基于RecurDyn的澳洲坚果破壳装置最低转速的求解与验证  

Calculation and verification of minimum rotation speed of macadamia nut shrapper based on RecurDyn

作　　者：潘睿 薛忠[1,2] 王槊[1] 范建新[3] 何凤萍 韩树全 Pan Rui;Xue Zhong;Wang Shuo;Fan Jianxin;He Fengping;Han Shuquan(Agricultural Machinery Institute of Chinese Academy of Tropical Agricultural Sciences,Zhanjiang,524091,China;South Subtropical Crop Research Institute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang,524091,China;Subtropical Crops Institute of Guizhou,Xingyi,562400,China)

机构地区：[1]中国热带农业科学院农业机械研究所,广东湛江524091 [2]中国热带农业科学院南亚热带作物研究所,广东湛江524091 [3]贵州省农业科学院亚热带作物研究所,贵州兴义562400

出　　处：《中国农机化学报》2021年第7期84-90,共7页Journal of Chinese Agricultural Mechanization

基　　金：贵州省科技成果应用及产业化计划项目(黔科合成果[2018]4311);中央级科研院所基本业务费农机装备科技创新团队项目(1630132017004)。

摘　　要：为求解基于V型双通道澳洲坚果破壳装置的工作最低转速,运用RecurDyn软件对破壳装置破壳过程模拟,分析不同工作转速下最低破壳剪切力大小及刀片、果壳破壳过程中应力变化规律。研究结果表明,破壳装置刀盘轴转速为250 r/min时,刀片与澳洲坚果相互作用的剪切力为1107.21 N,产生的应力大于果壳强度极限。试制澳洲坚果破壳装置样机并以刀盘轴转速为100~500 r/min进行破壳试验。试验结果表明刀盘轴转速为250~500 r/min时破壳装置破壳率为92.6%~96.74%,破壳装置破壳效果与仿真结果基本一致,能够有效完成澳洲坚果破壳作业。In order to solve the minimum rotational speed of the V-type dual-channel macadamia nut shell-breaking device,RecurDyn software was used to simulate the shell-breaking process and analyze the minimum value of the shear force,the stress change rule of the blade,and the shell during the process of shell-breaking at different rotational speeds of the shell-breaking device.The results showed that when the rotational speed of the blade shaft of the shell-breaking device was 250 r/min,the shear force between the blade and macadamia nut was 1107.21 N,and the resulting stress was greater than the strength limit of the nut shell.The macadamia nut shell-breaking device prototype was tested in the cutter shaft speed range of 100-500 r/min.The test results showed that the hull breaking rate of the device was 92.6%-96.74%at the speed of 250-500 r/min.The hull breaking effect of the device was consistent with the simulation results and can effectively complete the hull breaking operation of macadamia nuts.

关 键 词：澳洲坚果 破壳机 剪切破壳装置 RECURDYN 最低工作转速 

分 类 号：S226.4[农业科学—农业机械化工程]