초록 ▼

The present invention provides a rolling roller for rolling steel sections and that can have the roller width changed while not having a drive mechanism for changing the roller width provided to the rolling roller itself, thereby having a simple structure that facilitates exchange, and also provides

The present invention provides a rolling roller for rolling steel sections and that can have the roller width changed while not having a drive mechanism for changing the roller width provided to the rolling roller itself, thereby having a simple structure that facilitates exchange, and also provides a rolling mill suitable for use with such a rolling roller. The rolling roller has rolling wheels on a roller shaft and a sleeve and that engage the sleeve with respect to the roller shaft. In addition, the sleeve and the roller shaft are tightened and engaged at a place other than the inner side of the roller wheel and oil injection to the place of tightening and engagement is performed via hydraulic fluid supply paths formed inside the roller shaft.

대표청구항 ▼

A rolling mill, comprising: a roller shaft; one sleeve fitted to said roller shaft, said roller shaft and said one sleeve forming an adjustable horizontal roll, a first rolling wheel mounted to said one sleeve and a second rolling wheel associated with said roller shaft, said one sleeve having a fir

A rolling mill, comprising: a roller shaft; one sleeve fitted to said roller shaft, said roller shaft and said one sleeve forming an adjustable horizontal roll, a first rolling wheel mounted to said one sleeve and a second rolling wheel associated with said roller shaft, said one sleeve having a first portion tightly fitted to said roller shaft and a second portion having a gap between said second portion and said roller shaft with said first rolling wheel mounted to said second portion; a mill housing; chock means for rotatably supporting said adjustable horizontal roll; adjustment means for adjusting a gap between outer shoulders of said first and second rolling wheels by relatively moving said first and second rolling wheels in either direction of an axis of said roller shaft, said adjustment means mounted to said housing and releasably engaging said chock means; and hydraulic fluid supply means for injecting fluid between said roller shaft and said first portion of said one sleeve supported by a first chock of said chock means to expand said first portion in a radial direction and release the tightly fitted said first portion from said roller shaft thereby enabling said adjustment means to adjust the gap, wherein an initial gap is set prior to commencing rolling by said adjustment means positioning said first and second rolling wheels as needed and the gap is adjustable during rolling by said adjustment means positioning said first rolling wheel when fluid is injected by said hydraulic fluid supply means.