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A continuous seamless rigid contact suspension net system for rail transit and its installation method

A rigid contact and rail transit technology, applied in the direction of overhead lines, etc., can solve problems such as the degradation of the dynamic performance of the pantograph-catenary system, achieve the effects of reducing fault links and operation and maintenance workload, improving reliability, and simple structure

Active Publication Date: 2022-07-22
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the length change of the bus bar caused by the use of fractured anchor joints and expansion elements to compensate for temperature changes in the existing rigid catenary suspension system. This method will deteriorate the dynamic performance of the pantograph-catenary system at high speeds, and provide A rail transit rigid catenary suspension system and its installation method

Method used

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  • A continuous seamless rigid contact suspension net system for rail transit and its installation method
  • A continuous seamless rigid contact suspension net system for rail transit and its installation method
  • A continuous seamless rigid contact suspension net system for rail transit and its installation method

Examples

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Effect test

Embodiment 1

[0041] A rail transit rigid catenary suspension system includes an expansion section 1 and an insulating anchor joint 6 . The two adjacent expansion sections 1 are fixedly connected by an anchoring joint 6, the anchoring joint 6 has a "T"-shaped structure, and the anchoring joint 6 is also fixedly connected with the support structure. The system consists of multiple expansion sections 1. like image 3As shown, the bending directions of the two expansion sections 1 connected by the anchor joint 6 are opposite, and the smooth transition forms a wave shape (preferably, the wave shape is a sine wave), so that the expansion section 1 acts on the anchorage due to the bending deformation The forces on the joint 6 can cancel each other out. The expansion section 1 includes a bus bar connected by welding, a contact wire is installed in the bus bar, and the bus bar and the contact wire form a rigid contact network; a plurality of sliding positioners 5 are also connected to the bus bar...

Embodiment 2

[0046] An installation method for a continuous seamless rigid contact suspension net system for rail transit, comprising step S1: according to line conditions (the line is a straight line, a curve and an easing curve), the highest and lowest temperature of the operating line environment, and the allowable temperature of the expansion section 1 when working Maximum pull-out value Z max with the minimum pull-out value Z min , calculate the distance between the two adjacent anchor joints 6; S2: Install the anchor joint 6 on the support structure according to the distance between the two adjacent anchor joints 6, and install the sliding positioning on the support structure between the two anchor joints 6 Device 5; S3: Determine the value range of the initial pull-out value of the expansion section 1 according to the annual average air temperature at the installation site; S4: Fix one end of the expansion section 1 (that is, one end of the busbar in the expansion section 1) on the ...

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Abstract

The invention relates to the field of rail transit, in particular to a continuous seamless rigid contact suspension net system for rail transit and an installation method thereof, comprising an anchor joint and a plurality of expansion sections, and two adjacent expansion sections are connected by an anchor joint, and the The anchor joint is fixedly connected with the support structure; the expansion section includes a bus bar and a sliding positioner, the bus bar is bent and arranged in a plane parallel to the rail surface, and a plurality of the sliding positioners are arranged on the bus bar, so The sliding positioner is connected to the support structure, and the sliding positioner can keep the busbar horizontal and allow the busbar to slide in a direction perpendicular to the line. When the temperature of the working environment changes, the invention can automatically compensate the expansion and contraction change of the length of the expansion section through the bending deformation of the expansion section, cancel the expansion joint, improve the current receiving conditions of the pantograph, and reduce the impact of the expansion joint on the dynamic performance of the pantograph. influences.

Description

technical field [0001] The invention relates to a catenary suspension system, in particular to a continuous seamless rigid catenary suspension net system for rail transit and an installation method thereof. Background technique [0002] The catenary is a high-voltage transmission line erected above the railway line (hereinafter referred to as the line) in the electrified railway for the pantograph to draw current. The current rigid catenary suspension system is composed of contact wires of traditional sizes directly clamped to rigid alloy conductor rails (hereinafter referred to as bus bars). The busbar is made into small segments with a certain standard length (12m), and each segment is connected by an intermediate joint to form a whole busbar segment. [0003] In view of the expansion and contraction effect of materials on temperature changes, the bus bar generally consists of multiple anchor sections, the length of which is usually 200-600m, and the suspension installati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60M1/26B60M1/24
CPCB60M1/26B60M1/24
Inventor 唐元方阙明杨佳汪清林宗林冉维可钟源陈可范荣鑫袁勇余霞肖琨姜月虹贺毅陈纪刚周莉
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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