CN217427808U - Rotor of stepping motor - Google Patents
Rotor of stepping motor Download PDFInfo
- Publication number
- CN217427808U CN217427808U CN202220231308.7U CN202220231308U CN217427808U CN 217427808 U CN217427808 U CN 217427808U CN 202220231308 U CN202220231308 U CN 202220231308U CN 217427808 U CN217427808 U CN 217427808U
- Authority
- CN
- China
- Prior art keywords
- rotor
- rotor core
- cover plate
- elastic body
- stepping motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a step motor rotor, including pivot, magnet steel, preceding rotor core subassembly and back rotor core subassembly, shown pivot passes preceding rotor core subassembly, magnet steel and back rotor core subassembly in proper order, preceding rotor core subassembly includes second preceding rotor core, preceding elastomer subassembly and front shroud, preceding elastomer subassembly is put into the cavity of second preceding rotor core to through the front shroud encapsulation; the rear rotor core assembly comprises a second rear rotor core, a rear elastic body assembly and a rear cover plate, and the rear elastic body assembly is placed in a cavity of the second rear rotor core and is packaged through the rear cover plate; the rotating shaft penetrates through the front cover plate and the rear cover plate in an interference mode. Compared with the prior art, the utility model has the advantages of greatly reduced the production degree of difficulty of damping rotor core, reduced the manufacturing cost of motor.
Description
Technical Field
The utility model relates to a motor especially relates to a step motor rotor.
Background
As shown in fig. 1-3, a motor rotor 1 according to the first prior art includes a first front rotor core 3, a first rear rotor core 4, a magnetic steel 5 located in the middle of the rotor cores, and a rotating shaft 2 penetrating through the rotor cores and the magnetic steel, wherein the first front rotor core 3 and the first rear rotor core 4 are formed by pressing the same rotor sheet , and the first front rotor core 3 and the first rear rotor core 4 are staggered by a certain angle in the radial direction.
As shown in fig. 4-6, the motor rotor 6 of the second conventional solution includes a second front rotor core 7, a second rear rotor core 8, a magnetic steel 5 located in the middle of the rotor cores, and a rotating shaft 2 penetrating through the rotor cores and the magnetic steel, where the second front rotor core 7 and the second rear rotor core 8 are formed by pressing rotor punching sheets with different inner diameters, the rotor punching sheet with a smaller inner diameter is tightly attached to the magnetic steel, and the second front rotor core 7 and the second rear rotor core 8 are radially staggered by a certain angle.
However, the conventional rotor core has a solid or open structure, and thus, any component cannot be placed inside the rotor core, which results in a reduction in performance of the motor.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a rotor for a stepping motor, which overcomes the above-mentioned drawbacks of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
according to the utility model discloses a first aspect provides a step motor rotor, including pivot, magnet steel, preceding rotor core subassembly and back rotor core subassembly, shown pivot passes preceding rotor core subassembly, magnet steel and back rotor core subassembly in proper order, preceding rotor core subassembly includes second preceding rotor core, preceding elastomer subassembly and front shroud, preceding elastomer subassembly is put into the cavity of second preceding rotor core to through front shroud encapsulation; the rear rotor core assembly comprises a second rear rotor core, a rear elastic body assembly and a rear cover plate, and the rear elastic body assembly is placed in a cavity of the second rear rotor core and is packaged through the rear cover plate;
the rotating shaft penetrates through the front cover plate and the rear cover plate in an interference mode.
As the preferred technical scheme, the second front rotor core and the second rear rotor core are rotor cores formed by laminating two rotor punching sheets with different inner diameters.
As a preferable technical scheme, the front elastic body assembly comprises a front circular ring weight and a front elastic body, and the front circular ring weight is placed in the front elastic body.
As a preferred technical solution, the rear elastic body assembly includes a rear circular ring weight and a rear elastic body, and the rear circular ring weight is disposed in the rear elastic body.
As an optimal technical scheme, the magnetic steel is positioned between the second front rotor core and the second rear rotor core and is tightly attached to the rotor punching sheet on the side with the smaller inner diameter.
