JP3282936B2 - Insulator contamination removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention is a <br/> shall relates to a porcelain foul equipment of for removing contaminants adhered to the outer surface of the insulator.

[0002]

2. Description of the Related Art As a conventional apparatus for removing contamination of an insulator of this type, there has been known, for example, one having a configuration as disclosed in Japanese Utility Model Laid-Open No. 5-79823. In this conventional device, the rotating brush is disposed between the cap portions of the insulator so as to extend tangentially to the outer peripheral surface of the insulator. In this state,
The rotating brush is rotated in one direction by the motor, and the tip of the brush portion comes into contact with the front surface and the back surface of the adjacent cap portion to remove contaminants adhering to those surfaces.

[0003]

However, in this conventional insulator fouling removing apparatus, the rotating brush is rotated in one direction while being arranged between the cap portions of the insulator. For this reason, of the outer peripheral surface and the inner peripheral surface of the annular insulating fold portion protruding from the back surface of the insulator cap portion, one of the outer peripheral surfaces located on the upper side in the rotating direction of the rotating brush is:
The tips of the brush portions are sufficiently in contact with each other, so that the contaminants can be effectively removed. On the other hand, on the other peripheral surface located on the lower side in the rotating direction of the rotating brush, there is a problem that the contaminant cannot be effectively removed because the tip of the brush portion does not sufficiently contact.

The present invention has been made by paying attention to such problems existing in the conventional technology. The purpose is to prevent the occurrence of unevenness in the removal of contaminants on the outer and inner peripheral surfaces of the insulating fold that protrudes from the back surface of the insulator cap, and remove contaminants adhering to the outer surface of the insulator. to provide a foul equipment of insulators can be removed uniformly.

[0005]

Means for Solving the Problems To achieve the above object, according to the invention of the insulator fouling removing apparatus according to claim 1, a frame rotatably mounted around the insulator and a cap portion of the insulator A plurality of brushes are provided along the arrangement direction of the brushes, each brush being rotatably supported on a frame so as to enter between a pair of adjacent cap portions and to contact the outer surface of the insulator, and each brush being an insulator. A first rotating means for rotating the frame so as to make contact with the same portion of the outer surface at least twice, and a second rotating means for rotating each brush while changing its rotating direction during rotation of the frame ; Same outer surface
Where each brush has at least one
It is configured to contact each time .

According to the second aspect of the present invention, the frame rotatably mounted around the insulator and the arrangement of the cap portion of the insulator are provided.
A plurality of brushes are provided along the direction, and a pair of brushes are rotatably supported on a frame so that each pair enters between a pair of adjacent cap portions and comes into contact with the outer surface of the insulator. First rotating means for rotating the frame around the insulator at least once so as to make contact with the same portion at least once, and sliding the brushes against the outer surface of the insulator during rotation of the frame so that the sliding directions are different from each other. And a second rotating means for rotating.

According to a third aspect of the present invention, in the apparatus for removing fouling of the insulator according to the first aspect, the first rotating means rotates the frame by one half rotation in one direction and then by one rotation in the other direction . /> Rotation and half a rotation again in one direction.
The rotating means is configured to change the rotating direction of the brush in conjunction with the switching of the rotating direction of the first rotating means.

[0008] In the invention described in claim 4 is the insulator foul apparatus according to claim 1 or 2, wherein each bra <br/> sheet is arranged therein at the arrangement pitch and the same pitch of the cap portion Is what it is.

According to a fifth aspect of the present invention, in the insulator fouling removing apparatus according to the fourth aspect, the plurality of brushes disposed along the arrangement direction of the insulator cap portions are adjacent by the second rotating means. The brushes are connected so as to be alternately rotated in opposite directions.

According to a sixth aspect of the present invention, in the apparatus for removing soiling of an insulator according to the first or second aspect, each of the brushes has an axis bent with respect to a rotation axis of the second rotation means. Connected via a possible elastic coupling.

