Causes and troubleshooting of hammer crusher

Maintenance is a special headache for many technicians. It is very common for the hammer crusher to malfunction during the mining process. If it is not eliminated in time, it will seriously affect the work progress and efficiency. To this end, we will introduce the hammer crusher failure and troubleshooting methods.
Fault phenomenon 1: The discharge granularity is too large.
Reasons: 1) the hammer is too worn; 2) the sieve is broken.
Remedy: 1) replace the hammer; 2) replace the sieve.

Symptom 2: The bearing is overheated.
Reasons: 1) insufficient grease; 2) excessive grease; 3) deterioration of grease contamination; 4) bearing damage.
Remedy: 1) Fill the appropriate amount of grease; 2) The grease in the bearing should be 50% of its space volume. 3) Clean the bearings and replace the grease. 4) Replace the bearing.

Symptom 3: The elastic coupling produces a knocking sound.
Reasons: 1) loose pin; 2) elastic ring wear;
Remedy: 1) Stop and tighten the pin nut; 2) Replace the elastic ring.

Symptom 4: A knocking sound is generated inside the machine.
Reasons: 1) Non-crushed material enters the inside of the machine; 2) The lining fastener is loose, the hammer hits the lining; 3) The hammer or other parts break. Imported pump
Remedy: 1) stop, clean the broken cavity; 2) check the fastening of the liner and the gap between the hammer and the sieve; 3) replace the broken parts.

Symptom 5: The production is reduced.
Reasons: 1) The gap of the screen is blocked; 2) The feeding is uneven.
Remedy: 1) Stop, clean the blockage in the gap of the sieve; 2) Adjust the feeding mechanism.

Symptom 6: The amount of vibration is sudden.
Reasons: 1) When the hammer is replaced or the static balance of the rotor is not satisfactory due to the wear of the cone; 2) the hammer is broken, the rotor is unbalanced; 3) the pin is bent and broken; 4) the triangular disk or the disc crack; 5) the ground The foot bolts are loose.
Remedy: 1) Remove the hammer head and select the hammer head according to the weight, so that the total weight of the hammer on each hammer shaft is equal to the total weight of the hammer on the hammer shaft, that is, the static balance meets the requirements; 2) replace the hammer head; Replace the pin; 4) repair or replace the welding; 5) tighten the anchor bolt.

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