JP2535122Y2 - Multi-conductor power line spacer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a spacer for a multi-conductor transmission line, and more particularly to a spacer for a multi-conductor transmission line used for a large-diameter multi-conductor transmission line.

[Conventional technology]

As a conventional spacer of this type, a frame is usually formed integrally, and a required number of wire clamping devices are attached to the frame.

On the other hand, multi-conductor transmission lines also tend to have large capacities, and some bundle diameters may reach 2-3 m.

[Problems to be solved by the invention]

As described above, as the amount of power transmission per bundle increases, the spacing between the conductors held by the spacers also increases, so that the diameter of the bundle must be large, and when the short-circuit occurs. Since the electromagnetic force of the short-circuit current is also large, the short-circuit strength must be increased, and furthermore, in order to withstand abnormal vibration such as subspan galloping that occurs in the icing area, the frame section must have a large section modulus. Not
Accordingly, the structure of each part of the frame becomes large, and as a result, the weight of the frame has to be increased. As a result, the manufacture and handling of the spacers becomes extremely difficult, and in particular, the preparation of a large-capacity plating tank when plating the spacers, the consumption of a large amount of plating solution, the difficulty in maintaining the plating operation conditions, and the difficulty in the plating operation Difficulty occurs, and it is extremely difficult to handle in the air, such as transporting the spacer to the mounting position or mounting the spacer to the power transmission line. Therefore, there is a problem to solve such a problem.

Further, in order to solve such a problem, a multi-conductor power line spacer formed by dividing a frame into a plurality of frame portions having the same shape and connecting and fixing the frame portions to each other with connecting bolts is also provided. However, when it is applied to a large, large-diameter transmission line, it is subjected to a large stress or load, so that it is necessary to increase the strength of each frame portion. The total weight of the spacers has increased, and mounting the spacers on the transmission line has been extremely difficult, given the unstable work at high altitudes during the airborne construction work.

This invention was made in order to solve the problems and disadvantages of the conventional multi-conductor transmission line spacer. Even for a large bundle transmission line, the divided frame portions are lightweight. It is an object of the present invention to provide a multi-conductor power transmission line spacer that is easy to handle, easy to manufacture, transport, and attach.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a multi-conductor power line spacer comprising a frame formed in a regular polygon and provided at each apex with a clamp device for gripping the power line, wherein the frame is: A plurality of frame parts divided into the same size and the same shape are configured by connecting and fixing their ends to the ends of adjacent frame parts, and the reinforcing material of the frame is a frame body whose both ends correspond. The end portion of the portion is fixed along the inner peripheral surface, and the adjacent end portion is connected and fixed to form a polygonal frame.

[Action]

Since the frame is composed of a plurality of frames of the same size and divided into the same shape, it is easy to manufacture and transport, and the reinforcing material is attached to the inner peripheral surface of the end of the corresponding frame at both ends. Since they are fixed along, the frame portion and the reinforcing material can be handled separately or in combination in a separated state. The reinforcing material is connected and fixed at adjacent ends to form a polygonal frame, so it is strong in strength and can withstand large structural stress and load, and the material must be lightweight. Can be. Therefore, handling including transportation and attachment to a transmission line can be performed extremely easily.

〔Example〕

Hereinafter, the present invention will be described with reference to the drawings showing one embodiment.

In FIG. 1, reference numeral 1 denotes a spacer, and its frame 2 is formed in a polygonal shape, for example, a hexagonal shape. At each apex of the frame 2, a clamp device 3 for holding a transmission line is fixedly provided.

The frame 2 is divided into a frame portion 2a and a frame portion 2a at a substantially central portion 4 of the adjacent clamp devices 3,3.
Both ends of the reinforcing material 5 are fixed to the inner peripheral surfaces of both ends of the
The frame portion 2a is reinforced. Therefore, in the example of FIG. 1, the frame portion provided with one clamp device 3 is provided.
2 a and one reinforcing member 5 constitute a spacer portion 6 which is a unit body of the spacer 1.

The spacer portion 6 configured as described above forms a spacer 1 by connecting adjacent end portions.

An example of the connection of the spacer portions 6 is shown in FIGS. 1 and 2. However, in this example, the frame portion 2a is made of a square material, the reinforcing material 5 is made of a round material, and the two are welded (W). However, the present invention is not limited to this.

In this connection, after the ends of the spacer portion 6 are abutted against each other, a U-shaped connecting member 7 is covered from the radial direction side, and the connecting member 7 and the frame portion 2a are fastened and fixed by bolts and nuts 8, and And the spacer portions 6 to be connected to each other. In this embodiment, the coupling member 7 is separated from the spacer portion 6, but may be fixed to one of the spacer portions 6 in advance.

The spacer 1 is formed by performing the above operations over the entire circumference.

