CN207868911U - Electric motor end cap bearing vibration-proof structure - Google Patents
Electric motor end cap bearing vibration-proof structure Download PDFInfo
- Publication number
- CN207868911U CN207868911U CN201820202239.0U CN201820202239U CN207868911U CN 207868911 U CN207868911 U CN 207868911U CN 201820202239 U CN201820202239 U CN 201820202239U CN 207868911 U CN207868911 U CN 207868911U
- Authority
- CN
- China
- Prior art keywords
- bearing
- damping washer
- rotor
- accommodating cavity
- vibration
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
A kind of electric motor end cap bearing vibration-proof structure, is related to technical field of motors, and the solution is to reduce motor operation noise and vibration.The structure includes bearing chamber, bearing accommodating cavity is offered on the bearing chamber, rotor bearing is equipped in bearing accommodating cavity, the right part of the rotor bearing is coaxially equipped with the damping washer of annular, and the cavity wall of rotor bearing and bearing accommodating cavity with damping washer tight fit, the right hand edge of damping washer bend inwards after tight against firmly rotor bearing right side, annular cover plate is fixed on bearing chamber, the cover board is coaxially laid with damping washer, and the right side of damping washer is tightly suppressed, there are gaps between the peripheral surface left part and the cavity wall of bearing accommodating cavity of the rotor bearing.Structure provided by the utility model can reduce motor operation noise and vibration.
Description
Technical field
The utility model is related to motor technologies, more particularly to a kind of technology of electric motor end cap bearing vibration-proof structure.
Background technology
The bearing with end cover room of motor is the component for accommodating rotor bearing on motor, is normally mounted at the end cap of motor
On.As shown in Fig. 2, when rotor 20 rotates, rotor bearing 21 will produce noise, vibration, be operated to reduce rotor bearing 21
When noise, vibration, some motors are nested with a bearing gum cover 22 on rotor bearing 21, are then again installed to rotor bearing
In the bearing with end cover room 23 of rigidity, since bearing gum cover 22 is laid in peripheral surface and the bearing with end cover room 23 of rotor bearing 21
It, can be to effectively reducing the noise and vibration generated in rotor bearing operation process between wall.But motor is by under limiting condition
It is loaded and the collective effect of unilateral magnetic force, radial load is very big, and strength is easy to make the unilateral deformation of bearing gum cover, when this
When kind of deflection is greater than air gap between electric machine rotor, the rotor of motor will be made to generate friction with stator, to generate
Prodigious noise and vibration.
In addition, due to the presence of bearing gum cover so that rotor bearing is easy when being packed into bearing with end cover room because of bearing gum cover
Friction texturizing and influence installation accuracy, this can expanded motor operation when noise, vibration.
Utility model content
Defect present in for the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a kind of energy
The electric motor end cap bearing vibration-proof structure of noise, vibration when reduction motor operation.
In order to solve the above-mentioned technical problem, a kind of electric motor end cap bearing vibration-proof structure provided by the utility model, including
Bearing chamber offers bearing accommodating cavity on the bearing chamber, rotor bearing is equipped in bearing accommodating cavity, it is characterised in that：
The right part of the rotor bearing is coaxially equipped with the damping washer of annular, and rotor bearing and bearing accommodating cavity
Cavity wall with damping washer tight fit, the right hand edge of damping washer bend inwards after tight against firmly rotor bearing right side, bearing
Annular cover plate is fixed on room, which coaxially lays with damping washer, and tightly suppresses the right side of damping washer；
There are gaps between the peripheral surface left part and the cavity wall of bearing accommodating cavity of the rotor bearing.
Further, in the cavity wall of the bearing accommodating cavity, with the cavity wall of damping washer peripheral surface engaging portion be in from a left side to
Right radial dilatation it is tubaeform.
Further, between the peripheral surface left part and the cavity wall of bearing accommodating cavity of the rotor bearing there are 0.02~
The gap of 0.1mm.
Electric motor end cap bearing vibration-proof structure provided by the utility model, since damping washer is installed in place in rotor bearing
It is reloaded into bearing accommodating cavity afterwards, damping washer will not be deformed when mounted, and the assembling quality of rotor bearing is high, can reduce
Noise, vibration when motor operation, and damping washer is positioned only at the right part of rotor bearing, can be deformed in damping washer
It limits the radial-play of rotor bearing when big using the cavity wall of bearing accommodating cavity, and then avoids generating because rotor mutually rubs
Noise and vibration.
