Gas pressure test system for pneumatic tension compensators

Abstract

The invention provides a gas pressure testing system for a pneumatic tension compensator, wherein the pneumatic tension compensator comprises an inflation valve, a vent hole, an air storage cylinder, a cylinder tube, a piston rod and a piston, and the charging valve is connected with the air storage cylinder, The gas storage cylinder is connected with the cylinder through the vent hole, the piston is arranged at one end of the piston rod, the upper and lower parts of the piston are respectively connected with the upper and lower parts of the inner wall of the cylinder, and then the gas pressure sensor, signal processing circuit, image sensor, image acquisition setting unit, A storage unit, a data transmission communication unit, a comparison unit and an alarm unit are used to test the gas pressure data in the cylinder when the piston is in different positions. The image acquisition setting unit is used to reduce the influence of the flickering light of the image sensor during acquisition, and the signal processing circuit In order to improve the gas pressure test accuracy.

Description

technical field [0001] The invention relates to the field of intelligent monitoring, in particular to a gas pressure testing system for a pneumatic tension compensator. Background technique [0002] In order to ensure the good current extraction of the locomotive pantograph (electrical railway train power supply system - pantograph, also known as the transmission frame), it is required that the contact wire and the load-bearing cable must maintain a certain tension, and the contact wire and the load-bearing cable must maintain a certain tension. The tension changes are compensated at any time, and the length of the contact line and the bearing cable is changed by the change of the ambient temperature. [0003] The traditional tension compensation devices mainly include: pulley compensation device, ratchet compensation device and spring compensation device. Although it can be used, it has certain shortcomings. [0004] 1. There are deficiencies in the pulley compensation de...

AI Technical Summary

Problems solved by technology

[0004] 1. There are deficiencies in the pulley compensation device: (1) Poor wind stability, which affects driving safety and operating efficiency

(2) The pendant has the risk of falling or losing blocks, which affects the compensation accuracy and maintenance workload

(3) Not suitable for application in long tunnels and large bridges, increasing costs and prolonging construction period

(5) Unsightly

Insufficient: (1) High cost

(2) Low yield (sand casting is used in China)

(3) Poor wind resistance

(4) Unsightly

There are deficiencies: (1) High requirements for installation accuracy

(2) The compensation stroke is limited

(3) The spring is prone to plastic deformation, and the compensation effect deteriorates

At the same time, the gas pressure in the cylinder of the pneumatic tension compensator is one of the important parameters affecting the work of the pneumatic tension compensator. Misjudgment

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