CN220492720U

CN220492720U - Synchronous motor magnet steel rotor

Info

Publication number: CN220492720U
Application number: CN202321572532.3U
Authority: CN
Inventors: 顾琴娥; 翟奕卉; 朱小丹
Original assignee: Jiangsu Changxin Magnetic Industry Technology Co ltd
Current assignee: Jiangsu Changxin Magnetic Industry Technology Co ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2024-02-13
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses a synchronous motor magnetic steel rotor, which comprises a motor shell, a rotating shaft main body and a magnetic steel rotor main body, wherein the rotating shaft main body is inserted in the middle of the motor shell in a rotating way, a stator core is fixedly connected to an inner cavity of the motor shell, a magnetic steel rotor main body is fixedly sleeved on the outer side wall of the rotating shaft main body, permanent magnet main bodies are uniformly and fixedly connected to the outer side wall of the magnetic steel rotor main body along the circumferential direction, the permanent magnet main bodies are positioned on the inner side wall of the stator core, and the magnetic steel rotor main body is positioned in the inner cavity of the stator core.

Description

Synchronous motor magnet steel rotor

Technical Field

The utility model relates to the technical field of motor rotors, in particular to a synchronous motor magnetic steel rotor.

Background

The synchronous motor is an alternating current motor which generates torque by interaction of an exciting magnetic field of direct current power supply and a rotating magnetic field of an armature and rotates at a synchronous rotating speed, and a motor rotor refers to a rotating part in the motor and is divided into a motor rotor and a generator rotor, and the synchronous motor mainly comprises a stator and a rotor, wherein the rotor comprises a rotating shaft, an iron core fixedly sleeved on the rotating shaft and magnetic steel fixedly arranged on the outer side wall of the iron core. When the synchronous motor works, a variable current is input into the stator, so that a variable magnetic field is generated, and the magnetic steel continuously rotates under the action of the force in the variable magnetic field.

Prior art, such as: the publication number (CN 217935233U) discloses a synchronous motor magnetic steel rotor, which belongs to the technical field of motor rotors and comprises a rotating shaft, an iron core fixedly sleeved on the rotating shaft and a plurality of magnetic steels, wherein the magnetic steels are distributed at intervals on the outer side of the circumference of the iron core; the magnetic steel sliding and embedding device is characterized in that a fixing groove for sliding and embedding the magnetic steel is formed in the iron core, and an axial positioning disc for pressing the magnetic steel in the fixing groove is arranged on the iron core. The axial positioning disk is provided with a threaded pipe, the iron core is provided with a threaded groove, and the threaded pipe is arranged in the threaded groove in a penetrating manner and is in threaded connection with the iron core. This application has the effect that makes the connection between magnet steel and the iron core more stable.

However, the above and other typical prior art techniques have certain problems in use: the whole motor is not provided with an independent heat dissipation component and an auxiliary internal structure fixed component, so that a large amount of heat is easily generated to damage a main body when a rotor rotates at a high speed, or high-speed centrifugal force is generated to disperse the components, and potential safety hazards are easily caused; meanwhile, the limit fixing components are not arranged among the components, such as the stator, the permanent magnet, the rotor and the rotating shaft, so that the offset is easily generated in the working process of the device, and the device is damaged.

Disclosure of Invention

The utility model aims to provide a synchronous motor magnetic steel rotor so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a synchronous machine magnet steel rotor, includes motor housing, pivot main part and magnet steel rotor main part, motor housing's centre rotates the grafting has the pivot main part, motor housing's inner chamber fixedly connected with stator core, the magnet steel rotor main part has been cup jointed to the lateral wall of pivot main part is fixed, the lateral wall of magnet steel rotor main part is followed the even fixedly connected with permanent magnet main part of circumferencial direction, the permanent magnet main part is located stator core's inside wall, the magnet steel rotor main part is located stator core's inner chamber.

As a preferable technical scheme of the utility model, the front side wall of the motor shell is fixedly connected with a front end cover, the rear side wall of the motor shell is fixedly connected with a rear side fan housing, and the inner cavity of the rear side fan housing is rotationally connected with a cooling fan.

As a preferable technical scheme of the utility model, a junction box is fixedly connected to the side wall of the motor shell, a fixed base is fixedly connected to the bottom of the motor shell, and a lifting screw is fixedly connected to the middle of the top of the motor shell.

As a preferable technical scheme of the utility model, the front side of the magnetic steel rotor main body is fixedly connected with a rotor limit sleeve, and the rotor limit sleeve is positioned on the outer side wall of the rotating shaft main body for sleeving.

As a preferable technical scheme of the utility model, the number of the permanent magnet bodies is four, the rear side of the stator core is fixedly connected with an inner end cover, and the inner end cover is positioned at the rear end part of the rotating shaft body.

As a preferable technical scheme of the utility model, the outer side walls of the magnetic steel rotor main body are fixedly connected with permanent magnet isolation lugs along the circumferential direction, the front side wall and the rear side wall of the magnetic steel rotor main body are fixedly connected with rotor lugs along the circumferential direction, a rotating shaft inserting hole is formed in the middle of the magnetic steel rotor main body, the rotating shaft inserting hole is matched with the rotating shaft main body, and clamping limiting grooves are formed in the side edges of the rotating shaft inserting hole.

As a preferable technical scheme of the utility model, two ends of the outer side wall of the rotating shaft main body are fixedly connected with shaft circlips, the number of the shaft circlips is two, the two shaft circlips are positioned at the front end and the rear end of the magnetic steel rotor main body, the middle of the outer side wall of the rotating shaft main body is fixedly connected with a clamping limiting block, the clamping limiting block is matched with a clamping limiting groove, and the end part of the rotating shaft main body is rotationally connected with a ball bearing.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the power line is connected through the junction box, the motor main body is started, the magnetic steel rotor main body and the permanent magnet main body in the motor main body can be driven by the rotating shaft main body to rotate, the stator core positioned outside the motor main body can limit and protect the internal structure, the damage of components caused by friction generated by centrifugal force and high-speed rotation is prevented, the rear side is provided with the cooling fan and the rear side fan housing to carry out independent heat dissipation, the motor main body is protected, the motor is installed and fixed through the fixed base at the bottom of the motor main body, and the lifting ring screw is arranged at the top of the motor main body to assist in lifting or installation, so that the motor has strong overall structure firmness and long service life;

2. according to the utility model, the four permanent magnet bodies are isolated and divided through the permanent magnet isolating convex blocks, in order to ensure the stability of the magnetic steel rotor body, the front end and the rear end are provided with the elastic check rings for the shaft, the front end is provided with the rotor limiting sleeve for auxiliary limiting protection, the rotating shaft body can be used for auxiliary rotation by using the ball bearing, the stability and the firmness are improved, meanwhile, the clamping limiting block and the clamping limiting groove are provided for clamping treatment, the dislocation of the magnetic steel rotor body caused by long-time rotation is prevented, the integral structural strength of the device is high, and the magnet breaking can assist the magnetic steel to rotate in a changed magnetic field better.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the motor according to the present utility model;

FIG. 3 is a schematic diagram of a magnetic steel rotor according to the present utility model;

fig. 4 is a schematic view of a main structure of a spindle according to the present utility model.

In the figure: 1. a motor housing; 2. a front end cover; 3. a rotating shaft main body; 4. a junction box; 5. a fixed base; 6. a rear side fan housing; 7. a heat radiation fan; 8. a stator core; 9. a permanent magnet body; 10. a magnetic steel rotor body; 11. a rotor limit sleeve; 12. an inner end cap; 101. permanent magnet isolation bumps; 102. rotor protruding blocks; 103. a rotating shaft plug hole; 104. the clamping limit groove is clamped; 301. circlips for shafts; 302. the limiting block is clamped; 303. ball bearings.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution for a magnetic steel rotor of a synchronous motor:

embodiment one:

according to the fig. 1, fig. 2, fig. 3 and fig. 4 show, a synchronous motor magnet steel rotor, including motor housing 1, pivot main part 3 and magnet steel rotor main part 10, the centre rotation of motor housing 1 is pegged graft and is had pivot main part 3, the inner chamber fixedly connected with stator core 8 of motor housing 1, the fixed magnet steel rotor main part 10 that has cup jointed of the lateral wall of pivot main part 3, the even fixedly connected with permanent magnet main part 9 of lateral wall along circumferencial direction of magnet steel rotor main part 10, permanent magnet main part 9 is located stator core 8's inside wall, magnet steel rotor main part 10 is located stator core 8's inner chamber.

