected between a flange-shaped lock claw release body 20 integrally formed on the connection lever 17 and a nut-shaped receiver body 21 attached to the lower end of the mounting portion 18. It is in a state where it is pulled in the direction of arrow Y by a spring 22 provided therein.

The door 12.12 is attached to the mounting part 18 as mentioned above, but specifically, it is attached with bolts and nuts 23, and the attachment with this port and nut 23 is done by using the part as a fulcrum and moving the arrow. It is designed to rotate as shown in Z.

The carrying rollers 13 have a gentle truncated conical shape, and the two at the front and rear are fixed to one door 12, and one of the rollers facing different directions is fixed to the other door 12, so that the carrying groove 24 is fixed.
is formed. Regarding the inclination angle of the carrying roller 13,
The load of the electric wire W acts to open the door 12.1-2, and if it is too large, the force trying to open the door 12.12 becomes too large, and the force of the locking device 14, which will be explained later, becomes too large. There is a relationship in that the sliding property of the door lock frame 26 is deteriorated. It goes without saying that the number of supporting rollers 13 is not limited to three.

The locking device 14 includes four rollers 27.27, .
A door lock frame 26 which is assembled into a rectangular frame shape by four connecting frames 29, 29, .
and a pair of upper stops 31.31 and a pair of lower stops 32.3 respectively provided on the door 12.12.
2 and more.

The door lock frame 26 is arranged so as to surround the door 12.12, and is slidable in the direction of arrow U (up and down). The lower limit is now regulated. Further, the locking claws 30.30 are attached to the mounting portion 18 together with the door 12.12 by the aforementioned bolts and nuts 23, and are configured to rotate as shown by the arrow V. It is urged by a spring in the direction indicated by the arrow.

In addition, 33 in FIG. 4 is a regulation roll for preventing the electric wire from touching the corner of the door 12.12.

This electric wire carrier 1 operates as follows.

That is, the wire carrier 1 is inverted due to the state described below.
In other words, when a tensile force above a certain level is applied to the hanging lobe 15 in the upside down state, the connection lever 17 slides in the direction of arrow M against the spring 22, and the lock claw release body 20 moves to the lock claw 30. Rotate the .30 to the position shown in Figure 5. Then, the door lock frame 26, which has lost its support from the lock claws 30, 30, is moved to the stopper 31.3.
It falls due to its own weight until it hits 1 and stops.

As a result, the rollers 27 and 27 of the door lock frame 26
．． The door 12.12 is lowered below the bolt/nut 23, which is the rotational fulcrum of the holder 12, and the door 12.12 receives the force from the load of the electric wires and opens under its own weight as shown in Fig. 5. 3 is released from the electric wire W.

Hereinafter, a prefabricated construction method using this electric wire carrier 1 will be explained.

Holding and extending the connecting rope (Fig. 6) The support line S and the connecting rope J are extended over the entire extension section, and the supporting line S is supported by the supporter 40, and the connecting rope J is placed inside the supporter 40. Pass it through.

Here, as shown in FIGS. 7 and 8, the supporter 40 includes a hanging portion 41 for hanging from the steel tower T, and a support line S.
42 for supporting the connecting rope J, guide wheels 43, 43 for guiding the passage of the connecting rope J, and the wire carrier 1
Guide frame 44 for guiding the entry and passage of.
44, regulation rolls 45, 45 for preventing the electric wires from touching the corners of the supporter 40, and electric wire passing portions 46, the electric wire carrier 1 is equipped with the eighth It will pass in the state shown in the figure.

Conveyance/Wire Extension (Fig. 6) This conveyance/wire extension construction method is carried out using a prefabricated electric wire Wi (i is an integer) which is cut in advance to a length corresponding to the wire tension section and connected to a restraining clamp C at both ends.

First, the first prefabricated wire W1 is carried by a plurality of wire carriers 1, l, ...... in a drum field, and these wire carriers 1.11... This connecting rope J is wound up on the engine station E side while being connected to the connecting rope J at intervals (usually 20 to 30 m).

