CN208738957U - Disc type electric machine - Google Patents
Disc type electric machine Download PDFInfo
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- CN208738957U CN208738957U CN201821705706.8U CN201821705706U CN208738957U CN 208738957 U CN208738957 U CN 208738957U CN 201821705706 U CN201821705706 U CN 201821705706U CN 208738957 U CN208738957 U CN 208738957U
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Abstract
The utility model provides a kind of disc type electric machine, and axial setting drives the shaft of preceding rotor and the rotation of rear rotor, is fixed with the fore bearing and rear bearing of frame support shaft on front housing and back cabinet respectively.Since fore bearing and rear bearing are located on front housing and back cabinet, compared to the structure that existing bearing is located at stator inner-ring bearing room, far from maximum pyrotoxin in disc type electric machine, the amount of heat that bearing rotation generates can directly be radiated by front housing and back cabinet, its heat influences each other smaller with stator heat production, and the fulcrum spacing of fore bearing and rear bearing increases, improve the stability and reliability of rotor-bearing system, it can effectively reduce rotor-support-foundation system resonance risk, be conducive to the installation accuracy that control improves bearing, improve the service life of bearing, and then improve the functional reliability of disc type electric machine inner bearing.
Description
Technical field
The utility model relates to technical field of motors, more specifically to a kind of disc type electric machine.
Background technique
Disc type electric machine is also motor in axial magnetic field, and the direction in the magnetic field inside motor is axially.Due to axial magnetic
Field motor generally all presents flat, therefore is also disc type electric machine.
Disc type electric machine is particularly suitable for due to higher iron core utilization, bigger power density and higher torque density
In the occasion for having strict demand to motor volume and weight.The structure of disc type electric machine mainly has single stator single rotor, bimorph transducer list
The structure of rotor, single stator and double-rotor and the more rotors of multiple stators.
In a kind of disc type electric machine of single stator and double-rotor in the prior art, stator armature iron core and winding pass through stator
Front end-plate and stator end plate are fixed on the casing of motor, and the bearing of rotor is mounted at the inner periphery of motor stator,
The inner periphery of stator plays the role of fixing bearing and support rotor-support-foundation system, the structure as bearing chamber, by the stator of motor
Middle (center) bearing is supported by stator, and motor is in the process of running, and stator is the largest pyrotoxin, and the high temperature of stator can be transmitted to bearing
Room and bearing reduce bearing reliability and service life, and increase the risk of bearing fault.
It is all located at due to the front and back bearings of motor in narrow stator shaft orientation space, leads to the front and back bearings distance of motor very
Closely, the bearing arrangement of this configuration easily causes the vibration of rotor-support-foundation system, and increases the risk of both sides rotor unbalance, due to
Stator is in the centre of two rotors, so the stator in the structure is relatively difficult to radiate compared with other structures form.In addition,
Since there are two rotors for structure tool, the stability series and reliability for how improving rotor-support-foundation system are also another challenge.
Therefore, the reliability for how improving disc type electric machine bearing, is a problem to be solved by those skilled in the art.
Utility model content
In view of this, the present invention provides a kind of disc type electric machines, to improve the reliability of disc type electric machine bearing.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of disc type electric machine, the front housing of preceding rotor-side is loaded on including covering, and lid is loaded on the back cabinet of rear rotor-side, and card
Set the middle casing of son；
Further include the shaft for driving the preceding rotor and the rear rotor rotation, divides on the front housing and the back cabinet
It is not fixed with fore bearing and rear bearing that frame supports the shaft.
Preferably, in above-mentioned disc type electric machine, the middle part setting of the stator accommodates the shaft through hole of the shaft, institute
State shaft and correspond to the shaft through hole and be provided with flange mounting base, the preceding rotor and it is described after be provided in the middle part of rotor
The ring flange being fixedly mounted with the flange mounting base.
Preferably, in above-mentioned disc type electric machine, the flange mounting base is annular flange mounting base, and the shaft interference is matched
In centre bore of the trap loaded on the annular flange mounting base.
Preferably, in above-mentioned disc type electric machine, the flange mounting base include along the shaft axial direction abut, and with institute
The affixed forward flange mounting base of rotor before stating, and the rear flange mounting base affixed with the rear rotor；The flange mounting base
Outer ring surface is the protection anchor ring cumulative to both ends outer diameter by its middle part.
Preferably, in above-mentioned disc type electric machine, the front axle bearing bore for accommodating the fore bearing, institute are offered on the front housing
State the rear axle bearing bore for offering on back cabinet and accommodating the rear bearing；
The front end of the shaft is provided with the preceding shaft shoulder limited to the inner ring of the fore bearing, the rear end of the shaft
It is provided with the rear shaft shoulder limited to the inner ring of the rear bearing.
