JPH09298820A - Insulating tape winding device for power cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to wind oil impregnated power cable by a winding machine in a state where no cable core is being sent by using means for winding insulation tape around a target place while winding out insulation tape from a pad and means for progressing cable in a longitudinal direction. SOLUTION: Insulation tape 10 is wound continuously in a longitudinal direction on the peripheral surface of a power cable connecting portion 12 by winding out insulation tape 10 from a pad 18, giving planetary motion to the pad 18 around a cable connecting portion 12, winding the insulation tape 10 around the power cable connecting portion 12, and progressing a winding head machine 20 in the longitudinal direction of the power cable connecting portion 12. In this way, when the tape winding is completed for the insulation tape 10 in one layer, a treatment is given to overlap the end of insulation tape 10 without forming a step or a level difference. Then, the winding head machine 20 is returned to the origin in a state where no insulation tape 10 is wound out, and then the insulation tape 10 is wound for the next layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the formation of a reinforced insulating material at an oil-impregnated paper power cable (OF cable, solid cable) connection portion, which does not require a cable conductor, a cable core feeding device, and a winding device. Instead, the present invention relates to a device for winding an insulating tape.

[0002]

2. Description of the Related Art Conventionally, in forming an insulator of an oil-immersed paper power cable, as shown in FIG. 9, a cable core a is fed from a feeding device b while traveling in a rotating paper winding head d of a paper winding machine c. Then, the insulating paper e is wrapped around the cable core a. After the insulator is formed in this way, the cable core a is wound up by the winding device f.

[0003]

However, in the above prior art, the cable core a is set in the feeding device b and the winding device f, and the insulating paper e is wound while the cable core a is running. And for this,
When the cable core a cannot be moved, there is a problem that the insulating paper cannot be wound.

Here, when laying a submarine cable or the like, the power cable is usually shipped in a state wound around a drum and connected at the laying site. The power cable thus shipped has a length determined by the capacity of the winding device. However, in order to minimize the connection work on site, it became necessary to connect the oil immersion paper power cables wound on drums in the factory before shipping. In this case,
The power cables are connected to each other in a situation in which the power cable cannot be wound, and therefore, in a situation in which the cable core a cannot be moved.

Therefore, since the conventional paper winding machine c is in an unusable state, the worker must manually wrap the insulating paper at the connection portion of the power cable, resulting in a heavy work load. Moreover, since the insulating paper must be wound so as to obtain predetermined electrical characteristics, skill is required. Therefore, conventionally, there was a problem that the formation cost of the connection portion was high.

The present invention has been made to solve the above-mentioned problems of the prior art, and allows an oil-impregnated paper power cable to be mechanically wound with insulating paper in a state where the cable core cannot be fed, thereby reducing the work load. An object of the present invention is to provide an insulating tape winding device that can reduce the cost and can obtain a predetermined insulating electrical characteristic and reduce the cost.

[0007]

The present invention has the following constitution in order to solve the above problems. The invention of claim 1 is a device for manufacturing an insulator by winding an oil-impregnated insulating tape having a paper layer around a power cable (cable core), and a holding means for holding a target portion of the cable at a fixed position. ,
Tape unwinding means for winding the insulating tape around the target location while unwinding the insulating tape from the pad to wind the insulating tape around the target location, and driving means for advancing the winding means along the longitudinal direction of the cable; An insulating tape winding device for a power cable, comprising: a winding operation control unit that operates the driving unit and the winding unit to continuously wind the insulating tape around the target portion in the longitudinal direction. .

According to a second aspect of the present invention, there is provided an apparatus for manufacturing a connection portion insulator by winding an oil-impregnated insulating tape having a paper layer around a power cable connection portion, the connection portion holding the connection portion at a fixed position. Holding means, tape winding means for planetary movement of the pad around the connecting portion while unwinding the insulating tape from the pad to wind the insulating tape around the connecting portion, and advancing the winding means along the longitudinal direction of the connecting portion. And a winding operation control means for operating the driving means and the winding means to continuously wind the insulating tape around the outer peripheral surface of the connection portion in the longitudinal direction. It is a tape winding device.

A third aspect of the present invention is the insulating tape winding device for a power cable according to the first or second aspect, wherein the insulating tape has paper layers on both sides of a resin layer.

