End accessory structure of combined insulator and manufacturing method thereof

A composite insulator and insulator technology, applied in insulators, suspension/strain insulators, electrical components, etc., can solve the problems of potential safety hazards, poor quality stability, easy to loose, brittle cracks, etc., to improve insulation reliability, reduce Weight, effect for a wide range of applications

Inactive Publication Date: 2008-04-09
GUANGZHOU TIMES RUBBER & PLASTIC ENTERPRISE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The end connection structure of the composite insulator adopts the crimping assembly process to connect the mandrel of the insulator with the end accessories, as shown in Figure 2. This connection method has poor quality stability and is prone to loosening and brittle cracks. Hidden dangers are a major problem in the current composite insulator technology at home and abroad

Method used

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  • End accessory structure of combined insulator and manufacturing method thereof
  • End accessory structure of combined insulator and manufacturing method thereof

Examples

Experimental program
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Embodiment Construction

[0025] As shown in Figure 2, it is a traditional insulator end attachment structure.

[0026] As shown in Figure 1, the composite insulator includes a mandrel 11 and a shed shed 12, and the end attachment structure of the composite insulator includes an expansion cone 4, a cone sleeve 3, and a connection accessory 5, wherein: the expansion cone 4 is inserted into the mandrel On the inner surface of both ends of 11 , the taper sleeve 3 is sleeved on the end of the mandrel 11 , and the connecting accessory 5 is sleeved at the interface between the taper sleeve 3 and the umbrella skirt sleeve 12 .

[0027] As shown in Figure 3, the expansion cone 4 includes two parts, one part is a guide cylinder with the diameter of the small hole provided at the end of the mandrel 11, and the other part is a cone whose diameter gradually increases, and the size of the cone is based on Request settings.

[0028] As shown in FIG. 6 , a stop step 31 is provided on the outer circle of the cone sle...

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PUM

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Abstract

The invention relates to a terminal accessory structure of a composite insulator and a manufacturing thereof. The structure comprises an expansion cone inserted inside two ends of the mandrel of the insulator, a cone cover and a connection accessory sheathed outside the periphery of the end portion of the insulator, wherein the cone cover is a pipe-shaped element and is provided with stop steps on the outer round portion of the cover; a mount cover capable of sheathing the cone cover is arranged at the assembly position of the connection accessory; the connection accessory is sheathed on the cone cover through the mount cover; and the mount cover can contract to hoop the cone cover by radically pressing the mount cover. The method comprises processing small holes on two end faces of the mandrel of the insulator; sheathing the cone cover on the mandrel from the side having columnar holes; heating, and pressing the expansion cone into the small holes; and sheathing the mount cover of the connection accessory into the cone cover, radically pressing the mount cover by use of press-fit equipment to hoop the cone cover. The invention radically overcomes the difficulty of the world for hanging composition insulator, and solves the technical problem of crack and internal tearing of the mandrel due to expansion deformation, thereby achieving non-destructive deformation and improving the insulation reliability.

Description

technical field [0001] The invention relates to the technical field of composite material insulators, in particular to an end attachment structure of a composite insulator and a manufacturing method thereof. Background technique [0002] The function of the insulator is to separate the conductors with different potentials so that the current can flow in a certain direction. The end attachment of the insulator is the connection and installation part of the insulator and the transmission line, pole, electrical appliance, etc. During long-term use, it not only has to bear compression, tension, bending, torsion, etc. Therefore, the connection structure between the end accessories and the insulator is related to the quality and performance of the product, and it is also an important symbol of whether the product can be used safely. The high-voltage insulators used in traditional power systems or electrified railway catenary systems are mostly made of inorganic materials such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/38H01B17/04H01B19/00
Inventor 谢学文
Owner GUANGZHOU TIMES RUBBER & PLASTIC ENTERPRISE
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