| 摘要 |
The invention concerns a system of oil feed ducts for a variable-crown roll, which roll (10) comprises a stationary roll axle (11) and a roll mantle (12) that is arranged revolving on said axle and that is supported on the roll axle (11) by means of hydraulic loading elements (131...13n) acting upon the inner face (12') of the roll mantle in the radial direction, by means of which loading elements the axial profile of the roll mantle (12) can be regulated. Into the roll axle (11), an axial through hole (16) has been formed, which communicates with the cylinder bores (141...14n) or equivalent of the hydraulic loading elements (131...13n) through substantially radial bores (151...15n) or equivalent ducts (56a). In the axial through hole (16), at least through one of the roll (10) ends, at least oil feed pipes (211...21n) have been installed, through which pipes a pressure fluid is arranged to be fed to the hydraulic loading elements (131...13n). Into the axial through hole (16) in the roll axle (11), at the location of the loading elements (131...13n), an intermediate flange (53) or equivalent has been installed, which operates as a distributor piece, which is connected with the loading element (131...13n), and to which the oil feed pipe (211...21n) passing to the loading element is connected so that, through said distributor piece, the pressure fluid can be passed to the loading (131...13n), whereby the loading produced by means of said loading element (131...13n) is adjustable in the desired way. |
