摘要
根据振动送料原理,提出了一种实现玉米种子定向排列输送的方法,对种子的定向过程进行了动力学分析,探讨了定向过程中种子各种姿态的变化过程与力学参数之间的关系。以郑单958玉米种子为试验对象,建立了振动定向试验装置;以台阶高度A、滑槽倾角B、振幅C和频率D作为影响因素进行了正交试验。试验结果表明:台阶高度A、滑槽倾角B及其交互作用对种子定向效果具有极显著影响;通过多重比较分析得出试验条件的最佳组合为:台阶高度为4 mm、滑槽倾角为4°、振幅为0.18 mm、频率为51.5 Hz。在最佳试验条件下分别对顺行和逆行种子进行10次重复试验,试验结果表明:顺行定向成功率为93.5%,逆行定向成功率为89.4%。采用高速摄影技术分别对顺行和逆行的种子进行了观察验证分析,分析表明:种子的实际运动状态与理论分析基本吻合。
According to the principle of vibrating feeder, this paper proposed a method to achieve directional transportation for corn seed. It explored the relationship between the various postures of the change process and mechanical parameters during orientation. A directional vibration test device was established by kinetic analysis while the Zheng Dan 958 corn seed was taken as the research object. The orthogonal experiment was carried out with the factors affecting the rate of directional orientation such as step height A, inclination angle of track surface B, vibration amplitude C and vibration frequency D. The test results showed that the step height A and the inclination angle of track surface B and its interaction had extremely significant effect on seed orientation. The best test combination was determined by multiple comparison analysis. The result of the forward motion directional rate from repeating ten times was 93.5% and the reverse motion directional rate was 89.4% when the altitude difference was 4 mm, inclination angle was 4°, vibration frequency was 51.5 Hz, and vibration amplitude was 0. 18 mm. The high speed photography was applied on the observation and verification for the direct and reverse motion test result, the analysis result showed that the actual state of motion was in keeping with the theoretical analysis basically.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2015年第1期79-88,共10页
Transactions of the Chinese Society for Agricultural Machinery
基金
高等学校博士学科点专项科研基金资助项目(20120008110045)
中央高校基本科研业务费专项资金资助项目(2012YJ105)
关键词
玉米种子
定向播种
电磁振动
Corn seed Directional seeding Electromagnetic vibration
