Air tightness test system for top shutter cylinder

Abstract

The invention discloses an air tightness test system for a top shutter cylinder, and relates to the field of cylinder production and processing. The system comprises a high pressure gas source. The high-pressure air source is connected with the first pressure regulating valve and the second pressure regulating valve. The first pressure regulating valve and the second pressure regulating valve arerespectively connected with the first two-position three-way electromagnetic valve and the second two-position three-way electromagnetic valve. The first two-position three-way electromagnetic valve and the second two-position three-way electromagnetic valve are connected with a first one-way valve and a second one-way valve respectively. The first one-way valve and the second one-way valve are connected with a third three-way joint. The other two joints of the third three-way joint are respectively connected with the air inlet ends of a third two-position three-way electromagnetic valve and afourth two-position three-way electromagnetic valve, and the working ends of the third two-position three-way electromagnetic valve and the fourth two-position three-way electromagnetic valve are respectively connected with a fourth three-way joint and a fifth three-way joint. The problems that in the prior art, when air tightness detection is conducted on the top shutter air cylinder, the detection process is very tedious, and the efficiency is very low can be solved.

Description

technical field [0001] The invention relates to the field of cylinder production and processing, in particular to an airtightness test system for a top louver cylinder. Background technique [0002] Top shutter cylinder 8 is a special cylinder for trains. The production requirements of the top louver cylinder are relatively high, and it needs anti-corrosion and pressure resistance, high and low temperature resistance, uniform speed and good cushioning. The piston of the top louver cylinder 8 divides its inner cavity into an A cavity 81 towards the end of the piston rod and a B cavity 82 away from the end of the piston rod. Both the A cavity 81 and the B cavity 82 are provided with air ports connected to an external air source. At present, the air-tightness test of chamber A 81 and chamber B 82 adopts the air bubble detection method, which not only needs to check the airtightness of chamber A and chamber B at low pressure, but also checks the airtightness of chamber A and ch...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a top louver cylinder air tightness test system to solve the problem that the detection process is very cumbersome and the efficiency is very low when testing the air tightness of the top louver cylinder in the prior art

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