How to deal with the noise of the motor bearing?
2023-08-08 09:09:45
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How to deal with the noise of the motor bearing?
Source: China Bearing Network Time: 2014-11-03
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1. Inherent noise ------ rolling track sound
2, according to the conditions of the use of noise ----- insist on the sound
3, improper use leads to -------1), scar sound (inner and outer ring; steel ball)
-------2), foreign matter sound 1, scar sound (Brinell indentation)
Scene: After the motor is installed; when noise is observed; noise characteristics are found: the sound of "咔啦啦......" is announced in succession: when the shaft is pressed into the shaft collar or the bearing chamber; the Brinell pressure is generated inside the bearing Trace countermeasures: select bearings bearing anti-indentation; improve the installation qualification rate; "NSK" anti-indentation depiction 2, scar sound (friction wear)
Scene: The noise characteristics were found when the motor was transported to the air-conditioning plant for noise observation: the sound of the sound of "咔啦......" was successively announced: because of the fluctuation of the oscillation during transportation; the fretting of the steel ball and the rolling between the bearing caused the sound response: Improve packaging and shipping methods; use anti-friction wear grease; to improve the pass rate.
3, foreign matter sound set: after the motor is installed; when the noise is checked, it is found that there are noise characteristics: the sound of the sound of the "啪哩啪哩..." is interrupted: the external foreign matter enters the internal countermeasures of the bearing: progress to install the production line, the rotor And the cleanliness of the bearing 4. Persistence of the sound set: After the motor is installed; when the noise is viewed, it is found to have noise characteristics: the sound of the sound of the "å½å“©å½å“©..." is repeated or intermittently: the adherence conflicts with the steel ball Noise countermeasures caused by the use of adhering grease
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