A leaf shredding and collecting machine based on counter-Rotating blade technology
Fanzhe Zeng
Yantai Institute of Science and Technology
DOI: https://doi.org/10.59429/pest.v7i2.10391
Keywords: Leaf shredder; Leaf-to-energy conversion; Unigraphics NX
Abstract
This study presents the design of a leaf shredding and collecting machine based on counter-rotating blade technology, aimed at addressing the inefficiencies in urban green waste management. The machine integrates a rotary rake mechanism for leaf collection and a counter-rotating blade system for shredding, ensuring efficient processing of fallen leaves. Key components, including the rotary rake, shredding unit, and power transmission system, were optimized through mechanical calculations and 3D modeling using Unigraphics NX software. The design achieves high shredding efficiency with reduced motor power consumption and includes a height-adaptive mechanism for terrain adaptability. The results demonstrate the machine’s capability to automatically collect, shred, and store green waste, offering a practical solution for urban green waste utilization and contributing to the sustainable development of green energy.
References
[1]Dong, S., Xu, J., & Wang, X. H. (2000). Utilization methods and technologies of residual materials in foreign logging areas. Forest Engineering, 16(1), 57-58.
[2]Qiao, Y. J., Xia, Y., & Fang, Y. (2004). Utilization and development prospects of tree leaves. Protective Forest Science and Technology, 60(3), 33-35.
[3]Li, J., & Wang, Z. J. (2010). Research on the utilization of forest harvesting residues in China. Anhui Agricultural Science, 38(7), 3787-3789.
[4]Chen, Y. X., Xiao, S., & Wang, Q. (2007). Research on the rational utilization of woody residues in forest areas. Forest Engineering, 23(6), 1-5.
[5]Liu, M. H. (2010). Overview of the current situation and prospects for the development and utilization of “three residuals” in forestry. Forest Survey and Planning, 35(3), 62-67.
[6]Dong, S., Xu, J., & Wang, X. H. (2000). Utilization methods and technologies of residual materials in foreign logging areas. Forest Engineering, 16(1), 57-58.
[7]Xiao, S. L. (2001). A comparison of different production processes for harvesting residues chip production. Journal of Northeast Forestry University, 29(1), 90-92.
[8]Li, S. L. (1999). On the comprehensive, rational, and economical utilization of forest resources. Forest Engineering, 15(3), 16-17.
[9]Tang, S. (2011). Design and research of a mobile branch shredder (Master’s thesis). Beijing Forestry University.
[10]Andersson, G. (1999). New technique for forest residue handling. Presented at the Forest Engineering for Tomorrow Conference (June 28-30), Edinburgh, Scotland.
[11] Cheng, D. X. (2007). Mechanical Design Handbook (5th ed.). Beijing: Higher Education Press.
[12]Pu, L. G., Chen, G. D., & Wu, L. Y. (2013). Mechanical Design (9th ed.). Higher Education Press.
[13]Liu, X. L., & Cui, J. L. (2017). Mechanical Design Course Design Based on CDIO. Tsinghua University Press.