Structure of bearing of geared shaft

Details Structure of bearing of geared shaft Structure of bearing of geared shaft

1992-04-13

1993-06-22

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384448, 384519, F16C 2506

Patent

active

052211460

ABSTRACT:
A structure of bearing journaling a geared shaft is disclosed in which a piezoelectric sensor is installed in a space between an outer ring of the bearing and its casing for detecting at least one of a force applied to the bearing and generated due to a mesh of gears, its acceleration, velocity, or displacement and outputting a detection signal according to a result of detection of the force and a piezoelectric actuator installed in the bearing so as to be in series with the piezoelectric element sensor or so as to be axially symmetrical to the opposing piezoelectric element sensor for providing an expansion and constriction movement according to a drive signal, the driving signal being based on the detection signal and having a phase opposite to the phase of the force detected by the piezoelectric element sensor.

REFERENCES:
patent: 1479313 (1924-01-01), Pallavicini
patent: 5029118 (1991-07-01), Nakajima et al.
patent: 5060760 (1991-10-01), Long et al.
"Gear of a Designer" by Hirasawa, Rikogaku Sha, (1970) 302.

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