CN108494133A - A kind of novel motor rotor structure - Google Patents
A kind of novel motor rotor structure Download PDFInfo
- Publication number
- CN108494133A CN108494133A CN201810579213.2A CN201810579213A CN108494133A CN 108494133 A CN108494133 A CN 108494133A CN 201810579213 A CN201810579213 A CN 201810579213A CN 108494133 A CN108494133 A CN 108494133A
- Authority
- CN
- China
- Prior art keywords
- rotor
- pressing plate
- magnetic steel
- end ring
- cast aluminium
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 238000004080 punching Methods 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 28
- 239000004411 aluminium Substances 0.000 claims abstract description 23
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 16
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of novel motor rotor structures, including：Rotor punching, magnet steel, rotor magnetic steel pressing plate, fastening bolt and retaining mechanism, wherein the retaining mechanism includes integrally formed cast aluminium end ring and squirrel-cage bar, the cast aluminium end ring is an annulus, and dynamic balancing hole is equipped on the annulus；The magnet steel is installed on the exterior arc surface of the rotor punching, and the both sides of the rotor punching are respectively equipped with the rotor magnetic steel pressing plate, and a cast aluminium end ring is equipped on the inside of each rotor magnetic steel pressing plate；It is equipped with several bolts hole and mouse cage hole on the rotor magnetic steel pressing plate and the rotor punching；The fastening bolt passes through the bolt hole on the rotor magnetic steel pressing plate and the rotor punching, locks rotor magnetic steel pressing plate, prevents magnet steel from moving axially；The squirrel-cage bar and the cast aluminium end ring realize connection with the rotor punching by being interference fitted.The present invention can solve the problems, such as carrying and silicon steel sheet dislocation movement in transportational process.
Description
Technical field
The present invention relates to technical field of motors, particularly relate to a kind of novel motor rotor structure, are primarily adapted for use in tune
Fast permanent magnet synchronous motor.
Background technology
Since compressors rotor is largely in transportational process all without axis, therefore after rotor silicon steel plate stacking
Want axial restraint.In the prior art the rotor of speed governing permanent magnet synchronous motor generally use bolt axial locking, but bolt hole and
Bolt tolerance will tie in, tension and excessively pine it is all not all right；Tension, wears that bolt is bad to be worn；Pine is crossed, the big silicon steel sheet in gap is easy mistake
Displacement is dynamic.And carrying in transportational process, rotor slight impact also be easy to cause silicon steel sheet dislocation movement.
Harm caused by dislocation is mobile is as follows：
1. rotor internal diameter and outer diameter variation, influence the dynamic balancing prepared；
2 cause trouble to client's assembly, and shaft is difficult that set is entered.
Therefore, there is an urgent need for a kind of new technologies of design to improve its problem by the inventor of this case.
Invention content
The present invention is intended to provide a kind of novel motor rotor structure, can solve carrying and silicon steel sheet in transportational process
Misplace mobile problem.
In order to solve the above technical problems, the technical scheme is that：
A kind of novel motor rotor structure, which is characterized in that including：Rotor punching, magnet steel, rotor magnetic steel pressing plate, fastening
Bolt and retaining mechanism, wherein the retaining mechanism includes integrally formed cast aluminium end ring and squirrel-cage bar, the cast aluminium end ring is
One annulus is equipped with dynamic balancing hole on the annulus；The magnet steel is installed on the exterior arc surface of the rotor punching, the rotor punching
The both sides of piece are respectively equipped with the rotor magnetic steel pressing plate, and a cast aluminium end is equipped on the inside of each rotor magnetic steel pressing plate
Ring；It is equipped with several bolts hole and mouse cage hole on the rotor magnetic steel pressing plate and the rotor punching；The fastening bolt passes through
Bolt hole on the rotor magnetic steel pressing plate and the rotor punching locks rotor magnetic steel pressing plate, prevents magnet steel from moving axially；Institute
It states squirrel-cage bar and the cast aluminium end ring and realizes connection by being interference fitted with the rotor punching.
