ROLLING STAND OF MILL FOR COLD ROLLING OF TUBES Russian patent published in 1996 - IPC

FIELD: cold rolled tube production. SUBSTANCE: stand includes rolls, engaging with supporting plates in a housing and placed into a movable cartridge with possibility of their demounting. The movable cartridge has a drive unit for reciprocation motion of it with use of a lever, having two rocking articulation joint assemblies - one for operating with a roller stand and the other for operating with the roll stand. The rolls with supporting barrels have two (for each roll) joining and driving pinions, mounted on trunnions of the rolls and engaging with toothed racks, being moved together with the stand. A transfer ratio of the cartridge drive lever is proportional to a ratio of diameters of the roll barrel and the roller. A body of the cartridge is joined with the drive lever with use of tie rods and pins, mounted in fixing washers, having elastic members in grooves of rocking blocks, placed in struts of the lever. The tie rods have on their ends a limiting dent. EFFECT: enhanced structure of the stand. 2 cl, 5 dwg