As a preferable technical scheme, a front shaft sleeve for preventing the front cover plate from moving is arranged on the outer side of the front cover plate, and a rear shaft sleeve for preventing the rear cover plate from moving is arranged on the outer side of the rear cover plate.
As a preferred technical scheme, the front shaft sleeve is in interference fit with the rotating shaft, and the rear shaft sleeve is in interference fit with the rotating shaft.
As a preferable technical scheme, the front shaft sleeve and the rear shaft sleeve are made of copper or aluminum materials.
Compared with the prior art, the utility model has the advantages of it is following:
1) the utility model adopts the rotor assembling mode of interference between the cover plate or the shaft sleeve and the shaft, can simply realize the increase of the annular elastomer component inside the rotor core, greatly reduces the production difficulty of the vibration reduction rotor core, and reduces the production and manufacturing cost of the motor;
2) the utility model discloses a rotor core subassembly around axle sleeve and pivot interference fit mode further prevent that the elastomer subassembly from deviating from around the motor has improved the motor performance.
Drawings
Fig. 1 is a schematic perspective view of a first rotor of a conventional hybrid stepping motor;
FIG. 2 is a schematic front view of a first conventional rotor of a hybrid stepping motor;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic perspective view of a rotor of a conventional hybrid stepping motor according to a second embodiment;
FIG. 5 is a schematic front view of a rotor of a conventional hybrid stepping motor;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
fig. 7 is a schematic perspective view of a rotor of a stepping motor according to embodiment 1 of the present invention;
fig. 8 is a schematic front view of a rotor of a stepping motor according to embodiment 1 of the present invention;
FIG. 9 is a sectional view taken along line C-C of FIG. 8;
fig. 10 is an exploded schematic view of a rotor of a stepping motor according to embodiment 1 of the present invention;
fig. 11 is a schematic perspective view of a rotor of a stepping motor according to embodiment 2 of the present invention;
fig. 12 is a schematic front view of a rotor of a stepping motor according to embodiment 2 of the present invention;
FIG. 13 is a cross-sectional view taken along line C-C of FIG. 12;
wherein 1 is the motor rotor of the first scheme, 2 is the rotating shaft, 3 is the first front rotor core, 4 is the first rear rotor core, 5 is the magnetic steel, 6 is the motor rotor of the second scheme, 7 is the second front rotor core, and 8 is the second rear rotor core;
wherein 9 is the motor rotor of embodiment 1 of the present invention, 10 is a front elastic body, 11 is a front circular heavy object, 12 is a rear elastic body, 13 is a rear circular heavy object, 14 is a front cover plate, 15 is a rear cover plate, 16 is a front elastic body assembly, 17 is a rear elastic body assembly, 18 is a front rotor core assembly, and 19 is a rear rotor core assembly;
20 is the utility model discloses the electric motor rotor of embodiment 2, 21 are the front axle sleeve, and 22 are the back axle sleeve.
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 some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 7-10, a rotor of a stepping motor comprises a rotating shaft 2, a magnetic steel 5, a front rotor core assembly 18 and a rear rotor core assembly 19, wherein the rotating shaft 2 sequentially penetrates through the front rotor core assembly 18, the magnetic steel 5 and the rear rotor core assembly 19, the front rotor core assembly 18 comprises a second front rotor core 7, a front elastic body assembly 16 and a front cover plate 14, and the front elastic body assembly 16 is placed in a cavity of the second front rotor core 7 and is encapsulated by the front cover plate 14; the rear rotor core assembly 19 comprises a second rear rotor core 8, a rear elastic body assembly 17 and a rear cover plate 15, and the rear elastic body assembly 17 is placed in a cavity of the second rear rotor core 8 and is packaged through the rear cover plate 15; the rotating shaft 2 penetrates through the front cover plate 14 and the rear cover plate 15 in an interference mode. Namely the utility model discloses a rotor equipment mode of apron and pivot interference can simply realize increasing ring elastomer subassembly in rotor core is inside, has greatly reduced damping rotor core's the production degree of difficulty, has reduced the production and the manufacturing cost of motor.
