A fan impeller

Abstract

The invention belongs to the technical field of impellers, and specifically relates to a fan impeller; including a wheel disc and blades; an annular mounting cavity is opened on the wheel disc, and an annular mounting ring is installed in the annular mounting cavity; the annular mounting ring is pressed by a pressing plate Fitted in the ring-shaped installation cavity, and the pressure plate is fixed on the wheel by fixing bolts; the ring-shaped installation ring is formed by splicing the upper ring and the lower ring; the bottom of the lower ring is provided with a pressing edge, and the pressing The edge is pressed on the annular installation cavity and the pressing plate; the upper annular ring is evenly opened with installation grooves, and the blades are detachably installed in the installation grooves; the thickness of the annular installation ring set on the outer ring of the annular installation cavity is smaller than that of the annular installation The thickness of the annular installation ring set on the inner ring of the cavity; the operator only needs to replace the corresponding number of blades on the annular installation ring, and then the number of blades on the impeller can be increased or decreased, and the impeller can be adjusted without disassembling the impeller as a whole. The blades on the roulette perform follow-up action.

Description

technical field [0001] The invention belongs to the technical field of impellers, in particular to a fan impeller. Background technique [0002] The ventilator is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. The impeller is an important part of the ventilator. [0003] At present, the fan is a general-purpose machine with a large number of applications and a wide range of applications. The power consumption of the motor used with the fan accounts for about 20% of the total power generation in the country. As one of the core components of the fan, the performance of the impeller directly affects the energy consumption, and the shape of the impeller blade directly affects the flow performance of the fluid and the strength of the blade, so it is very important to optimize the design of the impeller. [0004] At present, the impeller mainly includes a disc and blades on the disc. The blades are all rigid blades, that i...

AI Technical Summary

Problems solved by technology

[0004] At present, the impeller mainly includes a disc and blades on the disc. The blades are all rigid blades, that is, the shape and position of the blades are fixed; and the blades and the disc are rigidly connected. When the blades on the impeller are broken or damaged At this time, maintenance personnel need to disassemble, replace or repair the impeller as a whole. This method not only reduces the efficiency of the impeller, but also wastes the entire impeller after replacement, making it difficult to reuse the impeller efficiently; at the same time, the existing impeller It is difficult for the disc to adapt to the installation of different numbers of blades, which reduces the efficient utilization of the disc

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