| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: invention relates to design of guide nonmetallic bearings providing operation of rotating shaft, for instance, rotors of circulating pumps of nuclear power stations, and method of their mounting. Proposed bearing support for vertical shaft includes two guide bearings, upper and lower ones, each consisting of outer split body and cage with solids of revolution vertically split in two. Division plane of one of halves of cage in made in length in form of dovetail. Division plane of other half of cage is made in form of mating slot over length. Solids of revolution are rollers made of viscoelastic material with surface alloying. Rollers are fitted in ports of with clearance in length and diameter, and ratio of length and diameter of rollers being from 6:1 to 5:1. Invention contains method of installation of said bearing support. According to proposed method, split body of bearing is mounted on preliminarily prepared place and other half of cage is driven along shaft from top so that dovetail of one half of cage gets into mating slot of other half of case coated preliminarily with adhesive substance sliding downwards along said slot to mounting pad. Rollers are fitted in glued cage and cage with rollers is lowered into bearing body. ^ EFFECT: increased service life of bearing support, facilitated mounting and reduced time taken for mounting. ^ 3 cl, 4 dwg |
