A rail transit catenary compensation monitoring device and monitoring method

Abstract

The application discloses a rail transit catenary compensation monitoring device and monitoring method, including horizontal upper and lower brackets arranged at intervals on the pillars, and the horizontal upper and lower brackets are respectively located on the upper and lower sides of the counterweight of the contact line and the counterweight of the catenary cable. In the lower part, the first and second distance measuring sensors are arranged on the horizontal support, and the third and fourth distance measuring sensors are arranged on the horizontal lower support; The data signals of the third and fourth ranging sensors are controlled by the host computer. The application has the advantages of simple structure, easy installation, high measurement accuracy and fast monitoring speed. It is convenient for the maintenance personnel to quickly know the status of each catenary anchor compensation device, which provides a basic basis for the maintenance of the catenary anchor compensation device, facilitates accurate analysis and prediction, timely eliminates hidden dangers, and prevents major accidents; effectively reduces inspections volume, greatly improving work efficiency and reducing maintenance costs.

Description

technical field [0001] The present application relates to the field of rail transit technology, in particular to a rail transit catenary compensation monitoring device and monitoring method. Background technique [0002] In recent decades, my country's railway transportation and urban rail transit construction have developed rapidly; as of the end of 2019, in terms of urban rail transit, 39 cities in my country have opened subways, with a total operating mileage of 6,600 kilometers; in terms of national railways , The railway operating mileage reached 139,000 kilometers, including 35,000 kilometers of high-speed rail, ranking first in the world. [0003] Since the corresponding electrified equipment along the railway line is required to provide power guarantee for the train, the electrified railway came into being along with the electric locomotive. The catenary overhead flexible suspension in the electrified railway consists of three parts: contact suspension, catenary supp...

AI Technical Summary

Problems solved by technology

[0004] The existing catenary anchoring compensation devices connect the counterweight of the catenary cable and the counterweight of the catenary cable through a group of pulling pulleys at the terminals of the catenary cable and the contact line, and then the counterweight of the catenary cable and the contactor The line counterweight is used to drive the traction pulley block to tighten the load-bearing cable and the contact line to overcome the elongation or shortening of the thread due to the influence of temperature changes; although the pulley block can increase the transmission ratio and reduce the number of counterweight strings, However, the distance of the counterweight string will also increase by multiples when it rises and falls. When the lifting of the counterweight string exceeds the allowable range (such as: falling too much so that the bottom of the counterweight string touches the ground, or rising too much so that the weight string If the earring hole at the upper end of the hanging rod is stuck in the groove of the fixed pulley), the compensation device will lose its compensation function

Therefore, in order to prevent the compensating device from losing its compensating effect, manpower is required to regularly inspect each compensating device and adjust the lifting range of the counterweight string in time, so as to ensure that the contact line always maintains a certain tension and no disconnection accidents occur; A catenary anchoring compensation device will be installed every 1,500 meters, resulting in a very large amount of inspections. The traditional inspection method of manual regular inspections is time-consuming and laborious, and the accuracy is not high, and the efficiency is low, and only the catenary anchoring that has occurred in the accident can be found. The compensation device cannot prevent accidents; in addition, it also greatly increases the manpower input and the cost of using special vehicles such as catenary inspection vehicles, which is neither economical nor conducive to construction and maintenance

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