[0011]

[0012]

According to the first and third aspects of the present invention, a frame supporting a plurality of brushes arranged along the arrangement direction of the insulator caps is rotatably mounted around the insulator. In this state, each brush enters between a pair of adjacent cap portions and comes into contact with the outer surface of the insulator, and the frame is rotated by the first rotating means so that each brush contacts the same portion of the outer surface of the insulator at least twice. Is done. While the frame is rotating, the brushes are rotated by the second rotating means to remove contaminants adhering to the outer surface of the insulator. At this time, the rotation direction of each brush is changed, and the same position on the outer surface of the insulator is
Brushes are contacted at least once in different sliding directions
Therefore, the tips of the brushes evenly contact the outer and inner peripheral surfaces of the insulating folds protruding from the back surface of the insulator cap, and the peripheral surfaces have uneven removal of contaminants. Is prevented from occurring.

According to the second aspect of the present invention, a plurality of
With the frame supporting the brushes installed rotatably around the insulator, the brushes are placed between a pair of shades adjacent to each other.
And the frame is rotated once around the insulator by the first rotating means, so that each of the plurality of brushes comes into contact with the same location on the outer surface of the insulator at least once. While the frame is rotating, the brushes are rotated by the second rotating means to remove contaminants adhering to the outer surface of the insulator. At this time, the brushes are rotated so that the sliding directions with respect to the outer surface of the insulator are different from each other. Are evenly touched,
The occurrence of unevenness in removing contaminants on those peripheral surfaces is prevented.

In the invention described in claim 4, each of the plurality of brushes disposed along the direction of arrangement of the cap portions of the insulator,
It is arranged between each cap part of the insulator. In the invention described in claim 5, the load torque acting on each brush is canceled as a whole by the contact with the insulator. Therefore, the fouling removal device is operated stably.

In the invention described in claim 6, the direction of each brush can be changed .

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment of a device and a method for removing soiling of an insulator according to the present invention will be described in detail with reference to FIGS.

As shown in FIGS. 1 to 3, a frame 1 is rotatably mounted around a long trunk insulator 2 having a plurality of cap portions 2a, and a pair of thin plate-like support arms 1a extending in an arc shape.
And a long support plate 1b fixed between the base ends of the support arms 1a. The first rotation mechanism 3 as first rotation means is mounted on both support arms 1 a of the frame 1, and rotates the frame 1 along the outer periphery of the insulator 2.

A pair of rotating shafts 4 in the first rotating mechanism 3 are rotatably supported at the base end of each support arm 1a via a bearing sleeve 5. The pair of drive rollers 6 are fixed to the ends of the respective rotating shafts 4 by screws 7, and a small-diameter portion 6 a at the distal end, a large-diameter portion 6 b at the middle, and a small-diameter portion 6 c at the proximal end are formed on the outer periphery thereof. A pair of first motors 8 whose rotation directions can be switched are attached to the end surfaces of the bearing sleeves 5 via brackets 9, and their motor shafts are connected to the rotation shafts 4.

As shown in FIG. 5, each drive roller 6 is applied between a pair of adjacent cap portions 2a at the center of the insulator 2 in the axial direction. Thus, the intermediate large-diameter portion 6 b is inserted between the pair of cap portion 2a of the driving roller 6, the front-end small-diameter portion 6 a and a proximal smaller diameter portion 6 c each cap portion 2
a. In this state, both drive rollers 6
Is rotated by the first motor 8 and the frame 1 is
Are relatively rotated around.

As shown in FIGS. 1 to 3, a pair of rotary levers 10 are rotatably supported at the distal ends of the support arms 1a via pins 11, and an operation piece 10a is provided on the outside of the base. Is protruding. The pair of support shafts 12 are rotatably supported at the distal ends of the respective rotating levers 10, and pinching rollers 13 are fixed to the ends by screws 14.
Then, similarly to the drive roller 6, the nipping roller 1
A small outer diameter portion 13a, an intermediate large diameter portion 13b, and a proximal small diameter portion 13c are also formed on the outer periphery of the base 3.

