Experimental Study On Sowing Performance Of Air-suction Seed Metering Device

In this paper, the adsorption mechanism of The air-suction seed metering device was analyzed, and dynamic analysis of seed was given under press instance. Based on the result of analysis, The paper considered that the mainly influencing factor is diameter of suction hole, vacuum of suction cell, rotational speed of sowing disc and so on. By altering the value of the different parameters (rotational speed of sowing disc, vacuum of suction cell), the single factor experimental aimed at the performance of seed-sowing soybeans had been made using self-developed test-bed, and it obtains the relations between the parameters and eligible rates of the grain distance, the leak-sowing rates and the re-sowing rates. The diameter of suction hole, vacuum of suction cell, rotational speed of sowing disc are regarded as three main fators, the orthogonal test had been made on the four different crops respectively, and it obtains the optimum combination of three factors by analyzing the test results.