Design and Experiment of Quantitative Seed Feeding Wheel of Air-Assisted High-Speed Precision Seed Metering Device

Aiming to solve the problems of poor uniformity seed flow discharge and serious damage traditional straight grooved wheels improve performance air-assisted maize high-speed precision metering devices, a staggering symmetrical spiral feeding wheel with seeds was designed. To explore influence groove inclination angle length staggered feed on discharge, l ρ were used as experimental factors, variation coefficient increase in seed, full-factor simulation test carried out for indicators, it found that both have an is more significant. Comparing force single wheel, can reduce fertilizer. Through bench test, be 50 mm, angles are 30°, 45° 90°. The results show trend fluctuating test. change basically same. best when indicating this structure effectively material fluctuation 3.12% breakage rate 0.69%. seeding verified pneumatic device. When device runs smoothly, qualified reaches than 90%, leakage reduced 0%. Therefore, study provide reference research uniform seeding, drill application granular