JPH04281317A - De-icing and de-snowing apparatus for electric wire - Google Patents

Abstract

PURPOSE:To increase de-snowing efficiency without being influenced by weather conditions, by removing ice and snow attaching on electric wires with a machine. CONSTITUTION:Running caterpillars(RC) 1 run holding an electric wire 10 between, and a rubber piece 1a is fitted to the contact segments of the caterpillars (RC) 1 to prevent the damage on the surface of the electric wire 10. Snow and ice removing caterpillars (SC) 2 are connected to the front of the RCs 1 with a connecting mechanism 5, and hard contact segments 2a being hard and sharp in shape are fitted to the contact segments of the SCs 2. An expanding and contracting mechanism 3 expands and contracts so that substances having diameters larger than the electric wire 10 such as a connecting sleeve, a spacer clamp, etc., for example, can be passed between the RCs 1. A cylinder 4 applies pressure large enough to break ice and snow 20 to the SCs 2. And a power source 6 gives power to the RCs 1 and SCs 2. Accordingly, ice and snow 20 can be broken and removed by dropping with the SCs 2 only by making the RCs 1 run on the wire 10 with snow.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing ice and snow from electric wires, which can efficiently collapse and fall ice and snow from electric wires.

0002

[Prior Art] Icing and snow on electric wires often grow to a large diameter in a short period of time, which increases the tension on the wires and causes disconnection accidents, or sleet jumps and galloping due to wind pressure. This may cause abnormal vibrations, which may lead to serious accidents such as phase-to-phase short circuits.

[0003] For this reason, removing ice and snow from such electric wires has become one of the major challenges in this industry.

Conventionally, a simple and reliable method for removing ice and snow on electric wires has been to hit the electric wires manually with a stick to make them fall.

[0005] Other devices have also been proposed that do not require manual effort, but instead use a scraper that can run on the wires to scrape off the wires. (Jitsukai Showa 60-160025)

[0006]

[Problem to be solved by the invention] The method of manually hitting electric wires with a stick can be applied to ordinary electric wires, but when the object is an optical fiber composite overhead ground wire or an overhead optical cable, it may cause damage to local parts. This method cannot be used because it applies a sudden external force, which may adversely affect the internal optical fiber and degrade its performance.

[0007] Furthermore, this manual method is not preferable from a safety point of view, since the work is carried out under bad weather conditions during the winter season.

[0008] The method of running the scraper is effective if the ice and snow are soft and sherbet-like.
If hard ice forms, the scraper itself will not move. Furthermore, when this frozen state occurs, it is difficult to remove it simply by hitting it with the stick.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, an object of the present invention is to provide a novel ice and snow removing device that can disintegrate and fall even hard ice simply by running it on electric wires. It is something.

0010

[Means for Solving the Problems] The present invention is constructed by disposing a caterpillar having hard and sharp pieces capable of collapsing and falling snow and ice on the electric wire in front of a traveling caterpillar that can run on the electric wire. The caterpillar piece is composed of a rubber piece for running on the electric wire, and a metal piece for causing ice and snow to fall off the electric wire.

[0011]

[Operation] If the electric wire is run so as to be held between caterpillars, and the caterpillars are equipped with sharp pieces made of metal, for example, that can crush ice and snow and make them fall, pressure is applied to the caterpillars with, for example, cylinders. This allows the ice and snow to easily break up and fall.

0012

[Examples] The present invention will be explained below with reference to Examples.

FIG. 1 is an explanatory diagram showing an embodiment of the ice and snow removing device according to the present invention.

1 is a running caterpillar that can run while holding an electric wire 10 as shown in the figure (this may be something like an endless belt or chain, and the concept of a caterpillar includes all such configurations) ), and rubber pieces 1a, 1a are attached to the pieces of the traveling caterpillar 1 so as not to damage the surface of the electric wire.

Reference numeral 2 denotes an ice-falling and snow-falling caterpillar provided in front of the traveling caterpillar 1 by means of a connecting mechanism 5, and the pieces of this ice-falling and snow-falling caterpillar 2 are made of hard and sharp shapes such as metal or hard plastic. Hard pieces 2a, 2a are attached.

Reference numeral 3 denotes a telescoping mechanism that expands and contracts so that the traveling caterpillar 1 can pass through an object having a larger external shape than the electric wire 10, such as a connection sleeve or a spacer clamp. 6 is a power source that powers the caterpillars for running and falling ice and snow, and 7 is a power cord or a pulling rope. In the case of a pulling rope, a gasoline engine or the like will be used as the power source.

Since the device according to the present invention is constructed as described above, simply by running the traveling caterpillar 1 on the electric wire 10, the ice-falling caterpillar 2 runs while collapsing the ice and snow 20 and removing it. You can go there.

If there is a damper or the like in the middle of travel, the caterpillar may be arranged horizontally instead of vertically as shown in the figure, thereby making it easier to pass through the damper section.

FIG. 2 shows another embodiment of the present invention, and shows an example in which the traveling caterpillar of FIG. 1 and the ice-falling/snow-falling caterpillar are combined to form a running/ice-falling caterpillar 1A. .

In this embodiment, the caterpillar pieces are rubber pieces 1a, 1a for running and metal pieces 1b, 1b for breaking up ice and snow, alternately as shown in the figure (not necessarily limited to every other piece). It is installed. As a result, the rubber piece 1a runs the caterpillar 1A, and the metal piece 1b plays the role of removing broken ice and snow, respectively, so that the whole can be made compact and economical.

[0021] When the ice and snow are extremely hard, a horizontally rotating circular saw is further equipped in front of each of the above embodiments.
The device may be configured to facilitate advancement.

[0022] With the above structure, since a rubber piece is used on the surface that runs in contact with the electric wire, there is no risk of damaging the surface of the electric wire, and moreover, it is possible to reliably remove ice and snow.

[0023]

[Effects of the Invention] As described above, according to the present invention, since ice and snow accumulated on electric wires are removed mechanically, it is not only possible to improve efficiency without being influenced by weather conditions, but also to improve efficiency. Because it uses caterpillars, the surface pressure on the wire is dispersed and is not concentrated locally as it would be if you hit it with a stick, so there is no risk of performance deterioration even with wires with built-in optical fibers. can demonstrate.

[Brief explanation of the drawing]

FIG. 1 is an explanatory sketch showing one embodiment of the present invention.

FIG. 2 is an explanatory sketch showing another embodiment according to the present invention.

[Explanation of symbols]

1 Traveling caterpillar 1A　Traveling and falling ice and snow caterpillar 1a Rubber piece 1b Metal piece 2 Falling ice and snow caterpillar 2a Hard piece 3. Telescoping mechanism 4 Cylinder 5 Connection mechanism 6 Power source 7. Cord or rope 10 Electric wire 20 Ice and snow

Claims (2)

[Claims] 1. A device for removing ice and snow from electric wires, which comprises a caterpillar having hard and sharp pieces capable of collapsing and falling ice and snow from electric wires, arranged in front of a traveling caterpillar capable of traveling on electric wires. [Claim 2] An electric wire comprising a caterpillar that can run on an electric wire, and the caterpillar piece is composed of a rubber piece for running on the electric wire and a metal piece that can collapse and fall ice and snow on the electric wire. Ice and snow removal device.