Experimental research on effects of influence factors on the axial cutter vibration, cutting forces and the sugarcane cutting quality under complicated excitations

The sugarcane field excitation, the engine excitation and reaction forces acting on cutters constitute complicated excitations of sugarcane harvesters. Axial cutter vibration displacement measuring and sugarcane cutting experiments were done on a self-developed sugarcane harvester experiment platform (SHEP) with complicated excitations simulated through a simulated sugarcane field exciter and an actuating engine. Effects of the sugarcane field excitation, the engine excitation and cutting parameters on the axial cutter vibration, three-directional cutting forces and the sugarcane cutting quality (SCQ) were studied through single-factor and orthogonal experiments. Effects of the axial cutter vibration on three-directional cutting forces and those of these two influence factors on the SCQ were also studied. Significance levels of effects in the sugarcane cutting process form high to low are as follow, the sugarcane field excitation, the cutter rotating speed, the engine excitation, the cutter installing angle, the sugarcane harvester moving speed. The axial cutter vibration has a directly and highly significant monotonic negative correlated effect on the SCQ. For the best SCQ, the cutter rotating speed is 700 r/min, the sugarcane harvester moving speed is 0.6 m/s and the cutter installing angle is 8 degrees, providing a reference for setting cutting parameters of sugarcane harvesters with a good SCQ.