六行同步小区条播机的研制

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。

Design of Six Lines Synchronous Plot Seeder

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 de-vice , 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 co-ordination 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 .34 rad/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 .