Common problems of wear-resistant cemented carbide hammers of crushers

       1. The bearing is overheated



① Reason: insufficient grease; too much grease; dirty and deteriorated grease; bearing damage;



②Removal method: add appropriate amount of grease; grease in the bearing should be 50% of the space volume; clean the bearing; replace the grease; replace the bearing.



2. The discharge granularity is too large



① Reason: the hammer is worn too much; the screen bar is broken;



②Exclusion method: replace the hammer head; replace the sieve strip;



3. The elastic coupling produces knocking sound



① Reason: the pin is loose; the elastic ring is worn;



② Elimination method: stop and tighten the pin nut; replace the elastic ring;



4. Reduced output



①Cause: The gap of the screen bar is blocked; the feeding is uneven;



②Removal method: stop, clean up the blockage in the gap of the screen bar; adjust the feeding mechanism;



5. Sudden vibration



①Cause: The static balance of the rotor does not meet the requirements when the hammer is replaced or the cone is worn out; the hammer is broken, ② the rotor is out of balance; the pin is bent or broken; the triangle or disc cracks; the anchor bolt umbrella;

Elimination method: remove the hammer head, select the hammer head according to the weight, make the total weight of the hammer on each hammer shaft equal to the total weight of the hammer on the hammer shaft, that is, the static balance meets the requirements; replace the hammer head; replace the pin shaft; electric welding Repair or replace; tighten the anchor bolts.