JP2012115064A - Suspension tool for wire inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension tool for a wire inspection device capable of stably setting a wire inspection device on an electric wire.SOLUTION: A suspension tool for a wire inspection device sets a wire inspection device 100 on an electric wire A, which inspects a status of the electric wire A sliding along the electric wire A by being suspended from the electric wire A. The suspension tool comprises: a rod body 1 for bridging between a steel tower 50 to which the suspension tool is fixed and the electric wire A which is an inspection target; and an oscillation piece 2 disposed at the end part 7 on the electric wire side of the rod body 1. A gripping part 23 for gripping the electric wire A is composed of the end part 7 on the electric wire side of the rod body 1 and the oscillation piece 2. The suspension tool fixes an end part 8 on the fixed part of the rod body 1 to the steel tower 50, and bridges between the electric wire A and the steel tower 50 by gripping the electric wire A by the gripping part 23. A wire inspection device 100 runs on the rod body from the steel tower 50 toward the electric wire A, thus the wire inspection device 100 is transferred to the electric wire A which is the target of inspection.

Description

  The present invention relates to a suspension for an electric wire inspection device in which an electric wire inspection device for inspecting the state of the electric wire is installed on the electric wire while sliding on an aerial wire (for example, a power transmission line).

  Electric cables installed overhead such as power transmission lines are subject to external damage and internal corrosion due to aging, so it is necessary to inspect them regularly. Conventionally, such inspection of power transmission lines has been carried out by people on the power transmission lines. However, the inspection work by humans is dangerous and the work efficiency is poor because it is necessary to temporarily stop power transmission. Under such circumstances, a self-propelled electric wire inspection device that inspects the state of the transmission line while traveling on the transmission line has been developed (for example, Patent Document 1). That is, the electric wire inspection device of Patent Document 1 has a traveling wheel that rides on an overhead electric wire and an electric wire inspection unit that detects an abnormality such as damage to the electric wire, and causes the traveling wheel to travel on the electric wire. .

  By the way, as a method of installing the electric wire inspection device as described above on the electric wire, as shown in FIG. 4 of Patent Document 1, for example, the electric wire inspection device is attached to the tip of an insulating rod made of FRP via a hanging rope. Hang it. And the other end part of an insulating rod is attached to the suitable height of a steel tower, and is supported. At this time, the electric wire inspection device suspended from the tip of the insulating rod is lifted so as to be higher than the electric wire position to be inspected by an appropriate height. After the traveling wheel of the electric wire inspection device is positioned so as to be directly above the electric wire to be inspected, the installation of the electric wire inspection device is completed when the traveling wheel is placed on the electric wire.

JP-A-10-191517

  As in Patent Document 1, a method of suspending an electric wire inspection device and installing it from above an electric wire to be inspected is intended for installation of an electric wire inspection device for a 77 kV class transmission line, for example. For this reason, the length required for the insulating rod was about 2 m. However, for example, when a 500 kV transmission line is to be inspected, the length required for the insulating rod is about 10 m, and it is practically impossible to install a wire inspection device using such a long insulating rod. It was.

  The subject of this invention is providing the suspension tool for electric wire inspection apparatuses which can install an electric wire inspection apparatus in an electric wire stably.

  The suspension for an electric wire inspection device of the present invention is a suspension for an electric wire inspection device in which an electric wire inspection device that checks the state of the electric wire while sliding on the electric wire is installed on the electric wire by being suspended on the electric wire, A rod-shaped body that bridges a steel tower that is a fixed part and an electric wire to be inspected, and a swing piece provided at the wire-side end of the rod-shaped body, the wire-side end of the rod-shaped body and the swing A grip part for gripping the electric wire, and fixing the fixed side end of the rod-like body to the steel tower, and gripping the electric wire by the grip part to bridge the electric wire and the steel tower, The electric wire inspection device travels on the rod-shaped body from the electric wire to the electric wire, and the electric wire inspection device transfers to the electric wire to be inspected.

  The suspension for an electric wire inspection apparatus of the present invention includes a rod-shaped body that bridges the steel tower that is a fixed part and the electric wire to be inspected, so the electric wire inspection apparatus can travel from the steel tower toward the electric wire. it can. In addition, the wire-side end of the rod-shaped body is provided with a gripping portion that grips the electric wire, and the fixed-side end is fixed to the steel tower, so both ends of the rod-shaped body are stably fixed, The electric wire inspection device can be transferred to the electric wire stably and reliably.

