Fault rolling bearing sample processing device based on shaft current phenomenon

Abstract

The invention discloses a fault rolling bearing sample processing device based on a shaft current phenomenon. The fault rolling bearing sample processing device based on the shaft current phenomenon is mainly formed by a motor, a bearing to be processed, a carbon brush, a fixture shaft, an insulation coupler I, a power supply, a bearing seat and the like. According to the processing device, with the help of the motor, the insulation coupler I drives the fixture shaft and a bearing and an aluminum disk on the fixture shaft to rotate; and the external power supply applies a current onto the aluminum disk through the carbon brush, the current flows through the bearing to be processed through the fixture shaft and is forced to flow to the bearing seat from the fixture shaft through the bearingto be processed so as to further return to a power supply negative electrode through a guide wire and form a loop since insulation couplers are arranged on two sides of the fixture shaft, the insulation coupler II drives a dynamometer to run through the fixture shaft, and finally a rolling bearing fault sample is processed based on the shaft current phenomenon. The fault rolling bearing sample processing device based on the shaft current phenomenon provided by the invention has the advantages that the fault rolling bearing sample processing device can be suitable for carrying out fault processing on rolling bearings in various models, and is simple and compact in structure, convenient to operate, and reliable in performance.

Description

technical field [0001] The invention relates to a rolling bearing fault sample processing device, in particular to a fault rolling bearing sample processing device based on the axial current phenomenon. Background technique [0002] Faults of rolling bearings due to shaft current phenomena are common. Since rolling bearings are important components, more and more people are researching fault diagnosis methods for diagnosing the faults of rolling bearings due to shaft currents. However, the research on the shaft current fault diagnosis method of rolling bearings needs to obtain the rolling bearing fault samples as similar as possible to the faults generated in the real shaft current environment, and then carry out the research on the shaft current fault diagnosis of rolling bearings. Among the existing processing technologies for rolling bearing fault samples, the most common and destructive methods are EDM (electrical discharge) and wire cutting methods. However, the method...

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Problems solved by technology

[0003] In order to overcome the fact that the EMD (electric spark) and wire cutting methods described in the background technology cannot well restore the phenomenon that rolling bearings fail due to axial currents in reality, the present invention provides a faulty rolling bearing sample processing device based on the axial current phenomenon, The fault sample processing device uses the motor as the power source, and the rotation of the motor drives the inner ring of the bearing to be processed on the fixture shaft to rotate. The power supply applies current to the carbon brush through the wire, and then the current reaches the fixture shaft from the aluminum disc, and then The current flows through the inner ring, rolling element, and outer ring of the bearing to be processed, and finally returns to the negative pole of the power supply through the bearing seat to form a loop. The dynamometer at the left end of the processing device can realize the load on the motor and the detection of the output power, and finally complete The processing of rolling bearing shaft current failure samples solves the phenomenon that EMD (electric spark) and wire cutting methods cannot well restore the failure of rolling bearings caused by shaft current in real situations

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