JP2720239B2 - Insulator contamination removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing soiling of an insulator, and more particularly to an apparatus for removing soiling by cleaning a cap of the insulator while moving along the insulator.

[0002]

2. Description of the Related Art Conventionally, as this type of insulator contamination removing apparatus, there is known an apparatus disclosed in Japanese Patent Application Laid-Open No. 63-39409.

In this publication, a substantially U-shaped cleaning arm provided with brushes on upper and lower surfaces is supported so as to be able to advance and retreat in a horizontal direction, and the cleaning arm is rotatable about an axis of an opening. It is composed. Then, when cleaning the insulator, the cleaning arm is inserted from the direction of the U-shaped opening toward the small-diameter portion of the insulator, and the position of the axis of the opening in the cleaning arm coincides with the axis of the insulator. Then, the cleaning arm is rotated. When the cleaning arm rotates, the brushes provided on the upper and lower surfaces scrape the dirt adhered to the upper and lower surfaces of the cap portion of the insulator. When cleaning of one stage of the shade is completed, the cleaning arm is retracted, moved upward by one stage, and then inserted again between the insulators.

[0004]

As described above, when the cleaning is performed by moving the brush when rotating, if the axis of rotation of the brush does not coincide with the axis of the insulator, an unwiped portion is generated. Would. Although it takes time to control the alignment of the shaft center in order to increase the accuracy, in the above-described conventional apparatus for removing soiling of insulators, it is necessary to perform the alignment by removing and inserting the cleaning arm each time the cap is washed one step at a time. In addition, there is a problem that it takes time to wash several shades.

[0005] Another problem is that the stroke for inserting and removing the cleaning arm into and out of a fixed position is large, so that it must be mechanically large. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an insulator fouling removal apparatus capable of shortening the cleaning time by reducing the time required for axial center alignment and reducing the size of the mechanism. Aim.

[0006]

Means for Solving the Problems In order to achieve the above object, the present invention provides an apparatus mounting mechanism for mounting an elevating drive shaft parallel to the insulator axial direction between both ends of the insulator, and moving along the elevating drive shaft A table moving mechanism, a turntable surrounding the entire circumference or a part of the insulator shade from the outer circumference, and a turntable mounted on the table moving mechanism so as to be rotatable around the axis of the insulator, and a turntable outside the insulator. And a cleaning mechanism in which a cleaning brush is mounted so as to be able to advance and retreat from the inside toward the inside.

[0007]

In order to remove the stain by the insulator removing device of the present invention, first, both ends of the lifting drive shaft are attached to the upper and lower ends of the insulator by the device attaching mechanism. As a result, the lifting drive shaft is mounted in parallel with the axial direction of the insulator, and the fouling removal device is fixed. Next, the table moving mechanism is driven to move the turntable along the elevating drive shaft and hold the turntable at a predetermined position. Thus, the turntable attached to the lifting drive shaft is held at a predetermined position between the insulator caps having a plurality of caps. When the cleaning mechanism provided on the turntable is driven, the cleaning brush directed from the outside to the inside of the insulator advances between the shades of the insulator at a predetermined stage and comes into contact with the upper or lower surface of the shade of the insulator. The turntable surrounds the entire circumference or a part of the insulator cap from the outer circumference, and the cleaning brush is attached to the turntable so that the cleaning brush can be moved forward and backward from the outer side to the inner side in the radial direction of the insulator on the outer side of the insulator. Further, the base of the driven base is attached so as to be rotatable about the axis of the insulator as a rotation center. Therefore, when the turntable is rotated about the axis of the insulator as a rotation center, the cleaning brush cleans the peripheral surface of the insulator at a predetermined step. Next, the cleaning mechanism is driven again to retract the cleaning brush to the outside of the shade. Then, by driving the table moving mechanism, the turntable is moved to the next stage of the insulator, and the cleaning brush is advanced again, the turntable is turned, and the cleaning brush is retreated, so that the gap between the insulator shades is repeated. Clean sequentially.

That is, since the turntable sequentially moves along the lifting drive shaft fixed to the upper and lower ends of the insulator, once the alignment of the axis of the turntable is performed, the alignment state of the axis is maintained. You can move around Kasama. By moving the cleaning brush by the depth of the shade, the gap between the shades can be moved.

