JP7055278B2 - Ice and snow removal device - Google Patents

Description

The present invention particularly relates to an iced snow removing device for removing iced snow adhering to an overhead power transmission line.

Conventionally, in an overhead transmission line installed in an area with snowfall in winter, icing snow adheres to the overhead transmission line, and an abnormal load generated on the overhead transmission line when the icing or snowfall falls off. , The fictitious power transmission line jumps up when icing or snowfall falls, and the fictitious power transmission line with icing snow may violently move due to strong winds, resulting in tower damage or electrical accidents.

Further, when the icy snow falls from the fictitious power transmission line, the icy snow may hit a house or a vehicle existing below the fictitious power transmission line, leading to a property damage accident. Here, icing snow is meant to include both icing and snow accretion.

In order to prevent snow accretion on overhead power transmission lines that cause such property damage accidents, so-called snow accretion rings (see, for example, Patent Document 1) and anti-twist dampers (see, for example, Patent Document 2). ) And snow accretion prevention measures such as a snow melting spiral (see, for example, Patent Document 3) have been applied to the overhead power transmission line.

Here, the snow accretion ring is a ring made of, for example, a synthetic resin, which is attached to an overhead power transmission line at regular intervals. By attaching multiple snow accretion rings to the overhead power transmission line at predetermined intervals, it is possible to prevent snow accretion while moving along the twist of the overhead power transmission line consisting of stranded wires, and to prevent snow accretion. It is possible to prevent snow accretion (hereinafter, also referred to as "cable snow") from growing.

The anti-twist damper is a counterweight attached to an overhead power transmission line, and can prevent the overhead power transmission line from twisting due to its own weight of snow accretion and prevent snow accretion from growing into a tube snow. The snowmelt spiral melts the snow adhering to the overhead transmission line by winding the snowmelt line around the overhead transmission line, and the current flowing through the overhead transmission line generates eddy currents in the ferromagnetic snowmelt line. The Joule heat generated by this eddy current causes the snowmelt wire to generate heat and melt the snow.

Even with the above-mentioned measures to prevent snowfall, it is not possible to completely prevent snowfall, and if snowfall remains, a worker climbs a steel tower and embarks on an overhead power transmission line to snowplow. Snow removal robots have also been developed to remove snow directly or to remove iced snow in recent years.

Japanese Unexamined Patent Publication No. 16-167947 Japanese Unexamined Patent Publication No. 5-146018 Japanese Patent Application Laid-Open No. 2003-134651

However, it is not efficient for the above-mentioned workers to climb the tower and directly remove the iced snow on the overhead transmission line, and it is not efficient to use the snow removal robot because of battery problems and time-consuming preparation. rice field.

Therefore, in view of the above problems, it is an object of the present invention to provide an icy snow removing device capable of easily dropping and removing icy snow adhering to an overhead power transmission line with an easy and simple configuration.

In order to achieve the above object, in the present invention, it is a icing snow removing device for removing icy snow adhering to an imaginary transmission line supported via a plurality of iron towers, and the longitudinal direction of the imaginary transmission line is A state in which a rope-shaped member hung in an intersecting direction, a tension applying portion that applies a constant tension via one end of the rope-shaped member, and a state in which the tension is applied by being attached to the other end of the rope-shaped member. It is provided with a vibrating portion that applies vibration to the overhead power transmission line via the rope-shaped member of the above.

Further, in the present invention, the vibrating portion applies vibration to the overhead power transmission line by pulling the rope-shaped member with a predetermined pulling force and then releasing the pulling force on the rope-shaped member. Is preferable.

Further, in the present invention, the rope-shaped member is preferably an insulating rope.

Further, in the present invention, when the rope-shaped member is hung on the overhead power transmission line, the flying object has one end or the other end of the rope-shaped member and flies in a direction intersecting the longitudinal direction of the overhead power transmission line. It is preferable to further provide.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an icy snow removing device capable of easily removing icy snow adhering to an overhead power transmission line by dropping it with a simple and simple configuration.

