The application of slewing bearings in large construction machinery, such as cranes, excavators, etc., requires extra attention to the load of the slewing bearing, and try not to exceed the load during actual use to avoid damage to the slewing bearing. The joint planning of the bearing can handle the combined load very effectively. However, every time a load exceeding the carrying capacity is applied, deformation may occur, leading to premature failure. Safety is the main problem for detecting slewing bearing problems, because the gap caused by accelerated wear is too large, resulting in the overall rigidity of the whole system being reduced. Another safety problem involves work assignment, which is especially common in excavators. Poor work assignment leads to failure. Uniform wear pattern.
In order to reduce the uneven load and the selected bearing type cannot meet the mechanical working load, when selecting the slewing bearing, it is necessary to pay attention to the load of the slewing bearing. According to the working type and load, select the appropriate slewing bearing. The slewing bearing is a special bearing. Bearings with special structures that can receive generalized loads such as axial load, radial load and overturning moment at the same time, so when selecting a slewing bearing, it is also necessary to consider the receiving force of each load.
When the slewing bearing is overloaded, it may become stuck and unable to rotate. At this time, the body can be skewed by reducing the amplitude, adjusting the outriggers or moving the chassis position to help realize the rotation of the heavy object. , Complete the scheduled lifting and other work. If the slewing bearing has been damaged, then technical repairs are required to avoid greater damage. Therefore, when we buy the slewing bearing, we must carefully calculate each load and select the appropriate slewing bearing, which can greatly improve the service life of the slewing bearing.
