CN106972680A - Bearing assembly and the motor with it - Google Patents
Bearing assembly and the motor with it Download PDFInfo
- Publication number
- CN106972680A CN106972680A CN201710330956.1A CN201710330956A CN106972680A CN 106972680 A CN106972680 A CN 106972680A CN 201710330956 A CN201710330956 A CN 201710330956A CN 106972680 A CN106972680 A CN 106972680A
- Authority
- CN
- China
- Prior art keywords
- vibration damping
- bearing
- bearing assembly
- damping body
- assembly according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Support Of The Bearing (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a kind of bearing assembly and the motor with it.Bearing assembly, including：Bearing portion；Vibration damping portion, vibration damping portion is connected with bearing portion, and vibration damping portion is used to abut against with installation foundation.The form that vibration damping portion is provided directly as being connected with bearing portion so that the damping portion being arranged on bearing portion is directly abutted against with installation foundation, efficiently avoid the problem of bearing portion produces axial motion.Simultaneously, it is to avoid the situation that bearing portion collides with installation foundation, the noise of the motor with the bearing assembly is significantly reduced, improve the usage experience of user.
Description
Technical field
The present invention relates to motor device technical field, in particular to a kind of bearing assembly and the motor with it.
Background technology
As people's living standard is improved, requirement of the industry-by-industry to noise is more strict.For threephase asynchronous,
Because its power is big, rotating speed is high, exist always noise it is big, it is ear-piercing the problem of, affect the physical and mental health of people.How to reduce
Noise of motor, it has also become threephase asynchronous mostly important technology controlling and process link and research direction.
Bearing is one of mostly important, the most accurate parts of motor, and it plays the mechanical rotary body of support, reduction and turned
The coefficient of kinetic friction, play the raising effect such as rotating accuracy.Bearing is also the position for being easiest to break down, and most of motor is produced
Audible noise abnormal sound is all attributed to the design problem of bearing.
Threephase asynchronous is during operation, and rotor is drawn except the radial direction electromagnetism produced by stator winding
Outside power, axial stress is isometric caused by also suffering from axial magnetic pulling force, the axial suction that fan blade operating is produced, assembly unbalanc
To the effect of power, axial float is produced, it is related to produce play with the bearing that axle coordinates, bearing is produced collision with end cap, cause
The problems such as bearing damage.Bearing can also cause end cap to resonate, cause while being collided with end cap by conduct vibrations to end cap
Noise increases.
In the prior art, most of motor manufacturer can increase when assembling motor in the bearing chamber of the drive end bearing bracket of motor
One piece of wavy spring packing ring is installed, to suppress the vibration noise of motor.If but exist support, the machined piece such as end cap axially plus
When work dimensional discrepancy is larger, the axial pre tightening force of motor can be made less than normal, cause motor bearings that there is larger axial float.Simultaneously
Loose wavy spring packing ring easily produces high-frequency noise with bearing collision.
The content of the invention
It is electric in the prior art to solve it is a primary object of the present invention to provide a kind of bearing assembly and motor with it
There is the problem of axial motion is big in machine bearing.
To achieve these goals, according to an aspect of the invention, there is provided a kind of bearing assembly, including：Bearing portion；
Vibration damping portion, vibration damping portion is connected with bearing portion, and vibration damping portion is used to abut against with installation foundation.
Further, it is provided with vibration damping portion at least one end face of bearing portion.
Further, vibration damping portion includes：Vibration damping body, vibration damping body is hollow tubular structure, the first of vibration damping body
The internal diameter at end gradually increases from inside to outside.
Further, the footpath of the projection line in section of the inwall of first end along the axial direction of vibration damping body and vibration damping body
There is angle α to the line in direction, wherein, 20 °≤α≤60 °.
Further, the length of vibration damping body is L, and the length of the first end of vibration damping body is L1, wherein, L1=0.5L.
Further, L1=△ i+ △ L, wherein, L1 is the length of the first end of vibration damping body；△ i are vibration damping body
Decrement；△ L are actual reserved depth.
Further, it is provided with annular fat groove on the inner peripheral surface at second end relative with first end of vibration damping body.
Further, the second end offers shape retention groove, and shape retention groove is used to accommodate metallic gasket, shape retention groove
The minimum diameter of cell wall of axis side of close vibration damping body be more than the maximum inner diameter of annular fat groove.
Further, vibration damping portion includes：Wavy spring packing ring, wavy spring packing ring is welded to connect with bearing portion, or, ripple
Shape spring washer is integrally formed with bearing portion.
Further, bearing portion includes：Bearing outer ring；Bearing inner race, bearing inner race is sheathed in bearing outer ring, in bearing
The relative bearing outer ring of circle is rotatably arranged with vibration damping portion is connected with bearing outer ring.
According to another aspect of the present invention there is provided a kind of motor, including bearing assembly, bearing assembly is above-mentioned bearing
Component.
Apply the technical scheme of the present invention, the form that vibration damping portion is provided directly as being connected with bearing portion so that set
Directly abutted against in the damping portion on bearing portion with installation foundation, efficiently avoid the problem of bearing portion produces axial motion.
Simultaneously, it is to avoid the situation that bearing portion collides with installation foundation, the motor with the bearing assembly is significantly reduced
Noise, improves the usage experience of user.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the configuration schematic diagram of the embodiment of the bearing assembly according to the present invention；
Fig. 2 shows the assembling structure schematic diagram of the embodiment of Fig. 1 axis bearing assemblies；
Fig. 3 shows the structural representation for the embodiment that Fig. 1 axis bearing assembly is assembled with end cap；
Fig. 4 shows the internal structure schematic diagram of the embodiment of Fig. 1 axis bearing assemblies；
Fig. 5 shows in Fig. 4 mplifying structure schematic diagram at A；
Fig. 6 shows the structural representation that vibration damping portion is assembled with iron plate in Fig. 1；
Fig. 7 shows the structural representation at the first visual angle of another embodiment of the bearing assembly according to the present invention；
Fig. 8 shows the structural representation at the second visual angle of the embodiment of the bearing assembly in Fig. 7.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, bearing portion；11st, bearing outer ring；12nd, bearing inner race；13rd, steel ball；14th, retainer；15th, rivet；16th, keep
Frame；17th, sealing ring；
20th, vibration damping portion；21st, vibration damping body；30th, annular fat groove；40th, shape retention groove；50th, wavy spring packing ring；60th, hold
Lid；70th, rotating shaft；80th, iron plate.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first ", " second " in the description and claims of this application and accompanying drawing etc.
It is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the art so used
Language can be exchanged in the appropriate case, so that presently filed embodiment described herein for example can be with except illustrating herein
Or the order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Covering is non-exclusive to be included, for example, containing process, method, system, product or the equipment of series of steps or unit need not limit
In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production
Product or the intrinsic other steps of equipment or unit.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make identical device is presented with like reference characters, thus they are retouched by omitting
State.
With reference to shown in Fig. 1 to Fig. 8, there is provided a kind of bearing assembly for embodiments in accordance with the present invention.
Specifically, the bearing assembly includes bearing portion 10 and vibration damping portion 20.Vibration damping portion 20 is connected with bearing portion 10, vibration damping
Portion 20 is used to abut against with installation foundation.
In the present embodiment, it is provided with vibration damping portion 20 at least one end face of bearing portion 10.So setting can be effective
Ground avoids the problem of bearing portion 10 collides with installation foundation and produces loud noise.Wherein, the installation foundation is end cap 60.
Specifically, vibration damping portion 20 includes vibration damping body 21.Vibration damping body 21 is hollow tubular structure, vibration damping body 21
The internal diameter of first end gradually increases from inside to outside.As shown in fig. 6, the internal face of the first end of vibration damping body 21 forms bell-mouthed
Form, can so be effectively increased the reliability in vibration damping portion 20.
Further, the projection line in the section of axial direction of the inwall of first end along vibration damping body 21 and vibration damping body 21
The line of radial direction there is angle α, wherein, 20 °≤α≤60 °.It refer to again shown in Fig. 6, the length of vibration damping body 21 is
L, the length of the first end of vibration damping body 21 is L1, wherein, L1=0.5L, and L1=△ i+ △ L, wherein, L1 is vibration damping body
The length of 21 first end, △ i are the decrement of vibration damping body 21, and △ L are actual reserved depth.Wherein, usual standard electromotor
According to the difference of seat No., drive end bearing bracket can reserve certain space to be put into wavy spring packing ring, and being somebody's turn to do " certain space " is
For actual reserved depth △ L, 1.5mm≤△ L≤2mm.So set and cause when being processed assembling to motor without pre-
Stay the space of certain installation wavy spring packing ring is installed, while so that the motor with the bearing assembly has good drop
Make an uproar effect.