[0009]

As described above, according to the present invention, the cleaning brush is fixed to both ends of the insulator by the device attaching mechanism and attached parallel to the axial direction of the insulator, and the alignment state of the axis of the turntable is maintained. Since the can move between the gaps, it is possible to provide an insulator fouling removal apparatus capable of greatly reducing the control time required for the alignment of the axis. Further, since the turntable can be moved between the next sheds only by retracting the cleaning brush to the outer side in the radial direction of the insulator shed, the size of the apparatus can be reduced and the contamination can be quickly removed.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a state in which an insulator contamination removing apparatus according to one embodiment of the present invention is installed on an insulator.

In this embodiment, an example will be described in which an insulator 300 having an 18-stage cap 301 and having mounting brackets 302 and 303 at its upper and lower ends is soiled and removed. 1 and 2, a pair of parallel guide shafts 105
a, 105b, each support plate 103a, 1
04a is fixed, and the support plates 103a, 104
Horizontal arms 103 and 104 extend from a. At the ends of the horizontal arms 103 and 104, a parallel chuck 1 is provided.
Nos. 01 and 102 are attached, and the fixtures 302 and 303 are gripped and fixed. This support plate 103a
(104a), the horizontal arm 103 (104) and the parallel chuck 101 (102) constitute the device mounting mechanism in claim 1. Also, both guide shafts 1
An elevating drive shaft 106 having an external thread is rotatably disposed between the inner shaft 05a and the outer shaft 105b. Elevating drive shaft 10
Reference numeral 6 is connected to a drive shaft 107a of a lifting / lowering motor 107 disposed on the upper surface of the upper support plate 103a. The cleaning unit 200 is attached to the lifting drive shaft 106 between the support plates 103a and 104a.
The base end of the cleaning unit 200 is a driven base 201, and three through holes are formed in the base of the driving base 201, and the lifting drive shaft 10 is formed on the inner peripheral surface of the center through hole.
A female screw is formed to be screwed with the guide shaft 6. Both guide shafts 105a and 105b slidably pass through the through holes on both sides. As a result, when the elevating motor 107 is driven, the elevating drive shaft 106 is rotated, and the driven base 201 is rotated.
Is guided by both guide shafts 105a and 105b to be able to move up and down. These lifting motors 10
7. The table moving mechanism 100 is constituted by the lifting drive shaft 106 and the driven base 201.

The driven base 201 is provided with a table 201 a extending in the horizontal direction. The table part 201a extends horizontally, and a circular hole 201b into which the insulator 300 can be inserted is formed at the tip end side. The circular hole 201b has a two-piece structure by bolt-on, and the tip half can be removed by removing the bolt. Also, the circular hole 201b
A plurality of rolls 201c with flanges arranged at regular intervals are provided on the upper surface side near the periphery of the roll, and a part of a donut shape is cut off on the roll 201c to form a substantially semicircular turn. A table 203 is rotatably mounted.

As shown in FIG. 3, the table unit 201 a
The turning motor 202 is provided on the upper surface of the driven base 201 side.
The small gear 202b is fixed to the rotation shaft 202a, and the small gear 202b is attached to the turntable 2
03 engages with a rack 203a formed on the outer periphery of the outer periphery 03. Thus, when the turning motor 202 is driven, the turntable 203 constitutes a table rotating mechanism that rotates on the table 201a around the center of the donut shape.

The turntable 203 is located on the upper surface of the turntable 203 near the cut ends.
A cleaning mechanism is provided opposite to a position where the center of the image is point-symmetrical. The cleaning mechanism includes an air cylinder mounted on the turntable 203 via tilting portions 206a and 206b that can be tilted up and down, slide tables 204a and 204b connected to a plunger of the air cylinder, and slides by expansion and contraction of the plunger. Slide table 20
4a and 204b are provided. The motors 20 are provided on the slide tables 204a and 204b, respectively.
5a1, 205b1 and their motors 205a1, 205
The brush bodies 205a and 205b connected to the rotating shafts 205a2 and 205b2 of b1 are attached to be rotatable. At the tips of the brush bodies 205a and 205b, there are provided cleaning brushes 205a3 and 205b3 which enter into the gap between the insulators and scrape off the dirt attached to the upper and lower surfaces of the shades. With this cleaning mechanism, the cleaning brushes 205a3 and 205b3 can be moved into and out of the gap between the insulators by the air cylinder.
The cleaning is enabled by the rotation of the drive 205b1. In addition, since the slide tables 204a and 204b can be tilted up and down by the tilting portions 206a and 206b, even if there is any obstacle when the cleaning brushes 205a3 and 205b3 enter the gap between the insulators, the slide tables 204a and 204b are moved up and down. It is designed to tilt down and advance to the deep part of Kasama. A nozzle for spraying a polishing solvent for cleaning is attached near the rotating brushes 205a3 and 205b3. The other ends of both nozzles are integrated with a supply header 208 so that the polishing solvent is press-fitted from a pressure pump 209. It has become.

