Novel damping type anti-vibration device

An anti-dancing device and damping technology, which is applied in mechanical vibration attenuation devices, devices for maintaining the distance between parallel conductors, overhead installations, etc., can solve problems such as broken wires and tower collapses, and can suppress up and down dancing, prevent wire dancing, and prevent broken wires. The effect of line accidents

Pending Publication Date: 2019-08-16
陕西臻源电力科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing interphase spacers, anti-dancing devices, etc. can reduce the degree of galloping to a certain extent, but it is still difficult to meet the requirements, and the existing

Method used

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, a novel damping type anti-dancing device provided by the present invention includes a composite insulator 2, a steel wire rope stay cable 3, a hanger spring shock absorber 4 and a gravity concrete foundation 5, wherein the upper end of the gravity concrete foundation 5 is as high as About 50 cm above the ground, the upper end surface is poured with anchor bolts, and the lower part of the gravity concrete foundation 5 is placed in the pit; Type concrete foundation 5 is required to meet three times the safety factor, that is, the gravity is equal to three times the wire galloping pull-out force.

[0028] One end of the hanger spring shock absorber 4 is installed on the gravity concrete foundation 5, and the other end is connected with one end of the composite composite insulator 2 through the steel wire cable 3, and the other ...

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Abstract

The invention provides a novel damping type anti-vibration device comprising a steel wire cable, a hanger spring shock absorber and a gravity concrete foundation, wherein one end of the hanger springshock absorber is installed on the gravity concrete foundation, and the other end of the hanger spring shock absorber is installed at a lowest sag point of the sag of a conductive wire or fixed to a frame of a spacing bar on the conductive wire through the steel wire cable. According to the novel damping type anti-vibration device, the vibration of the conductive wire can be effectively prevented,especially the up and down vibration of the conductive wire can be suppressed, and the device has a simple structure and is suitable for a variety of conductive wires with different split numbers.

Description

technical field [0001] The invention relates to an electric power transmission line protection device, in particular to a novel damping type anti-dancing device. Background technique [0002] Galloping of overhead transmission lines is a kind of self-excited vibration with low frequency and large amplitude, and vertical motion is the main movement in galloping. Galloping may cause short circuit between lines and grounding, and the losses include arc burns, broken strands, broken lines, tower damage, tower collapse, damage to anti-vibration hammer and spacer rods, etc., especially for ice-coated wires, the damage is more serious , if galloping cannot be effectively suppressed, it will bring serious economic losses and power grid safety accidents. [0003] As the voltage level increases, transmission lines use split wires with different split numbers, and the split wires are more prone to galloping. Therefore, it is urgent to develop corresponding effective anti-dance devices...

Claims

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Application Information

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IPC IPC(8): H02G7/14H02G7/12
CPCH02G7/125H02G7/14
Inventor 曾林平祝永昆周睿文沈辉孟翔杨帆
Owner 陕西臻源电力科技服务有限公司
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