JP5801007B1 - Overhead wire traveling device self-propelled device - Google Patents

Abstract

[PROBLEMS] To provide a novel overhead-line traveling device self-propelled device that is simple, small, and lightweight and can be self-propelled by an electric drive so that an operator can carry it alone and connect it to a hoist. The main issue is to do. The present invention includes, for example, a roller unit 11 having one or two or more rollers 12 that are rotated by a driving force of an electric motor 1A, and is combined with a bracket 2 attached to an overhead wire travel device 2A to make the aerial. The overhead wire 1B can be brought into close contact with the roller 12 by being connected to the wire travel device 2A, suspended from the overhead wire 1B on the roller 12, and lifted up the roller unit 11 by the lifting means 14. The line travel device self-propelled device 1 can be exemplified. [Selection] Figure 1

Description

  The present invention belongs to the technical field of devices used for maintenance, inspection, repair, etc. of overhead lines such as power transmission lines. INDUSTRIAL APPLICABILITY The present invention allows a so-called air hoist (overhead wire travel device) used for overhead wire construction of a power transmission line or the like, maintenance / inspection work, etc. to be self-propelled in a state where an operator is on it. It relates to the device.

Transmission lines stretched around steel towers are damaged and corroded by natural disasters such as lightning, vibration caused by wind, or typhoons. Deterioration of damage and corrosion will lead to transmission line disconnection accidents. Therefore, transmission lines must be regularly inspected.
In manual maintenance and inspection, a so-called scorpion device is generally used. The hoist is a work tool that has traveling wheels on the upper part of a predetermined frame, and allows an operator to sit on the seat of the frame and travel along an overhead power transmission line or the like. During the work, the hoistor's wheels are suspended on an overhead power transmission line, etc., and maintenance inspections are performed while the operator is on board and moves.

  The most primitive method for moving the air hoist is to pull the power transmission line with the operator's traction force. However, for example, it is burdensome for the operator to move by pulling the power transmission line. Therefore, various devices that can mechanically move the hoistor have been considered (for example, see Patent Documents 1 and 2). The devices described in Patent Documents 1 and 2 are completely self-propelled.

  On the other hand, the device described in Patent Document 3 is not a self-propelled type, but relates to an assist device based on the technical idea of assisting human-powered drive by electric drive, and can be separated from the hoistor body and carried by an operator. Then, it is connected to a hoist and used.

Japanese Patent Laid-Open No. 9-252514 JP-A-5-153708 JP 2014-131385 A

The devices described in Patent Documents 1 and 2 are self-propelled, but are large and heavy, and are difficult for an operator to carry alone and install on a power transmission line.
On the other hand, the device described in Patent Document 3 is separable from the main body of the hoist, and is used by an operator alone and connected to the hoist. Therefore, it is relatively simple and small and light. However, the device described in Patent Document 3 basically relates to an assist device that assists human power drive by electric drive, and does not basically run by itself.
The present invention is a simple sprinter (overhead wire) that is simple, small and light, and can be self-propelled by an electric drive, with the operator carrying it alone and connecting it to the suspender. The main task is to provide a self-propelled device.

  As a result of intensive studies to solve the above problems, the present inventor has conceived a simple airborne self-propelled device capable of self-propelling with the power of an electric motor such as an electric driver main body. It came to complete.

Examples of the present invention include the following.
[1] A roller unit having one or two or more rollers that are rotated by the driving force of an electric motor is connected to the overhead wire travel device by combining with a bracket attached to the overhead wire travel device, and the roller is aerial. An overhead wire travel device self-propelled device, characterized in that an overhead wire can be brought into close contact with the roller by suspending a wire and lifting the roller unit with lifting means.

[2] The overhead wire travel device self-propelled device according to [1], in which the roller unit includes two rollers.
[3] The overhead wire travel device self-propelled device according to [1] or [2], wherein the electric motor is an electric driver main body.

[4] The bracket according to [1] above.

[5] An overhead wire travel device having the bracket according to [4].

Hereinafter, the present invention will be described in detail.
1. About the overhead traveling device self-propelled device (hereinafter referred to as “the present invention device”) according to the present invention.

1-1 Roller Unit The device of the present invention includes a roller unit having one or two or more rollers that are rotated by a driving force of an electric motor.
As the “electric motor”, even if an operator rides on the overhead wire travel device, the roller included in the roller unit of the present invention device is sufficiently rotated to allow the overhead wire travel device to self-travel along the overhead wire. Although it will not restrict | limit especially if it has the driving force (torque) which can be performed, For example, electric screwdriver main bodies, such as an electric drill driver, an impact driver, an electric drill, can be mentioned, for example. These electric screwdriver bodies are generally commercially available and simple and preferable, and an electric screwdriver body provided with a replaceable charger is more preferable. If it is an electric screwdriver main body equipped with a replaceable charger, one or more of the chargers are transported to the workplace together with the device of the present invention and mounted as a spare on the overhead wire travel device, thereby interrupting work due to running out of battery. It can be avoided.

