| As the rapid development of China's economy, the metallurgical enterprise has made great changes with the remarkable achievements of rolling technology. On the one hand, the rolling technology parameters were optimized with the need of the users; on the other hand, the users require more types and higher quality. Therefore, the national metallurgical industry system spares no effort to completely update or improve the rolling device system in order to meet the complex market needs and so as to achieve the maximum production efficiencyAs the proposed background of this thesis, the survival of the metallurgical enterprise shall adapt to the requirements of the capacity expansion and the synergism. In connection with the key equipment of the rolling mill 2450 in one of the national steel factory, the necessary lectotype, structure and recomputation of the strength design from the point of view of the drive system transformation. The site data is collected and analyzed to verify the reliability of the transformation.The thesis focuses on the design of structure program of the main drive system for the rolling mill 2450. In the circumstances of the limited installation space, the programme design is in progress. By means of the relevant software of the applied computer technology, the numerous test data at the rolling test is collected and analyzed. With the help of the relevant mechanical knowledge, the intensity of the key components such as the drive shaft, the flat head and the fork in the main drive system is analyzed and calculated in theory, with the assistance of the powerful computing of the contemporary computers. It is concluded that the slider-type universal joint spindle successfully replaces the crisscross universal joint spindle in the main drive system of the rolling mill 2450 at present.Based on the programme, structure design is made in details. |