Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1989-12-01
1991-05-28
Eley, Timothy V.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291132, B21B 1302
Patent
active
050182587
ABSTRACT:
A support arrangement is provided for a variable-crown having a non-revolving roll axle (11) on which the roll mantle (12) revolves. The roll mantle (12) is supported on the roll axle (11) by means of hydraulic loading members (20) which comprise pistons (21) fitted into cylinder bores (15) formed in the roll axle (11), as well as glide shoes (22) supported on the inner face (14) of the roll mantle. The pistons (21) are composed of bushings provided with inside cavity spaces (23). The glide shoes (22), which are attached to the outer ends of the pistons through the cavity spaces (23) from outside the bushings, are hydraulically sealed (30), and are pivotal and displaceable in the radial direction of the roll (10). A hydraulic pressure medium is passed into the cavity spaces (23) in the pistons (21) so as to act upon the interior of the glide shoes (22). The hydraulic medium passes, via the cavity spaces (23), through capillary bores (28,28') into pockets (31), the latter acting as hydrostatic lubrication spaces of the glide shoes (22).
REFERENCES:
patent: 3802044 (1974-04-01), Spillmann et al.
patent: 3932921 (1976-01-01), Biondetti
patent: 4241482 (1980-12-01), Biondetti
patent: 4373238 (1983-02-01), Guttinger
patent: 4815183 (1989-03-01), Bondetti
Dungba Vo Peter
Eley Timothy V.
Valmet Paper Machinery Inc.
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