A pair of mounting plates 15 are provided for each of the support arms 1a.
Is fixed to the outer surface. A pair of rods 16 are rotatably mounted on each mounting plate 15 via fulcrum pins 17,
The distal ends are connected via a fulcrum pin 18 to the operation piece 10a of each rotation lever 10 so as to be relatively rotatable and slidable. The springs 19 are respectively externally inserted into the rods 16 and urge the rotating lever 10 toward the center of the frame 1.

Accordingly, each of the holding rollers 13 is pressed between a pair of adjacent cap portions 2a on the insulator 2 at a position corresponding to the driving roller 6. Then, similarly to the drive roller 6, the intermediate large-diameter portion 13b of the sandwiching roller 13 is inserted between the pair of cap portions 2a,
a and the proximal small diameter portion 13c are brought into contact with the outer peripheral surface of each cap portion 2a. In this state, the frame 1 is rotatably mounted on the outer periphery of the insulator 2 by the four rollers 6 and 13.

As shown in FIGS. 1 and 6, a pair of air cylinders 20, which also serve as grip bars, are mounted on the respective mounting plates 15, and a holding body 21 is fixed to the tip of the piston rod. When the air cylinder 20 is protruded in a state in which each of the holding rollers 13 is disposed at an inner position in contact with the outer peripheral surface of the insulator 2, the holding body 21 engages with the operation piece 10 a of the rotating lever 10. And the pinching roller 1
3 is held in the same position.

A pair of release operation handles 22 are rotatably mounted on the outer periphery of each of the air cylinders 20 via mounting brackets 23. A connecting cable 24 composed of a pair of electric protection cables is stretched between the supporting bracket 25 and the mounting bracket 23 on each mounting plate 15, and both ends of the core wire 24 a are connected to the operation handle 22 and the rotating lever 10. ing. Then, when the air cylinder 20 is contracted and the outer periphery of the cylinder 20 is gripped and the operation handle 22 is rotated from the solid line position to the chain line position in FIG. 10 is rotated to the outside of the frame 1, and the holding roller 13 is separated from the outer peripheral surface of the insulator 2.

As shown in FIGS. 1, 2 and 4, a plurality of rotating brushes 26 are provided on the support plate 1b of the frame 1 along the direction in which the caps 2a of the insulator 2 are arranged. They are arranged at the same pitch as the arrangement pitch. When the frame 1 is rotatably mounted on the outer periphery of the insulator 2, each rotating brush 26 enters between a pair of adjacent cap portions 2a, and the tip of the brush portion is the front and back surfaces of the pair of cap portions 2a. Contact each other. A second rotating mechanism 27 as a second rotating means is mounted on the support plate 1b of the frame 1 and simultaneously rotates the rotating brushes 26 in contact with the cap 2a of the insulator 2.

The plurality of rotating shafts 28 of the second rotating mechanism 27 are connected to the frame 1 via a pair of bearings 29.
Are rotatably supported at predetermined intervals. In addition, the end of each rotating shaft 28 is provided with the rotating brush 2.
6 is connected via a resilient coupling 30 capable of bending the axis so as to be tiltable. An annular insulating fold 2b protrudes from the back surface of the cap 2a of the insulator 2, and even if the outer surface of the cap 2a is complicatedly changed in shape, the rotary brush 2
6 comes into contact following the shape change.

A plurality of gears 31 are fixed to each of the rotating shafts 28, and six adjacent gears 31 are meshed with each other in order so that six adjacent rotating shafts 28 are rotated as a set. A pair of second motors 32 whose rotation directions can be switched are attached to the support plate 1b of the frame 1 via a plurality of spacers 34 by a plurality of bolts 33, and the motor shafts of the two rotation shafts 28 Intermediate rotation shaft 28 of
It is connected to. And each rotating brush 26 is the insulator 2
In a state of contact with the cap portion 2a, each set of rotating shafts 28 is rotated by the second motor 32 via the gear 31, and the adjacent rotating brushes 26 of each set are alternately rotated in opposite directions.

As shown in FIGS. 1, 2 and 4, a pair of cable covers 35 are mounted on the respective mounting plates 15,
The supporting portion of the spring 19 and the connecting portion of the connecting cable 24 are covered. The gear cover 36 is provided on the support plate 1b of the frame 1.
And covers the meshing portion of each gear 31 and the outer periphery of the second motor 32.

