摘要
为了实现施肥播种的自动化,对施肥播种机进行了整体设计,并对刀辊进行优化设计。施肥播种机主要包括旋耕机构、开沟机构、种子化肥储存散播系统和覆土机构等。单驱动轴通过链传动驱动播种轴和施肥轴,建立了驱动轴转速和播种量和施肥量之间的模型,以及开沟机构牵引力模型,探讨开沟深度、工作速度和驱动力之间的关系。对刀辊进行优化设计,使旋耕轴质量减少29%。模态分析表明:1阶共振转速为3501r/min,远高于旋耕轴270r/min转速,无共振危险。对施肥播种机播种准确程度、施肥准确程度以及种子覆土合格率进行检测,结果表明:全部指标优于国标要求。
In order to achieve the automation for fertilizing and sowing,the layout design for seed and fertilizer drill was finished,and knife roller was optimized.The seed and fertilizer drill was formed by rotary tillage,ditching mechanism,Storage and dissemination system for seed and fertilizer,and soil cover machine.The sowing shaft and fertilizer shaft were driven by the same drive shaft.The relationship between drive shaft speed and sowing rate was achieved,and while the relationship between drive shaft speed and fertilizer rate was finished.The model for tractive force of ditching mechanism was achieved,and then the relationship between ditching depth,working speed and tractive force was calculated.The knife roller was optimized,the rotary tillage shaft reduced weight for 29%.The result of modal analysis showed that first order resonance speed was 3501r/min,and rotary tillage shaft speed was 270r/min,so the resonance was non-existent.The test for the seed and fertilizer drill was taken,such as Sowing accuracy,Accuracy of fertilization and qualified rate of covering soil,the result was better than GB request.
作者
赵畅
Zhao Chang(Jilin Communications Polytechnic, Changchun 130012, China)
出处
《农机化研究》
北大核心
2022年第8期87-91,共5页
Journal of Agricultural Mechanization Research
基金
吉林省教育厅“十三五”社会科学项目(JJKH20190720SK)。
关键词
小麦
施肥播种机
播种量控制
优化设计
wheat
fertilizing the seeder
control of seeding rate
optimal design
