Integrated fan propeller and manufacturing method thereof

Abstract

The invention discloses an integrated fan propeller which comprises a blade drum, two end rings and a central disk, wherein the two ends of the blade drum are respectively and fixedly connected with the end rings; the central disk is arranged at the middle part of the blade drum; the blade drum is fixedly connected with the central disk; the blade drum comprises a drum body consisting of multipledrum body units; each drum body unit comprises a circumferential piece which is provided with blades arranged along the radial direction of the blade drum; one end or two ends of the circumferential piece are provided with a folded structure; the circumferential pieces of the multiple drum body units are sequentially connected end to end to form the cylindrical drum body; multiple through holes are evenly distributed on the circumference of the central disk, and blade grooves are arranged between the through holes and the edge of the central disk; and one end of each blade of the blade drum is extended into the through holes of the central disk through the blade grooves. The invention has simple structure; the blades are shaped by utilizing a progressive die; and the central disk and the end rings are integrated into a whole, thereby being convenient for a flow line production mode and being capable of realizing the intensive production so as to improve the capacity. The invention also discloses a manufacturing method of the integrated fan propeller.

Description

technical field [0001] The invention relates to an impeller of a fan, in particular to an integrated fan impeller. The invention also relates to a method for manufacturing the integrated fan impeller. Background technique [0002] The existing fan impeller is a forward multi-blade impeller. The blades of this impeller are wider, the number of blades is large and the distance between blades is short. For impellers with this structure, the blades are mostly connected with the front disc and the rear disc by riveting or welding. The manufacturing process is complicated, the waste generated is large, and the material utilization rate is low. In addition, the welded structure is also prone to environmental problems. [0003] In addition, impellers with this structure are often processed in a single piece due to problems in the manufacturing process and cannot be produced in an assembly line, which severely restricts production capacity and rational utilization of resources. C...

AI Technical Summary

Problems solved by technology

For impellers with this structure, the connection between the blades and the front disc and the rear disc is usually riveted or welded. The manufacturing process is complicated, the waste generated is large, and the material utilization rate is low. In addition, the welded structure is also prone to environmental problems.

[0003] In addition, impellers with this structure, due to the problems in their manufacturing process, are often processed in a single unit and cannot be produced in an assembly line, which seriously restricts the production capacity and the rational use of resources

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