The liquid tank 37 is attached to the outer surface of the gear cover 36, and contains a cleaning liquid inside. The pair of spray nozzles 38 are disposed at predetermined intervals on the outer surface of the gear cover 36 so as to face the cap portion 2 a of the insulator 2, and are connected to the liquid tank 37. The air supply port 39 is formed in the support plate 1b of the frame 1 and is connected to each spray nozzle 38. Solenoid valve 4
Numeral 0 is attached to the support arm 1a of the frame 1, and controls the supply of air to the air supply port 39 and the air cylinder 20. When air is supplied to each spray nozzle 38 through the air supply port 39 by switching the solenoid valve 40, the cleaning liquid in the liquid tank 37 is sprayed from the spray nozzle 20 toward the insulator 2.

The control device 41 is disposed on the outer surface of the gear cover 36 and controls the operations of the first rotation mechanism 3, the second rotation mechanism 27, and the solenoid valve 40. And insulator 2
When removing the contaminants on the outer surface of the control unit 41, the control device 41 switches the rotation direction of the first motor 8 of the first rotation mechanism 3, and first rotates the frame 1 approximately 180 degrees counterclockwise in FIG. Next, it is rotated about 360 degrees clockwise and again rotated about 180 degrees counterclockwise. As a result, each rotating brush 26 comes into contact with the same location on the outer surface of the insulator 2 at least twice. Further, the control device 41 switches the rotation direction of the second motor 32 of the second rotation mechanism 27 in conjunction with the switching of the rotation direction of the first motor 8, and changes the rotation direction of each rotating brush 26 clockwise in FIG. Turn counterclockwise.

In this embodiment, as shown in FIG. 5, each of the drive rollers 6 has a hollow roller body 42 made of a rigid metal material such as aluminum and an outer peripheral surface of the roller body 42. And a coating layer 43 made of an elastic material having a high coefficient of friction such as coated urethane rubber. Thereby, the driving roller 6
The weight of the insulator 2 is reduced, the possibility of damaging the outer surface of the insulator 2 is prevented, and the possibility of slipping in the state of contact with the insulator 2 is prevented. Like the drive roller 6, each gripping roller 13 is also composed of a roller body 42 and a coating layer 43.

Next, a method for removing contaminants adhering to the outer surface of the insulator by using the apparatus for removing contaminants of the insulator configured as described above will be described. By the way, at the time of using this soil removal device, as shown by a chain line in FIG. 1, the operation levers 22 are operated to rotate the rotation levers 10 to the outer positions, respectively, to open the space between the support arms 1a of the frame 1. In this state, insert the insulator 2 between the support arms 1a,
At the center of the insulator 2 in the axial direction of the two drive rollers 6,
A plurality of rotating brushes 26 are respectively advanced between the cap portions 2a of the insulator 2 while being engaged between a pair of adjacent cap portions 2a.
To enter .

Thereafter, when the operation of both operating handles 22 is released, the rotating lever 10 is rotated to the inner position by the urging force of the spring 19, and the two holding rollers 13 are adjacent to each other at the position corresponding to the driving roller 6. A pair of caps 2a
Engaged between. In this state, the two air cylinders 20 are protruded by switching the solenoid valve 40, and the holding members 21 are respectively engaged with the operation pieces 10a of the rotary lever 10 as shown by the chain lines in FIG. Is held in the engagement position. Thereby, the frame 1 is rotatably mounted around the insulator 2.

When the apparatus is started by operating a switch (not shown) in the mounted state of the frame 1, the first
The drive roller 6 is rotated by the first motor 8 of the rotation mechanism 3, and the frame 1 is rotated along the outer peripheral surface of the insulator 2.
At the same time, the rotating brushes 26 are simultaneously rotated by the second motor 32 of the second rotating mechanism 27 via the gear 31. At this time, by switching the solenoid valve 40,
Air is supplied from the air supply port 39 to the spray nozzle 38, and the cleaning liquid in the liquid tank 37 is sprayed from the spray nozzle 20 toward the insulator 2. Thereby, the contaminants adhering to the outer surface of each cap portion 2a of the insulator 2 can be effectively removed.

