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1. Antiskid exhaust valve

1.1 function of antiskid exhaust valve

When the train is braked, the brake force produced by the brake shoe or brake disc makes the train decelerate through the force between wheel and rail. However, if the braking force is too large or the wheel rail adhesion coefficient is reduced, the wheel will lock and slide. Sliding will not only reduce the braking resistance and increase the braking distance of the train, but also scratch the wheels, affecting the safe and stable operation of the train. After the train speed is increased, especially after the passenger train speed is increased, in order to shorten the braking distance as much as possible, it is necessary to make full use of the adhesion, and the probability of wheel longitudinal sliding is correspondingly increased. In order to prevent the wheels from sliding, it is necessary to install the anti-skid system on the speed-up bus.

The antiskid system consists of speed sensor, microcomputer control unit, antiskid valve and pressure switch. Prevention

The function of the slide valve is that when the microcomputer control unit detects that a certain axle is about to lock and slide on the rail, it will give the corresponding electrical signal to the anti-skid valve on the axle, the anti-skid valve exhausts the air, the brake cylinder pressure decreases, so that the rotation speed of the axle can be picked up to avoid sliding; when the rotation speed difference is less than the predetermined value, the air outlet of the anti-skid valve on the axle is closed, and the brake cylinder maintains the pressure; when the rotation speed is fully recovered Return to normal. Air inlet of anti-skid valve, recovery of braking force.

1.2 anti skid exhaust valve of our company

Since 2010, our company has cooperated with Nanjing Puzhen Vehicle Co., Ltd. in the development of anti-skid valve, and has completed various tests such as high and low temperature, salt spray, vibration, performance, etc. all indexes of the products have met the requirements, and will be supplied in batches soon.

1.3 相關(guān)產(chǎn)品參數(shù)

1.4 檢測報告

1.5 南車防滑閥性能檢測技術(shù)標準