Experimental Study on Operating Parameters of air-suction precision cottonseed-metering device based on bench test

摘要

In order to guarantee the emergence rate of cotton, generally two to four cotton seeds are required for each hole. An air-suction precision cottonseed-metering device adopts the unique triangle'shaped hole distribution, which meet the requirement of seed numbers. Aiming at studying the effect of structural parameters of seed meter on seeding performance and obtaining the optimum operating parameters of the air-suction precision cottonseed-metering device, an experiment was conducted on the type JPS-12 computer vision performance sticky belt test stand. The operating parameters are evaluated by the chamber pressure, the suction hole diameter of seeding plate, and the rotating speed of feed shaft driving motor.The pressure values provided for seed meter were set at2.5, 3.0, 3.5 and 4KPa on human-machine interface, and suction hole diameters of seeding plate were set at 2.5, 3, 3.5mm, and rotating speeds of feed shaft driving motor were set at 37.6, 47.0, 56.4