JP6324167B2 - Hard snow ring removal device on electric wire - Google Patents

Description

  The present invention relates to a device for removing a difficult snow ring that removes a number of difficult snow rings attached to an electric wire while traveling on an overhead electric wire.

  Conventionally, as a device for removing a difficult snow ring, a movable housing with a running support roller that can move along an overhead electric wire and a part of the difficult snow ring are introduced as the movable housing moves. An operation rod having a concave portion to be operated, and a chain body that introduces another part of the hard-to-fall snow ring between the convex portions of the link chain so as to face the operation rod. As a fulcrum, what gives a breaking force to a difficult snow ring by the convex part of a chain body is proposed (refer to patent documents 1).

JP 2007-166845 A

In the conventional device for removing a difficult snow ring, even if the snap engagement of the hard snow ring is disengaged, the hard snow ring may be left on the electric wire depending on the position around the axis on the electric wire. There is a problem that the removal performance of the difficult snow ring varies depending on the traveling speed of the device.
An overhead electric wire may be provided with a damper for preventing twisting in the course of extending the wire. The conventional snow-removing ring removal device has a problem that it cannot travel over the damper mounting portion when traveling on the electric wire.
Therefore, the present invention does not cause variations in the performance of removing the difficult snow ring due to the arrangement of the difficult snow ring on the electric wire or the traveling speed of the apparatus, and even if a damper is installed in the middle of the wire drawing. An object of the present invention is to provide a device for removing a difficult-to-attach snow ring on an electric wire that can travel over this.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above-mentioned problem, the difficult snow ring removal device 1 of the present invention is driven by a main body 2 that can move along the overhead electric wire W, a motor 4 mounted on the main body 2, and the motor 4. And a pair of striking gears 5 arranged opposite to each other with the electric wire W interposed therebetween. The pair of striking gears 5 have a large number of striking blades 7 whose blade tips collide with the side surfaces of the hard snow ring 51 on the electric wire W when rotating, but do not contact the outer periphery of the electric wire W. It is provided so as to rotate in the same direction and vertically up and down with respect to the axis. The striking blades 7 of the pair of striking gears 5 are arranged so as to simultaneously collide with the opposite side surfaces in the axial direction of the hard snow ring 51 and apply a twisting stress to the hard snow ring 51. The snap engagement of the engaging portion 54 of the hard snow ring 51 is momentarily interrupted by the torsional stress caused by the impact of the hitting blade 7, and the hard snow ring 51 is detached from the electric wire W.

  Since the difficult snow ring removal device 1 of the present invention applies torsional stress to the hard snow ring by the striking blade that simultaneously collides with the opposite side surface in the axial direction of the hard snow ring, and snap engagement is momentarily interrupted. Regardless of the position of the hard snow ring on the electric wire and regardless of the traveling speed of the device, the hard snow ring can be reliably removed from the electric wire.

It is a front view of the difficult snow accretion ring removal apparatus which concerns on this invention. FIG. 2 is a side view of the difficult snow ring removing device of FIG. 1. It is a top view of the difficult snow accretion ring removal apparatus of FIG. It is a front view at the time of the damper passage of the difficult snow ring removing device of FIG. The hit | damage gearwheel in the hard snow ring removal apparatus of FIG. 1 is shown, (A) is a side view, (B) is a top view.

Embodiments of the present invention will be described with reference to the drawings.
In order to prevent the snow from adhering to the overhead electric wire W, a large number of difficult-to-attach snow rings 51 (FIG. 5) are attached to the outer periphery of the electric wire W at predetermined intervals in the extending direction. The difficult snow ring 51 is integrally formed of an elastic synthetic resin, and has a pair of semi-annular portions 53 connected to each other by a hinge 52 portion on one end side, and the engaging portions 54 on the other end side thereof. Is attached to the outer periphery of the electric wire W by snap engagement. A groove 55 is formed on the outer periphery of the semi-annular portion 53. Further, a twist preventing damper D shown in FIG.

  The hard snow ring removing device 1 is supported by a main body 2 that removes a hard snow ring 51 on the electric wire W while being moved along the electric wire W by the traveling roller 3, and can be lifted and lowered with respect to the main body 2. And a collecting member 9 for storing the difficult snow ring 51.

