The Design And Experimental Research Of Maize Transplanting Mechanism Based On The Pot Of Plant Fibre For Maize Technology

Seedling transplantation to corn can increase the temperature, prevent the chilling damage, springdrought and autumn frost, thereby improving yield and quality of maize. The semi-automatic transplanterwhich is the majority existing dryland transplanter presently is low working efficiency; while automatictransplanter is difficult to be popularized for its high prices and complex structures. Pot of plant fibre formaize can enter into the soil with the seedlings directly, beneficial to simplify the motion trajectory of plant-ing mechanism, but there is no transplanter in accordance with it at present.On the basis of the study of failure mode of the pot of plant fibre for maize, by analyzing the workingprinciple of traditional transplanters, the paper designed a planetary gear transplanting mechanism suitablefor the pot of plant fibre for maize, which can complete the movement of taking seedling, feeding seedlingand dropping seedling at one time, with simple structure and working stability. The main content and conclu-sions of this paper are as follows：（1）By analyzing the experimental results of bending and shearing failure test to pot of plant fibre formaize, the paper found out the best failure mode of the pot of plant fibre for maize and designed the takingseedling machinery.（2）Draw on the advantages and disadvantages of existing transplanter, based on the physical charac-teristics of pot of plant fibre for maize and agronomic requirements in maize transplanting, a transplantingmechanism has been designed suitable for pot of plant fibre for maize, whose working principle, structurecomponent and kinematics analysis of mechanism was discussed and analyzed.（3）Based on kinematics model of planting mechanism, the main optimization of parameters were se-lected and the optimization mathematical models which are used to optimized the structure of plantingmechanism were deduced. The main parameters were optimized by VB and Matlab and other programmesoftware. The conclusion that the single arm is better than both arms was verified by analyzing optimizationthe result.（4）Simplified3-D Model modeling of transplanting mechanism was established, the motion parame-ters of taking seedling machinery were analyzed by motion simulation based on ADAMS. The best range ofposition of taking seedling and dropping seedling were determined.（5）The single arm transplanting mechanism was designed, the kinematical parameters which wereobtained by motion simulation were used to test guidance test. The effects of taking seedlings were verifiedon planting test bed, and the design defect was found out.