Device for increasing high speed train adhesive force

Abstract

The invention discloses a device for increasing high speed train adhesive force. The device is composed of a spoiler, a cantilever, a spoiler bin and a transmission system, and the spoiler is flat on upper portion and convex in lower portion; the device is installed on a chassis of a train; the spoiler is rectangular or approximately rectangular, the length of the spoiler is not smaller than 30% of the width of the chassis of the train, and the width accounts for 20% to 80% of the length; the spoiler is made of stainless steel, an aluminum alloy and a glass fiber or high-intensity carbon fiber material; when the train runs at a high speed, air below a carriage flows through the upper surface and the lower surface of the spoiler at a high speed, on the basis of the aerodynamic principle, the spoiler bears the downward pressure, the dynamic wheel load of the train is increased through the pressure, and therefore the train adhesive force is increased; in addition, as the spoiler generates the downward road holding force, so that impact to the train is weakened, sliding of wheels is reduced, and meanwhile the coefficient of adhesion between wheel rails is increased; and when the train runs at a low speed, in order to reduce air resistance, a control system controls a transmission device to fold the spoiler into the spoiler bin and close a bin door.

Description

technical field [0001] The invention belongs to the technical field of high-speed train power, and in particular relates to a device for increasing the adhesive force of high-speed trains. Background technique [0002] When a locomotive or motor vehicle pulls a train, the force acting on the rail by the moving wheel can only be equal to but not greater than the adhesion force under any circumstances, otherwise the driving wheel will idling (slip) on the rail, causing the traction or braking force of the locomotive to drop sharply or even disappear , this situation is very dangerous for the train in climbing or the train in braking. Adhesion coefficient is the coefficient of static friction at the contact point between locomotive moving wheel and rail, and is the ratio of the maximum wheel traction force to the load of the moving wheel when the locomotive moving wheel is not idling. The locomotive traction determined according to the adhesion coefficient is called adhesion tr...

AI Technical Summary

Problems solved by technology

As the speed of the train becomes faster and faster, the effect of the traditional way of increasing the adhesion traction becomes less and less obvious. Similarly, the faster and faster speed also makes the braking of the train more and more difficult, thus making the normal operation of the high-speed train more difficult. More and more problems. In view of this situation, the present invention has designed a kind of spoiler that is used to improve the adhesion of train;

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