Mechanical failure
Crane slewing bearing plays the role of connecting the truck and chassis parts in the rotary mechanism, and also supports the whole rotating part of crane.If the steel ball in the swing bearings is damaged and the raceway abrasion will affect the work of the rotary mechanism, in severe cases, the rotary mechanism will be heavy and make noises, and the pressure of the rotary hydraulic system will exceed the rated value.When hoisting and unloading are carried out at the stop of rotation, the vibration amount of the slewing bearings will be too large at the moment of falling and falling together, indicating that the clearance amount of the slewing ring has seriously exceeded the limit.At this point, the turntable bearings should be repaired or replaced.
The general causes of mechanical failure are inadequate maintenance and improper use.
