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Cone Crusher Spindle Fracture

Cone Crusher Spindle Fracture

Cone crusher spindle fracture 4 major reasons 6 major countermeasures

Spindle fracture is the most serious failure of the cone crusher. Once the fracture occurs, the maintenance takes a long time and the high cost, which brings great economic losses to the enterprise. Therefore, the reasons for the fracture of the cone crusher main shaft are analyzed, and effective preventive measures are proposed to ensure safe and efficient operation of the cone breaking.

Cause of fracture of the cone breaking spindle

Too much feed

When the cone breaks too much feed, it will cause the cone to break into the crushing chamber, which will bring a large pressure to the crusher, and finally the cone will be overloaded. In the long run, it will cause the broken spindle to break.

equipment worn out

The working environment of the cone is relatively bad, and it will withstand mechanical shock for a long time in the work. The service life is long, and after the equipment is aging, the main shaft is fatigued and damaged, and finally the main shaft is broken.

Doped metal impurities in crushed materials

During the transportation and collection of ore, some metal materials of unknown origin may be doped, such as forklift buckets and wearers during the use of the loader, resulting in some metal impurities. In addition, the metal in the ore may be caused by various types of damaged bearings, bolts, and hinge pins. When these metal materials are placed on the electromagnetic iron remover mounted above the conveyor belt, the electromagnet cannot be discharged due to the low adsorption capacity of the electromagnet and the presence of a manganese-metal-based metal material. When these metal impurities are doped into the crushing material and enter the crushing chamber, the cone will break the iron frequently, causing frequent impact pressure on the main shaft and other components, eventually leading to fatigue, wear and fracture of the main shaft.

Other parts are damaged

Some companies pay less attention to component damage. During the cone breaking process, the fragments generated by the fractures of the drive shaft, the transmission gear and the eccentric sleeve are not found and stopped by the operator, causing the debris to enter the crusher and enter the bevel gear of the meshing transmission. The transmission gear is damaged or even collapsed, thereby increasing the spindle pressure and causing the spindle to break.

Cone crusher spindle failure prevention measures

1. For operators responsible for shoveling, loading and transporting, it is necessary to raise the awareness of maintenance and maintenance of the equipment to ensure the integrity of the bucket, the conveyor belt and the hinge pins to ensure that it does not produce metallic impurities. At the same time, timely repair and replacement of some worn gears and their surrounding components.

2, during the cone breaking work, the operator needs to check whether the lubrication condition of the equipment is good under the premise of safety, and pay attention to observe the operating load of the equipment. Observe the oil pressure, oil temperature and abnormal noise in the equipment during operation. The operator should improve the inspection of the materials, find the foreign objects in time and pick them out. At the same time, real-time monitoring of the working condition of the equipment is required, and it is necessary to timely process and report when the sound, current, and vibration are abnormal, thereby preventing the impact of the accident from becoming large.

3. On-site maintenance personnel must replace the scrapped parts in time when they are inspecting and repairing the equipment, and recycle them. It is strictly forbidden to discard all kinds of metal materials into the ore. At the same time, some parts that are adjacent to the scrapped, scrapped edge need to be replaced directly. When repairing equipment, it is necessary to strictly abide by the relevant rules and regulations, and use the standard behavior to avoid leaving debris and maintenance tools in the cone crusher.

4. In daily work, it is necessary to pay attention to the amount of feed at all times to avoid the phenomenon of excessive feedstock, which may cause the possibility of spindle breakage.

5. Strengthen the professional skills training for operators in all links, improve the actual operation ability of the operators as much as possible, improve the maintenance effect on the equipment, and carry out overhaul and medium repair of the equipment in time to ensure that the equipment is in good working condition for a long time.

6. For the main shaft, crusher torso and other important equipment parts and components, inventory backup should be done to avoid the production system from being stopped after special circumstances, thus affecting the overall fluency of production. At the same time, the establishment of a sound management file system can effectively help business managers to identify the application and failure of mechanical equipment, and help managers to adopt targeted improvement measures.

During the operation of the cone breaking, the operator should regularly inspect and repair the equipment and formulate corresponding management measures to reduce the damage caused to the equipment caused by overload, iron, illegal operation and other factors, and reduce losses.