JPH0739031A - Running device over overhead wire - Google Patents

Abstract

PURPOSE:To prevent a running device from overrunning in an inclined area by being endowed with a brake function without increasing the weight of a running machine body. CONSTITUTION:A brake part 10 is installed separately from a running wheel 4 a running machine body which runs over an overhead wire, and the brake part 10 is coupled to the running machine body by using an arm and a rope 7. The arm is attached to a frame 3 for the running machine body 1 so as to be freely rockable. A trace roller is attached to the free end side of the arm, and it runs over the overhead wire.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overhead line traveling device used for detecting damage to an overhead power transmission line and for other inspections.

[0002]

2. Description of the Related Art Overhead lines are subject to lightning strikes and other natural disasters and are regularly inspected after they have been laid. For this inspection, one that runs on an overhead line and has various inspection devices mounted on a traveling machine is used. FIG. 2 shows a schematic view of a conventional overhead traveling system. As shown in the figure, the traveling machine body 1
Is a frame 3 and traveling wheels 4 for traveling on the overhead line 2.
Is equipped with. The frame 3 has, for example, a flaw detector 5
A battery or the like (not shown) is mounted. The traveling wheels 4 are driven by a drive mechanism (not shown), and the traveling machine body 1 travels on the overhead line 2 in the direction of arrow 6. When the flaw detector 5 is operated while traveling on the overhead wire in the above-described state, a flaw on the surface of the overhead wire 2 or other damage is detected and notified to a ground staff. Thereby, the maintenance and inspection work of the overhead line 2 is carried out.

[0003]

By the way, the traveling machine main body 1 as described above is used not only on a flat ground but also on a sloping ground. In this case, the traveling machine body 1 may travel from a high position to a low position. However, for example, when running on an overhead line at an inclined portion of about 30 degrees,
About twice as much as traveling on a horizontal portion, for example, traveling at a speed of about 90 meters per minute, even if you try to stop by operating the electromagnetic brake installed on the way, there is a possibility that you will run over a long distance or lose the wheel. is there. On the other hand, if a brake device having a large braking force corresponding to a steep slope is attached to the traveling machine body 1, the traveling machine body 1 increases in weight and becomes inconvenient to carry. Also, if the weight becomes heavier, it consumes unnecessary energy for traveling in a flat place. Moreover, the work of lifting the heavy traveling machine body 1 to a high place such as a steel tower is not only easy, but also dangerous.

The present invention has been made in view of the above points. On an overhead line having a braking function capable of preventing speed increase and overrun during traveling on a sloped ground without increasing the weight of the traveling machine body. An object is to provide a traveling device.

[0005]

A traveling apparatus on an overhead line of the present invention is connected to a traveling machine main body which is self-propelled on an overhead line, and is connected to the traveling machine main body through a connecting device, and is drawn by the traveling machine main body. It is characterized in that it comprises a brake unit for applying a braking force when traveling on an overhead line.

In the overhead traveling system of the present invention, the connecting device is further provided with an arm swingably attached to the frame of the main body of the traveling machine and a free end side of the arm to trace the overhead line. It is characterized by comprising a trace roller and a rope which connects the free end side of the arm and the brake portion similarly.

[0007]

[Function] The brake unit is provided separately from the traveling wheels of the traveling machine body traveling on the overhead line, and the braking unit and the traveling machine body are connected using the arm or the rope. An arm is swingably attached to the frame of the traveling machine body. A trace roller is attached to the free end side of the arm and runs on an overhead line. The trace roller absorbs the force of the rope in an unnecessary direction to effectively apply the braking force.

[0008]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. FIG. 1 shows a perspective view of an embodiment of an overhead line traveling apparatus of the present invention. As shown in the figure, in this device, the traveling machine body 1
The brake unit 10 is connected to the rope via the rope 7. The brake section 10 is provided with a pair of guide rollers 11 and a large-diameter brake roller 12, which sandwiches the overhead wire 2 shown in FIG. In addition to this, the brake unit 10 includes a braking unit 13 and a steering wheel 14.
And a stopper 15 are provided. Stopper 15 is rope 7
Is the part that connects. The braking unit 13 is a well-known brake mechanism that uses a flywheel, a magnet, or the like (not shown), and acts to prevent the rotation of the brake roller 12 with a constant force. The handle 14 rotates in the direction of arrow 16,
This is for adjusting the braking force by moving the pair of guide rollers 11 up and down in the direction of arrow 17.

