US 12,345,599 B2
System for determining the wear of a bearing and associated method
Franck Landrieve, Fondettes (FR); Lionel Martin, Kensington (AU); Ghufran Jan, Oakleigh (AU); and Farrukh Yaqub, Pakenham (AU)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE); and SKF Australia Pty Ltd, Oakleigh (AU)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE); and SKF Australia Pty Ltd, Oakleigh (AU)
Filed on May 25, 2023, as Appl. No. 18/323,932.
Claims priority of application No. 102022206188.8 (DE), filed on Jun. 21, 2022.
Prior Publication US 2023/0408373 A1, Dec. 21, 2023
Int. Cl. G08B 21/10 (2006.01); F16C 19/36 (2006.01); F16C 19/52 (2006.01); G01M 13/04 (2019.01)
CPC G01M 13/04 (2013.01) [F16C 19/362 (2013.01); F16C 19/522 (2013.01); F16C 2233/00 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for determining wear of a bearing in a machine, the bearing including a first ring and a second ring capable of rotating concentrically relative to one another, the method comprising the steps of:
a) identifying a set of parameters of the machine acting on a value of a load applied on the bearing;
b) measuring a plurality of axial differential distances between the first ring and the second ring of the bearing, for each measured axial differential distance measuring a slew angle between the first and the second rings and the set of parameters associated with the axial differential distance, when the machine is operating during a predefined duration following an implementation of the bearing in the machine;
c) determining a relationship between the measured axial differential distances, the measured slew angles and the measured sets of parameters;
d) measuring the axial differential distance between the first ring and the second ring of the bearing, the slew angle and the set of parameters associated with the axial differential distance during normal operation of the machine;
e) determining an axial distance from the relationship determined at step c), and the slew angle and the set of parameters measured at step d);
f) determining a representative parameter of the wear of the bearing by subtracting the axial distance determined at step e) from the axial differential distance measured at step d); and
g) determining a state of wear of the bearing according to the value of the representative parameter.