In order to further improve in the effectiveness in vibration suppression in vibration damping portion, second end relative with first end of vibration damping body 21
Annular fat groove 30 is provided with side face.Annular fat groove and bearing inner race constitute the storage room of pressure buffer chamber and lubricating grease, can be with
The leakage of lubricating grease is hindered, the lubricating grease oozed out from Bearing inner is either stored in from the extraneous dust impurity for immersing Bearing inner
In annular annular groove, alicyclic ring is formed, sealing effectiveness is enhanced.
Preferably, the second end of vibration damping body 21 offers shape retention groove 40.Shape retention groove 40 is used to accommodate metal
Pad, the minimum diameter of the cell wall of the axis side of the close vibration damping body 21 of shape retention groove 40 is more than annular fat groove 30 most
Large diameter.The situation that metallic gasket is directly contacted and worn and torn with rotating shaft 70 can be avoided by so setting, meanwhile, metal is set
Pad ensure that deformation is less likely to occur when extruding for vibration damping body 21, add the reliability of vibration damping body 21.It is excellent
Selection of land, metallic gasket can be iron plate 80.
In another embodiment of the application, vibration damping portion 20 include wavy spring packing ring 50, wavy spring packing ring 50 with
Bearing portion 10 is welded to connect.Certainly, can also be by the case where ensureing that wavy spring packing ring 50 can play a part of vibration damping
Wavy spring packing ring 50 is integrally formed setting with bearing portion 10.The waveform that can avoid separating with vibration damping body 21 is so set
Spring washer 50 is arranged on the situation for causing to increase noise in preset clearance.
As shown in figure 1, bearing portion 10 includes bearing outer ring 11 and bearing inner race 12.Bearing inner race 12 is sheathed on bearing outer ring
In 11, bearing inner race 12 is with respect to bearing outer ring 11 rotatably arranged with vibration damping portion 20 is connected with bearing outer ring 11.So set
It can prevent the bearing assembly from causing the problem of noise increases axially occurring vibration.
Bearing assembly in above-described embodiment can be also used for motor device technical field, i.e., according to the opposing party of the present invention
There is provided a kind of motor in face.The motor includes bearing assembly, and bearing assembly is the bearing assembly in above-described embodiment.
Specifically, in the prior art, wavy spring packing ring specification species used in the motor of different model is corresponded to not
Together, it is necessary to purchase miscellaneous wavy spring packing ring, and material is combed.In order to install wavy spring packing ring, it is necessary to
One of installation procedure, waste of time, and in the case where the axial dimension deviation of machined piece is larger, the axial pretightening of motor
Power is less than normal, causes larger axial float and obvious noise.
Using the bearing assembly in embodiments herein so that motor, which is installed, becomes fast and easy, motor dress is simplified
With flow, vibration-proof structure is come with bearing, the bearing can effectively suppress the axial vibration of motor, reduce motor noise, make
Motor even running, while reducing material variety, saves motor cost.
Specifically, it is steel ball 13, retainer (14,16), vibration damping portion five that the bearing arrangement, which includes bearing outer ring 11, rolling element,
Individual part is constituted, wherein, it is connected between two retainers by rivet 15.Vibration damping portion material is fluorubber, installed in bearing
On outer ring, act between bearing outer ring and end cap, vibration damping portion produces pretightning force by compression after motor assembling, so as to suppress motor
Axial float, and the eigentone of fluorubber is very low, and noise will not be also produced even if colliding.
As shown in Figure 4 and Figure 5, rolling element is arranged between bearing outer ring and bearing inner race, is consolidated by the retainer on both sides
It is scheduled on raceway, sealing ring 17 is arranged on the shield groove of bearing outer ring, and the dustproof groove of its interior lip and bearing inner race is formed
Sealing, vibration damping body be particular design damping type bearing sealed ring, on the shield groove of bearing outer ring, its inner edge with
Bearing inner race plane formation sealing, while being provided with the i.e. annular fat groove of space grease trough at one, fat groove depth 0.5mm, width on front
1mm, fat groove constitutes the storage room of pressure buffer chamber and lubricating grease with inner ring, the leakage of lubricating grease can be hindered, from Bearing inner
Dust impurity of the lubricating grease oozed out either from extraneous immersion Bearing inner is stored in annular groove, is formed alicyclic ring, is enhanced sealing
Effect.
