JPS5926756Y2 - Device for transmitting signals, power, etc. between rotating and non-rotating bodies - Google Patents

Description

[Detailed explanation of the invention] This invention is based on an optical cabtyre cable as a rotating body,
The present invention relates to a device for transferring signal tubes and power tubes between non-rotating bodies.

In a mechanical device that moves in a desired direction, a cabtyre cable with a length that sufficiently corresponds to the amount of movement of the device is used,
Power is supplied to the mechanical device and control signals are transmitted through the cable.

The above-mentioned cabtire cable is wound onto a cable reel for ease of handling, and is then rewound or unwound to a required length.

In the above, when the cable reel is a rotating body and the mechanical device is a non-rotating body, the cabtire cable of the rotating body and the lead wire of the mechanical device are generally electrically connected via a slip ring, etc. It is.

However, cabtire cables made of conductive wires, rubber, and plastic (7) insulation coatings have a considerable weight due to the conductive wires, and special consideration must be given to induction interference when transmitting control signals. Due to these problems, cabtyre cables with optical fiber interiors are attracting attention because of their light weight and non-inductive properties.

This optical cabtyre cable is more convenient than a normal cabtire cable in the above points, but since the main part is made of ultra-thin optical fiber, a slip ring is inserted between the rotating and non-rotating bodies. Even if it were possible to do so, it would not be possible to connect it as easily as with a conductive wire.

First, in the connection of optical fibers, where the first priority is to precisely align the optical axes, the core of the optical fiber is in micro units, making it difficult to connect even when the fiber is stationary. Under usage conditions that include dynamic factors during rotation, the difficulty of dust increases further, resulting in optical signal attenuation in the rotating parts,
Mode conversion of the optical signal and a decrease in optical energy are inevitable.
The durability of the optical fiber that runs through the rotating part is also a problem.

In view of the above-mentioned problems, the present invention has been developed to ensure that the optical cabtyre cable is lightweight and non-inductive, while also being able to satisfactorily transfer signals, power, etc. between rotating and non-rotating bodies. The configuration will be explained below with reference to illustrated embodiments.

In Fig. 1, 1 is a rail, 2 is a trolley that can run freely on the rail 1, 3 is a rotary body consisting of a cable drum disposed on the trolley 2, and 4 is an electric motor also disposed on the trolley 2. It is a non-rotating body consisting of equipment.

Electrical equipment as the non-rotating body 4 referred to in this monme refers to equipment that is partially or entirely composed of purely electrical components;
It also refers to mechanical devices that are operated or controlled by an electrical system, and also refers to non-rotating bodies 4, even if a part of them has rotating mechanical devices, electric devices, etc. Even if the object itself is arranged so as to be rotatable in a predetermined direction for the purpose of changing direction, such objects may also be referred to as non-rotating objects.

Reference numeral 5 denotes an optical cabtyre cable that is unwound around the circumferential surface of the rotating body 30, and the end of the unwound side of the cable 5 is connected to a power line 7 via an electro-optic converter 6 that converts electricity into light.
The wrapped end of the cable 5 is connected to a charging converter 8 that converts light into electricity, and the photoelectric converter 8 is attached to the rotating body 3.

9 is a slip ring interposed between the rotating body 3 and the non-rotating body 4, and includes a fixed contact 10 and a rotating contact 11.
The slip ring 9 has a rotating contact 11 connected to the photoelectric converter 8 through a conductive wire 12, and a fixed contact 10 connected to the non-rotating body 4 through a conductive wire 13. There is.

The specific structure of the optical cabtyre cable cable 5 used above is illustrated in FIG.

In the case of FIG.
Insulated wires 19 made of an electric conductor 17 and an insulating sheath 18 made of chloroprene or the like are twisted or longitudinally attached to each other, and around the outer periphery of these are an inner sheath 20 made of chloroprene or the like, a reinforcing canvas 21, and an outer sheath made of chloroprene or the like. 22 are coated in sequence.

On the other hand, in the case shown in the figure, several optical fibers 14 each having a reinforcing layer 23 made of nylon or the like are vertically attached to each other, and a buffer layer 24 made of silicon or the like and a soft protection pipe 25 are provided on the outer periphery of the optical fiber. On the outer periphery of the unit 16,
Insulated wires 19 similar to those described above are twisted together, and an outer sheath 22 is further provided around the outer periphery.

When the present invention uses an optical cabtyre cable 5 as shown in FIG.
One or more of the wires 9 are connected to the circuit 8 for power supply to the photoelectric converter 8 .

The present invention consisting of the embodiment described above sends a predetermined signal, electric power, etc. from the feeder line 7 leading to the power source to the non-rotating body 4, and at this time, the electricity is converted into light by the electro-optic converter 6. Furthermore, the photoelectric converter 8 converts light into electricity.

When using the non-rotating body 4, which is an electrical device, while moving the trolley 2 along the rail 1, the rotating body 3 is rotated to unwind or wind the optical cabtyre cable 5 as necessary. The slip ring 9 prevents the wire from twisting at this time.

In the illustrated embodiment, the rotating body 3 and the non-rotating body 4 are both mounted on the trolley 2, but if either one of the above is mounted on the trolley 2, Alternatively, the present invention is effective even when trolley 2 is not used.
In short, the present invention can be applied to various examples as long as signals, power, etc. are transferred between the rotating body 3 and the non-rotating body 4.

As mentioned above, in the present invention, the optical cabtyre cable 5 is made of goofle, which is a transmission medium for signals, electric power, etc., so that weight reduction and non-induction can be ensured. In between, a photoelectric converter 8 and a slip ring 9 are interposed at predetermined locations, which eliminates the technical difficulty in making dynamic optical connections and the various problems that arise from this, and achieves the intended purpose. can be a distant relative.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing one embodiment of the device of the present invention, and FIG. 3... Rotating body, 4... Non-rotating body, 5... Optical cabtire cable, 8... Photoelectric converter, 9... Slip ring, 10... Fixed contact, 11...・Rotating contact.

Claims (2)

[Scope of utility model registration request] (1) The rotating body has an optical cabtyre cable, and the non-rotating body is composed of electrical equipment. Between the rotating body and the non-rotating body, there is a photoelectric converter, a fixed contact, and a rotating contact. A slip ring is interposed between the optical fiber of the optical cabtire cable and the photoelectric converter, the photoelectric converter and a rotating contact of the slip ring are connected relative to each other, and a fixed contact of the slip ring is interposed. and the above-mentioned non-rotating body are connected to each other, and a transfer device receives signals, power, etc. between the rotating body and the non-rotating body. (2) The optical cabtyre cable has a conductive wire in addition to the optical fiber, and the conductive wire is connected to a photoelectric converter to signal a signal between a rotating body and a non-rotating body according to claim 1 of the utility model registration claim. , a delivery device for receiving electricity, etc.