In order to improve the sugarcane leaves cutting effect of electric sugarcane leaves returning machine, the sugarcane cutting process is modelled and simulated by ANSYS/LSDYNA software. It shown that in the double-support cutting mode, the cutter roller ensures the multi-layer sugarcane leaves were cut at the rotate speed of 800 rpm. During the cutting process of sugarcane leaves, the stress is mainly concentrated at the incision, and the sugarcane leaves on the side of the blade are subjected to greater stress. The smaller the distance between the rotary blade and the fixed blade of the same combination, the easier the sugarcane leaves are cut off. In the cutting test of sugarcane leaves, the cutting rate was 91.47%, which echoed the simulation results, indicating that modelling and simulation have reference value.

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In this paper, the collector is designed for electric sugarcane leaves returning field machine. According to the working principles of the collector and the moving trace rules of collecting components, we confirm the important structural parameters of the collector by using the ADAMS software for motion simulation optimization, including the rotor radius, crank length, the locus curve in the center of cam disc slide and et al. The ADAMS software is used for simulating the movement of the collector with different combinations of two factors (the forward speed of machine and rotate speed of roller plate), and we can obtain the results about the angular acceleration at the end of collecting components and the leakage area per meter. The data obtained from the simulation test is analyzed by Central Composite Design (CCD) with the aim of assessing the best working parameter combination on low leakage rate. The best parameter combination of two variables are determine, i.e., the forward speed is v=0.4 m/s, and the rotate speed is ω=49.41 rpm. The sum area of leakage area is 26.95cm2/m, and the largest angular acceleration at the end of collecting components is 200 rad/s2. The collector based on the theoretical design results is produced, and it would be tested in the forward speed of v=0.4 m/s, and rotate speed of ω=50 rpm for analyzing its performance. The test results show that the collecting effect of the collector is well, and the leakage rate is 2.93 %, which can be up to the requirement of agricultural technical index. The collector can complete the collecting work of the sugarcane leaves returning field machine.

Aiming at special structure of the conveying device for electric sugarcane leaves returning field machine, this paper presents a modeling method which can calculate power consumption according to different parameters. This method uses the thought of elementary work to build mathematical model models from two aspects of sugarcane leaf and brush cluster. The theoretical formula for calculating the power consumption of the drum type brush throwing device can be obtained by this method. Using the power consumption model and combined with the existing structural parameters and motion parameters, the working power of the conveying device for the returning field machine can be calculated. The research results in this paper will play a significant role in decreasing the power consumption and provide the feasible theoretical reference for further designing the conveying device for electric sugarcane leaves returning field machine.

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