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Tips for Decreasing the Noise of a DC Motor

In the operation of low-noise DC geared motors, noise levels can be maintained below 45dB. These motors, which consist of a drive motor (DC motor) and a reduction gear (gearbox), significantly enhance the noise performance of conventional DC motors.

To achieve noise reduction in DC motors, several technical strategies are employed. The construction includes a DC motor body with a back cover, two oil bearings, brushes, a rotor, a stator, and a reduction gearbox. The oil bearings are integrated within the back cover, with the brushes extending into the interior. This design minimizes noise generation and prevents the excessive friction characteristic of standard bearings. Optimizing the brush setting reduces friction with the commutator, thereby decreasing operational noise.

Picture the inside of a motor as a fancy mechanical stage show, where every part is like a dancer in a well-rehearsed routine. The way the brushes and the commutator in a DC motor rub against each other is like the gentle steps of a dancer, almost silent. The engineers at Sinbad Motor function as the directors of this stage, ensuring that all movements are executed with accuracy and synchronization.

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Strategies for reducing electric motor noise include:

● Mitigating abrasion between the carbon brush and the commutator: Emphasize the precision of the DC motor’s lathe machining. The optimal approach involves experimental refinement of technical parameters.

● Noise issues often stem from a rough carbon brush body and inadequate running-in treatment. Prolonged operation can result in commutator wear, overheating, and excessive noise. The recommended solution includes smoothing the brush body for enhanced lubrication, replacing the commutator, and regular application of lubricating oil to mitigate wear.

● To address noise emanating from DC motor bearings, replacement is advisable. Factors such as excessive compression, incorrect force application, tight fits, or unbalanced radial forces can contribute to bearing damage.

Sinbad  is committed to crafting motor equipment solutions that are outstanding in performance, efficiency, and reliability. Our high-torque DC motors are crucial in several high-end industries, such as industrial production, medical devices, the automotive industry, aerospace, and precision equipment. Our product range includes a variety of micro drive systems, from precision brushed motors to brushed DC motors and micro gear motors.

Editor : Carina


Post time: May-09-2024
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