  The gripping portion may include a switching mechanism that is in a non-gripping state before the rod-shaped body is attached and is in a gripping state after the rod-shaped body is attached.

  The said electric wire side edge part can be equipped with the angle adjustment mechanism which can change an angle. Thereby, the suspension for electric wire inspection apparatuses of this invention can be attached irrespective of the running direction of an electric wire.

  According to the present invention, since the rod-shaped body is provided and the grip portion is provided, the wire inspection device can stably and reliably transfer to the wire, and the rod-shaped body can be transferred from the steel tower. If it exists, an electric wire inspection apparatus can be stably installed in an electric wire.

  If the gripping part is provided with a switching mechanism that is in a non-gripping state before mounting the rod-shaped body and is in a gripping state after the rod-shaped body is mounted, the rod-shaped body can be easily mounted. Can be improved.

  When the gripping portion includes an angle adjustment mechanism, the suspension for the wire inspection device according to the present invention can be attached regardless of the traveling direction of the wire, and therefore the position of the fixed side end of the rod-shaped body is set to various positions. It is possible to improve workability and mountability.

It is a side view of the suspension tool for electric wire inspection apparatuses of this invention. It is a top view which shows the state which suspended the suspension tool for electric wire inspection apparatuses of this invention between the steel tower and the electric wire. It is an enlarged side view which shows the holding state of the holding part of the suspension for electric wire inspection apparatuses of this invention. It is an enlarged side view which shows the non-gripping state of the holding part of the suspension for electric wire inspection apparatuses of this invention. It is a side view which shows the state which suspended the suspension tool for electric wire inspection apparatuses of this invention between the steel tower and the electric wire. It is a figure which shows the method in which an electric wire inspection apparatus transfers to an electric wire from the suspension for electric wire inspection apparatuses of this invention. It is a perspective view of the electric wire inspection apparatus installed in an electric wire with the suspension for electric wire inspection apparatuses of this invention.

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

  In FIG. 7, the state which has arrange | positioned the electric wire inspection apparatus 100 on the two electric wires A in the suspension apparatus for electric wire inspection apparatuses of this invention is shown. The electric wire inspection device 100 mainly includes a sliding portion 10 that slides on the electric wire A while inspecting two electric wires A, and a gravity center adjusting portion 30. In the following description, the vertical direction is referred to as the vertical direction.

  The sliding part 10 includes a front rotary shaft 11a extending in the width direction, a rear rotary shaft 11b, and a pair of front rotary bodies (pulleys) 12a1, 12a2, attached to each of the rotary shafts 11a, 11b. And a pair of rear rotating bodies (pulleys) 12b1 and 12b2 and a connecting arm 14 for connecting the two rotating shafts 11a and 11b. Pulleys 12 a 1, 12 a 2, 12 b 1, 12 b 2 are rotatably attached to the rotating shafts 11 a, 11 b, and the rotating shafts 11 a, 11 b are attached to both ends of the connecting arm 14 via the connecting shaft 5. The sliding portion 10 is provided with a first checking portion (not shown) for checking the state of the electric wire A. The first inspection unit is for inspecting the state of the electric wire with a camera, for example, and the photographing data is recorded in a recording unit provided in the battery box 34. The rotating shafts 11a and 11b have motor portions at their ends. By rotating and driving a motor (not shown) built in the motor portion 3, the rotating shafts 11a and 11b can be rotated. it can. A connecting shaft 5 extending downward is connected to each of the rotating shafts 11 a and 11 b, and a motor (not shown) that rotates the rotating shafts 11 a and 11 b around the connecting shaft 5 is provided inside the connecting shaft 5. It has been.

  As shown in FIG. 7, the center-of-gravity adjustment unit 30 is provided at the lower end portion of the base shaft 27 attached to the connection arm 14, and includes a first arm 31, a second arm 32, and a battery box 34. One end of the first arm 31 is attached to the lower end of the base shaft 27, and the other end of the first arm 31 is attached to the end of the second arm 32 via the connecting shaft 33. The battery box 34 is attached to the second arm 32. A motor (not shown) that rotates the first arm 31 around the base shaft 27 is provided inside the base shaft 27, and the second arm 32 is connected to the first arm 31 inside the connection shaft 33. A motor (not shown) that rotates around the shaft 33 is provided. The battery box 34 includes a battery that supplies power to each motor and the inspection unit, and a recording unit that records the image of the electric wire photographed by the inspection unit and the curvature data of the outer peripheral surface. By rotating the first arm 31 and the second arm 32 of the center-of-gravity adjustment unit 30 to change the position of the battery box, the center of gravity of the wire inspection device 100 can be adjusted, and the wire inspection device 100 avoids obstacles. While moving forward.

