| 摘要 |
Device to replace the rolling rolls for use in a four-high rolling stand to roll sheet and/or wide plate, the rolls (11, 12) being supported by chocks (13) and cooperating axially with connecting liners (16) associated with the spindles (15) connected to the drive means, the device comprising a support and travel unit (28) with a first inactive position (28a) and a second active position (28b) of temporal support and maintenance in position at least of the liner elements (16), the travel and support unit (28) comprising a plate (20) associated with lifting means (19) and including in a substantially central position an aperture (21) to receive the liner (16) associated with the lower roll (12), and at the upper end, a positioning hollow (22) which cooperates, when the travel and support unit (28) is in its active position (28b), with the liner (16) associated with the upper roll (11).
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