公开(公告)号：US20130032363A1

公开(公告)日：2013-02-07

申请号：US13195125

申请日：2011-08-01

申请人： KEITH A. CURRY ,  JASON D. WALTER ,  ANDREW C. DOCHTERMAN ,  MICHAEL E. FRASIER

发明人： KEITH A. CURRY ,  JASON D. WALTER ,  ANDREW C. DOCHTERMAN ,  MICHAEL E. FRASIER

IPC分类号： A01B63/32 ,  A01B63/24

CPC分类号： A01C7/205 ,  A01B63/24

摘要： A supplemental downforce system is shown for a ground working implement having a frame and a plurality of ground engaging row units movably mounted to the frame for up and down movement relative to the frame. The downforce system includes at least one actuator between the frame and each row unit to apply an up or down force to each row unit. The actuators are assigned to one group of at least two groups of actuators. A control system controls the down force applied by each group of actuators separately so that each group of actuators is given the amount of supplemental down force that group of row units needs. In a closed loop feedback system, at least one row unit in each group of row units is equipped with a load sensor so that feed back of the soil reaction force on the row unit is supplied to the control system.

摘要翻译： 示出了用于具有框架的地面作业工具的辅助下压力系统，以及可移动地安装到框架上的多个地面接合排单元，用于相对于框架的上下移动。 下压力系统包括在框架和每个行单元之间的至少一个致动器，以向每个行单元施加向上或向下的力。 致动器分配给一组至少两组致动器。 控制系统分别控制每组致动器施加的向下力，以使得每一组致动器具有一组行单元所需的补充向下力的量。 在闭环反馈系统中，每组行单元中的至少一行行单元配备有负载传感器，使得行单元上的土壤反作用力的反馈被提供给控制系统。