CN104242210A - Connecting structure for quakeproof hammer of overhead transmission conductor - Google Patents

Abstract

The invention discloses a wire shockproof structure, in particular to a connection structure of an overhead power transmission wire shockproof hammer. A connection structure of an anti-vibration hammer for overhead power transmission wires, the specific structure of which is as follows: a first wire and a second wire are arranged parallel to the horizontal direction, a first anti-vibration hammer and a second anti-vibration hammer are installed on the first wire, and the first anti-vibration hammer The cable clamp splint of the first shock absorber is connected to the first shock absorber splint through the first shock absorber spring, the third antivibration hammer is installed on the second wire, and the cable clamp splint of the third shock absorber is connected to the second shock absorber splint through the second shock absorber spring , a force transmission spring is arranged between the wire clamp splint of the second anti-vibration hammer and the wire clamp splint of the third anti-vibration hammer. It has a good effect of preventing conductor vibration and long service life, which solves the influence of the additional vibration and bending stress of the shockproof device itself on the conductor, and also has the effect of greatly reducing the large galloping effect of the conductor, effectively prolonging the service life of the overhead transmission conductor and facilitating maintenance. .

Description

A connection structure of an anti-vibration hammer for overhead transmission lines

technical field

The present invention relates to a wire shockproof structure, in particular to a connection structure of an overhead power transmission wire shockproof hammer.

Background technique

The overhead transmission wire is affected by wind, ice, low temperature and other meteorological conditions, causing the line to vibrate and dance. When vibrating, the frequency is high and the amplitude is small. The wind vibration causes the overhead line to be bent repeatedly 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 solve this problem, a small hammer is often hung on the wire of the high-voltage overhead line. This small hammer is called an anti-vibration hammer. The anti-vibration hammer is designed to reduce the vibration of the wire. Present anti-vibration hammer is made of wire clip splint, steel strand and tup, is installed on the lead. When the overhead line vibrates, the anti-vibration hammer vibrates up and down accordingly. Due to the inertia of the hammer head, the steel strand continuously bends up and down, thereby reducing the vibration energy.

However, in addition to the breeze vibration of the current overhead line, in some bad weather such as rain, snow and strong wind, the external force on the hammer head of the shockproof hammer is increased, and there is often a separation between the hammerhead and the steel strand, making the shockproof The service life of the hammer is shortened, and maintenance and replacement work is increased. At the same time, because the anti-vibration hammer is subjected to external force, the influence of its own additional vibration and bending stress will increase the large galloping of the wire and reduce the service life of the wire. Anti-vibration hammers are less effective at reducing excessive wire gallop.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a connection structure of an anti-vibration hammer for overhead power transmission wires. It also has the effect of greatly reducing the large galloping of the conductor, effectively prolonging the service life of the overhead transmission conductor and facilitating maintenance.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

A connection structure of an anti-vibration hammer for overhead transmission wires, the specific structure of which is as follows: a first wire and a second wire are arranged in parallel in the horizontal direction, a first anti-vibration hammer and a second anti-vibration hammer are installed on the first wire, and the first anti-vibration hammer The wire clip splint is connected with the first shock-absorbing splint through the first shock-absorbing spring, the first shock-absorbing splint is installed on the first wire, the third anti-vibration hammer is installed on the second wire, and the wire clip splint of the third anti-vibration hammer passes through The second damping spring is connected with the second damping splint, the second damping splint is installed on the second wire, and a force transmission spring is arranged between the wire clamp splint of the second anti-vibration hammer and the wire clamp splint of the third anti-vibration hammer . the

The length of the above-mentioned first shock-absorbing spring is 25 centimeters, the distance between the wire clip splint of the first anti-vibration hammer and the wire clip splint of the second shock-proof hammer is 60 centimeters, and the length of the second shock-absorbing spring is 60 centimeters.

The above-mentioned first shock absorbing splint and the second shock absorbing splint have the same structure as the wire clamp splint.

The above-mentioned first damping spring, second damping spring and force transmission spring are all compression springs. the

The structure of the above-mentioned anti-vibration hammer is as follows: it includes a wire clamp splint, a steel strand and a hammer head. One end of the steel strand is arranged in the hammer head, and the other end of the steel strand is fastened to the wire clamp splint. The structure of the hammer head is as follows : the left wheel hub and the right wheel hub are located on both sides, the wheel shaft is arranged between the left wheel hub and the right wheel hub, the rotatable impeller is set on the wheel shaft, and the compression spring is set between the hammer head and the steel strand.

