The reasonable operating parameters of the leaf stripping element of the tensile sugarcane leaf stripping machine can effectively improve the quality of the leaf stripping mechanism. In order to reduce the impurity rate, a simulation model of sugarcane leaf stripping process was established. The single factor simulation test was used to analyze the influence of the rotation speed of the leaf stripping roller, the leaf stripping angle and the center distance of the leaf stripping roller (the staggered depth of the leaf stripping element) on the peak stress of the sugarcane leaf and the peeling fracture of the sugarcane leaf, and the parameter range was determined. On the basis of simulation analysis, through the prototype test of sugarcane leaf stripping, the central combination method was used to explore the influence of three operating parameters on the impurity rate and the optimal operating parameters were obtained, including leaf stripping angle 120°, leaf stripping roller center distance 77.2 mm, leaf stripping roller speed 128 r/min, minimum impurity rate 2.03%. The impurity rate obtained from the prototype test was 2.09%. The results of this study provide a reference for improving the leaf stripping effect and operation adaptability of the pulling sugarcane leaf stripper.

Research on the power consumption of the sugarcane stalk cutting system is beneficial to improve the cutting performance of the sugarcane harvester and the utilization rate of the engine power. Therefore, in order to obtain the change of the cutting force and cutting power of the sugarcane cutting device in the working process, the article adopts the unit combination method and combined with ANSYS/Ls-Dyna to numerically simulate the cutting process of the harvester cutting device. The cutting blade linear speed, the cutting blade angle and the cutting edge angle are used as experimental factors, and the cutting power consumption and cutting force are used as the experimental indicators to conduct a singlefactor experimental analysis. The parameter range of the cutting experimental factors is determined and the simulation experiment design is carried out at the same time. The minimum power consumption is the optimization goal, and the best cutting conditions are that the speed of the contact point of the cutting knife and the cane stem is 38.8 m/s, the cutter head angle is 11.66°, and the blade angle is 25°. The cutting device of sugarcane harvester consumes the least power when cutting sugarcane stems, and its minimum power is 0.80 kW.

Most sugarcane planting areas in southern China are hilly and mountainous areas with complex terrain. When sugarcane harvesters operate in the field, the cutting quality of sugarcane perennial roots is poor. Whether the cutter head can better realize profiling in the vertical direction directly affects the cutting quality of sugarcane roots and the service life of the cutter. The cutter head profiling cannot be well realized in the existing sugarcane harvesters. In view of this problem, a set of cutter head profiling systems is designed. Ultrasonic is used for ranging, the position of the ranging device is selected, the control system based on AT89C52 single-chip microcomputer is designed, the electro-hydraulic proportional directional valve is used to control the hydraulic cylinder, PID algorithm based on fuzzy control is proposed, and the motion of the hydraulic cylinder is optimized and simulated. The simulation results show that compared with the traditional PID control, the overshoot of fuzzy PID control is only 6%, and the cutter head displacement time is only 0.15 s, then the system tends to be stable.