玉米收获机割台性能试验  

Performance Experiment of Corn Harvester Header

作　　者：耿爱军[1,2] 李汝莘[1] 刘双喜[1] 张姬[1] 赵科卫 

机构地区：[1]山东农业大学机械与电子工程学院,泰安271018 [2]山东农业大学山东省园艺机械与装备重点实验室,泰安271018 [3]洛阳中收机械装备有限公司,洛阳471003

出　　处：《农业机械学报》2013年第S2期27-31,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十二五"国家科技支撑计划资助项目(2011BAD20B04-03);国家自然科学基金资助项目(51205239)

摘　　要：玉米收获机割台工作部件结构及运动参数对玉米收获机工作性能有显著影响。通过试验研究了拉茎辊空转功率与工作功率的关系以及拉茎辊转速、摘穗板间隙对断茎率、果穗损失率、损伤率的影响。结果显示:拉茎辊纯摘穗功率远小于拉茎辊空转所消耗功率;果穗损伤率、果穗损失率随拉茎辊转速升高而减小,拉茎辊、传动轴高速工作时,较大的摘穗板间隙使果穗损伤率、损失率较低;断茎率、断穗率随拉茎辊转速升高而降低;较大的摘穗板间隙使断穗率减小、断茎率较大。The structure and motion parameters of corn header have clear influence on working performance of corn harvesting machine.The relationship between picking corn-cob power and idling power of ejector roller and the influences of ejector roller speed,auger speed and picking board gap distance on broken rate of corn stalk were studied by field test.The results showed that idling power of ejector roller was larger than its picking corn-cob power.The field test also showed that with the increase of ejector roller speed,the lose rate and damage rate of corn ear decreased.When the ejector roller worked in a high speed,the lose rate and damage rate were lower at a larger picking board gap distance.With the increase of ejector roller speed,both broken rate of corn ear and corn stalk decreased.The broken rate of corn ear was lower and broken rate of corn stalk was higher at a larger picking board gap distance.

关 键 词：玉米收获机 割台 性能检测 空转试验 田间试验 

分 类 号：S225.51[农业科学—农业机械化工程]