CN212935602U

CN212935602U - Direct-connected disc type motor rotor special for air compressor

Info

Publication number: CN212935602U
Application number: CN202021922616.1U
Authority: CN
Inventors: 龙远辉; 吴斌; 郑炜
Original assignee: Fuzhou Zhongyan Electric Machinery Co Ltd
Current assignee: Fuzhou Zhongyan Electric Machinery Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-04-09
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses a special direct-connected disk type electric motor rotor of air compressor machine in electric motor rotor technical field, including reel, cyclic annular iron core and a plurality of tile shape magnet steel, the reel includes interior axle sleeve and outer solid fixed ring, connect through the spoke integral type that a plurality of circumference array form distributes between interior axle sleeve and the outer solid fixed ring, the fixed cover of cyclic annular iron core is established the outer solid fixed ring outside, it is a plurality of tile shape magnet steel is circumference array form and inlays and establish cyclic annular iron core circumference outer wall, the utility model discloses even disk type electric motor rotor has rotor province silicon steel sheet, rotor light in weight, inertia is little, rotor ventilation effect is good, the installation reliability of magnet steel is high, installation effect excellence such as good.

Description

Direct-connected disc type motor rotor special for air compressor

Technical Field

The utility model relates to an electric motor rotor technical field specifically is a special direct link dish type electric motor rotor of air compressor machine.

Background

The motor rotor is formed by embedding permanent magnets with a certain number of pole pairs on the surface of an iron core or in the iron core. The permanent magnet of the rotor has a similar effect to that of the permanent magnet used in a brush motor, and sufficient magnetism is established in the air gap of the motor. The rotor structure of the brushless dc motor mostly adopts a surface-bonded magnetic pole, also called a tile-shaped magnetic pole. The surface-pasted magnetic pole is that tile-shaped rare earth permanent magnets which are magnetized in the radial direction are pasted on the outer surface of an iron core, the air gap flux density in the form of square waves can be obtained through reasonable design, and because the magnetic pole is driven by the movement which is separated from the iron core under the action of centrifugal force when a traditional rotor rotates at a high speed, a connecting structure with enough fixed strength between the iron core and the magnetic pole is needed, in addition, the traditional rotor has the defects that the weight of the rotor is heavier, the rotational inertia is larger, the ventilation effect of the rotor is general, and the installation needs a transition.

Based on this, the utility model designs a special direct-connected disk type electric motor rotor of air compressor machine to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special direct-connected disk type electric motor rotor of air compressor machine to solve above-mentioned technical problem.

In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a special direct disk type electric motor rotor that links of air compressor machine, includes reel, cyclic annular iron core and a plurality of tile shape magnet steel, the reel includes interior axle sleeve and outer solid fixed ring, connect through the spoke integral type that a plurality of circumference array form distribute between interior axle sleeve and the outer solid fixed ring, cyclic annular iron core fixed cover is established the outer solid fixed ring outside, it is a plurality of tile shape magnet steel is circumference array form and inlays to be established cyclic annular iron core circumference outer wall.

Preferably, a key groove is formed in one side of the inner cavity of the inner shaft sleeve.

Preferably, the spokes are provided with rib structures at the periphery, and the middle section of each spoke is of a cross structure.

Preferably, the upper end surface and the lower end surface of the outer fixing ring extend outwards in the radial direction to form an end edge structure for axially limiting the annular iron core, and a plurality of arc-shaped fan blades are circumferentially distributed on the outer end surface of the end edge structure in an array manner.

Preferably, outer fixed ring's outer wall circumference array is provided with a plurality of spacing semicircle convex ridges, the inner circle wall circumference array of cyclic annular iron core be provided with a plurality of with spacing semicircle convex ridges correspond the spacing half slot of complex.

Preferably, the outer ring wall circumference array of cyclic annular iron core is provided with a plurality of forked tail magnet steel grooves, tile shape magnet steel is arc strip structure, the both sides face of tile shape magnet steel be with forked tail inclined plane structure that forked tail magnet steel inslot both sides wall agrees with.

Compared with the prior art, utility model's beneficial effect does:

the utility model discloses directly link disc type electric motor rotor includes the reel, cyclic annular iron core and a plurality of tile shape magnet steel, the reel structure has replaced partial annular iron core, can effectively save the silicon steel sheet material of cyclic annular iron core, hollow out construction has on the reel between the spoke, be favorable to reducing rotor weight and inertia, circumference array distribution is provided with a plurality of arc fan blades on the outer terminal surface of outer solid fixed ring's end edge structure, be favorable to ventilation cooling, inner shaft sleeve inner chamber one side of reel is provided with the keyway, can install with the direct cooperation of rotor pivot, need not use the transition pivot, it is convenient to assemble, the forked tail magnet steel groove of cyclic annular iron core outer wall passes through forked tail tenon fourth of the twelve earthly branches structural connection with tile shape magnet steel, can effectively bear centrifugal force, fixed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

