JP3214954B2 - How to attach the wire to the yoke bracket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a wire to a yoke when a plurality of wires of a conductor corresponding to a transmission line tower have a plurality of wires.

[0002]

2. Description of the Related Art FIG. 7 is a plan view of an angle type suspended power transmission line tower (hereinafter referred to as a tower) T having a horizontal angle θ, and an arm A ₂ on the left side of the tower T is shown in FIG. Like 1
An integral yoke fitting 20 of substantially six filaments (sometimes referred to as a conductor) is suspended.

[0003] The yoke fitting 20 is made of a single steel plate-like body 21 and has a substantially pentagonal planar shape, and a hole 21a is formed at the center thereof to reduce the weight. .

An upper piece 22 having left and right arm pieces 22a and 22b is integrally provided at a portion corresponding to the upper corner of the pentagon of the plate-like body 21.
a, a double tip of 22b, clamp C ₁ -C ₆ the portion corresponding to another corner except the upper corner of the plate-like body 21 is attached respectively, a line connecting the clamps configured to be a regular hexagon Have been.

[0005] The yoke fitting 20 is provided on the arm A of the tower T.
_{After 2} with an arc horn is attached via an insulator device B, umbilical L ₁ ~L ₆ are respectively attached to each clamp C ₁ -C _6.

[0006] First, a plurality of wires (in the example of FIG. 8, the inside line L ₁ and the outside line L) are attached to the clamps C _{1 to} C ₆ .
₂ ) are extended to the tower T. That is, the filaments L ₁ and L ₂ are suspended at the tip of the wire 30 provided on the tower T and attached to the temporary frame A ₂ ′ provided to extend outside the tip of the arm A ₂ . auxiliary wire 31 is suspended by the umbilical L ₁ by operating these wires to the clamp C _1, also mounted in the striatum L ₂ is moved to the clamp C ₂ (Utsurisen).

The order of attaching the filaments to each of the clamps C _{1 to} C ₆ is performed from the clamp C ₁ located outside (outside) and above the steel tower T and then to the clamps C ₂ and C 6.
_3, is performed in the order of _{C 4, C 5, C 6} .

The wire is attached to the clamps C ₁ and C ₃ by operating the wire 30 and the auxiliary wire 31 such that the wires L ₁ and L ₃ detour below the plate 21. Done. The reason is that if the wires L ₁ and L ₃ are suspended by the auxiliary wire 31 while loosening the wire 30 and are to be moved substantially in parallel, the plate-like body 21 becomes an obstacle.

This detouring movement is the same when the tower T is a vertical suspension tower other than the angle suspension tower as shown in the figure, and when the yoke fitting is divided and formed (for example, Japanese Utility Model Publication No. 47-47). The same applies to the case of Japanese Patent Application Publication No. In recent years, this split-type yoke fitting has a size of several hundred kg in the case of an integrated yoke when one equivalent has six conductors for ultra-high voltage power transmission, as in recent years. However, the division makes the transportation and the production easier, so that it is widely used.

[0010]

However, the above-mentioned conventional yoke fitting has to be moved so as to bypass the yoke fitting when the filament is attached to the clamp located outside the steel tower. However, there was a drawback that the operation of attaching the wire was complicated.

In particular, since the operation of attaching the wire is an operation at a high place, and it is extremely dangerous to move the heavy wire in a complicated manner, the appearance of a yoke metal fitting which can be easily transferred is awaited. At the same time, it has been desired to increase the efficiency of the work of attaching a wire to a split-type yoke fitting that has been frequently used in recent years.

Accordingly, the present invention has been made in order to meet the above-mentioned demand, and has as its object to provide a wire for a yoke fitting which can easily attach a wire extended to a steel tower to a yoke fitting. An object of the present invention is to provide a method for attaching a strip.

