FIELD: spindles of rolling mills.
SUBSTANCE: articulation joint includes yoke and sleeve between which in lengthwise grooves cylindrical rollers are arranged. Grooves of yoke are semi-cylindrical ones. To sleeve lengthwise changeable inserts are secured; said inserts have grooves with curvilinear lengthwise profile. Cross sections of grooves are in the form of portions of variable-radius circles whose radiuses increase from minimum value in central cross section till maximum one on edges of working portions of grooves. It provides curvilinear lengthwise profile of grooves in sleeve. Centers of circles of cross sections of sleeve grooves are arranged on their rectilinear lengthwise axes. Number of grooves of yoke exceeds that of sleeve and it is multiple to number of groves of sleeve.
EFFECT: increased useful life period of spindles, reduced costs for their exploitation, improved quality of rolled metal, shortened idling time, enhanced efficiency of rolling mill.
8 dwg
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