JP3378682B2 - Insulator fouling 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 insulator fouling removal device for removing fouling substances attached to the outer surface of an insulator.

[0002]

2. Description of the Related Art In a conventional insulator decontamination device of this type, a plurality of rollers are supported on a frame, and the rollers are brought into contact with the outer surface of the insulator so that the frame can rotate around the insulator. Be attached to. Then, in the mounted state of this frame, by rotating an appropriate roller, the frame is rotated around the insulator. As a result, the brush supported on the frame is moved in contact with the outer surface of the insulator, and the contaminants attached to the outer surface of the insulator are removed.

[0003]

SUMMARY OF THE INVENTION However, in this conventional insulator fouling removal device, when the roller is made of a rigid material such as metal, when the roller contacts the outer surface of the insulator and is rotated. In addition, there is a risk of slipping between the outer surface of the insulator and damage to the outer surface of the insulator.
To prevent this, when the roller is made of an elastic material such as rubber, the frame is not placed at a fixed position with respect to the insulator due to the elastic deformation of the roller, and the contact state of the brush with the outer surface of the insulator fluctuates. Therefore, it was not possible to uniformly remove the contaminants.

The present invention has been made by paying attention to the problems existing in such conventional techniques. The purpose is to prevent the possibility that when the roller comes into contact with the outer surface of the insulator and is rotated, slippage between the roller and the outer surface of the insulator is caused, or the outer surface of the insulator is damaged. It is to provide a stain removing device.

Another object of the present invention is to prevent the roller from being deformed so that the frame can always be arranged at a fixed position with respect to the insulator, prevent the contact state of the brush from contacting the outer surface of the insulator from fluctuating, and prevent contamination. An object of the present invention is to provide an insulator fouling removal device capable of uniformly removing objects.

[0006]

In order to achieve the above object, in the invention of an insulator fouling removal device according to claim 1, a roller is provided between a pair of cap portions adjacent to each other in the axial direction of the insulator.
The roller is inserted between the pair of cap portions to engage with the roller.
Inserted intermediate large diameter part and the tip that contacts the outer peripheral surface of each cap
A roller main body made of a rigid material and a coating layer made of an elastic material having a high coefficient of friction coated on the outer peripheral surface of the roller body while forming the small end diameter portion and the small base end diameter portion. is there.

According to a second aspect of the present invention, in the insulator fouling removing device according to the first aspect, the roller body is made of aluminum.

[0008]

In the invention described in claim 1, each roller has
Is an intermediate large-diameter part that is inserted between a pair of caps and each cap
A small tip end and a small tip end are formed that contact the outer peripheral surface.
In addition, the roller body of each roller is made of a rigid material, and a coating layer made of an elastic material having a high friction coefficient is formed on the outer peripheral surface of the roller body. For this reason, each roller is placed adjacent to the insulator in the axial direction.
There is no possibility of slippage between the outer peripheral surface of the roller and the outer surface of the insulator when the roller is brought into contact with the outer surface of the insulator by being engaged between the pair of cap portions and being rotated. Further, there is no possibility that the outer surface of the insulator is damaged by the contact with the roller.

Further, the layer made of an elastic material formed on the outer peripheral surface of the roller body is thin by coating. Therefore, when the roller comes into contact with the outer surface of the insulator and is rotated, the rigidity of the roller body does not cause large elastic deformation of the roller, and the frame is always held at a constant position with respect to the outer surface of the insulator. It is rotated around the insulator. Therefore, the brush on the frame is brought into stable contact with the outer surface of the insulator.

In the second aspect of the invention, the weight of the roller is reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an insulator fouling removing device embodying the present invention will be described in detail below with reference to the drawings.
As shown in FIGS. 1 to 3, the frame 1 includes a plurality of cap portions 2a.
A pair of thin plate-shaped support arms 1a that are rotatably mounted around a long insulator 2 and that have an arc shape, and an elongated support plate that is fixed between the base end portions of both support arms 1a. 1b
It consists of and. The first rotation mechanism 3 as the first rotation means is mounted on both support arms 1a of the frame 1,
The frame 1 is rotated along the outer circumference of the insulator 2.

