Fault diagnosing and health monitoring device on basis of piezoelectric vibration energy collection

Abstract

The invention provides a fault diagnosing and health monitoring device on the basis of piezoelectric vibration energy collection. The fault diagnosing and health monitoring device comprises a box, a frequency acquisition apparatus, a circuit switching portion and an indicator lamp array. The frequency acquisition apparatus and the circuit switching portion are arranged in the box, the indicator lamp array is arranged on a surface of the box, the frequency acquisition apparatus comprises a cantilever beam fixing plate, a cantilever beam array, cantilever beam balancing weights and PVDF (polyvinylidene fluoride) piezoelectric materials, the cantilever beam fixing plate is arranged on the inner surface of the box, the cantilever beam array is arranged on the cantilever beam fixing plate, thecorresponding cantilever beam balancing weight is arranged at a free end of each cantilever beam of the cantilever beam array, the corresponding PVDF piezoelectric materials are arranged on the uppersurface of each cantilever beam of the cantilever beam array, PVDF piezoelectric material electrodes are further connected with the upper surfaces and the lower surfaces of the PVDF piezoelectric materials, the circuit switching portion is arranged in the inner middle of the box and is connected with the PVDF piezoelectric material electrodes and corresponding indicator lamps, and the number of the indicator lamps corresponds to that of the cantilever beams. The fault diagnosing and health monitoring device has the advantages of simple structure, small volume, low energy consumption and manufacturing cost, zero pollution and low service life.

Description

technical field [0001] The invention relates to a fault diagnosis and health monitoring device based on piezoelectric vibration energy collection, belonging to the field of health monitoring of equipment in industrial production. Background technique [0002] In industrial production, the equipment needs to run smoothly. When some key components of the equipment are loose, or some components are damaged, the equipment may vibrate violently or even disintegrate. When the equipment fails, the vibration frequency will change and affect the machining accuracy. Even life-threatening to production workers. When equipment is abnormal, if it can be found as soon as possible, losses can be reduced. Therefore, the health monitoring of equipment is particularly important. [0003] Sensors are mostly used in alarms. The application of sensors can convert the information to be measured into electrical signals or other forms of signals that can be measured to monitor the normal operatio...

AI Technical Summary

Problems solved by technology

[0002] In industrial production, the equipment needs to run smoothly. When some key parts of the equipment are loose or some components are damaged, the equipment may vibrate violently or even disintegrate. When the equipment fails, the vibration frequency will change and affect the machining accuracy. It even poses a threat to the life of production workers

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