Current type fault diagnosis apparatus and method for micro-vibration motor

A technology of fault diagnosis instrument and vibration motor, which is applied in vibration testing, motor generator testing, components of electrical measuring instruments, etc., can solve problems such as low detection efficiency, unrounded commutator segments, and abnormal commutation.

Active Publication Date: 2019-08-23
SICHUAN AWA SEIMITSU ELECTRIC CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems existing in the existing micro-vibration motor nondestructive flaw detection technology such as low detection efficiency and difficulty in detecting the faults of micro-vibration motors with eccentric blocks, the purpose of the present invention is to provide a current-type fault diagnostic instrument for micro-vibration motors and Diagnosis method, while realizing accurate detection of v

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  • Current type fault diagnosis apparatus and method for micro-vibration motor
  • Current type fault diagnosis apparatus and method for micro-vibration motor
  • Current type fault diagnosis apparatus and method for micro-vibration motor

Examples

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Example Embodiment

[0051] Example 1 Current type fault diagnosis instrument for miniature vibration motor

[0052] The current-type fault diagnosis instrument for the miniature vibration motor provided in this embodiment has the structure as figure 1 and figure 2 As shown, it includes an installation mechanism 2 for installing and fixing the micro vibration motor 1 to be tested, a starting resistance R 1 3. Sampling resistor R 2 4. Data acquisition card 5, first power supply 6, Hall sensor H 7, second power supply 9 and computer 8. When the type of micro vibration motor to be tested is determined, adjust the first power supply voltage, the second power supply voltage, and the sampling resistor R 2 , Data acquisition card (including acquisition rate and number of sampling points), and remain unchanged. Users can also adjust these parameters to meet the needs of the micro-vibration motor under different conditions.

[0053] The sampling resistor R used in this embodiment 2 4 is a variable resistance ...

Example Embodiment

[0059] Example 2 Fault detection of micro vibration motor

[0060] This embodiment provides a method for diagnosing the fault of a micro vibration motor using the above-mentioned current-type fault diagnosis instrument, which includes the following steps:

[0061] (1) The current-type fault diagnosis device is used to obtain the voltage signal of the sampling resistor and the magnetic pole signal of the micro-vibration motor, and use the voltage signal of the sampling resistor as the voltage characteristic signal that characterizes the operation of the micro-vibration motor.

[0062] Place the micro-vibration motor 1 to be tested in the clamping slot of the stage, and it is compressed and fixed by the damping pressing mechanism. Connect the connection method in the component installation embodiment 1; then turn on the first power source 6 and the second power source 9 to start the micro vibration motor. When the data acquisition card 5 collects the start resistance R 1 When the vol...

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Abstract

The invention discloses a current type fault diagnosis apparatus and method for a micro-vibration motor. A current change condition in a power-on circuit of the micro-vibration motor is reflected by an acquired voltage signal of a sampling resistor connected to the power-on circuit of the micro-vibration motor in series, the interference of physical measurement is avoided, relevant characteristicvalues are extracted from the acquired voltage signal, a fault of the micro-vibration motor is pre-diagnosed, and then the fault of the micro-vibration motor is finally diagnosed according to Booleanlogic, so that the fault type of the micro-vibration motor can be accurately recognized, and furthermore, the whole process adopts automatic identification operation, a worker does not need to excessively participate in the whole generation process, the detection efficiency is greatly improved, and the labor production cost is reduced. According to the apparatus and the method, judgment can be carried out for 100 times within 0.7 second, so that the fault diagnosis accuracy is ensured, and meanwhile, the fault diagnosis efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing, and relates to a current-type fault diagnosis instrument and a diagnosis method for a miniature vibration motor based on wavelet packet reconstruction. Background technique [0002] With the rapid development of interactive electronic devices, more and more attention will be paid to whether the devices can stably transmit effective signals in operation. In particular, the micro-vibration motor, which is the basis for electronic equipment to transmit vibration signals, is directly related to the user's experience and even safety. At the same time, due to the huge production quantity and demand of interactive electronic equipment, it is very important to conduct non-destructive testing on micro vibration motors to ensure the tactile and auditory comfort and safety of electronic equipment in use by users. The production environment at home and abroad began to carry out non-destructi...

Claims

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Application Information

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IPC IPC(8): G01R31/34G01R1/04G01M7/02
CPCG01M7/02G01M7/027G01R1/0408G01R31/34
Inventor 方夏朱群馨黄思思王玫刘剑歌冯涛邹子丹
Owner SICHUAN AWA SEIMITSU ELECTRIC CO LTD
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