Power Consumption Analysis of Conveying Device for Electric Sugarcane Leaves Returning Field Machine

Abstract

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. Introduction Electric sugarcane leaves returning field machine has many advantages such as simple structure, light weight and small volume. It can effectively reduce the compaction of sugarcane field soil and avoid destroying the perennial roots. It can effectively reduce the compaction of sugarcane field soil and avoid destroying the perennial roots [1]. Cutting the sugarcane leaves into long sections of about 250mm and returning to the field in situ will accelerate decomposition, facilitate field management and achieve the effect of turning waste into treasure [2]. When the returning field machine works, the sugarcane leaves are picked up by spring-finger, then conveyed to the workspace and cut off by high-speed rotating knife roller. In order to prevent the sugarcane leaves from being brought into the guard plate by spring-finger during the conveying process, a drum type brush throwing device is added between the pickup device and the cutting device, so that the sugarcane leaves can be smoothly and rapidly conveyed to the cutting workspace and the working efficiency can be improved. As the main part of the electric sugarcane leaves returning field machine, drum type brush throwing device directly affects the working performance of the machine. Power consumption and work efficiency are important performance indicators of throwing device. In order to improve throwing efficiency and reduce throwing power consumption, domestic and foreign scholars have carried out targeted research[3,4,5,6,7,8]. Zhang Haikun analyzed the movement of material and conducted the experiment research about the influence of the material throwing barrel structure on the throwing process[9]. Zhu Songming established a theoretical equation for the power consumption and introduced the definition of theoretical efficiency of blowers[10,11]. Zhai Zhiping used the theoretical analyzing method to establish the mathematical models of the power consumption, firstly based on considering the airflow, which is suitable for forward-slant, backward-slant and radial paddle[12,13,14]. Because these power consumption analysis only aims at the case that the impeller vane of the throwing device are metal materials, and the electric sugarcane leaves returning field machine uses nylon brush cluster as the throwing tool, the above-mentioned throwing power mathematical model is not applicable. At present, the research on power consumption of drum type brush is seldom involved. According to the work of predecessors, the power consumption and efficiency of drum type brush throwing device are analyzed and studied in this paper. Aiming at the case that the throwing tool is