JP2003217374A - Device for washing insulator and method for washing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing device and method suitable for washing a long vertical insulator link. <P>SOLUTION: A washing part 10 for the insulator 4 is provided with an arch guide body 11 put on an insulator 4, a rotating body 12 rotating being guided by a guide body 11, brushes 13, 14 extending from the rotating body toward the insulator, a water tank 41 discharging water toward the insulator 4, two first string bodies 15, 16 having one end parts attached on both end parts of a rotating body 12, two rollers 18, 19 which the first string bodies 15, 16 are put around, a first rotating body 21 winding the first string bodies 15, 16 put around the roller 18, 19, and two second string bodies 25, 26 wound by a second rotating body 22 provided coaxially with the first rotating body 21 and extending upward and rotating the rotating body 12 along a guide body 11 in a regular and a reverse direction by being alternatively pulled above a washing part 10. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator cleaning apparatus and a cleaning method suitable for cleaning insulators of long vertical insulators of a high voltage transmission line tower.

[0002]

2. Description of the Related Art Power transmission line towers are installed outdoors, and the insulators that hold the power transmission lines are likely to adhere to dust and salt in sea breeze over a long period of time, which tends to impair insulation. Therefore, the insulator is cleaned appropriately.

A conventional insulator cleaning apparatus has a cleaning unit attached to the tip of an operating rod. The operating rod is operated to fit the cleaning unit into the insulator, and the cleaning water is directed from the water tank toward the insulator. While discharging, the upper and lower surfaces of the insulator are cleaned by a brush that contacts the upper and lower surfaces.

Insulators connected with insulators are a tension type (horizontal or substantially horizontal arrangement) and a vertical type (suspended vertically at the tip of the arm of a tower, etc., and the transmission line is held at the lower end thereof. What is done).

[0005]

In recent years, the high voltage of power transmission lines has been increasing more and more, and more than 500,000 volt-class ones are also appearing. With this, the series of insulators is becoming longer and longer.
Conventionally, when cleaning a vertical insulator chain, an operator is located on the side of the insulator chain and protrudes the operation rod laterally (horizontally) toward the insulator chain, and fits the cleaning section at the tip end to the insulator. I was wearing it and cleaning it. In this case, the operating rod is prone to large fluctuations in the vertical direction while being bent due to the heavy cleaning portion including the water tank at the tip thereof. In addition, since a strong wind is often blown especially on the tower, the washing part is apt to largely fluctuate vertically and horizontally due to the wind pressure.

For this reason, conventionally, the work of fitting the cleaning portion to the insulator has been very troublesome. In particular, in the case of the elongated vertical insulator chain as described above, since the operating rod is also large, it is extremely difficult to fit the cleaning portion to the insulator, and thus the cleaning work requires a lot of labor and time.

Therefore, an object of the present invention is to provide an insulator cleaning apparatus and a cleaning method suitable for cleaning a long vertical insulator string.

[0008]

SUMMARY OF THE INVENTION The present invention is an insulator cleaning apparatus for cleaning insulators of a vertical type insulator string suspended on a high voltage transmission line tower, which has an insulator cleaning section. A circular arc-shaped guide body that is applied to the outer periphery of an insulator having a circular planar shape, a rotating body that is rotated by being guided by the guide body, and an upper surface of the insulator that extends from the rotating body toward the insulator. A cleaning element that is in sliding contact with the lower surface to clean the upper surface and the lower surface, a water tank that discharges cleaning water toward the insulator, and two left and right first strings with one end attached to both ends of the rotating body. And a pair of left and right rollers around which the first string-like body circulates, a first rotating body around which the first string-like body around these rollers is wound, and a first rotation A second rotating body provided coaxially with the body, and an upper portion which is wound around the second rotating body. The first rotating body and the second rotating body are normally and reversely rotated by extending and pulling alternately above the cleaning unit, and thereby the rotating body is normally and reversely rotated along the guide body. An electric-insulating operating rod extending upward through a connecting portion is connected to the cleaning unit, and two second string-shaped members are provided, so that the cleaning unit is supported from above by the operating rod. I chose

