Landphair Donald K.,Frasier Michael E.,Liu James Z.,Walter Jason D.,Green Lawrence D.
申请号：
US201715617462
公开号：
US10143128(B2)
申请日:
2017.06.08
申请国别(地区):
美国
年份:
2018
代理人:
Michael Best & Friedrich LLP
摘要：
A seeding machine includes a main frame, and a row unit coupled to the main frame. The row unit has a row unit frame, a gauge wheel coupled to the row unit frame, and a furrow opener coupled to the row unit frame, the furrow opener having a stationary or rotating surface that contacts and moves soil. The row unit also includes a furrow closer, the furrow closer having a stationary or rotating surface that contacts and presses soil. The seeding machine also includes a downforce adjustment system for adjusting an amount of downforce applied to the row unit, the downforce adjustment system including a moisture sensor, a controller configured to receive a signal from the moisture sensor, and an actuator configured to change the amount of downforce applied to the row unit based on the signal received by the controller.