The pair of rotating shafts 4 of the first rotating mechanism 3 are rotatably supported by the base ends of the respective supporting arms 1a via bearing sleeves 5. The pair of drive rollers 6 are fixed to the ends of the rotary shafts 4 with screws 7, and a small tip small diameter portion 6a, an intermediate large diameter portion 6b, and a small proximal end diameter portion 6c are formed on the outer circumference thereof. A pair of first motors 8 whose rotational directions can be switched are attached to the end faces of the bearing sleeves 5 via brackets 9, and their motor shafts are connected to the rotary shafts 4.

Then, as shown in FIG. 5, each drive roller 6 is applied between a pair of adjacent cap portions 2a at the central portion 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
It contacts the outer peripheral surface of a. In this state, both drive rollers 6
Is rotated by the first motor 8 to move the frame 1 to the insulator 1
Is rotated relatively around.

As shown in FIGS. 1 to 3, a pair of rotating levers 10 are rotatably supported by the tip ends of the respective supporting arms 1a via pins 11, and the operation pieces 10a are provided outside the bases thereof. Is projected. The pair of support shafts 12 are rotatably supported by the tip end portions of the rotary levers 10, and the nipping rollers 13 are fixed to the end portions by screws 14.
Then, like the drive roller 6, the nip roller 1
Also on the outer periphery of 3, a tip small diameter portion 13a, an intermediate large diameter portion 13b and a base end small diameter portion 13c are formed.

A pair of mounting plates 15 are used for the support arms 1a.
It is fixed to the outer surface of. The pair of rods 16 is rotatably attached to each attachment plate 15 via a fulcrum pin 17,
The tip ends of these 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 externally inserted to the rods 16 respectively and urge the turning lever 10 toward the center of the frame 1.

As a result, each nipping roller 13 is pressed between the 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 holding roller 13 is inserted between the pair of cap portions 2a, and the tip small diameter portion 13 is formed.
a and the base end small diameter portion 13c are in contact with the outer peripheral surface of each cap portion 2a. In this state, the frame 1 is rotatably mounted on the outer circumference of the insulator 2 by the four rollers 6 and 13.

As shown in FIGS. 1 and 6, a pair of air cylinders 20 also serving as gripping rods are attached to the respective mounting plates 15, and a holding body 21 is fixed to the tip of the piston rod. Then, when the sandwiching roller 13 is arranged at the inner position where it comes into contact with the outer peripheral surface of the insulator 2, when the air cylinder 20 is projected, the holding body 21 engages with the operation piece 10a of the rotating lever 10. And then nip roller 1
3 is held in the same position.

A pair of releasing operation handles 22 are rotatably attached to the outer circumference of each of the air cylinders 20 via attachment fittings 23. A connecting cable 24 composed of a pair of electric-proof cables is stretched between the supporting metal fittings 25 and the mounting metal fittings 23 on each mounting plate 15, and both ends of their core wires 24a are connected to the operation handle 22 and the rotating lever 10. ing. Then, when the air cylinder 20 is contracted, the outer periphery of the cylinder 20 is gripped, and when the operation handle 22 is rotated from the solid line position in FIG. 1 to the chain line position, the rotation lever is provided via the core wire 24a of the connecting cable 24. 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 arrangement direction of the cap portions 2a of the insulator 2 along the arrangement direction. They are arranged at the same pitch as the arrangement pitch. Then, when the frame 1 is rotatably mounted on the outer periphery of the insulator 2, each rotary brush 26 enters between the pair of adjacent cap portions 2a, and the tips of the brush portions are the front and back surfaces of the pair of cap portions 2a. Contact each. The second rotating mechanism 27 as the second rotating means is mounted on the support plate 1b of the frame 1 and rotates all the rotating brushes 26 in a state of being in contact with the cap portion 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.
Is rotatably supported by the support plate 1b at predetermined intervals. The rotary brush 2 is attached to the end of each rotary shaft 28.
6 is tiltably connected via an elastic coupling 30 whose axis can be bent. Even if the annular insulating fold portion 2b is projected on the back surface of the cap portion 2a of the insulator 2 and the outer surface of the cap portion 2a is complicatedly changed, the rotating brush 2
6 follows the shape change and contacts.

A plurality of gears 31 are fixed to the respective rotary shafts 28, and the six adjacent gears 31 are meshed with each other in order so that the six adjacent rotary shafts 28 rotate as a set. The pair of second motors 32 that can switch the rotation direction are attached to the support plate 1b of the frame 1 through the plurality of spacers 34 by the plurality of bolts 33, and their motor shafts are included in the two sets of the rotation shafts 28. Middle rotation axis 28
Are linked to. And each rotating brush 26 is an insulator 2.
In the state of being in contact with the cap portion 2a, the rotating shafts 28 of each set are rotated by the second motor 32 via the gear 31, and the adjacent rotating brushes 26 of each set are alternately rotated in the opposite direction.

As shown in FIGS. 1, 2 and 4, a pair of cable covers 35 are attached to each of the mounting plates 15,
It covers the support portion of the spring 19 and the connecting portion of the connecting cable 24. The gear cover 36 is a support plate 1b of the frame 1.
Attached to each gear 31 and covers the outer periphery of the second motor 32.

The liquid tank 37 is attached to the outer surface of the gear cover 36, and the cleaning liquid is stored inside the liquid tank 37. The pair of spray nozzles 38 are arranged 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.

The solenoid valve 40 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. Then, by switching the solenoid valve 40, when air is supplied to each spray nozzle 38 through the air supply port 39, 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 rotating mechanism 3, the second rotating mechanism 27 and the solenoid valve 40. And insulator 2
When removing the contaminants on the outer surface of the control device 41, the control device 41 switches the rotation direction of the first motor 8 of the first rotation mechanism 3 to rotate the frame 1 in the counterclockwise direction of FIG. 1 by about 180 degrees. Then, it is rotated about 360 degrees clockwise and again about 180 degrees counterclockwise. As a result, each rotating brush 26 is brought into contact with the same portion of 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 sets the rotation direction of each rotary brush 26 to the clockwise direction in FIG. Turn counterclockwise.

Next, the main constituent parts of the present invention will be described. As shown in FIG. 5, each of the drive rollers 6 has a hollow roller body 42 made of a rigid metal material and an outer periphery of the roller body 42. The surface is coated with a coating layer 43 made of an elastic material having a high friction coefficient. Further, like the drive roller 6, each gripping roller 13 is also composed of a roller body 42 and a coating layer 43.

Aluminum is most suitable as the rigid metal material because it is lightweight and has rigidity. On the other hand, as the elastic material, urethane rubber, urethane resin, polyisoprene rubber, silicone rubber, etc. are suitable, and the outer peripheral surface of the roller body 42 is coated with these materials by spraying or baking to form the coating layer 43. There is. The thickness of the coating layer 43 is preferably set to 1.0 to 1.5 mm.

Next, a method for removing the contaminants attached to the outer surface of the insulator by using the insulator contamination removing device constructed as described above will be described. When the stain removing device is used, as shown by the chain line in FIG. 1, the rotating levers 10 are respectively rotated to the outer positions by operating the operation handles 22 to open the support arms 1a of the frame 1. In this state, insert the insulator 2 between the support arms 1a,
Both drive rollers 6 at the central portion in the axial direction of the insulator 2,
The plurality of rotating brushes 26 are caused to enter between the cap portions 2a of the insulator 2 while being engaged between the pair of cap portions 2a adjacent to each other.

After that, when the operation of both operation handles 22 is released, the rotating lever 10 is rotated to the inner position by the urging force of the spring 19, and both the nipping rollers 13 are adjacent to each other at the position corresponding to the driving roller 6. A pair of caps 2a
Is engaged in between. In this state, switching of the solenoid valve 40 causes both air cylinders 20 to project, and the holding body 21 engages with the operation piece 10a of the rotating lever 10 as shown by the chain line in FIG. Are held in the engagement position. As a result, the frame 1 is rotatably mounted around the insulator 2.

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

In the apparatus of this embodiment, the roller bodies 42 of the rollers 6 and 13 are made of a rigid metal material such as aluminum. A coating layer 43 made of an elastic material such as urethane rubber having a high friction coefficient is formed on the outer peripheral surface of the roller body 42.
Therefore, when each of the rollers 6 and 13 comes into contact with the outer surface of the insulator 2 and is rotated, there is no risk of slippage between the outer peripheral surface of the rollers 6 and 13 and the outer surface of the insulator 2. Furthermore, since the roller body 42 made of a rigid metal material does not directly contact the outer surface of the insulator 2, the outer surface of the insulator 2 is not damaged by the contact with the rollers 6 and 13.

