CN107795835A - High-speed electric expreess locomotive oil lubrication structure - Google Patents
High-speed electric expreess locomotive oil lubrication structure Download PDFInfo
- Publication number
- CN107795835A CN107795835A CN201711175920.7A CN201711175920A CN107795835A CN 107795835 A CN107795835 A CN 107795835A CN 201711175920 A CN201711175920 A CN 201711175920A CN 107795835 A CN107795835 A CN 107795835A
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- Prior art keywords
- oil
- bearing
- clutch shaft
- speed electric
- casing
- 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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Links
- 238000005461 lubrication Methods 0.000 title claims abstract description 33
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 25
- 239000003921 oil Substances 0.000 claims description 88
- 239000010687 lubricating oil Substances 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/14—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means
- F16N7/26—Splash lubrication
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/14—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/18—Electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention proposes a kind of high-speed electric expreess locomotive oil lubrication structure, axle including casing and in the casing, the clutch shaft bearing installed in the axle both ends and second bearing and the first end cap being arranged on the outside of the clutch shaft bearing and the second end cap being arranged on the outside of the second bearing, second end cap is provided with oil inlet, the oil inlet connects with the second bearing, there is an oil supply gallery in the axle, the oil supply gallery has opposite first end and the second end, the first end is communicated to the clutch shaft bearing, and second end connects with the oil inlet.
Description
Technical field
The present invention relates to oil lubrication field, more particularly to a kind of high-speed electric expreess locomotive oil lubrication structure.
Background technology
At present, there is 30%~60% energy resource consumption in the frictional force overcome in energy transfer process, 80% machine
Damage of components is caused by abrasion, and in the equipment breakdown of generation, 70% is accounted for caused by insufficient lubrication, therefore,
Correctly, rational lubricating system is particularly important, especially for motor.The general rotating speed of high-speed electric expreess locomotive is up to 20000-
100000rpm, rotation is uneven, and load variations are big, and high-speed electric expreess locomotive typically uses steel ball or sliding bearing, and feed lubrication is must not
The condition that can lack.The multiple fuel feeding mouth structures of prior art generally use, cause complicated.Moreover, high-speed electric expreess locomotive operation produces
Amount of heat, how cooling and a major challenge are carried out to motor internal.Have in the prior art using extra cooling structure
Way, but this way adds design, manufacture and material cost.
The content of the invention
In view of this, the present invention proposes a kind of high-speed electric expreess locomotive oil lubrication structure, and which simplify bearing lubrication structure, moreover it is possible to rises
To the effect of cooling motor.
The present invention proposes a kind of high-speed electric expreess locomotive oil lubrication structure, including casing and rotating shaft in the casing, peace
Mounted in the clutch shaft bearing and second bearing at the rotating shaft both ends and the first end cap for being arranged on the outside of the clutch shaft bearing and set
The second end cap being placed on the outside of the second bearing, second end cap are provided with oil inlet, the oil inlet and described second
Bearing connects, and has an oil supply gallery in the rotating shaft, and the oil supply gallery has an opposite first end and the second end, and described the
One end is communicated to the clutch shaft bearing, and second end connects with the oil inlet so that the lubricating oil injected by oil inlet
The clutch shaft bearing can be reached by the oil supply gallery to be lubricated to the clutch shaft bearing.
In one embodiment, the oil lubrication structure includes a disc, and the disc is arranged on the clutch shaft bearing
Between first end cap, the disc connects with the first end of the clutch shaft bearing and the oil supply gallery to incite somebody to action respectively
The first end of lubricating oil from the oil supply gallery is guided to the clutch shaft bearing and is lubricated.
In one embodiment, the disc has interconnected the first cavity and the second cavity, first cavity
Connected with the first end of the oil supply gallery, second cavity connects with the clutch shaft bearing；The rotating shaft is in the fuel feeding
The position that the first end of passage corresponds to first cavity is provided with an at least radial hole, one end of the radial hole and the fuel feeding
Passage connects, and the other end connects with first cavity.
In one embodiment, first end cap is set in the rotating shaft, and the second bearing is located at the rotating shaft
End, the second end of the oil supply gallery is openend, and one is formed between second end cap and the second bearing and rotating shaft
Cavity, the cavity connect with the oil inlet, the second end of the oil supply gallery and the second bearing respectively.
In one embodiment, the casing both ends are separately installed with the first fixture for supporting the clutch shaft bearing and support
Second fixture of the second bearing, first end cap are fixedly installed to first fixture, and second end cap is consolidated
Dingan County is filled to second fixture, and the casing, the first fixture, the second fixture, the first end cap and the second end cap are common
Form a sealing space.
In one embodiment, the casing is provided with the first oil-out, and the lubricating oil in the high-speed electric expreess locomotive is discharged,
First oil-out is located at one end that the casing corresponds to the clutch shaft bearing.
In one embodiment, one first oil discharge passage is formed between the clutch shaft bearing and first oil-out, so that
The lubricating oil that the clutch shaft bearing is lubricated must be discharged through first oil discharge passage into first oil-out, it is described
One second oil discharge passage is formed between second bearing and first oil-out, at least partly to enter the second bearing
The lubricating oil of row lubrication is discharged through second oil discharge passage into first oil-out.
In one embodiment, second oil discharge passage includes the second oil-out and interface channel, second oil-out
Connected with the casing internal space and be formed at one end of the corresponding second bearing of the casing, the interface channel is formed
In in the wall portion of the casing and connecting second oil-out to first oil-out.
In one embodiment, second oil-out runs through the wall portion of the casing, and second oil-out is located at institute
State one end on the outside of enclosure wall to be enclosed so that the lubricating oil for entering second oil-out can only be via the interface channel stream
To first oil-out.
In one embodiment, second end cap and second fixture are provided with stomata, for the sealing space
Interior injection air.
In summary, the invention provides a kind of high-speed electric expreess locomotive oil lubrication structure, high-speed electric expreess locomotive bearing lubrication knot is simplified
Structure, hollow-core construction is done in rotor, oil, fuel feeding can be led to, lubricating oil is supplied from one end, front and back bearings can be lubricated, oil is by rotor
The heart can absorb heat again, also play a part of to cool down motor, and hollow-core construction reduces the rotary inertia of rotor, improves motor
Stability.
Brief description of the drawings
Fig. 1 is dynamo oil lubrication system schematic diagram.
Embodiment
Before describing the embodiments in more detail, it should be understood that the invention is not restricted to institute hereafter or in accompanying drawing in the application
The detailed construction or arrangement of elements of description.The present invention can be the embodiment that other manner is realized.Furthermore, it is to be understood that this paper institutes
The wording and term used is solely for describing purposes, should not the explanation of being construed as limiting property." comprising " used herein, "comprising",
The similar wording such as " having " is meant comprising items listed thereafter, its equivalent and other additional things.Particularly, description is worked as
When " certain element ", the quantity that the present invention does not limit the element can also include multiple as one.
Fixed as shown in figure 1, high-speed electric expreess locomotive oil lubrication structure includes casing 11, the first end cap 13, the second end cap 14, first
The fixture 16 of part 15 and second.First fixture 15 and the second fixture 16 are separately fixed at the both ends of casing 11, the first end cap 13
It is fixed on the outer face of the first fixture 15, the second end cap 14 is fixed on the outer face of the second fixture 16, so that casing 11,
First end cap 13, the second end cap 14, the first fixture 15 and the second fixture 16 are collectively forming a sealing space.Motor turns
Son and stator may be contained within the confined space.
Stator includes the stator winding 18 for being fixed on the inwall of housing 11.Rotor includes rotating shaft 30 and is fixed in rotating shaft 30
Permanent magnet 17, in this way, permanent magnet 17 rotates together with rotating shaft 30.Wherein, permanent magnet 17 and the face of stator winding 18, between the two
An air gap is formed, to allow both to rotate against.
The both ends of rotating shaft 30 are rotatably supported by clutch shaft bearing 21 and second bearing 22 respectively.Clutch shaft bearing 21 is consolidated by first
Determine part 15 to position, and it is corresponding in the axial direction with the first end cap 13.Second bearing 22 by the correspondence of the second fixture 16, and with the second end
Lid 14 corresponds in the axial direction.In the present embodiment, clutch shaft bearing 21 and second bearing 22 are ball bearing, and this is only used as this implementation
The preferred embodiment of example, in other embodiments, clutch shaft bearing 21 and second bearing 22 can also be other kinds of bearings,
Such as sliding bearing, the present invention are not construed as limiting to the particular type of bearing, as long as can the stable rotational support of the offer of countershaft 30
.
In the present embodiment, rotating shaft 30 is hollow shaft, has oil supply gallery 31 in it, and oil supply gallery 31 has opposite the
The end 312 of one end 311 and second, axis hole 32 is provided with first end 311, first end 311 is connected by axis hole 32 and clutch shaft bearing 21
Logical, the second end 312 is openend, a cavity 25 is formed between the second end cap 14 and second bearing 22 and rotating shaft 30, at the second end
Oil inlet 27 is provided with lid 14, oil inlet 27 is connected by cavity 25 with the end 312 of second bearing 22 and second, so that lubrication
Oil first lubricates second bearing 22 by the direct-injection of oil inlet 27 into cavity 25, and lubricating oil enters the second end 312 by cavity 25 simultaneously,
First end 311 is reached by the oil supply gallery 31 in rotating shaft 30, clutch shaft bearing is entered by axis hole 32 so as to lubricate clutch shaft bearing
21, and when lubricating oil passes through oil supply gallery 31, moreover it is possible to the heat in rotor is taken away, plays the effect of cooling.In addition,
Set hollow shaft to reduce the rotary inertia of rotating shaft, improve rotational stability.
More specifically, oil lubrication structure includes disc 33, and it is arranged between the end cap 13 of clutch shaft bearing 21 and first, should
Disc 33 has interconnected the first cavity 331 and the second cavity 332, and axis hole 32 is arranged on first end 311 corresponding first
The position of cavity 331, the axial wall that radially extends insertion rotating shaft 30 of the axis hole 32 along rotating shaft 30, the first cavity 331 pass through axis hole 32
Connected with the first end 311 of oil supply gallery 31, the second cavity 332 connects with clutch shaft bearing 21, in motor operation, due to rotating shaft
30 rotate at a high speed, and lubricating oil therein throws away the first cavity 331 of disc 33, due to the first cavity 331 and the second cavity
332 connections, lubricating oil is transported to the second cavity 332, and then lubricates clutch shaft bearing 21.
In the present embodiment, casing 11 is provided with the first oil-out 41 for removal of lubricant, the first oil-out 41
In one end on casing 11 close to clutch shaft bearing 21, and connected with the sealing space in casing 11.More specifically, the first oil-out
41 are arranged on the bottom side of casing 11, so that under gravity by the row of the first oil-out 41 after oil lubrication clutch shaft bearing 21
Go out, and take away heat.
One first oil discharge passage 45 is formed between the oil-out 41 of clutch shaft bearing 31 and first, to cause on clutch shaft bearing 21
Lubricating oil is discharged through the first oil discharge passage 45 into the first oil-out 41.It is solid that a part for first oil discharge passage 45 is arranged on first
Determine in part 15, be i.e. one or more flow path portions 49 as the part of the first oil discharge passage 45 are provided with the first fixture 15.
One second oil discharge passage 46 is formed between the oil-out 41 of second bearing 22 and first, can make at least partly to carry out second bearing 22
The lubricating oil of lubrication is discharged through the second oil discharge passage 46 into the first oil-out 41.
In the present embodiment, the second oil discharge passage 46 includes the second oil-out 42 and interface channel 48.Second oil-out 42
Positioned at the bottom side of casing 11 close to one end of second bearing 22, connected with the confined space in casing 11.Interface channel 48 is formed at
In the wall portion of casing 11 and the second oil-out 42 is connected to first oil-out 41.A part for second oil discharge passage 46 can also be set
Put in the second fixture 16, be i.e. one or more of the part as the second oil discharge passage 46 is provided with the second fixture 16
Individual flow path portion 47.Lubricating oil can be discharged after lubricating clutch shaft bearing 21 through the first oil discharge passage 45 into the first oil-out 41.Profit
After lubricating oil is lubricated second bearing 22, it can be discharged through the second oil-out 42 and interface channel 48 into the first oil-out 41.
In the embodiment shown, the second oil-out 42 extends radially through the wall portion of casing 11, and interface channel 48 exists vertically
Extend in the wall portion of casing 11 and connect the oil-out 41 of the second oil-out 42 to the first.When in use, can be by the second oil-out 42
One end 43 on the outside of the wall portion of casing 11 seal (such as being sealed using plug) so that into the lubrication of the second oil-out 42
Oil can only flow to the first oil-out 41 through interface channel 48, be discharged from the first oil-out 41.During motor operation, the meeting of stator coil 18
A large amount of heat transfer are produced to casing 11, lubricating oil can also take away the heat of casing 11 in the internal flow of casing 11, so as to
Stator coil 18 is radiated.
In other embodiments, one end 43 on the outside of the wall portion of casing 11 of the second oil-out 42 can not also be sealed.
In this way, into the second oil-out 42 lubricating oil can diameter discharged through the second oil-out 42, without flowing to the first oil-out
42 or only partly it flow to the first oil-out 42.But the advantages of sealing this second oil-out 42 is, after sealing just only
One oil inlet and an oil-out, lubricating oil can only pass through the two paths (oil discharge passage of oil supply gallery/first, and second
Oil discharge passage) unique oil-out is reached, the lubricating oil positioned at this one end of second bearing 22 of motor can not be immediately from outer end
The second oil-out 42 being enclosed is discharged, and the first oil-out 41 must be marched to via relatively long and narrow interface channel 48, its
On the one hand the heat of stator coil can be advantageously taken away, meanwhile, long and narrow travel path can also increase its running resistance, therefore pass through
Comparatively the amount of the lubricating oil of clutch shaft bearing 21 is reached by hollow shaft can increase (paths resistance increasing to a certain extent
Add, the resistances of another paths then can relative reduction, therefore more lubricating oil can walk that paths of resistance reduction).
In the present embodiment, stomata is additionally provided with the second end cap 14, air can enter in confined space through stomata so that close
Close space and extraneous generation air flow, the heat taken out of in confined space.
In summary, there is provided herein a kind of high-speed electric expreess locomotive oil lubrication structure, simplify structure, conveyed and lubricated by hollow shaft
Oil, it is only necessary to which an oil inlet is Castor Oil front and back bearings, moreover it is possible to motor internal temperature is cooled down, and reduces the rotary inertia of rotor,
Stability is improved, obtains higher running accuracy.
Concepts described herein may be embodied to other forms in the case of without departing from its spirit and characteristic.It is disclosed
Specific embodiment should be considered as exemplary rather than restricted.Therefore, the scope of the present invention be by appended claim,
Rather than it is determined according to these descriptions before.Any change in the letter of claim and equivalency range is all
The scope of these claims should be belonged to.
Claims (10)
1. a kind of high-speed electric expreess locomotive oil lubrication structure, including casing and rotating shaft in the casing, installed in the rotating shaft
The clutch shaft bearing and second bearing at both ends and the first end cap for being arranged on the outside of the clutch shaft bearing and it is arranged at described second
The second end cap on the outside of bearing, second end cap are provided with oil inlet, and the oil inlet connects with the second bearing, and it is special
Sign is, has an oil supply gallery in the rotating shaft, and the oil supply gallery has an opposite first end and the second end, described first
End is communicated to the clutch shaft bearing, and second end connects with the oil inlet so that the lubricating oil energy injected by oil inlet
The clutch shaft bearing is reached by the oil supply gallery to be lubricated to the clutch shaft bearing.
2. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 1, it is characterised in that the oil lubrication structure gets rid of oil including one
Disk, the disc are arranged between the clutch shaft bearing and first end cap, the disc respectively with the first axle
Hold and connected with the first end of the oil supply gallery so that first end of the lubricating oil from the oil supply gallery is guided to the first axle
Hold and be lubricated.
3. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 2, it is characterised in that the disc has what is be interconnected
First cavity and the second cavity, first cavity connect with the first end of the oil supply gallery, second cavity with it is described
Clutch shaft bearing connects；The position that the rotating shaft corresponds to first cavity in the first end of the oil supply gallery is provided with an at least footpath
Xiang Kong, one end of the radial hole connect with the oil supply gallery, and the other end connects with first cavity.
4. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 1, it is characterised in that first end cap is set in described turn
On axle, the second bearing is located at the end of the rotating shaft, and the second end of the oil supply gallery is openend, second end cap
Form a cavity between the second bearing and rotating shaft, the cavity respectively with the oil inlet, the oil supply gallery
Two ends and second bearing connection.
5. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 1, it is characterised in that the casing both ends are separately installed with branch
Support the first fixture of the clutch shaft bearing and support the second fixture of the second bearing, first end cap is fixedly mounted
To first fixture, second end cap is fixedly installed to second fixture, the casing, the first fixture, the
Two fixtures, the first end cap and the second end cap are collectively forming a sealing space.
6. the high-speed electric expreess locomotive oil lubrication structure as described in claim 1-5 any one, it is characterised in that the casing is provided with
First oil-out, the lubricating oil in the high-speed electric expreess locomotive is discharged, first oil-out is located at described in casing correspondence
One end of clutch shaft bearing.
7. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 6, it is characterised in that the clutch shaft bearing goes out with described first
One first oil discharge passage is formed between hydraulic fluid port, it is fuel-displaced through described first to the lubricating oil that the clutch shaft bearing is lubricated to cause
Passage is discharged into first oil-out, and it is fuel-displaced logical that one second is formed between the second bearing and first oil-out
Road, at least partly to enter described first through second oil discharge passage to the lubricating oil that the second bearing is lubricated
Oil-out is discharged.
8. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 7, it is characterised in that second oil discharge passage includes second
Oil-out and interface channel, second oil-out and the casing internal space connect and be formed at the casing it is corresponding described in
One end of second bearing, the interface channel are formed in the wall portion of the casing and connect second oil-out to described the
One oil-out.
9. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 8, it is characterised in that second oil-out runs through the machine
The wall portion of shell, one end on the outside of the enclosure wall of second oil-out are enclosed so that it is fuel-displaced to enter described second
The lubricating oil of mouth can only flow to first oil-out via the interface channel.
10. high-speed electric expreess locomotive oil lubrication structure as claimed in claim 5, it is characterised in that second end cap and described second
Fixture is provided with stomata, for injecting air into the sealing space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175920.7A CN107795835A (en) | 2017-11-22 | 2017-11-22 | High-speed electric expreess locomotive oil lubrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711175920.7A CN107795835A (en) | 2017-11-22 | 2017-11-22 | High-speed electric expreess locomotive oil lubrication structure |
Publications (1)
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|---|---|
| CN107795835A true CN107795835A (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711175920.7A Withdrawn CN107795835A (en) | 2017-11-22 | 2017-11-22 | High-speed electric expreess locomotive oil lubrication structure |
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| CN (1) | CN107795835A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100260A1 (en) * | 2017-11-22 | 2019-05-31 | 贵州智慧能源科技有限公司 | High-speed motor oil lubrication structure |
| CN112564420A (en) * | 2020-11-27 | 2021-03-26 | 中国科学院合肥物质科学研究院 | Large-load high-speed motor bearing cooling device |
| CN112983761A (en) * | 2021-03-31 | 2021-06-18 | 东方电气集团东方电机有限公司 | Sliding bearing lubricating system and sliding bearing |
| 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 |
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| CN2273469Y (en) * | 1996-09-09 | 1998-01-28 | 谢国平 | High-speed motor |
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| CN105871101A (en) * | 2016-05-23 | 2016-08-17 | 杭州万辰机电科技有限公司 | High-speed permanent magnet motor |
| CN107270083A (en) * | 2017-07-03 | 2017-10-20 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor shaft bearings lubrication system, motor and control method |
| CN207421735U (en) * | 2017-11-22 | 2018-05-29 | 贵州智慧能源科技有限公司 | High-speed electric expreess locomotive oil lubrication structure |
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| CN112564420A (en) * | 2020-11-27 | 2021-03-26 | 中国科学院合肥物质科学研究院 | Large-load high-speed motor bearing cooling device |
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