Method and device in an adjustable crown roll

Details Method and device in an adjustable crown roll Method and device in an adjustable crown roll

1987-11-23

1989-08-15

Eley, Timothy V.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291161, 291162, B21B 3124

Patent

active

048561541

ABSTRACT:
Method in a variable-crown roll in which hydraulic loading elements or a series of hydraulic loading elements are used. Such series of elements acts along a plane of a nip that can be formed between the variable-crown roll and a counter-roll thereof, with such elements or series being situated between a central axle of the roll and a cylindrical mantle which is rotatable about the central axle through radial bearings. The central axle is supported by axle journals thereof on deflection bearings. In the method, the central axle is pivoted about the deflection bearings thereof over an angle which is within a range of about 30.degree. to 180.degree.. By the effect of such pivoting, the variable-crown roll and the mantle thereof are shifted away from the nip, so that the nip is opened. This shifting is produced by the axis of pivoting of the deflection bearings being situated by a certain eccentricity distance further away from a nip line of the closed nip, than the axis of rotation of the roll mantle.

REFERENCES:
patent: 3838480 (1974-10-01), Depuy
patent: 3885283 (1975-05-01), Biondetti
patent: 4092916 (1978-06-01), Link et al.
patent: 4241482 (1980-12-01), Biondetti
patent: 4319522 (1982-03-01), Marchioro et al.
patent: 4327468 (1982-05-01), Kusters et al.
patent: 4477954 (1984-10-01), Molinatto

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