CN217898266U - Air compressor - Google Patents

Abstract

The utility model discloses an air compressor machine, inhale the subassembly including casing, rotor part and magnetism, rotor part normal running fit is in the casing, rotor part includes the impeller, magnetism inhales the subassembly and is used in rotor part with form magnetism between the casing and inhale the effort, magnetism is inhaled the effort and is suitable for offset when the impeller rotates the axial force of rotor part is in order to avoid the impeller with the scraping of cutting of casing is rubbed. The embodiment of the utility model provides an in the air compressor machine, the axial force that produces when can offsetting the impeller rotation can effectively avoid scraping of impeller and spiral case, and stability when making rotor part rotatory simultaneously is better, and is better to the protecting effect of unit, can improve the life of air compressor machine.

Description

Air compressor

Technical Field

The utility model relates to an air compressor machine technical field specifically, relates to an air compressor machine.

Background

The radial air bearing is used as a support for occasions requiring clean air sources, an unbalanced axial force often exists in the air compressor, the unbalanced axial force can reduce the gap between the impeller and the volute, the impeller and the volute are scratched and even damaged, the shafting vibration is increased, the unit cannot normally work, and even the unit is damaged.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a provide an air compressor machine that is good to turbine, spiral case protecting effect.

The utility model discloses air compressor machine, inhale the subassembly including casing, rotor part and magnetism, rotor part normal running fit is in the casing, rotor part includes the impeller, magnetism inhales the subassembly and is used in rotor part with form magnetism between the casing and inhale the effort, magnetism is inhaled the effort and is suitable for offset when the impeller rotates the axial force of rotor part is in order to avoid the impeller with the scraping of casing.

The embodiment of the utility model provides an in the air compressor machine, the axial force that produces when can offsetting the impeller rotation can effectively avoid scraping of impeller and spiral case, and stability when making rotor part rotatory simultaneously is better, and is better to the protecting effect of unit, can improve the life of air compressor machine.

In some embodiments, the magnetically attractive assembly includes a first member disposed on the rotor portion and a second member disposed on the housing, and the magnetically attractive force is adapted to be generated between the first member and the second member.

In some embodiments, the magnetically attractive assembly includes a resilient member that acts between the first member and the second member to resiliently reduce wear of the first member and the second member.

In some embodiments, the resilient member is provided with a first protrusion protruding towards the first member and adapted to be in point contact with the first member, and/or the first member is provided with a second protrusion protruding towards the resilient member and adapted to be in point contact with the resilient member.

In some embodiments, the rotor portion includes a shaft, the impeller is disposed at one end of the shaft, and the first member is disposed at the other end of the shaft.

In some embodiments, the shaft body is provided with a groove, the first member fitting within the groove.

In some embodiments, the first member includes an annular flange that projects toward an outer peripheral side of the first member and abuts an end portion of the shaft body.

In some embodiments, the first member is provided with a ring groove, and the inner wall of the groove is provided with an annular protrusion in clamping fit with the ring groove.

In some embodiments, the air compressor includes a stator portion, an annular cavity is disposed within the housing, the stator portion is assembled within the annular cavity, and the stator portion is adapted to drive the rotor portion to rotate.

In some embodiments, the resilient member is provided with a wear layer.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Reference numerals:

a housing 1; a volute 11; an annular cavity 12;

a rotor portion 2; an impeller 21; a shaft body 22; an annular projection 23;

a magnetic attraction component 3; a first piece 31; the second projecting portion 311; an annular flange 312; a second piece 32; an elastic member 33; the first projection 331;

a stator portion 4; and a radial air bearing 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the utility model discloses air compressor machine, including casing 1, rotor part 2 and magnetism subassembly 3 of inhaling, rotor part 2 normal running fit is in casing 1, and rotor part 2 includes impeller 21, and magnetism subassembly 3 of inhaling is used in rotor part 2 and casing 1 between and forms magnetism and inhales the effort, and magnetism is inhaled the effort and is suitable for when impeller 21 rotates to offset rotor part 2's axial force and scratch in order to avoid impeller 21 and casing 1's cutting.

