WIDE STRIP COILER DRUM Russian patent published in 2006 - IPC B21C47/30 

FIELD: rolled stock production, mainly wide strip coilers in mills for cold and hot rolling.

SUBSTANCE: drum includes hollow shaft with lengthwise protrusions forming cross like section carrying segments and mechanism for clamping-unclamping segments. Said mechanism includes tie rod arranged in central opening of shaft and springy hydraulic drive for moving tie rod. Mutually normal lengthwise slits are formed in protrusions of shaft and in tie rod. Wedges with two wedge surfaces engaging with reciprocal surfaces of wedges formed on inner surface of segments are mounted in said slits. Wedges are formed in central part of segments. In one wedge mounted in slits of shaft and of tie rod there is lengthwise slit for passing over wedge and gaskets are placed on surface of one of said wedges. Engagement surfaces of shoulders are inclined ones.

EFFECT: lowered quantity of crops of strip head part, improved quality of strip coiling, reduced conicity degree of coils due to sustaining constant effort for unclamping all segments.

6 dwg