CN109617304A - A kind of axis and its manufacturing method of used in high-speed motor - Google Patents
A kind of axis and its manufacturing method of used in high-speed motor Download PDFInfo
- Publication number
- CN109617304A CN109617304A CN201910063234.3A CN201910063234A CN109617304A CN 109617304 A CN109617304 A CN 109617304A CN 201910063234 A CN201910063234 A CN 201910063234A CN 109617304 A CN109617304 A CN 109617304A
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- CN
- China
- Prior art keywords
- axle body
- sheath
- magnet steel
- axis
- interference
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Abstract
The invention discloses a kind of axis and its manufacturing method, the axis can be used for high-speed motor.The axis includes the first axle body (1-1), the second axle body (1-2) and the magnet steel (2) between the first axle body (1-1), the second axle body (1-2), and is sheathed on the sheath (3) of the magnet steel (2) periphery.It is connected between the magnet steel (2) and sheath (3) for interference.The first axle body (1-1), the second axle body (1-2) and sheath (3) are made of same material, and the sheath (3) is welded and fixed with the first axle body (1-1), the second axle body (1-2) respectively.Axis of the invention have will not separate at high speed, it is compact specific, have with small vibration, the high feature of stability.
Description
Technical field
The present invention relates to a kind of high-speed motor technical fields, and in particular to a kind of motor shaft of used in high-speed motor and its manufacture
Method, and the motor using the motor shaft.
Background technique
Gas suspension motor, magnetic suspension motor represent the state-of-the-art two kinds of motors in current motor field.This kind of motor solves
Bearing problem, so motor working speed can be designed into 20,000 to 100,000 turns/min, power can be designed into 50-300kw,
Therefore efficiency, which is greatly improved, can improve 30%-50% than conventional motors efficiency, be the maximum trend of the following electromechanics trade, also will
Change the industry for overturning many highly energy-consumings related to this, prospect is considerable.However, both high-speed motors all suffer from one at present
A problem: because rotor speed is higher, temperature rise is big, so motor sheath magnet steel etc. can generate larger deformation under rated speed,
Magnet steel and axis and sheath is caused to have segregation phenomenon, revolving speed is higher, and segregation phenomenon is more obvious, and causes vibration to become larger, has sternly to motor
The destruction of weight, this problem become a huge obstacle on high-speed motor design road.Traditional motor shaft design
Mode not can solve this problem.
Summary of the invention
Present invention seek to address that the motor shaft of high-speed motor magnet steel and the segregative problem of sheath at high speed.
The present invention proposes a kind of axis comprising the first axle body, the second axle body and between the first axle body, the second axle body
Magnet steel, and it is sheathed on the sheath of the magnet steel periphery, the first axle body, the second axle body and sheath are made of same material,
And the sheath is welded and fixed with the first axle body, the second axle body respectively.
According to the preferred embodiment of the present invention, it is connected between the magnet steel and sheath for interference.
According to the preferred embodiment of the present invention, the magnitude of interference between the magnet steel and the sheath is greater than the sheath and exists
The difference of deformation size and the deformation size of the magnet steel at work when work.
According to the preferred embodiment of the present invention, the first axle body and the second axle body all have a termination section, the end
The outer diameter of socket part is greater than other parts, and the sheath is welded and fixed with the termination section.
The present invention also proposes a kind of rotor, including axis above-mentioned.
The present invention also proposes a kind of motor, including the rotor.
The present invention also proposes a kind of method for manufacturing axis, includes the following steps: for the first axle body and the second axle body to be placed in
The two sides of magnet steel；One sheath is sheathed on the outside of the magnet steel with fixation；By the sheath two sides and the first axle body,
The end of the second axle body is welded and fixed.
According to the preferred embodiment of the present invention, the first axle body, the second axle body and sheath are made of same material.
According to the preferred embodiment of the present invention, interference connects between the sheath and the magnet steel.
According to the preferred embodiment of the present invention, the magnitude of interference between the magnet steel and the sheath is greater than the sheath and exists
The difference of deformation size and the deformation size of the magnet steel at work when work.
Motor shaft of the invention have will not separate at high speed, it is compact specific, have with small vibration, stability
High feature.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the high-speed motor axis of one embodiment of the present of invention；
Fig. 2 is the structural schematic diagram of the high-speed motor axis of another embodiment of the invention.
Specific embodiment
This bright exemplary embodiment is more fully described below with reference to accompanying drawings.Although being shown in attached drawing of the invention
Exemplary embodiment, it being understood, however, that the present invention may be realized in various forms, and embodiment is not intended to limit the invention
Range.On the contrary, purpose of providing these embodiments is in order to make those skilled in the art thoroughly understand the present invention.
Term "and/or" herein is only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds
Relationship, for example, " A and/or B " can be indicated: individualism A exists simultaneously A and B, these three situations of individualism B.In addition,
Character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The present invention is directed to the motor shaft of high-speed motor, and the defect that high revolving speed lower magnetic steel is separated with axis and sheath uses
Solid magnet steel, magnet steel and magnet steel sheath elastic conjunction, the method that magnet steel sheath thickeies both sides welding motor shaft, in motor shaft high speed
In the case where operating, the magnitude of interference of design magnet steel and magnet steel sheath is greater than the difference of magnet steel sheath deformation size and magnet steel deformation size
Value, so magnet steel sheath will not be separated with magnet steel；In addition, sheath and two side axis are welded as a whole, same material, deformation is consistent,
It will not separate；To achieve the effect that be firmly combined always under motor shaft high-speed and high-temperature.
Fig. 1 is the structural schematic diagram of the high-speed motor axis of one embodiment of the present of invention.As shown in Figure 1, the high speed electricity
Arbor includes two axis bodies, i.e. the first axle body 1-1, the second axle body 1-2 further include being located at the first axle body 1-1, the second axle body 1-2
Between magnet steel 2 and be sheathed on the sheath 3 of 2 periphery of magnet steel.
In the embodiment, the axis is used as the major part of the rotor of high-speed motor, the main body of two axis bodies
Structure is cylinder.The magnet steel 2 is solid magnet steel, whole also cylindrical.The end of axis body has a termination section,
The outer diameter of termination section 11 is greater than other parts 12.Sheath 3 is welded with the termination section of the first axle body 1-, the second axle body 1-2 respectively as a result,
Fixation is connect, label 4 shown in Fig. 1 is welding portion.
Also, it is connected between magnet steel 2 and sheath 3 for interference.It is described in order to separate sheath will not at work with magnet steel
Magnitude of interference between magnet steel 2 and the sheath 3 is greater than the deformation size of the sheath 3 at work and is working with the magnet steel 2
When deformation size difference.
In order to manufacture above-mentioned axis, following steps are needed:
(1) the first axle body 1-1 and the second axle body 1-2 are placed in the two sides of magnet steel 2.
The step selects axis body material and magnetic steel material appropriate, in general, they are cylindrical member.
(2) sheath 3 is sheathed on the outside of the magnet steel 2 with fixation.
It according to finite element analysis, calculates under motor shaft rated speed operating condition, then the deflection of magnet steel 2 and sheath 3 is set
Count the sheath 3 of interference installation.Magnitude of interference between the magnet steel 2 and the sheath 3 is greater than the deformation of the sheath 3 at work
The difference of size and the deformation size of the magnet steel 2 at work.
(3) 3 two sides of sheath and the end of the first axle body 1-1, the second axle body 1-2 are welded and fixed.
In the step, sheath 3 and both sides axis body are welded as a whole, since sheath 3 and axis body use same material, deformation one
It causes, therefore will not separate at work, to achieve the effect that be firmly combined always under motor shaft high-speed and high-temperature.
Fig. 2 is the structural schematic diagram of the high-speed motor axis of another embodiment of the invention.The embodiment with it is shown in FIG. 1
It slightly distinguishes the position that the difference of embodiment is only sheath 3 and the first axle body 1-1, the end of the second axle body 1-2 is welded and fixed.
In first embodiment shown in Fig. 1, the both ends of sheath 3 only cover the end of the first axle body and the second axle body respectively
A part, in covering position, the end of the first axle body and the second axle body all have one receiving sheath step, so as to axis body
End on the outside of it is concordant with the outside of sheath.Welding portion 4 be located at the first axle body 1-1, the second axle body 1-2 non-covering part and cover
Between cover.
And in second embodiment shown in Fig. 2, the both ends of sheath 3 cover the first axle body 1-1, the second axle body 1-2 it is whole
A end, welding portion 4 be located at sheath inside and the first axle body 1-1, the second axle body 1-2 end between.
It should be appreciated that in order to simplify the present invention and help it will be understood by those skilled in the art that various aspects of the invention,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is retouched in a single embodiment sometimes
It states, or is described referring to single figure.But should not be by the feature that the present invention is construed to include in exemplary embodiment
The essential features of patent claims.
It should be appreciated that can be to progress such as module, unit, the components for including in the equipment of one embodiment of the present of invention certainly
It adaptively changes so that they are arranged in equipment unlike this embodiment.The difference that can include the equipment of embodiment
Module, unit or assembly are combined into module, a unit or assembly, also they can be divided into multiple submodule, subelement or
Sub-component.
Claims (10)
1. a kind of axis, including the first axle body (1-1), the second axle body (1-2) and it is located at the first axle body (1-1), the second axle body (1-2)
Between magnet steel (2), and be sheathed on the sheath (3) of the magnet steel (2) periphery, it is characterised in that:
The first axle body (1-1), the second axle body (1-2) and sheath (3) are made of same material, and the sheath (3) is respectively
It is welded and fixed with the first axle body (1-1), the second axle body (1-2).
2. axis as described in claim 1, it is characterised in that: connected between the magnet steel (2) and sheath (3) for interference.
3. axis as claimed in claim 2, it is characterised in that: the magnitude of interference between the magnet steel (2) and the sheath (3) is greater than
The difference of the sheath (3) deformation size at work and the deformation size of the magnet steel (2) at work.
4. axis as described in claim 1, it is characterised in that: the first axle body (1-1) and the second axle body (1-2) all have one
The outer diameter of a termination section (11), the termination section (11) is greater than other parts (12), and the sheath (3) and the termination section (11) are welded
Connect fixation.
5. a kind of rotor, including axis described in any one of Claims 1-4.
6. a kind of motor, including the rotor described in claim 5.
7. a kind of method for manufacturing axis, includes the following steps:
The first axle body (1-1) and the second axle body (1-2) are placed in the two sides of magnet steel (2)；
One sheath (3) is sheathed on the outside of the magnet steel (2) with fixation；
The sheath (3) two sides and the end of the first axle body (1-1), the second axle body (1-2) are welded and fixed.
8. the method for manufacture axis as claimed in claim 7, it is characterised in that: the first axle body (1-1), the second axle body (1-
2) it is made of with sheath (3) same material.
9. the method for manufacture axis as claimed in claim 8, it is characterised in that: mistake between the sheath (3) and the magnet steel (2)
It is full of connection.
10. the method for manufacture axis as claimed in claim 9, it is characterised in that: between the magnet steel (2) and the sheath (3)
Magnitude of interference be greater than the deformation size of the sheath (3) at work and the deformation size of the magnet steel (2) at work difference
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063234.3A CN109617304A (en) | 2019-01-23 | 2019-01-23 | A kind of axis and its manufacturing method of used in high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063234.3A CN109617304A (en) | 2019-01-23 | 2019-01-23 | A kind of axis and its manufacturing method of used in high-speed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109617304A true CN109617304A (en) | 2019-04-12 |
Family
ID=66018139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910063234.3A Pending CN109617304A (en) | 2019-01-23 | 2019-01-23 | A kind of axis and its manufacturing method of used in high-speed motor |
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| Country | Link |
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| CN (1) | CN109617304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023279588A1 (en) * | 2021-07-07 | 2023-01-12 | 鑫磊压缩机股份有限公司 | Motor rotor, magnetic steel assembling tool and method, and hydrogen energy compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117633A (en) * | 2013-03-22 | 2013-05-22 | 湖南大学 | High-speed permanent magnet synchronous motor and assembly method thereof |
| CN105226872A (en) * | 2015-11-16 | 2016-01-06 | 珠海格力节能环保制冷技术研究中心有限公司 | The manufacture method of rotor axis of electric, motor and rotor axis of electric |
| CN106972658A (en) * | 2017-04-26 | 2017-07-21 | 天津飞旋高速电机科技有限公司 | The rotor structure of magnetic suspension ultrahigh speed magneto |
| CN107465286A (en) * | 2017-08-16 | 2017-12-12 | 贵州航天林泉电机有限公司 | A kind of permanent magnet rotor structure |
-
2019
- 2019-01-23 CN CN201910063234.3A patent/CN109617304A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117633A (en) * | 2013-03-22 | 2013-05-22 | 湖南大学 | High-speed permanent magnet synchronous motor and assembly method thereof |
| CN105226872A (en) * | 2015-11-16 | 2016-01-06 | 珠海格力节能环保制冷技术研究中心有限公司 | The manufacture method of rotor axis of electric, motor and rotor axis of electric |
| CN106972658A (en) * | 2017-04-26 | 2017-07-21 | 天津飞旋高速电机科技有限公司 | The rotor structure of magnetic suspension ultrahigh speed magneto |
| CN107465286A (en) * | 2017-08-16 | 2017-12-12 | 贵州航天林泉电机有限公司 | A kind of permanent magnet rotor structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023279588A1 (en) * | 2021-07-07 | 2023-01-12 | 鑫磊压缩机股份有限公司 | Motor rotor, magnetic steel assembling tool and method, and hydrogen energy compressor |
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Application publication date: 20190412 |