Preferably, in above-mentioned disc type electric machine, the fore bearing is single-row roller bearing, and the rear bearing is biserial roller
Bearing.
Preferably, in above-mentioned disc type electric machine, the forward attached bag includes back iron, the magnet steel being attached on the back iron, and
The magnet steel retainer of axial restraint is carried out to the magnet steel；
It further include the rotor retainer that frame support is carried out to the back iron and the magnet steel retainer, the ring flange is set to
The inner ring of the rotor retainer；
The preceding rotor is identical with the rear rotor structure.
Preferably, in above-mentioned disc type electric machine, the inner ring of the rotor retainer be provided with to the magnet steel retainer into
The fixed retainer positioning screw of row, and the rotor fixed position screw affixed with the flange mounting base.
Preferably, it in above-mentioned disc type electric machine, is additionally provided on the rotor retainer to the magnet steel and the back iron
The cyclic annular carbon fiber ring that is limited of excircle.
Disc type electric machine provided by the utility model is loaded on the front housing of preceding rotor-side including covering, and lid is loaded on rear rotor-side
Back cabinet, and clamp the middle casing of stator；It further include the shaft for driving preceding rotor and rear rotor to rotate, front housing and back cabinet
The upper fore bearing and rear bearing for being fixed with frame support shaft respectively.Stator is secured to the inside of middle casing, and spindle housing support is in disc type electricity
The axial direction of machine, by frame support on front housing fore bearing and frame support and be supported in the rear bearing on back cabinet, preceding rotor and after
Rotor is installed in shaft, and is located at stator shaft orientation two sides, after being installed in middle casing two sides by front housing and back cabinet,
The assembling for realizing disc type electric machine, since fore bearing and rear bearing are located on front housing and back cabinet, compared to existing axis
The structure positioned at stator inner-ring bearing room is held, far from maximum pyrotoxin in disc type electric machine, the amount of heat of bearing rotation generation
It can directly be radiated by front housing and back cabinet, heat influences each other smaller, and the branch of fore bearing and rear bearing with stator heat production
Point spacing increases, and improves the stability and reliability of rotor-bearing system, can effectively reduce rotor-support-foundation system resonance risk.Pass through
Layout again to fore bearing and rear bearing in disc type electric machine inner support position, more existing bearing are installed on disk type electric machine stator
Inner ring structure is conducive to the installation accuracy that control improves bearing, improves the service life of bearing, and then improve disc type electric machine inner shaft
The functional reliability held.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the front sectional view of disc type electric machine provided by the utility model；
Fig. 2 is the explosive view of disc type electric machine provided by the utility model；
Fig. 3 is the explosive view of disc type electric machine provided by the utility model radially section view；
Fig. 4 is rotor structure schematic diagram in disc type electric machine provided by the utility model.
Specific embodiment
The utility model discloses a kind of disc type electric machines, improve the reliability of disc type electric machine bearing.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clear, complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in FIG. 1, FIG. 1 is the front sectional view of disc type electric machine provided by the utility model；Fig. 2 mentions for the utility model
The explosive view of the disc type electric machine of confession；Fig. 3 is the explosive view of disc type electric machine provided by the utility model radially section view；Fig. 4
For rotor structure schematic diagram in disc type electric machine provided by the utility model.
A kind of disc type electric machine is present embodiments provided, the front housing 1 of preceding 2 side of rotor is loaded on including covering, lid is loaded on rear rotor 6
The back cabinet 7 of side, and clamp the middle casing 5 of stator 4；It further include the shaft 10 for driving preceding rotor 2 and rear rotor 6 to rotate, it is preceding
The fore bearing 11 and rear bearing 8 of frame support shaft 10 are fixed on casing 1 and back cabinet 7 respectively.Stator 4 is secured to middle casing 5
Inside, the support of 10 frame of shaft in the axial direction of disc type electric machine, by frame support on front housing 1 fore bearing 11 and frame support on back cabinet 7
Rear bearing 8 be supported, preceding rotor 2 and rear rotor 6 are installed in shaft 10, and are located at 4 axial sides of stator, by
After front housing 1 and back cabinet 7 are installed in middle 5 two sides of casing, the assembling of disc type electric machine is realized, due to fore bearing 11 and rear bearing 8
It is located on front housing 1 and back cabinet 7, compared to the structure that existing bearing is located at stator inner-ring bearing room, far from disc type
Maximum pyrotoxin in motor, the amount of heat that bearing rotation generates can directly be radiated by front housing 1 and back cabinet 7, heat
It influences each other with stator heat production smaller, and the fulcrum spacing of fore bearing 11 and rear bearing 8 increases, and improves rotor-bearing system
Stability and reliability can effectively reduce rotor-support-foundation system resonance risk.By to fore bearing 11 and rear bearing 8 in disc type electric machine
The layout again of Support Position, more existing bearing are installed on disk type electric machine stator inner ring structure, are conducive to control and improve bearing
Installation accuracy, improve the service life of bearing, and then improve the functional reliability of disc type electric machine inner bearing.