The use of the front cover plate 14 and the rear cover plate 15 is to prevent the front and rear elastic body assemblies of the motor from coming out of the front and rear rotor core assemblies.
And the second front rotor core 7 and the second rear rotor core 8 are rotor cores formed by laminating two rotor punching sheets with different inner diameters. The front elastic body assembly 16 comprises a front circular ring weight 11 and a front elastic body 10, wherein the front circular ring weight 11 is arranged in the front elastic body 10. The rear elastic body assembly 17 comprises a rear circular ring weight 13 and a rear elastic body 12, and the rear circular ring weight 13 is arranged in the rear elastic body 12. And the magnetic steel 5 is positioned between the second front rotor core 7 and the second rear rotor core 8 and is tightly attached to the rotor punching sheet on the side with the smaller inner diameter.
The method for manufacturing the rotor of the stepping motor of the embodiment specifically includes:
101. a second front rotor iron core 7 at one side is pressed in the rotating shaft 2;
102. placing the front elastomeric component 16;
103. pressing in the front cover plate 14;
104. placing a magnetic steel 5 on one side of the small-inner-diameter rotor core;
105. pressing in a second rear rotor iron core 8 on the other side to ensure that the small inner diameter rotor iron core and the magnetic steel are tightly attached to 5, and staggering the front and rear rotor iron cores by a certain angle in the radial direction;
106. a rear elastomeric member 17 placed on the other side;
107. the other side back cover 15 is pressed in.
Example 2
As shown in fig. 11-13, in order to prevent the cover plate from displacing during the operation of the motor, and the elastic body is pulled out of the rotor core, a front bushing 21 for preventing the front cover plate from displacing is provided outside the front cover plate 14, and a rear bushing 22 for preventing the rear cover plate from displacing is provided outside the rear cover plate 15.
The front shaft sleeve 21 is in interference fit with the rotating shaft 2, and the rear shaft sleeve 22 is in interference fit with the rotating shaft 2. The front shaft sleeve 21 and the rear shaft sleeve 22 are made of copper or aluminum materials.
The method for manufacturing the rotor of the stepping motor in the embodiment specifically comprises the following steps:
201. a second front rotor iron core 7 at one side is pressed in the rotating shaft 2;
202. placing the front elastomeric component 16;
203. press-fitting the front cover plate 14;
204. pressing the front shaft sleeve 21;
205. placing a magnetic steel 5 on one side of the small-inner-diameter rotor core;
206. pressing in a second rear rotor iron core 8 on the other side to ensure that the small inner diameter rotor iron core is tightly attached to the magnetic steel 5, and staggering the front and rear rotor iron cores by a certain angle in the radial direction;
207. a rear elastomer member 17 placed on the other side;
208. covering the other side rear cover plate 15;
209. the other side rear boss 22 is pressed in.
This embodiment adopts the rotor equipment mode of axle sleeve and axle interference, can simply realize increasing ring elastomer subassembly in rotor core inside, has greatly reduced damping rotor core's the production degree of difficulty, has reduced the production and the manufacturing cost of motor.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A stepping motor rotor comprises a rotating shaft (2), magnetic steel (5), a front rotor iron core assembly (18) and a rear rotor iron core assembly (19), wherein the rotating shaft (2) sequentially penetrates through the front rotor iron core assembly (18), the magnetic steel (5) and the rear rotor iron core assembly (19), and is characterized in that the front rotor iron core assembly (18) comprises a second front rotor iron core (7), a front elastic body assembly (16) and a front cover plate (14), and the front elastic body assembly (16) is placed in a cavity of the second front rotor iron core (7) and is packaged through the front cover plate (14); the rear rotor core assembly (19) comprises a second rear rotor core (8), a rear elastic body assembly (17) and a rear cover plate (15), and the rear elastic body assembly (17) is placed in a cavity of the second rear rotor core (8) and is packaged through the rear cover plate (15);
the rotating shaft (2) penetrates through the front cover plate (14) and the rear cover plate (15) in an interference mode.
