Hydraulic drive chassis of multifunctional corn harvester

An existing corn harvester is in an idle state most of time, serious waste of resources is caused, a chassis of the corn harvester is prone to sinking, and the trafficability of the corn harvester is affected. Therefore, the invention discloses a multifunctional corn harvester hydraulic drive chassis which comprises a rack, an engine, a multifunctional power system and a steering drive axle system. The chassis is driven by the hydraulic motor, so that a complex transmission chain is omitted, and the structure is simplified; a driving part adopts a hydraulic motor mechanism, so that the failure of the traditional belt transmission caused by wetting is avoided; the novel gearbox is matched with the hydraulic pump and the hydraulic motor, and a plurality of power transmission interfaces are reserved, so that the corn harvesting requirement can be met, and other various operation requirements can also be met. The design is beneficial to improving the utilization rate of the chassis of the corn harvester, improvin