Abnormality diagnosis device

A fault diagnosis device and fault technology, applied in the direction of measuring devices, bearings, testing of machine/structural components, etc., can solve problems such as wasting costs, missing defects, and increasing device maintenance costs
CN1906473BInactive Publication Date: 2011-09-28NSK LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NSK LTD
Publication Date
2011-09-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

An abnormality diagnosis device used for a machine apparatus having a part rotating and sliding relative to a stationary member is provided with a detection section (31) and a signal processing section (81). The detection section (31) is fixed to the part rotating or sliding or to the stationary member and has a vibration sensor (32) and a temperature sensor (33). The signal processing section (81) determines the condition of the part based on a signal detected and outputted by the detection section (31). The signal processing section (81) determines whether there is an abnormality in the part, or whether there is an abnormality in the part and the degree of damage of the part.
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Description

technical field

[0001] The present invention relates to a fault diagnosis device and a fault diagnosis method for rotating or sliding parts of machine equipment such as shafts or gearboxes of railway vehicles or reduction gears of wind power generators. Specifically, the present invention relates to a fault diagnosis device and a fault diagnosis method for specifying the presence or absence of a fault or a symptom of a fault of a component, or a faulty part thereof. Background technique

[0002] Traditionally, in rotating parts of railway vehicles, wind generators, etc., bearings or other rotating parts are regularly inspected for damage, wear, etc. after a constant period of use. Periodic inspections are carried out by dismantling the machine equipment integrated with the rotating parts, and the damage or wear occurring at the rotating parts is found through the optical observation inspection by the person in charge. In addition, as major defects found through inspection, ...

Claims

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