Next, the operation of this embodiment having the above configuration will be described. When cleaning insulators, use insulator 300
Of the parallel chucks 101 and 10
Attach 2. At this time, the tip of the table part 201a is removed, and the insulator 3 is opened in a state where the circular hole 201b is opened.
Approach 00. When the parallel chucks 101 and 102 are brought close to a position where the mounting brackets 302 and 303 can be sandwiched, the semicircular portion of the circular hole 201b surrounds a half circumference of the shade 301, and the parallel chucks 101 are aligned with each other so that their axes are aligned. , 102 are closed. At this time, the holding portions of the parallel chucks 101 and 102 are formed in a “<” shape with the narrow angle portions facing inward, and the holding portions 302 and 303 whose outer circumferences are circular are merely sandwiched between the holding portions. A predetermined alignment can be performed with respect to the axis of the mounting brackets 302 and 303, and the alignment with the circular hole 201b can also be automatically performed. Parallel chuck 1
By sufficiently closing 01 and 102, the soil removal device is fixed to the insulator 300. Next, the table unit 20
Attachment is made such that the detached tip in 1a is sandwiched from the opposite side of the insulator 300.

After the fixing of the soil removal device is completed, the cleaning is started as shown in FIG. First, the lifting motor 1
07 is driven to rotate the elevating drive shaft 106, and the driven base 201 to which the male screw of the elevating drive shaft 106 is screwed is lowered along the guide shafts 105a and 105b to the lowermost insulator position. Here, the insulator position is defined by rotating brushes 205a3 and 205b3 below the shade portion of the insulator.
Means the height at which the upper surface contacts.

The turning motor 202 is driven at the lowermost position to move the turntable 203 engaged with the small gear 202b of the rotating shaft 202a to the initial position. The initial position refers to a position where the opening direction in the turntable 203 faces the side opposite to the guide shaft 105. Further, the slide tables 204a and 204b are retracted to the end. Note that the retreat here refers to the movement of the turntable 203 in the outer peripheral side direction.

After each moving mechanism is set in the initial position state as described above, the turning motor 202 is rotated in the reverse direction, and the turntable 203 is rotated in the clockwise direction by 90 degrees. In this position, the slide table 204a
The slide table 204b is moved to a position closest to both the guide shafts 105a and 105b while the slide table 204b is moved to the side opposite to the guide shaft 105 with 1 therebetween.

Next, the rotating brushes 205a3, 205b3
The slide tables 204a and 204b are moved forward until the tip of the slider abuts on the innermost part between the shades 301 of the insulator 300.
When compressed air of a predetermined pressure is supplied to the air cylinder, the rotating brushes 205a3 and 205b3 advance to the innermost portion of the shade 301 and come into contact therewith, and the slide tables 204a and 204b
Stops. Slide table 204a for a predetermined distance,
When the 204b advances, the pressurizing pump 209 is started to rotate the rotary brush 205a from the tips of the nozzles 207a and 207b.
At the same time, the polishing solvent is discharged toward the third brush 205b3 and the motors 205a1 and 205b1 are started to rotate the rotary brushes 205a3 and 205b3.

When the rotating brushes 205a3 and 205b3 start rotating, the turning motor 202 is driven.
The turntable 203 is rotated around the insulator 300. While the turntable 203 rotates in this manner, the brush portions of the rotating brushes 205a3 and 205b3 are rubbed together with the polishing solvent while dissolving the stains attached to the upper and lower surfaces of the shade 301, so that the insulator 300 is cleaned.

When the turntable 203 rotates 180 degrees, the rotation of the turning motor 202 stops. By the rotation of 180 degrees, the rotating brush 205a3 initially rotates the rotating brush 20a.
5b3 and the rotating brush 2
Since 05b3 initially rotates to the position where the rotary brush 205a3 was located, the shade 301 has been cleaned over the entire circumference.

At this position, the motors 205a1 and 205b
1 is stopped to stop the rotation of the rotary brushes 205a3 and 205b3, and the pressure pump 209 is also stopped to stop the discharge of the polishing solvent. Further, the slide table 20
4a, 204b, the rotating brush 205a
The brush cleaning portions 205 a and 205 b move away from the insulator 300, and the brush cleaning units 205 a and 205 b move away from the insulator 301.

