双链条式中下部烟叶采摘机构设计与试验OA

Tobacco picking is the key link in tobacco production.The traditional manual picking process was cumbersome and the picking efficiency was low.And the tobacco leaves mature in the hot and intolerable summer,the environment in the tobacco field was bad,and the labor intensity of smokers was large.At the same time,the existing tobacco picking machine in China had the problem of high damage rate,which couldn't replace manual picking.Therefore,a picking mechanism for middle and lower tobacco leaves was designed by imitating the form of manual operation,which could be carried on the existing tobacco picking vehicle for operation.The various components in the picking mechanism were de-signed by chain transmission.Among them,the picking finger used flexible materials,which effectively reduced the da-mage rate of tobacco leaves during the picking process;layering device,guide vane plate and other components could as-sist the skewed tobacco plants to enter the working area,and realized the mechanized picking of tobacco plants under dif-ferent tobacco conditions.The controller could monitor the moving speed of the picking vehicle and the angle change of the picking parts,and then controlled the speed of the picking parts in real time.The conveying device transported the picked tobacco plants to the tobacco box for subsequent unified treatment.The three-dimensional physical model of mechanical picking of tobacco was established,and the simulation experiment was carried out by ADAMS software.Taking the trave-ling speed of the picking vehicle and the installation angle of the picking parts as the experimental variables,the best pa-rameters were obtained.The field test results showed that the damage rate of tobacco leaves was 5.07%,and the leakage rate was 3.68%.All indexes were significantly improved,which met the requirements of mechanized tobacco leaf picking.