The present invention also relates to an insulator cleaning method for cleaning insulators of a vertical insulator string suspended on a high voltage transmission line tower, which is cleaned by an electrically insulating operation rod extending upward from a cleaning unit. Part from above and apply the arc-shaped guide body of the cleaning part to the outer periphery of the insulator with a circular planar shape.
2 extending upward from the second rotating body provided in the cleaning unit
By alternately pulling the second string-like body of the book above the cleaning section, the second rotating body around which the second string-like body is wound and the second rotating body are coaxial with the second rotating body. Both ends of the rotating body provided on the guide body are rotated by forward and reverse rotation of the first rotating body provided on the first rotating body, which is wound around the first rotating body and circulates around the pair of left and right rollers. By alternately winding and rewinding the first string-shaped body having its tip end attached to the first rotating body, the rotating body is normally and reversely rotated along the guide body, and While cleaning water is discharged toward the insulator, a cleaning element extending from the rotating body is brought into sliding contact with the upper and lower surfaces to clean the upper and lower surfaces.

According to the present invention, two workers are located above the insulator chain, and one worker vertically or substantially vertically extends the operation rod downward to remove the cleaning portion at the lower end portion of the operation rod. Fit in. That is, instead of protruding the operating rod toward the insulator chain in the horizontal direction as in the conventional case,
Since it stands vertically or substantially vertically and extends straight downward, the weight (load) burden on the operator is much smaller than that of the conventional one. Since the cleaning unit is located at the lower end of the vertical operating rod, the operating rod does not greatly bend or wobble due to its load as in the conventional case, and therefore the operator can easily fit the cleaning unit on the insulator. . Then, the other operator is located in the vicinity of the one operator and alternately pulls the two second string-like bodies to bring the cleaning element into sliding contact with the upper surface and the lower surface of the insulator. The top and bottom surfaces can be thoroughly cleaned. Further, since the two workers are located close to each other, it is possible to perform the cleaning work in good combination while verbally exchanging the work progress status with each other.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 is a schematic overall side view of a vertical insulator string on a transmission line tower during a cleaning operation, Fig. 2 is a plan view of the cleaning section, Fig. 3 is a partial plan view of the cleaning section, and Figs. FIG. 6 is a partial side view of FIG. 6, and is a perspective view of a roller and a rotating wheel showing a banding structure of the first string-shaped body and the second string-shaped body.

In FIG. 1, 1 is a transmission line tower main body, 2 is an arm portion extending laterally from the main body 1, and an arm portion 2
A vertical insulator string 3 is suspended at the tip of the. The insulator string 3 is made up of a large number of insulators 4 each having a circular planar shape connected by a connecting portion 5, and holds a power transmission line 6 at a lower end portion thereof. The power transmission line 6 is a high-voltage line of 500,000 volts, and thus the insulator string 3 is lengthened (for example, 10 m or more).

Two workers P1 and P2 are located on the arm portion 2. One worker P1 holds the upper end of the operating rod 9. The operating rod 9 is vertically or substantially vertically held upright, and the cleaning unit 10 at the lower end thereof is attached to the insulator 4.
Is attached to. The other worker P2 is one worker P
1 near each of the two second strings 25 with both hands,
Holds 26. With the cleaning unit 10 fitted in the insulator 4, the worker P2 operates the two second string-like members 25, 2
When 6 is alternately pulled upward (see arrow a), the brush (described later) of the cleaning unit 10 is slidably contacted with the upper surface and the lower surface of the insulator 4 to clean the upper surface and the lower surface. As described above, in the insulator cleaning apparatus according to the present invention, the two workers P1 and P2 are located above the vertical insulator chain 3, and one worker P1 holds the operating rod 9 vertically and lowers its bottom end. The cleaning section 10 of the second section is fitted to the insulator 4, and the other operator P2 is
It is characterized in that the insulator 4 is washed by alternately pulling 5, 26 upward.

Next, the structure of the cleaning unit 10 will be described with reference to FIGS. 2 and 3, 11 is a semicircular arc,
The guide body has a box-shaped cross section, and a semicircular arc-shaped rotating body 12 is disposed inside the guide body. As shown in FIG. 4, the rotating body 1
The brush 2 is provided with brushes 13 and 14 as cleaning elements extending from both ends toward the upper surface and the lower surface of the insulator 4.

