Teach you how to operate slewing ring bearings correctly?

2020-08-07

The core component of the slewing ring is the slewing bearing, which directly determines the flexibility of the machine. Many users' unscientific operations on the slewing bearing often result in damage to the machine. So how should the correct equipment be operated?

Before slewing bearing equipment, the equipment surface of the main machine must be inspected. The supporting parts should have satisfactory strength, the connecting surface should be machined, and the surface should be smooth and free of debris and burrs. For those that cannot be machined to achieve the required flatness, special plastics with high injection strength can be used as fillers to ensure the accuracy of the equipment plane and to reduce vibration. When equipment slewing bearings, radial positioning should be carried out first, equipment bolts should be tightened crosswise, and the rotation of the bearings should be checked. There should be a sufficient pre-tightening force when tightening the bolts, and the pre-tightening force should be 70% of the yield limit of the bolt material. Equipment bolts should be equipped with quenched and tempered flat washers and spring washers are strictly prohibited.

The equipment slewing bearing should pay great attention to the conformity of the turntable, and try to leave a certain degree of flexibility for the machine on the basis of ensuring the conformity. This is a small skill of the equipment. The construction machinery product market is highly personalized, and different applications and usage requirements have different requirements for the structure and function of the same type of product. Slewing bearing equipment is generally an important part of various crawler construction machinery, and its design strength and dynamic characteristics will directly affect the working performance and safety of the whole machine. In the construction machinery industry, slewing bearing equipment is expensive and difficult to replace and repair. Therefore, the early failure of slewing bearings is an unacceptable phenomenon for manufacturers and users.