Belt-tensioning system for round balers

摘要

A round baler of typical construction has a novel belt and roll system arranged to provide a pair of lower rolls from which oppositely running stretches extend upwardly to a pair of closely spaced apart intermediate rolls which are journaled on a carrier means which in turn is movable upwardly as bale size increases between the oppositely running stretches. The bale is confined below the two intermediate rolls while other stretches of the belt are trained about additional rolls enabling deflecting of the chamber-forming stretches during bale formation. Control means is provided to act on the carrier to control upward movement of the carrier means and thus to control bale density in an improved and efficient manner. The control means further includes hydraulic means tied in with the hydraulic means that controls the bale-discharge gate.