CN106451893A - Novel bearing chamber structure of motor - Google Patents
Novel bearing chamber structure of motor Download PDFInfo
- Publication number
- CN106451893A CN106451893A CN201611095075.8A CN201611095075A CN106451893A CN 106451893 A CN106451893 A CN 106451893A CN 201611095075 A CN201611095075 A CN 201611095075A CN 106451893 A CN106451893 A CN 106451893A
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- CN
- China
- Prior art keywords
- oil
- bearing
- outer bearing
- bearing cover
- cover
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- 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
-
- 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
Abstract
The invention relates to a bearing chamber structure of a motor, particularly relates to a novel bearing chamber structure of the motor and aims to solve problems of poor airtightness, difficulty in waste grease discharge and inconvenience in maintenance of an existing motor bearing chamber structure. The scheme includes that an outer bearing cover is provided with an oil injection hole, an end cover is provided with a lubrication passage, and the end cover radially extends towards one side of the outer bearing cover to extend out of an oil retainer. An oil storage cavity is formed between the oil retainer and a bearing, and an oil flinger is arranged on one side, facing the outer bearing cover, of the oil retainer. An oil flinging gap is reserved between the oil flinger and the oil retainer, and a waste oil discharge chamber is formed between the oil flinger and the outer bearing cover. An oil collector communicated with the waste oil discharge chamber is arranged on the lower portion of the outer bearing cover. The novel chamber structure of the motor has advantages that firstly, quick loss of lubricating grease in the bearing is prevented, and complete lubrication of the bearing is guaranteed; secondly, smoothness and timeliness in discharge of waste grease and excessive lubricating grease are realized; thirdly, excellent sealing effects are achieved, so that the lubricating grease is protected from pollution; fourthly, the oil collector is convenient to demount, and the requirement on regular maintenance of waste grease is met.
Description
Technical field
The present invention relates to motor bearings cell structure, more particularly to double-fed wind power generator, synchronous alternating-current generator, asynchronous electricity
Motivation etc. needs to carry out the bearing chamber structure of the motor that bearing lubricates again, specially a kind of motor novel bearing cell structure.
Background technology
In the fault category of motor, bearing fault occupies very big ratio, and the reason for most bearing failures is lubrication
Bad, including Starved Lubrication, transition lubrication, grease contaminated, degras drainage difficulty etc., this kind of failure show as bearing noise,
Abrasion, adhesion, scratch, fatigue failure and overheated etc..The conventional bearing chamber structure of existing motor as shown in figure 1, outer bearing cover 7 with
Seal cavity 14 is formed between seal ring 13, and outer bearing cover 7, seal ring 13 are encircled into single lubrication cavity with bearing 1, and this kind of structure is given up
Fat drainage difficulty, while poor sealing, easily causes grease contaminated, so as to considerably increase the probability of bearing failure, and ties up
Shield is got up extremely inconvenient.Therefore, a kind of clever structure is designed, excellent sealing and degras can be drained smoothly bearing chamber structure is
Extremely it is necessary.
Content of the invention
The existing motor bearing chamber sealing structure poor performance of present invention solution, the problem of degras drainage difficulty and inconvenient maintenance,
A kind of motor novel bearing cell structure is provided.
The present invention is achieved by the following technical solutions：Motor novel bearing cell structure, including inside cap, end cap,
Outer bearing cover, have oil filler point on the outer bearing cover, is had with oil filler point insertion towards inside cap side on end cap
Lubrication channel, lubrication channel and inner bearing room are that the space between inner end cap and bearing communicates, the dead eye direction of the end cap
Outer bearing cover side is at or about the average diameter of bearing, so makes axle radially outward from oil scraper ring, the internal diameter of oil scraper ring
The grease for holding inside quickly will not be lost in, and its each part obtains sufficient lubrication；Oil storage is formed between the oil scraper ring and bearing
Chamber, the oil scraper ring is provided with the disc being fixed in rotating shaft towards outer bearing cover side, and the external diameter of disc is more than gear oil
The internal diameter of ring, the disc one side relative with oil scraper ring leaves gets rid of oil-gap, is formed useless between disc and outer bearing cover
Oily excretion device；The outer bearing cover bottom is provided with the oil catcher with waste oil excretion device insertion.Lubricant grease is by outer bearing cover
Oil filler point injects, and enters inside cap side through lubrication channel, is lubricated by bearing, and degras and unnecessary grease enter storage
Oil-in chamber.With axis of rotation, disc is rotated and produces centrifugal force, by the degras of oil storage within the chamber and unnecessary grease through getting rid of oil
The oil-gap that gets rid of between disk and oil scraper ring is got rid of into waste oil excretion device, and the indoor waste oil of waste oil excretion flows under the influence of gravity into collection
In oily device.
The shaft hole inner wall of a gap, outer bearing cover is stayed to have some annular seal grooves between the outer bearing cover and rotating shaft, close
Fat is filled up in sealing groove.The inner chamber of the outer bearing cover adopts inclined design, and the row's of making fat is more smoothly, timely.Outer bearing cover internal diameter
Annular seal groove is opened, and fat is filled up in groove, it is ensured that sealing effectiveness is good.Oil storage chamber and waste oil excretion device adopt inclined design, protect
Card row's fat is smooth in time.
The present invention is using new " duplex bearing room " integral structure, i.e. bearing chamber mainly by oil storage chamber and degras excretion device
Composition.Oil storage chamber makes the grease of Bearing inner quickly will not be lost in, and makes motor operationally, and Bearing inner retains appropriate
Grease, makes each part of bearing obtain sufficient lubrication；Degras excretion device makes that unnecessary grease is smooth, is drained to oil-collecting in time
The demand of degras periodic maintenance in device, can be met, substantially reduce the probability of bearing failure.The present invention is broken down needs in bearing
During maintenance, directly outer bearing cover is opened, you can waste oil is cleared up, disc (seal ring) need not be dismantled, significantly facilitate
Execute-in-place.Good sealing effect of the present invention, will not pollute to grease.
Description of the drawings
Fig. 1 is existing bearing chamber structure schematic diagram；
Fig. 2 is schematic structural view of the invention；
In figure：1- bearing, 2- inside cap, 3- end cap, 4- oil storage chamber, 5- lubrication channel, 6- oil scraper ring, 7- outer bearing cover,
8- waste oil excretion device, 9- disc, 10- seal groove, 11- rotating shaft, 12- oil catcher, 13- seal ring, 14- seal cavity.
Specific embodiment
Motor novel bearing cell structure, including inside cap 2, end cap 3, outer bearing cover 7, has on the outer bearing cover 7
Oil filler point, the lubrication channel 5 towards 2 side of inside cap having on end cap 3 with oil filler point insertion, lubrication channel 5 and interior axle
The space that holds between room i.e. inner end cap and bearing communicates, the dead eye of the end cap 3 towards 7 side of outer bearing cover radially outward from
Oil scraper ring 6, the internal diameter of oil scraper ring 6 is at or about the average diameter of bearing 1, so makes the grease of Bearing inner will not be fast
Speed is lost in, and its each part obtains sufficient lubrication；Oil storage chamber 4,6 court of the oil scraper ring is formed between the oil scraper ring 6 and bearing 1
The disc 9 being fixed in rotating shaft 11 is provided with to 7 side of outer bearing cover, the external diameter of disc 9 is more than the internal diameter of oil scraper ring 6, institute
State the one side relative with oil scraper ring 6 of disc 9 and leave and oil-gap is got rid of, between disc 9 and outer bearing cover 7, form waste oil excretion device
8；7 bottom of the outer bearing cover is provided with the oil catcher 12 with 8 insertion of waste oil excretion device.
When being embodied as, a gap between the outer bearing cover 7 and rotating shaft 11, is stayed, if the shaft hole inner wall of outer bearing cover 7 has
Dry annular seal groove 10, fills up fat in seal groove 10.The inner chamber of the outer bearing cover 7 adopts inclined design.
When installing and using, inside cap 2, bearing 1, end cap 3,9 and of disc is cased with rotating shaft 11 from inside to outside successively
Outer bearing cover 7.Lubricant grease being injected by the oil filler point on outer bearing cover 7,2 side of inside cap is entered through lubrication channel 5, leads to
Cross bearing 1 to be lubricated, degras and unnecessary grease enter oil storage chamber 4.As rotating shaft 11 is rotated, disc 9 is rotated and is produced
Centrifugal force, the degras in oil storage chamber 4 and unnecessary grease are got rid of into useless through the oil-gap that gets rid of between disc 9 and oil scraper ring 6
Oily excretion device 8, the waste oil in waste oil excretion device 8 is flowed under the influence of gravity in oil catcher 12, under oil catcher quick release
Come, waste oil is cleared up.
Claims (3)
1. a kind of motor novel bearing cell structure, including inside cap（2）, end cap（3）, outer bearing cover（7）, it is characterised in that：
The outer bearing cover（7）On have oil filler point, end cap（3）On have with oil filler point insertion towards inside cap（2）Side
Lubrication channel（5）, lubrication channel（5）It is that space between inner end cap and bearing communicates with inner bearing room, the end cap（3）Axle
Bearing bore is towards outer bearing cover（7）Side is radially outward from oil scraper ring（6）, oil scraper ring（6）Internal diameter be at or about bearing（1）
Average diameter, the oil scraper ring（6）With bearing（1）Between formed oil storage chamber（4）；The oil scraper ring（6）Towards outer bearing
Lid（7）Side is provided with and is fixed in rotating shaft（11）On disc（9）, disc（9）External diameter be more than oil scraper ring（6））Internal diameter,
The disc（9）With oil scraper ring（6）Relative one side leaves gets rid of oil-gap, disc（9）With outer bearing cover（7）Between formed
Waste oil excretion device（8）；The outer bearing cover（7）Bottom is provided with and waste oil excretion device（8）The oil catcher of insertion（12）.
2. motor novel bearing cell structure according to claim 1, it is characterised in that：The outer bearing cover（7）And rotating shaft
（11）Between stay a gap, outer bearing cover（7）Shaft hole inner wall have some annular seal grooves（10）, seal groove（10）Inside fill up
Fat.
3. motor novel bearing cell structure according to claim 1 and 2, it is characterised in that：Outer bearing cover（7）Inner chamber adopt
Use inclined design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095075.8A CN106451893A (en) | 2016-12-02 | 2016-12-02 | Novel bearing chamber structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611095075.8A CN106451893A (en) | 2016-12-02 | 2016-12-02 | Novel bearing chamber structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451893A true CN106451893A (en) | 2017-02-22 |
Family
ID=58223526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611095075.8A Pending CN106451893A (en) | 2016-12-02 | 2016-12-02 | Novel bearing chamber structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451893A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091325A (en) * | 2017-06-12 | 2017-08-25 | 国电联合动力技术有限公司 | A kind of generator shaft bearing sealing device |
| CN112003412A (en) * | 2020-09-01 | 2020-11-27 | 青岛中加特电气股份有限公司 | End cover structure of motor bearing |
| CN112242781A (en) * | 2020-09-22 | 2021-01-19 | 青岛中加特电气股份有限公司 | Frequency conversion all-in-one machine |
| CN112595468A (en) * | 2020-12-08 | 2021-04-02 | 中车永济电机有限公司 | Seal detection device and seal detection method |
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|---|---|---|---|---|
| SU1224909A1 (en) * | 1984-07-27 | 1986-04-15 | Харьковский политехнический институт им.В.И.Ленина | Bearing unit of electric machine |
| US20020097931A1 (en) * | 2001-01-19 | 2002-07-25 | Olympus Optical Co., Ltd. | Hydrodynamic bearing for motor |
| JP2009162272A (en) * | 2007-12-28 | 2009-07-23 | Nsk Ltd | Rolling bearing and brushless motor |
| CN201490814U (en) * | 2009-09-25 | 2010-05-26 | 永济新时速电机电器有限责任公司 | Motor with easily assembled and disassembled bearing |
| CN102510160A (en) * | 2011-10-31 | 2012-06-20 | 永济新时速电机电器有限责任公司 | Motor bearing lubrication system |
| CN202374084U (en) * | 2011-12-20 | 2012-08-08 | 重庆赛力盟电机有限责任公司 | Insulation structure for motor rotating shaft bearing and housing end cap |
| CN202561003U (en) * | 2012-02-28 | 2012-11-28 | 苏州市吴中区东方成套电器设备有限公司 | Oil slinger |
| CN104158337A (en) * | 2014-08-21 | 2014-11-19 | 永济新时速电机电器有限责任公司 | Semi direct drive permanent magnet wind turbine generator bearing lubrication system |
| KR101512945B1 (en) * | 2014-08-29 | 2015-04-16 | 현대중공업 주식회사 | Explosion proof motor having function for preventing oil leakage |
-
2016
- 2016-12-02 CN CN201611095075.8A patent/CN106451893A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1224909A1 (en) * | 1984-07-27 | 1986-04-15 | Харьковский политехнический институт им.В.И.Ленина | Bearing unit of electric machine |
| US20020097931A1 (en) * | 2001-01-19 | 2002-07-25 | Olympus Optical Co., Ltd. | Hydrodynamic bearing for motor |
| JP2009162272A (en) * | 2007-12-28 | 2009-07-23 | Nsk Ltd | Rolling bearing and brushless motor |
| CN201490814U (en) * | 2009-09-25 | 2010-05-26 | 永济新时速电机电器有限责任公司 | Motor with easily assembled and disassembled bearing |
| CN102510160A (en) * | 2011-10-31 | 2012-06-20 | 永济新时速电机电器有限责任公司 | Motor bearing lubrication system |
| CN202374084U (en) * | 2011-12-20 | 2012-08-08 | 重庆赛力盟电机有限责任公司 | Insulation structure for motor rotating shaft bearing and housing end cap |
| CN202561003U (en) * | 2012-02-28 | 2012-11-28 | 苏州市吴中区东方成套电器设备有限公司 | Oil slinger |
| CN104158337A (en) * | 2014-08-21 | 2014-11-19 | 永济新时速电机电器有限责任公司 | Semi direct drive permanent magnet wind turbine generator bearing lubrication system |
| KR101512945B1 (en) * | 2014-08-29 | 2015-04-16 | 현대중공업 주식회사 | Explosion proof motor having function for preventing oil leakage |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091325A (en) * | 2017-06-12 | 2017-08-25 | 国电联合动力技术有限公司 | A kind of generator shaft bearing sealing device |
| CN107091325B (en) * | 2017-06-12 | 2019-03-19 | 国电联合动力技术有限公司 | A kind of generator shaft bearing sealing device |
| CN112003412A (en) * | 2020-09-01 | 2020-11-27 | 青岛中加特电气股份有限公司 | End cover structure of motor bearing |
| CN112242781A (en) * | 2020-09-22 | 2021-01-19 | 青岛中加特电气股份有限公司 | Frequency conversion all-in-one machine |
| CN112595468A (en) * | 2020-12-08 | 2021-04-02 | 中车永济电机有限公司 | Seal detection device and seal detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |