Gas pressure intensity testing system for pneumatic tension compensator

Abstract

The invention provides a gas pressure intensity testing system for a pneumatic tension compensator, the pneumatic tension compensator comprises an inflation valve, a vent hole, an air storage cylinder, a cylinder barrel, a piston rod and a piston, the inflation valve is connected with the air storage cylinder, the air storage cylinder is connected with the cylinder barrel through the vent hole, and the piston is arranged at one end of the piston rod. The upper portion and the lower portion of the piston are connected with the upper portion and the lower portion of the inner wall of the cylinder barrel respectively, and then a gas pressure sensor, a signal processing circuit, an image sensor, an image acquisition setting unit, a storage unit, a data transmission communication unit, a comparison unit and an alarm unit are used for testing gas pressure intensity data in the cylinder barrel when the piston is located at different positions. The image acquisition setting unit is used for reducing the influence of scintillation light during acquisition of the image sensor, and the signal processing circuit is used for improving the gas pressure intensity test precision.

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 flow of the locomotive pantograph (electric railway train power supply system - pantograph, also known as the power transmission frame), it is required that the contact wire and catenary cable must maintain a certain tension, and the contact wire and catenary cable must be The tension change of the cable is compensated at any time, and the length of the contact line and the catenary cable is changed by the change of the ambient temperature. [0003] Traditional tension compensation devices mainly include: pulley compensation device, ratchet compensation device, spring compensation device. Although it can be used, there are certain deficiencies. [0004] 1. There are deficiencies in the pulley compensation device: (1) The wind stability is poo...

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

Images