Causas y soluciones del ruido de la correa de distribución

¿Qué causa el ruido de la correa de distribución y cómo reducirlo? Hay 4
causas comunes del ruido de la correa. No son en absoluto las únicas causas de ruido, pero
son un buen punto de partida.

Lo son:

• Impacto de los dientes de la correa en la polea
• Desplazamiento del aire por los dientes de la polea
• Fricción entre la correa y la polea
• Frecuencias de resonancia

Ruido de impacto

You’ll find impact noise and friction noise are more common at lower belt speeds whereas air volume displacement is common at higher RPMs.

Problema

El ruido de impacto se produce cuando el diente de la correa engrana con la polea.

Solución

1. To solve this problem, you can minimize the polygonal effect with continuous tooth engagement using belts such as ARC Power.
2. Reduce the belt width or used a lower tooth.
3. Switching to a belt such as AT10move-series which has a lower tooth face and a friction reducing coating will reduce noise.

Ruido de fricción

Friction noise is not only a nuisance, but it is damaging to the belt over time.

Problema

Si hay un diferencial de engranaje entre la correa y la polea, obtendrá ruidos de fricción.

Solución

1. When you use BRECOflex timing belts and pulleys together, we guarantee perfect meshing.  So as long as you are using the correct belt with the correct pulley, timing belt noise from friction should not be an issue.
2. For friction noises at lower RPMs, we recommend that you minimize the coefficient of friction by using a nylon covering on the tooth side, which we refer to as a PAZ. You can also opt for a dry lube or silicone grease which can be very effective.
3. Another solution for friction noise is to choose ARC Power also known as BATK timing belts. The dynamics of the belt reduces friction and the curved technology vents air toward the belt edges. Furthermore, this belt eliminates flange friction because it is self-tracking.

Desplazamiento del volumen de aire

Air volume displacement has a distinct sound and if often described as sounding like air escaping from a balloon.

Problema

El desplazamiento del volumen de aire se produce cuando hay un espacio entre la correa y la polea. Este tipo de ruido de la correa de distribución aumentará con la velocidad de la correa.

Solución

1. You can maximize air permeability which is especially helpful with high-speed drives. Ways to achieve air permeability is by using multiple smaller belts or by cutting air grooves on the pulley.

Resonancia

Problema

La resonancia se produce cuando hay vibraciones superpuestas en el sistema. La resonancia depende de la anchura de la correa.

Solución

1. You can change your driving RMP and try to change variables to quite the drive. You can also opt for a belt such as BATK to reduce polygonal effect and belt oscillation.

Para ver un ejemplo de un problema de ruido de la correa y su solución, vea el vídeo.

When dealing with issues of noise, examine each of the above variables as a possible cause. It is important to note that noise could be indicative of a bigger issue that could cause damage to your belt, pulley or drive over time.  If you need assistance in determining the cause and solution for our belt noise, please contact a BRECOflex applications engineer.