Air seed meter with adjustable singulator

摘要

A seed metering system, for use on a row crop planter, selects individual seeds from a seed reservoir and dispenses the seeds singularly at a controlled rate. A direct drive seed metering system includes a seed disc having a plurality of suction apertures with a recessed pocket adjacent to an aperture. The recessed pockets act to agitate seeds in the seed reservoir and to direct seed flow towards the apertures. A seed path relief system provides for allowing the placement of the seeds such that they are released from an outer edge of the seed disc. An adjustable seed singulator is mounted adjacent to the face of the seed disc where inner and outer blades are adjusted radially to compensate for the singulation of various seed sizes and shapes. The seed disc is driven via engagement of an internal gear with the external gear of an independent drive motor.

主权项

1. An air seed meter, comprising:
a housing including an inner chamber; a disc mounted in said housing for rotation about an axis and having a plurality of seed cells spaced radially about the axis for retaining seeds; and an adjustable singulator for eliminating seed multiples from said seed cells, said singulator including two blades adjacent to and at least partially surrounding the seed cells; wherein the blades of the singulator are simultaneously adjustable such that a first blade is translated radially away from the axis while a second blade is adjusted radially toward the axis, and that the first blade is adjustable radially toward the axis while the second blade is adjusted radially away from the axis; and said singulator comprising a curved rim portion extending perpendicular to the disc and at least partially biased towards the axis of the disc.