  As shown in FIG. 1, the suspension device for an electric wire inspection device according to the present invention includes a long rod-shaped body 1 and a swing piece 2 provided at one end of the rod-shaped body 1.

  The rod-shaped body 1 includes a first part 3 constituting a wire-side end 7 corresponding to the wire side in a state of being bridged between a steel tower 50 (see FIG. 2) and the electric wire A to be inspected, and a steel tower. It consists of a second part 4 constituting the fixed side end 8 corresponding to the side, and a third part 6 interposed between the first part 3 and the second part 4. The first part 3 is made of, for example, conductive rubber, the second part 4 is made of, for example, FRP, and the third part 6 is made of, for example, steel.

  The first part 3 and the third part 6 are connected via a connecting member 9. As shown in FIG. 2, the connecting member 9 includes a support member 9a provided on the first part side, a support member 9b provided on the second part side, and pins inserted into the support members 9a and 9b from above and below. It is comprised with the member 13. FIG. Thereby, the first part 3 and the third part 6 are pivotally supported by the pin member 13, and the first part 3 can swing around the pin member 13 with respect to the third part 6. Become. Thus, the connecting member 9 and the pin member 13 constitute an angle adjusting mechanism 15 capable of changing the angle between the first part 3 and the third part 6. The second part 4 and the third part 6 are provided with a hole (not shown) on one side and are detachably connected to the hole by a concave-convex fitting structure in which the other is fitted. Thus, the 1st part 3, the 2nd part 4, and the 3rd part 6 become a structure which can be divided | segmented, respectively.

  As shown in FIG. 1, a rising piece 17 that rises in a direction orthogonal to the first part 3 is provided at the tip of the first part 3, and the second part 4 is provided at the intermediate part of the second part 4. A rising piece 26 is provided that rises in a direction perpendicular to the vertical direction. A rope 21 extending from the rising piece 17 through the connecting member 9 to the fixed side end 8 is fixed. A undulation rope 28 is attached to each of the connecting member 9 and the rising piece 26, and these undulation ropes 28 are fixed to a winch 29 (see FIG. 5) capable of feeding and winding the undulation rope 28. Yes. The 2nd part 4 is provided with the fixing | fixed part 25 (refer FIG. 5) for fixing the edge part to a steel tower.

  The swing piece 2 is provided at the wire-side end portion 7 of the rod-shaped body 1, and one end portion is attached to the substantially distal end of the rod-shaped body 1 so as to be swingable. As shown in FIG. 3, the swing piece 2 is provided with a fitting recess 16 into which the electric wire A is fitted. The swing piece 2 and the electric wire side end portion 7 constitute a grip portion 23 for gripping the electric wire A. That is, the base end side of the swing piece 2 is connected to the first swing shaft 18 via the first fulcrum 36, and the first swing shaft 18 is connected to the second fulcrum 37. The second rocking shaft 19 and the third rocking shaft 20 are connected to each other. The first swing shaft 18 is connected to the rising piece 17 via a coiled spring 22, and the third swing shaft 20 is pivotally connected to the rising piece 17 via a third fulcrum 38. Yes. An insulating rope 21 is attached to the distal end of the second swing shaft 19, and the rope 21 is fixed to the fixed end of the rod-like body 1 via the rising piece 17 and the connecting member 9 as described above. It extends to the part 8.

  The first to third swing shafts 18 to 20 and the rope 21 constitute a switching mechanism 24 that switches between a gripping state and a non-holding state of the electric wire A. That is, when the rope 21 is pulled from the steel tower side, the rope 21 is pulled from the state shown in FIG. 3 in the direction of arrow A, and the tip of the second swing shaft 19 is lifted, whereby the tip of the third swing shaft 20 is lifted. The portion (second fulcrum 37) is lifted upward about the third fulcrum 38, and the first swinging shaft 18 resists the elastic force of the coiled spring 22 and is a steel tower centered on the second fulcrum 37. Swing to the side. As a result, the first fulcrum 36 moves toward the tower as shown in FIG. 4, and the oscillating piece 2 oscillates around the first fulcrum 36 in the direction away from the electric wire A as indicated by an arrow B.

