JPH022027Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a remote control moving device installed in a limited location, such as inside a nuclear reactor containment vessel.

[Technical background of the invention]

For example, inside a reactor containment vessel, as shown in the perspective view in Fig. 1, mobile equipment 1 uses electricity to run on the floor and automatically inspect the inside of the vessel.
and a main cable 2, one end of which is connected to the mobile device 1, and the other end connected to a power source, control equipment, information communication equipment, etc. installed in a command room or the like outside the container.
, a rail 3 that is supported by the side wall inside the container and has the main cable 2 housed inside; and a rail 3 that runs on the rail 3 to tow the main cable 2 housed inside the rail 3; Pay out the required length from the inside of the rail 3, or
A towing vehicle 4 is used to feed the main cable 2 to the required length inside the rail 3, and one end of the main cable 2 is connected to a necessary line in the main cable 2 via the moving equipment 1, and the other end is connected to a towing vehicle 4 for feeding the main cable 2 into the inside of the rail 3 to the required length. A sub-cable 5 connected to the car 4 is provided.

The rail 3 has horizontal portions 3a on both sides of the upper end,
It has a rectangular cross section with a gap through which the main cable 2 can pass between the two horizontal parts 3a. Inside the rail 3, there are vertical rollers 3b for smoothly towing the main cable 2.
Horizontal rollers 3c are provided at predetermined intervals. The towing vehicle 4 includes a main body 4a, and the main body 4a has two horizontal portions 3a at the upper end of the rail 3.
Support rollers 4b are attached so as to come into contact with both sides of the lower end surface.
The towing vehicle 4 is mounted movably on the rail 3 by b. A traveling motor 4c is fixed on the main body 4a, and a pulley (not shown) is attached to the shaft of the motor 4c via a reduction mechanism (not shown), and a pulley (not shown) is attached to one side of the rail 3 with a predetermined pressure. A drive roller 4d is attached to the main body 4a so as to be in contact with the main body 4a, and a pulley 4e fixed to the drive roller 4d;
A belt 4f is passed around a pulley (not shown) attached to the motor 4c, and thus the motor 4
The drive roller 4d is rotated by the operation of c, and the towing vehicle 4 travels on the rail 3.

The main cable 2 is fed out onto the main body 4a,
Alternatively, the motor 4g for feeding is fixed, and the support plate 4h is fixed, and the through hole 4i for raising the main cable 2 inside the rail 3 and taking it out above the main body 4a is close to the support plate 4h. A pair of presser rolls 4j are attached to the support plate 4h to sandwich the main cable 2 taken out upward from the through hole 4i with a constant pressure, and one of the presser rolls 4j is connected to the motor 4g. The presser roll 4j is connected to the shaft via a speed reduction mechanism (not shown), and the presser roll 4j is rotated by the operation of the motor 4g.
It is paid out from inside the rail 3 or fed into the inside of the rail 3 via j.

4l is a wire storage mechanism for storing the sub-cable 5, and this wire storage mechanism 4l includes a basket 4'l fixed to the main body 4a and a drum 4''l with a slip ring attached to the basket 4'l. The drum 4''l always winds up part of the sub-cable 5 in a state where a rotational force is applied by a spring or the like in the winding direction, and the other end of the sub-cable 5 is Through the slip ring of drum 4″l, 2
It is connected to two motors 4c and 4g. The sub-cable 5 unwound from the drum 4''l is sandwiched between a pair of presser rolls 4j attached to a support plate 4h, and is run parallel to the main cable 2 between the towing vehicle 4 and the mobile device 1. are doing.
Therefore, the sub cable 5 is moved by the guide roller 4k according to the feeding or feeding of the main cable 2.
It is then unwound from the drum 4''l or rewound onto the drum 4''l via the presser roll 4j.

Since the towing vehicle 4 is configured as described above, the towing vehicle 4 can be driven to tow the main cable 2 as the mobile device 1 is moved, and the main cable 2 and the sub-cable 5 can be transported in the required amount. By feeding out, the moving device 1 can be moved away from the rail 3 in a direction perpendicular to the rail 3 to expand its working range, and when such expanding work is completed, it can be moved to a position suitable for working within the normal range, for example. By doing so, the main cable 2 and sub cable 5 become slack more than necessary, and the movable equipment 1 may be moved due to the main cable 2 and sub cable 5 being caught on a protruding part in the reactor containment vessel. It is possible to avoid the problem of interfering with

[Problems with background technology]

However, as mentioned above, main cable 2
and the sub-cable 5 are independent from each other and simply run parallel to each other between the mobile device 1 and the towing vehicle 4, so they tend to come apart, and as the mobile device 1 moves, One of these cables (especially the sub-cable 5) is likely to get caught on a protruding portion inside the reactor containment vessel. Also,
Since the two cables 2 and 5 with different diameters are sandwiched between the pair of presser rolls 4j, one of the cables easily slips on the presser roll 4j, and the two cables 2 ，
It is difficult to make the amount of feeding or feeding of 5 the same. Therefore, the lengths of the two cables 2 and 5 between the mobile device 1 and the towing vehicle 4 end up being different, which tends to make the working range of the mobile device 1 inaccurate, and causes the problem of getting caught in the same way as above. is also likely to occur. Furthermore, since a mechanism 4l for storing the sub-cables 5 is required, the structure of the towing vehicle 4 becomes complicated and large.

[Purpose of invention]

The present invention was developed based on the above-mentioned circumstances, and specifically aims to provide a remote control moving device that eliminates the danger of sub-cables getting caught and allows moving devices to move without any trouble.

[Summary of the idea]

The present invention includes a mobile device, a main cable that is connected to the mobile device and applies control signals, driving power, etc. to the mobile device, a rail that houses the main cable, and a main cable that is connected to the mobile device and applies control signals, drive power, etc. A towing vehicle that feeds out and retracts the main cable as it moves; and a towing vehicle that is arranged like a coil spring to surround the main cable and connects one end to the moving device and the other end to the towing vehicle, and transmits control signals and signals to the towing vehicle. The remote control moving device is characterized by comprising a sub-cable that distributes driving power.

[Example of idea]

FIG. 2 is a perspective view of an embodiment of the present invention, and the same parts as in FIG. 1 are designated by the same reference numerals. As shown in FIG. 2, the towing vehicle 4' according to the present invention is
The support member 6 is fixed to the support plate 4h and has a through hole through which the main cable 2 passes. The main cable 2 that rises from the inside of the rail 3 and is sandwiched between a pair of presser rolls 4j is supplied to the moving device 1 through the through hole of the support member 6. The sub-cable 5' has an insulating layer, a sheath, etc. made of an elastic material such as rubber or plastic, and is preformed into a coil spring shape so that it can be expanded and contracted. One end of the sub-cable 5' is fixed to the support member 6 on the towing vehicle 4' and connected to the motors 4c, 4g, and the other end is fixed to the mobile device 1, where the necessary connections are made. is being done. The main cable 2 is disposed to penetrate the coiled interior of the sub-cable 5'.

Therefore, the sub cable 5' is integrated with the main cable 2 and expands and contracts in the length direction of the main cable 2. Therefore, in response to the feeding or feeding of the main cable 2, the sub-cable 5' expands and contracts along the length direction of the main cable 2 without separating from the main cable 2. With the configuration and operation of the present invention described above, as the mobile equipment moves, the towing vehicle can be driven to tow the main cable, and by letting out the necessary amount of the main cable and sub cable, for example, , the moving equipment can be moved away from the rail in a direction perpendicular to the rail to expand its working range. Also, at the end of such expansion work, for example, the main cables and sub-cables may be retracted to suit work within the normal range, thereby causing the main cables and sub-cables to become unnecessarily sagging, which may cause them to fall into the reactor. It is possible to avoid the problem of getting caught on a protruding part or the like in the containment container and hindering the movement of the mobile device.

[Effect of idea]

As described above, according to the present invention, since the sub-cable is integrated with the main cable, there is no risk that the sub-cable will get caught on a protruding part within the container when moving the mobile device. Further, since a wire storage device for the sub-cable is not required, the towing vehicle can be made to have a simple structure and can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional remote control moving device, and FIG. 2 is a perspective view of a remote control moving device according to the present invention. 1...Mobile device, 2...Main cable, 3...
...Rail, 4'...Tow vehicle, 5'...Sub cable, 6...Support member.

Claims (1)

[Scope of utility model registration request] A mobile device, a main cable that is connected to the mobile device and applies control signals, drive power, etc. to the mobile device, a rail that houses the main cable, and a main cable that moves along the rail and that moves as the mobile device moves. A towing vehicle that feeds out and retracts the main cable, and a coil spring-like arrangement that surrounds the main cable and connects one end to the mobile device and the other end to the towing vehicle, and transmits control signals and driving power to the towing vehicle. A remote control mobile device comprising: a distributing sub-cable;