JPH01152916A - Winder for cable - Google Patents

Abstract

PURPOSE:To avoid a multiple state in the state of winding, and to prevent functional trouble by forward turning or reversely turning two pairs of rotary bodies, rotating an endless rotary belt in a specified direction and winding or rewinding a cable on the outer circumference of the endless rotary belt. CONSTITUTION:When a cable 41 is rewound, rotary bodies 13, 14 of rotary body pairs 11 for prime driving, rotary bodies 23, 24 of rotary body pairs 21 for following and an endless rotary belt 31 are rotated in the direction of the rewinding of the cable by motors 19, 20, while a take-off machine 93 for a take-off gear 91 is turned in the direction of the rewinding of the cable, and the cable 41 is rewound from the outer circumference of the endless rotary belt 31. When the cable 41 is wound, on the contrary, the cable 41 is wound on the outer circumference of the endless rotary belt 31. Since a cable winding end section 44 following up the endless rotary belt 31 passes through detaching sections 12, 22 in each revolution body pair 11, 21 at that time, the cable 41 is not held among the revolution body pairs 11, 21 and the endless rotary belt 31 or is not interlocked with the revolution body pair 11, 21.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cable winding device suitable for use in supplying power and communicating between opposing devices (equipment).

"Prior Technology J" In general, when supplying power and communicating between moving equipment such as stacker cranes and reclaimers and fixed equipment for controlling the operating status of the equipment, electric cables, optical fiber cables for communication, and power/optical composites are used. Cables etc. are used.

In addition, the above-mentioned cables are used to supply power and communicate between robots (mobile devices) that carry out various operations and explorations underwater, underwater, underwater, under the sea, etc., and their robot control devices (fixed devices). used.

When such a cable is used to supply power and communicate between the above-mentioned mobile device and fixed device, it is preferable to wind the cable through a winding device equipped with a freely rotatable cable reel and hold it so that it can be unwound. Generally, when using the winding device, a communication method that covers a rotating body and a non-rotating body,
A power supply method must be adopted.

In communication systems and power supply systems for rotating and non-rotating bodies, slip rings are used to connect electrical wires, but optical fibers use so-called optical rotary joints without slip rings due to connection loss issues.
A slip ring-less connection using a prism etc. is used.

However, in the case of an optical rotary joint, it is not possible to connect many pairs at once, and in the case of a prism, a large connection loss becomes a problem.

As an alternative to this, there are
No. 933 discloses a slip ring-less connection device as described below.

In these known examples, a cable is loaded in a spiral state between a central shaft and a casing on its outer periphery, which are combined so as to be relatively rotatable, and the winding start and end of the cable spiral portion are connected to the central shaft and the casing, respectively. One end of the cable is pulled out from inside the central shaft to the outside, and the other end of the cable is pulled out from inside the casing to the outside.

In the above, when either the center shaft or the casing is a rotating body and the other is a non-rotating body, the relative rotation between the rotating body and the non-rotating body tightens the cable and causes it to shrink into a dense spiral. Between the limit and the spiral recovery limit, where the cable is restored to its original spiral state by relative rotation in the opposite direction, relative rotation between the rotating and non-rotating bodies is possible, and both ends of the cable are Since both are pulled out to the outside, the cable can be connected between the moving device and the fixing device while the cable connecting device is attached to the cable reel.

``Problem to be solved by the invention J The devices of the above-mentioned known examples are effective as slip ring-less connection devices, and exhibit a reasonable effect when combined with a cable reel, but the above-mentioned moving devices Due to the desire to increase the range of motion of the
When the length is increased from 1,000 m to several thousand meters, the cables wound through five cable reels are arranged in multiple rows and overlapped, resulting in poor heat dissipation of the cable in the wound state.

Such heat dissipation can be improved by increasing the cross-sectional size of the cable, but when the cross-sectional size of the cable is increased, the cable reel naturally becomes larger, which requires a moving device that works while towing it. For example, the burden on robots working underwater becomes heavier.

In view of the above-mentioned problems, the present invention aims to provide a cable winding device that can avoid multiplexing in the winding state and can wind and unwind a long cable without causing any functional trouble. .

In order to achieve the intended purpose, the cable winding device according to the present invention is equipped with two pairs of rotating bodies each having a separation section in the middle in the axial direction, and the distance between the axes is reduced. An endless rotating band is wound around the outer periphery of the pair of rotating bodies arranged at and is drawn out from the inner space of the endless rotating belt to the outside thereof.

