| This paper has concluded the eccentric and socket-roller seeding device filling seed outside is a ideal rape no-tillage and direct seeding device on the basis of formal choice, contrast test and analysis for seeding device. In this paper the primarily tasks for demonstrating seeding performance of seeding device and applying it to rape no-tillage and direct seeding are as follows:1 , The test about the physical properties of rape Seed.2, Formal choice for seeding device and contrast test of mold hole. Through formal choice for seeding device and contrast test of mold hole, at last the eccentric and socket-roller seeding device and no.6 mold hole are adopted.3 , The laboratory table for seeding performance of seeding device is designed and frame test of seeding performance for seeding device is done. The laboratory table is designed with rational transmission project , transmission mode and drive. It can experimentalize seeding performance of seeding quantity, seeding uniformity, cavity rate, broken rate and etc. By the test, the relation of speed and seeding quantity,seeding uniformity, broken rate, and the relation of seeding quantity and column quantity of hole have been gotten. The apiece row consistency variability coefficient of seeding quantity is 2.28%,the stability variability coefficient of the full seeding quantity is 1.09%. The primary and secondary factor that affect cavity rate is the ratio between the quantity of seed and seed box, the average diameter of rape seed, the seed of seed-wheel, the preferable combination is A1B1C3, namely the seed of seed-wheel is 28 r/min, the average diameter of rape seed is 1.0 mm and the ratio between the quantity of seed and seed box is 2/3 ; The primary and secondary factor that affects eligibility rate is the seed of seed-wheel, the ratio between the quantity of seed and seed box, the average diameter of rape seed, the preferable combination is A1B3C2, namely the seed of seed-wheel is 28 r/min, the average diameter of rape seed... |
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