A high-voltage transmission tower with cable sag adjustment

Abstract

The invention discloses a high-voltage transmission tower with cable sag adjustment. There are several connecting rods for temporarily fixing the left movable cross arm and the right movable cross arm, the two ends of the connecting rod are provided with clamping blocks, and the left movable cross arm and the right movable cross arm are provided with several concave holes for engaging the clamping blocks. Groove; when the wind force is greater than the preset value, when the wind drives the impeller to rotate, the block is disengaged from the groove, the left movable cross-arm and the right movable cross-arm move toward each other, and the cable is tightened. When the wind force exceeds the preset wind force value, then under the action of the speed increaser, the connecting rod comes out with the block, and the left movable cross arm and the right movable cross arm on both sides of the tower body can slide relative to each other, so that they can be tightened again Cables reduce the drape of the cables, and the connecting rod enters the next groove with the clamping block for fixing, preventing the left movable cross arm and the right movable cross arm from sliding relative to each other again.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission towers, in particular to a high-voltage transmission tower with cable sag adjustment. Background technique [0002] The 110KV~220KV high-voltage transmission tower is an important way of power transmission in my country. With the development of the economy, the stable development of the national power industry has a direct relationship with the economic development of our country. [0003] The high-voltage transmission tower mainly plays the role of fixing and supporting cables, and the cable sag during the cable fixing process is one of the more important control indicators. The cable is prone to sagging due to its own gravity and other effects during use. As the sag of the cable increases, the shaking range of the cable will also increase. When the sag of the cable is large, the cable will shake greatly under the influence of the wind force. Under the action of the inertia of ...

AI Technical Summary

Problems solved by technology

When the sag of the cable is large, the cable will shake greatly under the influence of the wind force. Under the action of the inertia of the cable dancing, the force on the transmission tower will increase sharply, which will seriously cause the high-voltage transmission tower to break and collapse.

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