In this state, when the turning motor 202 is driven to rotate the turntable 203 in the reverse direction by 90 degrees, the turntable 203 is almost returned to the initial position, and when returning to the initial position, whether the cap 301 just cleaned is the uppermost one. Judge. Whether or not it is the uppermost stage may be determined based on the number of movements, or may be determined by detecting the presence or absence of the shade 301 with a limit switch or a photoelectric switch. If it is the top one, the cleaning is finished. If it is not the top one, the elevating motor 107 is driven to drive the elevating drive shaft 1
06 is rotated by a predetermined amount to raise the driven base 201 by one stage of the shade, and then cleaning is started in the same manner as described above.

In the embodiment described above, when the slide table is advanced, the pressure of the compressed air supplied to the air cylinder is adjusted, and the tip of the rotating brush is brought into contact with the deepest portion between the caps to adjust the distance. I have. In contrast,
FIG. 6 shows a modification in which distance adjustment is performed using a sensor. The slide tables 204a and 204b are configured to be driven by motors 204a1 and 204b1 to move forward and backward.
Above 5b3, micro switches 204a2, 204
The detection brushes 204a3 and 204b3 of b2 are arranged in parallel, and the rotating brushes 205a3 and 205b3 are
01 when the detection rod 204 is inserted for a predetermined length.
The tips of a3 and 204b3 are in contact with the peripheral edge of the insulator 301.

In such a configuration, the slide table 2
The distances are adjusted by monitoring the detection states of the micro switches 204a2 and 204b2 when the 04a and 204b are advanced, and stopping the motors 204a1 and 204b1 when the conduction state of the micro switches 204a2 and 204b2 changes. In the above-described embodiment, the slide table advances and retreats in the radial direction. However, the slide table may be configured to rotate in a horizontal plane so that the distal end can advance and retreat in and out of the radial direction. . In addition, the tip of the table 201a is made detachable, and is temporarily removed at the time of mounting, but is fixed again at the time of cleaning. However, in reality, the turntable 203 is sufficiently supported on the table 201a. There is no hindrance to cleaning even without the installation. Further, in the present embodiment, the case where the insulator is disposed in the vertical direction is described, but the cleaning can be similarly performed even when the insulator is disposed in the horizontal direction or the oblique direction. .

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which an insulator contamination removing apparatus according to one embodiment of the present invention is mounted on an insulator tower.

FIG. 2 is a top view of the apparatus for removing contamination of an insulator.

FIG. 3 is an enlarged side view of the insulator fouling removal device.

FIG. 4 is a front view of the device for removing contamination of an insulator.

FIG. 5 is a diagram showing a cleaning procedure by the insulator removal device.

FIG. 6 is a diagram showing a modification of the slide table.

[Explanation of symbols]

 Reference Signs List 100 base unit 200 cleaning unit 201 driven base 201a table part 201b circular hole 201c roll 202 turning motor 203 turn table 204a, 204b slide table 204a2, 204b2 micro switch 204a3, 204b3 Detecting rods 205a, 205b Brush cleaning parts 205a1, 205b1 Motors 205a2, 205b2 Rotating shafts 205a3, 205b3 Rotating brushes 300 Insulator tower 301 Insulator

Continuation of the front page (56) References JP-A-2-177221 (JP, A) JP-B-58-54447 (JP, B2) JP-B-49-23673 (JP, B1) JP-B-55-38014 (JP, B1) , Y2)

Claims (1)

(57) [Claims] [Claim 1] Insert the cleaning brush between insulator the shade and shade having a plurality of sheds between the ends, after performing cleaning by rotating in the circumferential direction, the other by extracting the cleaning brush In a device for removing soiling of an insulator, which moves to a gap between the insulators , the insulator is lifted in parallel to the axial direction of the insulator across both ends of the insulator.
A device mounting mechanism for mounting the lowering drive shaft, a table moving mechanism that moves along the raising and lowering drive shaft, and surrounding the entire circumference or a part of the insulator cap from the outer circumference;
Rotate the cable moving mechanism around the axis of the insulator
A turntable mounted on the turntable, from the outside of the insulator toward the inside of the insulator.
A device for removing soiling of an insulator , comprising: a cleaning mechanism in which a cleaning brush is mounted so as to be able to move forward and backward.