Pivot limiting mechanism for troughing idler.

摘要

A troughing idler for use in supporting a conveyor belt of a troughed belt conveyor system in which the troughing idler includes a pair of spaced center rolls and a pair of angled side troughing rolls. The pair of center rolls are mounted to a pivot bracket and their axes of rotation are spaced from each other by a span length. The center rolls are selected such that each center roll has the same outer diameter. The size of the center rolls is selected such that the outer diameter of the center rolls is greater than the outer diameter of each side troughing roll. The increase in the outer diameter of the center rolls relative to the outer diameter of the side troughing rolls reduces the amount of indentation resistance for the troughing idler. The troughing idler further includes a pivot limiting mechanism that limits the amount of clockwise and counterclockwise rotation of the pivot brackets used to support the pair of center rolls.