Crane pulleys are key components in lifting machinery, mainly used to change the direction of movement of wire ropes, transmit power and share loads, thereby improving the mechanical efficiency and operational flexibility of cranes. The following is a detailed introduction to the maintenance and common problems of crane pulleys:
Crane Pulleys Maintenance and Common Problems
Regular Inspection
Wear: The wear depth of the wheel groove exceeds 20% of the wire rope diameter and needs to be replaced.
Lubrication: The bearings are filled with lithium-based grease every month.
Wire rope matching: Avoid slippage caused by too small rope diameter or jamming caused by too large rope diameter.
Fault handling
Abnormal noise: Check for bearing damage or insufficient lubrication.
Rotation jam: Clean impurities or replace rusted bearings.
Wire rope skipping: Adjust the pulley alignment or replace the deformed wheel groove.
