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Power transmission tower

A technology of transmission tower and tower body, applied in the field of transmission tower, can solve problems such as poor torsional resistance of composite cross arms

Active Publication Date: 2015-07-01
SHANGHAI SHEMAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is an urgent need to solve the problem of poor torsional force of the composite cross-arm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 , figure 2 As shown, the power transmission tower 1000 of this embodiment includes a tower body 100 , a cross arm 110 is connected to the tower body 100 , and the end of the cross arm 110 is connected to a wire clamp fitting 120 . In addition, a cable stay 130 is also provided between the tower body 100 and the cross arm 110 . figure 1 , figure 2 In the figure, only the cross-arm 110 structure is cross-sectionally processed.

[0035] In this embodiment, the cross arm 110 is a composite cross arm, and the cross arm 110 includes an insulator 111 as a main body, and a rotating device 114 connected to one end of the insulator 111 . The rotating device 114 is fixed on the tower body 100 , and the insulator 111 is connected to the tower body 100 through the rotating device 114 . Wherein the insulator 111 is a hollow composite insulator, figure 1 , figure 2 It is only for illustration, and the shed structure outside the composite insulator is not draw...

Embodiment 2

[0040] Such as image 3 , Figure 4 As shown, the power transmission tower 2000 of this embodiment includes a tower body 200 , a cross arm 210 is connected to the tower body 200 , and the end of the cross arm 210 is connected to a wire clamp fitting 220 . In addition, a cable stay 230 is also provided between the tower body 200 and the cross arm 210 .

[0041] In this embodiment, the cross arm 210 is a composite cross arm, and the cross arm 210 includes an insulator 211 as a main body, and a rotating device 214 connected to one end of the insulator 211 . The other end of the insulator 211 is fixed on the tower body 200 . The wire clip hardware 220 is connected to the rotating device 214 . Wherein the insulator 211 is a hollow composite insulator, image 3 , Figure 4 It is only for illustration, and the shed structure outside the composite insulator is not drawn.

[0042] The rotating device 214 includes a fixed cavity 212 fixed at the end of the insulator 211 and a movi...

Embodiment 3

[0046] Such as Figure 5 As shown, the structure of the transmission tower 3000 of this embodiment is basically the same as that of the transmission tower 2000 of the second embodiment of the present invention, the difference is that one end of the cable stay 330 is fixed on the tower body 300, and the other end is fixed on the insulator 311 away from the tower body 300 at one end. A limiting member 331 extends from the end of the cable-staying member 330 , one end of the limiting member 331 is fixed on the end of the cable-staying member 330 , and the other end is fixed on the moving shaft 313 .

[0047] In the transmission tower 3000 of this embodiment, the cable-stayed part 330 itself directly acts as the load-bearing insulator 311, and the angle of rotation of the stop shaft 313 is limited by the limiter 331, effectively preventing the cable-stayed part 330 from acting on the moving shaft 313 too much. The pulling force in the direction of the inclined stay member 330 pre...

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Abstract

The invention discloses a power transmission tower. The power transmission tower comprises a tower body, a cross arm connected to the tower body, and a wire clamp hardware connected to the tail end of the cross arm, wherein the wire clamp hardware is used for connecting a power transmission wire; the cross arm comprises an insulator, and a rotating device arranged on the insulator; the wire clamp hardware is rotated around an axis of the cross arm through the rotating device. The power transmission tower can overcome the shortage of poor twisting resistance of the combined cross arm, and can greatly improve the adaptability of the combined cross arm.

Description

technical field [0001] The invention relates to a power transmission device, in particular to a power transmission tower. Background technique [0002] In the power transmission equipment, the composite cross-arm is used as a structure to support the operation of the transmission line. Compared with the traditional iron tower, due to its excellent insulation performance, the tower is less affected by the wind load, the height is significantly reduced, the width of the corridor is reduced, and the weight of the whole tower is reduced. Reduced, the basic force is also reduced accordingly, which improves the safety performance, and at the same time has the advantages of corrosion resistance, strong environmental adaptability, maintenance-free, and good designability. [0003] Composite cross-arms use hollow insulators as stress components, and their torsional performance is average. If they are used on transmission towers with high stress, they cannot meet the mechanical perfor...

Claims

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Application Information

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IPC IPC(8): E04H12/24
Inventor 马斌邱勇郁杰赵华赟
Owner SHANGHAI SHEMAR POWER ENG CO LTD
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