CN216867009U

CN216867009U - Oil-free vortex air compressor

Info

Publication number: CN216867009U
Application number: CN202121696352.7U
Authority: CN
Inventors: 付兴旺
Original assignee: Shanghai Hanbell Precise Machinery Co ltd
Current assignee: Shanghai Hanbell Precise Machinery Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-07-01
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses an oil-free vortex air compressor which comprises a movable vortex plate assembly, a power assembly and a cooling assembly, wherein the power assembly comprises a stator, a rotor and a main shaft, the stator is sleeved on the rotor and used for driving the rotor to rotate, the rotor is connected to the outer peripheral surface of the main shaft, and two ends of the main shaft are respectively connected to the movable vortex plate assembly and the cooling assembly. The driving rotor and the main shaft are directly driven to move the vortex disc assembly to do horizontal rotation movement through the stator and the rotor, and parts such as an external motor, a motor belt wheel, a belt, a compressor belt wheel and the like are eliminated, so that the number of the parts of the oil-free vortex air compressor is reduced, the weight, the volume and the production cost are reduced, and the occupied space is smaller.

Description

Oil-free vortex air compressor

Technical Field

The utility model relates to the technical field of scroll compressors, in particular to an oil-free scroll air compressor.

Background

An oil-free scroll air compressor is a mechanical device that obtains compressed air using the principles of scroll mechanics. The operation characteristic is that the movable scroll does revolution translation around the fixed scroll under the drive of the driving shaft, and the movable scroll can not rotate around the geometric center (namely the movable scroll can not rotate).

As shown in fig. 1, in the oil-free scroll air compressor of the prior art, an external motor is coupled to a compressor pulley 1 'through a belt, the compressor pulley 1' will drive a main shaft 2 'to rotate, the main shaft 2' is supported in a bearing seat 4 'through a bearing 3', and the rotating main shaft 2 'drives a movable scroll 5' to perform an orbital translation. However, the technical scheme has the defects of more parts and large occupied space of the whole system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides an oil-free scroll air compressor.

The utility model is realized by the following technical scheme:

the utility model provides an oilless vortex air compressor, its is including moving vortex disk assembly, power component and cooling module, power component includes stator, rotor and main shaft, the stator cover is located the rotor is used for the drive the rotor is rotatory, the rotor connect in on the outer peripheral face of main shaft, the both ends of main shaft connect respectively in move vortex disk assembly with cooling module.

Further, oil-free vortex air compressor still includes casing and static scroll, power component still includes first bearing frame, first bearing frame with the static scroll pass through the fastener respectively connect in the both sides of casing, the stator connect in the first bearing frame.

Further, the power assembly further comprises a second bearing seat connected to the first bearing seat, the first bearing seat is connected to the outer peripheral surface of the main shaft through a first bearing, the second bearing seat is connected to the outer peripheral surface of the main shaft through a second bearing, and the rotor is located between the first bearing and the second bearing.

Further, the first bearing has grease;

and/or the second bearing has grease.

Furthermore, the first bearing seat is made of gray iron or nodular iron;

or the first bearing seat is made of aluminum alloy; the bearing fixing ring is arranged in the first bearing seat and located between the first bearing seat and the first bearing, and the bearing fixing ring is made of gray iron or nodular cast iron.

Further, a third bearing is provided between the orbiting scroll assembly and the housing.

Further, the rotor has auxiliary weights at both ends in the axial direction of the rotor.

Furthermore, the material of the auxiliary balance weight is copper or copper alloy.

Further, the cooling assembly comprises a centrifugal fan and an air guide cover, the centrifugal fan is arranged in the air guide cover, and the spindle is connected with the axis of the centrifugal fan.

Further, the stator is a permanent magnet.

The utility model has the beneficial effects that: the driving rotor and the main shaft are directly driven to move the vortex disc assembly to do horizontal rotation movement through the stator and the rotor, and parts such as an external motor, a motor belt wheel, a belt, a compressor belt wheel and the like are eliminated, so that the number of the parts of the oil-free vortex air compressor is reduced, the weight, the volume and the production cost are reduced, and the occupied space is smaller.

Drawings

Fig. 1 is a partial internal structural view of an oil-free scroll air compressor of the prior art.

Fig. 2 is a schematic view of an internal structure of an oil-free scroll air compressor according to an embodiment of the present invention.

Fig. 3 is a schematic view of the internal structure of the rotor according to the embodiment of the present invention.

Description of the reference numerals of the background art:

compressor pulley 1'

Main shaft 2'

Bearing 3'

Bearing pedestal 4'

Movable scroll 5'

Description of the specific embodiments with reference numbers:

power assembly 1

Stator 11

Rotor 12

Auxiliary balance weight 121

Main shaft 13

First bearing seat 14

Second bearing block 15

First bearing 16

Second bearing 17

Bearing retainer ring 18

Cooling module 2

Centrifugal fan 21

Wind scooper 22

Orbiting scroll assembly 3

Static scroll 4

Housing 5

Third bearing 51

Detailed Description

The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the utility model may be practiced.

As shown in fig. 2 and 3, the present embodiment discloses an oil-free scroll air compressor, which includes a power assembly 1, a cooling assembly 2, a movable scroll assembly 3, a fixed scroll 4 and a housing 5, wherein the power assembly 1 includes a stator 11, a rotor 12 and a main shaft 13, the stator 11 is sleeved on the rotor 12 and is used for driving the rotor 12 to rotate, the rotor 12 is connected to the outer circumferential surface of the main shaft 13, and two ends of the main shaft 13 are respectively connected to the movable scroll assembly 3 and the cooling assembly 2.

