Study On Topology Optimization Design Of Scalping Machinefruit Of Camellia Oleife

Camellia oleifera fruit is a unique oil crop in China,which is rich in variety and huge in yield.Camellia oleifera fruit is rich in nutrients,and the social demand is growing.Before extracting oil from Camellia oleifera fruit,it needs to be peeled and cleaned.Traditionally,the process of shelling is completed by manpower,which is time-consuming and laborious.At present,there are some shelling machines for Camellia oleifera fruit,but most of them separate the two processes of shelling Camellia fresh fruit shell and shelling Camellia oleifera seed shell,resulting in poor overall effect of shelling.Because the individual size of Camellia oleifera fruit varies greatly,the cleaning effect of many shellers is not good.Therefore,to strengthen the research of Camellia fruit cleaner,ensure the quality of extracting calellia oil and improve the oil yield,can improve the economic benefits of Camellia fruit.In addition,the design process of Camellia fruit cleaner can provide useful experience for the design of other similar nachines.In this paper,a kind of Camellia fruit cleaner is designed to realize the peeling and cleaning of Camellia fruit.The stress-strain analysis and modal analysis of the key components bearing the main load in the camellia fruit cleaner are carried out to verify the rationality of its structure.Because the roller has a great influence on the shelling and cleaning effect of the machine and the side plate of the vibrating screen has a great influence on the weight of the whole machine,this paper applies the two-way progressive structural topology optimization method to the design of the shell-shelling roller and the side plate of the vibrating screen.On the prelise of guaranteeing the strength and stiffness,the structural topology optimization design of these key components is carried out,and a new structure is designed and realized.The optimization of these components.This paper uses Bi-directional Evolutionary Structural Optimization Method(BESO)to optimize.Compared with other topology optimization methods,BESO method is simple in principle,easy to program and fast in calculation.This paper uses Python language to compile a structural topology optimization program based on BESO algorithm.The mathematical model of the program aims at the minimum flexibility and takes the predetermined volume fraction as the constraint condition.The camellia seed shelling roller and the side plate of the vibrating screen are optimized.According to the optimization results,a new structure is redesigned and studied.The correctness of the new structure is verified by finite element analysis.The results show that the volume and mass of the new roller are reduced by 37.2%and the moment of inertia is reduced by 31.8%compared with the original one,and the volume and mass of the side plate of the new vibrating screen are reduced by 21.2%compared with the original one.Because the new structure is smaller in volume and weight,it is lighter than the original one,and the material cost is lower,and the starting and braking time of the machine is more due to the reduction of the rotary inertia of the roller.Shorter,you can choose a smaller power motor,effectively reducing the power consumption of the whole machine.The new structure has a small increase in stress and deformation,and will not cause damage and large deformation.The overall optimization effect is good.