2.2.1. Overall Structure

Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, and Henan Nongyouwang Agricultural Equipment Technology Co., Ltd., Zhumadian, China. have jointly developed a kind of peanut digger-inverter, which is mainly composed of a depth limiting roller, V-shaped digging shovel, vines guide rod, frame, loop conveyor chain, harrow teeth, inverting roller, inverting rod, transmission assembly, folding plate, and rear wheel, etc., with its basic structure shown in Figure 2. The peanut digger-inverter developed can complete the digging and harvesting, soil separation, vine transportation, vine inverting, and laying of peanuts in one go. During the operation of the peanut digger-inverter, driven by the tractor, the digging shovel first breaks ridges and digs, and the soil is separated through the loop conveyor chain, and finally the inverting roller and inverting rod are spread in the field. The main structural parameters and technical parameters of the machine are shown in Table 1.

**Figure 2.** Peanut digger-inverter: 1. Depth limiting roller 2. V-shaped digging shovel 3. Vines guide rod 4. Rear wheel 5. inverting roller 6. Collecting plate 7. Inverting rod 8. Harrow teeth 9. Back loop conveyor chain 10. Frame 11. Transmission assembly.


**Table 1.** Structural parameters and technical parameters of peanut digger-inverter.
