The Structural Analysis And Optimization Of Packaging System In Large Gantry Shearing Machine

The recovery of Waste Metal plays an important role for the comprehensiveutilization of resources. The Gantry Shearing Machine and Packing machine are one of theimportant equipment in Waste Metal recycling, which are widely used in the recyclingindustry. Due to the limited research and development ability of production enterprise indomestic, various scrap recycling equipment generally use the ways of imitation, analogy,experience in the design phase. All of which are lack of complete research andoptimization for the rationality of equipment structure. These products have the problemslike unreasonable structural design, more raw material consumption et al. In order to solvethe above problems, the paper, on the basis of structural analysis in primary packagingsystem, researched on the reasonable arrangement rule of the structure of an actual type ofpackaging equipment (Q91Y-1250Gantry shearing machine). The paper utilizesoptimization design technology to obtain reasonable distribution of materials and size ofcomponents in the premise of ensuring enough strength and rigidity of the packagingsystem. Thereby reduce the product’s weight, material without lowering of itsperformance.The main work of this paper was to apply the modern design method including thevirtual prototype, finite element analysis and optimization for Gantry shearing machine.Firstly, built the3D model of shearing machine based on its work process and structurecharacteristics, obtained the stress variation by the virtual prototype technology. Thenaccording to the structure of the product, analyzed and optimized the packaging systemfrom door cover system, lateral subsystem and the material box system. Established thefinite element analysis model respectively and made structure analysis considering theforce of the system in normal condition and partial load conditions. Finally, according to the analysis result of normal condition and the structure characteristics of the object, used asuitable optimization method and authenticated it under two conditions.The specific work includes: establishing the door-cover subsystem and performing thestructure analysis under the normal condition, the analysis of stiffened plate reset, the sizesensitivity analysis and hypothesis analysis. Finally, obtaining the optimize structure, andverifying the result under the normal condition and the partial load condition. The Lateralsubsystem was performed the Static analysis and the structural optimization under thenormal condition, got the optimize structure and then verified. Under the Partial loadcondition, the original structure and optimize structure were performed the nonlinearanalysis, and then verified the rationality of the result. The Material box subsystem wasperformed the structure analysis under the normal condition and optimized on the basis ofthe analysis results. Meanwhile built the parametric model and took the sensitivity analysisof the substrate thickness and the side plate thickness for obtaining the optimal size.Finally, verified the result under the normal condition and partial load condition. Afterthese work, the complete optimize program of the packing system was given.Using modern design method to design the Gantry shearing machine, the packagingsystem was saving26tons of steel material (nearly28%) on the premise of guarantee themechanical properties of products. So the research ideas and methods in this paper hasactual significance to improve the design of the steel scrap recycling equipment, at thesame time it can provide more theoretical basis and research methods for the design andproduction of similar mechanical equipment.