A transmission tower and insulator connection device with frequency modulation and amplitude modulation functions

Abstract

The invention relates to a transmission tower-insulator connecting device with frequency modulation and amplitude modulation functions. The two ends of the connecting device are respectively connectedwith a cross arm and an insulator. The connecting device comprises two connecting end plates, a plurality of spring and a damping unit that are arranged between the two connecting end plates. The damping unit include two dampers arranged in opposite; the upper end of the damper I is fixed at the bottom of the upper connecting end plate and the lower end of the damper II is fixed at the top of thelower connecting plate; and constraint units for preventing the damper I and the damper II from horizontal movement are arranged outside the damper I and the damper II. Compared with the prior art, the transmission tower-insulator connecting device has the following beneficial effects: the connecting device having a reasonable structure is easy to manufacture and is convenient to install; the connecting device can be applied to transmission tower line systems widely to reduce wire vibration and thus reduce the dynamic effect transmitted to the power transmission tower by the wire; and the spectral energy overlapping of the transmission tower and the wire in the tower line system can be reduced, so that the coupling effect of the transmission tower and the wire is weakened and thus the wind-resistant performance of the device is enhanced.

Description

technical field

[0001] The invention relates to the technical field of power transmission line devices, in particular to a power transmission tower and an insulator connection device with frequency modulation and amplitude modulation functions. Background technique

[0002] The transmission tower-line system is composed of transmission towers, conductor (ground) wires, insulators and fittings, and has the characteristics of a tower-like structure and a large-span structure.

[0003] The structure of the transmission tower is high and flexible, and the span of the transmission wire is large, which determines that the transmission line itself is a wind load sensitive structure. In our country, the national energy distribution is unbalanced, the geographical difference between the load center and the power generation center, and the demand for electricity is increasing year by year with the sustained and rapid economic development, so high-voltage, ultra-high-voltage, and ultra...

Examples

Embodiment 1

[0025] A transmission tower and insulator connection device with frequency modulation and amplitude modulation functions, its structure is as follows figure 1 As shown, the upper end of the connection device is connected to the cross arm 9 through the universal ball joint 1, and the lower end is connected to the suspension type insulator string 8. The two springs 3 and the damping unit 4 between the end plates, the damping unit 4 includes two oppositely arranged dampers, wherein the upper end of the No. 1 damper 41 is fixed on the bottom of the upper connecting end plate 21, and the upper end of the No. 2 damper 42 The lower end is fixed on the top of the lower connecting end plate 22, and the outside of the No. 1 damper 41 and the No. 2 damper 42 is provided with a spiral hoop 7 for preventing the No. 1 damper 41 and the No. 2 damper 42 from moving horizontally.

[0026] The insides of No. 1 damper 41 and No. 2 damper 42 are provided with arc-shaped protrusions 10, and the ar...

Embodiment 2

[0030] The same connection device as in Example 1 is used, the difference is that the transmission tower in this embodiment uses a V-shaped insulator string 7, so both ends of the V-shaped insulator string are connected to the cross arm 9 through a connection device, the working principle and implementation Example 1 is the same.

technical field

[0001] The invention relates to the technical field of power transmission line devices, in particular to a power transmission tower and an insulator connection device with frequency modulation and amplitude modulation functions. Background technique

[0002] The transmission tower-line system is composed of transmission towers, conductor (ground) wires, insulators and fittings, and has the characteristics of a tower-like structure and a large-span structure.

[0003] The structure of the transmission tower is high and flexible, and the span of the transmission wire is large, which determines that the transmission line itself is a wind load sensitive structure. In our country, the national energy distribution is unbalanced, the geographical difference between the load center and the power generation center, and the demand for electricity is increasing year by year with the sustained and rapid economic development, so high-voltage, ultra-high-voltage, and ultra...

Examples

Embodiment 1

[0025] A transmission tower and insulator connection device with frequency modulation and amplitude modulation functions, its structure is as follows figure 1 As shown, the upper end of the connection device is connected to the cross arm 9 through the universal ball joint 1, and the lower end is connected to the suspension type insulator string 8. The two springs 3 and the damping unit 4 between the end plates, the damping unit 4 includes two oppositely arranged dampers, wherein the upper end of the No. 1 damper 41 is fixed on the bottom of the upper connecting end plate 21, and the upper end of the No. 2 damper 42 The lower end is fixed on the top of the lower connecting end plate 22, and the outside of the No. 1 damper 41 and the No. 2 damper 42 is provided with a spiral hoop 7 for preventing the No. 1 damper 41 and the No. 2 damper 42 from moving horizontally.

[0026] The insides of No. 1 damper 41 and No. 2 damper 42 are provided with arc-shaped protrusions 10, and the ar...

Embodiment 2

[0030] The same connection device as in Example 1 is used, the difference is that the transmission tower in this embodiment uses a V-shaped insulator string 7, so both ends of the V-shaped insulator string are connected to the cross arm 9 through a connection device, the working principle and implementation Example 1 is the same.

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