CN109560655A - A kind of motor bearing lubricating structure - Google Patents
A kind of motor bearing lubricating structure Download PDFInfo
- Publication number
- CN109560655A CN109560655A CN201710888358.6A CN201710888358A CN109560655A CN 109560655 A CN109560655 A CN 109560655A CN 201710888358 A CN201710888358 A CN 201710888358A CN 109560655 A CN109560655 A CN 109560655A
- Authority
- CN
- China
- Prior art keywords
- motor
- bearing
- rotor
- end cap
- connect
- 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.)
- Pending
Links
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a kind of motor bearing lubricating structures, the motor includes stator, rotor, end cap, motor casing, motor shaft, bearing, the stator is connect with the motor casing, the end cap is connect with the motor casing, the rotor and the motor axis connection, the motor shaft is connect with the end cap by the bearing, the end cap and the motor casing form a confined space, a certain amount of lubricant medium of injection in the confined space, the lubrication of the bearing and the lubrication and cooling of cooling and motor shaft rotating seal are realized by the lubricant medium, not only extend the service life of the bearing and motor shaft rotating seal, it can also balanced motor interior temperature distribution, improve motor performance.
Description
Technical field
The present invention relates to electric machine structures, and in particular to the lubrication system of motor bearings.
Background technique
It being connected between rotor and end cap by bearing, bearing is a kind of important spare part in contemporary mechanical equipment, it
Major function be to support mechanical rotary body, reduce the coefficient of friction in its motion process, and guarantee its rotating accuracy, however axis
Abrasion, damage can be caused during prolonged high speed operation by reasons such as friction, burn into bad seals by holding, and cause to turn round
Precision reduces, serious to result even in electrical fault, initiation accident so as to cause the reduction of motor overall performance, and with
The operating of motor will lead to the abrasion of motor shaft rotating seal, high temperature leads to rubber parts aging, will cause inside motor
Leakproofness reduces, so as to cause a series of because of the problem of leakage causes.
Summary of the invention
For solving the above problems, the present invention proposes that a kind of motor bearing lubricating structure, the motor include stator, turn
Son, end cap, motor casing, motor shaft, bearing, the stator are connect with the motor casing, and the end cap is connect with the motor casing,
The rotor and the motor axis connection, the motor shaft are connect with the end cap by the bearing, which is characterized in that described
End cap and the motor casing form a confined space, and a certain amount of lubricant medium of injection, there is the profit in the confined space
The lubrication and cooling of bearing described in sliding media implementation, not only extend the service life of the bearing, additionally it is possible to inside balanced motor
Temperature Distribution improves motor performance.
To achieve the above object, the technical scheme is that
A kind of motor bearing lubricating structure, the motor include stator, rotor, end cap, motor casing, motor shaft, bearing, institute
It states stator to connect with the motor casing, the end cap is connect with the motor casing, the rotor and the motor axis connection, described
Motor shaft is connect with the end cap by the bearing, and the end cap and the motor casing form a confined space, described close
It closes and injects a certain amount of lubricant medium in space, the lubricant medium can be the fluid lubricants such as lubricating oil.
The rotor portion immerses in the lubricant medium, and the rotor immerses the depth of the lubricant medium and described turn
The range of sub- diameter ratio be 1/10~2/5, it is preferred that the rotor immerse the lubricant medium depth and the rotor it is straight
The range of the ratio between diameter is 1/7~1/3, stirs lubricant medium to form oil droplet or mist of oil in rotor rotation, to bearing and motor
Axis is lubricated and is cooled down with rotating seal.
And it stirs the lubricant medium to form oil droplet or mist of oil in rotor rotation, be followed by the flowing of oil liquid
Ring carries out motor internal temperature balanced.
The motor can be water-cooled machine or ventilated machine or machine with natural cooling, and setting is corresponding on the motor casing
Radiation water channel or heat dissipation wind channel.
Compared to existing motor bearings structure, the present invention has remarkable advantage and beneficial effect, embodies are as follows:
1. using motor bearing lubricating structure of the present invention, a certain amount of lubricating oil is injected inside motor casing, has lubricated axis
It holds, extends the service life of bearing.
2. use motor bearing lubricating structure of the present invention, control injection oil mass number, guarantee rotor part immersion
In lubricating oil, each position inside lubricating oil to motor, efficient balance motor internal temperature are driven in motor operation course.
Detailed description of the invention
Fig. 1 is the schematic diagram of motor bearing lubricating structure of the present invention.
Wherein, 1 be stator, 2 be rotor, 3 be motor shaft, 4 be motor casing, 5 be drive end bearing bracket, 6 be rear end cap, 7 be bearing,
8 it is motor shaft rotating seal, 9 is heat dissipation channel.
