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Double-apex cross arm and power transmission tower

A technology of transmission towers and crossarms, applied in the field of transmission insulation equipment, can solve problems such as complex structure, waste, and increased cost

Pending Publication Date: 2019-01-22
国网新疆电力有限公司建设分公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in some special towers such as transposition towers and strain towers, there is no need to hang wires on both sides of the transmission tower, and it is wasteful to use symmetrically arranged cross arms on both sides of the transmission tower, which not only complicates the structure, but also greatly increased cost

Method used

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  • Double-apex cross arm and power transmission tower
  • Double-apex cross arm and power transmission tower
  • Double-apex cross arm and power transmission tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 1 As shown, the transmission tower 1000 of this embodiment is a lattice steel tower, which has a tower leg 1001, a tower body 1002 connected above the tower leg 1001, and a tower head 110 connected above the tower body 1002, and the tower head 110 is provided with There are double-pointed cross-arms 120, and the double-pointed cross-arms 120 are used to hang the wires 1003, and the section of the tower head 110 along the horizontal plane is a square. The tower legs 1001, the tower body 1002 and the tower head 110 are all made of angle steel.

[0028] Of course, the present invention is not limited thereto. In other embodiments, the power transmission tower 1000 may also use other metal materials such as iron, or may also use composite materials. The section of the tower head 110 along the horizontal plane may also be rectangular.

[0029] like figure 2 , image 3 As shown, in this embodiment, the double-pointed cross-arm 120 has two sets of pointed cros...

Embodiment 2

[0047] see Figure 7 , the structure of the double-pointed cross-arm 220 in this embodiment is basically the same as that of the double-pointed cross-arm 120 in Embodiment 1, the difference is that in each group of pointed cross-arms 230, the first cross-arm insulator 240 and the second The cross-arm insulators 250 are all composed of a composite insulator, and no auxiliary cross-arm insulators are provided. The second cross-arm insulator 250 of one set of pointed cross-arms 230 is directly connected to the midpoint of the second angle steel 202 through a connecting piece, thereby connecting to the tower head 210, without auxiliary arms and auxiliary cable-stayed insulators. The structure of another group of pointed cross arms 230 is the same as that of the pointed cross arms 130 in the first embodiment.

[0048] Of course, the present invention is not limited thereto. In other embodiments, the second cross-arm insulators 250 in the two sets of pointed cross-arms 230 may also...

Embodiment 3

[0050] see Figure 8The structure of the double-pointed cross-arm 320 in this embodiment is basically the same as that of the double-pointed cross-arm 120 in Embodiment 1, the difference is that each group of pointed cross-arms 330 is also provided with a second cable-stayed insulator 390 and A third cable-stayed insulator 391, one end of the second cable-stayed insulator 390 is connected to the connection between the first cable-stayed insulator 380 and the tower head 310, and the other end of the second cable-stayed insulator 390 is connected to the second cross-arm insulator 350 and The junction of the auxiliary cross-arm insulator 370. One end of the third cable-stayed insulator 391 is connected to the connection between the first cable-stayed insulator 380 and the tower head 310, and the other end of the third cable-stayed insulator 391 is connected to the connection between the first cross-arm insulator 340 and the auxiliary cross-arm insulator 370 .

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Abstract

The invention discloses a double-apex cross arm used for a power transmission tower. The power transmission tower comprises a tower head, a section of the tower head along the horizontal plane is a rectangular section, and the double-apex cross arm comprises two groups of sharp cross arms. Each group of the sharp cross arms comprises two groups of cross arm insulators distributed in a V shape along the horizontal plane, wherein one ends, at an opening position of the V shape, of the cross arm insulators are arranged on two adjacent sides of the rectangular section while the other ends are connected together to form a hanging point for hanging of wires. The two hanging points of the two groups of the sharp cross arms are positioned on the same side of the tower head. The double-apex cross arm is convenient to transport and maintain and low in cost. The invention further discloses the power transmission tower.

Description

technical field [0001] The invention relates to the field of power transmission insulation equipment, in particular to a double-pointed cross arm and a power transmission tower. Background technique [0002] The transmission tower is an important supporting structure in the transmission line, and its structure and materials directly affect the construction speed, reliability, installation, maintenance, and repair of the transmission line. The cross-arm is set on the transmission tower to hang the wires. The cross-arms are generally arranged symmetrically on both sides of the transmission tower. The free ends of the cross-arms are hung with wires. The specific structure and setting method of the cross-arm greatly affect the width of the corridor. , tower head size, tower height and the corresponding demolition, installation, transportation costs, etc. Especially in some special towers such as transposition towers and strain towers, there is no need to hang wires on both side...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/24E04H12/00
CPCE04H12/00E04H12/24
Inventor 周楠何金业马斌程峰杨世江张健毕雪昱潘晓冬谢金华王金锁徐玉波穆峰磊黄清郁杰李德权
Owner 国网新疆电力有限公司建设分公司
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