CN204424843U - One prevents stockbridge damper positioning device - Google Patents

Abstract

A device for preventing anti-vibration hammers from moving, belonging to the field of electric equipment, the utility model solves the problem that the anti-vibration hammers on overhead power lines are prone to move and affect the reliability of power supply. The technical scheme of the utility model: an insulator is arranged on the overhead wire through a wire clip, two anti-vibration hammers are symmetrically arranged on both sides of the wire clip, and the device for preventing the anti-vibration hammer from moving includes two parallel ditch wire clips, and the two anti-vibration hammers are tightly Fastening bolts, two ring terminals and metal stranded wires, a ring terminal is provided at both ends of the metal stranded wire, and the ring terminals are fastened to the two anti-vibration hammers by fastening the bolts through the anti-vibration hammer, and then The metal stranded wire is fixed between two anti-vibration hammers; two parallel groove clamps are arranged symmetrically on both sides of the clamp, and each parallel groove clamp fixes the overhead conductor and the metal stranded wire side by side. The utility model is used for fixing the anti-vibration hammer on the overhead power line.

Description

A device for preventing shock-proof hammer from moving

technical field

The utility model relates to a device for preventing a shockproof hammer from moving, which belongs to the field of electric equipment.

Background technique

At present, with the acceleration of the pace of domestic industry, the number of power lines has also increased. Due to the advantages of low cost and strong transmission capacity, overhead transmission lines are widely used and are the main components of my country's power grid. However, the overhead power lines are affected by weather conditions such as wind, ice, and low temperature, which cause the lines to vibrate and dance. The vibration frequency is high and the amplitude is small. The wind vibration causes the overhead line to be repeatedly bent at the suspension point, causing material fatigue, and finally leads to broken strands and broken lines. The frequency of galloping is very low, but the amplitude is very large, which can easily cause phase-to-phase flashover, resulting in serious accidents such as line tripping, power failure or burning of wires. In order to eliminate the natural vibration of the line and the resonance caused by the wind, it is necessary to install an anti-vibration hammer on the transmission wire and the ground wire. Because it is hung at the suspension point of the line tower pole, it can absorb or weaken the vibration energy, change the line swing frequency, and prevent Vibration or galloping of the line. The existing anti-vibration hammer for wire clamps the transmission wire or the ground wire with its recessed jaw by bolts. In order to secure the positioning of the shock absorber, it is easy to use too much force during the installation process, causing metal fatigue on the stress-bearing parts of the shock absorber; thermal expansion and contraction of the wire due to temperature changes; wind vibration makes the shock absorber loose, these factors are easy to make The anti-vibration hammer appears to be out of position. The anti-shock effect is reduced, threatening the safe operation of the line. In order to return the anti-vibration hammer to its position and fix it, a power outage is required for maintenance, which seriously affects the reliability of power supply, and maintenance personnel need to use tools such as insulation ladders to move on the wires to the movement point of the anti-vibration hammer. The maintenance workload and difficulty are relatively large, and the risk factor is high high.

Contents of the invention

The purpose of the utility model is to solve the problem that the anti-vibration hammer on the overhead power line is easy to move out of position, which affects the reliability of power supply, and provides a device for preventing the anti-vibration hammer from moving out of position.

The device for preventing the anti-vibration hammer from moving according to the utility model is provided with an insulator on the overhead wire through a wire clip, and two anti-vibration hammers are arranged symmetrically on both sides of the wire clip.

The anti-vibration hammer movement prevention device includes two parallel groove clamps, two anti-vibration hammer fastening bolts, two ring terminals and metal strands,

Both ends of the metal stranded wire are provided with a ring terminal, and the ring terminal is fastened to the two anti-vibration hammers through the anti-vibration hammer fastening bolts, and then the metal stranded wire is fixed between the two anti-vibration hammers;

Two parallel trench clamps are arranged symmetrically on both sides of the clamp, and each parallel trench clamp fixes the overhead conductor and the metal stranded wire side by side.

The utility model has the advantages: through the fixing and limiting function of the device, the occurrence of the shock-proof hammer movement phenomenon is avoided, the shock-proof effect of the shock-proof hammer is maintained, the difficulty of maintenance is reduced, the labor intensity is reduced, and the safe operation of the transmission line is ensured; the device Easy and simple installation, solid and reliable, convenient maintenance, low cost and suitable for large-scale promotion.

