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a suspension insulator

A technology of suspension insulators and insulators, applied in the direction of suspension/strain insulators, can solve problems such as high strength and rigidity requirements, local umbrella damage, product scrapping, etc., and achieve reasonable hardware design, improved quality stability, and increased strength. Effect

Active Publication Date: 2016-09-21
赛思迈(上海)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The higher the voltage level, the higher the height of the suspension insulator, and the higher the strength and rigidity requirements, especially in the process of assembly and maintenance, there are many shortcomings in the traditional silicone rubber insulator
Due to the low hardness and low strength of the silicone rubber insulator, the traditional silicone rubber insulator is easy to cause damage during the assembly process, especially in the high voltage level, due to the long length of the insulator, it is easy to cause damage to the partial umbrella, resulting in product scrapping

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, an epoxy insulator includes a pultruded mandrel 1, fittings 2 at both ends of the mandrel 1, and an epoxy resin umbrella skirt 3 on the outer surface. The fittings 2 are designed with reinforcing grooves 4; The apparatus molds a flexible (20% elongation) epoxy onto mandrel 1 .

[0023] In this embodiment, the fittings are designed with reinforced grooves, and the bottom of the reinforced grooves is designed in a circular arc shape. The reinforced grooves only strengthen the insulator, and the bottom of the reinforced grooves is circular-arc-shaped to increase the diversion effect.

[0024] In this embodiment, the arc-shaped design of the bottom of the fitting can effectively increase the filling of the epoxy glue in the reinforcement groove, so that the glue can fully fill all parts of the reinforcement groove.

[0025] In this embodiment, the mandrel 1 is epoxy resin and / or non-alkali glass fiber mandrel.

[0026] In this embodiment, the ou...

Embodiment 2

[0030] Such as figure 2 As shown, in this embodiment, the two ends of the mandrel 1 are crimped with the fittings 2 with diversion grooves, and then the epoxy resin with an elongation rate of about 20% is formed on the surface of the mandrel 1 into an umbrella skirt by using APG equipment.

[0031] In actual production, the mandrel 1 is first extruded and formed, and then the fittings 2 are crimped at both ends of the mandrel 1 according to the actual situation. In the middle of the mandrel, use APG equipment to inject the epoxy resin umbrella skirt 3. The elongation rate of the epoxy resin used for injection molding is 20%, the molding temperature is 150°C, and the molding time is 15min. Processing 2h. Epoxy resin needs to have specific performance requirements (mechanical performance, electrical performance, process performance) during molding, and vacuum degassing is required before injection. In this embodiment, the manufacturing process of the remaining parts is the sa...

Embodiment 3

[0033] Such as figure 1 As shown, in this embodiment, both ends of the mandrel 1 are crimped with metal fittings 2 with reinforcing grooves, and then an epoxy resin with an elongation rate of 50% is molded into an umbrella skirt on the surface of the mandrel 1 by using APG equipment.

[0034] In actual production, the mandrel 1 is first extruded and formed, and then the fittings 2 are crimped at both ends of the mandrel 1 according to the actual situation. In the middle of the mandrel, use APG equipment to inject the epoxy resin umbrella skirt 3. The elongation rate of the epoxy resin used for injection molding is 50%, the molding temperature is 120°C, and the molding time is 20min. Processing 2h. Epoxy resin needs to have specific performance requirements (mechanical performance, electrical performance, process performance) during molding, and vacuum degassing is required before injection. In this embodiment, the manufacturing process of the remaining parts is the same as t...

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Abstract

The invention belongs to the technical field of high-voltage power transmission and transformation, and in particular relates to a suspension insulator. The invention discloses a suspension insulator, which comprises a mandrel 1 and fittings 2 at both ends thereof and an umbrella shed 3. The mandrel is made of epoxy resin and / or alkali-free glass fiber, and the shed 3 is made of flexible epoxy resin. APG equipment molding. The suspended insulator provided by the invention has simple structure, reasonable design and high molding efficiency. After molding, the overall rigidity of the insulator has been greatly improved. Compared with silicon rubber insulators, epoxy resin insulators have the advantages of easy maintenance and bird-proof pecking.

Description

【Technical field】 [0001] The invention belongs to the technical field of high-voltage power transmission and transformation above 110KV, and in particular relates to a suspension insulator. 【Background technique】 [0002] Compared with silicone rubber insulators, epoxy resin insulators have the characteristics of high strength, good rigidity, and anti-bird pecking. They are more and more widely used in high-voltage power transmission and transformation. With the continuous development of my country's power transmission technology to high voltage, long distance, and high capacity, the requirements for convenience and reliability of maintenance are getting higher and higher. The higher the voltage level, the higher the height of the suspension insulator, and the higher the strength and rigidity requirements, especially in the process of assembly and maintenance, there are many shortcomings in the traditional silicone rubber insulator. Due to the low hardness and low strength ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/02
Inventor 张卓陈新谢瑞广刘辉张翀于凡
Owner 赛思迈(上海)新材料科技有限公司
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