High-rotating-speed integrated hub type impeller

The utility model provides an integrated hub type impeller with high rotating speed, which relates to the technical field of fans and comprises a hub, a shaft sleeve and blades, and the inner side of the hub is connected with the shaft sleeve in a matched manner through a conical surface and a shaft sleeve fastener; the hub comprises blade handles, and the outer side of the hub is connected with the blades in a matched mode through the blade handles. The hub is hollow, and the blades are of a cavity structure. The hub of the impeller is made of hollow cast integrated aluminum alloy, and the blades are of cavity structures, so that the weight of the whole impeller is light, the radial acting force of the impeller on the rotating shaft is reduced, the strength requirement of a large-diameter impeller at a high rotating speed is met, and the impeller can be applied to an axial flow fan with the diameter of 1.5-2m and the rotating speed within 1000r/min. And meanwhile, the impeller is simple in structure, the uti