Description of drawings

Fig. 1 is a schematic diagram of the installation structure of the anti-vibration hammer fixed by the device for preventing the anti-vibration hammer from moving according to the utility model;

Fig. 2 is a structural schematic diagram of the connecting parts of the device for preventing the anti-vibration hammer from moving and fixing the anti-vibration hammer according to the utility model;

FIG. 3 is a top view of FIG. 2 .

Detailed ways

Specific embodiment 1: The present embodiment will be described below in conjunction with Fig. 1 to Fig. 3. A device for preventing shock-proof hammer movement described in this embodiment is provided with insulators on the overhead conductor 3 through the clamp 1, and on both sides of the clamp 1 Two anti-vibration hammers 4 are arranged symmetrically,

The anti-vibration hammer movement prevention device includes two parallel groove clamps 2, two anti-vibration hammer fastening bolts 5, two ring terminals 6 and metal strands 7,

Both ends of the metal stranded wire 7 are provided with a ring terminal 6, and the ring terminal 6 is fastened to the two anti-vibration hammers 4 through the anti-vibration hammer fastening bolt 5, and then the metal stranded wire 7 is fixed on the two Between the anti-vibration hammer 4;

Two parallel groove clamps 2 are arranged symmetrically on both sides of the wire clamp 1, and each parallel groove clamp 2 fixes the overhead conductor 3 and the metal strand 7 side by side.

The diameter of the anti-vibration hammer fastening bolt 5 matches the size of the connecting hole of the ring terminal 6 .

The length of the metal strand 7 is the distance between the two anti-vibration hammers 4 on both sides of the clamp 1 .

The ring terminal 6 is fixed on the two ends of the metal stranded wire 7, and the metal stranded wire 7 with the ring terminal 6 at both ends is tightened by the anti-vibration hammer to fasten the bolt 5 to fasten the ring terminal 6 to the two wire clamps. The side anti-vibration hammer 4 comes up to play the effect of connecting the anti-vibration hammer 4 on both sides of the fixed wire, and the ditch wire clamp 2 is used to fix the metal strand 7 on the overhead wire 3 to play the role of fixing the device. Determine the size of the connection hole of the ring terminal 6 according to the size of the anti-vibration hammer fastening bolt 5 . Determine the length of the metal stranded wire 7 according to the distance between the two anti-vibration hammers 4 after the correct installation of the anti-vibration hammers 4 on both sides of the wire clamp 1 according to the regulations.

The hardness and elasticity of the metal stranded wire 7 meet the installation requirements and play the role of fixing the anti-vibration hammer 4, and the length of the anti-vibration hammer fastening bolt 5 meets the process standard requirements after connecting the ring terminal 6.

Through this device, the fixing and connection of the anti-vibration hammer 4 on both sides of the wire clip 1 has played a role in fixing and restricting the anti-vibration hammer 4, avoiding the phenomenon of movement of the anti-vibration hammer 4, and maintaining the anti-vibration effect of the anti-vibration hammer 4, reducing maintenance. Difficulty, reduce the labor intensity, and ensure the safe operation of the transmission line.

Claims (3)

1. prevent a stockbridge damper positioning device, aerial condutor (3) be provided with insulator by wire clamp (1), two stockbridge dampers (4) are set in the bilateral symmetry of wire clamp (1),

It is characterized in that, described in prevent stockbridge damper positioning device from comprising two parallel groove clamps (2), two stockbridge damper fastening bolts (5), two annulus binding posts (6) and metallic cable (7),

The two ends of metallic cable (7) are provided with an annulus binding post (6), by stockbridge damper fastening bolt (5), annulus binding post (6) is fastened on two stockbridge dampers (4), and then metallic cable (7) is fixed between two stockbridge dampers (4);

Arrange two parallel groove clamps (2) in wire clamp (1) bilateral symmetry, aerial condutor (3) and metallic cable (7) are fixed together by each parallel groove clamp (2) side by side.

2. one prevents stockbridge damper positioning device according to claim 1, it is characterized in that, the diameter of stockbridge damper fastening bolt (5) matches with the size of annulus binding post (6) connecting hole.

3. one prevents stockbridge damper positioning device according to claim 1, it is characterized in that, the length of metallic cable (7) is the distance between two stockbridge dampers (4) of wire clamp (1) both sides.