Aiming at the practical problems that in hilly area,cultivated land per capita area is less,and the land is more dispersed,rugged terrain,large agricultural machinery working efficiency is low,can’t even work,small agricultural machinery sometimes use not convenient,based on the unmanned aerial vehicle(uav)technology,this paper designed a double spiral rice planter.In this paper,the design scheme of double helix is presented,and the structure parameters and control parameters are discussed.Based on the rice seeds,we established the mechanical model of the seed movement,and then obtained the wear condition in the process of seed movement,which provided the basic conditions for the germination character of rice.By using the discrete element software EDEM to simulate the scheduling process of the broadcast machine,we analyzed the change rule of the seed quantity over time and optimized the working parameters of the arrangement device.In order to study the actual working performance of double helix rice live-broadcasting machine,we use India rice F 优 498 as the experimental materials,and the field experiment was carried out by using single factor random block design,setting up three methods of transplanting,transplanting and broadcasting.The experiment results show that the unmanned aerial vehicle(uav)of rice seeding way is up to 600 kg per mu yields,sowing efficiency is 8 minutes/mu,sowing density per square meter is about 110 seeds,sowing depth is 0.5 cm,which can satisfy the requirements of rice growth.Based on the theoretical analysis,simulation analysis and experimental study of double helix,this paper obtained the basic rules of the performance of double helix,which provide the theoretical basis for the further improvement of the parameter design and the performance of the row plant,and lays a foundation for the practical application of the double helix in the hilly area. |