Motor concentricity comparison method, system and device and computer readable storage medium

A storage medium and comparison system technology, applied in the field of motor measurement, can solve problems such as the inability to quickly compare the concentricity of the AC motor stator and rotor, and achieve the effects of small external influence factors, improved measurement accuracy, and accurate measurement results

Active Publication Date: 2020-06-12
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a comparison method, system, device, and computer-readable storage medium for motor concentricit

Method used

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  • Motor concentricity comparison method, system and device and computer readable storage medium
  • Motor concentricity comparison method, system and device and computer readable storage medium
  • Motor concentricity comparison method, system and device and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, a comparison method of motor concentricity, including steps:

[0037] S1, number all motors: 1, 2, 3...;

[0038] S2, respectively install motors 1, 2, 3... on the used model, conduct a single-outlet wind noise test, and calculate the rotation frequency according to the actual rotation speed of the motor, and the rotation frequency = the actual rotation speed of the motor / 60;

[0039] S3, through the noise tester to collect the noise of the motors 1, 2, 3... at different rotation frequencies;

[0040] S4, compare the noise levels of motors 1, 2, 3... at special rotation frequency points, and sort them. The motor with the lowest noise value is the motor with the best concentricity of the stator and rotor.

[0041] Further, the special frequency point is the point at which the stator and rotor of the motor generate noise peaks. At the special frequency point, few other components of the motor produce peak effects, which greatly avoids noise ge...

Embodiment 2

[0046] A method for comparing motor concentricity, comprising steps:

[0047] S1, number all motors: 1, 2, 3...;

[0048] S2, respectively install motors 1, 2, 3... on the used model, conduct a single-outlet wind noise test, and calculate the rotation frequency according to the actual rotation speed of the motor, and the rotation frequency = the actual rotation speed of the motor / 60;

[0049] S3, through the noise tester to collect the noise of the motors 1, 2, 3... at different rotation frequencies;

[0050] S4, compare the noise levels of motors 1, 2, 3... at two special rotation frequency points, and sort them. The numbered motor whose noise reaches the minimum value at the same time is the motor with the best concentricity of the stator and rotor.

[0051] Further, the special frequency point is the point at which the stator and rotor of the motor generate noise peaks. At the special frequency point, few other components of the motor produce peak effects, which greatly avoi...

Embodiment 3

[0057] Such as figure 2 As shown, a comparison system of motor concentricity, including:

[0058] A noise analysis module, the noise analysis module can record the noise of the motors 1, 2, 3... at different rotation frequencies, and transmit the recorded data to the main controller.

[0059] A main controller, the main controller can fit the noise data of the motors 1, 2, 3... in the noise analysis module at different rotational frequencies.

[0060] A graphic display module, the graphic display module can display the fitting result of the main controller, and can intuitively compare the magnitude of the noise generated by the motors 1, 2, 3... under different rotational frequencies.

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Abstract

The invention provides a motor concentricity comparison method, system and device and a computer readable storage medium. The method comprises the following steps: S1, numbering all motors: 1, 2, 3...; S2, installing the motor 1, the motor 2, the motor 3 and the like on a using machine type, carrying out single-air-outlet noise testing, andcalculating the rotating frequency according to the actualrotating speed of the motor, wherein the rotating frequency is equal to the actual rotating speed of the motor/60; S3, collecting noise under different rotation frequencies when the motor 1, 2, 3...work through a noise tester; S4, comparing the noise of the motors 1, 2, 3... at a special rotating frequency point andcarrying out ranking, wherein the motor with the smallest noise value is the motor with the best concentricityofthe stator and the rotor; the method has the advantages that the noise of the stator and the rotor of the motor at a special rotating frequency point is used as a measurement standard, and the concentricity of the stator and the rotor of different motors can be rapidly, simply and conveniently compared.

Description

technical field [0001] The invention relates to the technical field of motor measurement, in particular to a method, system, device and computer-readable storage medium for comparing motor concentricity. Background technique [0002] Motor concentricity finding is a basic method of equipment installation, which is widely used in equipment installation. In order to avoid large vibrations when the equipment rotates at high speed, damage the bearings of the motor and reducer, and improve the service life of the equipment, it is required that large and high-speed equipment must ensure high coaxiality during installation. Therefore, the concentricity of the motor is correct. The equipment installation project is a very important work with high precision requirements. Before the equipment trial operation, it must be strictly tested to ensure the installation quality. [0003] In order to save costs, the existing air-conditioning external units often use AC motors to drive the fan...

Claims

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Application Information

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IPC IPC(8): G01B17/00
CPCG01B17/00
Inventor 王天垚张伟捷王培鲁旻
Owner NINGBO AUX ELECTRIC
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