Numerical Simulation And Analysis Of Shaft System Of TLJ400 Continuous Extrusion Machine Based On

Continuous Extrusion is a new kind of way to extrude the metal which was developed in 1970s? Compare to the traditional mothed,Continuous Extrusion has kinds of advantages:high expand ratio?energy-saving?good quality finishing product and so on.Due to its advantages,continuous extrusion has been popularized widely.The DJTU is an outstanding in this field because of its world's leading ability of designing and manufacturing.Continuous Extrusion Machine is composed of several part:power system?rack system? shaft system?molding system and others.The shaft system is the core working system of a continuous extrusion machine,the reliability of which affect the efficiency and using cost of a continuous extrusion machine directly.The load which is loaded on the shaft system is the most complex of that loaded on other systems and conclude mechanical load and temperature load.Due to the working condition of the spindle system and the technology of continuous extrusion,the contact analysis and heat-construct coupling analysis of the spindle system is deeply investigated in this paper:Perpetration of the FEM analysis:The working condition of the continuous extrusion machine has been surveyed.Combined with the working condition of continuous extrusion machine.the boundary conditions of finite element calculations has been determined, a finite element simulation program and the database of materials of shaft system at various temperatures has been established.The modal of the shaft system has been established by using Solid Works and exported to ANSYS.to build the FEM modal.By using the APDI. language to control the simulation prosses,the heat conduction of the shaft system has been simulated.Though applying both the temperature field and the mechanical load to the FEM modal,the Von-Misses?displacement and contact stress of shaft system is concluded and the dangerous sections has been found out.Applied different pre-tension pressure to analyse the influence of the pre-tension pressure on performance of the shaft system. According to the conclusion,to improve the pre-tension pressure in the range between 200MPa and 260MPa can improve the performance of the shaft system.Compare the result which is applied with both the mechanical load and temperature field and the one which is applied with only mechanical load,the influence of the temperature on the performance is investigated.