摘要
为了研究影响玉米茎秆切割力和切割功耗的诸因素,设计了田间玉米茎秆往复切割试验台。该试验台可以更换不同形状刀片,切割速度0~2.5 m/s可调,削切角0°~35°可调。通过试验得出的切割力随时间变化曲线求出切割功耗,并分析切割刀片形状、刀片开口角度、切割速度及削切角对切割力和切割功耗的影响。试验结果表明:该试验台数据采集误差不超过1.12%,最大切割力和切割功耗随着切割速度和切割角的增大而减小,锯齿刀的切割力比光滑刀的切割力小,削切角在20°左右时较其他角度的切割力小。
In order to research the factors that affect the corn stalk cutting force and cutting power consumption,field reciprocating cutting test bench for crop stalks was developed.The test bench could switch to a different shape of the blade.The cutting speed could be adjusted in a range of 0~2.5 m/s.The cutting angle could be adjusted in a range of 0°~35°.The curves of cutting force changed with time were obtained by the experiment.The cutting power consumption was calculated according to these curves.The effect of blade shape,blade opening angle,cutting speed and cutting angle on the cutting force and power consumption were analyzed.The experimental results showed that the error of test bench data was less than 1.12%.With the increasing of cutting speed and cutting angle,the maximum cutting force and cutting power consumption were both decreased gradually.The cutting force of zigzag blade was smaller than that of smooth blade.The cutting force of 20° cutting angle was smaller than that of the other angle.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2013年第S2期32-36,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
山东省农业重大应用技术创新课题资金资助项目(鲁财农指(2010)58号)
山东省现代农业产业技术体系创新团队建设专项资金资助项目
关键词
玉米茎秆
切割力
切割功耗
试验台
控制系统
Corn stalk Cutting force Cutting power consumption Test bench Control system
