沈阳农业大学学报2023，Vol.54Issue(6)：722-731,10.DOI:10.3969/j.issn.1000-1700.2023.06.009
履带自走式园林剩余物粉碎装置设计与试验
Design and Test of Track Self-propelled Garden Waste Crushing Device
摘要
Abstract
A crawler self-walking type garden waste collection and crushing device was designed to solve the problems of the current surplus resources of garden waste and the insufficient research on processing and mechanical equipment.Based on the structural force analysis of the key components,the crushing knife roller,simulation experiment of the crushing process was conducted using EDEM software.The influence of spindle speed,the clearance between the moving and fixed cutters,the installation bias angle of moving cutter,and the number of blades on standard deviation of crushed particle size and crushing efficiency are analyzed.Finally Taking the four parameters as experimental factors,a four-factor five level mixed orthogonal experiment L25(56)was designed,to obtain the key parameters that affect the crushing efficiency and the standard deviation of the crushing particle size.The results show that the main factors affecting the standard deviation of the particle size of tree branches are the gap between the moving and fixed cutters,followed by the installation bias angle of the blade,then the spindle speed and the number of blades.The main factors affecting the crushing efficiency are the spindle speed,then the number of blades,and finally the installation bias angle of the moving blade and the clearance between the moving and fixed cutters.According to different requirements of crushing purpose,the optimized parameters are finally determined to be the spindle speed of 2 400 r·min-1,the single blade offset of 45°,the installation bias angle of 10 °,and the minimum gap between the moving and the fixed blade is 8-10 mm.According to the optimized parameters,the test prototype was processed and manufactured,and the crushing efficiency of the device for branches with different water contents and diameters is 424-1 260 kg·h-1,the standard deviation of the crushing particle size is 3.44-4.56,and the minimum fuel consumption is 7.41 L·t-1.These parameters may provide reference for the design and production of the garden residue collection and crushing devices.关键词
园林剩余物/树木枝条/收集粉碎/粉碎刀辊Key words
garden residues/branch/collection and crushing/crushing roller分类
建筑与水利引用本文复制引用
刘德军,晁浚淇,苏俊锋,邱硕..履带自走式园林剩余物粉碎装置设计与试验[J].沈阳农业大学学报,2023,54(6):722-731,10.基金项目
国家自然科学基金项目(32171900) （32171900）
辽宁省农业农村厅关于北方设施蔬菜全程机械化科研基地建设项目(辽农机[2021]202号) （辽农机[2021]202号）
