Abstract:

In order to improve the passing capacity of the ratooning rice harvester during operation, a floating chassis of the ratooning rice harvester was designed according to the agronomic requirements of the first harvest season of the ratooning rice. It adopts a double balanced fully floating support wheel system, which adjusts the wheel system according to the uneven terrain without severe vibration of the vehicle body. It is very smooth when entering and exiting the field, effectively improving the smoothness of the operation of the ratooning rice harvester and enhancing its off-road climbing ability. The track width is 280 mm and adopts a fully hydraulic chassis with high flexibility. The virtual prototype simulation analysis with Recurdyn shows that the floating chassis of the ratooning rice harvester has flexible turning, the maximum settlement of the track is 120 mm, and the climbing ability meets expectations. Field experiments have shown that the floating chassis of the ratooning rice harvester has flexible turning in the field, reducing the rolling rate by 25% compared with ordinary tracked harvesters. This study can provide reference for theoretical research on ratooning rice harvesters in the later stage.

Key words: ratooning rice harvester, floating chassis, virtual prototype, rolling rate, field experiment