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为探究型孔轮式排种器对麻类作物种子的适应性关系,并为设计多功能精量播种机提供理论依据,在排种性能试验台上分别进行了亚麻、大麻、红麻和黄麻种子的排种性能试验。研究了排种器转速与播量、排种均匀性之间的关系,建立了排种器单位时间的排量与转速的数学模型。试验表明:该排种器适合麻类作物的排种作业,在排种亚麻时,转速应控制在20~60 r/min;排种大麻时,转速控制在10~30 r/min;排种红麻时,转速控制在10~30 r/min;排种黄麻时,转速控制在5~25 r/min。研究结论对采用型孔轮式排种器的多功能精量播种机的设计具有指导意义,并为研究通过转速来控制型孔轮式排种器变量排种提供了理论依据。
In order to explore the adaptability of the hole wheel seed metering device to the hemp crop seeds and to provide a theoretical basis for the design of multifunctional precision seeder, flax, hemp, kenaf and jute Seed seeding performance test. The relationship between the speed of the seeding device and the sowing rate and uniformity of seeding was studied. The mathematical model of the displacement and speed of the seeding device per unit time was established. The experiment shows that the seed metering device is suitable for the seeding operation of hemp crops, and the speed of rotation should be controlled at 20-60 r / min while the flaxseed is inoculated; the speed control is 10-30 r / min when seeding the cannabis; Kenaf speed control at 10 ~ 30 r / min; when sown jute, the speed control in 5 ~ 25 r / min. The conclusion of the study is of guiding significance to the design of multi-functional precision seeder with hole wheel-type seed metering device, and provides a theoretical basis for researching variable-speed seed metering of wheel-type seed metering device by rotating speed.