Intelligent motor capable of realizing self monitoring and self maintenance

Abstract

The invention discloses an intelligent motor capable of realizing online self monitoring and self maintenance. The intelligent motor comprises a motor body, wherein the motor body comprises a rotationshaft, a bearing, an outer bearing end cover, an inner bearing end cover and a motor end cover, the intelligent motor further comprises a self monitoring system, an automatic oil injection device anda self power supply mechanism, the self monitoring system comprises a temperature sensor and a vibration sensor, the automatic oil injection device comprises an oil injection motor, and the self power supply mechanism comprises a magnet fixing disc and a coil winding. The intelligent motor is advantaged in that through cleverly constructing the electromagnetic power generation structure, self radial rotation power of the rotation shaft of the intelligent motor is utilized for power generation, self power supply for the self monitoring system and the automatic oil injection device is performed, the self monitoring system and the automatic oil injection device are made to continue to work online in real time, online self monitoring and regular self maintenance are achieved, in particular, faults of the motor are detected, the faults can be eliminated and the fault alarm can be performed in the first time, and serious consequences of motor failure can be reduced to the maximum degree.

Description

technical field [0001] The invention relates to an intelligent motor capable of realizing online self-monitoring and self-maintenance, and belongs to the technical field of motor maintenance. Background technique [0002] With the continuous development of power electronics technology and automation control technology, motors have been widely used in industrial production. Because the bearing plays the role of bearing load and transmitting load in the motor, whether its operating state is normal will directly affect the performance of the entire motor. Bearing failure will cause damage to the motor winding and shaft, resulting in burnout and damage to the equipment. It will cause motor performance degradation or unexpected shutdown, and unexpected shutdown may cause immeasurable losses to industrial production or lead to safety accidents. Therefore, it will be of great significance to realize online real-time monitoring of bearing operating status. [0003] However, existin...

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Problems solved by technology

[0004] Although in the prior art, there is an online monitoring technology for bearing temperature or vibration state, such as the Chinese utility model patent with application number CN201220323453.4, which proposes an online monitoring and early warning system for bearing temperature, and the application number is CN201420414749.X The online monitoring and early warning system of motor vibration is proposed in the Chinese utility model patent, but it is easy to cause wrong fault judgment based on temperature or vibration information alone, which will cause unnecessary burden on the maintenance work of enterprises

[0005] In addition, in order to avoid serious consequences such as motor damage and unexpected production shutdown caused by bearing failure, industry standards require regular (the standard stipulates that every 1500-2000 hours of operation) to lubricate and maintain the bearings, and replace the bearings regularly through manual or automatic oilers Or adding lubricating oil / liquid lubricant / grease, because manual maintenance requires shutdown operations, it will not only have an adverse effect on the production of the enterprise, but also the manual maintenance method is random and it is difficult to achieve regular maintenance; especially, in some flammable and On-site filling of lubricating oil / liquid lubricants in explosive petrochemical sites is also prone to safety accidents; although the existing automatic lubricators can solve the defects of manual maintenance and can achieve regular maintenance, they cannot be used in motors. In the event of failure symptoms (such as: high temperature rise, abnormal vibration), timely oil injection maintenance and troubleshooting are implemented, and manual corresponding processing is still required, so that there are still risks such as motor damage and unexpected production shutdown.

[0006] The key point is that both the existing monitoring system and the automatic oiler need to be equipped with an additional power supply, either an external power supply or a battery. In order to simplify the trouble of wiring and improve the convenience of using the motor, it is usually powered by a battery. As a result, frequent shutdowns are required to manually replace the battery, which still poses potential risks to the safe production of the enterprise

[0007] In short, there is no one in the prior art that can provide self-power supply for the motor operation status monitoring system and the oil injection device, can realize the synchronous work of the motor operation status monitoring system and the oil injection device and the motor, can realize online self-monitoring and self-maintenance, can Intelligent motors that realize timely oiling maintenance and troubleshooting when the motor has failure symptoms (such as: excessive temperature rise, abnormal vibration), so that the existing technology cannot well meet the needs of smart manufacturing and smart factories

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