Design & Research On DQ35 Type 350t Schnabel Wagon

The Schnabel wagon is mainly used for transporting the oversize and overweight cargos which is short, thick and heavy, such as transformer, generator stator, rolling machine, and nuclear power station pressure shell, etc. With the development of national electric industry, more and more 600MW generator stators are produced and need more transportation capacity, but the current railway wagons condition can not satisfy the need. In order to increase the railway transporting capacity in transporting the large piece cargo, the Schnabel wagon specially for transporting the 600MW generator stator is in great need.This wagon features less number of axles, light tare weight, short length of wagon and wide scope of use. This thesis is mainly on some new studies of Schnabel wagon on the basis of DQ35 350t Schnabel wagon which is the most advanced in China now.At first, the thesis introduces the current conditions and development of long and heavy wagons in China and abroad and the relevant key techniques in development. By the investigation and analysis on the transportation of 600MW generator stator, and on the basis of previous design, manufacture, and use of D38 Schnabel wagon, the overall design scheme of new type 350t Schnabel wagon is finalized by optimizing parameters.It is proved that the design can be realized by doing the following calculations to the wagon: bridge condition, stress structure of the whole structure, FEA on strength and rigidity of underframes, dynamic performance of the whole wagon, and stability calculation, etc.At last, the thesis gives a detailed introduction of wagon body static strength and dynamic test methods, test procedure and results and makes evaluation to the test results. The design of the wagon is proved to be scientific and reasonable by both calculation and test, and the reliability of the wagon performance and usage is improved. The study work mentioned in the thesis is good for the development of Schnabel wagon.