High/low-pressure air circuit system for test bed

Abstract

The invention discloses a high / low-pressure air circuit system for a test bed. The high / low-pressure air circuit system comprises an air inlet, a three-piece component and a high / low-pressure switching air circuit, wherein an input end of the three-piece component is connected to the air inlet; a stop valve is arranged between an output end of the three-piece component and an input end of the high / low-pressure switching air circuit; an input end of the stop valve is connected with the output end of the three-piece component; an output end of the stop valve is connected to the high / low-pressure switching air circuit; the high / low-pressure switching air circuit comprises a trunk air circuit, a high-pressure branch and a low-pressure branch; one end of each of the high-pressure branch and the low-pressure branch is connected to the trunk air circuit; the other ends of the high-pressure branch and the low-pressure branch are respectively connected to an air control port of a double-station five-way dual-air control slide valve. The high / low-pressure air circuit system has the advantages of rapid high / low-pressure switching, compact structure, few valves, low failure rate, convenience in use, high safety and the like, wherein the air circuit switching is not interfered.

Description

technical field [0001] The invention relates to a test bench, in particular to a high and low pressure air circuit system of the test bench. Background technique [0002] At present, the gas circuit of the high and low pressure gas circuit system of the test bench mainly includes ball valves, three-piece components, globe valves, check valves, shuttle valves, air control slide valves, and various pipe joints. After connection, the high and low pressure air system of the test bench is formed. [0003] When the test bench is working, the air source of the air compressor passes through three branch systems, and each branch passes through a pressure reducing valve, a one-way valve, and a stop valve to adjust different operating pressures, and then passes through two shuttle valves respectively. Function switching to complete the performance testing pressure output requirements required by pneumatic products. When using the pressure of one branch system, the pressure of the oth...

AI Technical Summary

Problems solved by technology

The main defect of this kind of air system is: when switching from high pressure to low pressure, the detected valve has to change direction many times to get rid of the internal high-pressure residual gas and achieve a balance with low pressure, so as to complete the switching function requirements

The problems of the test bench are complex structure, large number of valves, slow response speed of high and low pressure switching, interference in gas path switching, inconvenient use and other defects, which affect the use effect of the test bench

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