Bearing monitoring method
First Claim
Patent Images
1. A non-contacting bearing isolator for a conveyor roller comprising:
- a. a stator secured to a shaft; and
b. a rotor secured to said conveyor roller, wherein the stator has a stator exterior end face axially distal from a primary bearing secured to said shaft, wherein said stator and said rotor cooperate to form a non-contacting labyrinth seal between said primary bearing and an atmosphere axially distal said stator exterior end face, said labyrinth seal comprising;
i. an exterior interface passage;
ii. an intermediate annular chamber;
iii. an interior interface passage; and
iv. an immediate interface passage between said stator and said rotor.
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Abstract
A method for monitoring a bearing is disclosed. The method involves positioning a non-contacting bearing isolator adjacent a bearing on a piece of rotating equipment so that at least one operating parameter of said bearing is communicated to said bearing isolator; and, positioning an energy detector within range of said bearing isolator so that said energy detector is able to monitor said at least one operating parameter of said bearing by detecting at least one operating parameter of said bearing isolator.
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Citations
20 Claims
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1. A non-contacting bearing isolator for a conveyor roller comprising:
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a. a stator secured to a shaft; and b. a rotor secured to said conveyor roller, wherein the stator has a stator exterior end face axially distal from a primary bearing secured to said shaft, wherein said stator and said rotor cooperate to form a non-contacting labyrinth seal between said primary bearing and an atmosphere axially distal said stator exterior end face, said labyrinth seal comprising; i. an exterior interface passage; ii. an intermediate annular chamber; iii. an interior interface passage; and iv. an immediate interface passage between said stator and said rotor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A conveyor roller assembly comprising:
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a. a fixed shaft; b. a conveyor roller mounted for rotation about said shaft, wherein said conveyor roller comprises; i. a conveyor roller shell; and
,ii. a bearing housing at either end; c. a primary bearing having an inner race secured to said fixed shaft and an outer race secured to said bearing housing; d. a rotor sealingly secured to said conveyor roller; and
,e. a stator sealingly secured to said fixed shaft, wherein said rotor and said stator cooperate to form a non-contacting exterior interface passage, a non-contacting intermediate annular chamber, a non-contacting interior interface passage, and a non-contacting immediate interface passage. - View Dependent Claims (18)
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19. A conveyor roller assembly comprising:
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a. a fixed shaft; b. a conveyor roller mounted for rotation about said shaft, wherein said conveyor roller comprises; i. a conveyor roller shell; and ii. a bearing housing at either end; c. a primary bearing having an inner race secured to said shaft and an outer race secured to said bearing housing; and
,d. an annular improved bearing isolator having a stator secured to said shaft and a rotor secured to said conveyor roller, wherein said stator includes a stator exterior end face axially distal from said primary bearing, wherein said stator and said rotor cooperate to form a non-contacting labyrinth seal between the primary bearing and an atmosphere axially distal said stator exterior end face, said labyrinth seal comprising; i. at least one exterior interface passage; ii. at least one intermediate annular chamber; iii. at least one interior interface passage; and iv. at least one immediate interface passage.
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20. A non-contacting bearing isolator for a conveyor roller comprising:
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a. a stator surrounding a shaft and affixed to said shaft, said stator having a plurality of projections extending both axially and radially, said radial projections being greater than said axial projections; and
,b. a rotor surrounding said shaft and affixed to said conveyor roller, wherein said rotor is rotatable with said conveyor roller, wherein said rotor has a plurality of projections extending both radially and axially, wherein said plurality of projections in said rotor cooperate with said plurality of projections in said stator;
wherein said rotor and said stator are abutted and intermeshed with each other; and
wherein at least one of said radial projections of said stator extend in a direction radially distal of said shaft further than any of said radial projections of said rotor.
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Specification