CN109149844A - Disc type electric machine and its fixed structure of rotor - Google Patents
Disc type electric machine and its fixed structure of rotor Download PDFInfo
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- CN109149844A CN109149844A CN201811219865.1A CN201811219865A CN109149844A CN 109149844 A CN109149844 A CN 109149844A CN 201811219865 A CN201811219865 A CN 201811219865A CN 109149844 A CN109149844 A CN 109149844A
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- 230000006698 induction Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The present invention provides a kind of disk type electric motor rotor fixed structures, disc type electric machine supports shaft by front housing and back cabinet frame, rear bearing is rack-mounted to support shaft on back cabinet, positioning region and outer positioning region carry out axial limiting to rear bearing inner ring in being arranged in shaft, avoid drawing the axial sliding of generation by magnetic between shaft and bearing.Rear axle bearing outer-ring pressing plate is set in the inside of back cabinet, the outer ring of rear bearing is pressed in rear bearing mounting hole by rear axle bearing outer-ring pressing plate.Pass through the axially position of rear bearing and shaft and back cabinet, shaft caused by avoiding magnetic from drawing is along axial sliding, and then guarantee that the axial displacement for the rotor being fixedly mounted in shaft causes motor gas-gap to change, the contact of rotor with line stator is avoided, guarantees the reliability of disc type electric machine axial gap.The present invention also provides a kind of disc type electric machines.
Description
Technical field
The present invention relates to technical field of motors, more specifically to a kind of disc type electric machine and its fixed structure of rotor.
Background technique
Motor gas-gap is the gap between electric machine rotor.The motor gas-gap of axial magnetic flux disc type electric machine and conventional motors
Gap position is different.As depicted in figs. 1 and 2, Fig. 1 is the motor gas-gap position view of disc type electric machine, and Fig. 2 is in the prior art
The motor gas-gap position view of ordinary motor.
As seen from Figure 1, the rotor 1` of disc type electric machine is located at shell axial direction, and rotor 1` is rotated with shaft, and stator 2` is solid
It is scheduled on shell 3`, the air gap 4` of disc type electric machine is in the axial direction；And ordinary motor in Fig. 2, rotor rack support is in shell axial direction, so
And its stator arrangement in shell radial direction, the air gap of ordinary motor is in shell radial direction.If the rotor of disc type electric machine is in axial direction
Displacement is generated, will be scratched with stator contact, motor failure is caused, and when ordinary motor generation axial displacement, it will not generate
State problem.So in order to guarantee reliability that disc type electric machine runs well for a long time.Guarantee that its axial gap is particularly significant.
Disc type electric machine is to guarantee its axial gap, and traditional solution is to be interference fitted bearing bore diameter and armature spindle,
It is connect by bearing plate with shell on the outside of bearing, inside carries out axial limiting with axis with when circle.Shaft block ring is in the design phase
It there is axial gap, can not effectively limit rotor axial freedom degree.And intensity itself is unable to satisfy the strong axial magnetic of disc type electric machine
The application requirement of pulling force.
Therefore, the reliability for how guaranteeing disc type electric machine axial gap is that current those skilled in the art are urgently to be resolved
Problem.
Summary of the invention
In view of this, the present invention provides a kind of disk type electric motor rotor fixed structure, to guarantee disc type electric machine axial gap
Reliability；The present invention also provides a kind of disc type electric machines.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of disk type electric motor rotor fixed structure is supportted including front housing and back cabinet and frame in shaft between the two,
The rear bearing that frame supports the shaft is set on the back cabinet, is fixed with respectively in the shaft to the two of the rear bearing inner ring
End carries out positioning interior positioning region and outer positioning region；
The rear axle bearing outer-ring pressing plate that axially position is carried out to the outer ring of the rear bearing is fixed on the inside of the back cabinet.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the interior positioning region is be opened in the shaft outer
End face, and the interior step limiting section to offset with the rear bearing inside.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the outer positioning region includes being suited on the shaft
And the rear bearing inner ring pressing plate to offset with the rear bearing inner ring, it is also fixed with to the rear bearing inner ring pressing plate in the shaft
The the first pressing plate positioning bolt positioned.
Preferably, it in above-mentioned disk type electric motor rotor fixed structure, is offered in the shaft in the suit rear bearing
The outer step limiting section of pressing plate is enclosed, the first pressing plate positioning bolt is limited along the axial locking of the shaft in the outer step
In portion.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the rear bearing inner ring pressing plate and the outer step are limited
The first press fitting gap that the rear bearing inner ring pressing plate compresses the rear bearing inner ring is reserved between the portion of position.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the rear axle bearing outer-ring pressing plate is and the rear bearing
Coaxially arranged annular outer ring pressing plate, be reserved between the rear axle bearing outer-ring pressing plate and the inner sidewall of the back cabinet it is described after
The second press fitting gap that bearing outer ring pressing plate compresses the outer ring of the rear bearing, the lateral wall of the back cabinet are provided with
Lock the second pressing plate positioning bolt of the back cabinet and the rear axle bearing outer-ring pressing plate.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the rear bearing is double-row angular contact bal bearing.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, it is provided with frame on the front housing and supports the shaft
Fore bearing is provided with the shaft shoulder to offset to the inner ring of the fore bearing in the shaft, is provided in the front housing around institute
It states shaft circumferentially, and pushes the elastic pusher that the fore bearing and the shaft shoulder offset.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the elastic pusher be suited on the shaft, and
The wave washer to offset respectively with the fore bearing and front housing inside.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, setting frame supports the fore bearing in the front housing
Front axle bearing bore, the fore bearing transition fit are installed in the front axle bearing bore.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the axial direction of the front housing and the back cabinet is uniformly
The clamping screw that multiple pairs of the two are locked is distributed with；The inner ring of the front housing is fixed with front stator, after described
The inner ring of casing is fixed with rear line stator, is fixed in the middle part of the shaft and the front stator and the rear line stator magnetic strength
The rotor answered.
Preferably, in above-mentioned disk type electric motor rotor fixed structure, the rotor and the shaft are integrally formed.
A kind of disc type electric machine, including the front housing and back cabinet that axially connect and frame support in shaft between the two, institute
State be fixed in front housing and the back cabinet magnetic induction cooperation line Stator and electrical machine rotor, the front housing, back cabinet with
Disk type electric motor rotor location structure described in any one as above to rotor positioning is provided between the shaft.
Disk type electric motor rotor fixed structure provided by the invention, including front housing and back cabinet and frame support are between the two
Shaft, setting frame supports the rear bearing of shaft on back cabinet, is fixed in shaft and determines respectively the both ends of rear bearing inner ring
Positioning region and outer positioning region in position；The rear axle bearing outer-ring that axially position is carried out to the outer ring of rear bearing is fixed on the inside of back cabinet
Pressing plate.Disc type electric machine supports shaft by front housing and back cabinet frame, and rear bearing is rack-mounted to support shaft on back cabinet, sets in shaft
It sets interior positioning region and outer positioning region and axial limiting is carried out to rear bearing inner ring, avoid drawing generation axis by magnetic between shaft and bearing
To sliding.It is correspondingly arranged the rear bearing mounting hole of frame support rear bearing on back cabinet, rear axle bearing outer-ring is set in the inside of back cabinet
The outer ring of rear bearing is pressed in rear bearing mounting hole by pressing plate by rear axle bearing outer-ring pressing plate.In being set in shaft
Bearing and shaft locking are integrated by positioning region and outer positioning region, and rear bearing is navigated to back cabinet by rear axle bearing outer-ring pressing plate
On, to realize the axially position to shaft and back cabinet, shaft caused by avoiding magnetic from drawing guarantees to turn along axial sliding
The axial displacement for the rotor being fixedly mounted on axis causes motor gas-gap to change, and avoids the contact of rotor with line stator, guarantees
The reliability of disc type electric machine axial gap.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the motor gas-gap position view of disc type electric machine；
Fig. 2 is the motor gas-gap position view of ordinary motor in the prior art；
Fig. 3 is the bearing support structure schematic diagram of electronics rotor in disk type electric motor rotor fixed structure provided by the invention；
Fig. 4 is the assembling structure cross-sectional view of disk type electric motor rotor fixed structure provided by the invention；
Fig. 5 is the partial enlarged view of rear bearing inner ring pressing plate mounting structure in Fig. 4；
Fig. 6 is the partial enlarged view of rear axle bearing outer-ring pressing plate mounting structure in Fig. 4.
Specific embodiment
The invention discloses a kind of disk type electric motor rotor fixed structures, ensure that the reliability of disc type electric machine axial gap；
The present invention also provides a kind of disc type electric machines.
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
Whole description, 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
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As shown in figures 3 to 6, Fig. 3 is the bearing branch of electronics rotor in disk type electric motor rotor fixed structure provided by the invention
Support structure schematic diagram；Fig. 4 is the assembling structure cross-sectional view of disk type electric motor rotor fixed structure provided by the invention；Fig. 5 is in Fig. 4
The partial enlarged view of rear bearing inner ring pressing plate mounting structure；Fig. 6 is the partial enlargement of rear axle bearing outer-ring pressing plate mounting structure in Fig. 4
Figure.
The present invention provides a kind of disk type electric motor rotor fixed structures, including front housing 9 and back cabinet 8 and frame support are in two
Shaft 51 between person, setting frame supports the rear bearing 1 of shaft 51 on back cabinet 8, is fixed with respectively in shaft 51 in rear bearing 1
The both ends of circle carry out positioning interior positioning region and outer positioning region 2；The inside of back cabinet 8, which is fixed with, carries out axis to the outer ring of rear bearing 1
To the rear axle bearing outer-ring pressing plate 4 of positioning.Disc type electric machine supports shaft 51 by front housing 9 and 8 frame of back cabinet, rear bearing 1 it is rack-mounted
Shaft 51 is supported on back cabinet 8, interior positioning region and outer positioning region 2 is set in shaft 51, axial limiting is carried out to 1 inner ring of rear bearing,
It avoids being drawn between shaft 51 and rear bearing 1 by magnetic and generates axial sliding.After being correspondingly arranged frame support rear bearing 1 on back cabinet 8
Rear axle bearing outer-ring pressing plate 4 is arranged in the inside of back cabinet 8 in bearing mounting hole, will be outside rear bearing 1 by rear axle bearing outer-ring pressing plate 4
Circle is pressed in rear bearing mounting hole.By the interior positioning region that is set in shaft 51 and outer positioning region 2 by rear bearing 1 and shaft
51 lockings are integrated, and are navigated to rear bearing 1 on back cabinet 8 by rear axle bearing outer-ring pressing plate 4, to realize to shaft 51 with after
The axially position of casing 8, shaft 51 caused by avoiding magnetic from drawing guarantee that the motor being fixedly mounted in shaft 51 turns along axial sliding
The axial displacement of son 5 causes motor gas-gap 13 to change, and avoids the contact of rotor 5 with line stator 10, guarantees disc type electric machine axis
To the reliability in gap 13.
In one specific embodiment of this case, interior positioning region is the outer end face for being opened in shaft 51, and with 1 inside phase of rear bearing
The interior step limiting section supported.
In the present embodiment, outer positioning region includes being set in shaft 51 and in the rear bearing that offsets with 1 inner ring of rear bearing
Pressing plate 2 is enclosed, is also fixed with the first pressing plate positioning bolt 3 positioned to rear bearing inner ring pressing plate 51 in shaft 51.Rear bearing 1
It is set in shaft 51, interior positioning region may be configured as being opened in the interior step limiting section in shaft 51, by will set in shaft 51
The Step Shaft to offset with the loading end of rear bearing 1 is set to be offseted by the interior step limiting section of step axle construction with 1 inner ring of rear bearing,
Its axially inner side is limited.Certainly, interior positioning region may be set to be the baffle being installed in shaft, or is set in and turns
The sleeve of axis, for the inner ring limit to rear bearing.
Shaft 51 is set with rear bearing inner ring pressing plate 2, is specially packed into and turns in rear bearing 1 on the outside of being packed into close to rear bearing 1
After axis 51, continue the rear bearing inner ring pressing plate 2 for being set with annular in shaft 51, offsets, pass through with the inner ring outside of rear bearing 1
The rear bearing inner ring pressing plate 2 on the outside of 1 inner ring of interior step limiting section and rear bearing on the inside of 1 inner ring of rear bearing realizes rear bearing
1 limit in shaft 51.In shaft 51 simultaneously affixed first pressing plate positioning bolt 3, rear bearing inner ring pressing plate 2 is to rear bearing 1
After abutting, rear bearing inner ring pressing plate 2 is limited by the first pressing plate positioning bolt 3, to realize to rear bearing inner ring pressure
The stability of 2 location structure of plate.
In one specific embodiment of this case, the outer step limiting section of suit rear bearing inner ring pressing plate 2 is offered in shaft 51,
First pressing plate positioning bolt 3 along shaft axial locking on outer step limiting section.First pressing plate positioning bolt 3 lock onto shaft
It when on 51, can be installed, can also be installed along the axial direction of shaft 51 along the radial direction of shaft 51.
Enough coupling mechanism forces are provided to rear bearing inner ring pressing plate 2 for the ease of the first pressing plate positioning bolt 3, at shaft 51
One outer step limiting section is set on the outside of the inner ring after rear bearing is installed in place, is located at rear bearing so that being formed in shaft 51
1 axial sides are step axle construction.The threaded hole axially arranged along shaft, the positioning of the first pressing plate are opened up on outer step limiting section
After bolt passes through the through hole on rear bearing inner ring pressing plate, it is locked on outer step limiting section.Certainly, turning the tip of the axis can also be with
It is set as screw thread axle construction, is installed in shaft by screw shell or with the locking nut of shaft cooperation, to rear bearing inner ring
It is compressed.
Rear bearing inner ring pressing plate 2 can also use ring pressing construction, shaft and pressing ring using being interference fitted, by pressing ring to rear axle
The inner ring held is compressed.
In one specific embodiment of this case, it is reserved in rear bearing between rear bearing inner ring pressing plate 2 and outer step limiting section
The first press fitting gap 21 that circle pressing plate 2 compresses 1 inner ring of rear bearing.After rear bearing inner ring pressing plate 2 is set in shaft 51,
It is pressed end face and the inner ring of rear bearing 1 offsets, and supports the width of 1 inner ring of rear bearing to be less than the width of rear bearing shaft 51,
So that the first press fitting gap 21 is formed between outer step limiting section and rear bearing inner ring pressing plate 2, when the first pressing plate positions spiral shell
After bolt 3 and the locking of outer step limiting section, so that it is generated certain press fitting deformation by squeezing rear bearing inner ring pressing plate 2, rear axle is provided
The compressive stres that inner ring pressing plate 2 compresses rear bearing 1 are held, avoid generating axial displacement between shaft 51 and rear bearing 1, further
Guarantee the stability of rear bearing position location in shaft.
In one specific embodiment of this case, rear axle bearing outer-ring pressing plate 4 is the annular outer ring pressure coaxially arranged with rear bearing 1
Plate, be reserved between rear axle bearing outer-ring pressing plate 4 and the inner sidewall of back cabinet 8 rear axle bearing outer-ring pressing plate 4 to the outer ring of rear bearing 1 into
The second press fitting gap 41 that row compresses, the lateral wall of back cabinet 8 are provided with the of locking back cabinet 8 and rear axle bearing outer-ring pressing plate 4
Two pressing plate positioning bolts 14.
Between rear bearing 1 and shaft 51 after the positioning of Support Position, while needing to guarantee the position on back cabinet 8 of rear bearing 1
Stability.The rear bearing mounting hole for being fixedly mounted with rear bearing 1 is opened up on back cabinet 8, and frame is set specially on back cabinet 8 and supports rear axle
1 rear bearing block is held, rear axle bearing outer-ring pressing plate 4 is annular outer ring pressing plate, with 51 synchronization arrangement of shaft, is packed into rear bearing 1
After in back cabinet 8, rear axle bearing outer-ring pressing plate 4 is installed on rear bearing block, and the inner ring of rear axle bearing outer-ring pressing plate 4 is pressed in rear bearing
1 outer ring.
Similarly, in order to provide rear axle bearing outer-ring pressing plate 4 compressive stres certain to rear bearing 1, by rear bearing mounting hole
Depth be less than the width of 1 outer ring of rear bearing so that after rear axle bearing outer-ring pressing plate 4 and rear bearing 1 push against, rear axle bearing outer-ring
The second press fitting gap 41 is formed between abutting side and the inner sidewall of back cabinet 8 of pressing plate 4, is opened up on back cabinet 8 through its thickness
The threaded hole for spending direction passes through back cabinet 1 by the second pressing plate positioning bolt 14 and locks to rear axle bearing outer-ring pressing plate 4.It is (attached
Figure is the mounting structure for clearly indicating rear axle bearing outer-ring pressing plate 4, and the assembling structure of the second pressing plate positioning bolt 14 is not shown, only leads to
Cross its position instruction mark installation site).
1 outer ring of rear bearing is pressed on back cabinet 8 by rear axle bearing outer-ring pressing plate 4, it will by rear bearing inner ring pressing plate 4
Rear bearing 1 is pressed in shaft 51, is realized the rigid connection of back cabinet 8,51 three of rear bearing 1 and shaft, is further avoided producing
The problem of raw magnetic traction due between rotor 5 and line stator 10 collides with to motor gas-gap 13 and rotor 5.
Preferably, rear bearing 1 is double-row angular contact bal bearing.The inner ring and outer ring of rear bearing 1 be all made of locking mechanism into
Rear bearing 1 is selected double row angular contact ball in order to avoid magnetic traction causes 1 inner ring and outer ring axile displacement of rear bearing by row limit
Bearing, double-row angular contact bal bearing can bear radial load and to act on the axial load of both direction, it can limit axis or
Shell bi-directional axial displacement, to avoid being used as due to the axial of rear bearing inner ring and outer ring to motor work structuring stability shadow
It rings.
In one specific embodiment of this case, it is provided with the fore bearing 6 of frame support shaft 51 on front housing 9, is arranged in shaft 51
There is the shaft shoulder that the inner ring to fore bearing 6 offsets, is provided with twisted rotary shaft 51 circumferentially in front housing 9, and push fore bearing 6
The elastic pusher 7 to offset with the shaft shoulder.The axial one end of shaft 51 is supported by the rear bearing 1 being arranged on back cabinet 8, axial direction
The other end is supported by fore bearing 6, and fore bearing 6 is rack-mounted on front housing 9, by the way that the fulcrum of shaft 51 to be respectively arranged at
Front housing 9 and back cabinet 8 guarantee support construction stability so that having certain branch tie distance between two fulcrums of shaft.
Meanwhile fore bearing 6 is set in shaft 51, and the shaft shoulder is opened up in shaft 51 and clamps limit to fore bearing 6.Front housing 9
On open up the fore bearing mounting hole of accommodating fore bearing 6, in the inside of fore bearing mounting hole, setting and the loading end of fore bearing 6 offset
Elastic pusher 7, provide the push power compressed to back cabinet direction of shaft from elastic pusher 7, further increase shaft in preceding machine
The stability of shell and back cabinet inner supporting structure.
Preferably, elastic pusher 7 is the Corrugation pad for being set on the shaft, and offseting respectively with fore bearing and front housing inside
Circle.Certainly, elastic pusher 7, which may be set to be, provides the spring plectrum of axial elasticity motive force to fore bearing 6.
In one specific embodiment of this case, the axial direction of front housing 9 and back cabinet 8 is evenly distributed with multiple pairs of the two and locks
The clamping screw 11 fastened；The inner ring of front housing 9 is fixed with front stator, and the inner ring of back cabinet 8 is fixed with rear line stator, turns
The middle part of axis 51 is fixed with the rotor 5 with front stator and rear line stator magnetic induction.Setting in front housing 9 and back cabinet 8
Single rotor double-stator structure, rotor are installed in the center of rotation in shaft and being located at front housing and back cabinet.Front housing and
Back cabinet is locked in outer ring by bolt, guarantees electric machine structure stability.Certainly, it may be set to be in front housing and back cabinet
The electric machine structure of other rotors and stator cooperation.The output end of shaft 51 is additionally provided with oil sealing 12, guarantees the sealing of disc type electric machine
Performance.
In one specific embodiment of this case, rotor 5 and shaft 51 are integrally formed.By the disk of single rotor double-stator structure
Formula motor, rotor and shaft are integrally formed, to reduce the difficulty of processing to shaft, guarantee that motor work structuring is stablized
Property.
The disk type electric motor rotor location structure provided in based on the above embodiment, the present invention also provides a kind of disc type electricity
Machine is fixedly mounted with including the front housing and back cabinet that axially connect and frame support in shaft between the two, front housing and back cabinet
The line Stator and electrical machine rotor for having magnetic induction to cooperate, is provided between the front housing, back cabinet and the shaft to rotor
Positioning such as the disk type electric motor rotor location structure that is provided in above-described embodiment.
Due to the disc type electric machine use above-described embodiment disk type electric motor rotor location structure, so the disc type electric machine by
Disk type electric motor rotor location structure bring beneficial effect please refers to above-described embodiment.
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 readily 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 scope of cause.
Claims (13)
1. a kind of disk type electric motor rotor fixed structure, which is characterized in that including front housing and back cabinet and frame support in the two it
Between shaft, setting frame supports the rear bearing of the shaft on the back cabinet, is fixed with respectively in the shaft to the rear axle
The both ends for holding inner ring carry out positioning interior positioning region and outer positioning region；
The rear axle bearing outer-ring pressing plate that axially position is carried out to the outer ring of the rear bearing is fixed on the inside of the back cabinet.
2. disk type electric motor rotor fixed structure according to claim 1, which is characterized in that the interior positioning region is to be opened in
The outer end face of the shaft, and the interior step limiting section to offset with the rear bearing inside.
3. disk type electric motor rotor location structure according to claim 1, which is characterized in that the outer positioning region includes suit
In being also fixed on the rear bearing inner ring pressing plate to offset in the shaft and with the rear bearing inner ring, the shaft to after described
The first pressing plate positioning bolt that bearing inner race pressing plate is positioned.
4. disk type electric motor rotor location structure according to claim 3, which is characterized in that offer suit in the shaft
The outer step limiting section of the rear bearing inner ring pressing plate, the first pressing plate positioning bolt along the shaft axial locking in institute
It states on outer step limiting section.
5. disk type electric motor rotor location structure according to claim 4, which is characterized in that the rear bearing inner ring pressing plate with
The first pressure that the rear bearing inner ring pressing plate compresses the rear bearing inner ring is reserved between the outer step limiting section
Fill gap.
6. disk type electric motor rotor location structure according to claim 1, which is characterized in that the rear axle bearing outer-ring pressing plate is
The annular outer ring pressing plate coaxially arranged with the rear bearing, between the rear axle bearing outer-ring pressing plate and the inner sidewall of the back cabinet
It is reserved with the second press fitting gap that the rear axle bearing outer-ring pressing plate compresses the outer ring of the rear bearing, the back cabinet
Lateral wall is provided with the second pressing plate positioning bolt of the locking back cabinet and the rear axle bearing outer-ring pressing plate.
7. disk type electric motor rotor location structure according to claim 1, which is characterized in that the rear bearing is biserial corner connection
Touch ball bearing.
8. disk type electric motor rotor location structure according to claim 1, which is characterized in that be provided with frame on the front housing
The fore bearing of the shaft is supportted, is provided with the shaft shoulder to offset to the inner ring of the fore bearing in the shaft, in the front housing
It is provided with around the shaft circumferentially, and pushes the elastic pusher that the fore bearing and the shaft shoulder offset.
9. disk type electric motor rotor location structure according to claim 8, which is characterized in that the elastic pusher is is set in
The wave washer stated in shaft, and offseted respectively with the fore bearing and front housing inside.
10. disk type electric motor rotor location structure according to claim 8, which is characterized in that frame is arranged in the front housing
The front axle bearing bore of the fore bearing is supportted, the fore bearing transition fit is installed in the front axle bearing bore.
11. disk type electric motor rotor location structure according to claim 1, which is characterized in that the front housing and it is described after
The axial direction of casing is evenly distributed with the clamping screw that multiple pairs of the two are locked；Before the inner ring of the front housing is fixed with
Line stator, the inner ring of the back cabinet are fixed with rear line stator, are fixed in the middle part of the shaft and the front stator and institute
State the rotor of rear line stator magnetic induction.
12. disk type electric motor rotor location structure according to claim 11, which is characterized in that the rotor with it is described
Shaft is integrally formed.
13. a kind of disc type electric machine, including the front housing and back cabinet that axially connect and frame support in shaft between the two, institute
State the line Stator and electrical machine rotor that magnetic induction cooperation is fixed in front housing and the back cabinet, which is characterized in that the preceding machine
It is provided between shell, back cabinet and the shaft to rotor positioning as described in any one of claim 1-12
Disk type electric motor rotor location structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219865.1A CN109149844B (en) | 2018-10-19 | 2018-10-19 | Disk motor and rotor fixing structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219865.1A CN109149844B (en) | 2018-10-19 | 2018-10-19 | Disk motor and rotor fixing structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109149844A true CN109149844A (en) | 2019-01-04 |
| CN109149844B CN109149844B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811219865.1A Active CN109149844B (en) | 2018-10-19 | 2018-10-19 | Disk motor and rotor fixing structure thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266128A (en) * | 2019-07-12 | 2019-09-20 | 深圳市鑫宝达电机有限公司 | There are one kind double pretightning force axial elasticities to be displaced drag cup rotor |
| WO2022073560A1 (en) * | 2020-10-07 | 2022-04-14 | Schaeffler Technologies AG & Co. KG | Electrical machine having a bearing of a connection shaft connected to a rotor |
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