內充種氣吸玉米免耕播種機的設計【畢業(yè)論文+cad圖紙全套】

1、買文檔就送您CAD圖紙全套，Q號交流401339828或11970985優(yōu)秀設計本科畢業(yè)設計題目：目：內充種氣吸玉米免耕播種機的設計內充種氣吸玉米免耕播種機的設計—鎮(zhèn)壓部分的設計鎮(zhèn)壓部分的設計買文檔就送您CAD圖紙全套，Q號交流401339828或11970985AbstractAccdingtothetwocropsayearinsummercnwholestalkmulchingundernotillagedirectseeding

2、ofwintermaizetheproblemofcloggingproposedtotherowseedingideasdevelopmentofcnonnotillagefertilizingseedingmachine.Accdingtotherequirementsofspecificagronomicnotillmaizeexpoundsthedesignprinciplesideasofthesuctionmaizenoti

3、llageplanterthestructureacteristicstechnicalparametersareintroducedputfwardthereasonablewkingparameterdesignaboutgroundwkingopenerrepressionof.Thefunctioncompletedcropopenditchfertilizationsowingsoilcoveringpressonceinth

4、estubbleonthewkprocess.Duringtheoperationlesssoildisturbancecanmeettherequirementsofhighspeedprecisionsowingquality.Theseedingmechanismimproveddesignsinglediscdoubledisctwoplantingmonomerthemonomertofollowtheantiblocking

5、perfmancetestshowsthatthediscseedingsinglebodyhastheadvantagesofsimplestructuregoodantiblockingperfmancesowingdepthconsistencyisgoodeffectivesolutiontotheiginalmachinetwosetsofadjacentpipe.Blockingproblem.Afterthesuccess

6、oftheprototypeoftheseedingperfmancetesttestshowthattheimprovedmachineinthewholecnstalkmulchingundernotillagecnofantiblockingeffectafertilizerseedingdepthcoefficientofvariationthanbefeimprovementbecomessmallthestructurede