Two compression springs are arranged between the above-mentioned hammerhead and a steel strand, and the two compression springs are respectively arranged one above and below.

The outer edges of the above-mentioned blades are 1.5-2 centimeters higher than the outer edges of the left hub and the right hub, and the blades on the impeller are equidistantly arranged.

Owing to adopting above-mentioned technical scheme, make the present invention have following advantage and effect:

The invention installs three anti-vibration hammers on two horizontally adjacent wires, and after being connected by springs, the vibration energy of the wires can be better absorbed, the swing frequency of the wires can be changed, and vibration and galloping of the wires can be prevented. The invention effectively prevents the wire from vibrating, and the anti-shock effect is obviously enhanced, and it is not affected by the vibration frequency of the wire, and various vibration frequencies have good shock-proof effects.

The invention has good anti-vibration effect. On two adjacent power transmission wires, two sets of the invention can be installed opposite to each other to effectively prevent the vibration of the wires, facilitate maintenance, and greatly reduce the maintenance workload of the wires and the anti-vibration hammer. Through the experiment of the inventor, the anti-vibration effect of the present invention is compared with that of the conventional anti-vibration hammer. The anti-vibration effect of the present invention is obviously better than that of the existing anti-vibration hammer structure, and the service life of the wire can be extended for at least 10 years by using the present invention.

The hammer head of the anti-vibration hammer of the present invention is innovatively changed into a wheel hub and wheel shaft structure, and an impeller is sleeved on the wheel shaft. When acting on the hammer head, the impeller can remove part of the external force, which effectively reduces the large galloping of the wire, and solves the influence of the additional vibration and bending stress of the anti-vibration device itself on the wire. Due to the arrangement of the impeller and the compression spring, the inertia effect of the hammer head is enhanced, and the overall vibration prevention effect of the anti-vibration hammer is further improved. The setting of the impeller can also remove part of the external force's downward gravitational effect on the hammer head, which can further prolong the service life of the lead wire and the hammer head.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a structural schematic diagram of the anti-vibration hammer.

Among the figure, 1, left wheel hub, 2, wheel shaft, 3, impeller, 4, blade, 5, right wheel hub, 6, wire clip splint, 7, steel strand, 8, compression spring, 9, hammerhead, 11, the first One anti-vibration hammer, 12, the first shock-absorbing spring, 13, the first shock-absorbing splint, 14, the second anti-vibration hammer, 15, the third anti-vibration hammer, 16, the second shock-absorbing spring, 17, the second shock-absorbing splint, 18, the first lead, 19, the second lead, 20, the force transmission spring.

Detailed ways

The present invention is described in further detail below in conjunction with embodiment. The following examples are only specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial changes made to the present invention by using this concept should be regarded as violations of the protection scope of the present invention.

As shown in Figure 1, the present invention is a connection structure of an antivibration hammer for overhead power transmission wires. Hammer 11 and the second anti-vibration hammer 14, the wire clip splint of the first anti-vibration hammer 11 is connected with the first shock-absorbing splint 13 by the first shock-absorbing spring 12, and the first shock-absorbing splint 13 is installed on the first wire 18, the first The length of shock-absorbing spring 12 is 25 centimetres, and the first shock-absorbing splint 13 is identical with the wire clip splint structure, and the distance between the wire clip splint of the first anti-vibration hammer 11 and the wire clip splint of the second anti-vibration hammer 14 is 60 centimeters, The third anti-vibration hammer 15 is installed on the second wire 19, and the wire clip splint of the third anti-vibration hammer 15 is connected with the second shock-absorbing splint 17 by the second shock-absorbing spring 16, and the second shock-absorbing splint 17 is installed on the second wire 19. Above, the structure of the second damping splint 17 is the same as that of the wire clamp splint, and the length of the second shock absorbing spring 16 is 60 cm, between the wire clamp splint of the second anti-vibration hammer 14 and the wire clamp splint of the third anti-vibration hammer 15 A force transmission spring 20 is provided. Wherein the first damping spring 12, the second damping spring 16 and the force transmission spring 20 are all compression springs. the

As shown in Figure 2, the structures of the above-mentioned first anti-vibration hammer 11, the second anti-vibration hammer 14 and the third anti-vibration hammer 15 are as follows: they include a clamp splint 6, a steel strand 7 and a hammer head 9, wherein the steel strand 7 One end is arranged in the hammer head 9, and the other end of the steel strand 7 is fastened to the clamp splint 6. The structure of the hammer head 9 is as follows: the left hub 1 and the right hub 5 located on both sides, the left hub 1 and the right hub 5 A wheel shaft 2 is arranged between them, and a rotatable impeller 3 is set on the wheel shaft 2, and the blades 4 on the impeller 3 are equidistantly arranged. The outer edge of blade 4 is higher than left wheel hub 1 and right wheel hub 5 outer edges 1.5-2 centimeters best. A compression spring 8 is arranged between the tup 9 and the steel strand 7, two compression springs are optimally arranged between a tup 9 and a steel strand 7, and each of the two compression springs is provided with one up and down.

