Shaft surface oil seal installing sleeve gasket structure

The utility model relates to the technical field of installation of shaft surface oil seals of motors, and in particular relates to a motor shaft surface oil seal installing sleeve gasket structure, which comprises a sleeve and a gasket arranged in the sleeve, and is characterized in that the inner hole of the sleeve is a stepped hole, the diameter of the inner hole of the sleeve is sequentially reduced from left to right by two steps, the right end of the sleeve is sealed, the outer diameter of the gasket fits with the inner hole of the sleeve, the gasket is arranged in the small-diameter hole on the left side in the sealed end of the sleeve, the diameter of the inner hole of the gasket is gradually reduced from left to right, the connected part of the large-diameter of the inner hole of the gasket and the small-diameter of the inner hole of the gasket takes the shape of a slope, the gasket fits with a shaft extension, and the shaft surface oil seal is axially and radially positioned when in installation. The shaft surface oil seal installing sleeve gasket structure is reasonable in design, simple in structure, convenient to use and operate, capable of being positioned automatically, and free of damaging the shaft extension when the shaft surface oil seal is installed, and avoids deviation when the shaft surface oil seal is installed.