摘要
根据我国田间小区育种种植模式的特点,研制了六行同步小区条播机。该机由排种装置、投种装置、抬起装置、覆土装置、开沟装置、悬挂装置及电控装置等组成,可以进行6行同步播种,并能保证小区和小区之间不混种。在机器研制过程中,通过对电控系统和部分关键装置配合工作的分析,将带盘组合周期自净时序控制排种技术、相位导向种盒整体提升技术分别应用到排种装置及抬起装置上,实现播种作业异行异种、异区异种连续播种作业,使播种操作自动化、智能化;将弹性回转限位杆控种盒同步投种技术应用到投种装置上,降低了劳动量、提高了播种质量和效率。田间试验表明:该机排种装置的转速最大为0.34rad/s,皮带打滑率趋近于0,排种孔直径至少6.7mm,可提高播种精度、排种均匀性,降低伤种率、漏种率,满足小区条播机的播种作业要求。
According to the characteristics of field planting mode in China, this paper successfully developed the Six lines synchronous plot seeder, this machine was consisted of metering device, throwing device, lifting device, soil covering device, ditching device, suspending device, electric controlling device etc, which can realize synchronous sowing in six lines and avoid seeds mixing between different plots. In the process of machine inventing, according to the analysis of coordination work between electronic control system and some key devices, the reel combined periodic self timing control row technology and the direction-guided synchronous throwing technology was respectively used in metering device and the lifting device, which realize continuous seeding in dissimilar line and heterogeneous region that enable the seeding op- eration became automatic and intelligent. Applied the elastic rotary limiting synchronous technology to the use of throwing device that reduced the labor intensity, improved the quality and efficiency of seeding. The field performance test of the machine shows that the maximum rotate speed of the metering device was 0.34rad/s, the belt slipping rate was close to zero, the minimum diameter of the dropping hole was 6.7mm. In this case, the seeding accuracy and the seeding homog- enization was improved, the injury rate and the leakage rate was reduced, which meet the seeding requirement of plot seeder.
出处
《农机化研究》
北大核心
2017年第5期144-149,共6页
Journal of Agricultural Mechanization Research
基金
公益性行业(农业)科研专项(201203028-6)
关键词
小区播种
排种装置
投种装置
抬起装置
plot sowing
metering device
throwing device
lifting device