The Elimination Ways of Common Breakdowns of Hammer Crusher

1. The bearing runs hot.

Reasons: The lubricating grease is insufficient; there are two much lubricating grease; the lubricating grease goes bad; the bearing is damaged.

Elimination ways: Add proper amount of lubricating grease; the lubrication grease inside the bearing should be half of its volume; clean the bearing; change new lubricating grease; change the bearing.

2. The granularity discharged is too big.

Reasons: The abrasion of the hammer is serious; the grate bar breaks.

Elimination ways: Change new hammer; change the grate bar.

3. The output decreases.

Reasons: The gap of the grate bar is blocked; the materials are not fed in an even manner.

Elimination ways: Stop the machine and clean the tamper inside the gap of the grate bar; adjust the material feeding mechanism.

4. There is knock on the elastic coupling.

Reasons: The pin roll is loose; the elastic ring is abraded.

Elimination ways: Stop the machine and tighten the pin roll nut; change new elastic ring.

5. There is knock inside the machine.

Reasons: some materials that cannot be crushed go inside the machine; the fasten part of the lining board is loose and the hammer knock on the lining board; the hammer of other spare part breaks.

Elimination ways: Stop the machine and clean the crushing chamber; examine the tightness of the lining board and the gap between the hammer and the grate bar; change the broken spare parts.

6. The hammer crusher vibrates.

Reasons: The static balance of the rotor does not reach the requirement when changing the hammer or due to the abrasion of the cone head; the hammer breaks and the rotor loses its balance, the pin roll twists and breaks; the triangle plate or the round plate breaks; the foundation bolt is loose.

Elimination ways: Dismantle the hammer and select hammer according to the weight in order to make sure the total weight of the hammer on every hammer bearing is the same with the total weight of the hammer on the opposite hammer bearing, that is to say, the static balance reaches the stipulated requirement; change new hammer; change the pin roll; repair or change the electric welding; fasten the foundation bolts.