SEALING UNIT FOR PNEUMOHYDRAULIC SHOCK-ABSORBER WITH CYLINDER AND ROD Russian patent published in 2001 - IPC

FIELD: mechanical engineering. SUBSTANCE: sealing unit of pneumohydraulic shock-absorber includes cylinder, axle box, nut, rod, sealing packs, outer ring with inner cone, inner ring with outer cone, additional nut and washer. At least one of rings is provided with cut slots over engageable surface; these slots are located over entire perimeter on thinned side. In setting the rings and washer, additional nut is screwed in clearance between cylinder and axle box at calibrated force, thus acting on inner ring through washer. Inner ring which is engageable with outer ring due to longitudinal slots available in rings takes up all technological clearances between cylinder and axle box using wedge effect, thus stiffening the axle box and retaining design clearances between axle box and rod. EFFECT: enhanced reliability and serviceability of shock-absorber and its power intensity. 3 cl, 2 dwg