SECTIONAL SHAFT OF BELT CONVEYOR ROLLER Russian patent published in 2003 - IPC

FIELD: mechanical engineering; conveyor transport. SUBSTANCE: sectional shaft of belt conveyor roller has two semi-shafts and rod whose end parts are connected with semi-shafts by mechanical non-split joints by press-fitting into end face holes in the semishafts. Said end face holes are cylindrical, with shaped recesses, and end parts of rod are made in form of round section rods being connected with semi-shafts by hot press- fitting of previously molten end parts of rods into face holes and shaped recesses of semi-shaft using for melting a resistance welder, or in cold state, depending on shape of recesses of semi-shaft end face holes, thus forming turnable or fixed non-split joints relative to longitudinal axis connected end face parts of rod with semishafts. Shape of recess can be made as surfaces of rotation with broken and/or curvilinear generatrix or in form of screw grooves to form turnable or fixed mechanical non- split joints of rod end parts and semi-shafts relative to longitudinal axis, or in form of ring conical grooves located in places of mating of side and bottom surfaces of semi-shaft end face holes. EFFECT: increased strength of mechanical non-split joints of end parts of rod and semi-shafts. 4 cl, 22 dwg