Method and apparatus for location of anomalous signal in a radial bearing
First Claim
1. An apparatus for locating a source position of an anomalous signal in a radial bearing that includes an inner ring, an outer ring coaxial with the inner ring, and a plurality of balls between the inner ring and the outer ring, said apparatus comprising:
- (a) a track of at least one of the inner ring and outer ring divided into a predetermined number of equal sections;
(b) an inner-ring positional detection sensor to detect a rotational position of the inner ring;
(c) a ball positional detection sensor to detect a revolution position of the balls;
(d) a signal detection sensor to detect an anomalous signal generated from the radial bearing;
(e) an arithmetic unit to calculate positions of contact between the balls and the inner or outer ring from outputs from said inner-ring positional detection sensor and said ball positional detection sensor when said signal detection sensor detects said anomalous signal; and
(f) means for locating as an anomalous signal source position one of said predetermined number of equal sections from which a largest number of anomalous signals are generated.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for locating a source position of an anomalous signal in a radial bearing comprises using a signal detection sensor, an inner-ring positional detection sensor for detecting a rotational position of a bearing inner ring, and a ball positional detection sensor for detecting a revolution position of bearing-balls. Signals from the signal detection sensor, inner-ring positional detection sensor, and ball positional detection sensor are used to locate positions of contact between balls and the inner or outer ring at a time of anomalous signal generation, within a load zone, as an anomalous signal source position.
22 Citations
16 Claims
-
1. An apparatus for locating a source position of an anomalous signal in a radial bearing that includes an inner ring, an outer ring coaxial with the inner ring, and a plurality of balls between the inner ring and the outer ring, said apparatus comprising:
-
(a) a track of at least one of the inner ring and outer ring divided into a predetermined number of equal sections; (b) an inner-ring positional detection sensor to detect a rotational position of the inner ring; (c) a ball positional detection sensor to detect a revolution position of the balls; (d) a signal detection sensor to detect an anomalous signal generated from the radial bearing; (e) an arithmetic unit to calculate positions of contact between the balls and the inner or outer ring from outputs from said inner-ring positional detection sensor and said ball positional detection sensor when said signal detection sensor detects said anomalous signal; and (f) means for locating as an anomalous signal source position one of said predetermined number of equal sections from which a largest number of anomalous signals are generated. - View Dependent Claims (2, 11, 12, 13, 14, 15, 16)
-
-
3. A method for locating a source position of an anomalous signal in a radial bearing that includes an inner ring, an outer ring coaxial with the inner ring, and a plurality of balls between the inner ring and the outer ring, said method comprising the steps of:
-
(a) dividing a track of at least one of the inner ring and outer ring into a predetermined number of equal sections; (b) using an inner-ring positional detection sensor to detect a rotational position of the inner ring; (c) using a ball positional detection sensor to detect a revolution position of the balls; (d) using a signal detection sensor to detect an anomalous signal generated from the radial bearing; (e) using an arithmetic unit to calculate positions of contact between the balls and the inner or outer ring from outputs from said inner-ring positional detection sensor and said ball positional detection sensor when said signal detection sensor detects said anomalous signal; and (f) locating as an anomalous signal source position one of said predetermined number of equal sections from which a largest number of anomalous signals are generated. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
-
Specification