According to the first aspect of the present invention, while the target portion of the cable is held at a fixed position by the holding means, the pad is planetarily moved around the target portion while the insulating tape is being unwound from the pad and the target is moved. By advancing the winding means along the longitudinal direction of the cable while winding the insulating tape around the location, the insulating tape is continuously wound around the outer peripheral surface of the target location in the longitudinal direction.
Therefore, the insulating tape containing the oil-impregnated paper layer can be wound around an appropriate target portion of the power cable fixed at a fixed position.

According to the invention of claim 2, claim 1
The power cable target location of
The insulating tape can be continuously wound around the connecting portion along the longitudinal direction. Therefore, the insulating tape containing the oil-impregnated paper layer can be wound around the connection portion of the power cable fixed at a fixed position.

The insulating tape has a paper layer on both sides of the resin layer, preferably P.
It is PLP (polypropylene laminated paper).
Also, it may be made of only paper.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 7 are explanatory views of an insulating tape winding device for a power cable according to an embodiment of the present invention. 1 is an overall side view of the apparatus, FIG. 2 is a view of the winding head machine 20 as seen from the traveling direction, FIGS. 3 and 4 are plan and side views of the winding head machine 20, and FIG. FIG. 6 is a cross-sectional explanatory view of the insulating tape 10, FIG. 7 is a side view explanatory diagram of winding the insulating tape 10, and FIG. 8 is a cross-sectional explanatory view of the connecting portion 12.

This winding device is an (FJ) device for connecting an OF cable in which an insulator is formed of an oil-immersed insulating tape at a factory before shipment, and is an oil-immersed insulating tape 10 having a paper layer. It is an apparatus for manufacturing a multi-layered connection part insulator 14 by winding it around the power cable connection part 12.

The winding device includes a connecting portion holding machine (corresponding to a connecting portion holding portion) 16 for holding the connecting portion 12 at a fixed position, and the periphery of the connecting portion 12 while unwinding the insulating tape 10 from the pad 18. A winding head machine (corresponding to a tape winding means) 20 for planetarily moving the pad 18 to wind the insulating tape 10 around the connecting portion 12,
A drive mechanism 22 for causing the winding head machine 20 to advance (forward / backward) along the longitudinal direction of the connection portion, and an operation control of the drive mechanism 22 and the winding head machine 20 to control the outer periphery of the connection portion 12 And a winding operation controller 24 for winding the insulating tape 10 continuously on the surface in the longitudinal direction.

As shown in FIG. 1, the winding device is
A plurality of connecting part holders 16 are arranged and installed on a horizontally installed base 26 at intervals in the longitudinal direction, and the connecting part holders 16 support the weight of the power cable connection part 12 so that the power cable is supported. The connection section 12 is placed and held on a gantry 26. Although not shown, the power cables before and after the power cable connecting portion 12 are both coiled, so that they cannot be wound or unwound.

(Connecting part holder 16) Connecting part holder 16
Is for vertically moving the mounting plate 16a by the cylinder 16b, and the cylinder 16b adjusts the upper limit position of the mounting plate 16a at the ascending operation end to make the vertical position of the power cable connecting portion 12 constant. . Further, the cylinder 16b descends so as not to get in the way of the winding head machine 20 when the winding head machine 20 moves to the vicinity.

(Winding Head Machine 20) The wrapping head machine 20 has the power cable connecting portion 1 held as described above.
2, the insulating tape 10 is wrapped around the power cable connection portion 12 when moving in the forward direction, that is, traveling in one direction. is there.

The winding head machine 20 has a substantially rectangular metal frame 20a and is provided with a mechanism for winding the insulating tape 10 at a portion on the rear surface side when the insulating tape 10 is wound. On the winding head machine 20, the pad 18 in a state where the insulating tape 10 is wound is provided on the power cable connecting portion 1.
Two sets are provided at equal angles on a diagonal line centering on 2, and one set is a pad 18s for S winding and the other set is a pad 12z for Z winding. The pad 18 is rotatably supported by a pad holder 18a, and the pad holder 18a is fixed to a rotary disk 28 via a pad bracket 18b. As shown in detail in FIG. 5, a dancer roll 30 is swingably attached to the pad flacket 18b, and the insulating tape 10 is directed toward the intended power cable connecting portion 12 via the dancer roll 30. It is being rolled out.

