Optimization Design And Research About The Main Girder Of PTM

Under the condition of modern high speed production operating,the automatic equipment makes the hoisting machinery in the process of logistics transfer from the simple hoisting operation to the special processing.In the electrolysis plant,PTM crane used in 200 KA prebaked cell in the implementation of specific process operation,in high current,high magnetic,strong corrosion and other complex environment,is the key equipment in the production automation and high yield can be indispensable to realize the modern production of electrolytic aluminum.The structure optimization about crane of PTM can greatly reduce the weight of the whole unit,improve the reliability of the crane an d failure free operation time,ensure stable operation of safety and production.The crane of PTM on the main beam,operates with different functions of the machinery to achieve a number of operations.But the heavy force condition of the main girder structure is poor,seriously affecting the main beam fatigue strength and the production safety.In order to ensure the safety of production,the stiffness of the main beam can be increased by increasing the weight of the main beam,but the utilization ratio of the material is low and the cost of the construction is increased.To achieve this purpose,the application of modern analytical methods can optimize the main structure of the crane,improve the stiffness and strength of the main beam,reduce the use of materials,reduce the weight of the main beam,improve economic performance,reduce manufacturing costs.This paper,using the finite element method of the crane girder static analysis,and the displacement obtained under various loading conditions and differen t deformation direction,dynamic analysis,modal analysis,harmonic response analysis and transient dynamics analysis,with the vibration frequency as an important basis for the optimization design,optimize the design of the calculated weight the girder structure lighter and optimal data for deformation and stress changes produced by the comparison of different materials.Research and implementation of main beam lightweight crane,provides a orentical basis and example of technology developing for lightweight domestic PTM crane,also for the logistics machinery products,to achieve a certain extent to the development direction of energy saving and environmental protection.