JP2756229B2 - Stripping device for insulated wires - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated wire stripping apparatus which is mounted on a manipulator and is operated to strip the insulated wire in a live state and expose the core wire.

[0002]

2. Description of the Related Art In many cases, power distribution work for overhead electric wires is performed as live-line work in order to perform work while supplying electric power to consumers. Such power distribution work is poor in workability, and it is necessary to pay particular attention to hot work of high voltage electric wires. In addition, the work is required to be performed safely, reliably and in a short time.

[0003] Therefore, in particular, the distribution work of the overhead electric wire in the live state is performed using the indirect construction vehicle 2 as shown in FIG. The indirect construction vehicle 2 (manipulator vehicle) is driven by hydraulic pressure to be able to pivot and extend and retract, and a bucket 6 disposed at the upper end of the boom 4.
And an operating lever 8 disposed on the bucket 6, and a manipulator 10 that is operated by operating the operating lever 8. An operator operates the operating lever 8 while riding on the bucket 6, and operates the manipulator 10. Power distribution work can be performed.

[0004] At the tip of the manipulator 10, various power distribution work tools for the purpose of automating power distribution work can be connected. The tool shown in FIG. is there. Conventional coating stripping device 1
In No. 2, there was a problem of garbage such that the coating dust peeled off from the insulated wire 1 fell to the ground, and a disadvantage unfavorable in terms of safety.

Therefore, in order to solve such a problem,
The coating stripping device 12 is provided with a collecting net 14 for collecting the coating waste stripped from the insulated wire 1.

[0006]

However, the above-described collecting net 14 is fixed to the lower side of the sheath stripping device 12, that is, the lower side of the insulated wire. Collection net 1 for collected coating waste
4 has a defect that it cannot be reliably collected . In other words, the coating stripping device 12 rotates the stripping blade along the outer periphery of the insulated wire 1 to strip the coating of the insulated wire 1. As a result, it may be peeled off and scattered with a spread, and may protrude from the collection net 14 and fall.

[0007] Therefore, if the collecting net increase the collection <br/> port over falling range of the coating debris, but becomes a certainty collection of coating debris, collecting net is large, the manipulator 10 It is not preferable because operability is limited. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an insulated wire stripping apparatus capable of reliably collecting coating debris stripped from an insulated wire. Is to do.

[0008]

In order to achieve the above-mentioned object, an apparatus for stripping an insulated wire according to the present invention has a blade which rotates along the outer periphery of the insulated wire. It comprises a stripping tool for stripping the covering of an electric wire, and a dust receiver provided on the stripping tool, which rotates around the insulated wire together with the blade and collects the stripped coating dust.

[0009]

According to the apparatus for stripping an insulated wire according to the present invention, the blade rotates along the outer periphery of the insulated wire to strip the insulated wire. The dust receiver collects the coating dust peeled off by the blade while rotating around the insulated wire together with the blade.

[0010]

An embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 show a device 20 for stripping the insulated wire 1 to which the present invention is applied (hereinafter, simply referred to as a device 20). The stripping device 20 includes an attachment tool 22 and a tool adapter 24 to which the attachment tool 22 is detachably mounted.

The attachment tool 22 is attached to the tip of the manipulator 10 via a tool adapter 24, and is rotated by receiving a driving force from a hydraulic drive motor of the manipulator 10. The attachment tool 22 includes a pair of frames 50, 52, which are formed of circular disks, are spaced apart parallel to each other, and are connected by a plurality of rods 54. A cutter unit 56 (scalping tool) is provided on the inner surface of one frame 50, and a brush unit 58 is provided on the inner surface of the other frame 52. That is, the brush unit 58 is for polishing the core wire 1b after stripping off the coating 1a of the insulated wire 1.

As is clear from FIGS. 3 and 4, the frames 50, 52 are formed with notches 62, 70 for taking the insulated wire 1 extending from the peripheral surface to the axis. , 70 face in the same direction. As shown in FIG. 3, the cutter unit 56 includes a cutting blade 64 for stripping the cable and a tool post 66, and the cutting blade 64 is inclined with respect to the rotation center of the frame 50 via the tool post 66. Attached to. And the cutting blade 64
Although it is attached to the tool post 66 via a screw, it is rotatable around this screw, and the cutting edge of the cutting blade 64 protrudes into the notch 62. Further, a spring 68 extends between the tool post 66 and the cutting blade 64, and the spring 68 is provided with a notch 62 in the cutting blade 64, that is, a cutting edge thereof.
A predetermined pressing force inward is applied.

Therefore, with the insulated wire 1 being received in the notch 62 as shown in FIG.
2, that is, when the frame 50 is rotated in the direction of arrow C in FIG. 3, the cutting blade 64 can bite into the coating 1a of the insulated wire 1. Further, the depth of the cutting blade 64 biting into the coating 1a can be set according to the thickness of the coating 1a of the cable.

