小麦留茬高度对联合收割机作业效能的影响

Influence of wheat stubble height on operational efficiency of combine harvester

全喂入式联合收割机在收割时,将茎秆根部剪断,全部打乱喂入机具内部.降低留茬高度增加了秸秆的喂入量,使机器负荷加大,增加机械的工作时间和油料消耗;同时降低留茬高度还加大籽粒损失,加速机具的磨损.半喂入联合收割机只有谷物的穗部进入滚筒进行脱粒,且茎秆不乱,不受留茬高度的影响.

When the whole-feeding combine harvester works,it will cut the stalk at the root and totally upset to feed into the machine.If stubble height lowers,the feeding amount of straw will increase to cause the increase of the machine load with the increase of working hours of machinery and fuel consumption.At the same time,grain loss will increase by reducing stubble height and wear and tear of the machine will accelerate.Semi-feeding combine harvester works with only ears of crop into the roller for threshing with tidy stalk and is not influenced by the stubble height.