| 摘要 |
PURPOSE:To prevent the slip between intermediate rolls and work rolls and to decrease the frequency of changing the rolls by disposing the shafts of the two intermediate rolls in a multistage cluster rolling mill in series, and mounting bevel gears respectively to the opposed end parts of the shafts. CONSTITUTION:Gears 15, 17 are mounted respectively to the revolving shafts 18, 19 of the two intermediate rolls 2a, 2a for work rolls in a multistage cluster rolling mill. Revolving shafts 20, 21 are provided on the outside of the driving shaft 10 of a motor 23 and gears 14, 16 are mounted thereto. The revolving shafts 18, 19 of the roll 2a are meshed with the gears 14, 16. Gears 13a, 13a are mounted to the opposed end faces of the shafts 20, 21 respectively so as to oppose thereto and four stationary shafts 11 are radially disposed between the same at a right angle to the shaft 10. A gear 12 intermeshing with both of the gears 13a, 13b is provided to constitute a differential gear mechanism. The generation of a slip in either of the intermediate rolls with respect to the work rolls is prevented by such mechanism, whereby the failure and consequent exchange of the rolls are decreased. |
