Application Research of New Crawler Track Chassis for Rice Combine Harvester

A type of mechanical differential steering for rice combine harvester crawler chassis was described.The structure and working principle of the chassis was introduced.The rotating speed of driving wheel，the walking power of crawler track，gears，gearbox and other major components were designed.Then structural parameters，operating parameters and performance indicators were determined.By supporting rice harvester，chassis tests showed that rice harvester could achieve origin shift，and its back bending radius was only 5.825 m.And it also did not stop up by the mud，be good at paddy fields walking and suitable for the paddy fields which paddy mud depth is more than 200 mm.