The Development Trend Of China's Heavy-duty Braking System Analysis And Discussion

The train is generally the heavy machine to reunite or use the drawing method, merger train traction weight is in commonly 5000 t--10000 t; Heavy load of brake problems: the manipulation of heavy vehicles of the air, train, braking and ease all this service locomotive by to realize. The longer the train, inflatable time is also more long, especially because of the connection train tube leakage increased, to train inflatable hardship, overloaded train hose connector and fold the resistance of the air to Simon Angle also have influence, the most outstanding problems is the front of the train and the rear brake cylinder boost time can vary considerably. One train longitudinal impulse caused larger, can have even possible damage. As our country's existing of the brake is not suitable for the train braking requirements of grew up, and brake wave is also low, as they give heavy traction train difficult.Heavy one of the characteristics of train braking problem is: in the control for commonly used heavy train braking, train all the air to pipe by the service on a motorcycle premise to automatically vents education, the exhaust time length and train even hang on, train number, the longer the reduced pressure time is also more long. Overloaded train another characteristic is the train tube decompression: vehicles at a slow pace. Due to the low wave velocity, braking wind of the air cylinder of inflatable ditch to train tube reflux, this not only extend the braking action against time, and also can reduce the sensitivity of action the way valve pos.According to the characteristics of the heavy train brake function and requirement, transportation, freight train from heavy braking and foundation braking equipment, etc. in China was summarized the present situation of the development of heavy braking technology and practical application, brake the performance is to ensure the safe operation of the train of the key, so far, electric braking used only for a passenger train, still use the traditional van train air brake. Air braking action by the length of the spread of the restriction, therefore, change in the air brake system was overloaded train safe operation of the prerequisites. The braking effect is overloaded train a involve a wide range of system engineering problems, in order to adapt to the development of national economy needs, railway freight transport has set up a file in the busy trunk lines running train, and heavy goods is imperative under the train speed, so freight cars of large-scale and high has become clear the direction of development, and is the traditional truck brake system can adapt to the requirements of the speed and heavy, therefore, this article is on the analysis of domestic and foreign heavy-load transportation development and trend, trying to explain the basis of heavy truck brake system the adaptability of the main device problems and prospects of train braking overloading the future direction of the technology.