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MECHANICAL ASSEMBLY PROVIDED WITH MEANS FOR MONITORING FOR A STRUCTURAL ANOMALY, A GEARBOX PROVIDED WITH SUCH A MECHANICAL ASSEMBLY, AND A METHOD OF MONITORING FOR A STRUCTURAL ANOMALY

  • US 20110230304A1
  • Filed: 03/15/2011
  • Published: 09/22/2011
  • Est. Priority Date: 03/19/2010
  • Status: Active Grant
First Claim
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1. A mechanical assembly provided with a sun gear together with a plurality of planet gears co-operating with said sun gear, the mechanical assembly having a planet carrier carrying each planet gear, each planet gear comprising a toothed body and rolling connection means interposed between a bottom portion of a pin of the planet gear and said body, each pin having a projecting top portion secured to said planet carrier, each body of a planet gear being movable in rotation firstly about its own first axis of rotation and secondly about a second axis of rotation of the planet carrier, said mechanical assembly including an outer annulus having an inner periphery of the outer annulus that cooperates with each planet gear, each planet gear being movable in an annular space situated between said inner periphery and said sun gear, each planet gear including a vibration sensor forming part of monitoring means for monitoring for a structural anomaly, said monitoring means being provided with a control member communicating with each vibration sensor in order to receive a measurement signal coming from each vibration sensor in order to enable anomaly monitoring to be performed, wherein said monitoring means include at least one antenna placed on an outer periphery of said annulus, said control member communicating with at least one vibration sensor via said antenna.

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