What is the reason for cone crusher drop cone?

Problems with fixtures

Worn or damaged bowl tile: The bowl tile is an important part to support thecrushing cone. If the bowl-shaped tile is overly worn, its matching precision with the crushing cone will be reduced, which may lead to the displacement of the crushing cone during the working process and drop the cone. For example, long-term high load operation, poor lubrication and other factors may accelerate the wear of bowl shaped tile.

Loose or broken bolts: The crushing cone of the cone crusher is connected to other parts through bolts and other fixtures. If these bolts are loosened due to vibration during operation, or broken due to excessive shear force, the crushing cone will lose sufficient fixing force, and cone fall will occur.

Improper operation

Overload operation: When the hardness of the material handled by the cone crusher exceeds the design range or the feeding speed is too fast or the feeding volume is too large, the overload phenomenon will occur. Overloading may cause the crushing cone to be subjected to excessive pressure, causing the fixing device to fail, which in turn triggers cone fall. For example, if very hard ores are fed into the crusher in large quantities and at high speeds, it will cause a huge impact on the crushing cone.

Frequent starting and stopping: Starting and stopping the cone crusher frequently will cause frequent shocks and vibrations to the internal parts of the machine. This shock and vibration may gradually loosen fixtures and increase the risk of falling cones. For example, if the crusher is started and stopped several times in a short period of time during the production process due to an unreasonable operating procedure, it will cause damage to the equipment.

Component quality problems

Poor quality of the crushing cone itself: If there are quality defects in the crushing cone during the manufacturing process, such as the material does not meet the requirements, there are air holes or inclusions in the casting, etc., its strength and stability may not be able to meet the working requirements. During the working process, these defects may lead to deformation or damage of the crushing cone, thus triggering the falling cone.

Poor quality of other related components: In addition to the crushing cone itself, the quality of components such as the liner and frame can also affect the stability of the crusher. If the liner is not firmly installed or the structural strength of the frame is insufficient, deformation may occur during the working process, which in turn affects the fixation of the crushing cone and leads to cone fall.

Lubrication failure

Insufficient lubrication: The moving parts of the cone crusher need good lubrication to reduce friction and wear. Failure of the lubrication system, such as damage to the oil pump, blockage of the oil pipe, or insufficient grease (oil), can lead to increased friction between the bowl tile and the crushing cone and other components. This may loosen the connection between the components and eventually trigger a falling cone.

Grease (oil) contamination: When outside dust, moisture and other impurities are mixed into the grease (oil), it will reduce its lubricating performance, and may also corrode the components. For example, in a dusty working environment, if the sealing device fails and dust enters the lubrication system, it will intensify the surface wear of the bowl tile and crushing cone, affecting the fit between the components and increasing the possibility of falling cone.