Lightning arrester core winding device and winding method

Abstract

The invention discloses a lightning arrester core winding device and a winding method. The lightning arrester core winding device comprises a braiding machine, wherein the braiding machine comprises amachine frame, a spindle and a core pipe and a limiting mechanism, a damping mechanism and a cutting device are sequentially arranged on one side of the braiding machine; the limiting mechanism comprises a first support, a first guide pipe is arranged in the first support, one side of the first guide pipe is fixedly connected with a limiting ring, and the core pipe penetrates out of a lightning arrester core, penetrates through the limiting ring and then enters the first guide pipe; and the damping mechanism comprises a frame, a plurality of grooved pulleys are arranged in the frame, each grooved pulley is connected with the frame through an elastic mechanism, and each elastic mechanism pushes the corresponding grooved pulley in different directions to abut against the lightning arrestercore. According to the invention, the existing radial spiral winding glass fiber belt is changed into a net pipe-shaped winding glass fiber belt, so that axial tension and pressure relief grid holes are provided for the lightning arrester core, the mechanical strength of the lightning arrester is improved, and the explosion of the lightning arrester is prevented.

Description

technical field [0001] The invention relates to a lightning arrester core winding device and winding method. Background technique [0002] The core body of the arrester includes an intermediate body composed of multiple resistance sheets arranged in sequence, electrode sheets are respectively arranged at both ends of the intermediate body, and a multi-layer epoxy resin-impregnated glass fiber tape is spirally wound outside the intermediate body and the electrode sheet. The winding angle of the glass fiber tape is about 60~90 degrees. The disadvantages of this winding form are: on the one hand, the resistors have no axial tension force, so when the arrester is overheated and expanded and cooled, gaps are likely to appear between the resistors, making the Poor contact between resistor sheets or explosion occurs. On the other hand, the overall mechanical strength of the arrester with radial spiral wound core needs to be further improved. Contents of the invention [0003] Th...

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Problems solved by technology

[0002] The core body of the arrester includes an intermediate body composed of multiple resistance sheets arranged in sequence, electrode sheets are respectively arranged at both ends of the intermediate body, and a multi-layer epoxy resin-impregnated glass fiber tape is spirally wound outside the intermediate body and the electrode sheet. The winding angle of the glass fiber tape is about 60~90 degrees. The disadvantages of this winding form are: on the one hand, the resistors have no axial tension force, so when the arrester is overheated and expanded and cooled, gaps are likely to appear between the resistors, making the Poor contact between resistor sheets or explosion, on the other hand, the overall mechanical strength of the arrester with radial spiral winding core needs to be further improved

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