At the time of removal of the contaminants, the rotation direction of the first motor 8 is switched under the control of the control device 41, and the frame 1 is first moved about 18 degrees in the counterclockwise direction in FIG.
It is rotated 0 degrees, then rotated about 360 degrees clockwise, and again rotated about 180 degrees counterclockwise. As a result, each of the rotating brushes 26 is at least two at the same location on the outer surface of the insulator 2.
As a result, the contaminants adhering to the outer surface of the insulator 2 are evenly and uniformly removed.

When removing the contaminants, the rotation direction of the second motor 32 is switched by the control of the control device 41 in conjunction with the switching of the rotation direction of the first motor 8. The direction is changed to clockwise and counterclockwise in FIG. As a result, the rotating brush 26 comes into contact with the same location on the outer surface of the insulator 2 at least once in different sliding directions. For this reason, when the rotating brush 26 is rotated clockwise in the figure, the tip of the brush portion effectively comes into contact with the outer peripheral surface 2b-1 of the insulating fold portion 2b projecting from the back surface of the cap portion 2a, and Surface 2b-1
Is mainly removed. On the other hand, the rotating brush 26
When the is rotated in the counterclockwise direction in the figure, the tip of the brush portion effectively contacts the inner peripheral surface 2b-2 of the insulating fold 2b, and the contaminants on the inner peripheral surface 2b-2 are concentrated. Removed. Therefore, it is possible to reliably prevent the occurrence of unevenness in the removal of contaminants on the outer peripheral surface 2b-1 and the inner peripheral surface 2b-2 of the insulating fold portion 2b, and to remove the contaminants adhering to the outer surface of the insulator 2. Can be uniformly removed without unevenness.

When removing the contaminants, a plurality of rotating brushes 26 arranged on the support plate 1b
1 are alternately rotated in opposite directions. For this reason, the direction of the force applied to each cap portion 2a of the insulator 2 by the rotation of each rotary brush 26 alternately reverses and cancels each other. In other words, each brush 26 comes into contact with the cap portion 2a to cancel each brush. The reaction acting on 26, that is, the load torque is offset, and the possibility that a moving force in one direction acts on the entire apparatus can be prevented. Therefore, this device can always be stably rotated around the insulator 2, and a uniform cleaning operation can always be ensured.

Moreover, since each rotating brush 26 is connected to the rotating shaft 28 via the elastic coupling 30, even if the outer surface of the cap portion 2a of the insulator 2 is complicatedly changed by the insulating fold 2b or the like. , The direction of the rotating brush 26 is easily changed, and the rotating brush 26 follows the shape change and is surely brought into contact. Therefore, the contaminants can be effectively removed over the details of the outer surface of the insulator 2.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 8 and 9, in the second embodiment, the support arm 1a of the frame 1
A pair of support plates 1b are fixed between the ends of the adjacent support arms 1a. Then, a plurality of rotating brushes 26 are placed on each support plate 1b, respectively.
They are arranged at the same pitch as the arrangement pitch of the cap portions 2a along the arrangement direction of "a". When the frame 1 is rotatably mounted on the outer periphery of the insulator 2, the rotating brushes 26 on each support plate 1 b are arranged to be inserted one by one between a pair of adjacent cap portions 2 a. . As a result, between the pair of adjacent cap portions 2a, the rotating brushes 26 are arranged in a pair at a distance of approximately 180 degrees from each other.

The second rotating mechanism 27 is mounted on each of the support plates 1b, and simultaneously rotates the corresponding rotating brushes 26 on the corresponding side. In this case, the adjacent rotating brushes 26 are alternately rotated in opposite directions on each support plate 1b as in the first embodiment.

In the second embodiment, when removing contaminants on the outer surface of the insulator 2, the frame 1 is rotated by about 360 degrees in either the clockwise direction or the counterclockwise direction in FIG. It is designed to be rotated. Thereby, each rotating brush 26 on each support plate 1b is brought into contact with the same location on the outer surface of the insulator 2 at least once. That is, the pair of rotating brushes 26 come into contact with the same location on the outer surface of the insulator 2 at least once.

