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Magnetic suspension air blower impeller and spindle connecting structure

A blower and magnetic levitation technology, which is applied to the components of the pumping device for elastic fluid, mechanical equipment, non-variable-capacity pumps, etc. State, novel structure design, effect of strong shear force

Pending Publication Date: 2019-04-12
NANTONG DART POLLRICH FAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor power of the magnetic levitation blower is 50-400kW, and the speed is between 20000-30000rpm. The existing magnetic levitation blower has a single connection mode between the impeller and the main shaft, and does not have the function of guiding air. Therefore, it is necessary to improve

Method used

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  • Magnetic suspension air blower impeller and spindle connecting structure
  • Magnetic suspension air blower impeller and spindle connecting structure

Examples

Experimental program
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Effect test

Embodiment 1

[0024] see figure 1 , the present invention provides a technical solution: a connection form between the impeller and the main shaft of a magnetic levitation blower, including an impeller 1, a motor shaft 2 and a diversion cap 3, the center of the impeller 1 is provided with a shaft hole, and the motor shaft 2 and the The pull rod forms an integrated structure, the motor shaft 2 is connected to the impeller 1 through the shaft hole, and the motor shaft 2 and the impeller 1 are connected through the impeller lock nut 4, the impeller lock nut 4 adopts a circumferential key, and the front end of the impeller 1 A diversion cap 3 is also provided, and a plurality of diversion grooves 5 are evenly distributed on the outer wall of the diversion cap 3 .

[0025] In the present invention, the diversion groove 5 has a U-shaped structure, the width of the diversion groove 5 is 10mm-20mm, and the depth is 5mm-8mm. The diversion groove adopted by the invention can evenly distribute the ai...

Embodiment 2

[0028] Embodiment two:

[0029] see Figure 1-2 , a connection form between the impeller and the main shaft of a magnetic levitation blower, including an impeller 1, a motor shaft 2 and a deflector cap 3, the center of the impeller 1 is provided with a shaft hole, and the motor shaft 2 and the tie rod form an integrated structure. The motor shaft 2 is connected to the impeller 1 through the shaft hole, and the motor shaft 2 and the impeller 1 are connected through the impeller lock nut 4, the impeller lock nut 4 adopts a circumferential key, and the front end of the impeller 1 is also provided with a diversion cap 3, A plurality of diversion grooves 5 are evenly distributed on the outer wall of the diversion cap 3 .

[0030] In the present invention, the diversion groove 5 has a U-shaped structure, the width of the diversion groove 5 is 10mm-20mm, and the depth is 5mm-8mm. The diversion groove adopted by the invention can evenly distribute the airflow field, thereby improvin...

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Abstract

The invention discloses a magnetic suspension air blower impeller and spindle connecting structure. The magnetic suspension air blower impeller and spindle connecting structure comprises an impeller,a motor shaft and a fairing cap. The center of the impeller is provided with a shaft hole. The motor shaft and a pull rod are of an integrated structure. The motor shaft penetrates through the shaft hole to be connected with the impeller. The motor shaft is connected with the impeller through a circumferential key. The front end of the impeller is further provided with the fairing cap. The outer wall of the fairing cap is uniformly provided with a plurality of flow guide grooves. The magnetic suspension air blower impeller and spindle connecting structure is novel in structure design. The impeller and the motor shaft transmit torque through the circumferential key. The pull rod and a lock nut are omitted. The fairing cap is added. The gas inflow state of the impeller is optimized. The magnetic suspension air blower impeller and spindle connecting structure is beneficial to uniform distribution of gas inflow fields.

Description

technical field [0001] The invention relates to the technical field of a magnetic levitation blower, in particular to a connection form between an impeller and a main shaft of a magnetic levitation blower. Background technique [0002] Magnetic levitation centrifugal blower is a kind of turbine equipment using magnetic levitation bearing. Its main structure is that the blower impeller is directly installed on the extension end of the click shaft, and the rotor is suspended vertically on the active magnetic bearing controller. It does not need a speed increaser and a coupling, and realizes a single-unit high-speed centrifugal blower directly driven by a high-speed motor and regulated by a frequency converter. This type of fan adopts an integrated design, and its high-speed motor, frequency converter, magnetic bearing control system and microprocessor control panel are all designed and integrated in an integrated manner. Its core is magnetic suspension bearing and permanent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/28F04D29/30F04D29/62
CPCF04D29/281F04D29/263F04D29/30F04D29/626
Inventor 郭朋华缪小军郭艳丽
Owner NANTONG DART POLLRICH FAN
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