摘要
分析了切碎输送装置结构与工作原理,建立了茎秆切口夹角、切段长度、输送效率的数学模型,并计算其理论值。鉴于作业速度变化会引起玉米秸秆喂入量的波动,对茎秆的切口夹角和切段长度,以及碎茎秆的输送效率均有明显影响,因此以作业速度为试验因素,以茎秆切口夹角、切段长度以及输送效率为试验指标,进行了田间试验,测算得出了茎秆切口夹角、切段长度、输送效率的实际值。通过数据回归,分别得出作业速度与茎秆切口夹角、切段长度、输送器输送效率实际值修正系数的理论数学模型,构建了基于田间作业速度的茎秆切碎与输送装置工程设计模型,可为同类装置设计提供参考。
The structure and working principle of the chopping conveyor were analyzed,and the theoretical relationship between the angle of the incision,the length of the stem segment and the conveying efficiency of the crushed stem conveyor was established,and the theoretical values of the three were calculated.The change of working speed would cause the fluctuation of the corn stalk feeding amount,which had significant effects on the length of the cut section,the angle of the cut,and the transport efficiency of the broken stem.Taking the working speed as the test factor,the angle of the stem cut,the length of the cut section and the transport efficiency were taken as the test indicators.The field test was carried out,and the angle of the stem cut was calculated.The actual value of the length of the cut section and the conveying efficiency were calculated by data regression,and the mathematical model of the working speed and the angle of the cut,the length of the stem cut,and the actual value of the transport efficiency of the crushed stem conveyor were respectively obtained.Through the speed stalk chopping and conveying device,the model was actively designed to reduce the design deviation of the theoretical calculation model,and provided a reference for the design of the similar device based on the field conditions.
作者
郝付平
陈志
张宗玲
韩英
余鹏飞
韩增德
HAO Fuping;CHEN Zhi;ZHANG Zongling;HAN Ying;YU Pengfei;HAN Zengde(Chinese Academy of Agricultural Mechanization Sciences,Beijing 100083,China)
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2019年第B07期67-72,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家重点研发计划项目(2016YFD0701904)
关键词
穗茎兼收
切碎装置
输送装置
设计
试验
reaping stalk and spike
roller chopper
conveying device
design
experiment