As shown in fig. 6, it is inserted in the vibration damping body that material is fluorubber by the annular iron plate being stamped and formed out, to protect
Hold the shape of vibration damping body sealing ring, annulus iron plate thickness H=1~2mm, for the high different motor in center, its thickness can
To be arranged to inconsistent height.The inclination angle of the inner peripheral surface of vibration damping body is α, 20 °≤α≤60 °, will not be to when making its stress
Inside produces deformation and contacted with bearing inner race.The race diameter of vibration damping body be D, inner ring be diameter D1, total height L, effectively
The height of compression section is L1=L/2.
As shown in figure 3, vibration damping body is deformed upon by the extruding of end cap 60 and bearing outer ring, elastic force is produced, and is subtracted
The body that shakes is arranged on bearing outer ring, and elastic force reaction is on bearing outer ring, so as to play a part of pretension.If vibration damping body
Decrement be Δ i, the modulus of elasticity of fluorubber is H=7.8MPa, and the contact area of vibration damping body and end cap is S, vibration damping sheet
The be squeezed elastic stress of generation of body is F, then elastic stress：
Wherein：
It can obtain：
Usual standard electromotor can reserve 1.5~2mm space to be put into waveform bullet according to the difference of seat No., drive end bearing bracket
Spring packing ring, therefore the height L1=Δs i+ (1.5~2) for being effectively compressed part of vibration damping body can be designed.
Thus, can be according in wavy spring packing ring standard JB/T 7590, for required by the standard electromotor of different model
Pretightning force, and the corresponding physical dimension of model standard electromotor, calculate required decrement, to design different sealings
Enclose size.
Using the bearing assembly, it can reduce the cost of motor without installing wavy spring packing ring, reduce motor thing
Expect species, simplify general assembly process, production efficiency is improved, while without other objects between bearing and the end cap of motor, motor exists
Additional noise will not be produced during operation.
As shown in Figure 7 and Figure 8, wavy spring packing ring can also be soldered on bearing outer ring, by wave-shaped spring pads circle with
Bearing outer ring is welded as a whole so that wave-shaped spring pads circle has consistent vibration frequency with bearing outer ring, so motor shakes
The additional noise of high frequency will not be produced when dynamic, while using the bearing assembly of this kind of structure, being easily installed, phase asynchronous electricity is reduced
The installation step of motivation, improves the production efficiency of motor.
Than that described above, in addition it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in this manual
Example ", " embodiment " etc., refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary
Property description at least one embodiment in.It is not necessarily to refer to same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot
Other embodiment is closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
1. a kind of bearing assembly, it is characterised in that including：
Bearing portion (10)；
Vibration damping portion (20), the vibration damping portion (20) is connected with the bearing portion (10), and the vibration damping portion (20) is used for and installation
Basis is abutted against.
2. bearing assembly according to claim 1, it is characterised in that set at least one end face of the bearing portion (10)
It is equipped with the vibration damping portion (20).
3. bearing assembly according to claim 1 or 2, it is characterised in that the vibration damping portion (20) includes：
Vibration damping body (21), the vibration damping body (21) is hollow tubular structure, the first end of the vibration damping body (21)
Internal diameter gradually increases from inside to outside.
4. bearing assembly according to claim 3, it is characterised in that the inwall of the first end is along the vibration damping body
(21) projection line in the section of axial direction and the line of the radial direction of the vibration damping body (21) have angle α, wherein,
20°≤α≤60°。
5. bearing assembly according to claim 3, it is characterised in that the length of the vibration damping body (21) is L, described to subtract
Shake body (21) first end length be L1, wherein, L1=0.5L.
6. bearing assembly according to claim 5, it is characterised in that the L1=△ i+ △ L, wherein,
The L1 is the length of the first end of the vibration damping body (21)；
The △ i are the decrement of the vibration damping body (21)；
The △ L are actual reserved depth.
7. bearing assembly according to claim 3, it is characterised in that the vibration damping body (21) with the first end phase
To the second end inner peripheral surface on be provided with annular fat groove (30).
8. bearing assembly according to claim 7, it is characterised in that second end offers shape retention groove (40),
The shape retention groove (40) is used to accommodate metallic gasket, the close vibration damping body (21) of the shape retention groove (40)
The minimum diameter of the cell wall of axis side is more than the maximum inner diameter of the annular fat groove (30).
9. bearing assembly according to claim 1, it is characterised in that the vibration damping portion (20) includes：
Wavy spring packing ring (50), the wavy spring packing ring (50) is welded to connect with the bearing portion (10), or,
The wavy spring packing ring (50) is integrally formed with the bearing portion (10).
10. bearing assembly according to claim 1, it is characterised in that the bearing portion (10) includes：
Bearing outer ring (11)；
Bearing inner race (12), the bearing inner race (12) is sheathed in the bearing outer ring (11), bearing inner race (12) phase
To the bearing outer ring (11) rotatably arranged with the vibration damping portion (20) is connected with the bearing outer ring (11).
11. a kind of motor, including bearing assembly, it is characterised in that the bearing assembly is any one of claim 1 to 10 institute
The bearing assembly stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330956.1A CN106972680B (en) | 2017-05-11 | 2017-05-11 | Bearing assembly and motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330956.1A CN106972680B (en) | 2017-05-11 | 2017-05-11 | Bearing assembly and motor with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106972680A true CN106972680A (en) | 2017-07-21 |
| CN106972680B CN106972680B (en) | 2023-10-03 |
Family
ID=59331772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710330956.1A Active CN106972680B (en) | 2017-05-11 | 2017-05-11 | Bearing assembly and motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106972680B (en) |
Citations (9)
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| CN1327292A (en) * | 2001-04-12 | 2001-12-19 | 金马达制造厂有限公司 | Shock reducing method for small motor and bearing shock reducing ring thereof |
| US20060062505A1 (en) * | 2003-05-28 | 2006-03-23 | Roland Hoefs | Electrical machine |
| CN201374606Y (en) * | 2009-03-18 | 2009-12-30 | 常州富兴机电有限公司 | Damping motor |
| CN201393129Y (en) * | 2009-04-03 | 2010-01-27 | 中山大洋电机股份有限公司 | Shock absorption structure of motor bearing system |
| CN202206238U (en) * | 2011-09-22 | 2012-04-25 | 北京三一电机系统有限责任公司 | Motor and mining machine |
| CN202817975U (en) * | 2012-05-07 | 2013-03-20 | 华锐风电科技(集团)股份有限公司 | Disk type generator |
| CN204517558U (en) * | 2015-02-06 | 2015-07-29 | 上海日立电器有限公司 | A kind of vibration damping end cap and there is the motor of vibration damping end cap |
| CN105099059A (en) * | 2015-08-12 | 2015-11-25 | 浙江工业大学 | Measures for preventing outer rotor fan rotor from falling |
| CN206775286U (en) * | 2017-05-11 | 2017-12-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and there is its motor |
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2017
- 2017-05-11 CN CN201710330956.1A patent/CN106972680B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327292A (en) * | 2001-04-12 | 2001-12-19 | 金马达制造厂有限公司 | Shock reducing method for small motor and bearing shock reducing ring thereof |
| US20060062505A1 (en) * | 2003-05-28 | 2006-03-23 | Roland Hoefs | Electrical machine |
| CN201374606Y (en) * | 2009-03-18 | 2009-12-30 | 常州富兴机电有限公司 | Damping motor |
| CN201393129Y (en) * | 2009-04-03 | 2010-01-27 | 中山大洋电机股份有限公司 | Shock absorption structure of motor bearing system |
| CN202206238U (en) * | 2011-09-22 | 2012-04-25 | 北京三一电机系统有限责任公司 | Motor and mining machine |
| CN202817975U (en) * | 2012-05-07 | 2013-03-20 | 华锐风电科技(集团)股份有限公司 | Disk type generator |
| CN204517558U (en) * | 2015-02-06 | 2015-07-29 | 上海日立电器有限公司 | A kind of vibration damping end cap and there is the motor of vibration damping end cap |
| CN105099059A (en) * | 2015-08-12 | 2015-11-25 | 浙江工业大学 | Measures for preventing outer rotor fan rotor from falling |
| CN206775286U (en) * | 2017-05-11 | 2017-12-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and there is its motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106972680B (en) | 2023-10-03 |
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