Structure Design And Research Of Ophiopogon Planter

With the enhancement of people’s awareness of health care,Ophiopogonis japonicus,as one of the traditional Chinese medicinal materials,has been used in the field of raw materials and clinical formulations of Chinese patent medicine.The demand for export to foreign countries also increases year by year,and the output of Ophiopogon japonicus has been paid more and more attention by people.At present,the planting of Ophiopogon japonicus is mostly manual planting,and there is no machinery related to the planting of Ophiopogon japonicus seedlings.Therefore,a planting machine that can realize the mechanized planting of Ophiopogon japonicus seedlings is designed,which has important practical significance.The main work done is listed below:（1）Based on the consideration of small row spacing and plant spacing dense planting technology,as well as from many design factors,a crank-rocker based Ophiopogon dense planting dryland dividing mechanism is designed,The detailed design parameters of each component are determined,and the modeling and virtual assembly of each component are completed by using the three-dimensional drawing software Solid Works,interference detection and component assembly are carried out.（2）was established in ADAMS virtual prototype model of the mechanism,and the kinematics correlation analysis was carried out,the mechanism of working point trajectory and the change of the acceleration speed,got the reasonable complete reaction in the planting cycle stability mechanism are planted,in the ANSYS workbench on the mechanism analysis of statics and dynamic performance obtained the maximum stress mechanism are 147.32 Mpa,the maximum strain of 7.36×10^-4,the maximum deformation of 0.82 mm all within a reasonable range;The first six mode shapes and natural frequencies are obtained,which provides a reference for avoiding the occurrence of resonance phenomenon.（3）the dwarf lilyturf planting machine frame structure was designed,and completed the creation of three-dimensional model,in the heart of the 3 d software engine unit,planting mechanism,front and rear axle,and other components and virtual assembly,frame model of simulated frame work in the field full of bending working condition,the working conditions in finite element software frame has carried on the analysis of statics and dynamic performance by planting locomotive:static and dynamic performance parameters of maximum equivalent stress of 96.93 Mpa is far less than the yield strength of material,the maximum deformation of1.12 mm,within the scope of the permit;It is verified that the frame does not have resonance with ground excitation,engine set and splitter mechanism.（4）in the optimization module,the maximum stress,maximum deformation affecting the frame work and the quality of the frame structure size parameters,through the sensitivity of the screening,screening out three parameters and the optimization goal of the largest correlation,through the method of experimental design,the creation of response surface model is completed,through the study of the optimization of the response surface,the maximum stress of the frame was reduced by 16.9%compared with that before optimization,and the lightweight design was completed,which reduced the weight by 9.98%...