Como fazer a corrente funcionar de forma mais silenciosa?

How to make the chain run more quietly?

How to make the chain run quieter

Chain and sprocket drives are a traditional power/motion transmission technique. In general, these drives tend to perform well in harsh environments and have high resistance to wear and fatigue. One of the persistent disadvantages is the noise generated by the chain and sprocket systems.

Why does a chain make noise

There are some common causes of noise in chain systems. The main cause is the chain engaging the sprocket; that is, the impact force of the chain links meshing with the sprocket teeth . Especially if both the chain and the sprocket are metallic, they will tend to generate more noise.

How to make transmission chains silent

There are several ways to reduce noise in chain and sprocket drives. For one thing, consider the chain material. Metal-to-metal interaction produces more noise, unlike plastic-to-plastic or even metal-to-plastic interaction.

Therefore, the use of plastic can significantly reduce chain noise. In fact, some recommendations include using plastic rollers along the chain as a way to dampen noise. Other manufacturers use different techniques, such as spring rollers, to absorb some of the energy from chain and sprocket contact and thus reduce noise. In these cases, the claim is that the use of a so-called low-noise roller chain can reduce noise by up to 10 db, which represents a reduction of around 50% in noise levels.

Several other techniques can also help reduce noise levels. For example, the speed of the drive can make a difference. In general, the slower the chain moves, the quieter it will be. The speed increases and the noise also increases. Another thing to consider is using a smaller current if possible. This reduces the weight of the chain and the noise generated by chain-sprocket interaction.

Another simple but sometimes overlooked factor is ensuring that the tolerances between the chain and sprocket are tight. The loose chain produces more noise when it hits the sprocket and a tighter fit reduces the noise.

In the end, don't forget the lubrication . A properly lubricated chain dampens the chain-sprocket interaction.

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