Preplanning calculation method for integral dropper in elastic chain type suspension for overhead contact system

A calculation method and catenary technology, applied in the direction of overhead lines, etc., can solve the problems of inaccurate and unsuitable pre-configuration calculations of hanging strings, and achieve the effects of high degree of automation, reasonable use, and avoiding human errors

Active Publication Date: 2016-01-06
CHINA RAILWAY DESIGN GRP CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the invention is to provide a catenary elastic chain type suspension integral suspension string pre-allocation calculation method, which solves the inaccurate suspension string pre-allocation calculation existing in the prior art and is not suitable for high-speed railway catenary cranes. Problems with chord preconfiguration calculations

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  • Preplanning calculation method for integral dropper in elastic chain type suspension for overhead contact system
  • Preplanning calculation method for integral dropper in elastic chain type suspension for overhead contact system
  • Preplanning calculation method for integral dropper in elastic chain type suspension for overhead contact system

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Embodiment Construction

[0041] Specific embodiments of the invention will be described in detail below in conjunction with the accompanying drawings.

[0042] figure 1 is the schematic diagram of the elastic chain type suspension string, where F is the lifting force of the pantograph, and lt is the length of the elastic sling.

[0043] figure 2 is the schematic diagram of the force on the suspension string of the catenary cable, where F ia and F ib is the lifting force of the struts on the left and right sides of the i-th span to the catenary cables.

[0044] image 3 Is the schematic diagram of elastic sling force.

[0045] The calculation process of hanging string length is as follows:

[0046] The first step is to calculate the contact line height H CW :H CW =H 0 +H 1 +H 2 +H 3 ;

[0047] where H 0 It is the working height of the contact line, generally 5.3 meters; H 1 is the contact line height difference between the working branch and the non-working branch; H 2 is the contact l...

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Abstract

The invention provides a preplanning calculation method for an integral dropper in elastic chain type suspension for an overhead contact system. The method comprises following steps: 1, calculating the height of a contact wire; 2, calculating the pulling force of the dropper; 3, calculating the height of a carrier cable; 4, calculating the height of an elastic suspension cable; and 5, calculating the dropper blanking length. According to the invention, the length of the integral dropper is calculated through the calculation method based on a suspension cable model, a calculation process is reasonable and clear, calculation results are accurate, and the accuracy of factory manufacturing for the integral dropper is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of railway catenary suspension string preconfiguration, and in particular relates to a catenary elastic chain type suspension integral suspension string preconfiguration calculation method. Background technique [0002] At present, most electrified railways in my country adopt a simple chain suspension method with low tension. Due to the uneven elasticity at the anchor point of this suspension, the speed of the electric locomotive has not been improved, and can only be maintained at 120-160km / h. operate within the range. With the development of high-speed railways and passenger dedicated lines, the speed of locomotives has been greatly increased, and the contact pressure has become larger, which has worsened the current flow and aggravated it with the increase of vehicle speed. The original simple chain suspension can no longer meet the needs of high-speed railway development. Therefore, it is of great signi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M1/28
Inventor 白裔峰蒋先国崔校玉罗健邓洪魏博
Owner CHINA RAILWAY DESIGN GRP CO LTD
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