In addition, some electric screwdriver bodies have a clutch function, and the torque or the number of rotations can be easily adjusted, so depending on the gradient of the overhead line or depending on the speed of low speed running, high speed running, etc. Can be adjusted accordingly. Those that can adjust the direction of rotation are also convenient.
The device of the present invention can also be called the device of the present invention including the electric motor.

  The roller unit included in the apparatus of the present invention has 1 or 2 or 1 to 4 rollers. Since having three or more rollers complicates the structure, it is appropriate to have one or two rollers, preferably two.

  The roller rotates in synchronization with the electric motor. In order to rotate the electric motor and the roller synchronously, for example, a method of directly connecting the roller to a connecting rod connecting the electric motor (especially when there is one roller), a rotating gear is fitted into the connecting rod, and the rotating gear In addition, a method of indirectly transmitting the rotation of the electric motor by connecting the roller and the rotating gear that rotates in synchronization with a chain or the like and interlocking with each other can be exemplified (especially when there are two or more rollers). In the latter case, the diameter ratio between the rotating gear on the connecting rod side and the rotating gear on the roller side can be adjusted as appropriate. Normally, if the ratio of the diameter of the rotating gear on the roller side to the diameter of the rotating gear on the connecting rod side (roller side / connecting rod side) is large, the roller can be rotated even with a relatively weak driving force (torque) and run over the overhead wire. The vessel can be run along the overhead line, but at a lower speed. Conversely, if the diameter ratio is small, a relatively strong driving force is required to rotate the roller and cause the overhead wire travel device to travel along the overhead wire, but the speed of the overhead wire travel device becomes high.

  The surface portion of the roller is preferably formed with a groove in order to improve adhesion with the overhead wire. The cross-sectional shape of the groove is preferably similar to the cross-sectional shape of the overhead wire, but generally includes, for example, a semicircular arc and a V-shape. The size of the groove can be adjusted to the thickness of the overhead line. The material of the surface portion of the roller is not particularly limited as long as it can secure adhesion to the overhead wire, friction, and the like. Specifically, for example, urethane resin and rubber may be mentioned. it can. Among these, urethane resin is preferable from the viewpoint of durability and the like.

  The cross-sectional shape of the connecting rod is not particularly limited as long as it can be connected to the electric motor to be used, but a polygon that can be strongly meshed is preferable to the circular shape. Examples of such polygons include triangles, quadrangles, pentagons, hexagons, and octagons. Among these, a triangle, a pentagon, a hexagon, etc. are suitable. When the electric motor is an electric screwdriver main body, a triangle and a hexagon are preferable, and a hexagon is more preferable from the viewpoints of the shape of the chuck (holding mouth), ease of biting of the chuck, and ease of tightening.

  Here, examples of the “overhead line” include a power transmission line and an overhead ground line. The device of the present invention is particularly preferably used for maintenance and inspection of power transmission lines. Hereinafter, “overhead lines” are also referred to as “overhead power transmission lines and the like”.

1-2 Bracket The device of the present invention is connected to the overhead wire travel device by combining with the bracket attached to the overhead wire travel device.

  The joining of the device of the present invention and the bracket is usually performed by fitting them together. Therefore, both have a structural part which can be fitted. Such fitting is preferably performed at two or more places, and it is preferable that the lifting means becomes effective by fitting, the roller unit can be lifted, and the overhead wire can be brought into close contact with the roller. Moreover, the structure where both may fit may be a structure which can be hold | suppressed with a suitable fastener (for example, screw) for safety | security so that it may not remove | deviate during work.

  It can also be said that the present invention device includes the bracket. The bracket is included in the present invention. Hereinafter, the part excluding the bracket is also referred to as the main body of the present invention.

  For example, the bracket may be an independent one that can be attached to and detached from a connecting piece that connects the wheels of the overhead wire travel device, or may be fixed to the connecting piece or the like and integrated with the overhead wire travel device. When the bracket is detachable from the overhead wire travel device, the bracket can have appropriate fasteners.

  Here, examples of the “overhead wire travel device” include a hoist used for maintenance and inspection of an overhead power transmission line or the like stretched around a steel tower. One having two wheels, one having four wheels, or one having more wheels may be used, and there is no particular limitation. Moreover, the thing for multi conductors, such as a thing for 2 conductors and 4 conductors, may be used for a single conductor.

