Cutter head mechanism of sugarcane harvester

The utility model discloses a cutter head mechanism of a sugarcane harvester. Two gearboxes, a rotating shaft is vertically arranged in each gear box, the two rotating shafts are in synchronous transmission connection through a middle connecting shaft, the upper end and the lower end of each rotating shaft are connected with a hydraulic motor and a cutter head rotating shaft respectively, a cutterhead is fixedly arranged at the lower end of each cutter head rotating shaft, and a plurality of blades are arranged on the periphery of each cutter head. The two hydraulic motors directly drive thetwo cutterheads to rotate, the left cutterhead and the right cutterhead synchronously rotate reversely through the middle connecting shaft, motor power loss and gear abrasion can be reduced, the structure is simple, cost is low, and the service life is long. Besides, the two hydraulic motors and the two gear boxes form a hydraulic flow collecting and distributing valve, oil coming out of the two motors can be used in serie