self-propelled carrots combine

In order to improve the mechanization on carrots, a double-rows self-propelled carrots combine harvester was designed based on carrot planting pattern and agronomic requirements. The functions of the combine included digging, clamping and conveying, separating roots from leaves, removing soil and collecting carrots. The harvester was driven by a tracked chassis, and was mainly composed of transmission system, digging device, clamping and conveying device, separating device, removing soil and collecting device. The digging shovel was designed as triangle shape of two wings open so as to reduce the operating resistance. Before separating roots from leaves, carrot plants were conveyed into a drawing device to align the roots, and then transformed to a horizontal conveying belt and to be cut by double disc cutters. The prototype harvesting tests in field showed that carrots collecting rate was 98.2%; carrots damage rate was 2.5%; the productivity of combine reached 0.11 hm2/h. This research provides a reference for further research and development of carrot harvesters.