FIG. 3 is a perspective view showing another embodiment of the overhead traveling system of the present invention. The traveling machine body 1 and the brake unit 10 shown in the figure have substantially the same configurations as those described with reference to FIG. That is, the traveling machine main body 1 has the frame 3
Further, devices for detecting overhead line damage such as the traveling wheel 4 and the flaw detection device 5 are mounted. Three traveling wheels 4 are provided in front, behind and in the middle of the traveling machine body 1, respectively. The brake unit 10 has the same structure as that shown in FIG.

Here, in the apparatus of this embodiment, an arm 21 is provided so as to be swingable with respect to the frame 3 of the traveling machine body 1.
The traveling machine body 1 and the brake unit 10 are connected to each other by the retaining metal 23 attached to the tip of the arm 21 and the retaining metal 15 attached to one end of the rope 7 and the brake unit 10. A trace roller 22 is rotatably supported at the free end of the arm 21. In this state, the arm 21 can swing in the direction of arrow 29.

FIG. 4 shows a plan view of the arm 21 as described above. As shown in the figure, the arm 21 is composed of a left and right symmetrically bent metal pipe or the like, and the trace roller 22 is composed of a wheel having a hollow center so that it can easily travel on an overhead line. FIG. 5 shows a sectional view passing through the axis of the trace roller 22. As shown in the figure, the trace roller 22 includes a rotating ring 31 and a bearing 32.
It is rotatably supported using the axle 33 via
An arm 21 and a stopper plate 23 are fastened and fixed by nuts 35 and 36 on both sides of the axle 33. In this way, the rotary ring 31 is configured to be freely rotatable around the axle 33.

FIG. 6 shows a detailed explanatory view of one arm portion. (A) is a plan view, (b) is a side view of one end,
(C) is a perspective view of a bearing pin attached to the frame of the traveling machine main body, and (d) is a side view of the other end of the arm. As shown in this figure, the arm 21 is formed by attaching ends having a shape as shown in the figure to both ends of a pipe.
21C has a key-shaped hole 21C as shown in FIG.

Further, bearing pins 26 as shown in FIG. 6C are fixed to the left and right at the center of the side surface of the frame 3 of the traveling machine body 1 shown in FIG. The bearing pin 26 has a large-diameter head portion 26A and a small-diameter portion 26B, and is configured to fix the base portion 26C to the frame 3. One end of the above arm 2
1A is brought close to the portion of the bearing pin 26 shown in (c), and the large-diameter head portion 26A of this bearing pin 26 is fitted into the key-shaped hole 21C. Then, when the arm 21 is displaced in the longitudinal direction, the small diameter portion 26B is fitted into the key-shaped hole 21C, and the arm 21 can be swingably attached. The mounting method itself of such a configuration is a well-known configuration, and is not necessarily limited to this configuration.

On the other hand, the other end 21B of the arm 21 is provided with a square hole 21D as shown in FIG. The end of the axle 33 of the trace roller 22 shown in FIG. 5 is fitted into the square hole 21D. Therefore, the axle 33 is fastened and fixed to the arm 21 in a state where it does not rotate.

The overhead traveling system of the present invention having the above construction travels in the state shown in FIG. FIG. 7 shows an operation explanatory diagram of the apparatus of the present invention. As shown in (a) of this figure, in the device of the embodiment of FIG. 1, a brake unit 10 is connected to a traveling machine main body 1 traveling on an overhead line 2 via a rope 7 in the direction of an arrow 19 It is configured to drive.
As a result, the brake unit 10 blocks the overrun of the traveling machine body 1, and the traveling machine body 1 travels at an appropriate speed.
In this way, the traveling machine main body 1 can be made lighter in weight and easily lifted to a high place.

By the way, for example, when a large braking force is applied to a portion of the overhead wire 2 where the inclination is steep, the traveling machine body 1 is inclined and a part of the traveling wheel 4 is lifted as shown in FIG. 4 (b). There is also. In this case, the flaw detection device mounted on the traveling machine main body 1 does not correctly face the overhead line 2, so that damage detection or the like becomes impossible. Therefore, in the steep slope portion, as shown in FIG.
Devices such as those shown in are suitable.

In the apparatus shown in FIG. 4C, when the traveling machine body 1 travels on the overhead wire 2 in the direction of arrow 19, the trace roller 22 at the tip of the arm 21 traces on the overhead wire 2. And the brake unit 10 is connected via the rope 7. With this configuration, even when the braking force of the brake unit 10 is transmitted to the traveling machine main body 1 via the rope 7, this force is diverted by the trace roller 22 and the arm 21 in the traveling direction of the traveling machine main body 1. It That is, the traveling wheels 4 are not lifted by applying unnecessary force to the traveling machine body 1. Even if the rope 7 sways due to fluctuations in the braking force, or even if the inclination of the overhead line 2 changes drastically in the vicinity of a steel tower or the like, the force is absorbed by the swinging of the trace roller 22 and the arm 21 in the direction of arrow 29. Only a constant braking force is transmitted to the traveling machine body 1.

The present invention is not limited to the above embodiments. The arm 21 for connecting the traveling machine body 1 and the brake unit 10 as in the above-described embodiment can be easily attached to and detached from the frame 3 of the traveling machine body 1 because the traveling machine body 1 and other This is because the parts and the parts are lifted separately and can be easily connected on the overhead line. Therefore, for example, if the arm 21, the trace roller 22 and the like can be made extremely light and simple, the clasp 23 provided near the trace roller 22 and the rope 7 can be connected by a simple metal fitting or the like. , It does not matter even if this part can be easily attached and detached. Of course, the connection between the brake unit 10 and the rope 7 may be easily removable. Further, the configuration of the brake portion 10 may be changed to an appropriate configuration that can apply an appropriate braking force to the traveling machine body 1 via the rope 7.

Further, the frame 3 of the traveling machine main body 1 has a structure in which the bearing pin 26 is attached to only one side of the frame 3 and the arm 21 can be attached and detached. The braking device may be connected to the side of. It goes without saying that the shape and number of the tracing rollers may be arbitrarily selected as long as they can trace the overhead line stably.

[0020]

As described above, in the overhead traveling system according to claim 1 of the present invention, since the traveling machine main body and the brake unit are separately provided and connected by the rope or the like, the weight of the traveling machine main body is increased. It is possible to prevent speed increase and overrun when traveling on a slope. Further, in the apparatus according to claim 2, a traveling machine main body that is self-propelled on an overhead line and a brake unit that applies a constant braking force are connected by an arm and a rope that are swingably attached to a frame of the traveling machine main body. However, since the trace roller for tracing the overhead wire is provided at the free end of the arm, the braking force of the rope is always applied to the traveling machine body only in the desired direction. Therefore, there is no possibility that the traveling wheels of the traveling machine body will be lifted up or the traveling machine body will be derailed by the braking force even in a steeply inclined portion. Further, if these connecting portions can be easily attached to and detached from the main body of the traveling machine, the connecting work between the main body of the traveling machine and the brake part can be easily performed, and the safety of work at high places can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an overhead line traveling device of the present invention.

FIG. 2 is a side view of a main part of a conventional device.

FIG. 3 is a perspective view showing another embodiment of the overhead traveling system of the present invention.

FIG. 4 is a plan view of an arm portion in the device of the present invention.

FIG. 5 is a sectional view of a trace roller in the device of the present invention.

FIG. 6 is a detailed explanatory view of an arm portion in the device of the present invention, (a) is a plan view, (b) is a side view of one end of the arm, (c) is a perspective view of a bearing pin, and (d) is. It is a side view of the other end of the arm.

FIG. 7 is an operation explanatory diagram of the device of the present invention.

[Explanation of symbols]

 1 Traveling machine main body 3 Frame 4 Running wheel 7 Rope 10 Brake part 15 Clasp 21 Arm 22 Trace roller 23 Clasp

Claims (2)

[Claims] 1. A traveling machine main body that is self-propelled on an overhead line, and a brake unit that is connected to the traveling machine main body through a coupling device and that is applied to the traveling machine body to apply a braking force when traveling on the overhead line. An overhead line traveling device comprising: 2. A traveling machine main body which is self-propelled on an overhead line, and a brake unit which is connected to the traveling machine main body through a coupling device and which is applied to the traveling machine body to apply a braking force when traveling on the overhead line. The connecting device comprises an arm swingably attached to the frame of the traveling machine main body, a trace roller provided on the free end side of the arm to trace the overhead wire, and the arm of the arm in the same manner. An overhead line traveling device comprising a rope connecting a free end side and the brake part.