Common troubleshooting of cone crusher

As a common equipment in mining and sand and gravel aggregate production, cone crusher plays an important role in ore crushing. Due to improper use and operation during operation, various faults may occur, resulting in the inability of the equipment to operate normally. The troubleshooting and resolution of these faults are crucial for ensuring the normal operation of the equipment and extending its service life. Here are some common troubleshooting methods for cone crushers to help everyone better use the equipment.

1、 Abnormal oil temperature and pressure

Oil temperature too high

Reason: Poor oil quality, insufficient oil quantity, damaged bearings, high ambient temperature, insufficient cooling water or blocked cooler.

Troubleshooting method: Check the oil quality and replace it with new oil, replenish the oil quantity, replace damaged bearings, ensure sufficient cooling water supply, and clean the cooler.

Oil pressure increases or oil pressure decreases after the oil pump is started

Reason: Blockage of oil pipe or oil groove, malfunction of safety valve, abnormal operation of oil pump.

Troubleshooting method: Stop the machine to inspect and clean blocked oil pipes or oil grooves, repair or replace damaged safety valves and oil pumps.

2、 Vibration and noise

Strong vibration of crusher

Reason: Loose fixing device of machine base, entry of difficult to crush materials into the crushing chamber, blockage caused by excessive materials in the crushing chamber, breakage or wear of accessories, poor lubrication.

Troubleshooting method: Tighten the bolts, control the type and amount of feed, stop the machine for inspection and replace damaged parts, inspect the oil pump and pipelines, and ensure good lubrication.

Abnormal noise

Reason: Loose lining plate, non-circular moving or fixed cone lining plate, broken key of transmission coupling or gear, broken main shaft, etc.

Troubleshooting method: Stop the machine to check the tightening of screws and the condition of lining plates, replace broken or worn parts, and ensure reliable connection of transmission components.

3、 Abnormal particle size of ore discharge

Increased particle size of ore discharge

Reason: The lining plate is severely worn.

Troubleshooting method: Adjust the discharge port, reduce the size of the discharge port, and replace the severely worn lining plate.

4、 Other common faults

The oil contains a large amount of fine mud and impurities

Reason: Failure of sealing and dust prevention device, blockage or leakage of water pipes.

Troubleshooting method: Stop the machine and reseal or clean for maintenance, replace with new oil.

There is water in the oil, causing the oil level in the tank to rise

Reason: Water enters the lubrication station, the cooler leaks and the water pressure is greater than the oil pressure, the water supply is too large, or the return pipe is blocked.

Troubleshooting method: Cover the oil station with a shed, clean the oil tank, and replace the engine oil; Repair the leaking area or replace the cooler to reduce water pressure; Adjust the water supply or clean the return pipe.

The ‘flying car’ is invalid

Reason: Poor scratching, improper installation, or excessive wear on the inner wall of the lining; The oil film strength between the spindle and the bushing is insufficient.

Troubleshooting method: Ensure that the clearance between the inner and outer holes of the cone sleeve is appropriate, and use melted zinc alloy to fix the cone sleeve and the axis sleeve; Repair or replace worn components.

5、 Preventive measures

Regular inspection and maintenance: Regularly inspect and maintain the cone crusher, including checking the oil quality, oil quantity, sealing device, bearings, lining plates and other components for wear.

Optimize operating procedures: Strengthen the training of operators to ensure that they follow the operating procedures and avoid equipment failures caused by improper operation.

Add iron removal equipment: Install iron removal equipment at the feed inlet to prevent non broken materials such as iron blocks from entering the crushing chamber and causing equipment damage.

Reasonable feeding: Ensure uniform and continuous feeding, avoid excessive or insufficient feeding, especially for materials with more fine particles or high humidity, special attention should be paid.

In summary, the troubleshooting of cone crushers requires comprehensive consideration of factors such as the structural characteristics of the equipment itself, the working environment, and the operational level of the operators. By regularly inspecting and maintaining, optimizing operating procedures, adding iron removal equipment, and implementing reasonable feeding measures, the occurrence of failures can be effectively prevented and reduced, ensuring the normal operation of equipment and extending its lifespan.