It is a block diagram which shows the whole structure of the icing snow removing apparatus which concerns on embodiment of this invention. It is a perspective view which provides the description of the method of hanging an insulating rope on an overhead transmission line in the ice-snow removal apparatus which concerns on embodiment of this invention.

<Embodiment of the present invention>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Overall configuration of ice and snow removal device>
As shown in FIGS. 1 and 2, the ice and snow removing device 10 according to the embodiment of the present invention is roughly divided into an insulating rope 30 as a rope-like member for hooking on an overhead transmission line 20 and an insulating rope 30 thereof. A tension applying portion 40 (a jumping wire wheel 41 and a tension adjusting winch 42), a vibrating portion 50 (a vibrating device 51 and a generator 52), and an air vehicle 60 (a vibrating body 51 and a generator 52) that apply a constant tension to the rope. In this case, for example, a drone or a small helicopter) is provided.

The overhead power transmission line 20 is supported between the tower 11 and the tower 11, and the transmission voltage also ranges from a low voltage of about 66,000 volts to a high voltage of about 500,000 volts. The overhead power transmission line 20 is supported in a state of being insulated from the steel tower 11 via an insulator 12 provided in the steel tower 11.

The insulating rope 30 is a rope-shaped member covered with an insulating member or made of an insulating material so that the power supply can be hooked to the overhead power transmission line 20 without stopping the power supply via the overhead power transmission line 20. .. Examples of the insulating member include polyethylene, epoxy resin, vinyl chloride, synthetic rubber and the like.

The insulating rope 30 is hooked in a direction intersecting the longitudinal direction of the overhead transmission line 20, for example, in a direction perpendicular to the longitudinal direction of the overhead transmission line 20, and makes at least one rotation on the outer peripheral surface of the overhead transmission line 20. It is preferable that it is in a wound state. As a matter of course, the insulating rope 30 may be wound around the outer peripheral surface of the overhead power transmission line 20 more than once.

The tension applying portion 40 has, for example, a jumping wheel 41 and a tension adjusting winch 42. The jumping wheel 41 is a pulley for pulling the insulating rope 30 by the tension adjusting winch 42 along the ground while being installed on the ground (ground).

The tension adjusting winch 42 is a so-called hoisting machine that adjusts the tension to a constant tension while holding one end of the insulating rope 30 by the rotational force of a prime mover (not shown). However, the jumping wheel 41 is not essential, and a constant tension may be applied by the tension adjusting winch 42 without using the jumping wheel 41.

The vibrating unit 50 has a vibrating device 51 and a generator 52. The vibration exciter 51 is a so-called vibration generator or vibration generator, and is a device that applies mechanical vibration to the overhead transmission line 20 while holding the other end of the insulating rope 30 from the outside. The exciter 51 is driven by receiving electric power supplied by the generator 52.

For example, since the insulating rope 30 is in a state where a constant tension is applied by the tension applying portion 40, the vibrating device 51 pulls the insulating rope 30 with a predetermined pulling force and then releases the insulating rope 30. , It is possible to apply vibration that moves far in the vertical direction to the overhead power transmission line 20. The exciter 51 may apply vibration to the insulating rope 30 so as to move the overhead transmission line 20 in the left-right direction (horizontal to the ground). As long as the ice and snow can be dropped by vibration, the magnitude and direction of the vibration does not matter.

As shown in FIG. 2, the flying object 60 is, for example, a drone on the market, a radio-controlled helicopter, or the like. In this case, the flying object 60 flies around the overhead transmission line 20 in response to the operation of the operator S while holding the other end of the insulating rope 30, so that the insulating rope 30 is attached to the overhead transmission line 20. It can be wrapped around the outer peripheral surface.

In the above configuration, a method of removing iced snow using the iced snow removing device 10 will be described. First, the operator S attaches and holds the other end of the insulating rope 30 to the flying object 60. In that state, the worker S in a safe place makes one rotation around the fictitious power transmission line 20 while holding one end of the insulating rope 30 with respect to the fictitious power transmission line 20 to which the iced snow 13 is attached. Fly the flying object 60.

