Self-powered bearing health monitoring apparatus

A technology of health monitoring and self-supply, which is applied in the direction of mechanical bearing testing, electromechanical devices, circuit devices, etc., can solve the problems of difficult to meet the energy supply requirements of sensors, low efficiency of energy capture, pollution of the environment, etc., to achieve energy capture efficiency improvement, Enhanced magnetic flux density and continuous energy supply

Active Publication Date: 2017-12-19
XI AN JIAOTONG UNIV
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  • Abstract
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  • Application Information

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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 tr

Method used

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  • Self-powered bearing health monitoring apparatus
  • Self-powered bearing health monitoring apparatus
  • Self-powered bearing health monitoring apparatus

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The embodiment of the present invention takes a single-row tapered roller bearing as an example. It should be clear that the present invention is not limited thereto, and also includes ball bearings, angular bearings, cylindrical roller bearings, single-row, double-row and multi-row bearings, etc.

[0026] refer to figure 1 and figure 2 , a self-powered bearing health monitoring device, including a bearing installed on a shaft 1, the bearing is composed of an inner ring 2, an outer ring 5, a roller 3, a cage 4 and a bearing end cover 11, the inner ring 2 and the shaft 1 Connected by interference fit, the inner ring 2 rotates with the shaft 1, and the outer ring 5 and the bearing end cover 11 are in a fixed state; the sensor and data processing transmitter 10, the circuit processing device 9 and the cage 4 are installed on the cage 4 A plural...

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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-...

Claims

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Application Information

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IPC IPC(8): H02K35/04H02J7/32H02J9/06G01M13/04G08C17/02
CPCG01M13/04G08C17/02H02J7/32H02J9/061H02J9/068H02K35/04
Inventor 曹军义张颖朱红宇林京
Owner XI AN JIAOTONG UNIV
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