The impact crusher, also known as counter-breaking, is a kind of crushing machine that uses impact energy to crush materials. It can process materials with a side length of 100-500 mm and a compressive strength of up to 350 MPa. It has the advantages of large crushing ratio and cubic particles after crushing. Widely used in building materials, ore crushing, railways, highways, energy, transportation, energy, cement, mining, chemical and other industries for medium and fine crushed materials, its discharge size can be adjusted, and the crushing specifications are diversified.
Any machine that is used for a long time or when it is used improperly will cause abnormal use. What are the common faults and solutions when using the impact crusher?
Check if the material in front of the feeder falls into the crushing chamber due to the vibration of the stop, causing the material to catch the rotor. It is necessary to clean the materials in the crushing chamber and restart it after starting up again.
The bearing should be inspected for good lubrication. Under normal conditions, the lubricant should be filled with 50% of the housing volume. In other cases, the lubricant is degraded and viscous. The bearing needs to be cleaned and replaced with a new one. If the bearing oil is too much or too little, the bearing will heat up. When refueling, it is necessary to check the oil level. If the bearing is damaged, the bearing should be replaced in time. The upper cover is too tight. It is advisable to adjust the bolt tightness.
If there is a vibration abnormality, the operator should stop immediately, we need to check the following.
(1) Check whether the inside contains metal impurities or parts are broken, and clean the crusher cavity;
(2) Check the tightening of the inner liner and the gap between the hammer and the liner. If the gap is too small, it will cause abnormal noise;
(3) It may be that the feed size is too large;
(4) Wear parts are unevenly worn, and the counter hammer needs to be replaced;
(5) The rotor is unbalanced and needs to be adjusted to verify the balance;
(6) Check that the equipment anchor bolts are tight and properly reinforced.
Mainly due to the broken belt, the need to replace the V-belt, pay attention to ensure the quality of the belt; or because of the improper assembly of the pulley, the active and driven pulleys should be adjusted on the same plane.
The main reason is that the main engine is overloaded for a long time, the heat treatment of the bearing is improper, and the hardness of the broken material exceeds the standard. When handling, it is necessary to replace the new bearing, and pay attention to timely maintenance and repair during the future operation.
Explain that the counter-shock crusher hammer or counter-attack lining is seriously worn, causing the gap between the hammer and the counter-attack plate to be too large, adjusting the back-and-forth impact frame clearance, or replacing the lining plate and the plate hammer; adjusting the position of the counter-attack frame so that the sides and the machine The gap between the lining plates is even; if the lining on the frame is seriously worn, it should be replaced in time.
The counter-shock is suddenly stopped during operation, which causes many reasons, such as blockage of the discharge port, slippage of the belt, low voltage, and bearing damage. These problems should be eliminated, such as removing the blockage of the discharge port, tightening the belt, increasing the voltage and ensuring the stability of the voltage, and replacing the bearing.
The main reason for this failure is that the spring is not relaxed when the discharge opening is adjusted. Therefore, the broken spring must be replaced during processing.
Should stop immediately, check whether the inside of the crushing chamber contains metal impurities or parts break, and clean the crusher cavity; check the internal lining fastening and the gap between the hammer and the lining, too small clearance will cause abnormal noise .
The main cause of this problem is that the belt slips, the friction with the pulley produces 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.
The above is the fault and solution that is easy to occur in the use of the impact crusher. If this happens during later use, you can refer to the simple check. When we choose the impact crusher, we must choose the quality clearance, the regular manufacturer. Avoid problems that often occur later, or without quality assurance.
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