  The main body 2 includes a pair of motors 4 and a pair of striking gears 5 driven by the motors 4. The striking gear 5 is fixed to a rotating shaft 6 that vertically extends downward from the main body 2 on both sides of the electric wire W. The main body 2 is connected to the front of the suspension machine 41 in the traveling direction via the connecting arm 8 and travels on the electric wire W together with an operator who rides the suspension machine 41.

  The pair of striking gears 5 have a large number of striking blades 7. The striking blade 7 is set so that the blade tip collides with the side surface of the difficult snow ring 51 on the electric wire W when rotating, but does not contact the outer periphery of the electric wire W. The striking gear 5 is provided so as to rotate in the same direction with its axis of rotation directed vertically up and down with respect to the axis of the electric wire W.

  The striking blades 7 are arranged so as to collide almost simultaneously with the opposite side surfaces of the difficult snow ring 51 in the axial direction and apply torsional stress to the difficult snow ring 51. The snap engagement of the engaging portion 54 is momentarily interrupted by the torsional stress caused by the collision of the striking blade 7, and the hard snow ring 51 is flipped off from the electric wire W. When the difficult snow ring 51 has the annular groove 55 on its outer periphery, the striking blade 7 is configured to collide with the outer surface in the axial direction of the difficult snow ring 51 or the inner surface of the annular groove 55 almost simultaneously. .

  The main body 2 is provided with a collection member 9 that surrounds the gear 5 and collects the difficult snow ring 51 so that the hard snow ring 51 detached from the electric wire W does not scatter. The collection member 9 is supported to be able to be joined and separated in the vertical direction with respect to the main body 2 via the slide rail 10. The slide rail 10 is fixed in the vertical direction on the side surface of the main body 2 on the right side in the running direction (left side in FIG. 2). The main body 2 and the recovery member 9 are coupled by a pair of constant load springs 11 and 12. One constant load spring 11 on the left side in the running direction of the main body 2 (right side in FIG. 2) is configured to be able to be coupled to and detached from the main body 2 with a plunger pin 13 at the upper end. As shown in FIGS. 1 to 3, when the recovery member 9 is in the set position joined to the main body 2, the two are connected by a fastener 14. When the fasteners 14 are uncoupled, the recovery member 9 moves away from the main body 2 by its own weight. When one of the constant load springs 11 is separated from the main body 2 in a state where the recovery member 9 is separated from the main body 2, the left side in the running direction of the main body 2 (the right side in FIG. 2) is opened. After being placed on W, the recovery member 9 is pushed up, the constant load spring 11 is locked to the main body 2, and the fastener 14 is tightened and set. The collecting member 9 includes a lower roller 22 that contacts the electric wire W from below and a battery 23 that supplies electric power to the motor 4 so as to face the traveling roller 3 of the main body at the set position.

  The main body 2 includes a traveling roller 3 that can roll over the electric wire W over the damper D, and thereby travel on the electric wire W. The main body 2 is provided with a damper getting over means 15 for retreating the striking gear 5 from the damper D. The damper climbing means 15 includes an operation lever 16, a roller support arm 17, and a push-up roller 18.

  The operation lever 16 and the roller support arm 17 are composed of an integral member refracted in an L shape, and are provided in a pair on the left and right. The operation lever 16 and the roller support arm 17 extend from the base end portion at an angle of approximately 90 °, and are pivotally supported on the main body 2 by the pivot 19 at the base end portion. The pivot 19 is rotatably supported by the main body 2 so as to be orthogonal to the axis of the electric wire W above the electric wire W. The operation lever 16 extends upward from the proximal end portion, and the distal end portions are coupled by a handle 20. The roller support arm 17 extends forward from the base end portion of the operation lever 16 in the traveling direction of the main body 2, and pivotally supports the push-up roller 18 between the distal end portions.

  The operation lever 16 can be rotated between a travel position indicated by a solid line and a push-up position indicated by an imaginary line in FIG. When the operation lever 16 is in the traveling position, the push-up roller 18 is slightly above the electric wire W. As shown in FIG. 4, after the push-up roller 18 reaches the closest position of the damper D, the fastener 14 is released and the collection member 9 is pulled down from the main body 2, and then the plunger pin 21 is pulled out from the main body 2, and the handle 20 , The operation lever 16 is rotated to the pushed-up position, and the plunger pin 21 is locked to the main body 2 again at this position. By this operation, the main body 2 is pushed up onto the electric wire W with the push-up roller 18 as a fulcrum and the pivot 19 as an action point, and the striking gear 5 is retracted above the electric wire W. If the main body 2 is pushed forward in this state, the main body 2 can pass through the damper D without the impact gear 5 colliding with the damper D.

