| 摘要 |
A vehicle-mounted sowing device includes a continuously rotating drum, centered on a horizontal shaft, axially divided into a pick-up chamber and a distributing chamber, the latter being peripherally subdivided into a multiplicity of outwardly open compartments which communicate with the pick-up chamber at the zenith of the drum and with an outlet at the nadir thereof. The peripheral wall of the pick-up chamber has a multiplicity of generally radial bores leading to a suction manifold via an arcuate slot which surrounds the drum over about half its circumference, terminating at the zenith where seeds or kernels introduced into this chamber at its bottom and carried by the suction in respective bores to the top are released from their seats to drop through a connecting chute into respective compartments of the pick-up chamber. Stationary strippers sweep the peripheral wall of the pick-up chamber in the vicinity of the bores just ahead of the point of release to dislodge supernumerary kernels; a brush and/or a scraper beyond the zenith serve to detach seed fragments from their seats or push them deeper into the bores which preferably widen toward the suction manifold. The slot of this manifold is formed on a beveled peripheral face of the drum housing juxtaposed with a similar face on the drum provided with the inlets to the seat-forming bores of the pick-up chamber.
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