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US 11,658,449 B2Granted
Slipring with wear monitoring
AssigneeSchleifring GmbH
InventorsChristian Holzapfel, Matthias Hermann, Holger Steffens, Holger Häffner
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Abstract
A slipring with at least one slip ring module having at least one sliding track, and at least one wear indication track. A wear indication circuit is connected to the at least one wear indication track for monitoring electrical properties of the wear indication track and signaling an abnormal slipring condition. A wear indication track may be exposed to higher load, higher rotation speed, higher brush pressure force, or other lifetime-reducing influence as compared to a normal sliding track.
Claims9
A slipring assembly comprising:
- a slipring module, a slipring brush block, and a wear-indication circuit,
- the slipring module further comprising a plurality of sliding tracks,
- the slipring brush block further comprising a plurality of sliding brushes configured to slide on sliding tracks from the plurality of sliding tracks,
- wherein at least one combination of a sliding track with a respectively-corresponding sliding brush is a wear-indication track-brush pair that is electrically connected to the wear-indication circuit,
- wherein the sliding track of said wear-indication track-brush pair has a shorter lifetime than that of any remaining track from said plurality of sliding tracks,
- wherein the sliding brush of said wear-indication track-brush pair contains a structural feature that, in operation of the slipring assembly, causes a lifetime of said sliding brush to be shorter than that of any other sliding brush of the slipring assembly.
3 more elements
Dependencies are inferred from the claim text.