Wheel disc and air compressor comprising same

Abstract

The invention belongs to the technical field of aero-engine manufacturing, and discloses a wheel disc and an air compressor comprising the same. The wheel disc comprises a wheel disc body; a pluralityof main vanes and a plurality of sub vanes are arranged on the wheel disc body; the wheel disc body is of an integral structure; the wheel disc body is of a hollow structure; the hollow structure comprises a communication ring component which is arranged along the periphery of the wheel disc body, a main pipeline component which is arranged in the axial direction of the wheel disc body and a subpipeline component which is arranged in the radial direction of the wheel disc body; a plurality of first powder discharging holes are formed in the top end surface of the wheel disc body; a pluralityof second powder discharging holes are formed in the bottom outer side of the wheel disc; and the first powder discharging holes, the main pipeline component, the communication ring component, the sub pipeline component and the second powder discharging holes communicate with one another. The invention further provides the air compressor comprising the wheel disc. The wheel disc body is of the integrated structure, so that production procedures are simplified, and a production cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of aero-engine manufacturing, in particular to a disc and a compressor with the disc. Background technique [0002] Since the centrifugal compressor was first applied to aero-engines in the late 1930s, it has always played an important role in the development history of aero-engines. [0003] Centrifugal compressors are mainly used in small and medium aero engines, especially turboshaft engines. With the advancement of design technology and the application of new structures and new materials, the efficiency and boosting ratio of centrifugal compressors have been continuously improved, and the product reliability has also become higher and higher. It has been widely used in small and medium-sized turbine aeroengines and almost all types of compressors. auxiliary power unit. The centrifugal compressor is characterized by a high single-stage boosting ratio, a wide range of stable work, and good corrosion resi...

AI Technical Summary

Problems solved by technology

Due to the complex structure of the wheel disc in the aero-engine, the traditional processing method requires multiple parts to be assembled, which is difficult, time-consuming and labor-intensive, making the production process complicated, which in turn leads to long production cycle and high production cost

At the same time, the weight of the roulette itself is too large, which is not conducive to the light weight of the roulette.

In addition, the root of the blade of the wheel is prone to stress concentration, which in turn leads to a shortened service life of the wheel

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