Apparatus for ascertaining the magnitude of stresses upon the bearings for rolls in calenders and like machines
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United States of America Patent
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-
Jul 23, 1991
Grant Date -
N/A
app pub date -
Feb 22, 1990
filing date -
Mar 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The cylindrical internal surfaces of inner races of antifriction bearings between the end portions of a deformable shell and the stationary carrier for the shell in a roll for use in calenders surround with some clearance the adjacent cylindrical external surfaces of the carrier. The magnitude of stresses between the pairs of internal and external surfaces is monitored by several sensors at least some of which have pockets machined into the respective internal and/or external surface. The pockets receive a pressurized hydraulic fluid which leaks along paths defined by the respective pair of surfaces to be collected in a tank. An evaluating system monitors the pressure in the pockets and serves to regulate the pressure of supplied fluid and/or the hydrostatic or other supporting elements between the carrier and the shell.
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