Preferably, the cast aluminium end ring and the squirrel-cage bar are integrally formed by high-pressure injection aluminum water.
Preferably, the rotor magnetic steel pressing plate is alloy aluminum or non-magnetic steel plate.
Preferably, the rotor punching is silicon steel sheet.
Using above-mentioned technical proposal, the present invention includes at least following advantageous effect：
Novel motor rotor structure of the present invention, with the end ring of cast aluminum construction instead of former bolt axial locking knot
Structure, i.e., with a kind of over-surplus fit structure instead of a kind of clearance fit structure (tolerance fit of silicon steel sheet and locking parts).
This structure can keep silicon steel sheet axial locking and solve silicon steel sheet dislocation movement.
Description of the drawings
Fig. 1 is the structural schematic diagram of novel motor rotor structure of the present invention；
Fig. 2 is the vertical view of novel motor rotor structure of the present invention；
Fig. 3 is the structural schematic diagram of retaining mechanism of the present invention.
Wherein：1. rotor punching, 2. magnet steel, 3. rotor magnetic steel pressing plates, 4. fastening bolts, 5. cast aluminium end ring, 6. squirrel-cage bars,
7. shaft hole, 8. mouse cage holes, 9. bolts hole, 10. dynamic balancing holes.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 3, a kind of novel motor rotor structure to meet of the invention, which is characterized in that including：Turn
Sub- punching 1, magnet steel 2, rotor magnetic steel pressing plate 3, fastening bolt 4 and retaining mechanism, wherein the retaining mechanism includes being integrally formed
Cast aluminium end ring 5 and squirrel-cage bar 6, the cast aluminium end ring 5 be an annulus, on the annulus be equipped with dynamic balancing hole 10；The magnet steel 2
It is installed on the exterior arc surface of the rotor punching 1, the both sides of the rotor punching 1 are respectively equipped with the rotor magnetic steel pressing plate 3,
The inside of each rotor magnetic steel pressing plate 3 is equipped with a cast aluminium end ring 5；The rotor magnetic steel pressing plate 3 and the rotor punching 1
On be equipped with a shaft hole 7, several bolts hole 9 and mouse cage hole 8；The fastening bolt 4 passes through the rotor magnetic steel pressing plate 3 and institute
The bolt hole 9 on rotor punching 1 is stated, locking rotor magnetic steel pressing plate 3 prevents magnet steel 2 from moving axially；The squirrel-cage bar 6 and described
Cast aluminium end ring 5 realizes connection with the rotor punching 1 by being interference fitted, and silicon steel sheet is made to become an entirety.
Preferably, the cast aluminium end ring 5 and the squirrel-cage bar 6 are integrally formed by high-pressure injection aluminum water.Specifically, pass through
In mouse cage hole 8 in die casting machine high-pressure injection aluminum water to rotor punching 1 and in rotor top ring mold, rotor lower loop mold
It is interior, it is cooled and shaped as squirrel-cage bar 6 and cast aluminium end ring 5, squirrel-cage bar 6 and cast aluminium end ring 5 and rotor punching 1 are interference fits.
Preferably, the rotor magnetic steel pressing plate 3 is alloy aluminum or non-magnetic steel plate, is locked and pushes down at both ends convenient for it
Magnet steel prevents magnet steel from moving axially.
Preferably, the rotor punching 1 is silicon steel sheet.It is further preferable that the rotor punching 1 be 0.35mm or
The silicon steel sheet of 0.5mm is stamped to form.
