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A method for testing the crimping quality of fittings at the end of composite insulators

A technology for composite insulators and crimping quality, which is applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of not being able to accurately detect the crimping quality of composite insulator end fittings, and achieve practicality Strong resistance, adjustable tensile load, sensitive detection effect

Active Publication Date: 2019-07-12
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no device that can accurately detect the crimping quality of the metal fittings at the end of composite insulators

Method used

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  • A method for testing the crimping quality of fittings at the end of composite insulators
  • A method for testing the crimping quality of fittings at the end of composite insulators
  • A method for testing the crimping quality of fittings at the end of composite insulators

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Embodiment Construction

[0025] Such as Figure 1 to Figure 4 As shown, a system for detecting the quality of metal crimping at the end of a composite insulator according to the present invention includes a horizontal lathe 1 and a tie rod 5 arranged in the horizontal lathe 1. The axial setting of the type lathe 1, the tensile load device 6 and the torsional load device 4 are both sleeved on the two pull rods 5, in this embodiment, the tensile load device 6 is arranged on the right side of the torsional load device 4, and the The tensile load device 6 is used to provide tensile force for the composite insulator to be tested, and detect the deformation of the composite insulator to be tested under the condition of tensile force. The sample end of the torsional load device 4 is connected to one end of the composite insulator to be tested. The other end of the composite insulator to be tested is connected to the mobile locking device 2, and the torsional load device 4 is used to provide torsional force f...

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Abstract

The invention provides a system and a method for detecting the crimping quality of an end fitting of a composite insulator. The system comprises a horizontal lathe and a pull rod arranged in the horizontal lathe, wherein a tensile load device used for providing pull force for a to-be-detected composite insulator and a torsion load device for providing torsional force for the to-be-detected composite insulator are sequentially arranged on the pull rod in a sleeving manner; a sample end of the torsion load device is connected with one end of the to-be-detected composite insulator, and the other end of the to-be-detected composite insulator is connected with a mobile locking device; a testing device used for acquiring the deformation condition generated when a material of the to-be-detected composite insulator is damaged is further arranged at the sample end of the torsion load device; the output end of the testing device is connected with a computer. The system and the method are used for analyzing the crimping condition of the end fitting of the composite insulator by simulating the static tensile load and the dynamic torsional load borne by the composite insulator in the actual on-line operation process and by comprehensively utilizing the detecting device.

Description

technical field [0001] The invention relates to the technical field of performance detection of composite insulators, in particular to a system and method for detecting the crimping quality of fittings at the ends of composite insulators. Background technique [0002] The end of the composite insulator is formed by crimping the glass epoxy resin mandrel and the end fittings, and the crimping part mainly relies on the friction force between the end fittings and the glass epoxy resin mandrel to form a stable connection. In the production process of insulators, there are often unqualified products such as poor interface crimping quality and weak crimping between the mandrel and the sheath. After moisture enters, it is easy to cause damage to the glass epoxy resin mandrel and composite insulator sheath. Under the action of tensile load and dynamic torsional load, the corrosion and aging of composite insulators may lead to fracture accidents of composite insulators. Many studies...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/10G01N3/26
CPCG01N3/10G01N3/26G01N2203/0026G01N2203/0075G01N2203/0658
Inventor 卢明赵书杰刘泽辉杨丁吕中宾杨威庞锴耿进锋褚双伟黄杰赵鹏飞刘相霞杨光杰
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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