JP2021164237A - Guide device of wire rope for hanging insulator - Google Patents

Abstract

To provide a guide device of a wire rope for hanging an insulator, capable of avoiding an interference from a cross arm in a lower direction.SOLUTION: A guide device 1 is attached to a cross arm C1 of an iron tower T so as to attract the middle of a wire rope R hanging an insulator G to a side direction with a guide metal wheel 4 and guide it to a desire overhang position. The guide device 1 includes: a fixed part 2 gripping a horizontal main material A made of an angle steel material structuring the cross arm C1 of the iron tower T; an arm part 3 extended from the fixed part 2 so as to be freely and horizontally rotated; the guide metal wheel 4 hanged to a tip end part of the arm part 3; and a pair of left and right lever blocks 5 for fixing the arm part 3 to the horizontal main material A at an optional extension angle position to the horizontal main material A.SELECTED DRAWING: Figure 3

Description

In the present invention, in the work of attaching and detaching the insulator hung on the arm of the steel tower, the wire rope that hangs the insulator and is wound around the winch on the ground via the gold wheel above the tower interferes with the lower arm and the like. It relates to a wire rope guide device for guiding to a position to avoid.

Conventionally, as a insulator lifting device used when holding an insulator to the arm of a transmission line tower, the one described in Patent Document 1 is known. In this insulator lifting device, the lower ends of two booms with a turnbuckle structure that can be expanded and contracted are pivotally attached to one of the two horizontal main members of the tower arm. The upper end of the boom is connected by the boom head, and the wire held to the other horizontal main material via the diagonal main material of the arm is pulled by the chain block to undulate. The pulley device is hung on the upper end of the boom, and the insulator is lifted by operating the winch on the ground. The lifting position is positioned to the left and right by adjusting the length of the two booms on the left and right.

Japanese Unexamined Patent Publication No. 6-86418

Since the conventional insulator lifting device has a turnbuckle structure, it is difficult to turn and the range in which it can turn is narrow. In addition, the number of parts is large, and it takes time to install and remove.
Therefore, the invention employs a method of lifting and lowering a rope to a plurality of lower arms using a single pulley locked to a steel tower at a position above the arms, and at that time, lowering. It is an object of the present invention to provide a guide device for a wire rope for suspension having a simple structure, which can safely and easily avoid interference with the arm metal.

Hereinafter, the description will be made with reference to the reference numerals in the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above problems, the wire rope guide device 1 of the present invention is a winch on the ground by a wire rope R hung on a lifting pulley P attached to a steel tower T above an arm C1 on which a porcelain G is hung. A wire rope guide device attached to the arm metal C1 of the iron tower T so as to guide the way of the wire rope R for suspending the porcelain G to a desired hanging position in the construction of lifting and lowering the porcelain G by the operation of W. The fixing portion 2 for gripping the horizontal main material A made of the angle steel material constituting the wire rope C1 of the iron tower T, the arm portion 3 extending horizontally from the fixing portion 2 and the arm portion 3 A guide metal wheel 4 suspended from the tip and hung on the way of the wire rope R, and a pair of lever blocks for fixing the arm portion 3 to the horizontal main material A at an arbitrary extension angle position with respect to the horizontal main material A. (Registered trademark) 5. The fixing portion 2 abuts on the valley side surface with the horizontal main material A sandwiched between the support member 6 that abuts on the mountain side surface of the horizontal main material A and the support member 6, and is connected to the support member 6 by the bolt 8. The holding member 7 is provided. The arm portion 3 is rotatably supported horizontally and horizontally by the support member 6 on the base end side, and is provided on the arm body 3b extending horizontally from the support member 6 and on the left and right side surfaces on the tip end side of the arm body 3b. It is provided with two puller metal fittings 3c and a hanging metal fitting 3d provided at the lower part on the tip side. The guide metal wheel 4 is hung on the hanging metal fitting 3d of the arm body 3a. The wire rope R is hung on the guide metal wheel 4. The lower hook 5a of the pair of lever blocks 5 is locked to the pull metal fitting 3c, and the upper hook 5b is held by the horizontal main material A on both the left and right sides of the arm body 3a.

