Design and Experimental Study of the General Mechanical Pneumatic Combined Seed Metering Device

To address the problems of high damage rate, low seeding accuracy, and poor generally in process, a general-purpose device was designed this study based on principle mechanical pneumatic combined seeding. The air-blowing-type cleaning seed unloading laid conditions for precise flexible In addition, single-factor experiments were performed seeds (e.g., soybeans, corn, rape-seeds) with different particle sizes shapes to verify general properties metering device. A multi-factor response surface optimization experiment by applying soybean as test object achieve optimal performance parameters At seed-clearing air velocity 16.7 m/s, feeding drum speed 13.7 r/min, hole cone angle 35.6°, corresponding index, qualified replay missed index reached 97.94%, 0.03%, 2.03%, respectively. verification results are consistent optimized ones. As indicated from results, exhibits good properties, great precision, efficiency; it is capable meeting operations crop technically supporting reliability versatility seeder.