| Soymilk is the most common drink in people’s life,and the method commonly used to process soymilk is to grind it with a grinding plate.According to the experimental study,different processing methods have a great impact on the taste of the processed soymilk.The experimental results show that the soymilk processed by the traditional stone grinding plate is better than the soymilk produced by the metal cutter.However,the traditional stone grinding plate has some disadvantages in the process of grinding,such as the abrasive particles are easy to fall off and it is not easy to clean after processing,which affects the taste of soybean milk during processing.Therefore,this paper proposes a ceramic grinding plate to solve the shortcomings of the traditional stone grinding plate.The soybean milk machine is designed as a whole,which has the functions of separating the dregs and adjusting the thickness.The selection of the motor,the selection of the connecting motor bracket bolt,the selection of the spring in the thickness adjusting device,the selection of the gear between the adjusting gear and the connecting piece are detailed in the calculation.It is found that the pulping performance of the grinder is related to the grinding pattern of the grinder,the structure of the grinding chamber and the rotation speed of the motor.In order to improve the pulping performance of the ceramic grinding plate soymilk machine,this paper uses the numerical simulation method to study the optimal parameters of the grinding plate structure to guide the actual production.Firstly,the three-dimensional model of soybean milk machine is established by SolidWorks software,then the standard k-εturbulence model is used to realize the closed solution of the equation,the initial conditions of the model are established according to the actual working conditions,and finally the convection field is simulated to obtain the motion law of the fluid in the grinding chamber.Based on the orthogonal experiment and single factor experiment designed for different grinding pattern structural parameters,the index which can reflect the turbulent characteristics of the flow field is selected,and the optimal structure combination scheme with 22 grinding patterns on the upper plate,80 mm diameter of the upper and lower plates and 40° inclination angle of the grinding patterns on the upper plate is obtained.Through the study of the influence of motor speed on the flow field,the velocity and turbulent kinetic energy analysis of the flow field at different speeds,it is found that when the motor speed is 3000 rpm,the soybean milk machine can process the soybean milk with high efficiency and delicate export feeling.The most commonly used algorithm for topology optimization is heuristic algorithm,which has strong applicability and can achieve a soft kill method for the grid.This method can make the simulated object close to the real force transfer state of the object as much as possible.In ABAQUS,the pre programmed program is introduced to optimize the topology of the main load-bearing part of the soybean milk machine.Based on the results of topology optimization,the structure of the motor upper seat is redesigned.Compared with the original design,it is found that the mass of the new motor upper seat is reduced by 35.9%on the basis of meeting the mechanical performance.This paper provides a new idea for the design of key components of soybean milk machine. |