Mechanical bearing mounting expansion sleeve

Abstract

The utility model relates to the technical field of mechanical bearing mounting sleeves, and solves the problems that the two conditions of simple mounting and firm mounting cannot be considered at the same time, the structure is too complicated, the mounting firmness is insufficient, and the convenience and firmness of the bearing mounting sleeve are poorer according to the scheme. The mechanical bearing installation expansion sleeve comprises a shaft body, the surface of the shaft body is sleeved with an installation assembly, the surface of the installation assembly is sleeved with a bearing, the installation assembly comprises an expansion sleeve connected to the surface of the shaft body in a sleeving mode, a cavity is formed in the expansion sleeve, and a movable conical ring is arranged in the cavity; a high-pressure oil gun is used for injecting high-pressure oil into the one-way valve, the high-pressure oil enters the inner cavity of the expansion sleeve through an oil injection hole below the one-way valve, the cavity pushes the conical ring to move downwards under the pressure effect, the conical ring generates axial displacement, bidirectional radial force is generated on the expansion sleeve under the resultant force effect, and the size installation requirements of a shaft body and a bearing are met. And a firmer and more convenient mounting effect is achieved.