The Design And Experiment Of Harvester And Thresher Used In Rice Yield Prediction

In my country,agricultural insurance is very important to protect the production and life of farmers.The agricultural insurance department needs to go to the participating farmers to determine the output of the protected crops.This is especially true for rice,a major crop in my country.However,due to the complicated terrain in many paddy fields and wheat fields in many mountainous areas,many harvesting equipment cannot be operated and is not easy to carry,which has caused a lot of inconvenience to the agricultural insurance department.This article focuses on this situation to design a plan from rice harvesting to threshing for the agricultural insurance department,and make prototypes for testing.The main research contents are as follows:(1)After consulting the literature on crop harvesting and cutting,this study also comprehensively considered that the actual situation of harvesting in mountain areas is often affected by the terrain.This article first focuses on a portable rice that is currently required for production in mountain areas.The necessity of the design of the wheat harvester was discussed,the source of the topic,the significance of the purpose,and the current status of research on harvesting at home and abroad were introduced.Based on this,the research content of the topic was clarified.(2)Based on the relevant data consulted,three different walking schemes were developed,and the approximate structure was modeled with UG three-dimensional software,and their advantages and disadvantages were analyzed and compared.The first scheme is a hand-pushing harvesting and threshing machine.Mainly use manpower to push forward,because the weight is too large,the transfer inconvenience is eliminated;plan two is a handheld harvesting thresher,plan three is an air-suction harvesting thresher,because the structure of plan one and plan three is too cumbersome and the transfer is inconvenient.Exclude,and finally on the basis of the second plan,separate the harvesting and threshing functions to reduce various inconveniences during harvesting.(3)After determining the plan,design the working principle and structural dimensions of its key components.For the harvester,the cutting part uses the cutting method of the movable knife and the fixed knife.The anti-leakage claw is installed under the cutter to prevent the direction of the cut rice ears.Outside leakage,use the support plate and the collection bag rack to increase the feeding inlet.The thresher part roughly follows the working principle of the traditional threshing machine.Use UG 3D software to draw theparts of the harvester and thresher,and finally assemble,so as to get two The final virtual prototype of the machine.(4)Simulate the key components of the two machines.First,use Ansys to perform modal analysis on the key components of the harvester,such as the cutter,leak-proof claw,and support plate,and perform static analysis on the threshing machine frame and other components.The stress and strain results are obtained,and the cutting process of the moving knife and the static knife in the cutting blade during the cutting of the stem is dynamically analyzed by the Hypermesh software,and finally the changes of the stress and strain of the moving knife during the cutting process are obtained.Analyze all the simulation results obtained above and conclude that the key components basically meet the strength requirements.(5)Finally,the prototype of the harvester and thresher is completed according to the parameters,and field trials are carried out on them.Among them,the harvester test is divided into two groups,A and B.The harvesting rate is used to determine the harvesting effect to meet the basic requirements of measuring harvest.The threshing machine test is also divided into A and B groups.The machine can successfully complete the threshing operation.