The impact crusher uses the principle of "stone hitting iron" and is suitable for the crushing of different material specifications. It not only has a large crushing ratio, but also has low unit power consumption. It fully meets the process requirements of "more break and less grinding". It has a wide range of applications in mine production. application. However, the working environment of counterattack is relatively harsh, and it will inevitably fail after long-term operation. Once the failure occurs, it will directly delay the construction period of the stone yard and cause great losses. However, if you are aware of the common faults and solutions for counter-attack, you can quickly find the cause and solution of the fault, quickly restore normal production and reduce losses. Today, Lizhi Machinery will take you to understand the top ten common faults and solutions of impact crushers, and hope it will be useful to everyone.

1. Counterattack and break the starting device without turning

Check whether the material in front of the feeder falls into the crushing cavity due to vibration during shutdown, causing the material to jam the rotor. The material in the crushing cavity needs to be cleaned up, and it can be solved by restarting the machine.

2. Counterattack and break the bearing heat

The lubrication of the bearing should be checked for good condition. Under normal circumstances, the lubricating oil should be filled with 50% of the bearing housing volume; another situation is that the lubricating oil is deteriorated and thick, and the bearing needs to be cleaned and replaced with new lubricating oil.

3. Abnormal equipment vibration

The possible causes and solutions are:

1. The feed size may be too large;

2. The wear parts are unevenly worn, and the impact hammer needs to be replaced;

3. The rotor is unbalanced and needs to be adjusted and checked for balance;

4. Check whether the equipment anchor bolts are fastened and strengthened appropriately.

Four, counterattack broken belt flip

The main reason is that the belt is damaged and the V-belt needs to be replaced. Pay attention to ensuring the quality of the belt; or because of the improper assembly of the pulley, the driving and driven pulleys need to be adjusted on the same plane.

Five, the machine bearing is bent or broken

The main reasons are long-term overload operation of the main engine, improper heat treatment of the bearing, and excessive hardness of the crushed material. When handling, it is necessary to replace the new bearing, and pay attention to timely maintenance and repair in the future operation process.

Sixth, counterattack breaks a stuffy car

The counterattack suddenly stops during operation. There are many reasons for this failure, such as blockage of the discharge port, belt slippage, low voltage, and bearing damage. Deal with these problems one by one, such as clearing the blockage of the discharge port, tightening the belt, increasing the voltage and ensuring the stability of the voltage, replacing the bearing, etc.

Seven, the spring parts of the equipment are broken

The main reason for this failure was that the spring was not relaxed when the discharge opening was adjusted. Therefore, the broken spring must be replaced during handling.

8. Abnormal noise inside the crushing cavity

Stop the machine immediately, check whether there are metal impurities or broken parts in the crushing cavity, and clean the crusher cavity; check the tightness of the inner liner and the gap between the hammer and the liner. If the gap is too small, it will also cause abnormal noise. .

Nine, there is gum smell during equipment operation

The main reason for this problem is that the belt slips, the friction and heat generated by the belt pulley give off a pungent rubber smell, or the rotor is stuck. It is necessary to check the rotor in the machine cavity and solve it in time.

10. The discharge granularity is too large

It means that the impact crusher's plate hammer or impact liner is severely worn, causing the gap between the impact plate and the impact plate to be too large. Adjust the front and rear impact frame gaps, or replace the liner and blow plate; adjust the position of the impact frame so that both sides and the machine The gap between the frame linings is uniform; if the linings on the frame are severely worn, they should be replaced in time.