Bending moment-free anti-pollution high-speed segmenting and phase-splitting isolator

Abstract

The invention belongs to equipment used in an electrified railway contact system, in particular to a bending moment-free anti-pollution high-speed segmenting and phase-splitting isolator, which is characterized by comprising a joint wire clamping plate (1), a joint wire clamp connecting plate (2), a connecting plate (3), a short sliding plate (4), a long sliding plate (10), a starting rod A (5), astarting rod B (5), a frame (6), an insulating sliding plate (7), silicon rubber isolators (8) and a fastening standard component (9), wherein the joint wire clamping plate (1) clamps a contact wire;and stressed axes of two silicon rubber isolators (8), the axes of connecting bolts at two ends of the connecting plate (3) and the groove of a contact lead are in the same axis. A pantograph of thebending moment-free anti-pollution high-speed segmenting and phase-splitting isolator can smoothly pass through at a high speed without generating bending moment, pantograph scratch and pantograph drilling. The bending moment-free anti-pollution high-speed segmenting and phase-splitting isolator cannot worn by the pantograph, has no pollution and cannot be burnt out by an electric arc.

Description

technical field [0001] The invention belongs to a device used in an electrified railway catenary system, in particular to a non-bending moment anti-pollution type high-speed segmented and phase-separated insulator. Background technique [0002] At present, the sectional insulators used in domestic electrified railway catenary are diamond-shaped sectional insulators, whose structure forms a symmetrical rhombus, and no bowing will occur. However, the insulation slideway of this segmented insulator is polluted by carbon slides and pantograph slides coated with lubricating oil, causing the segmented insulator to be easily burned. In addition, the force of this segmented insulator is not on the same axis. Under the state of tension, a bending moment is generated, causing the middle part of the section insulator to bend downwards, resulting in a hard point. The above-mentioned problems also exist in domestic phase-splitting insulators. [0003] The French segmented insulator is u...

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Problems solved by technology

However, the insulation slideway of this segmented insulator is polluted by carbon slides and pantograph slides coated with lubricating oil, causing the segmented insulator to be easily burned. In addition, the force of this segmented insulator is not on the same axis. Under the state of tension, a bending moment is generated, causing the middle part of the segmented insulator to bend downward, resulting in a hard point. The above-mentioned problems also exist in the domestic phase-separated insulators.

[0003] The French segmented insulator is used domestically, and the insulating element does not touch the pantograph, which overcomes the problem of the insulating element being polluted by the carbon slide plate or the pantograph slide plate coated with lubricating oil, but the three insulators of this type of segmental insulator form a triangular shape. The upper insulator is easily burned by the arc

Since the force of this segmented insulator is not on the same axis, a bending moment is generated under tension, and the four ends of the diversion slideway at the opening move down, which is easy to hit the pantograph

[0004] There is also an open-type segmented and phase-separated insulator used on the Daqin Railway Line. There are two light rod insulators in the middle, and the insulator jacket is made of polytetrafluoroethylene. A bending moment is generated when the two light rod insulators are bent downward. The PTFE jacket is worn by the pantograph for a long time, and water seeps into the mandrel, causing the insulators to be often broken down and burned.

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