CONTROLLED THRUST MECHANISM OF SCREW ROLLING MILL Russian patent published in 2000 - IPC

FIELD: rolled tube production, namely, equipment of rear tables of piercing, expanding and rolling out mills operating with short mandrel. SUBSTANCE: controlled trust mechanism includes frame 1, carriage 3 driven by drive unit 2 and having lock 4 and thrust head 5 mounted on rotary shaft 7 driven by means of drive unit 6; water feed valve 8; branch pipes 9 for feeding cooling water joined by means of threaded coupling 10; hydraulic joint assembly for automatic centralized supply of lubricant mounted on shaft 7 and joined with thrust head by means of pipeline. One of branch pipes 9 is connected with end cover 13 of thrust head by means of flat flange. In housing 15 in end cover 13 of thrust head there are ducts 16 for supplying water and lubricant. EFFECT: enhanced operational reliability of controlled thrust mechanism at long-period continuous rolling with short cycle. 5 dwg