How to prevent the cone crusher from the failure of spindle breakage

Crushers are widely used in many industries such as mining, smelting, building materials, highway, railroad, water conservancy and chemical industry. Cone crusher has large crushing ratio, high efficiency, low energy consumption, uniform product size, suitable for medium and fine crushing of various ores and rocks. In its working process, the main shaft breakage is a common fault, which can seriously affect the normal work of the crusher. Therefore, it is necessary to take effective measures to avoid the occurrence of this fault.

Causes of cone crusher main shaft breakage:

1. Due to the unique working characteristics of the crusher, the main shaft is subjected to frequent impact for a long time and fatigue damage is produced.

2. Overfeeding, causing the equipment to overload.

3. Ore in the extraction and transportation process, often interspersed with some waste metal objects, these objects through the upper end of the tape set electromagnet, due to the electromagnet adsorption capacity is weak, coupled with the metal characteristics of materials containing manganese steel, electromagnet can not be excluded, resulting in these materials interspersed in the ore and slurry into the crusher, resulting in frequent over iron, thus causing frequent impact on the spindle and other components. Make the spindle produce fatigue damage, is the main cause of spindle fracture.

Preventive measures:

1. Field maintenance personnel should recycle the replaced waste parts and put them in the designated position when carrying out maintenance operations, and it is strictly forbidden to throw all kinds of metal waste into the ore at will.

2. Mineral processing workshop maintenance personnel overhaul equipment, strictly comply with the operating procedures, avoid leaving maintenance tools and debris in the equipment.

3. Improve the ability of metal detector to detect and exclude metal.

4. Increase the inspection of materials and pick out foreign objects when found.

5. When abnormalities such as current and sound are found, deal with them and report them in time to prevent the expansion of accidents.

6. Periodically use ultrasonic and other instruments to detect the spindle and other stressed parts in order to understand the actual condition of the current equipment.

7. Strengthen the training of workers, improve the actual operation level of workers, strengthen the maintenance of equipment, and ensure that the equipment is in good technical condition.

8. For key equipment components, do a good job of purchasing their spare parts in stock so as not to cause the whole system to stop production after a special situation.

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