The Research And Optimization Design Of New Type Of The Lifting Equipment

With the vigorous development of the logistics industry, the lifting equipmentindustry is stepping into a period of rapid development, more and more widely used.At the same time, the user of the lifting equipment put forward higher requirements ofstatic performance and stability. The simple calculation methods or experience wereused by the lifting equipment manufacturers no longer applicable, it is necessary toimprove the quality of the lifting equipment by detailed algorithm or advancedcomputer aided design. This article is mainly focusing on designing a kind of simplelifting equipment, using SolidWorks software to create the3D solid modeling of thelifting equipment and assembly in virtual, using ADAMS software to verify thestability whether in good condition or not, the mechanical analysis of inner mast,using ANSYS Workbench software to analysis inner mast of the lifting equipment andon the basis to optimization design, the main research contents include:(1) Designing a kind of simple lifting equipment, Using SolidWorks software tocreate the3D solid modeling of work device, include outer mast, fork frame, fork andlifting chain; power device and driving device. Creating the3D parametric modelingof inner mast and assemblying is made, checking interference of the assembly. Theestablishment of the model lay the foundation for the finite element analysis,optimization design and stability analysis.(2) The3D model of the lifting equipment into ADAMS software andestablishing the virtual prototype model of it, according to the actual workingcondition for dynamic simulation, obtaining the vibration curve of the liftingequipment four legs.(3) Achieving the mechanical analysis of inner mast, include external force;internal force include torque, bending moment and bimoment; strength calculationinclude the restraint torsional normal stress, the bending normal stress, the contactextrusion stress and the bending normal stress of the column flange; at last, thestiffness calculation is given.(4) The model of inner mast is imported into ANSYS Workbench software tostatic analysis and to get the equivalent deformation and stress contours clouds, whichthe inner mast under the most dangerous condition. Through the analysis, the insidemast is designed to be reasonable.(5) Using the optimization module of ANSYS Workbench software, regarding section size of column as design variables, it’s intensity and stiffness are constraints,the minimum mass is goal, optimization design is carried out on the inner mast. Theresults show that not only the inner mast after optimization in quality to reduce by12%, but also the maximum equivalent stress and the maximum equivalentdeformation are decreased, achieving good results.