When the frame 50 is rotated in the direction of arrow CC in FIG. 3, the cutting blade 64 rotates around the insulated wire 1 while sliding on the insulated wire 1, so that the cutting blade 64 bites into the coating 1a. Never. As shown in FIG. 4, the brush unit 58 includes a pair of arc-shaped wire brushes 72 and 74.
74 are arranged so as to face each other. One end of each of the wire brushes 72 and 74 is attached to the frame 52 via a bolt 78, and is rotatably supported by the bolt 78. The other end of the wire brush 72 and 74 is expandable. . The other ends of the wire brushes 72 and 74 are used as receiving ports for the insulated wire 1. Further, a predetermined force is applied to these wire brushes 72 and 74 in a closing direction by a spring (not shown).

A curved guide plate 80 as shown in FIG. 4 is attached to the other end of each of the wire brushes 72, 74. These guide plates 80 are for facilitating the insulated wire 1 to be taken between the wire brushes 72 and 74. A pair of plates 82, 84 are attached to the outer surfaces of the frames 50, 52. These plates 82 and 84 are also provided with notches for introducing the insulated wire 1 in accordance with the notches 62 and 70 of the frames 50 and 52.

Between these plates 82 and 84, FIG.
As seen best in the circumferential direction of the frames 50 and 52, the first cover 86, the second cover 88, and the third cover 90 are provided except for the cutout areas of the frames 50 and 52. Have been. Second cover 88
Is rotatably supported at one end, and opens outward as shown in FIG. The side ends of the second cover 88 and the third cover 90 are closed with screws or the like.

The space formed by these covers 86, 88, 90 and the plates 82, 84 is a waste receptacle 92.
It has been. A rotor section 94 is attached to the attachment tool 22 on a plate 82 on the right side in FIG. The rotor portion 94 extends in the axial direction, and has a cutout groove 96 for taking in the insulated wire 1 extending in the axial direction. The notch groove 96 is in the same direction as the notches 62 and 70 of each of the frames 50 and 52. The rotor 94 is detachably mounted on the tool adapter 24 side.

A power gear 98 is connected to an end face of the rotor portion 94. The power gear 98 is also formed with a notch 100 for taking in the insulated wire 1 so as to be continuous with the notch groove 96. I have. And this rotor part 94
Is detachably attached to the tool adapter 24, and a rotational driving force is supplied to the power gear 98 from the tool adapter 24 side.

Various attachment tools 22 are prepared according to the outer diameter of the insulated wire 1. The tool adapter 24 includes a power input unit 26, a gear connecting unit 28, a gear driving unit 30, and a stator unit 32. The power input unit 26 is connected to the lower side of the gear connection unit 28 as viewed in FIG. 1, and includes a detachable socket 34 at the tip of the manipulator. In the power input unit 26, an input shaft 36 is rotatably supported at the axis of the socket 34 via a receiving shaft 35. This input shaft 36
Has a first bevel gear 38 mounted at one end thereof. 1st bevel gear 3
8, the second bevel gear 40 is vertically meshed.

A gear drive unit 30 is connected to the left side of the power input unit 28 in FIG. 1, and a power shaft 42 connected to the second bevel gear 40 is connected from the gear connection unit 28 to the gear drive unit 30. Extending. The gear driving section 30 includes a housing 102 as shown in FIG.
2, a drive gear 104, idle gears 106 and 10
8 are accommodated.

The drive gear 104 is connected to a power shaft 40 extending from the gear connecting portion 28, and is rotatable together with the power shaft 40. Idle gear 106, 108
Are rotatably supported by rotating shafts fixed to the housing 102, respectively. And the idle gear 10
6 and 108 are meshed with the drive gear 104.
The end face of the housing 102 on the gear side is the spacer 3.
1 and the rotation axis of each gear is
It is also supported on one side.

As shown in FIG. 5, a power gear 98 of the rotor portion 94 can mesh with the idle gears 106 and 108. That is, when one of the idle gears is not meshed with the notch 100 of the power gear 98 in opposition, the other idle gear is
It is designed to be engaged with other parts except the notch 100 of FIG. As a result, power can always be transmitted from the drive gear 104 to the power gear 98.

A stator 32 is connected to the left side of the gear driving section 30 via a spacer 31. As shown in FIG. 6, the stator portion 32 includes a pair of arc-shaped pressing pieces 112 and 114. Both ends of these holding pieces 112 and 114 are attached and fixed to the spacer 31 via bolts 116, and hold the rotor 94 so as to be rotatable and not to come off so as to sandwich the peripheral surface of the rotor 94. Each of the holding pieces 112 and 114 has a leaf spring 118 attached to the inner surface thereof facing the peripheral surface of the rotor portion 94.
A sliding force is applied to the rotor portion 94 by sliding contact with the peripheral surface of the rotor portion 94 to prevent rotation of the rotor portion 94 due to inertia.

The stripping device 2 thus configured
0 is the manipulator 1 of the indirect construction vehicle 2 shown in FIG. 10 described above via the socket 34 (FIG. 1) of the power input unit 26.
It is detachably attached to the tip of the zero. When the stripping device 20 is mounted on the manipulator 10, the input shaft 36 is connected to the output shaft of a hydraulic motor (not shown) for driving the manipulator 10.