"Operation J" In the case of the device of the present invention, the cable is wound around the outer periphery of the endless rotating band by rotating the endless rotating band in a predetermined direction by rotating the two sets of rotating bodies in forward or reverse rotation, or It is undone.

The cable that is wound or unwound as described above has its unwinding end (one end) interconnected with the moving device, passes through the endless rotating band, and is pulled out from the inner space of the endless rotating band. The wrapped end (other end) of the cable is interconnected with the fixing device via, for example, a connecting device such as the one in the known example.

In this way, communication, power supply, etc. can be performed between the rotating body and the non-rotating body.

At this time, each pair of rotating bodies for rotating the endless rotating belt in forward and reverse directions has a separation part in the middle in the axial direction, and the cable-wrapped end that accompanies the rotating endless rotating band is Since the cable passes through the separation section, troubles such as the cable being caught between the pair of rotating bodies and the endless rotating belt or entangled with the pair of rotating bodies do not occur.

"Example" The following is one example of the cable winding device according to the present invention.
This will be explained with reference to the drawings.

In the cable winding device l shown in FIGS. 1 to 3, a pair of rotating bodies 11 used as a driving force includes a plurality of rotating bodies arranged in the axial direction with a separation part 12 interposed in the middle in the axial direction. 13.14
Motors 19.20, which rotate synchronously with each other, are connected to support shafts 17.18 of each rotating body 13.14, which are rotatably supported via bearings 15.16.

In the above-mentioned cable winding device 1, the other pair of rotating bodies 21 for driven use also consists of a plurality of rotating bodies 23 and 24 arranged in the axial direction with a separation part 22 interposed in the middle in the axial direction, The support shaft 27.28 of each rotating body 23.24 is connected to a bearing 25.26.
It is rotatably supported via.

The two pairs of rotating bodies 11.21 are arranged with a distance between their axes, and the endless rotating belt 31 extends over these pairs of rotating bodies 11.21.
is being passed around.

The endless rotating belt 31 is a so-called crawler (trade name: Caterpillar) having a surface material made of rubber or synthetic resin on the outer circumferential surface, a belt, or a composite of a belt and a chain provided on the inner circumferential surface of the belt. Consists of endless structures.

Therefore, the pair of rotating bodies 1 corresponding to the endless rotating belt 31
Each of the rotating bodies 13.14.23.24 of 1.21 is made of a belt roller, a crawler wheel, a chain wheel, or the like, which corresponds to the endless rotating belt 31.

In the endless rotating belt 31, a through hole 32 for pulling out the cable is provided in the middle in the width direction, as clearly shown in FIG. A guide member 33 for pulling out the cable is attached.

A cable (the same cord) 41 that can be wound around the outer periphery of the endless rotating belt 31 and unwound freely is composed of a power/optical composite cable including a power supply line 42 and an optical fiber core 43.

The wrapped end 44 side of the cable 41 passes through the through hole 32 of the endless rotating band 31 and is drawn into the internal space 34 of the endless rotating band 31, and a part of the wrapped end 44 side is drawn into the inner space 34 of the endless rotating band 31. It is held between the back surface of the endless rotating belt 31 and the guide member 33.

A hollow rotating shaft 5 passing through the internal space 34 of the endless rotating belt 31 is provided between both pairs of rotating bodies 11.21 of the cable winding device l.
1 is arranged and rotatably supported by bearings 52 and 53, and an aperture 54 is provided on the axially intermediate outer circumference of the rotating shaft 51, and a buckling hole is provided on the outside of the edge of the aperture 54. A prevention portion 55 is provided in a protruding manner.

In the rotating shaft 51, an electrical slip ring (current collection ring) 61 is provided around one end protruding outside the internal space 34 of the endless rotating band 31, and a connecting device 71 is connected to the other end. has been done.

The connection device 71 has six shafts 7 that are combined in a relatively rotatable manner.
2 and the casing 73, and a spiral cable 74 that is spirally loaded between the outer periphery of these six axes and the inner periphery of the casing.
The beginning part 74a of the spiral cable 74
, the winding part b is the outer periphery of the six shafts 72, and the casing 7
It is fixed to the inner circumference of 3.