2. The rotor of a stepping motor according to claim 1, wherein said second front rotor core (7) and said second rear rotor core (8) are rotor cores laminated by two kinds of rotor sheets having different inner diameters.
3. A stepping motor rotor according to claim 1, characterized in that said front elastomer member (16) comprises a front ring weight (11) and a front elastomer (10), said front ring weight (11) being placed in the front elastomer (10).
4. A stepping motor rotor according to claim 1, characterized in that said rear elastic body assembly (17) comprises a rear circular ring weight (13) and a rear elastic body (12), said rear circular ring weight (13) being disposed in the rear elastic body (12).
5. A rotor for a stepping motor according to claim 1, wherein said magnetic steel (5) is located between the second front rotor core (7) and the second rear rotor core (8) and is closely attached to the rotor lamination on the side with smaller inner diameter.
6. A rotor for a stepping motor according to claim 1, wherein the front cover plate (14) is provided with a front bushing (21) on the outside for preventing displacement of the front cover plate, and the back cover plate (15) is provided with a back bushing (22) on the outside for preventing displacement of the back cover plate.
7. A rotor as claimed in claim 6, characterised in that said front sleeve (21) is in interference fit with the shaft (2) and said rear sleeve (22) is in interference fit with the shaft (2).
8. A rotor for a stepping motor according to claim 6, wherein said front sleeve (21) and said rear sleeve (22) are made of copper or aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220231308.7U CN217427808U (en) | 2022-01-27 | 2022-01-27 | Rotor of stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220231308.7U CN217427808U (en) | 2022-01-27 | 2022-01-27 | Rotor of stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217427808U true CN217427808U (en) | 2022-09-13 |
Family
ID=83178024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220231308.7U Active CN217427808U (en) | 2022-01-27 | 2022-01-27 | Rotor of stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217427808U (en) |
-
2022
- 2022-01-27 CN CN202220231308.7U patent/CN217427808U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4912353A (en) | Two-piece motor stator | |
| CN212627614U (en) | Axial magnetic field has geared hub motor | |
| US7546674B2 (en) | Method of rotor assembly without the hub | |
| EP1081825A3 (en) | Electric motor having composite encapsulated stator and rotor | |
| US5502341A (en) | Electric motor and method of producing the same | |
| US10566855B2 (en) | Permanent magnet direct current motor and HVAC system using the same | |
| CN217427808U (en) | Rotor of stepping motor | |
| US6720696B2 (en) | Starter/generator and a method for mounting a starter/generator within a vehicle | |
| CN1393978A (en) | Hub electric generator for bicycle | |
| CN217469589U (en) | Rotor of stepping motor | |
| CN112510949A (en) | No yoke stator module and axial permanent magnetism wheel hub formula motor | |
| CN114337030A (en) | Stepping motor rotor and manufacturing method thereof | |
| CN111845203A (en) | Hybrid/electric vehicle transmission | |
| CN114337029A (en) | Rotor of stepping motor | |
| CN214124956U (en) | No yoke stator module and axial permanent magnetism wheel hub formula motor | |
| CN214674681U (en) | Novel integrated motor for fan | |
| CN114362397A (en) | Punching sheet structure, rotor assembly and motor | |
| US20230065959A1 (en) | Electric motor having a rotor with a burst-protection sleeve without an adhesion of the magnet elements | |
| CN112467930A (en) | Motor and compressor with same | |
| CN112564322A (en) | Stator core, stator, motor, compressor and refrigeration plant | |
| CN221042436U (en) | Rotor assembly, motor and electrical equipment | |
| CN214626674U (en) | Motor and compressor with same | |
| CN220368531U (en) | Rotor assembly, motor and vehicle | |
| CN217388341U (en) | Rotor core of stepping motor | |
| WO2024113279A1 (en) | Electric device, and electric motor and rotor thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |