CN219287354U

CN219287354U - Nutation magnetic gear motor structure

Info

Publication number: CN219287354U
Application number: CN202320113198.9U
Authority: CN
Inventors: 姚立纲; 谭子超; 丁嘉鑫; 苏浩程
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2023-01-20
Filing date: 2023-01-20
Publication date: 2023-06-30
Anticipated expiration: 2033-01-20

Abstract

The utility model relates to a nutation magnetic gear motor structure which comprises a box body, an input shaft, a nutation sleeve, a first magnetic gear, a second magnetic gear, stator teeth and an armature winding, wherein the input shaft, the nutation sleeve, the first magnetic gear, the second magnetic gear, the stator teeth and the armature winding are arranged in the box body, the input shaft is arranged on the outer side of the input shaft through a bearing, the stator teeth are wound with the armature winding, the end part of the input shaft is connected with the nutation sleeve, the first magnetic gear is arranged on the nutation sleeve, the first magnetic gear comprises a first permanent magnet and a second permanent magnet, the first permanent magnet is arranged on one side surface of the perpendicular surface of the first magnetic gear, facing the armature winding, of the nutation sleeve, the second permanent magnet is arranged on the coupling surface of the first magnetic gear and the second magnetic gear, and the second magnetic gear and the first magnetic gear form magnetic gear pair to output torque based on a magnetic coupling principle. The motor has the advantages of simple structure, large transmission ratio, high transmission efficiency, and small fluctuation torque and stable time.

Description

Nutation magnetic gear motor structure

Technical Field

The utility model relates to the field of permanent magnet motors, in particular to a nutating magnetic gear motor structure.

Background

Along with the development of precision machinery, the modern industry and agriculture industry puts forward higher requirements on motors, and the traditional contact type speed reducing mechanism inevitably generates abrasion due to gears, so that the reliability of the whole system is reduced, the service life is shortened, and simultaneously, loud noise is brought. With the development of permanent magnet materials, permanent magnet motors are widely used due to small size, light weight, high efficiency, large output torque, simple structure, more reliable operation and the like. The theory of nutation transmission, magnetic transmission and permanent magnet direct drive motor is combined, a lengthy mechanical transmission chain in the traditional structure is eliminated, and motor integrated design is carried out. The motor speed reduction and distance increase are realized, low-speed large torque is directly output, and the motor has wide application prospect in the fields of modern robots, electric automobiles and the like.

Disclosure of Invention

The utility model aims to provide a nutation magnetic gear motor structure which is simple in structure, large in transmission ratio, high in transmission efficiency and small in fluctuation torque and stabilization time.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a nutation magnetic gear motor structure, includes box and locates input shaft, nutation cover, magnetic gear one, magnetic gear two, stator tooth and armature winding in it, the input shaft passes through the bearing and installs on the box, the input shaft outside sets up the stator tooth, the armature winding is around establishing between the stator tooth, the nutation cover is connected to input shaft tip, install magnetic gear one on the nutation cover, magnetic gear one includes permanent magnet one and permanent magnet two, permanent magnet one sets up on magnetic gear one and nutation cover perpendicular orientation armature winding's a side, permanent magnet two sets up on magnetic gear one and magnetic gear two's coupling face, magnetic gear two forms magnetic gear pair output torque with magnetic gear one based on the magnetic coupling principle.

Further, a nutation angle necessary for the operation of the nutation magnetic gear motor is formed on the input shaft by utilizing a nutation sleeve, and the rotation of the nutation magnetic gear is limited after the magnetic field modulated by the armature winding through the stator teeth is coupled with the magnetic field of the permanent magnet I on the magnetic gear I.

Further, a permanent magnet III is attached to the input shaft, the number of magnetic pole pairs of the permanent magnet III attached to the input shaft is p1=2, and the number of magnetic pole pairs of a rotating magnetic field generated by energizing an armature winding is p1=2, so that the input shaft is driven to rotate.

Further, the permanent magnets of the first magnetic gear and the second magnetic gear are formed by adopting an N-pole and S-pole alternating annular array, the pole pair number of the first permanent magnet on the first magnetic gear is p2=12, the pole pair number of the second permanent magnet on the first magnetic gear is p3=18, and the pole pair number of the second magnetic gear is p4=9.

Compared with the prior art, the utility model has the following beneficial effects: the motor structure of the nutation magnetic gear is simple in structure, high in transmission efficiency, small in fluctuation torque and stable time, and has strong practicability and wide application prospect.

Drawings

Fig. 1 is a schematic diagram of an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a magnetic gear one according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of an embodiment of the present utility model.

