电磁振动组合式毯状秧苗播种装置的设计与试验

Design and test on mechanism of electromagnetic vibrating type rice seeder for flat seedling

从理论方面探讨了精密播种对机插质量的影响,采用外槽轮的播种原理和电磁振动相结合的排种理论,设计出一种新的毯状秧苗精密播种装置.试验结果表明:采用电磁振动式播种装置进行排种的合格率和均匀度比外槽轮式播种装置的高,排种稳定性好。以每平方厘米2～4粒为合格时,其合格率可达92.8%以上,能够满足水稻毯状秧苗精量播种的农艺要求,为提高机插质量打下基础.

This paper discusses the seeding measure effect on machine mechanical transplant in theory, and according to the seeding principle of feed roller and electromagnetic vibrating theory, a new device of flat seedling metering was designed. This test result indicated, compared with roller, this mechanism had better eligible ratio, uniformity and stability of seeding. If every square centimeter need 2～4 grains, the eligible ratio was 92.8%, and the average grain was 2.49. It could satisfy agriculture requirement of rice seeding for flat seedling, providing scientific basis and technical guidance for mechanical transplant.