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

FIG. 2 is a schematic cross-sectional structure of the present invention;

fig. 3 is a schematic diagram of the structure of the separation state of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-shaft disc, 11-inner shaft sleeve, 12-outer fixing ring, 13-spoke, 14-key groove, 15-arc fan blade, 16-limit semicircle convex ridge, 2-annular iron core, 21-limit semicircle groove, 22-dovetail magnetic steel groove and 3-tile-shaped magnetic steel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a technical solution: a special direct-connection disc type motor rotor for an air compressor comprises a shaft disc 1, an annular iron core 2 and a plurality of tile-shaped magnetic steels 3, wherein the shaft disc 1 is made of high-strength aluminum alloy and is formed by aluminum die casting, the shaft disc 1 comprises an inner shaft sleeve 11 and an outer fixing ring 12, the inner shaft sleeve 11 and the outer fixing ring 12 are integrally connected through a plurality of spokes 13 distributed in a circumferential array manner, the spokes 13 are provided with rib structures all around, the middle cross section of each spoke 13 is of a cross structure, the structural strength can be maximized on the premise of saving materials, the annular iron core 2 is fixedly sleeved on the outer side of the outer fixing ring 12, the tile-shaped magnetic steels 3 are embedded on the circumferential outer wall of the annular iron core 2 in a circumferential array manner, a key groove 14 is formed in one side of an inner cavity of the inner shaft sleeve 11 and can be directly matched with a rotor rotating shaft to be installed without using a transition rotating shaft, the assembling is convenient and the fixing effect is better, the end edge structure is provided with a plurality of arc-shaped fan blades 15 in a circumferential array distribution on the outer end face, when the rotor rotates highly, the arc-shaped fan blades 15 rotate along with the rotor to generate air flow, and a hollow structure formed between spokes 13 is connected in a front-back manner to facilitate ventilation and heat dissipation, the outer wall circumferential array of the outer fixing ring 12 is provided with a plurality of limiting semicircular convex ridges 16, the inner ring wall circumferential array of the annular iron core 2 is provided with a plurality of limiting semicircular grooves 21 correspondingly matched with the limiting semicircular convex ridges 16, after the annular iron core 2 is embedded and installed with the outer fixing ring 12, the rotation limiting and positioning are realized by buckling the limiting semicircular convex ridges 16 with the limiting semicircular grooves 21, the outer ring wall circumferential array of the annular iron core 2 is provided with a plurality of dovetail magnetic steel grooves 22, the tile-shaped magnetic steel 3 is of an arc-shaped strip structure, the two side faces of the tile-shaped magnetic steel 3 are dovetail slope structures matched with the two side walls of the inner cavity of, the tile-shaped magnetic steel 3 is magnetized after aluminum die casting, so that the centrifugal acting force can be effectively borne, and the fixing effect is better.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in 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.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special direct-connected disk type electric motor rotor of air compressor machine which characterized in that: including reel (1), cyclic annular iron core (2) and a plurality of tile shape magnet steel (3), reel (1) is including interior axle sleeve (11) and outer solid fixed ring (12), spoke (13) integral type through a plurality of circumference array form distributions is connected between interior axle sleeve (11) and outer solid fixed ring (12), cyclic annular iron core (2) fixed cover is established the outer solid fixed ring (12) outside, a plurality of tile shape magnet steel (3) are circumference array form and inlay and establish cyclic annular iron core (2) circumference outer wall.

2. The direct-connected disk type motor rotor special for the air compressor as claimed in claim 1, wherein: and a key groove (14) is formed in one side of the inner cavity of the inner shaft sleeve (11).

3. The direct-connected disk type motor rotor special for the air compressor as claimed in claim 1, wherein: the spoke (13) is provided with a rib structure at the periphery, and the middle section of the spoke (13) is of a cross structure.

4. The direct-connected disk type motor rotor special for the air compressor as claimed in claim 1, wherein: the upper end face and the lower end face of the outer fixing ring (12) extend outwards along the radial direction to form an end edge structure used for axially limiting the annular iron core (2), and a plurality of arc-shaped fan blades (15) are circumferentially distributed on the outer end face of the end edge structure in an array mode.

5. The direct-connected disk type motor rotor special for the air compressor as claimed in claim 1, wherein: the outer wall circumference array of outer fixed ring (12) is provided with a plurality of spacing semicircle convex ridges (16), the inner circle wall circumference array of cyclic annular iron core (2) be provided with a plurality of with spacing semicircle convex ridges (16) correspond complex spacing half slot (21).

6. The direct-connected disk type motor rotor special for the air compressor as claimed in claim 1, wherein: the outer ring wall circumference array of cyclic annular iron core (2) is provided with a plurality of forked tail magnetic steel grooves (22), tile shape magnet steel (3) are arc strip structure, the both sides face of tile shape magnet steel (3) be with forked tail inclined plane structure that forked tail magnetic steel groove (22) inner chamber both sides wall agrees with.