Structure Optimization Design And Stability Analysis Of The Dead Pigs Vehicle

With the continuous improvement of people's living standards,there is an increasing demand for pork,large-scale pig breeding industry has been rapid development.With the enlargement of the scale of farming,however,more intensive piggery,pigs live in crowded conditions,once a pig had a disease or death,it is easy to infect other healthy pigs.In order to avoid the spread of the disease,it is necessary to remove the dead pig from the pigsty as soon as possible.An adult pig is weighing about 300 to 500 pounds,there is no mechanical equipment dedicated to handling,but the pig aisle is narrow,the traditional way of manual handling is not only a waste of human,but also direct contact with the dead pigs,humanwill also be infected with the disease.The pig farm is in a narrow space,the pigs from piggery safety and effic ient transportation to the designated place,labor intensity is reduced,at the same time,reduce the cost of production is an urgent problem to be solved.Based on the above background,this paper was carried out the research work of the pig transporting vehicle,involving the following aspects:(1)The mechanical structure of the dead pig vehicle is designed,which comprises a bottom plate,a frame and a steering system,a lifting device and a driving device and so on,analyze the key technology,the main force components are checked with finite element strength,to ensure the reliability of vehicle use.(2)A dead pig vehicle designed in this paper is mainly aimed at farms in narrow working environment,so for the dead pig vehicle steering system research is particularly important,analyzes all kinds of traditional steering system,combined with the specific environmental,presents a geometric limit differential steering system.(3)The power system of pigs vehicles were calculated,including the calculation of the driving part and power part,the transport vehicle quality and quality handling of disease died to calculate a driving motor and a suitable lifting motor rated power,and then completed the drive motor and the lifting motor selection.(4)The multi-objective optimization design of the key parts,mainly including the optimization design of the turntable structure,is mainly the analysis of finite element analysis and optimization design based on the sensitivity,then the results of the fuzzy matter-element analysis method and weighted average method were optimized to obtain the best solution.(5)The kinematics and dynamics of the dead pig handling vehicle were analyzed and calculated.The relationship among the various moving postures and the relationship between the force and the motion state were studied.(6)The dead pig vehicle is analyzed for rollover stability and sideslip,including sudden start,straight driving,driving and motion stability of the sudden stop turning,and studies the relationship between the centroid height,track width and wheel center distance between vehicle and stability,to provide theoretical guidance for handling vehicle running.(7)The dead pig vehicle is studied,we use sandbag to simulate the dead pig,b y lifting of different quality of correspondence between the sandbags,record sandbags and lifting the quality,analysis the test data,which will be used to guide the actual production theory.