The rotating disk 28 has a substantially "C" -shaped annular shape in which a part (a lower portion in the original position as shown in FIGS. 2 and 5) is cut out so as to allow the power cable connecting portion 12 to pass therethrough. The roller 28a is fixed to the outer peripheral surface of the guide portion 20b projecting cylindrically from the frame 20a of the winding head machine 20, and the disk 28 is rotatable on the frame 20a by the roller 28a. It is provided. On the frame 20a side of the rotary disc 28, an annular gear 32 having substantially the same diameter is fixedly provided to the disc 28, and as shown in FIG. 2, a motor and a gear 3 are provided on the side surface of the frame 20a.
A rotary drive mechanism 34 composed of 4a is provided, and the rotary disk 28 is rotated by the annular gear 32 meshing with the gear 34a and rotationally driven. A cover 20d is provided to cover the rotary disk 28 and each pad 18, and the cover 20d allows
The insulating oil sprinkled from the pad 18 when the insulating tape 10 is wound is prevented from scattering.

At the lower part of the winding head machine 20, as shown in FIG. 2 or 4, a linear guide 36 for reciprocating the winding head machine 20 on a frame 26 is provided.
The linear guide 36a is provided with a linear guide rail 36b fixed to the upper surface of the mount 26.
Are slidably engaged with. The drive mechanism 22 of the winding head machine 20 uses a servo motor 22a to rotate the sprocket 22.
Gears 22c, 2 from b by chain or belt
2d is driven, and this gear 22d meshes with a rack gear 22e fixed to a frame parallel to the linear guide rail 36b so that the winding head machine 20 advances.

At the center of the winding head machine 20,
A head roller 20c that is rotatable while supporting the power cable connection portion 12 is provided to be vertically movable. The head roller 20c is vertically driven by an actuator such as a cylinder as the connecting portion insulator 14 is thickened by winding the insulating tape 10.

As shown in FIG. 5, the insulating tape 10 is fed out from a set of S-winding pads 18s1 and 18s2 and a set of Z-winding pads 18z1 and 18z2 through the respective dancer rolls 30. The pad 18 is appropriately rotated, and the tension of the dancer roll 30 is adjusted by a spring 38 so that the insulating tape 10 is not loosened.

As shown in FIG. 6, the insulating tape 10 is a sheet in which the central layer 10a is made of polypropylene, and the double-sided layers 10b and 10c are paper layers.
It is PLP (polypropylene laminated paper).

Although not shown in detail, the winding operation controller 24, which is composed of a sequence controller or a programmable controller, controls the winding of the insulating tape 10 of the winding head machine 20 and the drive mechanism 22.

Next, the operation of the insulating tape winding device according to the embodiment will be described. First, the power cable connecting portion 12 is placed on the connecting portion holder 16 on the pedestal 26 and held in the horizontal position. The power cable connection 12 is stabilized at a fixed position by its own weight. Then, as shown in FIGS. 1 to 4, the pedestal 26 is held with the power cable connecting portion 12 held.
Is set to the winding head machine 20. At the end of the power cable connected at the connection portion 12 side, the insulator of the power cable is wound up. However, the insulating tape 10 is set to a state where it can be unwound to some extent in connection with the opening.

The insulating tape 10 is extruded from the pad 18 of the winding head machine 20 through the dancer roll 30. Then, a process of overlapping the lead of the insulating tape 10 with the insulator at the end of the power cable connection side is performed. afterwards,
The winding operation controller 24 rotates the rotating disk 28 and advances (forwards) the winding head unit 20. As a result, the insulating tape 10 is unwound from the pad 18 and the pad 18 is moved around the power cable connection portion 12 in a planetary motion so that the insulating tape 10 is wound around the power cable connection portion 12 while the winding head device 20 is connected to the power cable connection portion 12. By advancing along the longitudinal direction of the cable connecting portion 12, the insulating tape 10 is continuously wound around the outer peripheral surface of the power cable connecting portion 12 in the longitudinal direction.
Insulating oil is appropriately immersed in the insulating tape 10 at the time of winding, and supplied as needed.