The spiral cable 74 is, for example, a flat optical cable with an optical fiber core and a conductive, highly resilient material such as phosphor bronze.

The six shafts 72 of the connecting device 71 are fixedly supported via a support 75, and the casing 73 of the connecting device 71 is interconnected with the rotating shaft 51 via a coupling 76.

1 to 3, on one side of the cable winding device 1, a traverser 81, a pulling device 91, and a moving device (mobile device) 101 are arranged in order, and on the other side of the cable winding device 1, A fixing device (fixed equipment) 201 is arranged.

The traverser 81 is for winding the cable 41 around the outer periphery of the endless rotating band 31 in an aligned manner, and the traverser 81 includes a guide device 82 that can freely reciprocate in the width direction of the endless rotating band 31, as well as a well-known structure. have

Like the cable winding device 1, the pulling device 91 includes two sets of upper and lower pulling devices 92 and 93, each consisting of a pair of rotating bodies and an endless rotating belt that extends over both rotating bodies.
One of the take-up machines 92 is connected to a motor 94 to drive it.

There are various types of mobile device 101;
As an example, a robot can be given, and the mobile device 1
When 01 is a robot, the fixing device 201 consists of a robot control device.

In the above, the unwinding end 45 side of the cable 41 is connected from the cable winding device 1 to the guide device 82 of the traverser 81,
Transfer device 1 via the collection machine 82 and 93 of the collection device 31
The power supply line 42 and the optical fiber core wire 43 connected to the moving device 101 and pulled out from the unwinding end 45 end are connected to the moving device 101.
connected to a predetermined part of the

The winding end 44 side of the cable 41 is connected to the rotating shaft 5 through the opening 54.
Among the power supply line 42 and optical fiber core wire 43 that are drawn into the power supply line 1 and pulled out from the winding end 44 side, the power supply line 42
are mutually connected to a part of the slip ring 61, and the optical fiber core wire 43 is mutually connected to the optical fiber core wire on the winding end portion 74b side of the spiral cable 74.

Further, among the feeder line 202 and the optical fiber core &1203 of the fixing device 201, the feeder line 202 is mutually connected to the other part of the slip ring 61, and the optical fiber core wire 203 is connected to the starting part 74a side of the spiral cable 74. It is interconnected with optical fiber core wire.

In this way, the moving device 101 and the fixing device 201 are electrically and optically connected.

In the cable winding device l described above, the moving device 101
When the cable 41 is unwound or unwound from the outer periphery of the endless rotating belt 31 as the action distance increases or decreases,
It will look like this:

That is, when rewinding the cable 41, the motor 1
9.20 as a power source, each rotating body 13.14 of the driving rotating body pair 11, and each rotating body 23.24 of the driven rotating body pair 21.
, and the endless rotating belt 31 is rotated in the cable unwinding direction, and the pulling machines 92 and 93 of the pulling device 91 are rotated in the cable unwinding direction to unwind the cable 41 from the outer periphery of the endless rotating belt 31. On the contrary, when winding the cable 41, each part of the cable winding device l and the pulling device 91 is rotated in the cable winding direction,
The cable 41 is wound around the outer circumference of the endless rotating band 31.

On this occasion,#! , the cable winding end 44 that accompanies the end rotation band 31 passes through the separation part 12.22 of each rotation body pair 11.21, so that the cable 41 is connected to the rotation body pair 11.21 and the endless rotation band 31. It is sandwiched between each rotating body pair,
21 , and since the rotating shaft 51 rotates following the cable winding end 44 , the winding end 44 does not wrap around the outer periphery of the rotating shaft 51 .

In the connection device 71, the casing 73 interconnected with the rotating shaft 51 rotates, but the six shafts 72 do not rotate.

Therefore, when the casing 73 of the connecting device 71 rotates forward when the cable 41 is unwound, the six shafts 72
When the spiral cable 74 is tightly wound around the outer periphery of the casing 73 and the casing 73 rotates in the opposite direction when winding the cable 41,
The spiral cable 74 is unwound around the outer periphery of the six shafts 72 .

Since the spiral cable 74 has a spiral contraction limit and a spiral restoration limit, the cable 41 can be wound and unwound by the cable winding device l within these limits.

Next, a specific example of the cable winding device 1 according to the present invention and a comparative example thereof will be described.