The guide device 1 for the wire rope for suspending the porcelain of the present invention adjusts the extension angle of the arm portion 3 with respect to the fixing portion 2 and supports the horizontal main material A with the lever block 5 so that the guide metal wheel 4 can be used. By pulling the wire rope R in the middle, the hanging position of the porcelain G can be easily set to a position that does not interfere with the other lower arm metal C2. As a result, it is possible to omit the work of moving the insulator to the non-interfering position by human power on the lower arm C2, which has been conventionally performed.

It is explanatory drawing of the use state of the wire rope guide device of FIG. It is a front view of the guide device of the wire rope of FIG. It is a top view of the guide device of the wire rope of FIG. It is a side view of the guide device of the wire rope of FIG.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the guide device 1 of the wire rope R of the winch W on the ground is provided by the wire rope R hung on the lifting pulley P attached to the steel tower T above the arm C1 on which the insulator G is hung. It is used for construction to lift and lower the insulator G by operation.

The guide device 1 is attached to the arm C1 of the steel tower T so as to pull the wire rope R for suspending the insulator G laterally and guide it to a desired hanging position.

As shown in FIGS. 2 to 4, the guide device 1 has a fixing portion 2 for gripping a horizontal main material A made of a chevron steel material constituting an arm metal C1 of an iron tower, and a fixing portion 2 extending horizontally from the fixing portion 2 so as to be able to rotate horizontally. To fix the arm portion 3 to be used, the guide metal wheel 4 suspended from the tip portion of the arm portion 3, and the arm portion 3 to the horizontal main material A at an arbitrary extension angle position with respect to the horizontal main material A. In FIG. 2, a pair of left and right lever blocks (registered trademark) 5 is provided.

The fixing portion 2 abuts on the valley side surface with the horizontal main material A sandwiched between the support member 6 that abuts on the mountain side surface of the horizontal main material A and the support member 6, and is connected to the support member 6 by the bolt 8. It is provided with a holding member 7 to be used.

The support member 6 includes a first contact plate portion 6a that contacts the back surface of the horizontal main material A, which is a mountain side surface, over a predetermined length, and a second contact plate portion 6b that contacts the bottom surface over a predetermined length. The second contact plate portion 6b includes a barrel portion 6c that vertically projects downward from the lower surface.

A pair of sandwiching members 7 are provided on both sides of the support member 6 at intervals at the center of the support member 6. The sandwiching member 7 has a vertical plate portion 7a that faces the first contact plate portion 6a of the support member 6 and abuts on the vertical valley side surface of the horizontal main material A over a predetermined length, and a second contact plate portion. A pair of substantially triangular ribs connecting the horizontal plate portion 7b facing the 6b and contacting the horizontal valley side surface of the horizontal main material A over a predetermined length at both edge portions of the plate portions 7a and 7b. 7c is provided.

The arm portion 3 includes a bearing cylinder portion 3a that is horizontally rotatably fitted to the shaft cylinder portion 6c on the base end side, and a square tubular arm body 3b that extends horizontally from the bearing cylinder portion 3a.

Puller metal fittings 3c such as a shackle for connecting the lever block 5 are provided on the left and right side surfaces of the arm body 3b on the tip end side, and a shackle-like suspension for hanging the guide metal wheel 4 is provided at the lower tip. A metal fitting 3d is provided.

A wire rope R for suspending the insulator G is hung on the guide metal wheel 4. The guide metal wheel 4 pulls the hanging wire rope R to an arbitrary side so that the porcelain G suspended by the wire rope R does not interfere with other arms C2 or the like below.

The lower hooks 5a of the pair of lever blocks 5 are locked to the left or right puller fittings 3c of the arm body 3b, respectively, and the upper hooks 5b are locked to the horizontal main material A on the left and right sides of the arm body 3b. NS.

By pulling the lever block 5, the arm body 3b is swiveled in the direction of pulling the wire rope R by the guide metal wheel 4, and is fixed to the horizontal main material A by the lever block 5 at a desired horizontal extension angle position.