After the winding of one layer of the insulating tape 10 is completed as described above, the end of the insulating tape 10 is overlapped with the power cable insulator so as not to have a step. Then, the winding head machine 20 is returned to the base point (returned) while the insulating tape 10 is not unwound, and the next layer of the insulating tape 10 is wound. After the insulating tape 10 is unwound from the S-winding pads 18s1 and 8s2 and a predetermined layer (for example, 16 layers) of S-winding is performed as described above, the insulating tape 10 is then removed from the Z-winding pads 18z1 and 18z2. Unwinding and Z winding of a predetermined layer (16 layers) is performed.

Therefore, the insulating tape 10 containing the oil-impregnated paper layer can be accurately and automatically wound around the appropriate connecting portion 12 of the power cable fixed at a fixed position. That is, in FIG. 8, the connecting portion insulator 14 is formed as described above.
It shows the power cable connection portion 12 formed with. As shown in FIG. 8, at the connection end of the power cable 40, the cable insulator 41 made of the insulating tape is appropriately removed (the cable inner semiconductive layer 40a and the outer semiconductive layer 4).
0b is also removed), the conductors 42 are connected by the connecting pipe 44, and the peripheral surface thereof is covered with the connecting portion internal semiconductive layer 46.
The winding device winds the insulating tape 10 around the inner semiconductive layer 46 of the connecting portion and the outer peripheral surface of the insulator 41 as described above to manufacture the insulator 14. After the insulator is manufactured, an external semiconductive layer or a jacket layer is manufactured on the power cable connection portion 12 by another line or the like.

In the above embodiment, the insulating tape 10 is used.
Is wound at the power cable connecting portion 12, but it is apparent that the same can be applied to the winding of the insulating tape 10 of the insulator of the power cable.

[0031]

As described above, according to the present invention, the oil-impregnated paper power cable can be mechanically wound with the insulating paper in a state where the cable core cannot be fed, so that the work load can be reduced and a predetermined insulating electrical property can be obtained. The characteristics can be obtained and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory view of an insulating tape winding device for a power cable according to an embodiment of the present invention, and is an overall side view thereof.

FIG. 2 is a view from the traveling direction of the winding head machine.

FIG. 3 is a plan view of a winding head machine.

FIG. 4 is a side view of the winding head machine.

FIG. 5 is an explanatory view of winding an insulating tape.

FIG. 6 is a cross-sectional explanatory view of an insulating tape.

FIG. 7 is an explanatory view of winding the insulating tape as seen from the side of the insulating tape winding device.

FIG. 8 is a cross-sectional explanatory diagram after manufacturing of the insulator of the power cable connecting portion.

FIG. 9 is an explanatory view of a conventional insulating tape winding device,
(A) is a general view, (b) is a header explanatory diagram.

[Explanation of symbols]

 10 Insulating Tape 12 Power Cable Connection 14 Connection Insulator 16 Connection Holding Machine 18 Pad 20 Winding Head Machine 22 Drive Mechanism 24 Motion Controller 26 Frame 28 Rotating Disk 36a Linear Guide 36b Linear Guide Rail

Claims (3)

[Claims] 1. An apparatus for manufacturing an insulator by winding an oil-impregnated insulating tape having a paper layer around a power cable, comprising: a holding means for holding a target position of the cable at a fixed position; and an insulating tape from a pad. Tape winding means for planetarily moving a pad around the target location while unwinding to wind an insulating tape around the target location, drive means for advancing the winding means along the longitudinal direction of the cable, the drive means and the An insulating tape winding device for a power cable, comprising: a winding operation control means that operates the winding means to continuously wind the insulating tape around the target portion outer peripheral surface in the longitudinal direction. 2. A device for producing a connection part insulator by winding an oil-impregnated insulating tape having a paper layer around a power cable connection part, the connection part holding means for holding the connection part at a fixed position, and the insulating part. Tape unwinding means for winding the insulating tape around the connection part by planetary movement of the pad around the connection part while unwinding the tape from the pad, and drive means for advancing the winding means along the longitudinal direction of the connection part, A winding operation control means for activating the driving means and the winding means to wind the insulating tape continuously on the outer peripheral surface of the connection portion in the longitudinal direction. 3. The insulating tape having a paper layer on both sides of a resin layer, according to claim 1 or 2.
An insulating tape winding device for a power cable according to.