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Bus brace and pantograph brace porcelain insulator on roof of electric locomotive

A technology for electric locomotives and insulators, applied to electric vehicles, current collectors, vehicle components, etc., to achieve the effects of reducing collision and capture rates, improving performance, and reducing deformation

Inactive Publication Date: 2015-05-06
ZHUZHOU DINGSHUN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to propose a new locomotive roof porcelain insulation method and porcelain insulator for the shortcomings of the existing electric locomotive roof porcelain insulators. The insulator can completely change the current status of locomotive roof insulation and effectively eliminate the problem of pollution flashover of porcelain insulators

Method used

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  • Bus brace and pantograph brace porcelain insulator on roof of electric locomotive
  • Bus brace and pantograph brace porcelain insulator on roof of electric locomotive
  • Bus brace and pantograph brace porcelain insulator on roof of electric locomotive

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Embodiment 1

[0040] attached figure 1 A technical embodiment of the present invention is given. It can be seen from the accompanying drawings that the present invention is a porcelain insulator for the roof of an electric locomotive, including an upper attachment 1, a non-circular porcelain part 2, and a lower attachment 3; the non-circular porcelain part 2 is made of high-strength ceramics, and the non-circular Porcelain piece 2 is the shape of multi-layer umbrellas and big and small umbrellas that are separated in an orderly manner. The upper layer of homogeneous self-cleaning glaze; the upper attachment 1 and the lower attachment 3 are made of corrosion-resistant high-strength metal materials, and their cooperation with the non-circular porcelain part 2 is also non-circular; the busbar pillars and During the operation of the pantograph support porcelain insulator, the non-circular long axis direction is installed along the direction of the vehicle. This arrangement is beneficial to eli...

Embodiment 2

[0055] The basic structure of the second embodiment is the same as that of the first embodiment, except that the tower insulators in which the multi-layer sheds and the big and small umbrellas are separated in an orderly manner are that the shed length of any longitudinal section of the uppermost shed of the insulator is longer than that of the same longitudinal section below it. The umbrella length of the sectional skirt.

[0056] The formula has also been adjusted, the porcelain insulator is made of high alumina porcelain, AL 2 o 3 The content is 61~65%, and pure industrial alumina powder is used, the sintering temperature is SK61310℃±5℃, and the bulk density is 3.0~3.5t / m 3 .

[0057] The porcelain insulator is made according to the following material formula (calculated by weight percentage):

[0058] Activated calcined alumina powder 59%

[0059] Kaolin 18%

[0060] Feldspar 12%

[0061] Talc 5%

[0062] Zirconium silicate 6%

[0063] Among them, 325~1250 mesh, fi...

Embodiment 3

[0065] The basic structure of the third embodiment is the same as that of the first embodiment, except that the structure is a hollow structure, and the formula is adjusted. The material of the porcelain insulator is high alumina porcelain, AL 2 o 3 The content is 61~65%, and pure industrial alumina powder is used, the sintering temperature is SK61310℃±5℃, and the bulk density is 3.0~3.5t / m 3 .

[0066] The porcelain insulator is made according to the following material formula (calculated by weight percentage):

[0067] Activated calcined alumina powder 57%

[0068] Kaolin 20%

[0069] Feldspar 10%

[0070] Talc 8%

[0071] Zirconium silicate 5%

[0072] Among them, 325~1250 mesh, fineness≦2um≧85% pure industrial alumina is used as the main raw material; screening plasticity index≧2.0, plasticity index≧20, dry strength≧3 / Mpa, aluminum oxide (AL 2 o 3 ) content≧37%, Fe 2 o 3 Kaolin with a content of ≦0.8%, and an appropriate amount of zirconium silicate to increase t...

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Abstract

The invention provides a bus brace and pantograph brace porcelain insulator on a roof of an electric locomotive. The insulator comprises an upper accessory, non-circular porcelain and a lower accessory. The non-circular porcelain is high-strength porcelain and is in a shape formed by arranging multilayer umbrellas, large umbrellas and small umbrellas in order at intervals, the cross sections of multilayer umbrella skirts and rod diameters of the non-circular porcelain are in non-circular streamline shapes, and a layer of homogenous self-cleaning glaze is applied to the surface of the non-circular porcelain. The upper accessory and the lower accessory are made of anti-corrosion high-strength metal materials and are in non-circular fit with the non-circular porcelain. When the bus brace and pantograph brace porcelain insulator on the roof of the electric locomotive run, a non-circular long shaft is installed in the locomotive traveling direction, a vortex negative pressure zone of the leeward surface of the insulator can be effectively eliminated through the arrangement, the dirt deposition phenomenon of pollutants in the leeward surface region of the insulator is reduced, and the phenomena of pollution flashover, wet flashover and ice flashover caused by the bus brace and pantograph brace porcelain insulator on the roof of the electric locomotive are avoided.

Description

technical field [0001] The invention relates to an insulation method and a component device of an electric locomotive, in particular to an insulation method for an electric locomotive roof insulator and a porcelain insulator, which are mainly used in an electric locomotive roof insulation system. Background technique [0002] In the power system, the solid insulating material used to support and suspend high-voltage conductors is called an insulator. The insulator on the roof of an electric locomotive refers to an insulator that supports the pantograph to receive current from the catenary contact wire from the electric vehicle. Electric locomotive roof insulators are the main guarantee for the insulation performance of electric locomotives and electric vehicles. According to statistics, the locomotive failure rate of electric locomotives caused by insulation degradation accounts for more than 25% of all types of failures. As roof insulators that withstand high voltage , Freq...

Claims

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Application Information

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IPC IPC(8): B60L5/22
Inventor 殷杨合
Owner ZHUZHOU DINGSHUN NEW MATERIAL TECH CO LTD
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