Low Torque And Vacuum Seed Meter

摘要

A seed meter is provided for use with a row crop planter or seed planter that includes a seed disk assembly that rotates within a meter housing cavity and that has a seed disk assembly cavity in which a vacuum pressure is applied for pulling seeds into seed pockets of a seed disk of the seed disc assembly. The vacuum pressure is applied to the seed disk assembly by pulling a vacuum airflow through a spindle that supports the seed disk assembly. A wiper basket is arranged in a fixed position within the seed disk assembly cavity and seals against the seed disk assembly as a support plate and seed disk of the seed disk assembly rotate over the wiper basket, so that side walls of the wiper basket create a boundary between a vacuum zone and a non-vacuum zone inside of the seed disc assembly cavity.

主权项

1. A seed meter, comprising:
a housing assembly defining a housing cavity; and a seed disk assembly that is arranged for rotation inside of the housing cavity, the seed disk assembly including,
a support plate having a back wall including an inwardly facing surface;a seed disk that has an inwardly facing surface and that is mounted to the support plate so as to define a seed disk assembly cavity between the inwardly facing surfaces of the support plate back wall and the seed disk; anda wiper basket arranged within the seed disk assembly cavity and engaging the inwardly facing surface of the seed disk so as to create a seal that separates the seed disk assembly cavity into a vacuum zone in which a vacuum pressure is present in the seed disk assembly cavity for holding seeds against the seed disk and a non-vacuum zone in which the seeds are free to fall away from the seed disk.