The operation principle of the present embodiment is：With the end ring 5 of cast aluminum construction instead of former bolt axial locking structure, i.e.,
With a kind of over-surplus fit structure instead of a kind of clearance fit structure (tolerance fit of silicon steel sheet and locking parts).This knot
Structure can keep the axial locking of silicon steel sheet and solve the problems, such as the dislocation movement of silicon steel sheet.Do not changing motor performance
Under the premise of, improve the mechanical performance in motor transportational process.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (4)
1. a kind of novel motor rotor structure, which is characterized in that including：Rotor punching, magnet steel, rotor magnetic steel pressing plate, fastening spiral shell
Bolt and retaining mechanism, wherein the retaining mechanism includes integrally formed cast aluminium end ring and squirrel-cage bar, the cast aluminium end ring is one
Annulus is equipped with dynamic balancing hole on the annulus；The magnet steel is installed on the exterior arc surface of the rotor punching, the rotor punching
Both sides be respectively equipped with the rotor magnetic steel pressing plate, be equipped with a cast aluminium end ring on the inside of each rotor magnetic steel pressing plate；
It is equipped with several bolts hole and mouse cage hole on the rotor magnetic steel pressing plate and the rotor punching；The fastening bolt passes through described
Bolt hole on rotor magnetic steel pressing plate and the rotor punching locks rotor magnetic steel pressing plate, prevents magnet steel from moving axially；The mouse
Cage item and the cast aluminium end ring realize connection with the rotor punching by being interference fitted.
2. novel motor rotor structure as described in claim 1, it is characterised in that：The cast aluminium end ring and the squirrel-cage bar are logical
Cross the integrated molding of high-pressure injection aluminum water.
3. novel motor rotor structure as claimed in claim 1 or 2, it is characterised in that：The rotor magnetic steel pressing plate is alloy
Aluminium or non-magnetic steel plate.
4. novel motor rotor structure as described in any one of claims 1-3, it is characterised in that：The rotor punching is silicon steel
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579213.2A CN108494133A (en) | 2018-06-07 | 2018-06-07 | A kind of novel motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579213.2A CN108494133A (en) | 2018-06-07 | 2018-06-07 | A kind of novel motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108494133A true CN108494133A (en) | 2018-09-04 |
Family
ID=63342070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810579213.2A Pending CN108494133A (en) | 2018-06-07 | 2018-06-07 | A kind of novel motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108494133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112600322A (en) * | 2020-11-16 | 2021-04-02 | 超音速智能技术(杭州)有限公司 | Small-size motor closed slot cast aluminum rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000209799A (en) * | 1999-01-07 | 2000-07-28 | Toshiba Corp | Permanent magnet motor and manufacture thereof |
| CN201478896U (en) * | 2009-06-23 | 2010-05-19 | 无锡市华东钢业机械有限公司 | Magnetic steel falling prevention mechanism of permasyn motor rotor |
| CN202997739U (en) * | 2012-12-05 | 2013-06-12 | 深圳市大地和电气有限公司 | Permanent magnet motor rotor structure |
| CN106487129A (en) * | 2016-11-30 | 2017-03-08 | 山东润国机电设备股份有限公司 | A kind of permanent magnet brushless synchronous motor |
| CN208423973U (en) * | 2018-06-07 | 2019-01-22 | 苏州贝得科技有限公司 | A kind of novel motor rotor structure |
-
2018
- 2018-06-07 CN CN201810579213.2A patent/CN108494133A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000209799A (en) * | 1999-01-07 | 2000-07-28 | Toshiba Corp | Permanent magnet motor and manufacture thereof |
| CN201478896U (en) * | 2009-06-23 | 2010-05-19 | 无锡市华东钢业机械有限公司 | Magnetic steel falling prevention mechanism of permasyn motor rotor |
| CN202997739U (en) * | 2012-12-05 | 2013-06-12 | 深圳市大地和电气有限公司 | Permanent magnet motor rotor structure |
| CN106487129A (en) * | 2016-11-30 | 2017-03-08 | 山东润国机电设备股份有限公司 | A kind of permanent magnet brushless synchronous motor |
| CN208423973U (en) * | 2018-06-07 | 2019-01-22 | 苏州贝得科技有限公司 | A kind of novel motor rotor structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112600322A (en) * | 2020-11-16 | 2021-04-02 | 超音速智能技术(杭州)有限公司 | Small-size motor closed slot cast aluminum rotor |
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