CN216436912U - Motor rotor - Google Patents

Abstract

The utility model discloses a motor rotor, which comprises a rotor shaft and a shaft sleeve, wherein the rotor shaft is in threaded connection with the shaft sleeve, a plurality of limiting strips with a radial limiting function are uniformly arranged on the periphery of the shaft sleeve along the circumferential direction, the bottoms of the limiting strips are fixedly connected with an annular bottom plate, a limiting groove is formed between two adjacent limiting strips and the bottom plate, and a magnet is clamped and embedded in the limiting groove; the limiting strip is T-shaped, the cross section of the magnet is fan-shaped, and two ends of the circumference of the outer side of the limiting strip are provided with concave parts matched with limiting bulges on two sides of the tail end of the T-shaped limiting strip; still including set up in the ring shape roof at spacing top, be provided with the counter sink on the roof, be provided with the screw hole that corresponds with the counter sink on the magnetite, it is fixed with roof and magnetite through the screw. The assembly equipment adopted by the utility model is simple and has high assembly speed, so that the assembly cost is low, the efficiency is high, and the quality of the assembled product is stable; the clamping and embedding matching mode is adopted, so that the clamping and embedding matching is firmer and is not easy to loosen.

Description

Motor rotor

Technical Field

The utility model relates to the technical field of motor parts, in particular to a motor rotor.

Background

The motor rotor comprises a rotor shaft and a plurality of magnets fixed around the rotor shaft. When a manufacturer assembles, a large-scale glue dispensing device is used for bonding the magnet on the rotor shaft by using glue, a winding device is used for winding fish wires in the circumferential direction of the bonded magnet to prevent the magnet from being separated from the rotor shaft due to the adhesive force failure of the glue, and finally the wound product is placed into a baking device for baking for a period of time to enable the glue to be completely solidified for use.

By adopting the assembly technology, large-scale glue dispensing equipment, winding equipment and baking equipment are required to be adopted during assembly, the assembly time is long, the comprehensive cost of the product is high, and in addition, the quality of the product is greatly influenced by the glue quality and the baking process, so the stability of the product quality is not easy to control.

SUMMERY OF THE UTILITY MODEL

The utility model provides a motor rotor which aims to solve the problems of high cost and unstable product quality when the motor rotor is assembled by adopting the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a motor rotor comprises a rotor shaft and a shaft sleeve, wherein the rotor shaft is in threaded connection with the shaft sleeve, a plurality of limiting strips with a radial limiting function are uniformly arranged on the periphery of the shaft sleeve along the circumferential direction, the bottoms of the limiting strips are fixedly connected with an annular bottom plate, a limiting groove is formed between two adjacent limiting strips and the bottom plate, and magnets are embedded in the limiting grooves in a clamped mode; the limiting strip is T-shaped, the cross section of the magnet is fan-shaped, and two ends of the circumference of the outer side of the limiting strip are provided with concave parts matched with limiting bulges on two sides of the tail end of the T-shaped limiting strip; still including set up in the ring shape roof at spacing top, be provided with the counter sink on the roof, be provided with the screw hole that corresponds with the counter sink on the magnetite, it is fixed with roof and magnetite through the screw.

In a preferred embodiment of the present invention, the depth of the stopper groove is equal to the thickness of the magnet.

As a preferred arrangement of the utility model, the screw is a antimagnetic screw.

In a preferred embodiment of the present invention, the threaded hole is located at a central point of the fan-shaped magnet.

The utility model has the following beneficial effects:

compared with the existing glue bonding mode, the method has the advantages that the adopted assembling equipment is simple, the assembling speed is high, the assembling cost is low, and the efficiency is high; in addition, the quality of the product assembled by adopting a screw fixing mode is stable; adopt magnetite outside depressed part and the spacing inlay card complex mode of T type, inlay card complex is more firm, is difficult for appearing not hard up.

Drawings

FIG. 1 is a top view of a motor rotor;

fig. 2 is a front view of a rotor of an electric machine.

1-a rotor shaft;

2-shaft sleeve;

3-a limiting strip;

4-a bottom plate;

5-limiting groove;

6-a magnet;

7-limiting protrusions;

8-a recess;

9-a top plate;

10-countersunk;

11-screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, an object of an embodiment of the present invention is to provide a motor rotor, including a rotor shaft 1 and a shaft sleeve 2, where the rotor shaft 1 is in threaded connection with the shaft sleeve 2, a plurality of limiting strips 3 having a radial limiting function are uniformly arranged on the periphery of the shaft sleeve 2 along the circumferential direction, the bottom of each limiting strip 3 is fixedly connected with a circular bottom plate 4, a limiting groove 5 is formed between two adjacent limiting strips 3 and the bottom plate 4, and a magnet 6 is embedded in each limiting groove 5; the limiting strip 3 is T-shaped, the section of the magnet 6 is fan-shaped, and two ends of the periphery of the outer side of the magnet are provided with concave parts 8 matched with limiting bulges 7 on two sides of the tail end of the T-shaped limiting strip 3; still including set up in the ring shape roof 9 at spacing 3 tops, be provided with counter sink 10 on the roof 9, be provided with the screw hole that corresponds with counter sink 10 on the magnetite 6, fix roof 9 and magnetite 6 through screw 11.

In an embodiment of the present invention, the depth of the stopper groove 5 is preferably equal to the thickness of the magnet 6.

To further improve the performance of the utility model, the screw 11 is a antimagnetic screw.

In order to further provide the stability of the motor rotor in the rotating process, the threaded hole is positioned at the central point of the fan-shaped magnet 6.

In conclusion, compared with the existing glue bonding mode, the glue bonding method has the advantages that the adopted assembling equipment is simple, the assembling speed is high, the assembling cost is low, and the efficiency is high; in addition, the threaded hole is arranged at the central point of the fan-shaped magnet 6 and is assembled in a screw fixing mode, so that the fan-shaped magnet is reliable in quality and stable in rotation; adopt magnetite outside depressed part 8 and the spacing strip 3 inlay card complex mode of T type, inlay card complex is more firm, is difficult for appearing not hard up.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (4)

1. A motor rotor comprises a rotor shaft and a shaft sleeve, and is characterized in that the rotor shaft is in threaded connection with the shaft sleeve, a plurality of limiting strips with a radial limiting function are uniformly arranged on the periphery of the shaft sleeve along the circumferential direction, the bottoms of the limiting strips are fixedly connected with an annular bottom plate, a limiting groove is formed between two adjacent limiting strips and the bottom plate, and a magnet is clamped and embedded in the limiting groove; the limiting strip is T-shaped, the cross section of the magnet is fan-shaped, and two ends of the circumference of the outer side of the limiting strip are provided with concave parts matched with limiting bulges on two sides of the tail end of the T-shaped limiting strip; still including set up in the ring shape roof at spacing top, be provided with the counter sink on the roof, be provided with the screw hole that corresponds with the counter sink on the magnetite, it is fixed with roof and magnetite through the screw.

2. The electric motor rotor as set forth in claim 1, wherein said stopper groove has a depth equal to a thickness of said magnet.

3. An electric machine rotor as claimed in claim 1, characterised in that the screws are antimagnetic screws.

4. The electric machine rotor as recited in claim 1, wherein the threaded hole is located at a central point of the fan-shaped magnet.

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