Bearing detecting device and method

Abstract

The invention discloses a bearing detecting device and method. The detecting device comprises a micro vibration sensor and a processor embedded into the same part of a bearing, and the processor is connected with the micro vibration sensor; and the detecting device comprises transmitting and receiving antennas, the transmitting antenna is embedded into the part where the micro vibration sensor is positioned, and the receiving antenna is arranged beyond the bearing. The detecting method comprises that the micro vibration sensor embedded in the bearing is used to detect an acceleration signal of the bearing; Fourier transform is carried out on the acceleration signal to obtain a characteristic frequency spectrum of the bearing; and the characteristic frequency of the bearing matches a known fault characteristic frequency of the bearing to obtain fault information of the bearing. According technical schemes of the invention, a sensor can be arranged close to the bearing as possible, and attenuation of a fault signal of the bearing is reduced.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a bearing detection device and method. Background technique [0002] At present, bearings are a common part in contemporary mechanical equipment. In order to avoid the sudden failure of the bearing during operation, it is usually necessary to monitor the early failure signal of the bearing. [0003] In the prior art, in order to monitor the above-mentioned early failure signals, sensors are usually installed on the bearing seat. This way of separating the bearing and the sensor will prolong the decay time of the early failure signal of the bearing, and because the early failure signal of the bearing It is a weak signal, and the prolongation of the decay time will easily cause the early failure signal of the bearing to be covered by the noise, so that the sensor cannot effectively collect the early failure signal of the bearing, and thus cannot give an early warning of the early...

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Problems solved by technology

[0003] In the prior art, in order to monitor the above-mentioned early failure signals, sensors are usually installed on the bearing seat. This way of separating the bearing and the sensor will prolong the decay time of the early failure signal of the bearing, and because the early failure signal of the bearin

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