百香果藤蔓粉碎刀具的设计与试验  

Design and Experiment of Passion Fruit Vine Crushing Tool

作　　者：李俊平 张德晖[1,2] 何金成[1,2] 贺平 李盼春 候志涛 Li Junping;Zhang Dehui;He Jincheng;He Ping;Li Panchun;Hou Zhitao(Fujian Agriculture and Forestry University,Fuzhou 350002,China;Modern Agricultural Equipment Fujian University Research Center,Fuzhou 350002,China)

机构地区：[1]福建农林大学,福州350002 [2]现代农业装备福建省高校工程研究中心(福建农林大学),福州350002

出　　处：《农机化研究》2025年第4期83-91,共9页Journal of Agricultural Mechanization Research

基　　金：福建省自然科学基金项目(2018J01611);福建省教育厅项目(63TZ16001);武平县农业农村局横向项目(KH210126A);福建省高峰高原学科项目(712018014)。

摘　　要：为提高藤蔓的粉碎效果、降低粉碎能耗,设计了一款藤蔓粉碎刀具。首先,利用ANSYS Workbench/Ls-Dyna对单把等滑切动刀与藤蔓的粉碎过程进行了仿真分析,以刀轴的转速、刀片类型及其等滑切角为影响因素,以比能耗为目标进行正交试验,得到最优的参数组合:刀具类型为弧形锯齿刀片,刀片滑切角为40°,刀轴转速为800 r/min。制作试验平台对单把等滑切动刀进行试验,试验结果与仿真结果基本一致。最后,对整个粉碎装置进行试验,将藤蔓含水率、刀盘转速、动定刀间隙作为考察因素,以比能耗为主要优化目标、粉碎合格率为次要目标,进行响应曲面试验。试验得到最佳参数组合为动定刀间隙2.44 mm、刀盘转速911.28 r/min、含水率52.02%,此时比能耗为0.140 0 kW·h/kg、碎合格率为97.5317%。In order to improve the crushing effect of the vine and reduce the crushing energy consumption,this paper designed a vine crushing tool.Firstly,ANSYS Workbench/Ls-Dyna was used to simulate and analyze the crushing process of a single equal sliding cutting knife and the vine.The rotational speed of the tool shaft,the type of the blade and the equal sliding cutting angle were the influencing factors,and the orthogonal test was carried out with the specific energy consumption as the target.The optimal parameter combination was:the tool type was an arc-shaped serrated blade,the sliding cutting angle of the blade was 40°,and the rotational speed of the tool shaft was 800 r/min.Then the test platform was made to test the single equal sliding cutting knife.The test results were basically consistent with the simulation results.Finally,the whole crushing device was tested.The water content of vines,the rotation speed of cutter head and the gap between moving and fixed cutters were taken as the investigation factors.The response surface test was carried out with the specific energy consumption as the main optimization goal and the qualified rate of crushing as the secondary goal.The best parameter combination was as follows:the gap between moving and fixed cutters was 2.44 mm,the rotation speed of cutter head was 911.28 r/min,the water content was 52.02%,the specific energy consumption was 0.1400 kW·h/kg,and the qualified rate of crushing was 97.5317%.

关 键 词：百香果藤蔓 粉碎刀具 LS-DYNA 响应曲面 等滑切 

分 类 号：S224.29[农业科学—农业机械化工程]