Train window sealing performance test system

Abstract

The invention provides a train window sealing performance test system, whichrelates to the technical field of sealing performance detection. The train window sealing performance test system comprisesa box body, a pressing and holding device, a driving device and an inflation device, wherein the top of the box body is provided with an opening, the end of the opening is located in a plane and provided with a sealing ring, and the sealing ring protrudes out of the end of the opening by a preset height; the pressing and holding device is arranged above the box body and is used for pressing the to-be-tested part on the sealing ring at the opening of the box body, so that a sealed space is formed by the to-be-tested part and the box body; the driving device is arranged on the side wall of the box body, the driving end of the driving device is connected with the pressing and holding device, and the driving device is used for driving the pressing and holding device to press the to-be-tested part on the opening; and one end of the inflation device is connected with the air source, the other end of the inflation device communicates with the interior of the box body, and the inflation deviceis provided with a pressure gauge and used for applying airwith preset pressure into the sealed space. The trainwindow sealing performance test system can realize detection of train window sealing performance.

Description

technical field [0001] The invention relates to the technical field of airtightness detection, in particular to a vehicle window airtightness test system. Background technique [0002] With the development of rail vehicle technology, the speed of trains is constantly increasing, and high-speed rail trains can reach a speed of more than 300km / h, which brings great convenience to people's travel. [0003] However, when the train enters the tunnel, a compression wave will be generated in front of the train and propagate toward the exit at the speed of sound. When the compression wave reaches the tunnel exit, it will propagate backward in the form of an expansion wave. As the tail of the train enters the tunnel, an expansion wave is generated at the tunnel entrance and propagates along the tunnel to the exit at the speed of sound, and reversely propagates in the form of a compression wave when reaching the tunnel exit. When the compression wave generated by the front of the tra...

AI Technical Summary

Problems solved by technology

The pressure fluctuations in the tunnel are transmitted into the car through the gaps in the car body, impacting the eardrums of the drivers and passengers, causing tinnitus, earache and other symptoms, affecting the ride comfort

Therefore, as the speed of the train continues to increase, the pressure fluctuation range will increase accordingly, and the adverse reactions will also intensify. In severe cases, nausea and vomiting will occur.

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