Specific embodiment
Specific implementation method of the invention is as follows:
Existing motor bearings is vulnerable part, especially in new-energy automobile, since motor is the master of new-energy automobile
Want driving mechanism, operating time, working strength etc. be all it is very big, with prolonged high speed, high loaded process, motor shaft
It holds grease to be lost seriously, bearing life is greatly reduced, and causes motor performance to reduce, and since the abrasion of bearing can also cause electricity
Leakproofness inside machine reduces, and needs the electric machine structure in motor casing storage inside liquid especially for oil-cooled motor etc., with
The abrasion of motor shaft rotating seal, will lead to leakage, it is serious to result even in electrical fault, to influence entirety
Safety.
The embodiment of motor bearing lubricating structure of the present invention is illustrated with reference to the accompanying drawing:
Fig. 1 be motor bearing lubricating structure of the present invention, the motor include stator 1, rotor 2, motor shaft 3, motor casing 4,
Drive end bearing bracket 5, rear end cap 6, bearing 7, motor shaft rotating seal 8, the stator 1 are connect with the motor casing 4, the front end
Lid 5, rear end cap 6 are connect with the motor casing 4, and the rotor 2 is connect with the motor shaft 3, the motor shaft 3 and the front end
Lid 5, rear end cap 6 by the bearing 7 connect, the motor shaft with rotating seal 8 respectively with the drive end bearing bracket 5, rear end cap 6
And the motor shaft 3 connects, the drive end bearing bracket 5, rear end cap 6 and the motor casing 4 and the motor shaft rotatory sealing
Part 8 forms a confined space, and a certain amount of lubricant medium of injection in the confined space, the lubricant medium can be lubrication
The fluid lubricants such as oil.
2 part of rotor is immersed in the lubricant medium, and the rotor 2 immerses depth h and the institute of the lubricant medium
The range for stating the diameter ratio of rotor 2 is 1/10~2/5, it is preferable that the rotor 2 immerse the depth h of the lubricant medium with
The range of 2 diameter ratio of rotor is 1/7~1/3, stirs lubricant medium to form oil droplet or oil in the rotor 2 rotation
Mist is lubricated the bearing 7 and motor shaft with rotating seal, and by the flow circuit of oil liquid, inside motor
Temperature carries out balanced, effectively extends the service life of the bearing 7, and circulating by the lubricant medium, can be with
Temperature inside motor described in efficient balance facilitates motor radiating and improves motor performance, and passes through the lubricant medium
Flowing taken away the heat of the motor shaft rotating seal 8, it is too fast to avoid the motor shaft rotating seal 8
Aging extends the service life of the motor shaft rotating seal 8.
The motor can be water-cooled machine or ventilated machine or machine with natural cooling, and setting is corresponding on the motor casing
Radiation water channel or heat dissipation wind channel, the present embodiment by taking water-cooled stator motor as an example, on the motor casing 4 be arranged radiation water channel 9, with
Realize the heat dissipation of the motor stator 1, and by the lubricant medium can by the rotor 2, motor shaft 3 etc. other
The heat transfer at position is to the motor stator 1 to realize heat spreading function.
For for exemplary embodiment of the invention, it should be understood that be in the protection scope of claims of the present invention
A certain kind demonstrative example therein has the guiding effect that those skilled in the art are realized with corresponding technical solution, and
Non- limitation of the invention.
Claims (6)
1. a kind of motor bearing lubricating structure, the motor includes stator, rotor, end cap, motor casing, motor shaft, bearing, described
Stator is connect with the motor casing, and the end cap is connect with the motor casing, the rotor and the motor axis connection, the electricity
Arbor is connect with the end cap by the bearing, which is characterized in that the end cap and the motor casing form a confined air
Between, a certain amount of lubricant medium of injection in the confined space.
2. motor bearing lubricating structure according to claim 1, which is characterized in that the lubricant medium is lubricating oil.
3. motor bearing lubricating structure according to claim 1, which is characterized in that the rotor portion immerses the lubrication
In medium.
4. motor bearing lubricating structure according to claim 3, which is characterized in that the rotor immerses the lubricant medium
Depth and the ratio between the root diameter range be 1/10~2/5.
5. motor bearing lubricating structure according to claim 3, which is characterized in that the rotor immerses the lubricant medium
Depth and the ratio between the root diameter range be 1/7~1/3.
6. motor bearing lubricating structure according to claim 1, which is characterized in that the motor be water cooling it is air-cooled or from
So cooling stator motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888358.6A CN109560655A (en) | 2017-09-27 | 2017-09-27 | A kind of motor bearing lubricating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710888358.6A CN109560655A (en) | 2017-09-27 | 2017-09-27 | A kind of motor bearing lubricating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109560655A true CN109560655A (en) | 2019-04-02 |
Family
ID=65863914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710888358.6A Pending CN109560655A (en) | 2017-09-27 | 2017-09-27 | A kind of motor bearing lubricating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109560655A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994866A (en) * | 2019-12-03 | 2020-04-10 | 浙江华船海工科技有限公司 | Closed underwater motor |
| CN114598089A (en) * | 2020-12-07 | 2022-06-07 | 中国科学院沈阳科学仪器股份有限公司 | Motor lubricating and cooling structure for vacuum pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006342721A (en) * | 2005-06-09 | 2006-12-21 | Ulvac Japan Ltd | Cooling structure of canned motor |
| US20120049666A1 (en) * | 2010-08-25 | 2012-03-01 | Rudolph Garriga | Systems and methods for providing fluid for internal cooling and lubrication of electric machines |
| CN103683673A (en) * | 2013-11-13 | 2014-03-26 | 华南理工大学 | Direct spray-type motor cooling system |
| CN203871994U (en) * | 2014-06-11 | 2014-10-08 | 章胜 | Motor cooling system |
| CN204013088U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | One is used medium cooling motor under water |
| CN204391950U (en) * | 2014-12-30 | 2015-06-10 | 宁波菲仕运动控制技术有限公司 | A kind of servomotor of oil immersed type cooling |
-
2017
- 2017-09-27 CN CN201710888358.6A patent/CN109560655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006342721A (en) * | 2005-06-09 | 2006-12-21 | Ulvac Japan Ltd | Cooling structure of canned motor |
| US20120049666A1 (en) * | 2010-08-25 | 2012-03-01 | Rudolph Garriga | Systems and methods for providing fluid for internal cooling and lubrication of electric machines |
| CN103683673A (en) * | 2013-11-13 | 2014-03-26 | 华南理工大学 | Direct spray-type motor cooling system |
| CN203871994U (en) * | 2014-06-11 | 2014-10-08 | 章胜 | Motor cooling system |
| CN204013088U (en) * | 2014-07-08 | 2014-12-10 | 东方电气集团东方电机有限公司 | One is used medium cooling motor under water |
| CN204391950U (en) * | 2014-12-30 | 2015-06-10 | 宁波菲仕运动控制技术有限公司 | A kind of servomotor of oil immersed type cooling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110994866A (en) * | 2019-12-03 | 2020-04-10 | 浙江华船海工科技有限公司 | Closed underwater motor |
| CN114598089A (en) * | 2020-12-07 | 2022-06-07 | 中国科学院沈阳科学仪器股份有限公司 | Motor lubricating and cooling structure for vacuum pump |
| CN114598089B (en) * | 2020-12-07 | 2024-01-30 | 中国科学院沈阳科学仪器股份有限公司 | Motor lubrication cooling structure for vacuum pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102725546B (en) | Electrical machine having a roller bearing, which is protected against electrical breakdowns, and a geared motor having such a roller bearing | |
| US9762106B2 (en) | Motor cooling system | |
| CN201994738U (en) | Enclosed self-cooling motor | |
| EP3028888B1 (en) | Motor cooling system | |
| US7352090B2 (en) | Fluid-submerged electric motor | |
| CN109560655A (en) | A kind of motor bearing lubricating structure | |
| US20170085151A1 (en) | Electric machine with improved bearing lubrication | |
| US11585352B2 (en) | Seal structure of drive device | |
| CN201679757U (en) | Bearing lubrication cooling structure for two-end support pump | |
| CN104295518A (en) | Magnetic levitation overspeed test bed for impeller overspeed test | |
| CN202646128U (en) | Circular lubricating and heat-radiating bearing oil tank for pump | |
| CN202199607U (en) | Immersed wire drawing bench | |
| CN203906300U (en) | Self-cooling double-oil tank roots blower | |
| CN202840781U (en) | Bearing lubricating structure for drive motor | |
| CN102284531B (en) | Immersed drawing machine | |
| CN202444364U (en) | Oil seal structure of bearing of anti-explosion variable-frequency motor | |
| CN211343463U (en) | Bearing box device of cantilever type fan bearing forced air cooling | |
| CN103672347A (en) | Lubrication structure of sliding bearing | |
| CN102734204A (en) | Circulating lubricating cooling bearing oil tank for pumps | |
| CN105275861A (en) | Thrust bearing mechanism of submersible motor | |
| CN107359746B (en) | Oil-cooled motor for compressor | |
| CN207426877U (en) | A kind of motor with radiator structure | |
| CN109119856B (en) | A kind of ultrahigh speed conducting slip ring electrical feedthrough and preparation method based on circulation oil-cooling technology | |
| SU1130958A1 (en) | Submersible motor | |
| CN217130300U (en) | Speed reducer for feeding biomass boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190402 |