Next, when the rear end of the prefabricated wire W1 comes out from the wire drum H, connect the split wire R to the retaining clamp C at the rear end, and connect the split wire R to a predetermined length (usually a prefabricated wire) in the same manner as the prefab wire W1. (equivalent to the length of W1).

Then, attach the next prefabricated wire W2 to the rear end of the split wire R.
The ends of the prefabricated wires Wi are connected and the wire is extended in the same manner as described above, and the same operation is repeated for the number of prefabricated electric wires Wi corresponding to the length of the wire extension section.

When the first prefabricated wire W1 reaches the corresponding tension section, separate the prefabricated wire W1, prepare both ends in advance, and support it in a semi-assembly using K (see Fig. 9). )
.

Next, the prefabricated electric wire W1 is pulled up by the semi-group K, and the electric wire carrier L1 carrying the prefabricated electric wire W1 is placed.
・−・・・− is reversed. Then, as described above, the door 12.12 of the carrier 3 is opened, and the wire carrier 1 is released from the prefabricated wire W (FIG. 10).

Electric wire carrier 1111 for the prefabricated electric wire W1 at the top of the conveyor line parallel to the temporary tensioner.
When ...... is released, move the leading prefabricated electric wire W1 to the corresponding tower arm TA and proceed with the temporary tension work, and at the same time, wind up the connecting rope J and remove the released electric wire. Carriage L 1,...°P to engine station E
At the same time as the next prefabricated electric wire W is collected, the next prefabricated electric wire W is made to reach the corresponding tension line section, and the same work as the first prefabricated electric wire W is performed.

The work that was repeated for the prefabricated electric wire will be repeated for each subsequent prefabricated electric wire, and the line extension will be completed for the entire section.

<Effects of the Invention> As explained above, the wire carrier according to the present invention consists of a carrier main body and a carrier, and the carrier has a connecting part for connecting to the carrier main body, and is attached to the connecting part using the part as a fulcrum. It is equipped with a pair of doors that can be rotated and opened/closed, a plurality of supporting rollers attached to the tips of the pair of doors, and a locking device. It is equipped with a rectangular door lock frame that can be slid freely along the door, and a pair of lock claws that prevent the door lock frame from sliding in normal conditions. When the lock on the door by the door lock frame is released and the door is opened, the electric wire is automatically released.

Therefore, according to this wire carrier, there is no need to open the wire carrier, and the wire carrier can be recovered at the same time as the wire is being stretched, so that the wire extending work can be further streamlined.

[Brief explanation of drawings]

Figure 1 is a schematic side view of the wire carrying device, Figure 2 is a schematic side view seen from the direction of the arrow ■ in Figure 1, and Figure 3 is a schematic side view including a partial cross section of the carrier. , FIG. 4 is a schematic side view including a partial cross section as seen from the direction of the arrow ■ in FIG. 3, FIG. is a side view schematically showing the wire extension work, Fig. 7 is a schematic side view of the support, Fig. 8 is a schematic side view seen from the direction of arrow ■ in Fig. 7, and Fig. 9 is a prefabricated FIG. 10 is a side view schematically showing the process of pulling up the electric wire, and FIG. 10 is a side view schematically showing the process of pulling up the prefabricated electric wire and opening the carrier. 1...--Wire carrier 2...Carrier body 3--Carrier/carrier 11...--Connection part 12-- ...Door 13--Carrying roller 14--Lock device 15--Door lock frame 30--Lock claw Fig. 135 1999 (Voluntary writing of I-dera Rolla 2nd figure procedure correction)

Claims (1)

[Scope of Claims] Consisting of a carrier body and a carrier, the carrier includes a connection part for connecting to the carrier body, a pair of doors that can be rotated and opened and closed using the attachment part to the connection part as a fulcrum, It is equipped with a plurality of supporting rollers and a locking device attached to the tips of the pair of doors, and the locking device is arranged so as to surround the pair of doors and to be able to slide freely along the pair of doors. A wire carrier comprising a rectangular door lock frame and a pair of lock claws that prevent the door lock frame from sliding during normal operation.