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Turbine man must understand the knowledge of bearing! - bearing knowledge

by:Waxing     2020-06-05
Steam turbine radial bearing is divided into fixed bearing two types of bearings and tilting watts. 1, fixed bearing oil cylinder bearing, elliptical bearings fixed watts watts bearing, more oil is woven and leaf oil bearing ( Currently not used) 。 Ordinary cylindrical bearings, is composed of upper and lower half. The second half of the bearing in vitro has three radial adjusting pad, the upper bearing at the top of the set, a radial adjusting pad for bearing adjustment. For bearing adjustment. Oval tile bearing is self-aligning bearing, possesses the advantages of less structural level, inside the bearing directly on the surface of casting babbitt, bearing inner tile surface processing into elliptical form. 2, tilting bearings, bearing four tilting watts in the upper two segment's back, along the steering oil place with spring, make the segment in the back pressure to the tendency of the rotor, prevent the inlet side of the segment and shaft neck brake of undesirable tendency, at the same time in the tile surface feed side inclined, and lubricating oil into the tile surface. Half of round, the second half of the tilting composed of two pieces of tilting tile tile bearing, the stability of the structure of the bearing is better than cylindrical bearings, bearing capacity is larger than general tilting tile bearing, and tilting tile of partial load bearing and the advantages of no sensitivity to teach in small. Is a new type of tile surface oil inlet side into the tank with tilting tile bearing, lubricating oil with the method of direct oil supply and oil discharge. Each segment has a into the oil tank, oil directly discharge after working in the tile surface, with low power consumption. 1, the classification of the thrust bearing radial thrust bearing the structure is placed in a body for the radial and thrust bearings, bearing is spherical to match corresponding spherical and bearing sleeve body, make the bearings with to automatically adjust the deflection of shaft deformation, reach on the tile surface and the rotor thrust plate has good contact between the surface, this structure is suitable for the flexible rotor and axial load is not too much of a unit. And an elastic equilibrium for tile radial thrust bearing, thrust aside the tile on the elastic ring, hosted by elastic ring to produce elastic deformation, in order to achieve each piece of tile surface and has good contact with the requirements of the thrust plate of plane. This structure is used in rigid rotor and the axial load is not too much of a unit. 2, mirra ginsburg tile symmetric bearing, thrust bearing can be used for positive and negative two to work.
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