1-3 Lifting means The lifting means lifts the roller unit, brings the roller provided in the roller unit into close contact with the overhead power transmission line, etc., and rotates the overhead roller along the overhead power transmission line by the rotation of the roller. It is intended to enable self-running. Usually, it becomes effective when the main body of the present invention and the bracket are combined.
The specific mechanism of the lifting means is not particularly limited as long as it has the function. For example, the lifting means 14 described in the drawings can be given. Although the details of the lifting means 14 described in the drawings will be described later, the lifting means 14 is simply fitted into the fitting portion 21 of the bracket 2 by the lifting means 14 and its support bar 16, and the lifting means 14 is supported by the support bar. The roller unit 11 is lifted with the fitting portion 15 serving as a fulcrum by being lowered along 16, and is in close contact with the power transmission line 1 </ b> B.

1-4 Material The basic material of the device of the present invention is usually stainless steel, iron, titanium, copper, etc., except for some members such as the surface portion of the roller, including the bracket. Among these, stainless steel is preferable from the viewpoints of avoiding corrosion due to rain and snow, simplicity, workability, cost, and the like.

2. Method of using the device of the present invention The device of the present invention can be used, for example, as follows.
An operator carries the apparatus according to the present invention together with an electric motor to an overhead wire traveling device suspended on an overhead power transmission line or the like for performing maintenance and inspection. When the electric motor is powered by a charger that can be separated from the main body, a spare charger can be carried as necessary.

  Next, at the work site, the worker himself joins the main body of the present invention with a bracket attached to the overhead wire travel device (usually coupled by fitting) and fixes the present invention device to the overhead wire travel device. . Thereafter, the overhead power transmission line or the like is suspended on the roller of the roller unit provided in the apparatus main body of the present invention, the roller unit is lifted by the lifting means, and the overhead power transmission line or the like is brought into close contact with the roller. Then, the roller is driven by operating an electric motor connected to the main body of the present invention, and the overhead wire travel device is automatically moved along the overhead power transmission line or the like while the operator is sitting on the seat of the overhead wire travel device. You can run.

  The driving force (torque) of the electric motor to be used may be appropriately adjusted depending on the grade of the overhead transmission line or the like. In general, the driving force of the electric motor is increased on an upward slope, and the electric motor is stopped or the driving force is decreased on a downward slope. Also, especially when the driving force of the electric motor to be used is weak and the overhead line traveling device does not self-propell well, especially on an upward slope, the operator may assist by pulling the power transmission line. Note that when an electric motor such as an electric driver is used, the electric motor also plays a role of braking on a downward slope, the speed can be suppressed, and the risk of an operator colliding with a steel tower or the like can be avoided.

  When the maintenance and inspection work is completed, the main unit of the present invention may be removed from the bracket attached to the overhead wire traveling device main unit and the main unit of the present invention, the electric motor, etc. it can.

The apparatus of the present invention can be used for overhead conductors for single conductors or overhead conductors for multiconductors such as two conductors and four conductors. When using this invention apparatus with the overhead wire travel device for multiconductors, this invention apparatus can be used 1 or 2 or more. If more than one is used, the overhead wire travel device can be made to run more smoothly.

The device of the present invention is lightweight, simple and compact. Therefore, according to the present invention, the device of the present invention can be easily transported and attached to an overhead line traveling device (scorporator) suspended on an overhead line such as a power transmission line by one worker. Then, for example, a commercially available electric motor such as an electric driver main body can be allowed to self-run along the overhead line while the operator is riding on the overhead line travel device (scorporator). Moreover, since an electric motor such as a commercially available electric screwdriver main body can be used, the device of the present invention can be manufactured at low cost.

It is a perspective view in the state where this invention device main part 1, electric motor 1A, and bracket 2 separated. 1 is a perspective view of a state in which an apparatus main body 1, an electric motor 1A, and a bracket 2 are combined. It is a top view in the state where this invention main part 1, electric motor 1A, and bracket 2 were united. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. 1 is a front view of a state in which the apparatus main body 1, an electric motor 1A, and a bracket 2 are combined. FIG. 3 is a right side view of the present invention apparatus main body 1, electric motor 1A, and bracket 2 in a combined state. It is a perspective view of the device of the present invention attached to the air hoist 2A. It is a use figure of the device of the present invention attached to the air hoist 2A.

Next, an embodiment for carrying out the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments described below.
FIG. 1 shows a state in which the main body 1 of the present invention, the electric motor 1A, and the bracket 2 are separated. These are combined and used as shown in FIG. By combining and uniting these, the device of the present invention and the air hoist 2A (overhead wire travel device) are connected.

