为了提高制种玉米生产管理的机械化水平,设计了一种父本整秆切除铺放机,主要由切割机构、茎秆输送机构和液压传动系统等组成.切割机构采用斜向无支撑旋转切割方式,根据玉米植株被完全切断的条件,结合设计的一字型刀片结构参数,确定了刀片的旋转角速度,通过刀片的运动分析,验证了刀片结构的合理性;茎秆输送机构采用装有长、短夹齿的回转输送链和压杆相互配合的方式,通过对输送过程中茎秆受力和输送链运动分析,得出了茎秆被牢固夹持并有序输送时的相关技术参数;留茬高度调节由升降油缸驱动平行四边行机构实现,刀片和输送链由负载敏感液压系统传动实现.田间试验表明,设计的制种玉米父本整秆切除铺放机性能稳定、可靠,切断率为100％,铺放整齐率达95％,满足了机械化父本切除作业的要求.%The whole stalk cutting-placementing machine of staminate plant was designed to improve the mechanical level during the seed corn cultivation.The machine consisted of cutting mechanism,stalk conveying mechanism and hydraulic driving system.The cutting mechanism was featured with a supportless revolving cutting design with an inclination cutting angle.To fully cut the plant,the revolving angel velocity of blade was figured out by considering the parameter of fiat blade.A blade kinematic study was conducted to work out the conditions that preventing omitting,and the reasonability of blade structure was proved.Stalk conveying mechanism was constituted of round conveying chain with long and short clamping device installed and compression bar.The test on stalk forcing and conveying kinematic analysis showed that the technical parameters were obtained while stalk could be steadily held and conveyed effectively.Stubble height can be adjusted by a parallelogram design drived by hydraulic cylinder.Blade and conveying chain were motivated by the load-sensing hydraulic system.Field experiment proved that the whole stalk cutting-placementing machine of staminate plant was reliable and highly efficient with a 100％ cutting ratio and the orderliness ratio was higher than 95％,which sufficiently met the staminate plant cutting requirement.
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