不同脱粒方式对玉米籽粒损伤的影响规律  

Effects of different threshing methods on corn kernel damage

作　　者：徐海港 张春祥 孙延成 耿端阳[2] 张小军 XU Haigang;ZHANG Chunxiang;SUN Yancheng;GENG Duanyang;ZHANG Xiaojun(Shandong Shifeng Group Company Limited,Liaocheng 252800,China;School of Agricultural Engineering and Food Science,Shangdong University of Technology,Zibo 255049,China;Sichuan Agricultural Mechanization Technology Extension Station,Chengdu 610041,China)

机构地区：[1]山东时风(集团)有限责任公司,山东聊城252800 [2]山东理工大学农业工程与食品科学学院,山东淄博255049 [3]四川省农机化技术推广总站,四川成都610041

出　　处：《山东理工大学学报（自然科学版）》2022年第2期18-23,共6页Journal of Shandong University of Technology:Natural Science Edition

基　　金：国家重点研发计划项目(2018YFD0700103-02);山东省农机装备研发创新计划项目(2018YF037)。

摘　　要：针对籽粒损伤成为制约玉米籽粒直收技术推广应用的核心问题,研制了钉齿式和板齿式两种脱粒装置并进行了对比试验。结果表明:在相同滚筒转速、凹板间隙及籽粒含水率条件下,虽然板齿式和钉齿式脱粒装置都可以实现玉米的籽粒直收,但是板齿式脱粒装置表现更优,其籽粒损伤率仅为2.2%左右,较钉齿式降低了2%。该研究为选择合适的玉米脱粒技术提供了数据支持。In view of the fact that grain damage has become the core problem that restricts the popularization and application of corn grain direct harvest technology,experiments were carried out on two kinds of threshing devices including pin tooth threshing device and plate tooth threshing device.Results showed that under the same conditions of drum speed,concave clearance and grain moisture content,both plate tooth and pin tooth threshing devices could achieve corn grain direct harvest.The performance of plate tooth type was better,and the grain damage rate was only 2.2%.Compared with the pin tooth type,it was reduced by 2%.This research provided data support for selecting appropriate corn threshing technology.

关 键 词：玉米籽粒 直收 脱粒装置 籽粒损伤 

分 类 号：S225.51[农业科学—农业机械化工程]