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Pure oil-free air suspension compressor based on horizontal shaft magnetic suspension

An air suspension and magnetic suspension technology, which is applied to the components of the pumping device for elastic fluids, mechanical equipment, machines/engines, etc. Simple, increase impact resistance, solve the effect of weak impact resistance

Active Publication Date: 2021-09-21
江苏海拓宾未来工业科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: the air suspension bearing has a fluctuating displacement in the axial direction, tangent plane or other directions due to factors such as vibration during use, and the impact resistance is weak; and the magnetic suspension bearing is expensive and complicated to control

Method used

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  • Pure oil-free air suspension compressor based on horizontal shaft magnetic suspension
  • Pure oil-free air suspension compressor based on horizontal shaft magnetic suspension
  • Pure oil-free air suspension compressor based on horizontal shaft magnetic suspension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 The shown is a pure oil-free air suspension compressor based on horizontal axis magnetic levitation, including a housing 1 fixed to the external environment, a stator 2 fixed in the housing 1 through a card slot, and a rotor movably arranged in the center of the stator 2 3. The central suspension shaft 4 running through the center of the rotor 3, and the suspension unit arranged in the housing 1 for suspending the central suspension shaft 4;

[0055] The suspension unit includes two composite suspension bearings 5 ​​respectively arranged on both sides of the stator 2 and movably connected with the central suspension shaft 4;

[0056] Such as figure 2 , 3 As shown, the composite suspension bearing 5 includes a peripheral circular support structure 50 fixedly connected to the inner wall of the housing 1, a double-layer spherical structure 51 fixedly arranged on the peripheral circular support structure 50, fixedly installed on the central suspension sh...

Embodiment 2

[0080] The difference with embodiment 1 is: as Figure 10 As shown, the central suspension rotating shaft 4 between the two third hemispherical surfaces 520 is also fixedly provided with a steel round pipe 524 connected to the fixed ring 521; the steel round pipe 524 is provided with six electromagnetic coil assemblies 512 corresponding to The permanent magnet 525.

Embodiment 3

[0082] Such as Figure 11 As shown, the end of the central suspension rotating shaft 4 is provided with an air compression volute 6; the air compression volute 6 includes a volute body 60 arranged on the housing 1, fixed at the end of the central suspension rotation shaft 4 and located inside the volute body 60 A compression turbofan 61, a detection assembly 62 arranged between the compression turbofan 61 and the inner wall of the volute body 60;

[0083] The detection assembly 62 includes a first sensor for detecting the axial displacement of the central suspension shaft 4 , and a second sensor for detecting the radial displacement.

[0084]A patch type pressure sensor is arranged in the first spherical air flow passage and the second spherical air flow passage.

[0085] The housing 1 is provided with an air-cooled heat dissipation window 10 .

[0086] Among them, the patch pressure sensor, the first sensor, and the second sensor are all electrically connected to the contro...

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Abstract

The invention relates to the technical field of air compressors, and discloses a pure oil-free air suspension compressor based on horizontal shaft magnetic suspension. The compressor comprises a shell fixed to an external environment, a stator fixedly arranged in the shell through a clamping groove, a rotor movably arranged in the center of the stator, a central suspension rotating shaft penetrating through the center of the rotor, and a suspension unit arranged in the shell and used for enabling the central suspension rotating shaft to suspend; and the suspension unit comprises two composite suspension bearings which are arranged on two sides of the stator correspondingly and are movably connected with the central suspension rotating shaft. The compressor not only can solve the problems of complex control and high manufacturing cost of the magnetic suspension bearing, but also can greatly improve the bearing capacity of the air suspension bearing, and solves the problem of weak impact resistance of the air suspension bearing in use.

Description

technical field [0001] The invention relates to the technical field of air compressors, in particular to a pure oil-free air suspension compressor based on horizontal axis magnetic suspension. Background technique [0002] The compressor is a dynamic compressor with a high-speed rotating impeller. It relies on the interaction between the rotating impeller and the airflow to increase the gas pressure, and at the same time accelerates the airflow to obtain kinetic energy. Then the airflow decelerates in the diffuser to Kinetic energy is converted to pressure energy, further increasing the pressure. Since the central shaft of the compressor usually rotates at a high speed, the traditional oil-sealed bearings have high friction and are easily damaged. Therefore, simple magnetic suspension bearings or air suspension bearings are usually used to replace traditional oil-sealed bearings to achieve oil-free suspension of the central shaft. [0003] Air suspension bearing is a bearin...

Claims

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Application Information

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IPC IPC(8): F04D29/058F04D29/42F04D29/58F04D27/00
CPCF04D29/058F04D29/4206F04D29/5853F04D27/001
Inventor 尹海日林亨俊
Owner 江苏海拓宾未来工业科技集团有限公司
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