As a result, as shown in FIG. 2, the insulating rope 30 is hooked in the vertical direction intersecting the longitudinal direction of the overhead power transmission line 20 and is wound around the outer peripheral surface of the overhead power transmission line 20.

After that, the worker S attaches one end of the insulating rope 30 to the tension adjusting winch 42, attaches the other end of the insulating rope 30 to the vibration exciter 51, and then loosens the insulating rope 30 by the tension adjusting winch 42. A predetermined tension is given by pulling so as to eliminate.

In this state, the worker S pulls the insulating rope 30 with a predetermined pulling force by the generator 52 via the exciter 51, and then releases the pulling force on the insulating rope 30 at once, whereby the overhead power transmission line 20 Can be violently moved up and down. The icy snow falls due to the distant movement of the fictitious transmission line 20 at this time. By moving the insulating rope 30 in contact with the overhead power transmission line 20, the worker S can completely scrape off the iced snow remaining on the overhead power transmission line 20.

In the ice / snow removing device 10, when the vibrator 51 and the generator 52 of the vibration unit 50 cannot be installed, the worker S on the ground manually vibrates the insulating rope 30 to cause an overhead power transmission line. The 20 may be moved far so that the icing snow falls.

According to the above configuration, the ice / snow removing device 10 can easily remove the ice / snow 13 adhering to the overhead power transmission line 20 by a simple configuration without endangering the worker S. Further, by using the insulating rope 30 and the flying object 60, the icing and snow removing device 10 can easily carry out the icing and snow removing work without stopping the power supply by the overhead power transmission line 20.

Further, the ice / snow removing device 10 has a simple configuration in which a tension applying unit 40 (a jumping wheel 41 and a tension adjusting winch 42) and a vibration exciting unit 50 (vibration device 51 and a generator 52) are only used. Therefore, preparation is easier than when a heavy machine is installed to remove icy snow, and icy snow can be removed efficiently.

<Other embodiments>
Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the ice / snow removing device 10 according to the above embodiment, and is included in the concept of the present invention and the scope of claims. Including all aspects. In addition, each configuration may be selectively combined as appropriate so as to achieve at least a part of the above-mentioned problems and effects. For example, the arrangement, combination, and the like of each component in the above embodiment can be appropriately changed depending on the specific usage mode of the present invention.

In the above-described embodiment, the case where the insulating rope 30 is used has been described, but the present invention is not limited to this, and if it is used in a state where the power supply by the overhead transmission line 20 is stopped, it is used. A rope-shaped member having no insulating property may be used.

10 …… Ice and snow removal device, 11 …… Steel tower, 12 …… Insulator, 13 …… Ice and snow, 20 …… Fictitious power transmission line, 30 …… Insulated rope, 40 …… Tensioning part, 41 …… Winch , 42 …… Tension adjustment winch, 50 …… Insulator, 51 …… Insulator, 52 …… Generator, 60 …… Flying object.

Claims (4)

It is an icing and snow removing device that removes icing and snow adhering to overhead power transmission lines supported via multiple steel towers.
A rope-shaped member hung in a direction intersecting the longitudinal direction of the overhead power transmission line, and
A tension applying portion that applies a constant tension through one end of the rope-shaped member, and a tension applying portion.
Ice landing snow, which is attached to the other end of the rope-shaped member and is provided with a vibrating portion that applies vibration to the overhead power transmission line via the rope-shaped member in a state where the tension is applied. Removal device. A claim characterized in that the vibrating portion applies vibration to the overhead power transmission line by pulling the rope-shaped member with a predetermined pulling force and then releasing the pulling force on the rope-shaped member. The ice-cold snow removing device according to 1. The ice / snow removing device according to claim 1 or 2, wherein the rope-shaped member is an insulating rope. In hanging the rope-shaped member on the overhead power transmission line, an air vehicle having the one end or the other end of the rope-shaped member and flying in a direction intersecting the longitudinal direction of the overhead power transmission line is further provided. The ice-cold snow removing device according to any one of claims 1 to 3.

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