Self-powered bearing health monitoring apparatus

Abstract

Disclosed is a self-powered bearing health monitoring apparatus. The self-powered bearing health monitoring apparatus comprises a bearing mounted on a shaft; a sensor and data processing transmitting apparatus, a circuit processing apparatus and a plurality of coils are mounted on a bearing retaining frame; magnets are mounted on a bearing end cover; the coils and the magnets are arranged oppositely; the signal output end of the sensor and data processing transmitting apparatus and the input end of an external wireless receiving apparatus are in wireless transmission; the power supply input end of the sensor and data processing transmitting apparatus is connected with the power supply output ends of the coils through the circuit processing apparatus; the coils and the magnets are matched to form a self-powered apparatus; an alternating current voltage generated by the self-powered apparatus is subjected to rectifying and voltage-stabilizing treatment through the circuit processing apparatus to be converted into electric energy for directly supplying power for the sensor and data processing transmitting apparatus; the sensor and data processing transmitting apparatus performs real-time state monitoring on the bearing in the working process and transmits data to the outside wirelessly; and the external wireless receiving apparatus performs real-time monitoring and displaying of the bearing state and carries out fault pre-judgment.

Description

technical field [0001] The invention relates to the technical field of bearing health monitoring devices, in particular to a self-powered bearing health monitoring device. Background technique [0002] Rolling bearings are important parts to ensure the normal operation of rotating machinery, ensuring the working position and rotation accuracy of the shaft, so they have very strict requirements. Rolling bearings are often one of the most vulnerable parts in mechanisms, and most of the failures of rotating machinery are caused by rolling bearings. The failure forms of rolling bearings mainly include fatigue spalling, wear, plastic deformation, corrosion, burn, electric corrosion, cage damage, etc., which will cause great hidden dangers to the normal operation of the device. Studies have shown that rolling bearings are a gradual change process from normal state to failure and damage, and this change can be reflected in the dynamic signals of rolling bearings. Through the real-...

AI Technical Summary

Problems solved by technology

Nowadays, it is very inconvenient to use an external power supply for power supply, because the battery life is limited. When the battery power is exhausted, the battery has to be replaced again, which is time-consuming and laborious, and also pollutes the environment after being discarded.

Although it has become a current research trend to use the mechanical energy generated by the bearing during operation to supply energy to the bearing health monitoring system, the efficiency of the existing devices in capturing energy from the environment is low, and it is difficult to meet the normal operation of the sensor and the energy supply for signal transmission. need

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