  The apparatus of the present invention shown in the drawings has two rollers 12 in the roller unit 11 of the apparatus main body 1 of the present invention, and rotates synchronously via a roller-side rotating gear 18 that rotates in synchronization with the rollers 12 and an interlocking chain 19. The electric motor 1A is attached to the connecting rod 13 in which the connecting rod-side rotation gear 17 is fitted. When the electric motor 1A is driven, the connecting rod side rotation gear 17 is rotated, and the two rollers 12 are rotated by the roller side rotation gear 18 that rotates in synchronization with this via the interlocking chain 19. The electric motor 1A is an electric driver main body having a replaceable charger.

  The unit of the present invention apparatus main body 1 and the bracket 2 includes the fitting section 15 on the apparatus main body side, the fitting member 23 on the bracket side, the lifting means 14 on the apparatus body side of the present invention, and a support rod for supporting the same. 16 is fitted into the fitting portion 21 on the bracket side, and the lifting means 14 is turned and tightened. Thereby, the lifting means 14 becomes effective, and the roller unit 11 can be lifted with the fitting portion 15 serving as a fulcrum.

  In the drawing, the lifting means 14 is screwed into the support bar 16 and can be moved up and down along the support bar 16 by turning. Normally, when rotating clockwise, the roller unit 11 is lowered along the support rod 16 and structurally with the fitting portion 15 as a fulcrum. The roller 12 and the power transmission line 1B are in close contact with each other, whereas when rotating counterclockwise, The roller unit 11 rises along the support bar 16 and structurally, and the contact between the roller 12 and the power transmission line 1B becomes loose.

  The fitting portion 15 that becomes a fulcrum when lifting the roller unit 11 has a clasp such as a pin for safety in the drawings. The support bar 16 that supports the lifting means 14 can move back and forth in the direction perpendicular to the roller unit 11 or the power transmission line 1B. Thereby, the attachment / detachment with the fitting part 21 by the side of a bracket becomes smooth.

  After uniting the main body 1 of the present invention and the bracket 2 and connecting them to the air hoist 2 </ b> A, the operator suspends the power transmission line 1 </ b> B on the roller 12 of the roller unit 11. Then, the lifting means 14 is turned to lift the roller unit 11. Thereby, the power transmission line 1B is brought into close contact with the roller 12, and the rotation of the roller 12 allows the hoist 2A to self-propell along the power transmission line 1B while the operator is sitting on the seat. In self-running, the self-running speed can be adjusted by adjusting the torque of the electric motor 1A. On the down slope, the electric motor 1A can play a braking role in a stopped state.

The bracket 2 is fixed by a fastener 22 to a connecting piece that connects the two wheels 2B of the air hoist 2A. The bracket 2 can be detached from the connecting piece of the hoist 2A as necessary for maintenance and inspection of the hoist 2A.
FIG. 8 shows a portion where the apparatus main body 1 and the electric motor 1 </ b> A are attached to the hoist 2 </ b> A via the bracket 2.

The worker carries the device body 1 of the present invention and the electric motor 1A (in some cases, the charger of the electric motor) to the air hoist 2A suspended in advance on the power transmission line 1B, and attaches the bracket 2 as described above at the work place. The apparatus main body 1 etc. of the present invention and the hoist 2A are combined and used.
FIG. 9 shows a state in which the device of the present invention (electric motor) is driven in a state where the device main body 1 of the present invention and the electric motor 1A are attached to the air hoist 2A and an operator sits on the seat.

After the completion of the work, the operator can usually remove the apparatus main body 1 etc. of the present invention from the air hoist 2 </ b> A and carry the apparatus main body 1 etc.

One person can easily transport and install the device of the present invention to an overhead wire traveling device (scorporator) suspended on an overhead line such as an overhead power transmission line. Thus, the overhead line traveling device (scorporator) can be self-propelled along the overhead power transmission line or the like while the worker is on board. Therefore, the device of the present invention is useful for performing maintenance, inspection and repair of overhead lines such as power transmission lines.

DESCRIPTION OF SYMBOLS 1 Main body apparatus 11 Roller unit 12 Roller 13 Connecting rod 14 Lifting means 15 Fitting portion 16 Supporting rod 17 Connecting rod side rotating gear 18 Roller side rotating gear 19 Linkage chain 1A Electric motor 1B Power transmission line 2 Bracket 21 Fitting portion 22 Fastening Tool 23 Fitting member 2A Suspensioner 2B Pulley

Claims (2)

A roller unit having one or more rollers that rotate by the driving force of the electric screwdriver main body is connected to the overhead wire travel device by combining with a bracket mounted on the overhead wire travel device, and the overhead wire is connected to the roller. The overhead wire travel device self-propelled apparatus, wherein the overhead wire can be brought into close contact with the roller by lifting the roller unit by lifting means. The overhead wire travel device self-propelled device according to claim 1, wherein the roller unit includes two rollers.

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