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Air compressor with small-gap type ring matching structure and type ring machining method

A technology that matches the structure and processing method, and is applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc., to achieve the effects of low processing cost, increased efficiency, and reduced noise

Active Publication Date: 2021-10-29
XINLEI COMPRESSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the air compressor still does not solve the above problems

Method used

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  • Air compressor with small-gap type ring matching structure and type ring machining method
  • Air compressor with small-gap type ring matching structure and type ring machining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 and figure 2 As shown, an air compressor with a small-gap ring fit structure includes a drive motor 1, a volute 2, an impeller 3 and a ring 4, the volute 2 is fixed to the casing of the drive motor 1, and the impeller 3 and the ring 4 Arranged in the volute 2, the impeller 3 is arranged inside the type ring 4, the impeller 3 is coaxially fixed with the output shaft of the drive motor 1, the type ring 4 is fixed with the volute 2, and the volute 2 is provided with a fairing 5, The fairing 5 is coaxially fixed with the impeller 3 . There is a gap between the inner surface of the type ring 4 and the outer surface of the impeller 3, the width of the gap is less than 0.3 mm, and the material of the type ring 4 is nylon. The impeller 3 is provided with an arc-shaped air guide groove 3.1, the inlet size of the arc-shaped air guide groove 3.1 is larger than the outlet size of the arc-shaped air guide groove 3.1, and the inner size of the arc-shaped air guide gr...

Embodiment 2

[0034] A method for processing an air compressor ring, comprising the following steps:

[0035] a. Rough machining: According to the final size of the ring 4, use the machine tool for rough machining, and reserve a machining allowance;

[0036] b. Sizing installation: Install the type ring 4 on the setting polishing equipment. The setting polishing equipment is designed according to the size of the air compressor. The setting polishing equipment is provided with a polishing wheel. The impeller 3 is the same, in the setting polishing equipment, the type ring 4 is installed opposite to the polishing wheel, in the air compressor, the type ring 4 is installed opposite to the impeller 3;

[0037]c. Shape processing: start the shape polishing equipment, use the polishing wheel to carry out shape processing on the inner surface of the type ring 4, and remove the type ring 4 after the shape processing is completed; polishing particles;

[0038] d. Groove processing: on the inner sur...

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Abstract

The invention discloses an air compressor with a small-gap type ring matching structure and a type ring machining method. The air compressor comprises a driving motor, a volute, an impeller and a type ring, wherein the volute is fixed to a shell of the driving motor, and the impeller and the type ring are arranged in the volute; the impeller is arranged on the inner side of the type ring, and the impeller is coaxially fixed to an output shaft of the driving motor; the type ring is fixed to the volute; a gap is formed between the inner surface of the type ring and the outer surface of the impeller, and the width of the gap is smaller than 0.3 mm; and the type ring is made of high polymer materials. According to the air compressor with the small-gap type ring matching structure and the type ring machining method, under the condition that the machining cost is not increased, the gap between the inner surface of the type ring and the outer surface of the impeller can be designed to be smaller, and the efficiency of the air compressor is improved.

Description

technical field [0001] The invention relates to the technical field of air compressors, in particular to an air compressor with a small-gap type ring fitting structure and a processing method for the type rings. Background technique [0002] The principle of the centrifugal air compressor is that the impeller drives the gas to rotate at high speed, so that the gas generates centrifugal force. Due to the diffusion flow of the gas in the impeller, the flow rate and pressure of the gas after passing through the impeller are increased, and compressed air is continuously produced. . In order to ensure that the impeller will not collide with the external structure during operation, a certain gap needs to be set between the impeller and the ring outside the impeller. The higher the efficiency of the air compressor, the smaller the gap. The dimensional accuracy requirements and installation accuracy requirements of the impeller and the ring The higher the value, the higher the manu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/10F04D29/02F04D29/08F04D29/42F04D29/66B23P15/00
CPCF04D17/10F04D29/4206F04D29/023F04D29/083F04D29/663F04D29/668B23P15/00
Inventor 钟仁志袁军韩春江
Owner XINLEI COMPRESSOR CO LTD
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