The procedure for removing the insulator G using the guide device 1 will be described. First, the support member 6 and the holding member 7 grip the horizontal main material A of the arm metal C1 and attach the arm body 3b so as to extend horizontally from the horizontal main material A.

Next, the pair of lever blocks 5 are connected between the pull metal fitting 3c of the arm body 3b and the horizontal main material A.

Next, the guide metal wheel 4 that has passed through the wire rope R is connected to the hanging metal fitting 3d of the arm body 3b.

Next, the arm body 3b is swiveled so that the tip thereof approaches the vicinity of the insulator G suspended on the tip side of the arm metal C1.

Next, the insulator G is removed from the arm C1 and locked to the lower end of the wire rope R, and the winch W is operated to lift the insulator G.

Next, the left and right lever blocks 5 are wound or rewound by two workers to rotate the arm body 3b, so that the rope G is wired by the guide metal wheel 4 to a position where it does not interfere with the lower arm C2. The rope R is pulled laterally, and the arm body 3b is fixed to the horizontal main material A by the lever block 5 at a predetermined position.

As a result, the dangerous work in which the worker pushes the insulator G on the lower arm C2 to dodge the arm C2 can be omitted, and the suspension work of the insulator G can proceed smoothly. In the lifting work for attaching the insulator G to the arm C1 of the steel tower T, this guide device 1 can be used in the reverse procedure of the above procedure.

1 Suspension wire guide device 2 Fixing part 3 Arm part 3a Bearing cylinder part 3b Arm body 3c Puller metal fittings 3d Suspension metal fittings 4 Guide metal wheel 5 Lever block 5a Lower hook 5b Upper hook 6 Support member 6a First contact plate part 6b 2nd contact plate part 6c Shaft cylinder part 7 Holding member 7a Vertical plate part 7b Water plate part 7c Rib 8 Bolt C1 Arm C2 Lower arm T Steel tower A Horizontal main material G Winch P Lifting pulley R Wire rope W Winch

Claims (2)

In the construction of lifting and lowering the insulator by the operation of the winch on the ground by the wire rope hung on the lifting pulley attached to the steel tower above the arm on which the insulator is hung, the wire rope that hangs the insulator is on the way. A wire rope guide device attached to the arm metal of the tower so as to guide the insulator to a desired hanging position.
A fixed portion that grips a horizontal main material made of angle steel that constitutes the arm metal of the iron tower, an arm portion that extends horizontally and horizontally and horizontally and horizontally from the fixed portion, and a wire suspended from the tip of the arm portion. A guide metal wheel on which the extension of the rope is hung to determine the hanging position of the wire rope, and the horizontal main material for pulling and fixing the wire rope on the way to an arbitrary hanging position by the guide metal wheel. A pair of lever blocks for fixing to the horizontal main material at an arbitrary extension angle position are provided.
The fixing portion is a holding member that abuts on the mountain side surface of the horizontal main material and a support member that abuts the valley side surface with the horizontal main material sandwiched between the support member and is connected to the support member by a bolt. And equipped
The arm portion is supported by the support member on the base end side so as to be horizontally rotatable and extends horizontally from the horizontal main material, and two puller metal fittings provided on the left and right side surfaces on the tip end side of the arm body. And equipped with a hanging bracket provided at the bottom on the tip side,
The guide metal wheel is hung on the hanging metal fitting,
The lower hook of the lever block is locked to the pull metal fitting, and the upper hook is locked to the horizontal main material on both the left and right sides of the arm body. .. The support member includes a first contact plate portion that contacts the back surface, which is the mountain side surface of the horizontal main material, over a predetermined length, a second contact plate portion that contacts the bottom surface over a predetermined length, and the first contact plate portion. It is provided with a shaft tube portion that projects vertically downward from the lower surface of the contact plate portion of 2.
The arm portion includes a bearing cylinder portion that is horizontally rotatably fitted to the shaft cylinder portion, and the arm body extends horizontally from the bearing cylinder portion of a wire rope for suspending an insulator. Guide device.

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