At both ends of the rotating body 12, the ends of two left and right wires 15 and 16 as a first string-like body are attached to a stopper 20.
Is attached to. In FIGS. 2 and 5, the guide body 11 is fixed to the tip of the base 17. Guide body 1
A pair of left and right rollers 18 and 19 are pivotally supported on the base 17 at the rear of the unit 1. In addition, the first rotating body 2 is mounted on the base 17.
The first and second rotating bodies 22 are coaxially mounted on a rotating shaft 23. Reference numeral 24 is a bearing of the rotary shaft 23, and these are arranged on the base portion 17.

The two wires 15 and 16 are the rollers 1
It is wound around the first rotating body 21 by going around 8 and 19. Further, two wires 25 and 26 as a second string-shaped body are wound around the second rotating body 22. FIG. 6 is a perspective view showing a banding structure of the wires 15 and 16 and the wires 25 and 26.

In FIG. 5, a hook-shaped arm 30 extends upward from the guide body 11, and a roll 31 that comes into contact with the upper surface of the insulator 4 is pivotally supported at the tip thereof. The guide body 11 operates the operating rod 9 to move the cleaning unit 10 to the arrow N.
As shown in FIG. 5, the roll 31 is fitted to the outer periphery of the insulator 4 by moving it horizontally from the side to the insulator 4, but at this time, the roll 31 is placed on the upper surface of the insulator 4a above the insulator 4b to be cleaned. It abuts, and the positioning of the guide body 11 is thereby performed. That is, the arm 30 and the roll 31
Is a positioning means for positioning the cleaning unit 10 at the cleaning position of the insulator 4. A connecting portion 32 such as a universal joint is attached to the arm 30.
The lower end of the operating rod 9 is connected to.

In FIG. 2, two water tanks 41 on the left and right are provided on both sides of the guide body 11. Water tank 4
1 is integrally supported by the base portion 17 by a supporting means such as a frame (not shown). A pipe 42 extends from the water tank 41 toward the upper surface and the lower surface of the insulator 4.
Although not shown, a plurality of small holes are formed at the tip of the pipe 42 with a pitch and the cleaning water is discharged from the small holes toward the upper surface and the lower surface of the insulator 4. Still water tank 4
1 is well known.

This insulator cleaning apparatus has the above-mentioned structure, and the insulator cleaning method will be described below. As shown in FIG. 1, the workers P1 and P2 pull up the cleaning device to the arm portion 2 of the transmission line tower. One worker P1 holds the operating rod 9 in an upright posture, and the cleaning unit 10 at the lower end of the operating rod 9 holds it.
Is lowered and the guide body 11 is fitted onto the outer peripheral portion of the insulator 4b to be cleaned (FIGS. 4 and 5). At this time, the roll 31 comes into contact with the upper surface of the upper insulator 4a of the insulator 4b, whereby the cleaning unit 10 is positioned at a predetermined position. 4 and 5, the insulator 4 is provided with subscripts "a", "b", and "c" for distinguishing them.

Next, the other operator P2 located above the insulator chain 3 holds the two wires 25 and 26 in both hands,
The pulling operation is alternately performed upward (arrow a in FIGS. 1 and 5).
Then, in FIG. 6, the second rotating body 22 rotates forward and backward (arrow b), and the first rotating body 21 coaxial with this rotates in the same direction b.
Rotate forward and backward. When the first rotating body 21 rotates forward and backward in this way, the two wires 15 and 16 are alternately wound around the first rotating wheel 21 and rewound to make a reciprocating linear motion in the longitudinal direction c thereof. Then, the rotating body 12 to which the tips of the wires 15 and 16 are attached is alternately pulled by the wires 15 and 16 to rotate forward and backward in the guide body 11 (arrow d in FIG. 3). As a result, the brushes 13 and 14 are also rotated.
Rotate forward and backward together with 2 in the same direction (arrow e in FIG. 3), and the upper surface and the lower surface of the insulator 4b with which they are in sliding contact are cleaned.

When the cleaning of the insulator 4b is completed in this way, the worker P1 removes the cleaning section 10 from the insulator 4b, and then fits the lower insulator 4c in the same manner, and the roll 31 on the upper stage. Abut on the upper surface of insulator 4b,
The insulator 4c is washed in the same manner as above.

In the above cleaning work, two workers P
1, P2 are located above the vertical insulator chain 3 and
1, the operating rod 9 is erected and lowered downward, and the cleaning part 10 at the lower end of the operating rod 9 is attached to and detached from the insulator 4, so that the operating rod is largely bent or wobbled by the load of the cleaning part as in the conventional method. Since the operator P1 can easily fit the cleaning unit 10 on the insulator 4 because it is not easily hit by the wind, the operator P1 who operates the operating rod 9 can greatly reduce the labor and time. Can be washed easily with good workability.
According to the present invention, among the insulators forming the long vertical insulator chain, particularly the insulators at the lower portion (that is, the workers P1, P
It has the advantage that cleaning of insulators located far from 2 can be done efficiently.

[0023]

According to the present invention, the labor of the operator can be greatly reduced, and the insulator cleaning of the long vertical insulator chain can be easily and quickly performed.

[Brief description of drawings]

[Fig. 1] Schematic overall side view during cleaning work of a vertical insulator string on a transmission line tower

FIG. 2 is a plan view of a cleaning unit.

FIG. 3 is a partial plan view of a cleaning unit.

FIG. 4 is a partial side view during cleaning.

FIG. 5 is a partial side view during cleaning.

FIG. 6 is a perspective view of a roller and a rotating wheel showing a banding structure of a first string-shaped body and a second string-shaped body.

[Explanation of symbols]

3 insulators 4 insulators 9 control rod 10 Cleaning section 11 Guide body 12 Rotating body 13,14 Brush (cleaning element) 15,16 First string 18,19 Laura 21 First rotating body 22 Second rotating body 25,26 Second string 41 water tank

Claims (2)

[Claims] 1. An insulator cleaning device for cleaning insulators of a vertical insulator string suspended on a high-voltage transmission line tower, comprising an insulator cleaning portion, and the cleaning portion has a circular planar shape. An arc-shaped guide body that is applied to the outer peripheral portion of the rotating body, a rotating body that is rotated by being guided by the guide body, and an upper surface that extends from the rotating body toward the insulator and is in sliding contact with the upper surface and the lower surface of the insulator. A cleaning element for cleaning the lower surface, a water tank for discharging cleaning water toward the insulator, two left and right first string-shaped bodies having one end attached to both ends of the rotating body, and the first of these. Two rollers on the left and right around which the string-shaped body revolves,
A first rotating body around which a first string-shaped body that winds around these rollers is wound, a second rotating body that is provided coaxially with the first rotating body, and a second rotating body. The first rotating body and the second rotating body are rotated in the forward and reverse directions by rotating the first rotating body and the second rotating body by alternately pulling the cleaning body above the cleaning unit, whereby the rotating body is moved along the guide body. And a second string-like body for rotating in the normal and reverse directions, and an electrically insulating operation rod extending upward through the connecting portion is connected to the cleaning portion,
This insulator cleaning device is characterized in that the cleaning unit is supported from above by the operating rod. 2. A method for cleaning insulators of a vertical type insulator string suspended from a high voltage transmission line tower, the method comprising cleaning an insulator by an electrically insulating operation rod extending upward from the cleaning portion. Supported by the arc-shaped guide body of the cleaning unit, is applied to the outer periphery of the insulator having a circular planar shape, and two second strings extending upward from the second rotating body provided in the cleaning unit. The second string in which these second strings are wound by alternately pulling the strings above the cleaning section
Rotating body and the first rotating body provided coaxially with the second rotating body are rotated in the forward and reverse directions, and the first and second rotating bodies are rotated by the forward and reverse rotations.
The first rotator, which is wound around the rotator and circulates a pair of left and right rollers, and has the first string-shaped body having the tip ends attached to both ends of the rotator provided in the guide body, alternately. By rotating and rewinding the rotating body along the guide body by rewinding and rewinding on and from the water tank, the cleaning element extending from the rotating body is discharged while washing water is discharged toward the insulator. A method for cleaning an insulator characterized in that the upper surface and the lower surface are slidably contacted to clean the upper surface and the lower surface.