  The connecting arm 8 includes a joint portion 8a that can be bent and extended. As shown in FIG. 4, when the removal device 1 gets over the damper D, the connection arm 8 is refracted, so that an operator riding on the air riding device 41 can approach the removal device 1 and operate it.

  After the removal device 1 gets over the damper D, the main body 2 is returned to the set position by returning the operation lever 16 to the traveling position, the recovery member 9 is joined to the main body 2 and the fastener 14 is tightened. Next, the damper D is removed from the electric wire W, the connecting arm 8 is extended, and the suspension machine 41 is advanced again to continue the removal work of the difficult snow ring 51.

DESCRIPTION OF SYMBOLS 1 Hard snow ring removal apparatus 2 Main body 3 Traveling roller 4 Motor 5 Blowing gear 6 Rotating shaft 7 Blowing blade 8 Joint arm 8a Joint part 9 Recovery member 10 Slide rail 11 Constant load spring 12 Constant load spring 13 Plunger pin 14 Fastener 15 Damper overpassing means 16 Operation lever 17 Roller support arm 18 Push-up roller 19 Axis 20 Handle 21 Plunger pin 41 Suspension machine 51 Difficult snow ring 52 Hinge part 53 Semi-annular part 54 Engagement part 55 Groove

Claims (5)

A number of hard-to-snow rings are attached to the outer periphery by snap-engaging engagement portions on the other end side of the pair of semi-annular portions connected to each other by a hinge portion on one end side, and in the process of extending the wire A device for removing a hard-to-snow ring from an overhead electric wire on which a damper is mounted ,
A main body movable along the electric wire, a motor mounted on the main body, and a pair of striking gears driven by the motor and arranged to face each other with the electric wire interposed therebetween,
The pair of striking gears have a large number of striking blades that do not contact the outer periphery of the electric wire, although the blade tip collides with the side surface of the hard-to-snow ring on the electric wire when rotating, and the rotation axis thereof is Is provided to rotate in the same direction, up and down in the orthogonal direction,
The striking blades of the pair of striking gears are arranged so as to simultaneously impinge on the opposite side surfaces in the axial direction of the difficult snow ring to impart torsion stress to the hard snow ring,
The snap engagement of the engaging portion is momentarily interrupted by the torsional stress caused by the collision of the striking blade, and the hard snow ring is detached from the electric wire ,
Further, the main body includes a running roller that can roll over the damper on the electric wire, thereby being configured to be able to run on the electric wire,
The pair of striking gears are fixed to a rotating shaft extending downward from both sides of the electric wire from the main body,
The main body is provided with a damper overpass means for retreating the striking gear from the damper,
The damper crossing means includes an operation lever pivotally supported by a pivot rotatably supported by the main body so as to be orthogonal to the axis of the electric wire above the electric wire, and forward of the main body in the traveling direction from the operation lever. A roller support arm that extends, and a push-up roller that is pivotally supported by the roller support arm at a forward position in the traveling direction of the main body and can pass through the damper,
By rotating the operation lever immediately before the damper, the push-up roller is used as a fulcrum, the pivot is used as an action point, the main body is pushed up on the electric wire, and the striking gear is retracted above the electric wire. configured flame snow accretion ring removal device of the power transmission line, characterized in Rukoto. The difficult snow ring has an annular groove on the outer periphery;
The striking blades of the pair of striking gears are disposed so as to be able to collide simultaneously with the outer surface on the opposite side in the axial direction of the snow-preventing ring or the inner surface on the opposite side of the annular groove, respectively. The difficult snow ring removal device on the transmission line according to 1.   The main body is provided with a collecting member that surrounds the pair of striking gears and collects the hard snow ring so that the hard snow ring separated from the electric wire does not scatter. The difficult snow ring removal apparatus on a power transmission line according to claim 1 or 2. The device for removing a difficult snow ring on a power transmission line according to claim 3, wherein the recovery member is configured to be movable up and down relative to the main body, and is separable below the main body when the main body is pushed up onto the electric wire. . The main body further includes a connecting arm, and the connecting arm is configured to be connectable to a forward direction of a flying machine capable of traveling on the electric wire on which an operator rides,
5. The transmission line according to claim 1, wherein the main body is configured to be positioned in front of the suspension machine in the traveling direction and travel on the electric wire together with the suspension machine. 6. Snow ring removal device.

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