Deformation Analysis And Optimization Design Based On TRIZ For The Lifting-walking Device

In this paper,the lifting-walking device of the automatic bagged product loading machine we studied is a key equipment of auxiliary loading host for longitudinal and lateral movement to complete multi-store and multi-row stacking.In the process of actual production,problems such as improving accuracy,the structure stability of deficiencies and poor working continuity exist in the lifting-walking device.These problems directly affect the automatic bag products loading effect and the stability of the machine work.So it's significant to promote structure analysis and optimization research of the lifting-walking device.This paper studied the key structure and raised an optimization scheme for enterprise's requirement by using theoretical mechanics,materials mechanics,ANSYS finite element analysis,TRIZ theory,and so on.This main work and conclusions of this paper are as follows.1.To solve the problems in the production process of the lifting-walking device,the key structure parameters of the lifting-walking device have been analyzed under the loading condition and elevating condition respectively.Under the loading condition,the lifting device's guide pillar group lead to elastic deformation.And the main frame of the lifting walking device also has elastic deformation under the condition of package operation.Meanwhile under the elevating condition,the elastic deformation of lifting device's guide pillar group's caused caton and lock phenomenon.To analyze the above-mentioned key structure of walking device and figured out the key factors which caused the problems.2.Through the finite element analysis of the lifting-walking device under the loading condition to find the positions of larger deformation in the lifting-walking device and the force condition between the guide column and the bush.Aiming at the problem positions gained from the finite element analysis,I put forward an optimization scheme of the lifting-walking device according to the key structural parameters.After the finite element analysis of the optimized the lifting-walking device's been carried out,the deformation values of before and after optimization of the lifting-walking device obtained by finite element analysis are contrasted,and a conclusion that the stiffness of the lifting device is improved obviously according to the key structural parameters can be drawn.3.To meet the product's development requirement of enterprise and to solve problems of the lifting-walking device existing in the actual production,the TRIZ is used to put forward several optimization schemes.And the primary causes which affects the function and stability of the lifting-elevating have been found out according to TRIZ theory on systematic analysis and causal analysis.After the optimization schemes have been proposed through TRIZ theory,evaluation and comparison of the evaluated results were made then.Finally the alternative options with optimization function and higher applicability are combined.As a result,two optimization schemes which satisfied different requirements of the enterprise come out.What comes next is the summary of research work and the main innovation points of this article.Furthermore,the future direction is pointed out according to the defects of the research in this paper.