[0013]

According to the present invention, there is provided a yoke fitting and a method of attaching a wire to the yoke fitting according to the present invention, in order to achieve the above object, an upper piece and a lower piece for fixing a wire via a clamp. In the method of attaching a wire to a yoke fitting formed by connecting a pair of connecting pieces to the yoke, after attaching the upper piece to a steel tower, a part of the wire for the upper piece extended to the steel tower is partially attached to the upper part. Lifting tool attached to a transmission line tower with the upper piece attached to the transmission line tower centering on the mounting portion to the transmission line tower
After rotating using the above, the remaining part of the filament for the upper piece is attached to the upper piece, and then the lower piece, to which the pair of connecting pieces are pre-coupled, is connected to the upper piece, After forming the yoke fitting, a wire for the lower piece extended to the power transmission tower is attached to the yoke fitting.

[0014]

In the above construction, the pair of left and right connecting pieces are fixedly attached to the lower piece, that is, are not rotated. Then, after the upper piece is attached to the tower, a line extended from the tower is transferred to the upper piece and attached. At this time, some of the filaments are rotated by using a lifting tool to attach the filaments. When the lower piece to which the pair of connecting pieces is attached is connected to the upper piece to form a yoke fitting, the remaining filament extended to the steel tower is transferred to the formed yoke fitting. Mounted.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of a yoke fitting 1 used in the method of the present embodiment. That is, the yoke fitting 1 attached to the steel tower having six phases of one phase has four divided upper and lower pieces 3 and a pair of connecting pieces 4 and 5 mainly made of a steel plate. It is composed of parts.

The upper piece 2 and the lower piece 3 have a curved substantially arc shape, and the pair of left and right connecting pieces 4 and 5 have a rod shape slightly curved in opposite directions. The connecting pieces 4 and 5 are overlapped on the left and right sides of the upper piece 2 and the lower piece 3 with a part of the upper and lower ends overlapped, and the overlapped portion is fixed by fixing members 6a to 6d composed of bolts and nuts. ing. In order to fixedly attach the pair of connecting pieces 4 and 5 and the lower piece 3, each of the connecting pieces 4 and 5 and the lower piece 3 are fixed by a fixing member 6 composed of two bolts and nuts.
c, 6c and 6d, 6d.

At a total of six places at the center lower side and both ends of the upper piece 2 and the lower piece 3, clamp mounting holes 7 are formed. A hole 8 for attaching to the peeling device is opened, a wheel attachment hole 9 is provided below the attachment hole 8, and a rope attachment hole 10 is further provided on the upper right side of the upper piece 2. I have.

[0018] The yoke member 1, to the right of the arm A ₂ bitter pylons T shown in FIG. 7 is attached via the device B. In this mounting state, each of the clamps C ₁ -C
₆ , the position of the mounting hole 7 of each clamp, the upper and lower pieces 2, 3 and the pair of connecting pieces 4,
Insulator device B so that its size is determined and the upper and lower sides of the regular hexagon are parallel to the ground.
The position of the mounting hole 8 is determined.

Next, with reference to FIGS. 2-6, will be described streak mounted order to yoke member 1. First, attached to the arm A ₂ are lifted by pulleys provided an insulator apparatus B to the arm A ₂ (not shown). Then, advance attached gold car P ₁ gold wheel mounting holes 9 of the previously top piece 2 on the ground, attaching the top piece 2 in the apparatus B insulator to lift pulley. Further, the arm A _2, mounting the ladder with rope gold car P _2, P ₃ in order to make it easier to work, and, in the gold car P _2, P ₃ striated L _3, L _4, L ₅ and L ₆ are respectively extended.

[0020] The gold car P ₁ to Nobesen the striatum (Tengai line) L ₁ and the striatum (heaven extension) L _2, striatum L ₁ that the extended line, L
₂ is attached to the clamps C ₁ and C ₂ using wires (not shown) (see FIG. 2). Gold car P ₁ is,
After the wire is attached to the clamps C ₁ and C ₂ , the wire is removed from the upper piece 2.

After the attachment of the filaments L ₁ and L ₂ , the lever lock R is connected between the arm A ₂ and the rope attachment hole 10, and the lever of the lever block R is operated to connect the piece 2 to the attachment hole 8.
Is turned around. Due to this rotation, the clamp C ₃ is positioned above the line (middle and outer line) L ₃ extended to the wheel P ₂ . Attached to Utsurisen filar L ₃ to the clamp C ₃ in this state (see FIG. 3). Although the lever block is used as the lifting tool R, a known lifting tool such as a chain block or a winch may be used.

