蔬菜精细整地机的设计与试验OA

Soil preparation was a crucial part of vegetable planting and production.The quality of soil preparation would affect the later cultivation,field management and vegetable harvest quality.Different from grain crop land preparation,vegetable seedbed land preparation should be refined and have a higher technical level.Based on this,a fine soil prepara-tion machine for vegetable seedbed was designed to solve the problems of low soil fineness and poor flatness after the work of the soil preparation machine.Firstly,the overall structure design scheme and key device structure of the machine were introduced,and the structure of the soil crushing roller was optimized to adapt to the needs of users for fine soil prepara-tion.Secondly,in the actual soil preparation process,the working environment and working conditions were more com-plex.Based on ANSYS Workbench,the static analysis of the designed rotary tiller bender was carried out,and the stress and strain of the rotary tiller bender were analyzed with the change of the load.It was determined that the stress concentra-tion area of the rotary tiller bender was near the installation hole,which might adversely affect the rotary tiller bender,which was optimized and improved.Finally,the field experiment was carried out with the soil crushing rate and the flat-ness of the ridge surface as the test indexes,and the rotation speed of the soil crushing roller,the working speed of the machine and the soil moisture content as the test factors.The results showed that the requirements for fine soil crushing could be met during the test.The rotation speed of soil crushing roller had the greatest influence on soil crushing rate and ridge flatness,followed by soil moisture content,and the operation speed had the least influence.In summary,the de-signed precision soil preparation machine met the requirements of vegetable soil preparation,could reduce labor intensity,improve soil preparation efficiency,reduce production costs,and greatly increase vegetable production.