Specific example: Diameter Dl of cable 41 = 50 mmφ cable 41 (
7) Length L+ = 1500+w Diameter D2 of the circular part of the endless rotating belt 31 = 1.4 m Length L2 of the straight part of the endless rotating belt 31 = 8 m Average winding diameter (diameter) of the cable 41 To =
Cable winding length 13 per 1/1 revolution of the 1.5 m endless rotating belt 3 = approximately 18.7 m Rotation amount of the endless rotating belt 31 to wind the entire length of the cable 41 R = Ll/L3 = 90 times In this specific example As is clear above, the endless rotating belt 31
By rotating the cable 41 90 times, it was possible to wind the cable 41 with a length of 1500 m.

Comparative example Cable diameter 11 = 50m+++φ Cable length L+ = 1500m Cable reel winding trunk diameter D2 = 1.4mφ Cable average winding diameter (diameter) D3 = 1.5m Cable winding length L3 per cable reel rotation = approx. 18.7 m Amount of rotation of the cable reel to wind the entire length of the cable R-L+/L3 = 242 times In this comparative example, as is clear above, the length is 150 (
It takes 24 cable reels to wind up 1m of cable.
The reel must be rotated twice, and the reel rotation is required to be 2.5 times or more compared to the specific example.

In the above-described embodiment, the rotating shaft 51 and the casing 73, which are connected to each other, may be forcibly rotated in synchronization with the endless rotating band 31. In this case, the motor 18. power is transmitted to the rotating shaft 51, or an independent drive system is connected to the rotating shaft 51.

In addition, when the connection device 71 is configured such that the six shafts 72 are rotatable and the casing 73 is fixed, the six shafts 72 are connected to the rotating shaft 51 instead of the casing 73, and the casing 73 is You can fix it with .

"Effects of the Invention J As explained above, when using the cable winding device of the present invention, the following effects can be obtained.

1) A long cable can be wound and unwound with a small amount of rotation on the outer periphery of the endless rotating band that spans two pairs of rotating bodies.

2) Since the wound end of the cable passes through the endless rotating band and is drawn out from the internal space of the endless rotating band, it can be easily connected to a slip ring-less connection device.

3) Each pair of rotating bodies for rotating the endless rotating belt forward and backward has a separation part, and the cable winding end that rotates together with the endless rotating band passes through the separation part. Therefore, you can wind up and unwind the cable without any trouble.

4) By increasing the distance between the axes of each pair of rotating bodies and lengthening the straight portion of the endless rotating band, a longer cable can be wound and unwound.

5) When winding the entire length of the cable in the endless rotating band, the effect of item 1 reduces the number of overlapping cables, which improves heat dissipation of the cable.

6) Due to the effect of item 5 above, there is no need to increase the cross-sectional diameter of the cable in order to increase heat dissipation.In other words, the cross-sectional diameter of the cable can be made smaller, reducing the burden of winding and unwinding the cable. light.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the cable winding device according to the present invention, Fig. 2 is a side view of the same, Fig. 3 is a longitudinal sectional view of the same, and Fig. 4 is a cable winding device of the same. It is a sectional view showing an end. 1...Cable winding device 11...Rotating body pair 12...Separating section 13...Rotating body 14...Rotating body 21 ... Rotating body pair 22 ... Separation section 23 ... Rotating body 24 ... Rotating body 31 ... Endless rotating band 32 ... ...Through hole 33...Guide member 34...Inner space 41...Cable 42...Power line 43...Optical fiber Shinsen Agent Patent Attorney Yoshio Saifuji

Claims (4)

[Claims] (1) Two pairs of rotating bodies are provided with a separation part in the middle in the axial direction, and an endless rotating belt is wrapped around the outer circumference of both pairs of rotating bodies arranged with a distance between the axes. A cable winding device characterized in that a wound end side of a cable that can be wound around the outer circumference of a band and unwound freely passes through the endless rotating band and is drawn out from the internal space of the endless rotating band. Device. (2) A through hole for pulling out the cable is provided in the middle in the width direction of the endless rotating band, and a guide member for pulling out the cable is attached to the back surface of the endless rotating band, freely and facing the through hole, The cable winding device according to claim 1, wherein the winding end of the cable passes through the through hole and is held between the back surface of the endless rotating band and the guide member. (3) Claim 1 in which the guide member is made of a spring material
Cable winding device as described in section. (4) The cable winding device according to claim 1, wherein the pair of rotating bodies is a driving force.