JPH028932Y2 - - Google Patents

Description

[Detailed description of the invention] (1) Industrial application field The present invention relates to a cable feeding and winding device used in power distribution line construction such as bypass construction.

(2) Conventional technology A cable feeding and winding device that pays out or winds up a cable by attaching a plurality of cable reels to one rotating shaft is known, for example, from the Utility Model Act of 1983-
It is conventionally known as described in Japanese Patent No. 40781.

(3) Problems that the invention aims to solve However, the conventional cable feeding and winding device
Since the allowable torque of the rotating shaft is controlled to the allowable torque of one cable reel among the multiple cable reels attached to the rotating shaft, it is difficult to wind the cable using multiple cable reels. Since the resistance of the cable applied to the rotating shaft is multiple times that of a single cable, the torque acting on each cable reel becomes small, making it impossible to wind the cable.

(4) Means for solving the problems In order to solve the above problems, the present invention has the following points:
This is a cable feeding and winding device in which a plurality of cable reels are attached in series to a rotating shaft of a book for feeding or winding a cable, and each cable reel is attached to the rotating shaft via a separate torque limiter.

(5) Effect With the above configuration, when performing the work of feeding out and winding up multiple cables, the rotary shaft can be rotated by controlling the permissible torque of the rotary shaft to several times the permissible torque of one cable reel as that of the cable reel being used. When driven, the plurality of cable reels used are controlled to respective allowable torques by respective torque limiters, and the plurality of cables are wound around the plurality of cable drums. By arbitrarily changing the allowable torque of each torque limiter, a plurality of cables can be wound around a plurality of cable drums with arbitrary tensions.

(6) Examples Examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the cable feeding and winding device attaches a first cable reel 2, a second cable reel 3, and a third cable reel 4 to a rotating shaft 1 via separate torque limiters 5, 6, and 7, respectively. Each torque limiter 5, 6, 7 is
Individual allowable torque can be set arbitrarily,
When a torque exceeding the set value is applied to each of the first cable reel 2, second cable reel 3, and third cable reel 4, the respective torque limiters 5, 6, and 7 sense it, and the rotation shaft 1 slips.
and the first cable reel 2 and the second cable reel 3
and disengage the third cable reel 4, and
To ensure that a cable reel 1, a second cable reel 2, and a third cable reel 4 always operate below their respective set allowable torques.

The rotating shaft 1 is rotationally driven by a gear 8 attached to one end, a gear 9 that meshes with the gear 8, and a hydraulic motor 11 attached via a reducer 10 to rotationally drive the gear 9, and is supplied to the hydraulic motor 11. The torque of the rotating shaft 1 is controlled by the pressure of the pressure oil.

With the above configuration, when winding or unwinding a three-wire cable, the torque limiters 5, 6, and 7 are used to connect the first cable reel 2 and the second cable reel.
The allowable torques of the cable reel 3 and the third cable reel 4 are set respectively, and the rotating shaft 1 is set to one of the allowable torques set for the first cable reel 2, the second cable reel 3, and the third cable reel 4.
The pressure of the pressure oil of the hydraulic motor 11 is controlled so that the rotary shaft 1 rotates with a torque three times the allowable torque of the rotary shaft 1.
The three-wire cable is simultaneously wound onto each of the first cable reel 2, second cable reel 3, and third cable reel 4, or simultaneously fed out from each cable reel. At this time, if a torque exceeding the allowable torque is applied to each cable reel, the torque limiter of the cable reel to which that torque is applied slips and disengages the rotating shaft 1 from the cable reel, causing each cable reel to always maintain the set allowable torque. Make it operate below the torque.

(7) Effects of the invention As described above, according to the invention, with a simple structure, each cable drum of a cable pay-out and take-up device in which a plurality of cable reels are attached to one rotating shaft can be operated with less than the allowable torque. Since the cable is actuated, a plurality of cables can be wound or unwound at the same time, and the present invention is effective in improving the efficiency of cable unwinding and winding work.

[Brief explanation of the drawing]

The drawing shows an embodiment of the present invention, and is a side view of the main parts of a cable feeding and winding device. 1... Rotating shaft, 2... First cable reel, 3
...Second cable reel, 4...Third cable reel, 5, 6, 7...Torque limiter.

Claims (1)

[Scope of utility model registration request] A cable feeding and winding device in which a plurality of cable reels are attached in series to one rotating shaft to feed or wind the cable, characterized in that each cable reel is attached to the rotating shaft via a separate torque limiter. Cable feeding and winding device.