Abnormal wearing detection device for seal members and rotor device
AssigneeFanuc Corporation
InventorYamato Mishima
Life of this patent
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Abstract
An abnormal wearing detection device for seal members for detecting abnormal wearing of a seal member that slides in relation to a circumferential surface of a rotating member to seal the circumferential surface of the rotating member, includes: at least two measuring units among a load ratio measuring unit that measures a load ratio during rotation of the rotating member, a temperature measuring unit that measures the temperature of the seal member, and a gas concentration measuring unit that measures a concentration of a gas emitted from the seal member; and a determining unit that determines that abnormal wearing has occurred when it is detected that at least two measurement values measured by the at least two measuring units fail below a first reference value.
Claims2
An abnormal wearing detection device for oil seals, for detecting abnormal wearing of an oil seal that slides in relation to a circumferential surface of a rotating member to seal the circumferential surface of the rotating member, comprising:
- a load ratio measuring unit that measures a load ratio during rotation of the rotating member;
- a temperature measuring unit that measures the temperature of the oil seal;
- a gas concentration measuring unit that measures a concentration of a gas emitted from the oil seal;
- and
- a determining unit that determines that abnormal wearing has occurred when it is detected that at least two measurement values of measurement values measured by the load ratio measuring unit, the temperature measuring unit, and the gas concentration measuring unit fall below a first reference value after reaching a second reference value, as a result of comparing each of the measurement values with the first reference value higher than a normal value and the second reference value higher than the first reference value.
Dependencies are inferred from the claim text.