Specifically, the right-hand member of casing 1 can be including spiral case 11, impeller 21 can normal running fit in spiral case 11, when impeller 21 carries out high-speed rotation, can make impeller 21 and rotor part 2 have the axial force of a right direction, magnetism subassembly 3 is inhaled can be established in the left side of rotor part 2, can produce the magnetic attraction effort of a left direction to rotor part 2, can control magnetism and inhale the axial force that the effort is greater than or equal to right direction all the time, so that this air compressor machine during operation, rotor part 2 can not take place the displacement of right direction.

The embodiment of the utility model provides an in the air compressor machine, inhale subassembly 3 through setting up magnetism, magnetism is inhaled subassembly 3 and can be exerted magnetism to rotor part 2 and inhale the effort, can offset the axial force that rotor part 2 produced when impeller 21 rotates, can effectively avoid scraping of impeller 21 and spiral case 11 and rub, and conveniently utilize the space in the air compressor machine, can reduce the holistic size of equipment, and convenient to process uses, can make stability when rotor part 2 rotates and the protecting effect to the unit better simultaneously, can improve the life of air compressor machine.

In some embodiments, the magnetically attractive assembly 3 comprises a first member 31 and a second member 32, the first member 31 being provided to the rotor portion 2, the second member 32 being provided to the housing 1, and the first member 31 and the second member 32 being adapted to generate a magnetically attractive force therebetween.

Specifically, as shown in fig. 1, the first member 31 may be fixed at the left end of the rotor portion 2, the second member 32 may be located at the left side of the first member 31 and fixedly connected to the housing 1, and a magnetic attraction effect may be generated between the first member 31 and the second member 32 so as to apply a magnetic attraction force to the rotor portion 2 in the left direction, where the first member 31 may be a magnetic conductive block and the second member 32 may be a permanent magnet, or the first member 31 may be a permanent magnet and the second member 32 may be a magnetic conductive block, and the magnetic attraction force to the magnetic conductive block by the permanent magnet may counteract an axial force in the right direction when the rotor portion 2 rotates.

It is understood that in some other embodiments, the first member 31 and the second member 32 may be configured as permanent magnets, where the magnetic poles at two opposite sides of the first member 31 and the second member 32 are different, and a magnetic attraction force may be generated between the two permanent magnets to counteract the rightward axial force when the rotor portion 2 rotates.

In some embodiments, the magnetically attractive assembly 3 includes a resilient member 33, the resilient member 33 acting between the first and second members 31, 32 to resiliently reduce wear of the first and second members 31, 32.

Specifically, as shown in fig. 1, the elastic member 33 may be made of a high wear-resistant material and fixed to the right side surface of the second member 32, the first member 31 and the second member 32 may be spaced apart, and when the second member 32 made of a permanent magnet adsorbs the first member 31 made of a magnetic conductive block and rotates relatively, the elastic member 33 may protect the second member 32.

In addition, when the first member 31 is a permanent magnet and the second member 32 is a magnetic conductive block, the elastic member 33 may be fixedly connected to the left side surface of the first member 31, and at this time, the elastic member 33 may protect the first member 31 made of the permanent magnet.

Because when in actual use, need adopt thinner flexure strip, can be so that the hardness of flexure strip is higher than the hardness of magnetic conduction piece, can reduce the friction loss of flexure strip relatively, improve the life of flexure strip to can prolong the life of this air compressor machine.

It is understood that, in other embodiments, when the first member 31 and the second member 32 are both permanent magnets, the elastic member 33 may be disposed on the inner side surfaces of the first member 31 and the second member 32, so as to protect the first member 31 and the second member 32.

In some embodiments, the elastic member 33 is provided with a first projection 331, the first projection 331 projects toward the first member 31 and is adapted to be in point contact with the first member 31, the first member 31 is provided with a second projection 311, and the second projection 311 projects toward the elastic member 33 and is adapted to be in point contact with the elastic member 33.

Specifically, as shown in fig. 1, when the first member 31 is a magnetic conductive block, the second member 32 is a permanent magnet, the elastic sheet disposed on the right side of the second member 32 may include a first protruding portion 331 protruding to the right, and the second member 32 may include a second protruding portion 311 protruding to the left, and the first protruding portion 331 may be disposed opposite to the second protruding portion 311 and may realize a point contact, so that when the rotor portion 2 rotates relative to the housing 1, the friction loss between the second member 32 and the elastic member 33 may be reduced, where both the first protruding portion 331 and the second protruding portion 311 may be spherical surfaces.

It is understood that in other embodiments, the first member 31 and the elastic member 33 may be in a point contact state when the first member 31 and the elastic member 31 rotate relatively, and the friction loss may be reduced.

In some embodiments, the rotor portion 2 comprises a shaft body 22, the impeller 21 is provided at one end of the shaft body 22, and the first member 31 is provided at the other end of the shaft body 22. Specifically, as shown in fig. 1, the shaft body 22 is horizontally disposed in the left-right direction, the impeller 21 may be installed at the right end of the shaft body 22, and the first member 31 may be installed at the left end of the shaft body 22.

In some embodiments, the shaft body 22 is provided with a groove, and the first member 31 fits in the groove. Specifically, as shown in fig. 1, a groove may be opened at the left end of the shaft body 22, and the first member 31 may be mounted at the groove in an interference fit manner.

In some embodiments, the first member 31 includes an annular flange 312, the annular flange 312 protrudes toward the outer periphery of the first member 31 and is attached to the end of the shaft body 22, the first member 31 is provided with an annular groove, and the inner wall of the groove is provided with an annular protrusion 23 which is in snap fit with the annular groove. Specifically, as shown in fig. 1, the annular flange 312 of the first member 31 may protrude to the outside of the groove, the engagement between the annular groove and the annular protrusion 23 may improve the connection effect between the first member 31 and the shaft body 22, and the annular groove and the annular flange 312 on the first member 31 may facilitate the installation connection between the first member 31 and the shaft body 22.

In some embodiments, the air compressor comprises a stator part 4, an annular cavity 12 is provided in the housing 1, the stator part 4 is assembled in the annular cavity 12, and the stator part 4 is adapted to drive the rotor part 2 to rotate. Specifically, as shown in fig. 1, the stator portion 4 installed in the annular cavity 12 may surround the shaft body 22, and a radial air bearing 5 may be further disposed on the outer circumferential side of the shaft body 22, so that the stator portion 4 may drive the rotor portion 2, such as the shaft body 22 and the impeller 21, to rotate during operation.

In some embodiments, the elastic member 33 is provided with a wear-resistant layer, and specifically, as shown in fig. 1, a wear-resistant layer formed by ceramic, alloy, oxide, or the like may be sprayed on the right side surface of the elastic member 33 to improve the wear-resistant performance of the elastic member 33.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. An air compressor machine, its characterized in that includes:

a housing;

a rotor portion rotationally engaged within the housing, the rotor portion including an impeller;

the subassembly is inhaled to magnetism, the subassembly effect is inhaled to magnetism is in rotor part with form magnetism between the casing and inhale the effort, magnetism is inhaled the effort and is suitable for the impeller offsets when rotating rotor part's axial force is in order to avoid the impeller with scrape and rub of casing.

2. The air compressor of claim 1, wherein the magnetic assembly comprises a first member and a second member, the first member is disposed on the rotor portion, the second member is disposed on the housing, and the first member and the second member are adapted to generate the magnetic force therebetween.

3. The air compressor of claim 2, wherein the magnetically attractive assembly includes a resilient member acting between the first member and the second member to resiliently reduce wear of the first member and the second member.

4. The air compressor of claim 3, wherein said elastic member is provided with a first projection projecting toward said first member and adapted to come into point contact with said first member;

and/or the first piece is provided with a second bulge which is convex towards the elastic piece and is suitable for the point contact of the elastic piece.

5. The air compressor as claimed in claim 2, wherein said rotor portion includes a shaft body, said impeller is provided at one end of said shaft body, and said first member is provided at the other end of said shaft body.

6. The air compressor of claim 5, wherein the shaft body is provided with a groove, and the first member is fitted in the groove.

7. The air compressor of claim 6, wherein the first member includes an annular flange that projects toward an outer peripheral side of the first member and abuts an end portion of the shaft body.

8. The air compressor as claimed in claim 6, wherein the first member has a ring groove, and an inner wall of the groove has an annular protrusion engaged with the ring groove.

9. The air compressor as claimed in claim 1, wherein a stator portion is included, an annular chamber is provided in said housing, said stator portion is assembled in said annular chamber, and said stator portion is adapted to drive said rotor portion in rotation.

10. The air compressor of claim 3, wherein the elastic member is provided with a wear-resistant layer.

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