CN109888949A - A kind of rotor core and its installation method for permanent magnet synchronous motor - Google Patents
A kind of rotor core and its installation method for permanent magnet synchronous motor Download PDFInfo
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- CN109888949A CN109888949A CN201910163387.5A CN201910163387A CN109888949A CN 109888949 A CN109888949 A CN 109888949A CN 201910163387 A CN201910163387 A CN 201910163387A CN 109888949 A CN109888949 A CN 109888949A
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- iron core
- permanent magnet
- connecting column
- rotor
- core
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Abstract
The invention discloses a kind of rotor cores for permanent magnet synchronous motor, including rotor core, it further include connection structure, connection structure includes connecting column and fixture nut, rotor core includes lower iron core, middle iron core and upper iron core, and the first permanent magnet wears groove is provided on lower iron core, is fixedly welded with connecting column in the middle part of lower iron core, it is provided with mounting groove under the second permanent magnet wears groove and permanent magnet on middle iron core, is provided with mounting groove on third permanent magnet wears groove and permanent magnet on upper iron core；Using a kind of above-mentioned installation method of the rotor core for permanent magnet synchronous motor, the fixation of iron core under including the following steps: 1)；2) installation of iron core and middle iron core under；3) installation of permanent magnet；4) installation and fixation of upper iron core；The installation of permanent magnet and rotor core is very secured, has stronger structural stability can, this rotor core can reduce the wind frictional resistance that motor is subject to since surface is smooth, mitigate motor noise during following motor high speed rotation.
Description
Technical field
The invention belongs to motor accessory production fields, and in particular to a kind of rotor core for permanent magnet synchronous motor and its
Installation method.
Background technique
New-energy automobile mostly uses internal permanent magnet synchronous motor with driving motor in recent years, which has power density
It is high, mechanical property is good, the higher advantage of the range of speeds, extensive concern and application have been obtained in drive system of electric automobile.
Existing frequently-used permanent-magnetic synchronous motor rotor iron core is divided into surface-type and plug-in type, and surface-type rotor structure is divided into convex again
Formula and embedded, permanent magnet offer flow direction out.Wherein, convex type rotor core surface mount tile magnet steel, and permanent magnetism
Between external surface and stator core inner circle generally only cover with the non-magnetic cylinder of protective effect or permanent magnetism magnetic pole surface packet with
No latitude glass tape makees protective layer, be in this way when avoiding exceeding certain revolving speed magnet steel in the collective effect of centrifugal force and electromagnetism torsion
Lower disengaging rotor core, which not only adds motor costs, are added to production process, and the addition protection dress on the outside of magnetic pole
It sets, keeps rotor surface not smooth enough, so as to cause motor during high speed rotation, the wind of motor can be caused to rub and noise.
Summary of the invention
Present invention aims at a kind of turn for permanent magnet synchronous motor is provided for deficiency of the prior art
Then the technical solution of sub- iron core and its installation method is pressed from both sides permanent magnet by the way that traditional rotor core is divided into three-layer set
It is located between upper iron core and middle iron core, so that this rotor core and the installation of permanent magnet had not only needed additional protective layer, but also can make
It installs very convenient, rotor core is installed using method of the invention, so that without the exposed table in rotor core of connecting portion
Face, rotor surface is smooth complete, and the installation of permanent magnet and rotor core is very secured, without adding safeguard measure, has relatively strong
Structural stability can, this rotor core can reduce motor during following motor high speed rotation, since surface is smooth
The wind frictional resistance being subject to, mitigates motor noise.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of turn for permanent magnet synchronous motor
Sub- iron core, including rotor core, it is characterised in that: further include connection structure, connection structure includes connecting column and fixture nut, is turned
Sub- iron core includes lower iron core, middle iron core and upper iron core, and the outer diameter of the outer diameter of lower iron core, the outer diameter of middle iron core and lower iron core is homogeneous
Deng being provided with the first permanent magnet wears groove on lower iron core, connecting column be fixedly welded in the middle part of lower iron core, middle iron core is mounted on lower iron
The top of the heart, middle iron core are set on connecting column, and the bottom setting of middle iron core is fluted, are provided with bulge loop, bulge loop on lower iron core
Installation in a groove, is provided with upper iron core, upper iron core is set on connecting column, is provided with second on middle iron core above middle iron core
Mounting groove under permanent magnet wears groove and permanent magnet, mounting groove is looped around the outside of the second permanent magnet wears groove under permanent magnet, under permanent magnet
The depth of mounting groove is the half of middle iron core thickness, is provided with mounting groove on third permanent magnet wears groove and permanent magnet on upper iron core,
The lower surface of upper iron core is arranged in mounting groove on permanent magnet, and the depth of mounting groove is the half of upper iron core thickness on permanent magnet, Gu
Determine the top that nut is fixedly connected on connecting column；The rotor core that the present apparatus refers to, is divided into three-layer set, by lower iron core
Connecting column is set, lower iron core, middle iron core be fixedly connected with connecting column respectively with upper iron core, realize lower iron core, middle iron core with it is upper
Being detachably connected between iron core, upper iron core, middle iron core are identical with the outer diameter of lower iron core, so that outer diameter is overlapped after three's connection,
It ensure that the outer surface of rotor core is smooth, by the design of bulge loop and groove, make the company of middle iron core and lower iron core
Connect even closer, middle part can be had the permanent magnet card of protrusion by mounting groove from upper and lower two sides on mounting groove and permanent magnet under permanent magnet
Firmly, the top of the permanent magnet passes through the exposed surface in upper iron core of third permanent magnet wears groove, by solid with fixture nut from top
It is fixed, keep the connection of upper iron core and connecting column stronger, to make being connected firmly for permanent magnet and rotor core.
Further, it is provided with first rotating shaft perforation in the middle part of lower iron core, is provided with the first rotor wire casing on the outside of lower iron core,
The outside of the first permanent magnet wears groove is arranged in the first rotor wire casing；First rotating shaft perforation ensure that the motor shaft of magneto can
Across lower iron core, while being arranged in when installing connecting column for first rotating shaft perforation plays the role of reference line, makes connecting column
Foundation is installed, keeps the installation of connecting column secure, the first rotor wire casing facilitates the shuttle of motor wiring, and butted line plays
Gather and storage acts on.
Further, it is provided with the perforation of the second shaft in the middle part of middle iron core, is provided with the on the inner sidewall of the second shaft perforation
Two internal screw threads, the second rotor slot is provided on the outside of middle iron core, and the outer of the second permanent magnet wears groove is arranged in the second rotor slot
Side, the size of the second rotor slot and the size of the first rotor wire casing match；The perforation of second shaft ensure that middle iron core can be with
Connecting column is fixedly connected, and the setting of the second internal screw thread enables middle iron core to be fixedly connected by way of rotation with connecting column, the
Two rotor slots facilitate the shuttle of motor wiring, and butted line plays the role of gathering and storage.
Further, it is provided with the perforation of third shaft in the middle part of upper iron core, is provided with the on the inner sidewall of third shaft perforation
Three internal screw threads, third trochanter wire casing is provided on the outside of upper iron core, and the outer of third permanent magnet wears groove is arranged in third trochanter wire casing
Side, the size of third trochanter wire casing and the size of the second rotor slot match；The perforation of third shaft ensure that upper iron core can be with
Connecting column is fixedly connected, and the setting of third internal screw thread enables upper iron core to be fixedly connected by way of rotation with connecting column, the
Triple-spool wire casing facilitates the shuttle of motor wiring, and butted line plays the role of gathering and storage.
Further, the 4th shaft that is internally provided with of connecting column is perforated；The setting of 4th shaft perforation makes magneto
Motor shaft can pass through connecting column.
Further, the first internal screw thread is provided on the inner sidewall of fixture nut, the outer diameter of fixture nut is greater than connecting column
Outer diameter, the upper surface of fixture nut and the upper surface flush of connecting column；The setting of first internal screw thread can make fixture nut with
External screw thread on the outside of connecting column is fixedly connected, to realize fixture nut consolidating to the upper iron core of lower section, middle iron core and lower iron core
It is fixed.
Further, external screw thread, externally threaded size and spiral shell in the first internal screw thread, second are provided on the lateral wall of connecting column
Line and third internal screw thread match；After fixture nut is mounted on connecting column, the upper surface of fixture nut and the upper table of connecting column
Face flush, therefore the smooth in appearance of present apparatus rotor core, the noise that motor can be made to work mitigate.
Using a kind of installation method of such as above-mentioned rotor core for permanent magnet synchronous motor, it is characterised in that: including such as
Lower step:
1) fixation of iron core under:
A. position-arresting disk is placed on station first, head diameter is then selected to be greater than positioning bore dia and less than the 4th
Position-arresting disk is fixed on station by the bolt of shaft perforation, and screwing bolts, and the bottom edge of bolt head is made to be tightly attached to position-arresting disk
Upper surface；Position-arresting disk can be made to be fixedly connected with station by the fixation of bolt, carry out rotor core by position-arresting disk
Installation, is not required to for lower iron core connecting with station, can either realize the fixation of lower iron core, and connect without increasing auxiliary to lower iron core
It connects to realize and be connected and fixed with station, ensure that the smoothness on rotor core surface；
B. then lower iron core is placed on position-arresting disk, adjusts the position of lower iron core, bolt head is made to be fully located at first
The inside of shaft perforation, then from the top of lower iron core, pressing makes the lower surface of lower iron core be tightly attached to the upper surface of position-arresting disk, and
Adjustment makes the first permanent magnet wears groove on lower iron core and the intubation mounting groove aligned in position on position-arresting disk, then surround fixed ring
In the outside of lower iron core, and tightening fixed ring is tightly attached to the outer wall of lower iron core in fixed ring, then connecting rod is passed through fixed ring
The mounting hole of end, and realized to the position-limiting action of fixed ring, will finally be fixed across the connecting hole at connecting rod both ends with latch fitting
The bottom of ring and the connecting portion of position-arresting disk are welded and fixed；Lower iron core is placed on position-arresting disk first, is the peace to lower iron core
Holding position plays preliminary determination, can make preset intubation mounting groove on the first permanent magnet wears groove and the position-arresting disk on lower iron core
Alignment, it is exposed so as to be intubated, convenient for the connection of later period permanent magnetism mould and intubation, using fixed ring outside lower iron core
Side wall is by lower iron core fixed ring around being then fixedly welded, realize indirectly to lower iron core position by fixed ring and position-arresting disk again
It is fixed, it can prevent the position of the iron core at present of iron core, upper iron core and permanent magnet in an installation from changing, so that installation be made to become
Amount reduces, so that it is guaranteed that the installation of rotor core is more accurate；
2) installation of iron core and middle iron core under:
A. connecting column is placed on lower iron core first, the side wall for then making the 4th shaft of connecting column perforate and lower iron core
First rotating shaft perforation side wall alignment, and the bottom of connecting column is welded on lower iron core；By by connecting column and lower iron core
Alignment can be such that the perforation of the 4th shaft is aligned with first rotating shaft perforation, ensure that the shaft of motor can pass through rotor iron
The heart；
B. then middle iron core is placed on connecting column, makes the second internal screw thread on the second shaft perforated side wall of middle iron core
It is connect with the external screw thread on connecting column, middle iron core is made to rotate down to the lower surface of middle iron core and the upper table of lower iron core along connecting column
Face contact, and ensure that the bulge loop on lower iron core is located in the groove of middle iron core lower surface, that is, observe by the naked eye invisible bulge loop；
