CN212376898U

CN212376898U - Blower of centrifugal vacuum pump of static pressure gas bearing permanent magnet synchronous motor

Info

Publication number: CN212376898U
Application number: CN202021179925.4U
Authority: CN
Inventors: 蒋旭光; 周彪
Original assignee: Liyang Fusibao High Speed Machinery Co ltd
Current assignee: Liyang Fusibao High Speed Machinery Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-01-19
Anticipated expiration: 2030-06-23

Abstract

The utility model discloses a static pressure gas bearing PMSM centrifugal vacuum pump air blower, including spiral case, impeller, front axle bearing, journal bearing, electricity shell, motor stator, rotor, rear axle bearing, thrust bearing and inlet port, the rotor has cup jointed motor stator around outside central point, and the electricity shell has been cup jointed in the motor stator outside, the radial bearing has all been cup jointed in the rotor outside both ends outside, two the journal bearing outside has cup jointed front axle bearing and rear axle bearing respectively, the thrust bearing has been cup jointed in rear axle bearing end and rotor outside position department, the inlet port has all been seted up on front axle bearing and the rear axle bearing, the impeller is installed in front axle bearing outer end and rotor outside position department, and the spiral case is installed in the impeller outside; the utility model discloses, realized static pressure gas bearing anchor ring throttle PMSM at the application of centrifugal blower and vacuum pump trade, it is littleer than the volume with traditional mode, environmental protection more, energy-conservation.

Description

Blower of centrifugal vacuum pump of static pressure gas bearing permanent magnet synchronous motor

Technical Field

The utility model relates to a centrifugal vacuum pump and air-blower trade equipment field specifically are static pressure gas bearing PMSM centrifugal vacuum pump air-blower.

Background

The static pressure gas bearing is hardly applied to the centrifugal vacuum pump/blower industry due to the bearing capacity and rigidity, and is generally applied to the high-speed electric spindle industry, so that the static pressure gas bearing permanent magnet synchronous motor centrifugal vacuum pump blower is necessary to design aiming at the defect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a static pressure gas bearing PMSM centrifugal vacuum pump air-blower has realized the application of static pressure gas bearing anchor ring orifice throttle PMSM at centrifugal air-blower and vacuum pump trade, and is littleer than the volume with traditional mode, environmental protection more, energy-conservation.

The purpose of the utility model can be realized by the following technical scheme:

static pressure gas bearing PMSM centrifugal vacuum pump air-blower, including spiral case, impeller, front axle bearing, journal bearing, electricity shell, motor stator, rotor, rear axle bearing, thrust bearing and inlet port, the rotor has cup jointed motor stator around outside center end, just the electricity shell has been cup jointed in the motor stator outside, journal bearing, two have all been cup jointed in the rotor outside both ends outside the journal bearing outside has cup jointed front axle bearing and rear axle bearing respectively, thrust bearing has been cup jointed in rear axle bearing end and rotor outside position department, the inlet port has all been seted up on front axle bearing and the rear axle bearing, the impeller is installed to outer end of front axle bearing and rotor outside position department, just the spiral case is installed in the impeller outside.

The utility model has the advantages that: the gas enters the front bearing seat and the rear bearing seat and then enters the radial bearing and the thrust bearing to support the rotor to suspend in the air, and after the rotor is electrified, the rotor is driven by the motor stator to rotate and drag the impeller to rotate together, so that the application of the static pressure gas bearing ring surface throttling permanent magnet synchronous motor in the industries of centrifugal blowers and vacuum pumps is realized, and compared with the traditional mode, the static pressure gas bearing ring surface throttling permanent magnet synchronous motor is smaller in size, more environment-friendly and energy-saving.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall internal structure of the present invention;

in the figure: 1. a volute; 2. an impeller; 3. a front bearing seat; 4. a radial bearing; 5. an electrical housing; 6. a motor stator; 7. a rotor; 8. a rear bearing seat; 9. a thrust bearing; 10. and (4) air inlet holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, a centrifugal vacuum pump blower of a static pressure gas bearing permanent magnet synchronous motor, which comprises a volute 1, an impeller 2, a front bearing seat 3, a radial bearing 4, an electric shell 5, a motor stator 6, a rotor 7, a rear bearing seat 8, a thrust bearing 9 and an air inlet hole 10, the motor stator 6 is sleeved around the outer side center end of the rotor 7, the electric shell 5 is sleeved outside the motor stator 6, the radial bearing 4 is sleeved outside both ends of the rotor 7, the front bearing seat 3 and the rear bearing seat 8 are respectively sleeved outside two radial bearings 4, the thrust bearing 9 is sleeved at the end of the rear bearing seat 8 and the outer side position of the rotor 7, the air inlet hole 10 is respectively arranged on the front bearing seat 3 and the rear bearing seat 8, the impeller 2 is installed at the outer end of the front bearing seat 3 and the outer side position of the.

The utility model discloses a theory of operation: the gas enters the front bearing seat 3 and the rear bearing seat 8 and then enters the radial bearing 4 and the thrust bearing 9 to lift the rotor 7, the rotor is suspended in the air, the rotor 7 is driven to rotate through the motor stator 6 after being electrified, and the impeller 2 is dragged to rotate together, so that the work of the permanent magnet synchronous motor is realized, the application of the static pressure gas bearing ring surface throttling permanent magnet synchronous motor in the industries of centrifugal blowers and vacuum pumps is realized, and compared with the traditional mode, the permanent magnet synchronous motor is smaller in size, more environment-friendly and energy-saving.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A centrifugal vacuum pump blower of a static pressure gas bearing permanent magnet synchronous motor is characterized by comprising a volute (1), an impeller (2), a front bearing seat (3), radial bearings (4), an electric shell (5), a motor stator (6), a rotor (7), a rear bearing seat (8), thrust bearings (9) and air inlet holes (10), wherein the motor stator (6) is sleeved around the outer center end of the rotor (7), the electric shell (5) is sleeved outside the motor stator (6), the radial bearings (4) are sleeved outside the outer two ends of the rotor (7), the front bearing seat (3) and the rear bearing seat (8) are respectively sleeved outside the two radial bearings (4), the thrust bearings (9) are sleeved at the end of the rear bearing seat (8) and the outer side of the rotor (7), the air inlet holes (10) are respectively formed in the front bearing seat (3) and the rear bearing seat (8), impeller (2) are installed to front bearing seat (3) outer end and rotor (7) outside position department, just spiral case (1) are installed to impeller (2) outside.