Design and experiment of non-aligned garlic combined harvester

The existing garlic combine harvester mainly uses vibration mining, on the line clamping transmission, automatic stem cutting methods, this harvest method requires garlic planting to the row of sowing, while in the harvest process to try to travel in a straight line, otherwise it is easy to occur leakage, blockage and other problems due to the non-aligned row. In view of this situation, this paper designs a garlic harvester which can be harvested without parallel. Firstly, based on the characteristics of misaligned harvest and the agronomic requirements of garlic harvest, the overall design of the whole machine was carried out. Secondly, the stubble elimination mechanism was designed and selected through the establishment of mathematical model, and the kinematic model was established to determine the motion parameters of the garlic vine cutting mechanism and vibration mining mechanism. Finally, with forward speed, dip Angle and excavation depth as the experimental factors and damage rate and leakage rate as the main evaluation indexes, the orthogonal combination test of three factors and three levels was carried out and the SPSS software was used for variance analysis. The results showed that the performance of the combined harvester was optimal when the forward speed was 0.35 m/s, the dip angle was 20° and the digging depth was 100 mm. At this time, the damage rate was 2.91% and the leakage rate was 3.93%.