In this embodiment, the front side wall fixedly connected with front end housing 2 of motor housing 1, the back lateral wall fixedly connected with back side fan housing 6 of motor housing 1, the inner chamber rotation of back side fan housing 6 is connected with radiator fan 7, the lateral wall fixedly connected with terminal box 4 of motor housing 1, the bottom fixedly connected with unable adjustment base 5 of motor housing 1, fixedly connected with flying ring screw in the middle of the top of motor housing 1, the front side fixedly connected with rotor stop collar 11 of magnet steel rotor main part 10, rotor stop collar 11 are located the lateral wall of pivot main part 3 and cup joint.

The motor main body is started by connecting the junction box 4 with a power line, the magnetic steel rotor main body 10 and the permanent magnet main body 9 inside the motor main body can be driven to rotate by the rotating shaft main body 3, the stator core 8 positioned outside the motor main body can limit and protect the internal structure, damage to components caused by friction generated by centrifugal force and high-speed rotation is prevented, the rear side is provided with the cooling fan 7 and the rear side fan housing 6 for autonomous cooling, the motor main body is protected, the motor is fixedly installed through the fixed base 5 at the bottom of the motor main body, and the top is provided with the lifting ring screw to assist lifting or installation.

In this embodiment, the number of the permanent magnet main bodies 9 is four, the rear side of the stator core 8 is fixedly connected with the inner end caps 12, the inner end caps 12 are located at the rear end of the rotating shaft main body 3, the outer side walls of the magnetic steel rotor main body 10 are fixedly connected with the permanent magnet isolation convex blocks 101 along the circumferential direction, the front side wall and the rear side wall of the magnetic steel rotor main body 10 are fixedly connected with the rotor convex blocks 102 along the circumferential direction, the middle of the magnetic steel rotor main body 10 is provided with the rotating shaft inserting holes 103, the rotating shaft inserting holes 103 are matched with the rotating shaft main body 3, the side edges of the rotating shaft inserting holes 103 are provided with the clamping limiting grooves 104, the two ends of the outer side wall of the rotating shaft main body 3 are fixedly connected with the shaft circlips 301, the number of the shaft circlips 301 is two, the two shaft circlips 301 are located at the front end and the rear end of the magnetic steel rotor main body 10, the middle of the outer side wall of the rotating shaft main body 3 is fixedly connected with the clamping limiting blocks 302, the clamping limiting blocks 302 are matched with the clamping limiting grooves 104, and the end parts of the rotating shaft main body 3 are rotationally connected with the ball bearings 303.

The four permanent magnet main bodies 9 are isolated and disconnected through the permanent magnet isolation convex blocks 101, and in order to guarantee the stability of the magnetic steel rotor main body 10, the front end and the rear end are provided with the elastic check rings 301 for shafts, meanwhile, the front end is provided with the rotor limit sleeve 11 for auxiliary limit protection, the rotating shaft main body 3 can use the ball bearing 303 for auxiliary rotation, the stability and the firmness are improved, meanwhile, the clamping limit blocks 302 and the clamping limit grooves 104 are provided for clamping treatment, the dislocation of the magnetic steel rotor main body 10 caused by long-time rotation is prevented, the overall structural strength of the device is high, and the magnet isolation can assist the magnetic steel to rotate in a changed magnetic field better.

