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High-precision ballast track carrier cable height measuring method

A technology of height measurement and load-bearing cable, applied in the direction of electric/magnetic thickness measurement, measuring device, electromagnetic measuring device, etc. Control, increase the convenience of operation, and facilitate the effect of storage

Pending Publication Date: 2022-03-04
CHINA RAILWAY CONSTR ELECTRIFICATION BUREAUGRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the catenary cable height error measured by the existing catenary cable height measurement method causes a large amount of adjustment work in the later stage of the catenary, the invention provides a high-precision catenary cable height measurement method for ballasted track

Method used

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  • High-precision ballast track carrier cable height measuring method
  • High-precision ballast track carrier cable height measuring method
  • High-precision ballast track carrier cable height measuring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] as attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 , attached Figure 8 As shown, the driving mechanism is a horizontally placed adjusting screw 6 arranged between two scissor brackets, the left part of the adjusting screw 6 is threadedly connected to the longitudinal pivot 4 on the left side; the right part of the adjusting screw 6 is threaded Connected to the longitudinal pivot 4 on the right side; the thread direction of the left part of the adjusting screw 6 is opposite to the thread direction of the right part of the adjusting screw 6; the left end of the adjusting screw 6 is fixedly sleeved with a cylindrical adjusting block 7.

[0068] When working, the operator rotates the adjustment block 7, which drives the adjustment screw 6 to rotate, thereby shortening the distance between the two longitudinal pivots 4, and the opening and closing degree of the two scissor brackets changes while the distance between the longitudinal pivots...

Embodiment 2

[0070] as attached Figure 5 , attached Image 6 As shown, the drive mechanism includes a telescopic hydraulic cylinder 8 and a hydraulic pump 9 communicating with the telescopic hydraulic cylinder 8; the hydraulic pump 9 is a manual hydraulic pump; the telescopic hydraulic cylinder 8 is arranged on two scissor brackets between, and the bottom of the base of the telescopic hydraulic cylinder 8 is hinged on the upper surface of the base plate 1 through a hinge seat; a connecting rod 10 is fixedly connected between the two scissor brackets, and the top end of the piston rod of the telescopic hydraulic cylinder 8 rotates Set in the middle of the connecting rod 10.

[0071] When working, the operator rotates the rocker of the hydraulic pump 9, which drives the piston rod of the telescopic hydraulic cylinder 8 to extend, and then drives the connecting rod 10 to move upward. When the connecting rod 10 moves upward, the opening and closing degree of the two scissor brackets changes....

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Abstract

The invention particularly relates to a high-precision ballast track carrier cable height measurement method, and solves the problem that the later adjustment workload of a contact network is large due to the fact that the carrier cable height error measured by the existing carrier cable height measurement method is large. The invention discloses a high-precision ballast track carrier cable height measuring method. The method is realized by adopting the following steps: S1, correcting a GPS (Global Positioning System) measuring instrument; s2, the actual elevation of the rail top of one steel rail is measured through a GPS measuring instrument; s3, calculating to obtain a difference value between the design elevation and the actual elevation of the rail top of the measured steel rail; s4, determining a design elevation; s5, the rail surface height of the steel rail is positioned through a rail surface positioning device; s6, the positioning rail surface height of the steel rail is rechecked through a GPS measuring instrument; and S6, measuring the height of the carrier cable. The rail surface positioning plate is used for positioning the design height of the rail surface of the steel rail, the measuring precision of the height of the carrier cable is improved, and the workload of later adjustment of the contact network is greatly reduced.

Description

technical field [0001] The invention relates to a measuring method for high-speed railway construction, in particular to a high-precision measuring method for the height of a catenary cable of a ballasted track. Background technique [0002] In the electrified railway construction standard, especially in the route standard with a design speed of 300km-350km / h, the accuracy of the suspension height of the catenary is high. The suspension string adopts the overall non-adjustable suspension string, and the calculation of the suspension string is mostly completed by calculation software. There are many factors that affect the calculation accuracy of the suspension string, mainly including line parameters, arm deflection, pull-out value, catenary height, etc. Among them, the height of the catenary cable, that is, the vertical distance from the catenary cable to the track surface, is obtained through on-site measurement. [0003] However, the practice shows that the existing cate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/06G01S19/42
CPCG01B7/06G01S19/42
Inventor 景毅王振文张亮付波杨砾岩王位魏星石琨白雄雄王云克冉云峰
Owner CHINA RAILWAY CONSTR ELECTRIFICATION BUREAUGRP