Description of the drawings
Fig. 1 is the main structure diagram of the electric motor end cap bearing vibration-proof structure of the utility model embodiment；
Fig. 2 is the main structure diagram of existing electric motor end cap bearing chamber.
Specific implementation mode
The embodiments of the present invention are described in further detail below in conjunction with description of the drawings, but the present embodiment and are not had to
In limitation the utility model, every similar structure using the utility model and its similar variation should all be included in the utility model
Protection domain, the pause mark in the utility model indicates the relationship of sum.
As shown in Figure 1, a kind of electric motor end cap bearing vibration-proof structure that the utility model embodiment is provided, including bearing chamber
13, bearing accommodating cavity 131 is offered on the bearing chamber 13, is equipped with rotor bearing 11 in bearing accommodating cavity 131, feature exists
In：
The right part of the rotor bearing 11 is coaxially equipped with the damping washer 12 of annular, and rotor bearing 11 and bearing hold
Set the cavity wall of chamber 131 with 12 tight fit of damping washer, the right hand edge of damping washer 12 bend inwards after tight against firmly rotor bearing
11 right side is fixed with annular cover plate 14 on bearing chamber 13, the cover board 14 and damping washer 12 is coaxial lays, and tightly suppresses and subtract
Shake the right side of washer 12.
In the utility model embodiment, in the cavity wall of the bearing accommodating cavity 131, with 12 peripheral surface engaging portion of damping washer
Cavity wall in the tubaeform of radial dilatation from left to right.
In the utility model embodiment, the peripheral surface left part of the rotor bearing 11 and the cavity wall of bearing accommodating cavity 131 it
Between there are the gaps of 0.02~0.1mm.
The operation principle of the utility model embodiment is as follows：
When assembly, first rotor bearing 11 is mounted on rotor 10, then houses the merging bearing of rotor bearing 11
Chamber 131, at this time since damping washer 12 is not yet packed into, rotor bearing 11 is easy for be installed in place, then again by cushion blocking
Circle 12 is nested with the right part in rotor bearing 11, then cover board 14 is compressed to the right side of damping washer 12 again, and blending bolt will be covered
Plate 14 is fixed, and cover board 14 oppresses damping washer 12 to the left at this time, under the cooperation in the tubaeform cavity wall portion of bearing accommodating cavity 131,
The peripheral surface of the cavity wall and rotor bearing 11 that make damping washer 12 and bearing accommodating cavity 131 compresses respectively, and generates certain machine
Tool intensity, to support the operating of rotor bearing 11.
When motor is run under a normal load, since rotor bearing 11 is supported by damping washer 12, with rigidity
Bearing chamber 13 is not in direct contact, so generated vibration and noise are just not easy to be transmitted to motor when the operating of rotor bearing 11
Outside greatly reduces vibration when motor operating and noise；Simultaneously as damping washer 12 is installed in rotor bearing 11
It is placed in bearing accommodating cavity 131 again behind position and is compressed by cover board, damping washer 12 will not be deformed when mounted, raising
The assembling quality of rotor bearing；
For the width in the gap between the stator and rotor of motor usually in 0.1mm or more, the peripheral surface of rotor bearing 11 is left
There are the gaps of 0.02~0.1mm to run well to avoid rotor bearing 11 between portion and the cavity wall of bearing accommodating cavity 131
When contacted with the cavity wall of bearing accommodating cavity 131, the chamber of bearing accommodating cavity 131 can also be utilized when damping washer 12 deforms excessive
Wall limits the radial-play of rotor bearing 11, and then rotor is avoided mutually to rub；The width in the gap will hold when being less than 0.02mm
It is easier that rotor bearing 11 is contacted with the cavity wall of bearing accommodating cavity 131, it is outer to which noise caused by rotor bearing to be transmitted to
Portion so that generate larger noise and vibration；When the width in the gap is more than 0.1mm, if the intensity of damping washer 12 is in motor
It is deformed when loading big because being insufficiently resistant to external force, rotor axle center will be caused to be biased to one end when deforming excessive, from
And the vibration noise of bigger is generated, it even results in rotor and mutually rubs.
Claims (3)
1. a kind of electric motor end cap bearing vibration-proof structure, including bearing chamber, bearing accommodating cavity is offered on the bearing chamber, bearing holds
It sets intracavitary and is equipped with rotor bearing, it is characterised in that：
The right part of the rotor bearing is coaxially equipped with the damping washer of annular, and the cavity wall of rotor bearing and bearing accommodating cavity
With damping washer tight fit, the right hand edge of damping washer bend inwards after tight against firmly rotor bearing right side, on bearing chamber
It is fixed with annular cover plate, which coaxially lays with damping washer, and tightly suppresses the right side of damping washer；
There are gaps between the peripheral surface left part and the cavity wall of bearing accommodating cavity of the rotor bearing.
2. electric motor end cap bearing vibration-proof structure according to claim 1, it is characterised in that：The cavity wall of the bearing accommodating cavity
In, the cavity wall with damping washer peripheral surface engaging portion is in the tubaeform of radial dilatation from left to right.
3. electric motor end cap bearing vibration-proof structure according to claim 1, it is characterised in that：The peripheral surface of the rotor bearing
There are the gaps of 0.02~0.1mm between left part and the cavity wall of bearing accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820202239.0U CN207868911U (en) | 2018-02-06 | 2018-02-06 | Electric motor end cap bearing vibration-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820202239.0U CN207868911U (en) | 2018-02-06 | 2018-02-06 | Electric motor end cap bearing vibration-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207868911U true CN207868911U (en) | 2018-09-14 |
Family
ID=63457401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820202239.0U Withdrawn - After Issue CN207868911U (en) | 2018-02-06 | 2018-02-06 | Electric motor end cap bearing vibration-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207868911U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110936A (en) * | 2018-02-06 | 2018-06-01 | 上海川也电机有限公司 | Electric motor end cap bearing vibration-proof structure |
| CN109660036A (en) * | 2019-01-01 | 2019-04-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of low vibration vertical machine |
| CN110762127A (en) * | 2019-10-24 | 2020-02-07 | 上海裕达实业有限公司 | Bearing support vibration reduction structure suitable for molecular pump |
-
2018
- 2018-02-06 CN CN201820202239.0U patent/CN207868911U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110936A (en) * | 2018-02-06 | 2018-06-01 | 上海川也电机有限公司 | Electric motor end cap bearing vibration-proof structure |
| CN108110936B (en) * | 2018-02-06 | 2020-03-10 | 上海川也电机有限公司 | Motor end cover bearing vibration reduction structure |
| CN109660036A (en) * | 2019-01-01 | 2019-04-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of low vibration vertical machine |
| CN110762127A (en) * | 2019-10-24 | 2020-02-07 | 上海裕达实业有限公司 | Bearing support vibration reduction structure suitable for molecular pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207868911U (en) | Electric motor end cap bearing vibration-proof structure | |
| US8461735B2 (en) | Magnetically levitated and controlled body of revolution | |
| CN202260882U (en) | Motor installation structure with vibration reduction function | |
| WO2017119059A1 (en) | Rotating electrical machine | |
| EP2907435B1 (en) | A vacuum cleaner having a motor denoising structure | |
| WO2010076070A3 (en) | Anti-interference system for an electric machine | |
| CN110182673A (en) | A kind of Novel traction machine | |
| CN106300709B (en) | A kind of production technology for the stepper motor that can reduce electromagnetic noise | |
| CN202798352U (en) | Mounting structure for brake and encoder of motor | |
| CN106044493A (en) | Front-encoder type traction machine | |
| CN201717700U (en) | Washer component | |
| CN108110936A (en) | Electric motor end cap bearing vibration-proof structure | |
| EP2907438A1 (en) | A motor denoising structure applied to vacuum cleaners | |
| KR20090097382A (en) | Flat type vibration motor | |
| US11525203B2 (en) | Decelerating clutch of a washing machine, and washing machine | |
| EP2159904A3 (en) | Rotary electric machine | |
| NZ740769A (en) | Servo motor | |
| JP2017160847A (en) | Motor fan | |
| CN205536472U (en) | Micro -machine vibration isolation system | |
| CN208623445U (en) | A kind of machine shaft support construction | |
| CN208158315U (en) | Reduce the AC generator for vehicle of electromagnetic noise | |
| CN103427535A (en) | Vibration reduction structure applicable to bearing room | |
| CN209091019U (en) | A kind of soy bean milk making machine | |
| JP2014103827A (en) | Brushless motor and washing machine mounted therewith | |
| CN209586684U (en) | A kind of shock-reducing and noise-reducing structure of electric scroll compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180914 Effective date of abandoning: 20200310 |
|
| AV01 | Patent right actively abandoned |