JPH01291614A - Driving structure of self-travelling device for wire extension and self-travelling staddler - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Application of the Invention The present invention relates to a drive structure for a self-propelled wire extending machine, a self-propelled aerial vehicle, etc. (hereinafter simply referred to as "drive structure J").

<Prior art> As a conventional drive structure, for example,
622, Japanese Patent Application No. 55-13831, etc. are known.

<Problems to be Solved by the Invention> By the way, self-propelled wire extension machines, self-propelled aerial vehicles, etc. are suspended from Metsusenger wires (also called "suspension wires" or "main wires"), and are self-mounted. The drive mechanism is used to deploy the hanging wheel for wire extension or to extend the wire extension lobe while running on the metsenger wire by itself, so (a) it is as light as possible, and ( b
It is desirable that the following requirements be met: ) the traction force is as large as possible, and (C) stable running conditions can be obtained regardless of the thickness of the mesh wire.

Looking at the prior art from this point of view, the patent application filed in 1986-13 uses a caterpillar type drive structure.
No. 831 may satisfy requirements (b) and (C), but its drive mechanism is relatively complex and large, so it is insufficient for (a).

In addition, although the one of Utility Application No. 114622/1987 is superior in (a) compared to the caterpillar type, (b)
and (C) is difficult to satisfy.

Therefore, in this invention, the above (a) to (C) are provided in a well-balanced manner.
) is intended to provide a drive structure that can satisfy the requirements.

<Means for solving the problem> Specifically, a pair of annular wheel pieces having inclined surfaces are combined to form a single annular wheel groove on a double-sided inclined surface, and the width of this wheel groove is freely adjustable. The present invention provides a drive structure having a drive wheel having a shape of 60 degrees, and a drive structure having a double-headed slope forming a wheel groove having an intersection angle of 60 degrees.

In other words, - The structure is relatively simple and lightweight, and the drive wheel type is adopted. - This drive wheel is made of a pair of wheel pieces with inclined surfaces, and a single annular wheel groove is formed by the inclined surfaces on both sides. At the same time, the width of this wheel groove can be adjusted freely, so that the contact point between the metsenger wire and the double-ended slope forming the wheel groove is always kept constant from the center of the drive wheel. The torque of the drive wheel and the self-propelled speed caused by the rotation of the drive wheel are constant, so that a stable running condition can be obtained at all times. The crossing angle is 60°, and the contact angle of the Metsenger wire is set to 6 to obtain the maximum frictional force.
The fact that it can be set to 0', etc., together make it possible to satisfy the requirements (a) to (C) above in a well-balanced manner.

<Example> Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.

This embodiment relates to a drive structure of a self-propelled wire extending machine 10, and this self-propelled wire extending machine 10 has a pair of left and right body parts 11.
．． 12, and a crotch part 13 is provided between the pair of left and right body parts 11 and 12, and above this crotch part 13, a pair of drive wheels 14 are arranged in tandem in the self-propelled direction (direction of arrow A). It is provided.

Each drive wheel 14 is formed by combining a pair of annular wheel pieces 17 having an inclined surface 16 so as to form a single annular wheel groove 18 at a double-ended inclined surface 16.16, and both wheel pieces 17. The width W of this wheel groove 18 can be adjusted by adjusting the interval between the wheels 17.

Further, the intersection angle α of the double-ended slope 16.16, that is, the angle α of the wheel groove 18, is 60°, and the contact angle β with the Messenger wire M, that is, the contact point between the Messenger wire M and the double-ended slope 16.16. The angle β between the normal line drawn from P to the center of the messenger wire M and a line segment orthogonal to the rotational center line S of the drive wheel 14 is 60° (FIG. 5).

In this way, the contact angle β was set to 60° because
As a result of repeated experiments, the maximum frictional force at this angle,
In other words, it was found that driving force (traction force) could be obtained. Moreover, the reason why the width W of the wheel groove 18 can be adjusted is that by adjusting the width W, the contact point P is always positioned at a constant distance from the rotation center line S of the drive wheel 14, This is to ensure that even if the diameter R of the drive wheel 14 is different, the torque of the drive wheel 14 and the free running speed brought about by the rotation of the drive wheel 14 are constant, so that a stable running state can always be obtained.

Further, as seen in FIG. 1, the right body section 11 mainly includes a drive motor 20 and a drive transmission mechanism 21, and the left body section 12 mainly includes a battery 22 as a drive power source and an operation switch. are distributed and installed so that the weight on the left and right sides is balanced.