At this time, in this embodiment, as shown in FIG. 9, a pair of rotary brushes 26 disposed between the same cap portions 2a are mutually connected by the second rotary mechanism 27 on each support plate 1b. They are rotated in the same direction (clockwise in the drawing). Thereby, between the same cap portion 2a,
One of the rotating brushes 26 (left side in the drawing) effectively contacts the outer peripheral surface 2b-1 of the insulating fold 2b protruding from the back surface of the cap portion 2a, and the other end (the right side in the drawing).
Of the rotating brush 26 has the tip of the insulating fold 2
b and effectively contacts the inner peripheral surface 2b-2.

That is, in the second embodiment, during the rotation of the frame 1, the pair of rotary brushes 26 rotate between the same cap portions 2a such that the sliding directions with respect to the outer surface of the insulator 2 are different from each other. Is done. As a result, the rotating brush 26 comes into contact with the same location on the outer surface of the insulator 2 at least once in different sliding directions.

Therefore, also in the second embodiment, similarly to the first embodiment, the outer peripheral surface 2b-1 and the inner peripheral surface 2b-2 of the insulating fold 2b projecting from the back surface of the cap 2a of the insulator 2 are provided.
It is possible to effectively remove contaminants from any of the peripheral surfaces, and it is possible to reliably prevent the occurrence of unevenness in removing contaminants on both the inner and outer peripheral surfaces of the insulating fold 2b.

In the second embodiment, the rotating brush 26
Are disposed between the pair of adjacent cap portions 2a of the insulator 2 in pairs. Therefore, while rotating the frame 1 around the insulator 2 one time without changing the rotation direction of the rotating brushes 26, the contaminants on the outer peripheral surface 2 b-1 of the insulating fold 2 b are removed by one rotating brush 26. While being able to be removed intensively, the other rotating brush 26 can also remove dirtily substances on the inner peripheral surface 2b-2 of the insulating fold 2b. Therefore, unlike the first embodiment, it is not necessary to switch the rotation direction of the frame 1 and the rotating brush 26 when removing the contaminated material, and the control for the rotation is simplified. In the second embodiment, other functions and effects are the same as those of the first embodiment.

The present invention is not limited to the configuration of each of the above embodiments, but can be embodied in the following modes. (1) A friction clutch is interposed between each rotating brush 26 and the gear 31 of the shaft, and when an excessive torque against rotation acts on each rotating brush 26, the friction clutch slips. The rotation brush 26 is configured to be allowed to stop. With this configuration, for example, when a foreign object enters between the rotating brush 26 and the insulator 2, excessive rotation of the rotating brush 26 is prevented, and damage to the rotating brush 26 and the insulator 2 can be prevented.

(2) The number of rotations of the stain removing device around the insulator 2 should be increased as compared with the above embodiment. (3) In the second rotation mechanism 27, one motor 32
So that the rotating brush 26 is rotated by the rotation.

(4) In the second embodiment, the insulator 2
FIG. 10 shows the arrangement of the rotating brush 26 with respect to FIG. In this case, a pair of rotating brushes 26 disposed between a pair of adjacent cap portions 2a of the insulator 2 are provided.
May be rotated in opposite directions.

[0049]

Since the present invention is configured as described above, it has the following effects. Claim 1
According to the third aspect of the present invention, the insulator caps are arranged along the arrangement direction of the caps.
The plurality of brushes did not cause uneven removal of contaminants on the outer peripheral surface and inner peripheral surface of the insulating fold that protruded from the back surface of the insulator cap, and removed contaminants adhering to the outer surface of the insulator. It can be uniformly removed.

According to the fourth aspect of the present invention, even if the insulator has a plurality of cap portions arranged, the plurality of brushes can be used for the insulator.
Contaminants adhering to the outer surface of each cap portion can be efficiently removed at the same time.

