WINCH DRUM UTILIZING COMPOSITE FLANGES

摘要

A winch drum (10) including a barrel portion (12) having composite flanges (16) secured on each end. The flanges (16) including two or more partially independent, segmented, modules (18, 20, 22) with each modular section placed diametrically one on the other thus forming an expanding concentric flange (16). The first modular section (18) secured to the winch drum (10), barrel portion (12) having a relatively small outside diameter with respect to the barrel (12) is treated, from a design standpoint, as the primary shear module. The second (20) and subsequent concentric sections (22) are only secured to the lower modular section (18) at their outer faces (48) and treated independently for shear and bending with each cross section being sized to accommodate the forces applicable only to that modular section thus reducing shear and bending in these modules.