In one specific embodiment of this case, the shaft through hole 13 of the middle part setting accommodating shaft of stator 4, shaft 10 is corresponded to
Shaft through hole 13 is provided with flange mounting base 12, and the middle part of preceding rotor 2 and rear rotor 6 is provided with solid with flange mounting base 12
The ring flange of dress.Preceding rotor 2 and rear rotor 6 and shaft 10 rotate synchronously, and change to reduce to disc type electric machine internal structure, benefit
With existing 4 inner-ring bearing cell structure of stator, as the shaft through hole 13 of the axial frame support of shaft 10, shaft 10 is corresponding to be turned
Flange mounting base 12 is arranged in the outer ring of 13 position of axis through hole, and accordingly, the middle part inner ring of preceding rotor 2 and rear rotor 6 is respectively provided with
Ring flange realizes the positioning to preceding rotor 2 and rear rotor 6 by flange plate structure and flange mounting base 12.
The front axle bearing bore 101 of accommodating fore bearing is offered on front housing 1, after accommodating rear bearing 8 is offered on back cabinet 7
Bearing hole 701；The front end of shaft 10 is provided with the preceding shaft shoulder limited to the inner ring of fore bearing 11, the rear end setting of shaft 10
There is the rear shaft shoulder that the inner ring to rear bearing 8 is limited.
It is understood that due to having opened up bearing mounting hole on front housing 1 and back cabinet 7, before existing
7 structure of casing 1 and back cabinet, 7 axial width of front housing 1 and back cabinet provided in this embodiment increase the bearing of frame support bearing
Holder structure, the thickness that will lead to front housing 1 and back cabinet 7 thicken, in order to avoid to 8 support construction of fore bearing 11 and rear bearing
Change cause disc type electric machine integral thickness to thicken, rotor, including preceding rotor 2 and rear rotor 6, the ring flange of inner ring are arranged in
Close to the side of stator 4, ring flange is thinner than the overall thickness of rotor, and since rotor has certain assembly thickness, rotor inner ring is remote
Side from ring flange forms the accommodating counterbore of an accommodating casing bearing block, to provide front housing and the back cabinet thickness side of thickeing
To accommodating space, avoid on disc type electric machine integral thickness influence.
In one specific embodiment of this case, flange mounting base 12 is annular flange mounting base, the interference fit suit of shaft 10
In in the centre bore of annular flange mounting base 12.Flange mounting base 12 is fixedly arranged on the outer ring of shaft 10, at the same shaft 10 simultaneously by
Fore bearing 11 and the support of 8 frame of rear bearing, so that shaft 10 and flange mounting base 12 form the Step Shaft of biggish drop.
In order to reduce the difficulty of processing of shaft 10, separate structure, flange peace are set by shaft 10 and flange mounting base 12
Dress seat 12 is set as annular flange mounting base, the two interference fit, and annular flange mounting base 12 is set in shaft 10, shaft 10
It is upper that the shaft shoulder limited to flange mounting base 12 is set, by shaft 10 and 12 installation site of flange mounting base and shaft 10
With the precision controlling of fore bearing 11 and 8 frame of rear bearing support position, guarantee pair of the preceding rotor 2 with rear rotor 6 to locating rotation position
Title property arrangement, improves the work structuring stability of disc type electric machine.
In one specific embodiment of this case, flange mounting base 12 includes the axial direction abutting along shaft 10, and solid with preceding rotor 2
The forward flange mounting base connect, the affixed rear flange mounting base of He Yuhou rotor 6；The outer ring surface of flange mounting base 12 is by its middle part
The protection anchor ring cumulative to both ends outer diameter.
Shaft 10 drives preceding rotor 2 and rear rotor 6 to rotate by flange mounting base 12, flange mounting base in rotation process
12 rotate in the inner ring of stator, by the control to ring gap in flange mounting base 12 and rotor, avoid 12 mistake of flange mounting base
To the influence of 4 inner ring of stator in journey.
