High-speed particle impact test apparatus

Abstract

The invention relates to a high-speed particle impact testing device comprising a pressure exciting unit, a testing range guiding tube which is in gas communication with the output end of the pressure exciting unit and particles which have diameters matching with the inner diameter of the testing range guiding tube and are driven by the pressure exciting unit to go ahead at high speed in the testing range guiding tube. One end of the testing range guiding tube, which is close to the pressure exciting unit, is radially provided with a particle filling opening; and the pressure exciting unit comprises an air compressor, an air input opening, and a supercharging pump connected with the air output opening of the air compressor. The invention utilizes compressed air to drive the air-air supercharging pump so that the air pressure can be improved to the measurement standard; in addition, the invention is easy to implement and has low manufacturing cost due to the adoption of the prior air compressor and the prior supercharging pump; moreover, the invention can regulate the high pressure for the particles to move at high speed in the testing range guiding tube so that the high-speed particle impact measurement result can be more reliable and the quality of the object to be measured is guaranteed.

Description

technical field [0001] The invention relates to a device for testing the anti-impact performance of high-speed particles of personal labor protection equipment and various types of glass, and is especially suitable for testing the anti-impact performance of products such as glasses, eye masks, face shields, and liquid crystal screens. Background technique [0002] As we all know, for products such as glasses, eye masks, face shields, and LCD screens, anti-shock tests must be carried out during the manufacturing process to ensure the safety of the products. Most of the existing test methods use falling ball impact or pendulum ball impact, and the impact speed cannot meet the standard requirements. In the prior art, there is also a test device that uses compressed air to excite steel balls, but due to its small test pressure, Also does not meet the standard requirements. [0003] According to the national standard GB14866-2006 testing standard for personal eye protection, the...

AI Technical Summary

Problems solved by technology

Most of the existing test methods use falling ball impact or pendulum ball impact, and the impact speed cannot meet the standard requirements. In the prior art, there is also a test device that uses compressed air to excite steel balls, but due to its small test pressure, Also does not meet the standard requirements

[0003] According to the national standard GB14866-2006 testing standard for personal eye protection, the diameter of high-speed particles is required to be 6mm, and the maximum speed is 196mm / s, but the existing equipment cannot meet this standard. Therefore, this makes the production of glasses and goggles The quality of products such as face masks cannot be reliably guaranteed

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