The installation of thrust bearing

Flat plane thrust bearing thrust bearing loose ring installation method in assembly mainly bear axial load, its wide application. Although the thrust bearing installation operation is simple, but it is still common errors occur when maintenance, tight ring of the bearing and loose ring installation position is not correct, the results lose bearing, axis neck quickly wear. As shown in figure for locking ring installed on the end face of stationary, namely the error assembly. Tight ring of inner ring and shaft neck as transition fit, when the shaft rotates driven tight ring, and end face friction with stationary parts, under the axial force ( 外汇) , there will be friction torque is greater than the inner diameter with resistance moment, locking ring and shaft mating surface forced rotation, intensifying journal wear. Thrust bearing, therefore, when installation should pay attention to the following points. ( 1) Distinguish tight ring of bearing and loose ring ( According to the bearing inner diameter size, aperture is 0. 1 to 0. 5毫米) 。 ( 2) The static distinguish institutions. ( The parts movement does not occur, is mainly refers to assembly) 。 ( 3) In any case, bearing rings should always be on stationary on the face of. Thrust tapered roller bearing installation method thrust cylindrical roller bearings, thrust needle roller bearing is suitable for low speed, speed a bit plane thrust tapered roller bearing thrust bearing in the assembly mainly bear axial load, its wide application. Although the working process of the installation operation of steam turbine thrust bearing thrust bearing what kind of? Installed on the spindle of the thrust plate on both sides of the face and non face each have several pieces of thrust segment, there is a pin hole on the back of the tile. On the hole back segment in installed ring pin, tile can be turning around pin slightly. Off center 7 pin hole is located in the segment. 54 mm, so on the surface of the tile work constitutes cuneate gap between thrust disc. As the thrust plate rolled oil squeezed in wedge clearance, pressure increase, so this layer of oil film has the ability to withstand rotor axial thrust. Install ring placed on the torus seat, the oil through the orifice into the ring around the spindle oil chamber, and radial flow between tile. With spacious space between the tile, to facilitate the oil circulation in the segment. Spherical thrust bearing seat is equipped with oil return index oil ring, oil ring-fenced form annular oil chamber on the fringes of the thrust plate. In the face and non face oil back to the top of the baffle ring of two oil return hole, but also can use a needle valve to adjust the volume of oil. Between thrust segment ring installation and thrust plate is equipped with oil ring, the oil baffle bad encirclement of thrust segment, the formation of thrust bearing ring the oil chamber.