Investigation On Optimization And Integrated Design Of Clamp Type Billet Hanger

The clamp type billet hanger, which is made of bar mechanisms, is used for the billet gripping, transporting and unloading. The design level directly impacts on the hanger's performance quality, and then further affects the efficiency and the economic indicators. Therefore, the research of the clamp style billet spreader has practical significance.This article mainly researches on the clamp type billet hanger from the four aspects.Firstly, the mechanical analysis is carried out. The virtual prototype model of the300kN hanger is set up by Solid Edge and ADAMS for the simulation of the static characteristics, the dynamic characteristics and the kinematics, based on which the comprehensive mechanical properties, the stability and reliability of the hanger are obtained. The calculation on the parameters such as the clamping force, the intensifying coefficient, etc. and the detailed simulation analysis are taken to gain the relative errors, the max clamping force, and the force developing trend under different velocity or aceleration conditions, so that reference can be provided for the lightes and smallest hanger design.Secondly, the optimization based on the dynamic analysis and the finete element analysis (FEA) is studied repectively in the general design and the component design. The optimizing math model of the hanger is set up, taking the key parameters as the optimization objects, and the lightest hanger with satisfied strength as the optimized target. The optimization algorithm including the blad box fuction is carried out through the investigation on the relations among the design parameters, the limited conditions and the target function.Thirdly, the dey component model is set up by metamodel. These components are obtained by the parameters adjustment and the parameter-drived model generation. The clamp arm and the connecting rod are taking as the example to show the design method and flow. The design elements, the mechanical analysis and the FEA of these two components are investigated. The result shows that the metamodel-based design method is effective.Finally, according to the above theory and method, using Visual Basic6.0as the development tool, Solid Edge V15as the parametric modeling platform, the second-developed Auto CAD2004diriven by VBA as the2D graphics output platform, Word2003as the manual output platform, and SQL Server2000as the database, a integrated design system of the clamp type billet hanger for a cable company is developed.