Design And Analysis Of Bionic Deep Shovel

The concept of bionics from the proposed to the development and application of agricultural machinery more and more quickly,at the same time by more scholars attention.The purpose of this paper is to apply the excellent soil excavation performance to the structural design of subsoiling machine in order to achieve effective drag reduction and better subsoil effect.In this paper,the excavation performance of soil cave animals was applied to the design of biomimetic deep shovel structure without the change of manufacturing materials in the study of circular deep shovel and animal claw toe,and combined with soil and equipment in Anhui area The design rationality of the bionic deep loose shovel is verified by the finite element analysis and the discrete element method,which provides the theoretical basis for the later optimization design.At the same time to create a bionic deep loose shovel entities for field trials.Carried out a series of studies:(1)Analysis and modeling of the main working parts of the loosening of the main parts of the circular-shaped deep loose shovel,the introduction of bionic biological mouse claw toe contour curve,applied to the arc-shaped deep shovel shovel cross section,and based on optimization theory design And the resistance of the shovel and the shovel was analyzed.The resistance of the shovel was 876 N,and the resistance of the shovel was 256 N.(2)The finite element static analysis was carried out on the shovel and the shovel of the bionic shovel and the deep curved shovel,respectively.The maximum deformation of the bionic shovel shovel was 1.35 × 10-3mm,The stress is 4.49 MPa.The maximum deformation of the circular curved shovel shovel is 1.63 × 10-3mm and the maximum stress is 7.96 MPa,which is slightly larger than that of the bionic type.The maximum deformation of the shovel is 0.91 × 10-3mm and the maximum stress is 2.603 MPa.(3)The finite element(ABAQUS)transient dynamic module is used to analyze the bionic deep shovel,and the load is applied as velocity.The maximum stress of the bionic shovel shovel is 36.45 MPa and the maximum stress of the shovel is 103.19 MPa The maximum deformation of the shovel is 0.2639 mm,the maximum deformation of the shovel is 0.2868 mm,and the maximum resistance to the soil is 2176.49 N.The results of the analysis provide a theoretical basis for subsequent trial manufacturing and optimization.(4)In this paper,the traction resistance of the bionic shovel and the deep subsoil shovel operation is analyzed in the same working condition(certain tillage depth and working speed)in the discrete element,and the post-The average resistance is 763.04 N and the average resistance of circular deep shovel is 907.41 N.The results show that the deduction rate of bionic slack is 15.91%.It is found that the traction resistance is proportional to the increase of working speed.(5)According to the bionic deep loose shovel two-dimensional drawings and manufacturing process requirements,the production of bionic deep loose shovel entities,and field trials.The results showed that the soil formation stability was 97.24%,the coefficient of variation was 2.76%,the soil flatness was 40.35 mm,and the soil breaking rate was 74.24%.