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Material of elastic connector for composite insulator

A technology of elastic connectors and composite insulators, which is applied in the direction of insulators, rubber insulators, organic insulators, etc., can solve the problems of limiting the application of insulator sheds, the decline of insulation performance, and the damage of peripheral sheds, achieving superior insulation performance, simple structure, The effect of excellent performance stability

Active Publication Date: 2015-06-10
南京派拉斯曼工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its application is becoming more and more extensive. However, there are still some defects in the existing composite insulators. The components in the existing composite insulators are usually connected by bonding or pressing, and the firmness of the connection is limited. When the insulator is subjected to a large stress It is prone to damage and shortens its service life. In addition, due to structural and material reasons, the existing composite insulators can withstand very limited radial (perpendicular to the centerline) stress, which is easy to break and cause damage to the outer sheath. , thereby destroying the sealing, resulting in a decrease in insulation performance
These defects greatly limit the application of insulator sheaths, especially in the catenary system of electrified railway and urban rail transit. The stress of the insulator is in a changing state, and in order to ensure normal current flow, it is necessary to maintain sufficient contact pressure between the pantograph and catenary. Therefore, it has a higher impact on the strength of the composite insulator and the performance stability under dynamic stress. requirements

Method used

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  • Material of elastic connector for composite insulator
  • Material of elastic connector for composite insulator
  • Material of elastic connector for composite insulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A material for elastic connectors of composite insulators, comprising the following raw material components in parts by weight: 79 parts of natural rubber, 1 part of stearic acid, 3 parts of zinc oxide, 1 part of anti-aging agent, 4 parts of coumarone, carbon Black 12 parts. First, the natural rubber is masticated, and then other raw materials are added for mixing; then it is injected into the mold by an injection press, heated and pressurized for vulcanization. Performance tests were performed on the obtained materials. The structure shows that the obtained material has good insulation performance, mechanical performance, anti-aging and corrosion resistance.

Embodiment 2

[0044] A material for elastic connectors of composite insulators, comprising the following raw material components in parts by weight: 63 parts of natural rubber, 3 parts of stearic acid, 8 parts of zinc oxide, 2 parts of anti-aging agent, 6 parts of coumarone, carbon Black 18 parts. First, the natural rubber is masticated, and then other raw materials are added for mixing; then it is injected into the mold by an injection press, heated and pressurized for vulcanization. Performance tests were performed on the obtained materials. The structure shows that the obtained material has good insulation performance, mechanical performance, anti-aging and corrosion resistance.

Embodiment 3

[0046] As an option, the above materials include the following raw material components in parts by weight: 71.5 parts of natural rubber, 2 parts of stearic acid, 5 parts of zinc oxide, 1.5 parts of anti-aging agent, 5 parts of coumarone, and 15 parts of carbon black . First, the natural rubber is masticated, and then other raw materials are added for mixing; then it is injected into the mold by an injection press, heated and pressurized for vulcanization. Performance tests were performed on the obtained materials. The structure shows that the obtained material has good insulation performance, mechanical performance, anti-aging and corrosion resistance.

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Abstract

The invention discloses a material of an elastic connector for a composite insulator, and belongs to the field of a composite insulator material. According to the material provided by the invention, the structure of an existing composite insulator can be improved, a mandril, an umbrella cover and a connecting armour clamp are closely and integrally combined by installing an elastic connector, therefore the composite insulator has a certain elasticity and a good mechanical intensity, and can bear larger stress in an axial direction and in a radial direction, and has an excellent performance stability in a dynamic stress state; meanwhile, the material of the elastic connector of the composite insulator can be provided by optimizing a material formula, and the elastomer material is higher in elasticity, better in plasticity, better in mechanical intensity, better in flexing resistance and more excellent in insulating performance; furthermore, the material has excellent ageing resistance and decay resistance, therefore an application requirement of a novel composite insulator can be met well.

Description

technical field [0001] The invention belongs to the field of composite insulator materials, and in particular relates to a material used for elastic connectors of composite insulators. technical background [0002] The existing composite insulator is mainly composed of a resin mandrel, a synthetic material sheath, an umbrella skirt and connecting fittings at both ends. Compared with porcelain insulators, it has the advantages of high strength, good toughness, easy processing, good pollution resistance, and light weight. . Its application is becoming more and more extensive. However, there are still some defects in the existing composite insulators. The components in the existing composite insulators are usually connected by bonding or pressing, and the firmness of the connection is limited. When the insulator is subjected to a large stress It is prone to damage and shortens its service life. In addition, due to structural and material reasons, the existing composite insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/28H01B17/38H01B17/04C08L7/00C08L45/02C08K5/09C08K3/22C08K3/04
Inventor 文浩纪翔飞
Owner 南京派拉斯曼工程技术有限公司