  When the tension state of the rope 21 is released, the rope 21 is pulled in the direction of the arrow D from the state shown in FIG. 4, and the first swing shaft 18 is turned around the second fulcrum 37 by the restoring force of the coil spring 22. Swings to the tower side. As a result, the swing piece 2 swings in the direction approaching the electric wire A around the first fulcrum 36 as indicated by the arrow C, and can return to the gripping state as shown in FIG.

  Next, a method for suspending the wire inspection device suspension of the present invention on the wire A and installing the wire inspection device 100 on the wire A will be described. First, the angle of the electric wire side end 7 is adjusted by the angle adjusting mechanism 15. Then, the fixed-side end portion 8 of the rod-shaped body 1 is fixed to a part of the steel tower 50 via the fixing portion 25 so that the electric wire-side end portion 7 of the rod-shaped body 1 is directed upward. Thereafter, the hoisting rope 28 is fed out by operating the winch 29, the rod-shaped body 1 is brought down as shown by an arrow E in FIG. 5, and the first portion 3 covers the upper side of the electric wire A so that the rod-shaped body 1 The electric wire side end 7 is brought into contact with the upper portion of the electric wire A to be inspected. At this time, as shown in FIG. 2, the first portion 3 (the wire-side end portion 7) has an angle with the second portion 4 and the third portion 6 in plan view.

  Next, after pulling the rope 21 to bring the swinging piece 2 into a non-gripping state as shown in FIG. 4, the tension state of the rope 21 is released so that the electric wire A fits into the fitting recess 16. As shown in FIG. 3, the electric wire A is held by the electric wire side end 7 and the swing piece 2. Thereby, the steel tower 50 and the electric wire A can be bridged by the rod-shaped body 1, and the electric wire inspection apparatus 100 can travel the second part 4 and the third part 6 of the rod-shaped body 1.

  Thereafter, one pulley 12a1 at the front and one pulley 12b1 at the rear of the wire inspection device are engaged with the rod-shaped body 1. And as shown by the arrow F of FIG. 5, the electric wire inspection apparatus 100 is made to run on the rod-shaped body from the steel tower 50 toward the electric wire A. At this time, the electric wire inspection apparatus 100 can travel while avoiding obstacles such as the rising piece 26 and the connecting member 9. To avoid the obstacle, the first arm 31 and the second arm 32 of the center-of-gravity adjustment unit 30 are rotated to change the position of the battery box 34, thereby adjusting the position of the center of gravity of the wire inspection device 100 and avoiding the obstacle. While moving forward. Specifically, when the wire inspection device 100 comes in front of an obstacle (for example, the rising piece 26), the first arm 31 and the second arm 32 are rotated to place the battery box 34 on the rear side of the wire inspection device 100. To arrange. As a result, the center of gravity of the wire inspection device 100 is biased rearward, the front rotating shaft 11a is lifted, and the front pulley 12a1 is separated from the rod-shaped body 1. In this state, the electric wire inspection device 100 is caused to travel forward. When the front pulleys 12 a 1 and 12 a 2 exceed the rising piece 26, the first arm 31 and the second arm 32 are rotated to place the battery box 34 on the front side of the wire inspection device 100. Thereby, the gravity center of the electric wire inspection apparatus 100 is biased forward, the rear rotating shaft 11b is lifted, and the rear pulley 12b1 is separated from the rod-shaped body 1. If the electric wire inspection apparatus 100 is caused to travel forward in this state, the rising piece 26 can be avoided.

  When the electric wire inspection device 100 reaches the connecting member 9 and reaches the vicinity of the electric wire A as shown in FIG. 6A, the electric wire inspection device 100 avoids the connecting member 9 and changes the electric wire A to be inspected. Perform transfer work. In FIG. 6, the connecting member 9 is omitted. That is, as shown in FIG. 6B, the battery box 34 is arranged on the rear side of the wire inspection device 100 so that the center of gravity of the wire inspection device 100 is biased rearward and the front rotating shaft 11a is lifted. The front pulley 12a1 is separated from the rod-shaped body 1. At this time, the front pulley 12a2 not engaged with the rod-like body 1 is also lifted. Then, as shown in FIG. 6C, the front rotary shaft 11a is swung to the electric wire A side around the front connecting shaft 5, and the direction of the pair of front pulleys 12a1 and 12a2 is changed to the pair of electric wires. The direction is along the direction of A. Next, as shown in FIG. 6 (d), the rear rotating shaft 11b is caused to travel and approach the electric wire side, and then the battery box 34 is placed at the center of the electric wire inspection device 100 as shown in FIG. 6 (e). The center of gravity of the electric wire inspection apparatus 100 is positioned so as to be arranged. Thereby, the front rotating shaft 11a is lowered, and the pair of front pulleys 12a1 and 12a2 are engaged with the electric wire A, respectively.

  Next, the rear pulley 12b is transferred from the rod-shaped body 1 to the electric wire A in the same manner as the front pulley 12a. That is, as shown in FIG. 6 (f), the battery box 34 is arranged on the front side of the wire inspection device 100, the center of gravity of the wire inspection device 100 is biased forward, and the rear rotating shaft 11b is lifted. The rear pulley 12b1 is separated from the rod-shaped body 1. At this time, the rear pulley 12b2 not engaged with the rod-like body 1 is also lifted. Then, as shown in FIG. 6 (g), the rear rotating shaft 11b is swung to the electric wire A side around the rear connecting shaft 5, and the direction of the rear pair of pulleys 12b1 and 12b2 is set to the pair of electric wires. The direction is along the direction of A. Next, as shown in FIG. 6 (h), the battery box 34 is arranged at the center of the wire inspection device 100 so that the center of gravity of the wire inspection device 100 is located at the center, and the rear rotating shaft 11 is lowered. The pair of rear pulleys 12b1 and 12b2 are engaged with the electric wire A, respectively. In this way, the electric wire inspection apparatus 100 transfers from the rod-like body 1 to the electric wire A to be inspected.

  Since the present invention includes the rod-like body 1 that bridges the steel tower 50 that is a fixed part and the electric wire A to be inspected, the electric wire inspection device 100 can travel from the steel tower 50 toward the electric wire A. . Moreover, since the wire-side end 7 of the rod-shaped body 1 is provided with a gripping portion 23 for gripping the electric wire A, and the fixed-side end 8 is fixed to the steel tower 50, both ends of the rod-shaped body 1 are stably fixed. As a result, the electric wire inspection apparatus 100 can be transferred to the electric wire A stably and reliably. Thereby, if the rod-shaped body 1 is the length which can be spanned from the steel tower 50, the electric wire inspection apparatus 100 can be stably installed in an electric wire.

  Since the gripping portion 23 is provided with a switching mechanism 24 that is brought into a non-gripping state before the rod-like body 1 is attached and is brought into a gripping state after the rod-like body 1 is attached, the attachment work of the rod-like body 1 is facilitated.・ Mountability can be improved.

  Since the wire side end portion 7 includes the angle adjustment mechanism 15 capable of changing the angle, the wire inspection device suspension of the present invention can be attached regardless of the traveling direction of the wire A, and the rod-shaped body. The position of the one fixed-side end portion 8 can be set to various positions, and workability and mounting properties can be improved.

  The present invention is not limited to the above embodiment. For example, although the case where this invention is applied to the electric wire inspection apparatus 100 which inspects two conductors is shown in said embodiment, the number of electric wires is not specifically limited, The electric wire inspection apparatus 100 which inspects a single conductor and four conductors. The present invention may be applied to.

DESCRIPTION OF SYMBOLS 1 Bar-shaped body 2 Oscillating piece 7 Electric wire side edge part 8 Fixed side edge part 15 Angle adjustment mechanism 23 Grasp part 24 Switching mechanism 50 Tower A Electric wire 100 Electric wire inspection apparatus

Claims (3)

A suspension for a wire inspection device that installs on a wire a wire inspection device that checks the state of the wire while sliding on the wire by being suspended on the wire,
A rod-shaped body that bridges a steel tower that is a fixed part and an electric wire to be inspected, and a swing piece provided at the wire-side end of the rod-shaped body, the wire-side end of the rod-shaped body and the swing A grip portion for gripping the electric wire is configured with a piece,
The fixed side end of the rod-shaped body is fixed to a steel tower, the electric wire is gripped by the gripping portion, the electric wire and the steel tower are bridged, and the electric wire inspection device runs on the rod-shaped body from the steel tower toward the electric wire. Then, the wire inspection device is to be transferred to the electric wire to be inspected.   The suspension device for an electric wire inspection apparatus according to claim 1, wherein the gripping portion includes a switching mechanism that is brought into a non-gripping state before the rod-shaped body is attached and is brought into a gripping state after the rod-like body is attached.   The suspension device for an electric wire inspection device according to claim 1 or 2, wherein the electric wire side end portion of the rod-shaped body includes an angle adjustment mechanism capable of changing an angle.

Images