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What are the ways to reduce the noise of micro-motor cogging?

The gear reducer, which is generally used to lower the output speed and boost torque, is a crucial transmission component in the small reduction motor. When meshing, the gear of the tiny reduction motor will make some noise. The noise level is relatively high for microelectronic products, which is significant. How therefore may the gear noise of the tiny gear motor be reduced? The Vshida micromotor that follows briefly covers a number of techniques for geared motor noise reduction.


GB12-N20-(4)

1. Increase the gear reducer's coincidence and displacement. The smoother and quieter the gear transmission, the higher the coincidence. The strength and noise of the gears meshing are directly affected by the displacement coefficient;

2. The gear reducer's tooth surface roughness: the rougher the tooth surface, the higher the friction torque produced by the gear transmission, the higher the heat produced by the friction, the more severely the gear will wear, and the bigger the deformation. It is crucial to maximize the roughness of the gear reducer's tooth surface because the noise is also increased;

GB25-370SH-(4)

3. Gear accuracy grade of gear reducer: The gear's installation and meshing errors have a significant impact on noise. The noise generated by a strong load is undoubtedly impacted by gear deformation. The impacts of noise are enormous. The noise produced by meshing can be successfully reduced by the gear manufacture accuracy, processing method, heat treatment method, suitable structure, and gear assembly accuracy.


4. Gear reducer tooth profile modification: By altering the gear's tooth profile and tooth direction, it is possible to lessen the noise that is made when the gears mesh. Additionally, the modified tooth end makes it easier for an oil film to form. However, there will be a fair amount of danger associated with gear modification, such as operating faults resulting in higher noise;

GBP28-385SH-(2)

5. The use of thin and high teeth: The use of high-coefficient gears in the gear structure of the miniature reduction motor can increase the degree of coincidence, and the narrowing of the gear root unquestionably increases the flexibility of the reducer gear, which can absorb the vibration of the gear more effectively;

YGA36BL3657(4)

6. The reducer gear's module and tooth count: The stiffness of the reducer gear will grow as the module does. Use a large module for high-power transmission gears, and a small module and a number of teeth for low-power transmission. The number of teeth is both decreased and raised, which can improve the gears' coherence and significantly lessen noise;

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