NUT AND ROLLING SCREW MECHANISM Russian patent published in 2009 - IPC F16H25/22 F16H25/24 

FIELD: machine building.

SUBSTANCE: invention relates to screw mechanisms, particularly to nuts of roller screw pair. Nut contains casing, allowing groove, drawn along the central axis, and radial openings. In radial openings there are installed rollers of longitudinal loading with axial rotation, transverse central axis of casing. Into mentioned openings with ability of rotation there are installed rollers of longitudinal loading. Additionally rollers of longitudinal loading are installed with ability of shift relative to casing along its pivot pin in answer to changing of influencing on it from the side of central loading axis. Additionally nut contains united system of load hydraulic compensation of rollers of longitudinal loading.

EFFECT: increasing of life cycle of screw mechanism, reduction of requirements to accuracy of manufacturing, reduction of unevenness of wear and improvement of maintainability.

15 cl, 8 dwg