Power assembly 1 drives rotor 12 to rotate through stator 11 and rotor 12, and drives rotor 12 and main shaft 13 to directly drive orbiting scroll assembly 3 to make translational motion. In the present embodiment, orbiting scroll assembly 3 has orbiting scroll, driving disk, roller bearing and rotation-proof small shaft, and forms a compression chamber in meshing engagement with fixed scroll 4 to perform compression and discharge of gas. The power assembly 1 is used for driving the movable scroll disk assembly 3 to do horizontal rotation movement, and parts such as an external motor, a motor belt wheel, a belt and a compressor belt wheel are omitted, so that the number of the parts of the oil-free scroll air compressor is reduced, the weight, the volume and the production cost are reduced, and the occupied space is smaller.

Power assembly 1 further includes a first bearing housing 14, first bearing housing 14 and fixed scroll 4 are coupled to both sides of casing 5 by fasteners, respectively, and stator 11 is coupled within first bearing housing 14. By integrating the stator 11, the rotor 12 and the main shaft 13 in the first bearing seat 14, the number of parts of the oil-free scroll air compressor is reduced, the structure is compact, the weight, the volume and the production cost are reduced, and the stability is high. Wherein the stator 11 is a permanent magnet.

The power assembly 1 further includes a second bearing housing 15, the second bearing housing 15 is connected to the first bearing housing 14, the first bearing housing 14 is connected to the outer peripheral surface of the main shaft 13 through a first bearing 16, the second bearing housing 15 is connected to the outer peripheral surface of the main shaft 13 through a second bearing 17, and the rotor 12 is located between the first bearing 16 and the second bearing 17. First bearing frame 14 and second bearing frame 15 are installed through first bearing 16 and second bearing 17 respectively and are set up on main shaft 13, and stator 11 and rotor 12 all are located between first bearing 16 and second bearing 17 for the structure is compacter, has further lightened weight, volume and manufacturing cost, and power component 1's stability is higher.

The first bearing 16 may have grease. The second bearing 17 may have grease. Wherein, the grease can be high temperature grease.

The material of the first bearing seat 14 may be gray iron or nodular iron. Of course, the material of the first bearing seat 14 may also be aluminum alloy; the first bearing seat 14 has a bearing retainer ring 18 therein, the bearing retainer ring 18 is located between the first bearing seat 14 and the first bearing 16, and the bearing retainer ring 18 is made of gray iron or nodular iron.

Third bearing 51 is provided between orbiting scroll member 3 and housing 5. Casing 5 is fastened to orbiting scroll assembly 3 by fasteners and coupled to orbiting scroll assembly 3 by a plurality of third bearings 51.

The rotor 12 has sub-weights 121 at both ends in the axial direction of the rotor 12. The stability of the power assembly 1 is higher through the auxiliary balance block 121, and the safety and stability of the oil-free vortex air compressor are greatly improved. The material of the sub-balance weight 121 is copper or copper alloy.

The cooling assembly 2 includes a centrifugal fan 21 and an air guide cover 22, the centrifugal fan 21 is disposed in the air guide cover 22, and the spindle 13 is connected to an axis of the centrifugal fan 21. The rotation of the main shaft 13 will drive the centrifugal fan 21 to rotate together, thereby cooling the oil-free scroll air compressor. Meanwhile, the wind scooper 22 has a protective function and a guiding function for the centrifugal fan 21.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. The utility model provides an oil-free vortex air compressor, its characterized in that, it is including moving vortex disk assembly, power pack and cooling module, power pack includes stator, rotor and main shaft, the stator cover is located the rotor is used for the drive the rotor is rotatory, the rotor connect in on the outer peripheral face of main shaft, the both ends of main shaft connect respectively in move vortex disk assembly with cooling module, oil-free vortex air compressor still includes casing and quiet vortex disk, power pack still includes first bearing, first bearing with quiet vortex disk connect respectively in the both sides of casing, the stator connect in the first bearing.

2. An oil-free scroll air compressor as claimed in claim 1, wherein the power assembly further comprises a second bearing housing connected to the first bearing housing, the first bearing housing being connected to the outer peripheral surface of the main shaft by a first bearing, the second bearing housing being connected to the outer peripheral surface of the main shaft by a second bearing, the rotor being located between the first bearing and the second bearing.

3. An oil-free scroll air compressor as claimed in claim 2, wherein the first bearing has grease;

and/or the second bearing has grease.

4. An oil-free scroll air compressor as claimed in claim 1, wherein the first bearing block is made of gray iron or nodular iron;

5. An oil-free scroll air compressor as claimed in claim 1, wherein a third bearing is provided between the orbiting scroll assembly and the housing.

6. An oil-free scroll air compressor as claimed in claim 1, wherein the rotor has secondary weights at both ends in the axial direction of the rotor.

7. An oil-free scroll air compressor as claimed in claim 6, wherein the secondary balance mass is copper or a copper alloy.

8. An oil-free scroll air compressor as claimed in claim 1, wherein the cooling assembly comprises a centrifugal fan and an air guide cover, the centrifugal fan is disposed in the air guide cover, and the main shaft is connected to an axial center of the centrifugal fan.

9. An oil-free scroll air compressor as claimed in claim 1, wherein the stator is a permanent magnet.