Meanwhile when disc type electric machine assembling, shaft 10 protrudes into 4 inner ring of stator, since flange mounting base 12 is located in stator 4
Circle is guarantee flange mounting base 4 to the stability of 6 location structure of preceding rotor 2 and rear rotor, and avoids the outer of flange mounting base 12
Circle interferes 4 inner ring of stator, sets the protection anchor ring cumulative to both ends outer diameter by its middle part, the protection for flange mounting base 12
Anchor ring is in waist drum structure, while can be packed into 4 inner ring of stator for flange mounting base 12 and provide enough activity spaces, improves installation peace
Quan Xing.
In one specific embodiment of this case, fore bearing 11 is single-row roller bearing, and rear bearing 8 is double-row roller bearing.Before
The magnet steel side of rotor 2 and 3 side of stator core of stator 4 are opposite, the magnet steel side 9 of rear rotor 6 and the other side phase of stator core
Right, preceding rotor 2 and rear rotor 6 rotate generate magnetic effect with stator 4 simultaneously, therefore need to guarantee magnetic effect between stator and two rotors
The stability in region, double-row roller bearing can play anti-leaping function in the axial direction of shaft, set single-row for fore bearing
Roller bearing to shaft carry out frame support, set double-row roller bearing for rear bearing, avoid the play during shaft, avoid by
Axial float in the disk type electric motor rotor course of work is improved to the bearing during rotor supporting structure and power output
Stability of strutting system.
In one specific embodiment of this case, preceding rotor 2 is including back iron 23, the magnet steel 22 being attached on back iron 23, and to magnetic
The magnet steel retainer 21 of the progress axial restraint of steel 22；
It further include the rotor retainer 24 that frame support is carried out to back iron 23 and magnet steel retainer 21, ring flange 26 is set to rotor
The inner ring of retainer 24；Preceding rotor 2 is identical with rear 6 structure of rotor.
Preceding rotor 2 is identical with rear 6 structure of rotor, and the two is arranged symmetrically.It is rear to turn here by the explanation of the structure of preceding rotor
Son is arranged using with its equivalent constructions, is repeated no more.
Preceding rotor 2 is supported magnet steel 22 by back iron 23, by magnet steel retainer 21 by magnet steel 22 on back iron 23
Position is limited.Back iron 23 is placed on rotor retainer 21, and the inner ring of rotor retainer 21 is set as 26 structure of ring flange,
Magnet steel retainer 21 carries out after press fitting is fixed on back iron 23 magnet steel 22, then by the fixed structure of 24 pairs of the two of rotor retainer
Carry out further positioning and locking.
In one specific embodiment of this case, the inner ring of rotor retainer 24, which is provided with, is fixed magnet steel retainer 21
Retainer positioning screw, and the rotor fixed position screw affixed with flange mounting base.To realize magnet steel retainer 21 to magnet steel 22
It compresses, the inner ring of magnet steel retainer 21 is likewise provided as flange plate structure, the ring flange of 24 inner ring of rotor retainer is as magnetic
The flange seat of steel retainer 21, magnet steel retainer 21 is bonded with back iron 23 magnet steel 22 is compressed after, pass through rotor retainer
The retainer positioning screw stretched out on 24 ring flange 26 locks magnet steel retainer, to realize magnet steel retainer to back
The compression of iron, and it is fixed to the inner ring of rotor retainer.
In one specific embodiment of this case, be additionally provided on rotor retainer 24 to the excircle of magnet steel 22 and back iron 23 into
The cyclic annular carbon fiber ring 25 of row limit.Rotor high-speed rotation during the work time, magnet steel 22 and magnet steel on back iron 23 are kept
The inner ring of frame 21 will receive higher centrifugal force effect, will lead to rotor structure deformation when serious.By in rotor retainer
Outer circle circumferential direction place a cyclic annular carbon fiber ring, further held tightly by excircle of the cyclic annular carbon fiber ring to rotor, further
Improve rotor structure stability.
In embodiment, the back iron accommodation groove of the settable accommodating back iron of the inner ring of rotor retainer 24, and it is located at rotor
The carbon fiber ring accommodation groove of retainer outer ring, the settable set holding position to carbon fiber ring in the outer ring of rotor retainer limit
Flange, back iron and carbon fiber ring are packed by the same side of rotor retainer axial direction.
