CN208226702U - A kind of permanent-magnet motor rotor assembly - Google Patents
A kind of permanent-magnet motor rotor assembly Download PDFInfo
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- CN208226702U CN208226702U CN201820730430.2U CN201820730430U CN208226702U CN 208226702 U CN208226702 U CN 208226702U CN 201820730430 U CN201820730430 U CN 201820730430U CN 208226702 U CN208226702 U CN 208226702U
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- rotor
- armature spindle
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- spindle
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Abstract
The utility model discloses a kind of permanent-magnet motor rotor assemblies, including armature spindle, rotor press plate, rotor core, rotor core is made of the connection of multiple rotor punchings, armature spindle is equipped with keyway, rotor punching is equipped with projection key, rotor core and armature spindle are cooperatively connected by keyway, armature spindle is that female splined shaft includes rotor axle sleeve and spindle nose, when rotor core is mounted on armature spindle, the center of rotor punching inner circle and the line of centres of projection key deviate 1.875 degree of horizontal direction, and adjacent rotor iron core is positive and negative on armature spindle to be laminated.For armature spindle in such a way that rotor axle sleeve is connect with spindle nose, processing is more convenient, it is easier to realize, cost is lower.The line of centres of circle center and projection key deviates 1.875 degree of horizontal direction in rotor punching, and such rotor core and the line at projection key center also offset from 1.875 degree；Adjacent rotor core is positive and negative to be laminated, and rotor core adjacent in this way can mutually stagger 3.75 degree, to form the structure of rotor magnetic pole segmentation dislocation.
Description
Technical field
The utility model relates to motor field, especially a kind of permanent-magnet motor rotor assembly.
Background technique
The rotor component part important as motor, under normal circumstances, rotor will have matched armature spindle, be with armature spindle
It is assembled together, is not otherwise available.The two added together is exactly rotor assembly.Traditional armature spindle is an entirety, is turned
Sub- axis will be processed by the way of gear shaping, implement more complex, higher cost.In the identical situation of stator structure, rotor
The structure of magnetic pole segmentation dislocation can reduce the cogging torque of motor, so as to improve the vibration and noise of motor.Traditional rotor
Magnetic pole segmentation dislocation method is realized in terms of increase other structures, more complex, the higher cost of processing.
Utility model content
To solve problem of the prior art, the purpose of this utility model is to provide a kind of permanent-magnet motor rotor assembly,
The low permanent-magnet motor rotor assembly of simple structure and reasonable design, manufacturing cost, to realize the good permanent-magnet electric of motor performance
Machine.
The utility model is that technical solution used by solving the problems, such as it is:
A kind of permanent-magnet motor rotor assembly, the rotor press plate including armature spindle, on armature spindle, is mounted on armature spindle
On rotor core, the rotor core by multiple rotor punchings connection form, the armature spindle be equipped with keyway, rotor punching
It is equipped with projection key, rotor core and armature spindle to be cooperatively connected by keyway, the armature spindle is female splined shaft, the armature spindle
Including rotor axle sleeve and spindle nose, rotor axle sleeve is connected with spindle nose, when the rotor core is mounted on armature spindle, in rotor punching
The line of centres at round center and projection key deviates 1.875 degree of horizontal direction, adjacent rotor iron core positive replicate on armature spindle 1
Pressure.
Preferably, the rotor core is made of the riveting of multiple rotor punchings, and riveting is firm, and structure is simple and convenient.
Preferably, the rotor axle sleeve and spindle nose are using hot jacket interference fit connection, and the connection structure is simple, alignment
It is good, biggish axial force, torque and dynamic loading can be born.
Preferably, the rotor axle sleeve is processed by the way of broaching tool, easy processing, is implemented relatively simple.
Preferably, the rotor punching is stamped to form for silicon steel sheet, and silicon steel sheet magnetic property is good, cheap.
The beneficial effects of the utility model are:
By above scheme it is found that armature spindle is in such a way that rotor axle sleeve is connect with spindle nose, processing is more convenient, it is easier to real
Existing, cost is lower.The line of centres of circle center and projection key deviates 1.875 degree of horizontal direction in rotor punching, in this way by rotor
The rotor core of punching composition and the line of centres of projection key deviate 1.875 degree of horizontal direction；The positive replicate of adjacent rotor core
Pressure, rotor core adjacent in this way can mutually stagger 3.75 degree, to form the structure of rotor magnetic pole segmentation dislocation, not have to increase
Add any structure, the processing is simple, is easier to realize.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model rotor axle sleeve and spindle head connecting structure schematic diagram；
Fig. 3 is the utility model rotor punching schematic diagram；
Fig. 4 is the utility model adjacent rotor iron core stacking diagram.
Figure label are as follows: 1- armature spindle, 2- rotor press plate, 3- rotor core, 31- rotor punching, 4- armature spindle
Set, 5- spindle nose.
Specific embodiment:
The utility model is described in further detail with example with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of permanent-magnet motor rotor assembly, including armature spindle 1, be located at armature spindle 1
On rotor press plate 2, the rotor core 3 being mounted on armature spindle 1, the rotor core is by multiple 31 connection groups of rotor punching
At the armature spindle 1 is equipped with keyway, and rotor punching 31 is equipped with projection key, rotor core 3 and armature spindle and is cooperated by keyway
Connection, the armature spindle 1 are female splined shaft, and the armature spindle 1 includes rotor axle sleeve 4 and spindle nose 5, and rotor axle sleeve 4 and spindle nose 5 connect
It connects, when the rotor core 3 is mounted on armature spindle 1, the center of 31 inner circle of rotor punching and the line of centres of projection key deviate
1.875 degree of horizontal direction, adjacent rotor iron core 3 is positive and negative on armature spindle 1 to be laminated.
