Fixing structure with blade radial size and rotating angle adjusting function

Abstract

The invention discloses a fixing structure with a blade radial size and a rotating angle adjusting function. A connecting part is arranged below a blade, the connecting part comprises an upper convexring and a lower convex ring, and a shaft handle is arranged between the upper convex ring and the lower convex ring; the upper convex ring is embedded into the blade, and the lower convex ring is arranged in a corresponding groove of a wheel hub; a wheel cover is also provided with corresponding grooves, the grooves of the wheel cover correspond to the grooves of the wheel hub, the lower convex ring can be fastened through the grooves of the wheel cover and the grooves of the wheel hub, and the wheel cover is fixed on the wheel hub through bolts; the wheel hub and the wheel cover are respectively provided with long-strip-shaped grooves corresponding to the shaft handle; convex ribs are arranged on the outer side of the shaft handle in an axial direction; and the plurality of sets of grooves are formed in the wheel hub and the wheel cover in the radial direction. The fixing structure has the advantages that the structure corresponding to the lower convex ring is arranged in the radialdirection, so that radial adjustment can be carried out according to requirements; and the convex ribs of the shaft handle correspond to the convex ribs of the long-strip-shaped grooves, so that the influence of external force after the angle of the blade can be limited can be limited to rotate; and the rotating angle of the blades can be set randomly, and various requirements can be met.

Description

technical field [0001] The invention relates to a blade, in particular to a fixing structure of a blade and a hub. Background technique [0002] Blades are commonly used mechanical components. When in use, it is sometimes necessary to adjust the rotation angle and length of the blades so as to change the exhaust air volume or coincide with the inner diameter of the exhaust air passage. The existing blades are all fixed structures, especially the radial lengths of the blades are all fixed, which cannot realize the adjustment function. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a fixed structure with blade radial dimension and rotation angle adjustment, a connection part is provided under the blade, and the connection part includes an upper convex ring and a lower convex ring, and the upper convex ring There is a shank between the upper convex ring and the lower convex ring;...

AI Technical Summary

Problems solved by technology

The existing blades are all fixed structures, especially the radial length of the blades is fixed, which makes it impossible to realize the adjustment function

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