An adjustable blade centrifugal fan impeller

Abstract

This utility model relates to the field of centrifugal fan impeller technology and discloses an adjustable-blade centrifugal fan impeller, including a front impeller disc and a rear impeller disc, and a plurality of blades arranged in a ring between the front and rear impeller discs. A rotating rod is fixedly installed at one end of each blade near the axis of the front and rear impeller discs. This adjustable-blade centrifugal fan impeller has several angle-adjustable blades, each of which can be adjusted around the rotating rod and guided by a guide groove and a threaded post. When the adjustable-blade centrifugal fan impeller is under testing, different angles can be adjusted using a single blade, or multiple blades can be adjusted to various angles for testing, which is beneficial for developing impellers with different angles. When the adjustable-blade centrifugal fan impeller is in use, the blade angles can be adjusted in a timely manner according to the actual situation, resulting in higher practicality, a reasonable design, and convenient use. It saves costs and accelerates the testing efficiency of fan impellers.

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