The fan shaft is an important component that connects the blower fan and the fan base. The fan shaft is hollow. The material of the fan shaft is stainless steel. The inner hole processing is difficult. The processing equipment for the fan shaft is a deep hole drilling boring machine, according to the fan shaft. Characteristics, deep hole drilling boring machine to increase the bed. The main shaft of a wind turbine has both radial and axial offsets. In fact, the axial offset of the main shaft is transmitted directly to the input shaft of the gearbox. Unless radial clearance, axial clearance control, and planetary positioning are specifically addressed for self-aligning roller bearings, axial misalignment can adversely affect the planet carrier support bearings in the gearbox.
The axial displacement of the main shaft depends on the rigidity of the system and the internal clearance of the fixed-end bearing. With a preloaded double-row tapered roller bearing on the fixed end, the axial offset of the right end of the spindle is almost four times less than with a spherical roller bearing. Reducing the axial offset can reduce the risk of axially pinching the input shaft of the gearbox, which is very important.
In the case of a bearing arrangement with one end fixed and one end floating, the fixed end bearing (double row tapered roller bearing or spherical roller bearing) simultaneously bears radial and axial forces, while the floating end bearing (cylindrical roller bearing or adjustment The roller bearing) only withstands radial forces. Because the direction of action of the axial force is from the rotor end to the gearbox end, whether a double row tapered roller bearing or a spherical roller bearing is used, only one row of rollers near one end of the gearbox is subjected to all axial forces.
