Gas compressor impeller with elastic table

A compressor and elastic technology, which is applied in the field of compressor impellers, can solve the problems of loss of pre-tightening force of the shaft end nut, loosening of the shaft end nut, and reduction of the axial size, etc., so as to achieve the effect of improving the anti-deformation ability and avoiding loosening.

Inactive Publication Date: 2020-01-17
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The compressor impeller of the turbocharger is pressed tightly on the rotating shaft by the shaft end nut. Under certain working conditions, such as the rotor overspeed, the compressor impeller will be deformed. Under the action of centrifugal force, the diameter of the compressor impeller becomes larger and the shaft When the size is reduced, the shaft end nut loses the pre-tightening force, causing the shaft end nut to loosen.

Method used

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  • Gas compressor impeller with elastic table

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Embodiment Construction

[0014] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0015] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a gas compressor impeller with an elastic table. The gas compressor impeller comprises a hub, a blade and the elastic table. The elastic table is connected to the left edge of the hub and is of a hollow rotation body thin wall structure, and the outer diameter of the elastic table is smaller than the diameter of an inlet of the hub; the left side of the elastic table is inwards shrunk to form a flange, and the end face of the left side of the elastic table is an elastic table compression face; the elastic table compression face is parallel to a wheel back compression face. Compared with the prior art, the gas compressor impeller with the elastic table has the advantages that the inlet of the hub of the gas compressor impeller is additionally provided with the elastictable, when the gas compressor impeller is installed, the elastic table bears most pretightening force of a nut of a shaft end, the anti-deformation capacity of the gas compressor impeller is improved, even under the overspeed condition of a rotor, change of the axial size of the gas compressor impeller is small, the nut of the shaft end cannot lose pretightening force, and the loosing fault of the nut of the shaft end is avoided.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, and in particular relates to a compressor impeller with an elastic platform. Background technique [0002] The compressor impeller of the turbocharger is pressed tightly on the rotating shaft by the shaft end nut. Under certain working conditions, such as the rotor overspeed, the compressor impeller will be deformed. Under the action of centrifugal force, the diameter of the compressor impeller becomes larger and the shaft When the size is reduced, the shaft end nut loses the pre-tightening force, causing the shaft end nut to loosen. Contents of the invention [0003] In view of this, the present invention aims to propose a compressor impeller with an elastic platform. The elastic platform is added to the inlet of the hub of the compressor impeller, so that when the compressor impeller is installed, the elastic platform shares most of the load of the shaft end nut. The pre-tightenin...

Claims

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Application Information

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IPC IPC(8): F04D29/28F04D29/62
CPCF04D29/284F04D29/624
Inventor王振彪刘畅
OwnerCHINA NORTH ENGINE INST TIANJIN