Motor rotating shaft fault monitoring system

Abstract

The invention provides a motor rotating shaft fault monitoring system. A vibration sensor, a rotating speed sensor, a temperature sensor, and an image collection device are used for monitoring a faultof a motor rotating shaft, and a detection result is displayed through a display device, and meanwhile, the detection result is transmitted to a user side through a communication device, and the communication device gives an alarm for the fault; a diagnosis device comprises a testing bracket, a first testing arm, a second testing arm, the image collection device, the vibration sensor, the rotating speed sensor, an image processing device, a central processing unit, a display device, an alarm device, the communication device, the user side, the temperature sensor, a first signal processing circuit, a second signal processing circuit and a third signal processing circuit; when the vibration signal exceeds a preset threshold, the image collection device is triggered to collect the image information at a connecting part of the rotating shaft and a bearing, thereby judging whether the loosen occurs between the rotating shaft and the bearing, and the detection accuracy is improved.

Description

technical field [0001] The invention relates to the field of rotating machinery testing, in particular to a motor rotating shaft fault monitoring system. Background technique [0002] The rotating shaft is an important rotating part of the motor. With the operation of the motor, the rotating shaft will vibrate. The detection of its vibration is a reliable means of detecting the running state of the motor. The vibration signal of the rotating shaft contains the information for judging various running states Information, when the vibration of the rotating shaft is too large, it is easy to cause the gap between the rotating shaft and the bearing to become larger, resulting in loosening. At present, for the detection device of the vibration signal of the rotating shaft, only the vibration signal is collected, and it is impossible to accurately judge whether there is looseness between the rotating shaft and the bearing, or only by setting a threshold value, if the vibration signa...

AI Technical Summary

Problems solved by technology

[0002] The rotating shaft is an important rotating part of the motor. With the operation of the motor, the rotating shaft will vibrate. The detection of its vibration is a reliable means of detecting the running state of the motor. The vibration signal of the rotating shaft contains the information for judging various running states Information, when the vibration of the rotating shaft is too large, it is easy to cause the gap between the rotating shaft and the bearing to become larger, resulting in loosening

At present, for the detection device of the vibration signal of the rotating shaft, only the vibration signal is collected, and it is impossible to accurately judge whether there is looseness between the rotating shaft and the bearing, or only by setting a threshold value, if the vibration signal is greater than the threshold value, it is judged that the rotating shaft and the bearing are loose. Due to the different materials of the rotating shaft and bearings and the different operating environments of the motor, this type of detection device cannot accurately detect the loosening between the rotating shaft and the bearing of the motor

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