The operation of the stripping device 20 will be described below. Before starting the operation of stripping the coating 1a of the insulated wire 1, the stripping device 20 has the notches 62 and 70 and the notch groove 96 of the attachment tool 22 as shown in FIG.
To the insulated wire 1 side. Then, the insulated wire 1 is taken into the rotation center position in the attachment tool 22.

Next, when the driving hydraulic motor is rotated in one direction, the input shaft 36 of the tool adapter 24 is rotated, and the power shaft 4 is rotated via the first and second bevel gears 38 and 40.
2 rotates. The rotation of the power shaft 42 causes the drive gear 1
04 (FIG. 5) rotates, and the power gear 98 rotates via the idle gears 106 and 108. And the power gear 98
With the rotation of the cutter unit 56 and the brush unit 5 of the attachment tool 22 via the rotor unit 94.
8 rotates in the direction of arrow C (FIG. 3).

When the cutter unit 56 rotates in the direction of arrow C, the cutting edge 66 of the cutting blade 66 of the cutter unit 56 bites into the coating 1a of the insulated wire 1. At this time, since the cutting edge of the cutting blade 66 is slightly separated from the core wire of the insulated wire 1, the core wire 1b is not damaged. First, the attachment tool 22 makes one rotation around the insulated wire 1, and a part of the coating 1 a of the insulated wire 1 is peeled off by the cutting blade 64 of the cutter unit 56. Thereafter, as shown in FIG. 7, the manipulator 10 is operated to gradually move the attachment tool 22 in the axial direction of the insulated wire 1, that is, in the direction of the arrow A while rotating the insulated wire 1 around the insulated wire 1. By doing so, the cutting blade 64 of the cutter unit 56 continuously and spirally peels off the coating 1a of the insulated wire 1. Thus, the coating 1a of the insulated wire 1 is peeled off over a predetermined length.

With the rotation of the attachment tool 22,
Since the dust receptacle 92 rotates around the insulated wire 1, the covering dust of the insulated wire 1 peeled off by the cutting blade 64 of the cutter unit 56 is reliably collected in the dust receptacle 92. Note that the coating waste collected in the waste receptacle 92 can be easily taken out by opening the second cover 88. After the stripping operation of the sheath 1a of the insulated wire 1 is completed, the stripping operation of the exposed core wire 1b is performed.

First, the wire brushes 72 and 74 of the brush unit 58 are positioned at the end of the exposed core wire 1b. Then, the drive hydraulic motor is rotated in the reverse direction, and the cutter unit 56 and the brush unit 58 are moved in the direction indicated by the arrow CC.
Rotate in the direction. Thereafter, the manipulator 10 is operated to reciprocate the brush unit 58 over the range of the exposed core wire 1b while rotating the attachment tool 22. By doing so, the film around the core wire 1b, for example, the oxide film, is peeled off by the wire brushes 72, 74 of the brush unit 58. In addition, the coating dust of the polished core wire 1b is the same as the coating dust,
It is repaired by the waste receptacle 92.

After finishing the work of polishing the core wire 1b of the insulated wire 1, the drive hydraulic motor is stopped, and the stripping device 20 is removed from the insulated wire 1. Thus, the stripping operation of the insulated wire 1 and the polishing operation of the core wire are completed. If the stripping device 20 includes only the cutter unit 56, it is sufficient to collect only the coating debris stripped from the insulated wire 1;
8, 90 may be a mesh-shaped cover or a net.

The peeling device 20 may be connected to a hand manipulator having a drive output.

[0032]

As described above, the insulated wire stripping apparatus of the present invention has a blade which rotates along the outer periphery of the insulated wire, and the blade of which strips the insulated wire by the rotation of the blade. A tool and a scrap receiver, which is detachably provided on the peeling tool, rotates around the insulated wire together with the blade, and collects the stripped coating dust. The obtained coating waste does not fall to the ground and has an excellent effect of being reliably collected in the coating receiver.

[Brief description of the drawings]

FIG. 1 is a front view of a coating stripping apparatus with a part cut away.

FIG. 2 is a side view of the coating stripping device with a part broken.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV in FIG.

FIG. 6 is a sectional view taken along the line VI-VI in FIG.

FIG. 7 is a view showing the operation of the cutter unit.

FIG. 8 is a diagram showing a state of power distribution work using a conventional coating stripping device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulated wire 10 Manipulator 20 Stripping device (stripping device) 22 Attachment tool 24 Tool adapter 56 Cutter unit 58 Brush unit 64 Cutting blade 72, 74 Wire brush 82, 84 Plate 86 First cover 88 Second cover 90 Third Cover 92 waste bin

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshio Mizutani Furukawa Electric Co., Ltd. 2-6-1 Marunouchi, Chiyoda-ku, Tokyo (56) References JP-A-1-99424 (JP, A) JP-A-Hei 2-223313 (JP, A) JP-A-63-195607 (JP, A) JP-A-61-114919 (JP, U) JP-A-58-66815 (JP, U)

Claims (1)

(57) [Claims] A blade that rotates along the outer periphery of the insulated wire; a peeling tool that peels off the coating of the insulated wire by rotation of the blade; And a dust receiving device for rotating the device and collecting the stripped coating dust.