Optimized Design Of Rack Structure For Cigar Tobacco Leaf Sliced Equipment Based On ANSYS

With the development of the tobacco industry in the direction of mechanization and intelligence,tobacco leaf machinery,as one of the important production factors in tobacco manufacturing,has received more and more attention from the state.Slicing equipment is an important variety of tobacco machinery,which can effectively improve the efficiency of tobacco processing.The production cycle time of the slicer is small,the working environment is relatively harsh and the vibration frequency is relatively large,which puts strict requirements on the main support frame of the slicer.Optimal design and fatigue analysis of the overall frame can reduce the overall weight of the slicing equipment and ensure the stability of the equipment,which is of great significance for improving the working performance of the equipment and ensuring the working quality of the equipment.This paper takes the self-developed eggplant and eggplant equipment as the research object,designs and optimizes its frame structure to improve the stability of the equipment,and uses the finite element method to perform static analysis,modal analysis and optimization analysis on the frame structure.Mainly research the following aspects:(1)Based on the existing two-dimensional drawings of the Cigar Tobacco Leaf Sliced Equipment,the overall model of the eggplant and eggplant slicing equipment and the geometric models of each system are established through SolidWorks,and the composition and function of each system are described.(2)According to the mechanical analysis of the frame structure,determine the stress situation of each part.In order to confirm whether the frame structure meets the strength requirements,use ANSYS Workbench to conduct a static analysis of the load of the frame structure.The results show that the maximum stress on the frame is37.654 MPa,which is far less than the allowable stress of the material,and the structural strength of the frame meets the design requirements.(3)In order to avoid the resonance between the frame and the air pump,the modal simulation analysis of the frame structure is carried out,and the first ten natural frequencies of the frame under the constraints are 23.519 Hz ~ 55.503 Hz,and the maximum excitation frequency of the air pump is 13.62 Hz The results show that the natural frequencies of each order of the frame-constrained mode are greater than the excitation frequency of the air pump,which avoids the occurrence of resonance phenomena,and the vibration modes of each order meet the rigidity requirements of the frame structure.(4)In order to obtain a better lightweight design,topological optimization design of the rack,the strength and modal verification of the optimized rack structure.The optimization results show that the quality of the frame structure is reduced by5.16% on the original basis;the maximum stress of the optimized frame is less than the allowable stress of the material,which meets the strength requirements;the natural frequency of the optimized frame is compared with that before the optimization Slightly increased,the natural frequency of the frame is far away from the operating frequency of the air pump,there will be no resonance,and meet the rigidity requirements.Finally,after one day of trial operation of the optimized equipment,it was shown that the slicing equipment has the advantages of low vibration,easy operation,safety and efficiency,and uniform cutting.