Rotating shaft oil seal device

The utility model discloses a rotating shaft oil seal device which is good in sealing performance, can fully prevent external dust, and effectively prevents external chemical gas media, corrosive gas media and water vapor from directly entering a bearing box body to cause pollution and damage to lubricating oil. Which comprises a moving ring and a static ring, and shaft holes for a rotating shaft to penetrate through are formed in the center of the moving ring and the center of the static ring, and is characterized in that the moving ring and the static ring are mutually inserted and are in running fit, and the static ring and the moving ring are arranged from inside to outside along the axial direction of the rotating shaft relative to a bearing box; a plug-in mounting inner circular surface, a plug-in mounting middle circular surface and a plug-in mounting outer circular surface are formed at the mutual plug-in mounting part of the movable ring and the static ring along the radial direction of the rotating