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Combined impeller air compressor

An air compressor and combined technology, applied in mechanical equipment, electric components, electromechanical devices, etc., can solve the problems of untimely motor heat dissipation, limited motor speed, poor heat dissipation effect, etc., to improve efficiency, reduce friction, Achieving the effect of heat dissipation

Active Publication Date: 2022-04-19
XINLEI COMPRESSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor is cooled by the internal and external circulation cooling system to ensure the stable operation of the motor. The utility model has the advantages of simple structure, safe and convenient use, and adopts the advantages of fully shielded structure, no leakage, simple maintenance in the later period, and low cost of use, and uses air flotation through the circulation pump Bearing technology can achieve high speed and is suitable for air compression occasions with small volume and high compression ratio; but the above structure has the following disadvantages: the heat dissipation effect is not good, and as the speed of the air compressor increases, due to the limited internal and external circulation channels, it will make The heat dissipation of the motor is not timely, which leads to the risk of motor burnout and limits the speed of the motor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: refer to Figure 1 to Figure 4 , a combined impeller air compressor, comprising:

[0048] The motor assembly 1 provides power for the air compressor; the motor assembly 1 includes a housing 11 and a rotating shaft 12, and the rotating shaft 12 is installed in the housing 11; the two ends of the rotating shaft 12 are respectively provided with a first end cover 2 and a second end cover 13. The first end cover 2 is connected to the housing 11 through bolts, and the second end cover 13 is a mesh shell cover, which is conducive to heat dissipation;

[0049] The impeller 3 includes a centrifugal impeller 31 and an axial impeller 32. The centrifugal impeller 31 is provided with a through hole 311 along the axial direction, and centrifugal blades 312 are arranged in the circumferential direction of the centrifugal impeller 31. The centrifugal impeller 31 is arranged in the through hole 311, and the axial impeller 32 Axial blades 32 are arranged in the circumfere...

Embodiment 2

[0060] Embodiment 2: refer to Figure 5 , this embodiment is basically the same as Embodiment 1, the difference is that an annular sealing disc 5 is arranged between the impeller 3 and the first end cover 2, the sealing disc 5 is connected with the first end cover 2 by screws, and the sealing disc 5 is provided with a groove 51 matching with the bottom end surface of the impeller 3 .

[0061] When the air compressor is running, because the impeller 3 needs to rotate at a high speed, the impeller 3 cannot contact with parts other than the rotating shaft 12. In order to prevent the air from flowing between the first end cover 2 and the volute 4 Therefore, a sealing disc 5 is provided to prevent air from leaking out from the gap between the first end cover 12 and the volute 4 through the groove 51 on the sealing disc 5 and the groove 51 matched with the end face of the impeller 3; Air compressor efficiency.

[0062] The groove 51 is provided with a plurality of sealing ring gea...

Embodiment 3

[0064] Embodiment 3: refer to Figure 6 and Figure 7 , the structure of this implementation is basically the same as that of Embodiment 1 or Embodiment 2, except that:

[0065] The first end cap 2 includes:

[0066] The first end surface 21 is matched with the housing 11, and a first protruding ring 211 which can be matched with the inner diameter of the housing 11 is provided in the circumferential direction;

[0067] The second end surface 22 is matched with the volute 4, and the second protruding ring 221 and the third protruding ring 222 are arranged in the circumferential direction;

[0068] The convex plate 23 protrudes from both ends of the first end surface 21 and the second end surface 22 along the axial direction of the first end cover 2 . The convex plate 23 is provided with a through hole 231 , and the rotating shaft 12 passes through the through hole 231 .

[0069] The first end cover 2 is a part connecting the housing 11 and the impeller 3, and the first prot...

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Abstract

The invention discloses a combined impeller air compressor, and aims to solve the problems that the heat dissipation effect of an air compressor in the prior art is poor, and the rotating speed of a motor is limited along with the increase of the rotating speed of the air compressor. According to the technical scheme, a motor assembly provides power for the air compressor; the motor assembly comprises a shell and a rotating shaft, and the rotating shaft is arranged in the shell in a penetrating mode. A first end cover and a second end cover are respectively arranged at two ends of the rotating shaft; the impeller comprises a centrifugal impeller and an axis impeller, a through hole is formed in the centrifugal impeller in the axis direction, the centrifugal impeller is arranged in the through hole, axis blades are arranged in the circumferential direction of the axis impeller, and the axis blades are connected with the inner wall of the through hole; the centrifugal impeller is connected with the rotating shaft; the centrifugal impeller and the axis impeller are driven by the motor to rotate at the same time, and the motor assembly is cooled through the axis impeller.

Description

technical field [0001] The invention relates to the technical field of air compressors, more specifically, it relates to a combined impeller air compressor. Background technique [0002] An air compressor refers to a compressor that uses gas as a medium. The air compressor driven by a motor is a device used to compress gas. Air compressors are similar in construction to water pumps. The speed of the air compressor is directly related to the size of the exhaust pressure it generates. Therefore, in order to increase the exhaust pressure of the air compressor, how to increase the speed of the air compressor is a key point. [0003] Chinese Patent Announcement No. CN208294790U, the announcement date is December 28, 2018. The name of the utility model is a fully shielded high-speed centrifugal air compressor. The application discloses a fully shielded high-speed centrifugal air compressor. The utility model Disclosed is a fully shielded high-speed centrifugal air compressor, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/32F04D29/58
CPCH02K5/04H02K5/24H02K9/06H02K5/207F04D29/406F04D29/586
Inventor 韩春江钟仁志袁军
Owner XINLEI COMPRESSOR CO LTD
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