Furthermore, as shown in FIGS. 1 to 3, each body part 1
A hanging ring 23 is provided at the bottom of each of the cables 1.12, and by passing an auxiliary row 124 between the pair of hanging rings 23 and 23, the electric wire E located below the self-propelled wire extending machine 10 is held, so to speak. The auxiliary rope 24 is used to connect the line extending lobe in order to prevent the self-propelled line extending machine 10 from derailing or falling. Additionally, as shown in Figures 1 and 2, a switch arm 25 for emergency stop is provided, and if there is an obstacle, the switch arm 25 will automatically stop when it comes into contact with the obstacle. .

Hereinafter, the usage condition of this self-propelled wire extending machine 10 will be explained.

First, it is suspended on the messenger wire M via the drive wheel 14.14. At that time, the width W of the wheel groove 18 is adjusted according to the thickness (diameter R) of the mesh wire M, and the contact point P is set at a predetermined position (this position can be easily identified by marking, for example). (Figure 5). In addition, the existing electric wire E below
If there is, the electric wire E is straddled at the crotch part 13 to avoid interference. Next, the auxiliary wire 24 is passed between the hanging rings 23 and 23, and a wire extension rope (not shown) is connected to the auxiliary wire 24. And start switch 2
6 is turned on to run on its own and perform line extension.

In this way, the drive structure used in this self-propelled wire extending machine 10 has the following features: - The drive wheel 14 has a relatively simple structure and is lightweight.
This drive wheel 14 is a pair of wheel pieces 17.1.
7 are combined so that the wheel groove 18 is formed at the double-ended slope 16.16, and at the same time, the width W of this wheel groove 18 is made adjustable, so that the contact point P
can be always positioned at a constant position from the rotation center line S of the drive wheel 14, and the free running speed brought about by the torque of the drive wheel 14 and the rotation of the drive wheel 14 is constant, so that a stable running condition can always be obtained.・Furthermore, the angle α of the wheel groove 18 can be set to 60°, and the contact angle β of the Metsenger wire M can be set to 60°, which allows the maximum frictional force to be obtained. Therefore, the above requirements (a) to (C) can be satisfied in a well-balanced manner.

Moreover, in this self-propelled wire extending machine 10, a crotch part 13 is provided,
If there is an existing electric wire E below, this electric wire E is straddled by the crotch part 13, so interference with the lower electric wire E can be avoided, and the electric wires are convergent, and the upper and lower electric wires are This means that it can be easily used even in conditions where there is not much space between roads.

Although this embodiment relates to a self-propelled wire extending machine 10, the drive structure used in this self-propelled wire extending machine 10 may be applied to a self-propelled aerial vehicle for wire extending or other similar devices. Of course you can use it.

<Effects of the Invention> As explained above, in the drive structure according to the present invention, a pair of annular wheel pieces each having an inclined surface are combined so as to form a single annular wheel groove with a double-ended inclined surface. It has a drive wheel whose width is adjustable,
In addition, since the intersecting angle of the double-headed slopes forming the wheel groove in this drive wheel is 60°, the above-mentioned requirements (a) to (C) can be satisfied in a well-balanced manner. It will be extremely useful for containers, self-propelled aerial vehicles, etc.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of a self-propelled wire drawing machine using the drive structure according to the present invention, Fig. 2 is a schematic plan view seen from the direction of the arrow ■ in Fig. 1, and Fig. 3 is a A schematic side view seen from the direction of the arrow ■ in Figure 1. Figure 4 is a schematic side view seen from the direction of the arrow ■ in Figure 1.
FIG. 5 is a schematic side view showing the relationship between the drive wheel and the messenger wire. 10-- Self-propelled wire extending machine 14-- Drive wheel 16-- Inclined surface 17-- Wheel piece 18-- Wheel groove α −・−・・Intersection angle Fig. 3 A Fig. 4

Claims (2)

[Claims] (1) A drive wheel has a pair of annular wheel pieces each having an inclined surface, which are combined to form a single annular wheel groove on both inclined surfaces, and the width of this wheel groove is adjustable. Drive structure for self-propelled line extension machines, self-propelled aerial vehicles, etc. (2) The drive structure for a self-propelled wire extending machine, a self-propelled aerial vehicle, etc. according to claim 1, wherein the intersection angle of both inclined surfaces forming the wheel groove is 60 degrees.