Controlled deflection roll using inert gasses and independent lu

Details Controlled deflection roll using inert gasses and independent lu Controlled deflection roll using inert gasses and independent lu

1989-02-13

1990-02-06

Gorski, Joseph M.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29132, B21B 2706

Patent

active

048979058

ABSTRACT:
Apparatus for controlling the oxygenation of both the bearing lubrication oil and the hydraulic oil used for actuating the roll shell support elements in a controlled deflection roll, such as used in the papermaking industry, includes a seal at either end of the controlled deflection roll which establishes a gas-impervious seal between the roll shell support and rotation bearings at either end of the roll and the interior of the roll. A source of pressurized inert gas is linked to both the interior of the roll and to the reservoir of hydraulic oil used to actuate the roll shell support shoes. This prevents oxygen from interfacing with the hydraulic oil at the only two points in the closed system where the hydraulic oil and the atmosphere would otherwise come into contact. A separate bearing oil lubrication system having its own reservoir is maintained to supply bearing lubricant to the bearings and return it to a sump while maintaining the bearing lubricant separate from the hydraulic oil.

REFERENCES:
patent: 3726338 (1973-04-01), Sorenson
patent: 4117706 (1978-10-01), Lami
patent: 4282638 (1981-08-01), Christ et al.
patent: 4282639 (1981-08-01), Christ et al.
patent: 4299162 (1981-11-01), Hartman et al.
patent: 4307501 (1981-12-01), Ahrweiler
patent: 4402207 (1983-09-01), Buder
patent: 4679287 (1987-07-01), Allard
Chemical Engineering, Philip Blakey & Gary Orlando, "Using Inert Gases for Purging, Blanketing and Transfer", May 28, 1984 pp. 94-102.

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