In the above embodiment, each spacer portion 6 is divided at the central portion 4 between the adjacent clamp devices 3 so as to have one clamp device 3 for each spacer portion 6, but FIG. As shown by a solid line, the frame 2 may be divided such that one frame portion 2a includes two clamp devices 3, and the reinforcing member 5a in that case is divided in the middle by a frame portion as shown by a solid line. The reinforcement member 5b may be fixed to the frame member 2a, or may be a reinforcing member 5b in which the ends of the frame portion 2a are directly connected linearly as indicated by a dashed line. In this embodiment, the frame 2 is formed in a regular hexagon, but may be formed in a quadrangle, an octagon or more, and the reinforcing member may be provided according to the above.

Also, the bonding between the spacer portions 6 is not limited to the above,
It may be configured as shown in FIG.

That is, as shown in FIG. 4A, female screws 2b and 2c having different left and right leads are provided on each end face of the frame portion 2a of the spacer portion 6 to be connected, and left male screws respectively screwed into the female screws 2b and 2c.
By the connecting member 10a having right external threads on both sides, the frame portion 2
a may be connected to connect the spacer portions 6.

Further, as shown in FIG. 4B, a right female screw and a left female screw
A coupling collar member 11 having left and right 11a, 11b is provided, and left and right male screws 2d, 2e with which the left and right female screws 11a, 11b are screwed are formed on each end face of the frame portion 2a of the spacer portion 6 to be connected. May be joined to connect the frame portion 2a to connect the spacer portion 6.

Further, as shown in FIG. 5, a protrusion 12a is provided on one end of the frame body portion 2a, and a hole for fitting the protrusion 12a is provided on the other.
The two frame portions 2a are tightly fitted to each other, and the frame portion 2a is engaged with a nut 13 screwed to a screw 2b provided on one outer diameter with the other, and the two are tightened to form a spacer portion 6a. May be connected.

Also, as shown in FIG. 6, the reinforcing member 5a of one spacer portion 6a is fixed at 9 with its tip longer than the frame portion 2a _{1 and} the reinforcing member 5b of the other spacer portion 6b is by the thickness of 5a frame portions 2a ₂ from the float to keep configuration stretched from the frame body portion 2a ₂ with fixed 9. The spacer portions 6a and 6b configured as described above may be inserted and connected together, and may be connected together by bolts and nuts 8.

This embodiment is configured as described above, so that one member in the plating operation can be reduced in size, so that the plating operation can be performed efficiently. The parts are fixed along the inner peripheral surface of the end of the corresponding frame part, and the adjacent ends are connected and fixed to form a polygonal frame, so that it can withstand a large load structurally, It is not necessary to make the reinforcing material itself too thick, so that the overall weight is reduced, and both the transportation to the installation site and the transportation to the installation position can be performed in the state of the spacer portion 6. The spacer 1 can also be attached to the electric wire in the state of the spacer portion 6 if necessary, and thereafter, the spacer portions 6 can be connected and coupled together.

In the above embodiment, the frame 2 is a hexagonal frame. However, the present invention is not limited to this, and other polygons may be used.

[Effect of the invention]

According to this invention, the frame body is configured such that a plurality of frame parts divided into the same size in the same shape are connected and fixed at their ends to the ends of the adjacent frame body parts, and a reinforcing material for the frame body is provided. Are fixed along the inner peripheral surface of the end of the corresponding frame body part, and the adjacent ends are connected and fixed to form a polygonal frame. It can withstand a large load, is lightweight, and can be used as a spacer for large power transmission. In addition to being able to withstand a large load, manufacturing including plating work can be performed efficiently and economically, and benefits such as division and weight reduction, which are easy to handle including transport and mounting, can be obtained. .

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a detailed perspective view of part II of FIG. 1, FIG. 3 is a side view of another embodiment of the present invention, and FIGS. Is a cross-sectional view of another two examples of a method of connecting the spacer portion 6, and FIGS. 5 and 6 are cross-sectional views and side views of still another two examples. 1 ... spacer, 2 ... frame, 2a ... frame part, 3 ...
Clamping device, 4 central part, 5 reinforcement material, 6 spacer part.

Continuation of the front page (72) Inventor Mitsuo Inoue 475, Hisamoto, Takatsu-ku, Kawasaki-shi, Kanagawa Prefecture Asahi Electric Co., Ltd. U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A multi-conductor power transmission line spacer comprising a frame formed in a regular polygon and provided with a clamp device for gripping the transmission line at each of its points, wherein the frames have the same size and the same shape. A plurality of divided frame portions are formed by connecting and fixing the ends thereof to the ends of the adjacent frame portions, and the reinforcing material of the frame is formed such that both ends thereof correspond to the inner peripheral surface of the end portion of the frame portion. Characterized in that the spacers are fixed along and the adjacent ends are connected and fixed to form a polygonal frame.