The layer 43 made of an elastic material formed on the outer peripheral surface of the roller body 42 is thin by coating and has a thickness of about 1.0 to 1.5 mm. Therefore, when the rollers 6 and 13 are rotated while contacting the outer surface of the insulator 2, the rollers 6 and 13 are not largely elastically deformed by the rigidity of the roller body 42 made of a rigid metal material. Therefore, the frame 1 is rotated around the insulator 2 while being always held at a fixed position with respect to the outer surface of the insulator 2. As a result, the rotating brush 26 on the frame 1 is brought into contact with the outer surface of the insulator 2 in a stable state, and the contaminant attached to the outer surface of the insulator 2 can be uniformly removed.

Moreover, when the roller body 42 is made of aluminum, the weight can be reduced due to the fact that the roller body 42 is hollow. Therefore, the weight of the entire device can be reduced.

The present invention is not limited to the configuration of the above-described embodiment. For example, as the rigid material of the roller main body 42 and the elastic material of the coating layer 43, materials different from those of the above-mentioned embodiment are used. The configurations of the respective parts can be arbitrarily modified and embodied without departing from the spirit of the present invention.

[0035]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it has the following effects. According to the invention of claim 1, when the roller contacts the outer surface of the insulator and is rotated, slippage between the roller and the outer surface of the insulator or damage to the outer surface of the insulator can be prevented. . Further, it is possible to suppress the deformation of the roller and always dispose the frame at a fixed position with respect to the insulator, prevent the variation of the contact state of the brush with the outer surface of the insulator, and uniformly remove the contaminants. .

According to the second aspect of the invention, the weight of each roller can be reduced, and the weight of the entire apparatus can be reduced.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of an insulator fouling removing device 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.

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

5 is an enlarged cross-sectional view taken along the line VV of FIG.

FIG. 6 is a partial cross-sectional view showing an enlarged cable connection configuration between a rotating lever for a nipping roller and an operation handle for releasing.

7 is a partial enlarged cross-sectional view taken along line VII-VII of FIG.

[Explanation of Codes] 1 ... Frame, 2 ... Insulator, 3 ... First Rotation Mechanism as First Rotation Means, 6 ... Drive Roller, 8 ... First Motor, 10 ...
Rotating lever, 13 ... nip roller, 26 ... rotating brush, 2
7 ... 2nd rotation mechanism as 2nd rotation means, 32 ... 2nd motor, 42 ... Roller main body, 43 ... Coating layer.

Front page continued (72) Inventor Tsunezo Hirota 2-1367 Soga-cho, Chuo-ku, Chiba-shi, Chiba, Tokyo Electric Power Co., Inc. Chiba Thermal Power Station (72) Inventor Yukitaka Kamiya 1-1-1, Uchisai-cho, Chiyoda-ku, Tokyo No. 3 Tokyo Electric Power Co., Inc. (72) Inventor Takayoshi Guri 2-56 Sudamachi, Mizuho-ku, Nagoya City Nippon Insulator Co., Ltd. (72) Inventor Toshiaki Suzuki 2-56 Sudamachi, Mizuho-ku, Nagoya City Japan Insulator Child Co., Ltd. (56) Reference Japanese Unexamined Patent Publication No. 4-112143 (JP, A) Actual Opening 5-79823 (JP, U) Actual Opening Sho 60-192322 (JP, U) Actual Public Sho 35-9677 (JP , Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01B 17/00-17/54

Claims (2)

(57) [Claims] 1. A plurality of rollers supported on the frame are brought into contact with the outer surface of the insulator so that the frame is mounted so as to be rotatable around the insulator, and a cap portion of the insulator is arranged on the frame.
Rotatably supports a plurality of brushes arranged along the row direction, and while the frame is rotating around the insulator by the rotation of the rollers, the contaminants attached to the outer surface of the insulator are removed by the rotation of the brushes. In the insulator fouling removing device, the roller is placed between a pair of cap portions adjacent to each other in the axial direction of the insulator.
The roller is inserted between the pair of cap portions to engage with the roller.
Inserted intermediate large diameter part and the tip that contacts the outer peripheral surface of each cap
While forming the small-diameter portion at the end and the small-diameter portion at the base end, the roller is composed of a roller body made of a rigid material and a coating layer made of an elastic material with a high friction coefficient coated on the outer peripheral surface of the roller body. Decontamination device. 2. The insulator stain removing device according to claim 1, wherein the roller body is made of aluminum.