Common Causes of Strong Vibration in Crushers
Crushers are heavy-duty equipment used to reduce the size of mined materials. Vibrations in crushers are often caused by unbalanced rotor loads, uneven material feed rates, and rotor misalignment. Even though vibrational issues can indicate a malfunction or impending failure, most crushers have some form of protection system to prevent further damage. This article will discuss the common causes of strong vibration in crushers and how to identify and address these problems.
Unbalanced Rotor Loads
Unbalanced rotor loads are one of the most common causes of strong vibrations in crushers. This type of vibration occurs when the rotor load is too high on one side of the crusher, causing the motor to become unbalanced and shake. When this happens, the vibration can cause significant wear and tear on the bearings and internals of the crusher. To prevent unbalanced rotor loads, check the balance of the rotor regularly. If the rotor is found to be unbalanced, corrective action must be taken to balance it before it can be used again.
Uneven Material Feed Rates
Another common cause of strong vibrations in crushers is the uneven rate of material feed. Crushers work best when they are receiving a steady, even, and consistent feed rate. When material feed is not consistent, it can cause the crusher to become overloaded on one side. This can cause the rotor to become unbalanced, leading to strong vibrations. To prevent this from happening, check the feeder system regularly to ensure that the material feed is consistent and even.
Rotor Misalignment
Rotor misalignment is another frequent cause of strong vibrations in crushers. This type of vibration occurs when the rotor is misaligned with the crushing chamber, resulting in the rotor and surrounding components being stressed beyond their limits.
Corrective measures must be taken to ensure that the rotor is correctly aligned with the chamber. A misaligned rotor can not only cause vibrations, but can also reduce the efficiency of the crusher and cause premature failure of other components.
Wear and Tear
Wear and tear on the internals of a crusher can also be a cause of strong vibrations. When components become worn, they can no longer perform at an optimal level and can cause the crusher to vibrate. To prevent excessive wear and tear, the crusher should be checked regularly for signs of wear and the worn components should be replaced as soon as possible.
Conclusion
Strong vibrations in crushers are usually caused by unbalanced rotor loads, uneven material feed rates, and rotor misalignment. To prevent and reduce vibrations, it is important to check the crusher regularly for signs of wear and tear and to make sure that the rotor is correctly balanced and aligned. By ensuring that the crusher is in good condition and properly maintained, it will operate at peak efficiency and minimize the risk of strong vibrations.
