US 12,276,492 B2
Device and method for estimating a load in a bearing having high frequent oscillations
Stijn Van Eesbeek, Doorn (NL); Elizabertus Maljaars, Houten (NL); and Johannes Ravesloot, Utrecht (NL)
Assigned to Aktiebolaget SKF, Gothenburg (SE)
Filed by Aktiebolaget SKF, Gothenburg (SE)
Filed on Sep. 30, 2022, as Appl. No. 17/957,082.
Claims priority of application No. 102021211493.8 (DE), filed on Oct. 12, 2021.
Prior Publication US 2023/0116813 A1, Apr. 13, 2023
Int. Cl. G01B 11/16 (2006.01); G01L 1/18 (2006.01)
CPC G01B 11/16 (2013.01) [G01L 1/18 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A device for estimating a load in a bearing, the bearing comprising a first ring, a second ring, and a row of rolling elements arranged between the first ring and the second ring, the device comprising:
at least one sensor probe attached directly to the first ring without a sensor holder, the at least one sensor probe being configured to measure a displacement and/or strain of the bearing, the displacement and/or strain of the bearing being measured as a sensor signal waveform, the sensor signal waveform being a product of a carrier waveform and a load waveform,
a transmitting unit that transmits the sensor signal waveform from the at least one sensor probe to a receiving unit,
the receiving unit configured to receive the sensor signal waveform from the transmitting unit, and
an electronic control unit connected integrally to the receiving unit and configured for processing the received measured sensor signal waveform, by
a rolling element frequency determined from the measured sensor signal waveform,
the carrier waveform determined based on the determined rolling element frequency and the measured sensor signal waveform,
the load waveform determined based on determined carrier waveform and the measured sensor signal waveform, and
the load in the bearing estimated from the determined load waveform.