Pipe jacking machine slewing bearing
Pipe jacking machine slewing bearing
The pipe jacking machine is mainly composed of rotary excavation system, main top hydraulic propulsion system, soil conveying system, grouting system, measuring equipment, ground hoisting equipment and electrical system. The special three-row cylindrical roller slewing bearing (slewing bearing) produced by our company for pipe jacking machines is used for cutting cutterheads in rotary excavation systems.
The three-row cylindrical roller slewing bearing (slewing bearing) has three races, and the upper and lower raceways and the radial raceway are separated, so that the load of each row of rollers can be determined exactly and can be subjected to various loads at the same time. Among the slewing bearings, the bearing capacity is larger, the axial and radial dimensions are relatively large, and the structure is firm. This series of bearings has three independent rollers, and its normal direction is consistent with the direction of bearing load. It is used in the fields of mechanical equipment such as pipe jacking machines, shield machines (tunnel boring machines), ship unloaders, ladle turrets and stackers and reclaimers.
The characteristics of the three-row roller slewing bearing (slewing ring):
1. It has high working precision, large load carrying capacity, and can bear the combined action of axial force, radial force and overturning moment at the same time.
2. The mounting holes of the inner and outer rings are used for positioning, which is convenient for installation and disassembly.