According to the fifth aspect of the present invention, the device can always be rotated stably around the insulator, and the contaminants adhering to the outer surface of each cap portion can be uniformly removed.

According to the sixth aspect of the present invention, the brush reliably contacts the outer surface of the insulator by following a complicated shape change,
Contaminants can be effectively removed over the details of the outer surface of the insulator.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a first embodiment of an insulator fouling removing apparatus embodying the present invention.

FIG. 2 is a side view of the stain removing device.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 1;

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 1;

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 1;

FIG. 6 is an enlarged partial cross-sectional view showing a cable connection configuration between a rotation lever for a holding roller and an operation handle for release.

FIG. 7 is a partially enlarged sectional view taken along line VII-VII of FIG. 2;

FIG. 8 is a schematic plan view showing a second embodiment of the soil removal apparatus.

FIG. 9 is a schematic front view showing an arrangement configuration of the rotating brush with respect to the insulator.

FIG. 10 is a schematic plan view showing another example of the arrangement of the rotating brushes in the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame, 2 ... Insulator, 2a ... Cap part, 2b ... Insulated pleat part, 3 ... First rotation mechanism as 1st rotation means, 6 ... Drive roller, 8 ... 1st motor, 10 ... Rotating lever, 13 ... Nipping roller, 19 ... Spring, 20 ... Air cylinder, 21 ... Holder, 22 ... Operation handle for release, 26 ... Rotating brush, 27 ... Second rotating mechanism as second rotating means, 28 ...
Rotary shaft, 30 ... elastic coupling, 31 ... gear, 32 ...
Second motor, 41 ... control device.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tsunezo Hirota 2-1367 Soga-cho, Chuo-ku, Chiba-shi, Chiba Chiba Thermal Power Station (72) Inventor Yukitaka Kamiya 1 Uchisaiwaicho, Chiyoda-ku, Tokyo 1-3-3 Tokyo Electric Power Co., Inc. (72) Inventor Takayoshi Kuri 2-56, Sudacho, Mizuho-ku, Nagoya Japan Insulator Co., Ltd. (72) Toshiaki Suzuki 2-56, Sudacho, Mizuho-ku, Nagoya No. Nippon Insulators Co., Ltd. (56) References JP-A-5-79823 (JP, U) JP-A-49-49499 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01B 17/52

Claims (6)

(57) [Claims] 1. A frame rotatably mounted around an insulator, and a plurality of frames are arranged along a direction in which the insulator caps are arranged. Brushes rotatably supported on a frame so as to make contact with the brush; first rotating means for rotating the frame so that each brush contacts the same location on the outer surface of the insulator at least twice; A second rotating means for rotating each brush while changing its rotating direction, and an outer surface of the insulator.
Each brush in a different sliding direction
An insulator fouling removal device configured to contact at least once . 2. A plurality of frames are provided along a direction in which a frame rotatably mounted around the insulator and a cap portion of the insulator are arranged.
One enters between a pair of adjacent caps and contacts the outer surface of the insulator
A brush rotatably supported on the frame such that, 1 a first rotating means for rotating around the insulator frame such that each brush is in contact at least once in the same position of the outer surface of the insulator, the frame A second rotating means for rotating each brush during rotation so that sliding directions with respect to the outer surface of the insulator are different from each other. 3. The first rotating means is configured to rotate the frame by one half turn in one direction, then by one turn in the other direction , and again by one half turn in one direction. The apparatus for removing soiling of an insulator according to claim 1, wherein the apparatus is configured to change the rotation direction of the brush in conjunction with the switching of the rotation direction of the first rotation means. Wherein said each brush, insulator fouling removal apparatus according to claim 1 or 2 are arranged at the arrangement pitch and the same pitch of the cap portion. 5. A plurality of brushes arranged along the direction of arrangement of the insulator cap portions are connected such that adjacent brushes are alternately rotated in opposite directions by a second rotating means. 2. The insulator fouling removal device according to claim 1. 6. The insulator removal apparatus according to claim 1, wherein each of the brushes is connected to a rotation shaft of the second rotation means via an elastic coupling whose axis can be bent .