摘要
气力式排种器与机械式排种器相比,它具有不伤种、对种子外形尺寸要求不高、通用性好、作业速度高等优点。为探究排种器气室容积和型孔形状对排种器排种性能的影响,运用ANSYS/FLUENT有限元软件对气吸式精密排种器的气室容积和型孔形状进行仿真分析与试验研究。结果表明:气吸式排种器的气室容积对排种器的排种性能影响不大;具有漏斗形型孔结构的排种器排种性能优于圆形型孔的排种器。对两种型孔结构的排种器进行了室内台架试验,验证了仿真结果,可为排种器的研究与设计提供参考。
Using ANSYS/FLUENT finite element software,the simulation analysis and Experimental Research on the air chamber volume and shape of the air suction precision metering device were carried out.The simulation results show that the air chamber volume of air suction metering device has little effect on the seed metering performance.Seed metering device of seed metering device with funnel shaped hole structure better than circular hole.The indoor bench test was carried out on two kinds of seed metering device with hole structure,the results validate the simulation results.It provides a theoretical basis for the design and manufacture of seed metering device in the future.
引文
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