Optimization And Experiment Of Combined Subsoiler

Mechanical subsoiling can enhance moisture storage capacity of soil and improve the quality of cultivated land, comprehensive production capacity and promote the effective measures of agricultural production. The power consumption of Existing subsoiling equipments is large, easy to plug and the surface is not flat after sursoiling. Thy can not meet the following sowing seeds work on a bed of demand, thus in a certain extent restricts the subsoiling technology and equipment application. Therefore, it is an important problem to solve the problem of subsoiling technology and equipment, reduce the blockage of crop straws and the resistance,reduce energy consumption of the subsoiling cultivation, and improve the surface evenness. This paper aims at the problem of the first generation subsoiler in field test to optimizing, designing the second generation subsoiler, and test on the field. The work and conclusions of this paper are as follows:(1) A field experiment was conducted to determine the overall optimum design scheme for the experimental results.(2) Completed the subsoiling shovel and components optimization design and designed a penetrating angle regulating mechanism to ensure the operation of subsoiling shovel buried angle being in the optimum range.It can reduce the subsoiling resistance. And complishing the virtual assembly of single shovel.(3) The contrast test study of the single shovel was did to compare the effect of resistance reduction. The test result showed that the design of elastic reducing resistance mechanism with elastic drag reduction mechanism of traction resistance was reduced by an average of18.74%, coefficient of variation is reduced by an average of 8.73%, implement operation has better stability with subsoiler shovel in the state of elastic element and determined the optimal self spring parameters: wire diameter d=16mm, free height H0=220mm, pitch t=30mm,diameter D=80mm.(4) The overall design of the second generation subsoiler was completed, using 3D design software to complete the key components of the 3D modeling and virtual assembly,finished second generation subsoiler processing.(5) Studied the performance of the second generation on field. The performance of Second generation prototype was excellent without clogging, 95% of subsoiling depth passrate, 4.51% of the coefficient of variation, 95.49% of the stability coefficient, 19.43% of measuring soil Fill power, 56.62% of soil disturbance coefficient, 4.6 cm of the average value tillage after surface between maximum value and minimum value. Surface within 10 cm and around the top soil broken rate of soil were 76.4% and 75.4% on average with surface smooth,broken soil effect good. All of the above indexes meet the standards for the quality evaluation of JB/T10295-2014. The soil ditch bottom line and section shape after subsoiling is conducive to water conservation and crop growth. Subsoiling effect is good.