In the figure: 1-an input shaft; 2-armature winding; 3-stator teeth; 4-permanent magnet IV; 5-magnetic gear one; 6-a second magnetic gear; 7-nutating sleeve; 8, a box body; 9-permanent magnet I; 10-a second permanent magnet; 11-permanent magnet three.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As shown in fig. 1-3, the embodiment provides a nutating magnetic gear motor structure, which comprises a box body 8, an input shaft 1, a nutating sleeve 7, a first magnetic gear 5, a second magnetic gear 6, stator teeth 3 and an armature winding 2, wherein the input shaft 1 is arranged on the box body 8 through a bearing, the stator teeth 3 are arranged on the outer side of the input shaft 1, the armature winding 2 is wound between the stator teeth 3, the end part of the input shaft 1 is connected with the nutating sleeve 7, the first magnetic gear 5 is arranged on the nutating sleeve 7, the first magnetic gear 5 comprises a first permanent magnet 9 and a second permanent magnet 10, the first permanent magnet 9 is arranged on one side surface of the perpendicular surface of the first magnetic gear 5 facing the armature winding 2, the second permanent magnet 10 is arranged on a coupling surface of the first magnetic gear 5 and the second magnetic gear 6, and the first magnetic gear 5 form magnetic pair output torque based on a magnetic coupling principle. Through this motor structure, realize that a rotating magnetic field accomplishes two kinds of functions.

The nutation angle necessary for the nutation magnetic gear motor to work is formed on the input shaft 1 by utilizing the nutation sleeve, and the rotation of the nutation magnetic gear is limited after the magnetic field modulated by the armature winding 2 through the stator teeth 3 is coupled with the magnetic field of the permanent magnet 9 on the magnetic gear 5.

The permanent magnet III 11 is attached to the surface of the input shaft 1, the magnetic pole pair number of the permanent magnet III 11 attached to the input shaft is p1=2, and the magnetic pole pair number of the rotating magnetic field generated by the energizing of the armature winding is p1=2, so that the input shaft is driven to rotate.

The first permanent magnet 9, the second permanent magnet 10 and the fourth permanent magnet 4 of the second magnetic gear 6 of the first magnetic gear 5 are formed by adopting an N-pole and S-pole alternating annular array, the pole pair number of the first permanent magnet 9 on the first magnetic gear 5 is p2=12, the pole pair number of the second permanent magnet 10 on the first magnetic gear 5 is p3=18, and the pole pair number of the second magnetic gear 6 is p4=9.

The working process of the nutation magnetic gear motor structure is as follows:

(1) The power is input by an input shaft of a surface-mounted permanent magnet III driven by a rotating magnetic field formed by energizing armature windings between stator teeth, the input shaft drives a magnetic gear I on a nutation sleeve to rotate, wherein the magnetic pole pair number of the generated rotating magnetic field is p1=2, and the magnetic pole pair number of a permanent magnet III 11 surface-mounted on the input shaft is also p1.

(2) The rotating magnetic field generated by the armature winding arranged between the stator teeth forms a magnetic field with the pole number of p2 = 12 through the modulation action of the stator teeth, and the magnetic field is coupled with a permanent magnet I (the pole number of the permanent magnet I is p 2) attached to the magnetic gear I to form first-stage deceleration.

(3) The first magnetic gear and the second magnetic gear form a magnetic gear pair based on a magnetic coupling principle to form second-stage speed reduction, wherein the magnetic pole pair number of a permanent magnet II on the first magnetic gear is p3=18, the magnetic pole pair number of the second magnetic gear is p4=9, power is further reduced and increased in moment after passing through the second-stage magnetic gear pair, and finally the second magnetic gear is used as an output component to output torque.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. The utility model provides a nutation magnetic gear motor structure, its characterized in that includes box and locates input shaft, nutation cover, magnetic gear one, magnetic gear two, stator tooth and armature winding in it, the input shaft passes through the bearing to be installed on the box, the input shaft outside sets up the stator tooth, the armature winding is wound around between the stator tooth, input shaft end connection nutation cover, install magnetic gear one on the nutation cover, magnetic gear one includes permanent magnet one and permanent magnet two, permanent magnet one sets up on magnetic gear one and nutation cover perpendicular orientation armature winding's a side, permanent magnet two sets up on magnetic gear one and magnetic gear two's coupling face, magnetic gear two forms magnetic gear pair output torque with magnetic gear one based on magnetic coupling principle.

2. The structure of claim 1, wherein the nutating sleeve is used to form a nutating angle on the input shaft necessary for the nutating magnetic gear motor to operate, and the rotation of the nutating magnetic gear is limited after the magnetic field modulated by the armature winding through the stator teeth is coupled with the magnetic field of the permanent magnet one on the magnetic gear one.

3. The nutating magnetic gear motor structure according to claim 1, wherein the input shaft is provided with a third permanent magnet, the pole pair number of the third permanent magnet attached to the input shaft is p1=2, and the pole pair number of the rotating magnetic field generated by energizing the armature winding is p1=2, so that the input shaft is driven to rotate.

4. The nutating magnetic gear motor structure according to claim 1, wherein the permanent magnets of the first magnetic gear and the second magnetic gear are formed by using an N-pole and S-pole alternating annular array, the pole pair number of the first permanent magnet on the first magnetic gear is p2=12, the pole pair number of the second permanent magnet on the first magnetic gear is p3=18, and the pole pair number of the second magnetic gear is p4=9.