Next, the lower piece 3 connecting the pair of connecting pieces 4 and 5 on the ground is lifted using a pulley and connected to the upper piece 2 (see FIG. 4). Then, attach the striatum (middle extension) L _4, which is Nobesen gold car P ₂ and Utsurisen to the clamp C ₄ (see FIG. 5).

[0023] After the removal of the gold car P _2, which was emptied from the arm A _2, the striatum, which is Nobesen to gold car P ₃ (Chigaisen) L ₅
The to clamp C _5, and then attached to Utsurisen the striatum (Chinai line) L ₆ to the clamp C _6, thereby attaching the filament L ₁ ~L ₆ to the yoke member 1 is completed.

The striatum method of mounting yoke fitting 1 of this embodiment, first, attached to the upper piece 2 insulator device B lifts the upper piece 2 Tokinsha P ₁ together, a line on the top piece 2 Article L
_1, attached to Utsurisen the L ₂ gold vehicle P _1, then attach the upper piece 2 rotates gold car P ₂ by Utsurisen striatal L _3. Then, a yoke member 1 and connected to the upper piece 2 to lift the lower piece 3, the umbilical L ₄ ~L ₆ of the remainder gold car P
_2, since the attachment by Utsurisen from P _3, can be efficiently streak mounting operation to the yoke member 1 without degradation of the yoke member 1 on the ground.

[0025] In the above embodiment, gold car P ₁ has been so lifted together with the upper piece 2, the gold car P ₁ even through the pulleys in the same manner as other gold vehicle P _2, P ₃ it may be lifted to the arm a _2. However, according to the present embodiment, there is an advantage that the number of lifting operations of the member can be reduced.

[0026]

According to the present invention, a method of attaching a wire to a yoke fitting is to lift an upper piece, attach a part of a wire for the upper piece to the upper piece, and turn the upper piece using a lifting tool. The yoke on the ground was moved by attaching the remaining strip for the upper piece, and connecting the lower piece to the upper piece to form a yoke fitting, and attaching the remaining strip to the yoke fitting. can umbilical attachment work without disassembly of the bracket, thus, can be performed with good efficiency striatal mounting operation.

[Brief description of the drawings]

FIG. 1 is a front view showing a state where a yoke fitting is attached to a steel tower.

FIG. 2 is an explanatory view showing an order of attaching a filament to a yoke fitting.

FIG. 3 is a diagram illustrating an order in which a filament is attached to a yoke fitting.

FIG. 4 is a diagram illustrating an order in which a filament is attached to a yoke fitting.

FIG. 5 is a diagram for explaining an order of attaching a filament to a yoke fitting.

FIG. 6 is a view for explaining an order of attaching a filament to a yoke fitting.

FIG. 7 is a front view of a conventional integrated yoke fitting.

FIG. 8 is a plan view of an angle type suspension tower.

[Explanation of symbols]

1 yoke member 2 top piece 3 lower piece 4,5 connection pieces 6a, 6b fixed member T tower (angle type catenary power line tower) B insulator device C ₁ -C ₆ Clamp L ₁ ~L ₆ striatum (conductor) R lever Block (lifting tool)

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor: Satoshi Kato 16 at Kamibetsu, Honjuku-cho, Okazaki City, Aichi Prefecture (56) References JP-A-4-200211 (JP, A) JP-A-4-206214 (JP, A) JP-A-5-49131 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 1/02 H01B 17/16

Claims (1)

(57) [Claims] 1. A method of attaching a wire to a yoke fitting comprising an upper piece and a lower piece connected by a pair of connecting pieces for fixing the wire via a clamp, wherein the upper piece is attached to a power transmission tower. after mounting, the mounting part of the filament for the transmission lines tower to be Nobesen an upper piece on top piece, the feeding of the upper piece around the attachment to the transmission line tower
After rotating using a lifting tool attached to the electric wire tower, the remaining part of the wire for the upper piece is attached to the upper piece, and then the lower piece, to which the pair of connecting pieces are pre-coupled, is attached. After the yoke is formed by being connected to the upper piece, a wire for the lower piece extended to the power transmission tower is attached to the yoke. Method.