Disc type electric machine provided in this embodiment, the fore bearing of motor, rear bearing be arranged respectively at motor front housing and after
On casing, the distance of two bearings fulcrum increases, and improves the stability and reliability of rotor-bearing system, reduces rotor-support-foundation system
The risk of resonance.More existing disc type electric machine bearing is installed in the stator of the motor circle configurations, improves the installation accuracy of bearing,
Improve the service life of bearing.
Further, disc type electric machine fore bearing and rear bearing, far from the maximum pyrotoxin stator of motor, the use of bearing
Temperature is guaranteed, and improves the reliability and service life of bearing.
Certainly, disc type electric machine provided by the present application is carried out applied to the disc type electric machine by taking birotor, single stator structure as an example
Illustrate, but equally also extend to the electric machine structure of other more rotors, multiple stators, by it is traditional using stator inner ring as
Bearing chamber structure is distributed on casing and independent bearing block is arranged, and is selected by bearing self structure and rotor structure changes
Into raising disc type electric machine stability, details are not described herein again.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (9)
1. a kind of disc type electric machine, which is characterized in that be loaded on the front housing of preceding rotor-side including covering, lid is loaded on the rear machine of rear rotor-side
Shell, and clamp the middle casing of stator；
Further include the shaft for driving the preceding rotor and the rotation of rotor afterwards, consolidates respectively on the front housing and the back cabinet
The fore bearing and rear bearing of the shaft are supportted equipped with frame.
2. disc type electric machine according to claim 1, which is characterized in that the middle part setting of the stator accommodates the shaft
Shaft through hole, the shaft correspond to the shaft through hole and are provided with flange mounting base, the preceding rotor and the rear rotor
Middle part be provided with the ring flange being fixedly mounted with the flange mounting base.
3. disc type electric machine according to claim 2, which is characterized in that the flange mounting base is annular flange mounting base,
The shaft interference fit is set in the centre bore of the annular flange mounting base.
4. disc type electric machine according to claim 3, which is characterized in that the flange mounting base includes the axis along the shaft
To abutting, and the forward flange mounting base affixed with the preceding rotor, and the rear flange mounting base affixed with the rear rotor；It is described
The outer ring surface of flange mounting base is the protection anchor ring cumulative to both ends outer diameter by its middle part.
5. disc type electric machine according to claim 2, which is characterized in that offer the accommodating fore bearing on the front housing
Front axle bearing bore, offer the rear axle bearing bore for accommodating the rear bearing on the back cabinet；
The front end of the shaft is provided with the preceding shaft shoulder limited to the inner ring of the fore bearing, the rear end setting of the shaft
There is the rear shaft shoulder that the inner ring to the rear bearing is limited.
6. disc type electric machine according to claim 5, which is characterized in that the fore bearing is single-row roller bearing, after described
Bearing is double-row roller bearing.
7. disc type electric machine according to claim 2, which is characterized in that the forward attached bag includes back iron, is attached at the back
Magnet steel on iron, and the magnet steel retainer of axial restraint is carried out to the magnet steel；
It further include the rotor retainer that frame support is carried out to the back iron and the magnet steel retainer, the ring flange is set to described
The inner ring of rotor retainer；
The preceding rotor is identical with the rear rotor structure.
8. disc type electric machine according to claim 7, which is characterized in that the inner ring of the rotor retainer is provided with to described
The retainer positioning screw that magnet steel retainer is fixed, and the rotor fixed position screw affixed with the flange mounting base.
9. disc type electric machine according to claim 7, which is characterized in that be additionally provided on the rotor retainer to the magnetic
The cyclic annular carbon fiber ring that the excircle of steel and the back iron is limited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705706.8U CN208738957U (en) | 2018-10-19 | 2018-10-19 | Disc type electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821705706.8U CN208738957U (en) | 2018-10-19 | 2018-10-19 | Disc type electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738957U true CN208738957U (en) | 2019-04-12 |
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ID=66035564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821705706.8U Active CN208738957U (en) | 2018-10-19 | 2018-10-19 | Disc type electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208738957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245401A (en) * | 2018-10-19 | 2019-01-18 | 核心驱动科技（金华）有限公司 | Disc type electric machine |
-
2018
- 2018-10-19 CN CN201821705706.8U patent/CN208738957U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245401A (en) * | 2018-10-19 | 2019-01-18 | 核心驱动科技（金华）有限公司 | Disc type electric machine |
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Address after: 321100 Jiangnan Park 23, Lanxi Economic Development Zone, Jinhua, Zhejiang Patentee after: Zhejiang Panhu Power Technology Co., Ltd. Address before: 321100 Jiangnan Park 23, Lanxi Economic Development Zone, Jinhua, Zhejiang Patentee before: Core drive technology (Jinhua) Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |