| The dumper is a kind of high efficiency equipment used in factories,ports and docks and other basic industries.The equipment is a very important part of the bulk cargo transportation line.Therefore,ensuring the safety and reliability of the dumper system is of great significance to ensure the orderly operation of the bulk material transportation procedures.In this paper,the O-type triple tipper is taken as the research object.Because this kind of tipper will turn over and unload three open cars at the same time in the working process,the size of the whole structure is longer,and the load and deformation displacement generated in the operation process are also larger.In this paper,through the finite element analysis method,the main steel structure of O type triple dumper structure optimization design,and through the comparison of the finite element analysis results,to verify the feasibility of the optimization scheme.On the basis of clarifying the structure and working principle of O type triple tipper.According to the size parameters of the existing O type triple tipper and the structural characteristics of C80 open car,the driving mode and transmission mode of the tipper are selected,and the size parameters of its main steel structure are improved and calculated.The main steel structure of the truck tipper was modeled by CREO software,and the finite element analysis was carried out on five typical working conditions in ANSYS environment to determine the value and location of the maximum stress and maximum position deformation under each working condition,and the cloud image and data were analyzed.According to the results of the finite element analysis,the optimization schemes of the main steel structure of the O-type triple dumper are determined as follows: the section size of the box girder is optimized according to the optimization design criteria,and the size values of each plate of the box girder are calculated after optimization;The third supporting ring structure was added to determine its supporting system,and the magnitude of the supporting reaction was determined by using the deformation coordination condition.According to the optimization scheme,CREO software was used to improve and optimize the model,and new load and constraint conditions were applied to carry out finite element analysis.By comparing the data of the finite element analysis results before and after optimization,it is judged whether the structural optimization scheme solves the stress concentration of the main stress parts of the three box girders and the large deflection in the middle part,so as to verify the feasibility of the optimization scheme.Based on the optimization of box beam section and the addition of the third support ring structure,this paper enhanced the structural safety performance of the O-type triple dumper,aiming to improve the safety and reliability of the dumper,reduce the fatigue failure probability of the steel structure,and provide a certain basis for the manufacturing and maintenance of the dumper system. |
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