TEST OF THE SCREENING AND PARAMETER OPTIMIZATION OF SWING SEPARATION SIEVE IN FIELD OPERATION

The need for clarity regarding the sieving characteristics of potato-soil mixture, as provided by swing separating sieve a potato digger, well derived problems low transportation efficiency, high damage rate and unearthing rate, are main reasons this study. Dynamic tracking technology is proposed to collect motion state potatoes, during process soil separation. Considering conveying speed, indicators, while parameters (crank rotational inclination, crank radius direction angle) influencing factors, an orthogonal regression test carried out, where response surface used analyze each factor, its influence on screening index, optimize it accordingly. results show that there linear relationship between indexes, with parameter showing different contribution rates indexes. best combination speed 190 r /min, inclination 9.7°, 40 mm angle 18.8°. corresponding 0.713 m/s, 98.7% 3.224%, respectively. After optimization, 1.43 times higher, increased 2.5% reduced 60%. research can provide theoretical support structural design diggers.