When the synchronous motor magnetic steel rotor is particularly used, a power line is connected through the junction box 4, the motor main body is started, the internal magnetic steel rotor main body 10 and the permanent magnet main body 9 can be driven by the rotating shaft main body 3 to rotate, the stator iron core 8 positioned on the outer side of the motor main body can limit and protect the internal structure, the damage of components caused by centrifugal force and friction generated by high-speed rotation is prevented, the rear side is provided with the cooling fan 7 and the rear side fan housing 6 to perform independent heat dissipation, the motor main body is protected, the motor is installed and fixed through the fixed base 5 at the bottom of the motor main body, and the top is provided with the hanging ring screw to assist in lifting or installation; the four permanent magnet main bodies 9 are isolated and disconnected through the permanent magnet isolation convex blocks 101, and in order to guarantee the stability of the magnetic steel rotor main body 10, the front end and the rear end are provided with the elastic check rings 301 for shafts, meanwhile, the front end is provided with the rotor limit sleeve 11 for auxiliary limit protection, the rotating shaft main body 3 can use the ball bearing 303 for auxiliary rotation, the stability and the firmness are improved, meanwhile, the clamping limit blocks 302 and the clamping limit grooves 104 are provided for clamping treatment, the dislocation of the magnetic steel rotor main body 10 caused by long-time rotation is prevented, the overall structural strength of the device is high, and the magnet isolation can assist the magnetic steel to rotate in a changed magnetic field better.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the description with reference to the terms "one aspect," "some aspects," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily for the same scheme or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

Claims

1. The utility model provides a synchronous machine magnet steel rotor, includes motor housing (1), pivot main part (3) and magnet steel rotor main part (10), its characterized in that: the middle of motor housing (1) rotates and peg graft there is pivot main part (3), the inner chamber fixedly connected with stator core (8) of motor housing (1), the lateral wall of pivot main part (3) is fixed to be cup jointed magnet steel rotor main part (10), the lateral wall of magnet steel rotor main part (10) is followed circumferencial direction evenly fixedly connected with permanent magnet main part (9), permanent magnet main part (9) are located the inside wall of stator core (8), magnet steel rotor main part (10) are located the inner chamber of stator core (8).

2. A synchronous motor magnetic steel rotor according to claim 1, characterized in that: the motor is characterized in that the front side wall of the motor housing (1) is fixedly connected with a front end cover (2), the rear side wall of the motor housing (1) is fixedly connected with a rear side fan housing (6), and the inner cavity of the rear side fan housing (6) is rotationally connected with a cooling fan (7).

3. A synchronous motor magnetic steel rotor according to claim 1, characterized in that: the motor is characterized in that a junction box (4) is fixedly connected to the side wall of the motor shell (1), a fixing base (5) is fixedly connected to the bottom of the motor shell (1), and a lifting screw is fixedly connected to the middle of the top of the motor shell (1).

4. A synchronous motor magnetic steel rotor according to claim 1, characterized in that: the front side of the magnetic steel rotor main body (10) is fixedly connected with a rotor limit sleeve (11), and the rotor limit sleeve (11) is positioned on the outer side wall of the rotating shaft main body (3) for sleeving.

5. A synchronous motor magnetic steel rotor according to claim 1, characterized in that: the number of the permanent magnet main bodies (9) is four, an inner end cover (12) is fixedly connected to the rear side of the stator core (8), and the inner end cover (12) is positioned at the rear end part of the rotating shaft main body (3).

6. A synchronous motor magnetic steel rotor according to claim 1, characterized in that: the magnetic steel rotor comprises a magnetic steel rotor body (10), permanent magnet isolation convex blocks (101) are fixedly connected to the outer side walls of the magnetic steel rotor body (10) along the circumferential direction, rotor convex blocks (102) are fixedly connected to the front side wall and the rear side wall of the magnetic steel rotor body (10) along the circumferential direction, a rotating shaft inserting hole (103) is formed in the middle of the magnetic steel rotor body (10), the rotating shaft inserting hole (103) is matched with a rotating shaft body (3), and clamping limiting grooves (104) are formed in the side edges of the rotating shaft inserting hole (103).

7. A synchronous motor magnetic steel rotor according to claim 1, characterized in that: the two ends fixedly connected with axle circlip (301) of the lateral wall of pivot main part (3), the quantity of axle circlip (301) is two, two circlips (301) for the axle are located the front and back both ends of magnet steel rotor main part (10), the centre fixedly connected with joint stopper (302) of the lateral wall of pivot main part (3), joint stopper (302) and joint spacing groove (104) looks adaptation, the tip rotation of pivot main part (3) is connected with ball bearing (303).