The invention installs three anti-vibration hammers on two horizontally adjacent wires, and after being connected by springs, the vibration energy of the wires can be better absorbed, the swing frequency of the wires can be changed, and vibration or galloping of the wires can be prevented. The invention effectively prevents the wire from vibrating, and the anti-shock effect is obviously enhanced, and it is not affected by the vibration frequency of the wire, and various vibration frequencies have good shock-proof effects.

The working principle of the anti-vibration hammer is as follows: the one-piece structure of the hammer head is innovatively changed into a hub and axle structure, and an impeller is set on the axle, so that without changing the overall weight of the hammer head, when the external force wind, rain, When external forces such as snow and hail act on the hammer head, the impeller can remove part of the external force, effectively reducing the large galloping of the wire, and solving the impact of the additional vibration and bending stress of the shockproof device itself on the wire. Due to the arrangement of the impeller and the compression spring, the inertia effect of the hammer head is enhanced, and the overall vibration prevention effect of the anti-vibration hammer is further improved. The setting of the impeller can also remove the gravitational effect of a part of external force on the hammer head downwards, which can prolong the service life of the lead wire and the hammer head.

Claims (7)

1. A connection structure of an anti-vibration hammer for overhead transmission wires, characterized in that the specific structure is as follows: the first wire (18) and the second wire (19) are arranged in parallel in the horizontal direction, and the first wire (18) is installed with a second One anti-vibration hammer (11) and the second anti-vibration hammer (14); The splint (13) is installed on the first wire (18), the third anti-vibration hammer (15) is installed on the second wire (19), and the clamp splint of the third anti-vibration hammer (15) passes through the second shock-absorbing spring (16 ) is connected with the second shock-absorbing splint (17), the second shock-absorbing splint (17) is installed on the second wire (19), and the wire splint of the second anti-vibration hammer (14) and the third anti-vibration hammer (15) A power transmission spring (20) is arranged between the wire clamp splints. the 2. The connection structure of an anti-vibration hammer for overhead power transmission wires according to claim 1, characterized in that the length of the first shock-absorbing spring (12) is 25 cm, and the clamp of the first anti-vibration hammer (11) The distance between the clamping plate and the clamping plate of the second anti-vibration hammer (14) is 60 centimeters, and the length of the second damping spring (16) is 60 centimeters. 3. The connection structure of a vibration-proof hammer for overhead power transmission wires according to claim 1, characterized in that the structure of the first shock-absorbing splint (13) and the second shock-absorbing splint (17) is the same as that of the wire clamp splint . 4. The connection structure of an anti-vibration hammer for overhead power transmission lines according to claim 1, characterized in that the first damping spring (12), the second damping spring (16) and the force transmission spring (20) All are compression springs. the 5. The connection structure of an anti-vibration hammer for overhead power transmission wires according to claim 1, characterized in that the structure of the anti-vibration hammer is as follows: it includes a clamp splint (6), a steel strand (7) and a hammer head ( 9), one end of the steel strand (7) is set inside the hammer head (9), and the other end of the steel strand (7) is tightly connected with the clamp splint (6). The structure of the hammer head (9) is as follows: The left wheel hub (1) and the right wheel hub (5) on both sides are provided with a wheel shaft (2) between the left wheel hub (1) and the right wheel hub (5), and a rotatable impeller (3) is set on the wheel shaft (2). A compression spring (8) is arranged between the hammer head (9) and the steel strand (7). 6. The connection structure of an anti-vibration hammer for overhead power transmission wires according to claim 5, characterized in that two compression springs (8) are arranged between the hammer head (9) and a steel strand (7) ), two compression springs (8) are respectively provided with one up and down. 7. The connection structure of an overhead power transmission wire anti-vibration hammer according to claim 5, characterized in that the outer edge of the blade (4) is 1.5- 2 cm, the blades (4) on the impeller (3) are equidistantly arranged.