By the way that middle iron core to be rotatably mounted on connecting column, can be realized the fixed installation of middle iron core Yu lower iron core, at the same middle iron core with
No longer need other auxiliary connecting portions that can make middle iron core and upper iron core by the clamping of bulge loop and groove between lower iron core
Connection it is even closer；
C. prefabricated permanent magnetism mould is inserted from above into respectively again in the intubation that limit pan bottom is set, from permanent magnet
The top pressing permanent magnetism mould of mold fully enters the intubation being arranged in intubation mounting groove in the slot of permanent magnet bottom,
If the second permanent magnet wears groove stops the connection of permanent magnetism mould and intubation, the position of iron core is until intubation is complete in readjustment
Into in slot；The size for the slot that the length of preset intubation is arranged with permanent magnet mold bottom matches, if intubation is complete
Into in slot, can illustrate that permanent magnetism mould installs in predetermined angular, if intubation cannot completely into slot,
Then illustrate the reasons such as the installation run-off the straight of permanent magnetism mould, permanent magnetism mould need to be removed and re-start installation, permanent magnetism mould
It can be used to the installation site of iron core in examining, it is ensured that the installation of middle iron core is overlapped with lower iron core；
D. permanent magnetism mould is finally removed；
3) installation of permanent magnet:
Successively permanent magnet is put into the second permanent magnet wears groove, it is ensured that permanent magnet is placed straight up and the protrusion of permanent magnet
Lower surface is contacted with the bottom of mounting groove under permanent magnet；
4) installation and fixation of upper iron core:
A., third connecting rod perforation in the middle part of upper iron core is placed on to the outside of connecting column first, makes third internal screw thread along even
It connects the external screw thread on the outside of column to move down, it is ensured that the upper end protrusion of permanent magnet is located on permanent magnet in mounting groove, then will be upper
Iron core is rotated along connecting column to that can not rotate, i.e., third trochanter wire casing needs to be overlapped with the second rotor slot of lower section；Permanent magnet
Protrusion is connected on permanent magnet under mounting groove and permanent magnet between mounting groove, so that permanent magnet is fixed on upper iron core and middle iron core
Between, the top of permanent magnet passes through the second permanent magnet wears groove and third permanent magnet wears groove and the exposed outside in upper iron core；
B. fixture nut is moved down along connecting column rotation, guarantees that the external screw thread on the first internal screw thread and connecting column connects
It connects, clasps fixture nut using rotation tool and be rotated down along external screw thread direction, until fixture nut can not rotate, and check solid
Determine the upper surface of nut, it is ensured that the upper surface of fixture nut is not higher than the upper surface of connecting column；Fixture nut from top with connect
Column is fixed, and preventing from loosening using upper iron core, middle iron core and lower generation between iron core and connecting column for a long time influences rotor core
Accuracy；
C. finally the connecting sewing between upper iron core, middle iron core and lower iron core three is sealed with glue, it is ensured that rotor
The fastness of iron core, and fixed ring is removed；Glue sealing is carried out to the connecting sewing of three, can guarantee rotor core surface
Smoothness.
The present invention is by adopting the above-described technical solution, have the advantages that
The rotor core that the present apparatus refers to, is divided into three-layer set, by being arranged connecting column on lower iron core, lower iron core, in
Iron core is fixedly connected with connecting column respectively with upper iron core, realizes being detachably connected between lower iron core, middle iron core and upper iron core,
Upper iron core, middle iron core are identical with the outer diameter of lower iron core, so that outer diameter is overlapped after three's connection, it ensure that the outside of rotor core
Surface is smooth, by the design of bulge loop and groove, keeps the connection of middle iron core and lower iron core even closer, installs under permanent magnet
Mounting groove can have the permanent magnet of protrusion to block from upper and lower two sides by middle part on slot and permanent magnet, and the top of the permanent magnet passes through the
The exposed surface in upper iron core of three permanent magnet wears groove makes the company of upper iron core and connecting column by fixing from top with fixture nut
Connect it is stronger, to make being connected firmly for permanent magnet and rotor core.
The present invention provides a kind of rotor core for permanent magnet synchronous motor and its technical solutions of installation method, pass through
Traditional rotor core is divided into three-layer set, then permanent magnet is folded between upper iron core and middle iron core, so that this rotor
The installation of iron core and permanent magnet had not only needed additional protective layer, but also can make to install very convenient, was installed using method of the invention
Rotor core, so that rotor surface is smooth complete, permanent magnet and rotor iron without the connecting portion exposed surface in rotor core
The installation of the heart is very secured, without adding safeguard measure, has stronger structural stability can, this rotor core is following motor
During high speed rotation, it can reduce the wind frictional resistance that motor is subject to since surface is smooth, mitigate motor noise.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is a kind of structural schematic diagram of the rotor core for permanent magnet synchronous motor of the present invention；
Fig. 2 is the connection schematic diagram of lower iron core and connecting column in the present invention；
Fig. 3 is the lower surface configuration schematic diagram of middle iron core in the present invention；
Fig. 4 is the surface structure schematic diagram of middle iron core in the present invention；
Fig. 5 is the lower surface configuration schematic diagram of upper iron core in the present invention；
Fig. 6 is the surface structure schematic diagram of upper iron core in the present invention；
Fig. 7 is the connection schematic diagram of position-arresting disk and station in the present invention；
Fig. 8 is the mounting structure schematic diagram of position-arresting disk and lower iron core in the present invention；
Fig. 9 is the mounting structure schematic diagram of lower iron core and middle iron core in the present invention；
Figure 10 is the connection schematic diagram of middle iron core and permanent magnet in the present invention；
Figure 11 is the scheme of installation of permanent magnetism mould and intubation in the present invention；
Figure 12 is the installation explosive view of middle iron core, upper iron core and permanent magnet in the present invention.
In figure: 1- rotor core；2- connection structure；3- connecting column；4- fixture nut；Iron core under 5-；Iron core in 6-；On 7-
Iron core；8- the first permanent magnet wears groove；9- groove；10- bulge loop；11- the second permanent magnet wears groove；Mounting groove under 12- permanent magnet；13-
Third permanent magnet wears groove；Mounting groove on 14- permanent magnet；The perforation of 15- first rotating shaft；16- the first rotor wire casing；The second shaft of 17-
Perforation；The second internal screw thread of 18-；The second rotor slot of 19-；The perforation of 20- third shaft；21- third internal screw thread；22- third trochanter
Wire casing；The perforation of the 4th shaft of 23-；The first internal screw thread of 24-；25- external screw thread；26- position-arresting disk；27- station；28- bolt；29-
Fixed ring；30- mounting hole；31- connecting rod；32- connecting hole；33- is intubated mounting groove；34- intubation；35- permanent magnetism mould；36-
Slot；37- permanent magnet；38- protrusion；39- latch fitting.
Specific embodiment
It as shown in Figures 1 to 6, is a kind of rotor core for permanent magnet synchronous motor of the present invention, including rotor core 1,
It further include connection structure 2, connection structure 2 includes connecting column 3 and fixture nut 4, and rotor core 1 includes lower iron core 5, middle iron core 6
It is equal with the outer diameter of upper iron core 7, the outer diameter of lower iron core 5, the outer diameter of middle iron core 6 and lower iron core 5, is provided on lower iron core 5
One permanent magnet wears groove 8, the middle part of lower iron core 5 are fixedly welded with connecting column 3, and middle iron core 6 is mounted on the top of lower iron core 5, middle iron
The heart 6 is set on connecting column 3, the bottom setting fluted 9 of middle iron core 6, is provided with bulge loop 10 on lower iron core 5, bulge loop 10 is installed
In groove 9, the top of middle iron core 6 is provided with upper iron core 7, and upper iron core 7 is set on connecting column 3, and is provided on middle iron core 6
Mounting groove 12 under two permanent magnet wears grooves 11 and permanent magnet, mounting groove 12 is looped around the outer of the second permanent magnet wears groove 11 under permanent magnet
Side, the depth of mounting groove 12 is the half of middle 6 thickness of iron core under permanent magnet, is provided with third permanent magnet wears groove 13 on upper iron core 7
With mounting groove 14 on permanent magnet, the lower surface of upper iron core 7 is arranged in mounting groove 14 on permanent magnet, the depth of mounting groove 14 on permanent magnet
Degree is the half of 7 thickness of upper iron core, and fixture nut 4 is fixedly connected on the top of connecting column 3；The rotor core 1 that the present apparatus refers to,
Be divided into three-layer set, by being arranged connecting column 3 on lower iron core 5, lower iron core 5, middle iron core 6 and upper iron core 7 respectively with connecting column 3
It is fixedly connected, realizes being detachably connected between lower iron core 5, middle iron core 6 and upper iron core 7, upper iron core 7, middle iron core 6 and lower iron
The outer diameter of the heart 5 is identical, so that outer diameter is overlapped after three's connection, it ensure that the outer surface of rotor core 1 is smooth, passes through
The design of bulge loop 10 and groove 9 keeps the connection of middle iron core 6 and lower iron core 5 even closer, mounting groove 12 and permanent magnet under permanent magnet
Upper mounting groove 14 can have the permanent magnet 37 of protrusion 38 to block from upper and lower two sides by middle part, and the top of the permanent magnet 37 passes through third
The exposed surface in upper iron core 7 of permanent magnet wears groove 13 makes upper iron core 7 and connecting column 3 by fixing from top with fixture nut 4
Connection it is stronger, to make being connected firmly for permanent magnet 37 and rotor core 1.The middle part of lower iron core 5 is provided with first turn
Axis perforation 15, the outside of lower iron core 5 are provided with the first rotor wire casing 16, and the first rotor wire casing 16 is arranged in the first permanent magnet wears groove
8 outside；First rotating shaft perforation 15 ensure that the motor shaft of magneto can pass through lower iron core 5, while first rotating shaft is perforated
15 play the role of reference line when installation connecting column 3 is arranged in, and make the installation of connecting column 3 foundation, make connecting column 3
Install secure, the first rotor wire casing 16 facilitates the shuttle of motor wiring, and butted line plays the role of gathering and storage.Middle iron core
6 middle part is provided with the second shaft perforation 17, is provided with the second internal screw thread 18, middle iron core on the inner sidewall of the second shaft perforation 17
6 outside is provided with the second rotor slot 19, and the second rotor slot 19 is arranged in the outside of the second permanent magnet wears groove 11, and second turn
The size of sub-line slot 19 and the size of the first rotor wire casing 16 match；Second shaft perforation 17 ensure that middle iron core 6 can be with company
Column 3 is connect to be fixedly connected, the setting of the second internal screw thread 18 enables middle iron core 6 to be fixedly connected by way of rotation with connecting column 3,
Second rotor slot 19 facilitates the shuttle of motor wiring, and butted line plays the role of gathering and storage.The middle part of upper iron core 7 is arranged
There is third shaft perforation 20, third internal screw thread 21, the outside setting of upper iron core 7 are provided on the inner sidewall of third shaft perforation 20
There is third trochanter wire casing 22, the outside of third permanent magnet wears groove 13 is arranged in third trochanter wire casing 22, third trochanter wire casing 22
Size and the size of the second rotor slot 19 match；Third shaft perforation 20 ensure that upper iron core 7 can be with the fixed company of connecting column 3
It connects, the setting of third internal screw thread 21 enables upper iron core 7 to be fixedly connected by way of rotation with connecting column 3, third trochanter line
Slot 22 facilitates the shuttle of motor wiring, and butted line plays the role of gathering and storage.Connecting column 3 is internally provided with the 4th shaft
Perforation 23；The setting of 4th shaft perforation 23 enables the motor shaft of magneto to pass through connecting column 3.The inside of fixture nut 4
The first internal screw thread 24 is provided on wall, the outer diameter of fixture nut 4 is greater than the outer diameter of connecting column 3, the upper surface of fixture nut 4 and company
Connect the upper surface flush of column 3；The setting of first internal screw thread 24 can make the external screw thread 25 in 3 outside of fixture nut 4 and connecting column
It is fixedly connected, to realize the fixation of the upper iron core 7, middle iron core 6 and lower iron core 5 of 4 pairs of lower sections of fixture nut.Outside connecting column 3
External screw thread 25, the size of external screw thread 25 and the first internal screw thread 24, the second internal screw thread 18 and third internal screw thread 21 are provided on side wall
Match；After fixture nut 4 is mounted on connecting column 3, the upper surface of fixture nut 4 and the upper surface flush of connecting column 3, because
The smooth in appearance of this present apparatus rotor core 1, the noise that motor can be made to work mitigate.
As shown in Fig. 7 to Figure 12, using a kind of installation method of such as above-mentioned rotor core for permanent magnet synchronous motor, packet
Include following steps:
1) fixation of iron core 5 under:
A. position-arresting disk 26 is placed on station 27 first, head diameter is then selected to be greater than positioning bore dia and be less than
Position-arresting disk 26 is fixed on station 27 by the bolt 28 of the 4th shaft perforation 23, and screwing bolts 28, makes 28 head of bolt
Bottom edge is tightly attached to the upper surface of position-arresting disk 26；Position-arresting disk 26 can be made to be fixedly connected with station 27 by the fixation of bolt 28,
The installation that rotor core 1 is carried out by position-arresting disk 26, is not required to for lower iron core 5 connecting with station 27, can either realize lower iron core 5
Fixation, and be connected and fixed with realizing with station 27 without increasing auxiliary connection to lower iron core 5, ensure that rotor core 1
The smoothness on surface；
B. then lower iron core 5 is placed on position-arresting disk 26, adjusts the position of lower iron core 5, makes the complete position in 28 head of bolt
In the inside of first rotating shaft perforation 15, then from the top of lower iron core 5, pressing makes the lower surface of lower iron core 5 be tightly attached to position-arresting disk 26
Upper surface, and adjust and make the first permanent magnet wears groove 8 on lower iron core 5 and 33 position pair of intubation mounting groove on position-arresting disk 26
Together, fixed ring 29 is then looped around to the outside of lower iron core 5, and tightening fixed ring 29 makes the outer wall of lower iron core 5 be tightly attached to fixation
On ring 29, then by connecting rod 31 across the mounting hole 30 of 29 end of fixed ring, and with latch fitting 39 across the company at 31 both ends of connecting rod
Hole 32 is connect, realizes the position-limiting action to fixed ring 29, finally welds the connecting portion of the bottom of fixed ring 29 and position-arresting disk 26
It is fixed；Lower iron core 5 is placed on position-arresting disk 26 first, is that preliminary determination is played to the installation site of lower iron core 5, can make
The first permanent magnet wears groove 8 on lower iron core 5 is aligned with intubation mounting groove 33 preset on position-arresting disk 26, so as to be intubated 34
It is exposed, convenient for the connection of later period permanent magnetism mould 35 and intubation 34, using fixed ring 29 from the lateral wall of lower iron core 5 by lower iron core
Then fixed ring 29 and position-arresting disk 26 around being fixedly welded again, realize the fixation to lower 5 position of iron core, energy indirectly by 5 fixed rings
Enough prevent the position of the iron core 5 at present of iron core 6, upper iron core 7 and permanent magnet 37 in an installation from changing, to make to install variable
Reduce, so that it is guaranteed that the installation of rotor core 1 is more accurate；
2) installation of iron core 5 and middle iron core 6 under:
A. connecting column 3 is placed on lower iron core 5 first, then make connecting column 3 the 4th shaft perforate 23 side wall with
The side wall alignment of the first rotating shaft perforation 15 of lower iron core 5, and the bottom of connecting column 3 is welded on lower iron core 5；By that will connect
Column 3 is aligned with lower iron core 5, and the 4th shaft perforation 23 can be made to be aligned with first rotating shaft perforation 15, ensure that the shaft energy of motor
Enough pass through rotor core 1；
B. then middle iron core 6 is placed on connecting column 3, makes second on the second shaft 17 side walls of perforation of middle iron core 6
Internal screw thread 18 is connect with the external screw thread 25 on connecting column 3, and middle iron core 6 is made to rotate down to the lower surface of middle iron core 6 along connecting column 3
It is contacted with the upper surface of lower iron core 5, and ensures that the bulge loop 10 on lower iron core 5 is located in the groove 9 of middle 6 lower surface of iron core, i.e., it is logical
It crosses and visually observes invisible bulge loop 10；By the way that middle iron core 6 to be rotatably mounted on connecting column 3, middle iron core 6 and lower iron can be realized
The fixed installation of the heart 5, at the same no longer needed between middle iron core 6 and lower iron core 5 other assist connecting portion, by bulge loop 10 with it is recessed
The clamping of slot 9 can make the connection of middle iron core 6 and upper iron core 7 even closer；
C. prefabricated permanent magnetism mould 35 is inserted from above into the intubation 34 that 26 bottom of position-arresting disk is arranged in respectively again, from
The top pressing permanent magnetism mould 35 of permanent magnetism mould 35 makes the intubation 34 being arranged in intubation mounting groove 33 fully enter permanent magnetism
In the slot 36 of 37 bottom of body, if the second permanent magnet wears groove 11 stops the connection of permanent magnetism mould 35 and intubation 34, adjust again
The position of whole middle iron core 6 is until be intubated 34 completely into slot 36；The length of preset intubation 34 and 35 bottom of permanent magnetism mould
The size of slot 36 of portion's setting matches, if intubation 34 completely into slot 36, can illustrate permanent magnetism mould 35 by
It is installed according to scheduled angle, if intubation 34 cannot occur completely into the installation of permanent magnetism mould 35 in slot 36, is illustrated
The reasons such as inclination need to remove permanent magnetism mould 35 and re-start installation, and permanent magnetism mould 35 can be for the peace of iron core 6 in examining
Holding position, it is ensured that the installation of middle iron core 6 is overlapped with lower iron core 5；
D. permanent magnetism mould 35 is finally removed；
3) installation of permanent magnet 37:
Successively permanent magnet 37 is put into the second permanent magnet wears groove 11, it is ensured that permanent magnet 37 is placed straight up and permanent magnet
37 38 lower surface of protrusion is contacted with the bottom of mounting groove 12 under permanent magnet；
4) installation and fixation of upper iron core 7:
A. the third connecting rod 31 at 7 middle part of upper iron core is perforated first and is placed on the outside of connecting column 3, make third internal screw thread
21 external screw thread 25 along 3 outside of connecting column moves down, it is ensured that the upper end protrusion 38 of permanent magnet 37, which is located on permanent magnet, to be installed
In slot 14, then upper iron core 7 can not extremely be rotated along the rotation of connecting column 3, i.e. the second rotor of third trochanter wire casing 22 and lower section
Wire casing 19 needs to be overlapped；The protrusion 38 of permanent magnet 37 is connected on permanent magnet under mounting groove 14 and permanent magnet between mounting groove 12, from
And permanent magnet 37 is fixed between upper iron core 7 and middle iron core 6, the top of permanent magnet 37 passes through the second permanent magnet wears groove 11 and the
Three permanent magnet wears groove 13 and the exposed outside in upper iron core 7；
B. fixture nut 4 is moved down along the rotation of connecting column 3, guarantees the first internal screw thread 24 and the outer spiral shell on connecting column 3
Line 25 connects, and clasps fixture nut 4 using rotation tool and is rotated down along 25 direction of external screw thread, until fixture nut 4 can not turn
It is dynamic, and check the upper surface of fixture nut 4, it is ensured that the upper surface of fixture nut 4 is not higher than the upper surface of connecting column 3；Fixed spiral shell
Mother 4 is fixed from top and connecting column 3, prevents from sending out using between upper iron core 7, middle iron core 6 and lower iron core 5 and connecting column 3 for a long time
It is raw to loosen the accuracy for influencing rotor core 1；
C. finally the connecting sewing between upper iron core 7, middle iron core 6 and lower 5 three of iron core is sealed with glue, it is ensured that turn
The fastness of sub- iron core 1, and fixed ring 29 is removed；Glue sealing is carried out to the connecting sewing of three, can guarantee rotor core 1
The smoothness on surface.
The present invention is by adopting the above-described technical solution, have the advantages that
The rotor core 1 that the present apparatus refers to, is divided into three-layer set, by the way that connecting column 3, lower iron core are arranged on lower iron core 5
5, middle iron core 6 is fixedly connected with connecting column 3 respectively with upper iron core 7, is realized between lower iron core 5, middle iron core 6 and upper iron core 7
It being detachably connected, upper iron core 7, middle iron core 6 are identical with the outer diameter of lower iron core 5, so that outer diameter is overlapped after three's connection, it ensure that
The outer surface of rotor core 1 is smooth, by the design of bulge loop 10 and groove 9, makes the connection of middle iron core 6 and lower iron core 5
Even closer, middle part can be had the permanent magnetism of protrusion 38 by mounting groove 14 from upper and lower two sides on mounting groove 12 and permanent magnet under permanent magnet
Body 37 blocks, and the top of the permanent magnet 37 passes through the exposed surface in upper iron core 7 of third permanent magnet wears groove 13, by using from top
Fixture nut 4 is fixed, keeps upper iron core 7 and the connection of connecting column 3 stronger, to make the company of permanent magnet 37 Yu rotor core 1
It connects securely.
The present invention provides a kind of rotor core for permanent magnet synchronous motor and its technical solutions of installation method, pass through
Traditional rotor core 1 is divided for three-layer set, then permanent magnet 37 is folded between upper iron core 7 and middle iron core 6, so that this
The installation of rotor core 1 and permanent magnet 37 had not only needed additional protective layer, but can make to install it is very convenient, using side of the invention
Method installs rotor core 1, so that rotor surface is smooth complete, permanent magnet without the connecting portion exposed surface in rotor core 1
37 is very secured with the installation of rotor core 1, without adding safeguard measure, has stronger structural stability can, this rotor iron
The heart 1 can reduce the wind frictional resistance that motor is subject to since surface is smooth, motor made to make an uproar during following motor high speed rotation
Sound mitigates.
The above is only specific embodiments of the present invention, but technical characteristic of the invention is not limited thereto.It is any with this hair
Based on bright, to realize essentially identical technical effect, made ground simple change, equivalent replacement or modification etc. are all covered
Among protection scope of the present invention.
Claims (8)
1. a kind of rotor core for permanent magnet synchronous motor, including rotor core, it is characterised in that: it further include connection structure,
The connection structure includes connecting column and fixture nut, and the rotor core includes lower iron core, middle iron core and upper iron core, under described
The outer diameter of the outer diameter of iron core, the outer diameter of the middle iron core and the lower iron core is equal, and is provided with first forever on the lower iron core
Magnet wears groove is fixedly welded with the connecting column in the middle part of the lower iron core, and the middle iron core is mounted on the upper of the lower iron core
Side, the middle iron core are set on the connecting column, and the bottom setting of the middle iron core is fluted, are provided on the lower iron core
Bulge loop, the bulge loop are mounted in the groove, and the upper iron core is provided with above the middle iron core, and the upper iron core is arranged
On the connecting column, it is provided with mounting groove under the second permanent magnet wears groove and permanent magnet on the middle iron core, under the permanent magnet
The upper surface of the middle iron core is arranged in mounting groove, and mounting groove is looped around the outer of the second permanent magnet wears groove under the permanent magnet
Side, the depth of mounting groove is the half of the middle iron core thickness under the permanent magnet, is provided with third permanent magnetism on the upper iron core
Mounting groove in body wears groove and permanent magnet, the lower surface of the upper iron core, the permanent magnet is arranged in mounting groove on the permanent magnet
The depth of upper mounting groove is the half of the upper iron core thickness, and the fixture nut is fixedly connected on the top of the connecting column.
2. a kind of rotor core for permanent magnet synchronous motor according to claim 1, it is characterised in that: the lower iron core
Middle part is provided with first rotating shaft perforation, is provided with the first rotor wire casing on the outside of the lower iron core, the first rotor wire casing is set
It sets in the outside of the first permanent magnet wears groove.
3. a kind of rotor core for permanent magnet synchronous motor according to claim 2, it is characterised in that: the middle iron core
Middle part is provided with the perforation of the second shaft, is provided with the second internal screw thread on the inner sidewall of the second shaft perforation, the middle iron core it is outer
Side is provided with the second rotor slot, and second rotor slot is arranged in the outside of the second permanent magnet wears groove, and described second
The size of rotor slot and the size of the first rotor wire casing match.
4. a kind of rotor core for permanent magnet synchronous motor according to claim 3, it is characterised in that: the upper iron core
Middle part is provided with the perforation of third shaft, is provided with third internal screw thread, the upper iron core on the inner sidewall of the third shaft perforation
Outside be provided with third trochanter wire casing, the outside of the third permanent magnet wears groove is arranged in the third trochanter wire casing, described
The size of third trochanter wire casing and the size of second rotor slot match.
5. a kind of rotor core for permanent magnet synchronous motor according to claim 1, it is characterised in that: the connecting column
It is internally provided with the perforation of the 4th shaft.
6. a kind of rotor core for permanent magnet synchronous motor according to claim 4, it is characterised in that: the fixture nut
Inner sidewall on be provided with the first internal screw thread, the upper surface flush of the upper surface of the fixture nut and the connecting column.
7. a kind of rotor core for permanent magnet synchronous motor according to claim 6, it is characterised in that: the connecting column
Height is equal to the sum of height and height of the fixture nut of the rotor core, is provided on the lateral wall of the connecting column
External screw thread, the externally threaded size are matched with first internal screw thread, second internal screw thread and the third internal screw thread.
8. a kind of installation method of rotor core for permanent magnet synchronous motor according to claim 1, it is characterised in that:
Include the following steps:
1) fixation of iron core under:
A. position-arresting disk is placed on station first, head diameter is then selected to be greater than positioning bore dia and less than the 4th shaft
Position-arresting disk is fixed on station by the bolt of perforation, and screwing bolts, and the bottom edge of bolt head is made to be tightly attached to the upper of position-arresting disk
Surface；
B. then lower iron core is placed on position-arresting disk, adjusts the position of lower iron core, bolt head is made to be fully located at first rotating shaft
The inside of perforation, then from the top of lower iron core, pressing makes the lower surface of lower iron core be tightly attached to the upper surface of position-arresting disk, and adjusts
Make the first permanent magnet wears groove on lower iron core and the intubation mounting groove aligned in position on position-arresting disk, is then looped around down fixed ring
The outside of iron core, and tightening fixed ring is tightly attached to the outer wall of lower iron core in fixed ring, then connecting rod is passed through fixed ring end
Mounting hole, and pass through with latch fitting the connecting hole at connecting rod both ends, realize to the position-limiting action of fixed ring, finally by fixed ring
The connecting portion of bottom and position-arresting disk is welded and fixed；
2) installation of iron core and middle iron core under:
A. connecting column is placed on lower iron core first, the of the side wall for then making the 4th shaft of connecting column perforate and lower iron core
The side wall alignment of one shaft perforation, and the bottom of connecting column is welded on lower iron core；
B. then middle iron core is placed on connecting column, makes the second internal screw thread and company on the second shaft perforated side wall of middle iron core
The external screw thread connection on column is connect, makes that middle iron core rotates down to the lower surface of middle iron core along connecting column and the upper surface of lower iron core connects
Touching, and permanent magnetism mould and the second permanent magnet wears groove inspection and ensure that the bulge loop on lower iron core is located at the recessed of middle iron core lower surface
In slot, that is, observe by the naked eye invisible bulge loop；
C. prefabricated permanent magnetism mould is inserted from above into respectively again in the intubation that limit pan bottom is set, from permanent magnetism mould
The top pressing permanent magnetism mould intubation that makes to be arranged in intubation mounting groove fully enter in the slot of permanent magnet bottom, if the
Two permanent magnet wears grooves stop permanent magnetism mould and intubation connection, then readjust in iron core position until intubation completely into
In slot；
D. permanent magnetism mould is finally removed；
3) installation of permanent magnet:
Successively permanent magnet is put into the second permanent magnet wears groove, it is ensured that permanent magnet is placed straight up and the raised following table of permanent magnet
Face is contacted with the bottom of mounting groove under permanent magnet；
4) installation and fixation of upper iron core:
A., third shaft perforation in the middle part of upper iron core is placed on to the outside of connecting column first, makes third internal screw thread outside connecting column
The external screw thread of side moves down, it is ensured that the upper end protrusion of permanent magnet is located on permanent magnet in mounting groove, then by upper iron core edge
Connecting column is rotated to that can not rotate, i.e., third trochanter wire casing needs to be overlapped with the second rotor slot of lower section；
B. fixture nut is moved down along connecting column rotation, guarantees that the first internal screw thread is connect with the external screw thread on connecting column, benefit
Fixture nut is clasped with rotation tool to be rotated down along external screw thread direction, until fixture nut can not rotate, and checks fixed spiral shell
Female upper surface, it is ensured that the upper surface of fixture nut is not higher than the upper surface of connecting column；
C. finally the connecting sewing between upper iron core, middle iron core and lower iron core three is sealed with glue, it is ensured that rotor core
Fastness, and fixed ring is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910163387.5A CN109888949B (en) | 2019-03-05 | 2019-03-05 | Rotor core for permanent magnet synchronous motor and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910163387.5A CN109888949B (en) | 2019-03-05 | 2019-03-05 | Rotor core for permanent magnet synchronous motor and mounting method thereof |
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| Publication Number | Publication Date |
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| CN109888949A true CN109888949A (en) | 2019-06-14 |
| CN109888949B CN109888949B (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2001157395A (en) * | 1999-11-25 | 2001-06-08 | Mitsubishi Electric Corp | Magnet buried rotor, its manufacture method and forming jig |
| CN1373549A (en) * | 2001-02-28 | 2002-10-09 | 株式会社日立制作所 | Rotary motor and vehicle carring same |
| EP1786085A2 (en) * | 2005-11-15 | 2007-05-16 | Shin-Etsu Chemical Co., Ltd. | Permanent magnet rotating electric machine |
| CN202634109U (en) * | 2012-01-22 | 2012-12-26 | 浙江大学 | Sectional type PMSM rotor structure |
| CN206349826U (en) * | 2016-12-08 | 2017-07-21 | 泰信电机（天津）有限公司 | A kind of permagnetic synchronous motor |
| CN107026523A (en) * | 2016-02-01 | 2017-08-08 | 德昌电机(深圳)有限公司 | Monophase machine and its rotor |
| US20180069443A1 (en) * | 2015-03-19 | 2018-03-08 | Koh-A Jung Gong Co., Ltd. | Motor rotor including rotor core and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0425462U (en) * | 1990-06-19 | 1992-02-28 | ||
| JPH08107639A (en) * | 1994-08-10 | 1996-04-23 | Yaskawa Electric Corp | Rotor of permanent magnet type synchronous electric rotating machine |
| JP2001157395A (en) * | 1999-11-25 | 2001-06-08 | Mitsubishi Electric Corp | Magnet buried rotor, its manufacture method and forming jig |
| CN1373549A (en) * | 2001-02-28 | 2002-10-09 | 株式会社日立制作所 | Rotary motor and vehicle carring same |
| EP1786085A2 (en) * | 2005-11-15 | 2007-05-16 | Shin-Etsu Chemical Co., Ltd. | Permanent magnet rotating electric machine |
| CN202634109U (en) * | 2012-01-22 | 2012-12-26 | 浙江大学 | Sectional type PMSM rotor structure |
| US20180069443A1 (en) * | 2015-03-19 | 2018-03-08 | Koh-A Jung Gong Co., Ltd. | Motor rotor including rotor core and manufacturing method therefor |
| CN107026523A (en) * | 2016-02-01 | 2017-08-08 | 德昌电机(深圳)有限公司 | Monophase machine and its rotor |
| CN206349826U (en) * | 2016-12-08 | 2017-07-21 | 泰信电机（天津）有限公司 | A kind of permagnetic synchronous motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109888949B (en) | 2020-03-24 |
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Denomination of invention: The invention relates to a rotor core for a permanent magnet synchronous motor and an installation method thereof Effective date of registration: 20211027 Granted publication date: 20200324 Pledgee: Shaoxing Bank Co.,Ltd. Shengzhou sub branch Pledgor: ZHEJIANG JIN YI SPECIAL MOTOR CO.,LTD. Registration number: Y2021330002062 |
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Date of cancellation: 20220421 Granted publication date: 20200324 Pledgee: Shaoxing Bank Co.,Ltd. Shengzhou sub branch Pledgor: ZHEJIANG JIN YI SPECIAL MOTOR CO.,LTD. Registration number: Y2021330002062 |
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Denomination of invention: Rotor core for permanent magnet synchronous motor and its installation method Effective date of registration: 20220927 Granted publication date: 20200324 Pledgee: Bank of China Limited Shengzhou sub branch Pledgor: ZHEJIANG JIN YI SPECIAL MOTOR CO.,LTD. Registration number: Y2022330002389 |