초록 ▼

Adjustable doffer structure for a cotton harvester row unit provides single wrench doffer adjustment without requiring loosening of a locking nut. The upper end of a doffer column bearing support includes a screw member threaded through an adjusting housing and projecting above the row unit housing.

Adjustable doffer structure for a cotton harvester row unit provides single wrench doffer adjustment without requiring loosening of a locking nut. The upper end of a doffer column bearing support includes a screw member threaded through an adjusting housing and projecting above the row unit housing. A Belleville spring is sandwiched between a locking nut threaded onto the upper end of the screw member and the adjusting housing. The nut and Belleville spring provide sufficient holding torque to maintain a given doffer adjustment during normal row unit operation, but the holding torque can be overridden with a wrench used to make the doffer adjustment. A locking plate is placed over the nut to maintain locking nut torque.

대표청구항 ▼

In a cotton harvester row unit having panel structure, an upright picker drum with rows of spindles and an upright doffer column with doffer pads adapted for doffing cotton from the spindles, doffer column height adjustment structure comprising: a doffer adjusting housing connected to the panel stru

In a cotton harvester row unit having panel structure, an upright picker drum with rows of spindles and an upright doffer column with doffer pads adapted for doffing cotton from the spindles, doffer column height adjustment structure comprising: a doffer adjusting housing connected to the panel structure; a bearing support movably mounted within the doffer adjusting housing and retaining the doffer column at a preselected vertical location dependent on the location of the bearing support; an adjusting member connected to the bearing support and having a shaft portion threaded vertically through the doffer adjusting housing and rotatable relative to the housing for moving the bearing support vertically upon relative rotation of the shaft portion and housing; a torque retaining member supported on the shaft portion; a single locking nut threaded onto the shaft portion and sandwiching the torque retaining member between the locking nut and the doffer adjusting housing, the nut and torque retaining member maintaining a preselected locking torque between the shaft portion and the housing for normally maintaining the preselected vertical location of the doffer column; and wherein the shaft portion includes a wrench receiving portion for rotating the shaft portion relative to the housing while the preselected locking torque is maintained so that loosening of the locking nut to move the bearing support and change the preselected vertical location of the doffer column is obviated.