HINGE OF UNIVERSAL SPINDLE Russian patent published in 1996 - IPC

FIELD: rolling production, hinge joints of rolling mills drive main lines universal spindles. SUBSTANCE: aim is to increase reliability, service life and loading capacity. Rotating moment is transferred from bush 2 to holder 1 through barrel-type rolls 3. Design specific feature is that rolls end sections are made in the form of truncated cones, that are conjugated with their big bases with central barrel-type section of roll. Generatrices of cones are conjugated with generatrix of central section in its extreme points tangentially and arc length of central part is determined according to dependance. Length of extreme parts is 0.4 - 1.0 of maximum diameter of roll barrel. It allow to decrease contact pressure on end parts of rolls, to decrease their axial dimensions and to improve distribution of scaling marks between rolls. EFFECT: increased reliability, service life and loading capacity. 2 cl, 7 dwg