| 摘要 |
PURPOSE:To improve the life of rotating and driving means considerably in a rolling mill provided with a pair of rolling rolls which are inclined within a horizontal plane by disposing the rotating and driving means for rolls by deviating the output shafts thereof in a rolling direction. CONSTITUTION:An upper (or lower) roll 1 is driven by an electric motor 30 via a coupling 26 on a rolling roll side, a spindle 31, a coupling 27 on a driving machine side, and a stand 29 including pinions 32, 33. The upper output shaft 28 and lower output shaft 28' of the stand 29 offset to the inlet side and outlet side of the rolling mill respectively by delta. If the distance between the center C of the roll 1 and the rotating center of the coupling 26 is defined as L, the distance between the rotating center of the coupling 26 and the rotating center of the coupling 27 as (l), and the angles of inclination of the couplings 26, 27 are defined as thetaR, thetaM respectively, the equationIholds. If the angle thetaC of inclination of the roll 1 is inclined in an thetaC=0-thetacmax range, the rolling direction is offset by delta=tanthetacmax, whereby the thetaM is decreased from the equation II to the equation III. |
