Hammer crusher common faults and solutions
Fault 1: Vibration
1. The crusher and the motor are installed on different shafts.
Solution: Correct and adjust to meet the technical requirements of installation.
2. The rotor is unbalanced
Solution: Rearrange the ring hammer.
3. The feed block is too large
Solution: Control the degree of material block.
4. The bearing seat or the anchor nut is loose
Solution: Check carefully and tighten in time.
Trouble 2: Reduced production
1. The gap between the rotor and the sieve plate is too large
Solution: Adjust the spring bolt.
2. Ring hammer wear
Solution: Repair or replace the ring hammer.
Trouble three: abnormal sound in the machine
1. Unbreakable materials or metals enter the crushing cavity
Solution: Clean up the crushing chamber.
2. Internal parts activities
Solution: Check carefully and tighten in time.
3. Internal parts are broken
Solution: Check carefully and replace the broken parts.
4. The rotor collides with the sieve plate
Solution: Adjust the gap between the rotor and the sieve plate.
Fault 4: The bearing temperature is too high.
1. Insufficient grease
Solution: add grease.
Hammer crusher pulley hub and its matching shaft head and keyway are often worn out. After the problem occurs, the traditional method is used to ream the hub, and after repairing the welding, the shaft head and the keyway size are repaired by machining. However, the thermal stress caused by the high temperature of repair welding cannot be completely eliminated, and the shaft is prone to breakage during operation, resulting in major accidents. Moreover, disassembly, repair welding, and machining not only increase the labor intensity of workers, but also waste a lot of precious production time for enterprises.
Western countries mostly use polymer composite materials to repair the wear of hammer crusher on site. The use of polymer materials, free of disassembly, free of machining on-site repair, low maintenance cost, short cycle, greatly reduces the labor intensity of maintenance personnel; it has excellent comprehensive mechanical properties, super adhesion, no high temperature stress, fully satisfied Equipment operation requirements. At the same time, the good plasticity can ensure 100% contact between the shaft and the mating surface of the hub, avoid the possibility of gaps again, and complete the fault maintenance of the hammer crusher.
