JPS58352Y2 - Dual tension device for 2 conductors - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a two-strand tensioning device for a two-stranded body in which a single-stranded insulator device supported at one point is connected, and is aimed at simplifying tensioning work.

Conventionally, a commonly used double tension device for connecting two conductors (power transmission lines) uses two fixed yokes to hold the conductors together.

For this reason, when performing wire tensioning work, do not use lock pins on the fixed yoke itself, assemble a semi-metal wheel, wind up two wires in parallel, and then tighten the wire when the two conductor wires reach the normal slack. Ordinary wire tensioning work (not shown) such as hitting a come-along and temporarily placing a tongue buckle can be performed.

However, in today's double series of large-diameter electric wires (1160ufTAC8R) that are used for large-capacity power transmission, double tension devices are used to support one series with extremely good lateral deflection characteristics, and the overall It is often used as a double tension device.

In this case, the retaining yoke member will naturally be used independently, so
During tensioning work, at least one lock pin (two on the left and right) must be placed on the tie-down yoke member that is installed in parallel and the connecting member that spans across the line, which is not easy and requires the use of the tie-down yoke member. In addition to the construction holes, it was necessary to drill more holes (for lock pins) than necessary, which also made it troublesome.

The present invention improves the above-mentioned drawbacks, and its configuration will be described below with reference to the drawings of the embodiments.

1.1 is a tension insulator chain whose base end is supported at one point 3, 3 to the steel tower 2, and the base ends of horizontal yoke members 4, 4 are attached to the tips of the tension insulator chain 1, 1, respectively. At the ends of the horizontal yoke member 4°4, which are on the tension line passing through the connecting points, conductors 5,
The tension clamps 6 and 6 to which 5 is attached are held and connected.

In this case, the opposing side surfaces 4a, 4a of the parallel horizontal yoke members 4, 4 are arranged in parallel.

γ is a connecting ring whose both ends are connected to the horizontal yoke members 4, 4 by connecting bolts 8, and the connecting link 7 is connected to the horizontal yoke members 4.
, 4, both ends of which are disposed on both sides of the horizontal yoke members 4 in the gap 9 of the connecting link γ, 7.
, 4, a rectangular locking plate 10 having parallel contact surfaces 10a, 10a that abuts on the side surfaces 4a, 4a of 4 is inserted,
The lock plate 10 can be attached and detached by a support bolt 11 passing through the center of the rectangular lock plate 10 and the center of the connecting link 7.

To explain this effect now, first, when tensioning the conductor (electric wire), the tension insulator chain 1 whose base end is supported at one point to the 2nd part of the steel tower.
, 1 are attached to the ends of the split horizontal yoke members 4, respectively.
, 4 are connected at one point each by a connecting link 7, and a rectangular locking plate 10 is attached to the center of the connecting link 7 with a support bolt 11, the width of the rectangular locking plate 10 is
corresponds to the interval width l' between the side surfaces 4a, 4a of the opposing horizontal yoke members 4, 4, so that the side surface 4a +
4a is the contact surface 10a of the rectangular lock plate 10,
10a and becomes immovable, forming a kind of fixed yoke 12.
It will constitute the following.

Further, a U clevis 15.15 for attaching a hoist semi-metal wheel 14.14 is connected to a construction hole 13.13 bored in the conductor side edge of the horizontal yoke members 4,4.

Here, when tightening the conductor 5, a come-along 16 is arranged on the two conductors 5 that have been extended as shown in FIG.
4 is assembled, and then the wire 17 is wound up, and when the conductor 5 reaches the normal slackness, a come-along for tension wire 18 is struck and the wire is temporarily fastened with a turnbuckle 19.

The main wire tensioning is then performed and clamped using a known construction method.

After completing this tensioning work, if the rectangular locking plate 10 is removed from the connecting link 7, the left and right horizontal yoke members 4,
4 are simply connected by a connecting link 7 that pivots at one point, so they can rotate freely and form a kind of balance yoke 20.
It exhibits the following.

That is, since the tension device connected to the front and rear of each horizontal yoke member 4 is essentially a so-called single-point support tension insulator device, it not only has good lateral runout characteristics but also has good gearropping characteristics. etc. can also be used even if there is a difference in sequence length.

In addition, horizontal yoke members 4, 4 that are installed in parallel even if the connections are disconnected.
Since the central part is connected by a connecting link 7, it is a safe type in which the conductor does not fall to the ground.

As mentioned above, in the present invention, two sets of one-point support single tension devices are installed in parallel, and this horizontal yoke member is pivotally connected at one point by a connecting link, and the horizontal yoke member is connected to the horizontal yoke member between the left and right horizontal yoke members. By making the intervening rectangular lock plate removable,
The horizontal yoke member, which conventionally had to be fixed with multiple bolts during wire tensioning work, is restricted from rotating in surface contact only by the interposition of the rectangular locking plate, which puts a load on the connecting bolts of the connecting link. It is extremely durable, allows reliable wire tensioning work, is easy to handle, and has good lateral deflection characteristics because it is an independent support system.

Furthermore, since the present invention has a simple structure, it is easy to manufacture and has practical effects such as being durable for long-term use.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a plan view of the used state, Fig. 2 is a plan view of the horizontal yoke, Fig. 3 is a front view showing the main parts, and Fig. 4 is a It is an explanatory diagram of a line state. 1...Tensile insulator chain, 3...1 point support,
4... Horizontal yoke member, 5... Conductor,
6... Tension clamp, 7... Connecting link, 10... Rectangular lock plate, 11...
・Support bolt.

Claims (1)

[Scope of utility model registration request] A horizontal yoke member is attached to each tip of two independently supported tensile insulator strings so that the opposing sides are parallel, and a conductor is attached to each tip of the horizontal yoke member to form two strings as a whole. At the same time, the side portions of both horizontal yoke members arranged in parallel are connected at one point by a connecting link, and a rectangular lock is provided at the center of the connecting link with both side surfaces abutting the side surfaces of the horizontal yoke member. A 2-unit tension device for 2 units with plates attached removably.