The rotor core 3 is made of the riveting of multiple rotor punchings 31, and riveting is firm, and structure is simple and convenient.
Using hot jacket interference fit connection, the connection structure is simple, and alignment is good, can hold for the rotor axle sleeve 4 and spindle nose 5
By biggish axial force, torque and dynamic loading.
The rotor axle sleeve 4 is processed by the way of broaching tool, easy processing, is implemented relatively simple.
The rotor punching 3 is stamped to form for silicon steel sheet, and silicon steel sheet magnetic property is good, cheap.
For armature spindle 1 in such a way that rotor axle sleeve 4 is connect with spindle nose 5, processing is more convenient, it is easier to realize, cost is lower.
1.875 degree of center deviation of circle center and projection key in rotor punching 31, the rotor core 3 being made of in this way rotor punching 31 with
1.875 degree of the center deviation of projection key；Adjacent rotor core 3 is positive and negative to be laminated, and rotor core 3 adjacent in this way can be mutually wrong
3.75 degree are opened, to form the structure of rotor magnetic pole segmentation dislocation, is increased without any structure, the processing is simple, is easier to realize.
The reason of deviateing 1.875 degree, what the rotor assembly cooperated is the field frame assembly of 48 slots, corresponding to the every slot of stator
Mechanical angle is 360/48=7.5 °, inclination 1.875 ° mainly from following several respects consider: one, upper and lower two folded rotor cores it
Between, respective poles can be staggered 3.75 °, and 3.75 °=7.5 °/2, wrong 3.75 ° of pole can achieve several with oblique half slot of stator herein
Identical effect, but skewed stator slot technique is more complex, higher cost.If two, corresponding times of 7.5 ° of wrong polar angle degree here
Number, otherwise can generate many clutters in rotor magnetic field coupling, influence noise and the vibration of motor, here 3.75 ° of wrong pole
It is 0.5 times of 7.5 °.It three, can be apart between too upper and lower greatly two folded N, S grades in wrong pole in my rotor assembly scheme
It is too close or have intersection, it will lead to the increasing of permanent magnetic field leakage field in this way, so that the efficiency of motor can be reduced；If wrong pole is too small
It is unobvious to the improvement of cogging torque.
Certainly, above embodiment is not unique restriction to the utility model, other equivalent technical solutions should also be as
Within the protection scope of the invention.
Claims (5)
1. a kind of permanent-magnet motor rotor assembly, including armature spindle (1), the rotor press plate (2) being located on armature spindle (1), installation
Rotor core (3) on armature spindle (1), the rotor core are made of multiple rotor punchings (31) connection, it is characterised in that:
The armature spindle (1) is equipped with keyway, and rotor punching (31) is equipped with projection key, and rotor core (3) and armature spindle pass through keyway
It is cooperatively connected, the armature spindle (1) is female splined shaft, and the armature spindle (1) includes rotor axle sleeve (4) and spindle nose (5), armature spindle
Cover (4) and spindle nose (5) connection, when the rotor core (3) is mounted on armature spindle (1), the center of rotor punching (31) inner circle
Deviate 1.875 degree of horizontal direction with the line of centres of projection key, adjacent rotor iron core (3) is positive and negative on armature spindle (1) to be laminated.
2. according to a kind of permanent-magnet motor rotor assembly described in claim 1, it is characterised in that: the rotor core (3) is by more
A rotor punching (31) riveting composition.
3. a kind of permanent-magnet motor rotor assembly according to claim 1, it is characterised in that: the rotor axle sleeve (4) and
Spindle nose (5) is using interference fit connection.
4. a kind of permanent-magnet motor rotor assembly according to claim 1, it is characterised in that: the rotor axle sleeve (4) is adopted
It is processed with the mode of broaching tool.
5. a kind of permanent-magnet motor rotor assembly according to claim 1, it is characterised in that: the rotor punching (31) is
Silicon steel sheet is stamped to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820730430.2U CN208226702U (en) | 2018-05-15 | 2018-05-15 | A kind of permanent-magnet motor rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820730430.2U CN208226702U (en) | 2018-05-15 | 2018-05-15 | A kind of permanent-magnet motor rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208226702U true CN208226702U (en) | 2018-12-11 |
Family
ID=64508943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820730430.2U Active CN208226702U (en) | 2018-05-15 | 2018-05-15 | A kind of permanent-magnet motor rotor assembly |
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| Country | Link |
|---|---|
| CN (1) | CN208226702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400664A (en) * | 2018-05-15 | 2018-08-14 | 佛山市朗特电机有限公司 | A kind of permanent-magnet motor rotor assembly |
-
2018
- 2018-05-15 CN CN201820730430.2U patent/CN208226702U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400664A (en) * | 2018-05-15 | 2018-08-14 | 佛山市朗特电机有限公司 | A kind of permanent-magnet motor rotor assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Permanent magnet motor rotor assembly Effective date of registration: 20191014 Granted publication date: 20181211 Pledgee: Bank of China Limited by Share Ltd Shunde branch Pledgor: Lang Te Electric Machine Co., Ltd of Foshan City Registration number: Y2019440000114 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |