玉米根茬破碎还田装置设计与试验  

Design and Experiment of a New Maize Field Rootstalk Chopper

作　　者：倪长安[1] 苗全生[2] 刘玉[1] 师清翔[1] 高春艳[1] 庞靖[1] 

机构地区：[1]河南科技大学车辆与动力工程学院 [2]河南工程学院机电工程系

出　　处：《农业机械学报》2008年第7期68-71,共4页Transactions of the Chinese Society for Agricultural Machinery

基　　金：河南省杰出人才创新基金资助项目(项目编号:0321000500);河南科技大学青年基金资助项目(项目编号:2007QN020)

摘　　要：分析了玉米根茬破碎还田装置中直刀、旋耕刀、月牙刀的破茬原理,试验验证了月牙刀滑切破茬具有土壤扰动小、功耗低、破碎能力强的特点。以刀辊转速、机器前进速度、切刀入土深度为试验因素,以功耗、破茬合格率为试验指标,分别建立了表征月牙刀破茬性能的数学模型,确定最佳参数为:切刀入土深度48 mm,机器前进速度0.77m/s,刀辊转速266r/min。在试验范围内,切刀入土深度对功耗的影响最大;刀辊转速和机器前进速度对破茬合格率影响最大。This paper analyzed the smashing theory of straight blades, crescent blades and bent blades respectively. With the velocity of roller, the machine speed and the depth in the dust as the test factors, and the percent of pass and the power consumption as the test indexes, the experiments were carried out subsequently. The advantages of crescent blades, such as small disturbance, low power consumption and high pass percent were validated by experiment. Finally, the regressive mathematic model of crescent blades smashing performance was established and the optimum parameters were obtained by regressive analysis.

关 键 词：玉米 根茬 破碎还田 优化 试验 

分 类 号：S224.29[农业科学—农业机械化工程]