CN101594021B - Injection-discharge oil device for lubrication of rotor bearing of high capacity motor - Google Patents
Injection-discharge oil device for lubrication of rotor bearing of high capacity motor Download PDFInfo
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- CN101594021B CN101594021B CN2009100653897A CN200910065389A CN101594021B CN 101594021 B CN101594021 B CN 101594021B CN 2009100653897 A CN2009100653897 A CN 2009100653897A CN 200910065389 A CN200910065389 A CN 200910065389A CN 101594021 B CN101594021 B CN 101594021B
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Abstract
The invention relates to an injection-discharge oil device for lubrication of a rotor bearing of a high capacity motor, which is mainly characterized in that: the upper part of an end cover of the motor is provided with an injection oil channel hole, a bearing pressing end face of a bearing inner cover is provided with a ring oil groove communicated with the injection oil channel hole and the bearing, the outer end face of a bearing outer cover is provided with a discharge oil groove with a ring opening communicated with the bearing, the opening of the discharge oil groove is provided with an oil throwing disc fixedly connected with a rotary shaft of the motor, and the lower part of the bearing outer cover is provided with a discharge oil hole communicated with the discharge oil groove. The device has the advantages that: the structure of an oil path is reasonably designed, and the lubricating performance is reliable; because the whole oil path is enclosed and circulated, the intrusion of dust and sewage and the plugging of the oil part can be effectively avoided, the cleanness of the lubricating grease is ensured, the spoiled waste of the lubricating grease is eliminated, and the operation of injection oil is convenient.
Description
Technical field
The invention belongs to motor appurtenances technical field, is a kind of injection-discharge oil device for lubrication of rotor bearing of high capacity motor.
Background technology
In the running of high-rating generator; as the bearing that connects machine shaft and end cap; bearing greatly and be the radial and axial load of alternation; therefore lubricated in its running seems particularly important; in case insufficient lubrication occurs, then can cause because of the bearing breakage or burn to cause stopping accident.And the repair and replacement of bearing bother very much, generator ' s cover, bearing and rotor all must be dismantled disintegration after, the bearing that could more renew, adopt the hot pressing assembling between bearing and the machine shaft, its dismounting difficulty is very big, will bring very big economic loss to the user in addition.And in existing technology, to lubricating of motor bearings, normally on bearing end cover and bearing (ball) cover, offer a horizontal oil filler point, the lubricating grease that is injected by oil filler point enters the rubbing surface of bearing, and bearing is lubricated and cools off, and heats up and thinning through bearing friction, inflow remains in the cavity between bearing end cover inwall and the bearing, on bearing end cover, be provided with a outage, regularly screw out plug, again waste oil is discharged with the plug sealing.The defective that this notes oil extraction mode exists is: waste oil is aged deterioration at high temperature, and carry metal dust, long-term aggregated, be trapped in the cavity between bearing end cover inwall and the bearing, be easy to be back to the facial position of bearing friction, cause the pollution of new supplemental lubrication fat, cause lubrication failure, premature wear and the damage of bearing and the waste of lubricating grease.And, lacking effective seal between bearing end cover and the machine shaft, outside dust enters bearing friction face easily thus, influences the lubricant effect of bearing.In addition, the electric motor fan end needs shutdown, dismounting fan guard and plug when annotating oil extraction, can carry out, very trouble.Up to now, this problem does not also obtain comparatively desirable solution.
Summary of the invention
The purpose of this invention is to provide a kind of immersion of dust, water dirt and oil circuit of can preventing effectively stops up, guarantee the cleaning of lubricating grease, stop the rotten waste and the backflow thereof of lubricating grease, and it is rational in infrastructure, greasy property is reliable, the injection-discharge oil device for lubrication of rotor bearing of high capacity motor that oiling is easy to operate.
Realize that the technical scheme that purpose of the present invention is taked is: this device comprises electric motor end cap, machine shaft, motor bearings, bearing end cover and internal bearing cover, wherein, the top of electric motor end cap is provided with the oiling access opening, the bearing of internal bearing cover compresses end face and is provided with the annular oil groove that is communicated with described oiling access opening and bearing, the outer face of bearing end cover is provided with the annular opening oil scupper that is communicated with bearing, its opening is provided with the disc of fixedlying connected with machine shaft, and the bottom of bearing end cover is provided with the outage that is communicated with described oil scupper.
Be provided with annular seal groove in the described oil scupper, the V-arrangement elastic seal ring is housed in the sealing groove.
The circumference that described disc cooperates with oil scupper is provided with the oil seal groove.
Oil fuel tube and pump nozzle are equipped with in the top of described oiling access opening, and oil fuel tube is fixedlyed connected with motor fan housing by sending out blue cover.
The injection-discharge oil device for lubrication of rotor bearing of high capacity motor of making according to such scheme, its oil channel structures is reasonable in design, greasy property is reliable, and whole oil circuit sealing circulation, the immersion and the oil circuit that can prevent dust, water dirt effectively stop up, and guarantee the cleaning of lubricating grease, the rotten waste and the backflow thereof of stopping lubricating grease, make bearing can access good lubricated and cooling all the time, and the notes oil extraction is very convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, injection-discharge oil device for lubrication of rotor bearing of high capacity motor of the present invention, comprise electric motor end cap 1, internal bearing cover 3, bearing end cover 4, machine shaft 7 and motor bearings 8, wherein, be provided with oiling access opening 2 on the top of electric motor end cap 1, oil fuel tube 12 and pump nozzle 14 are equipped with in the top of oiling access opening 2, and oil fuel tube 12 is fixedlyed connected with motor fan housing 15 by sending out blue cover 13.The bearing of internal bearing cover 3 compresses end face and is provided with annular oil groove 3-1, and this annular oil groove 3-1 is communicated with the oiling access opening 2 and the bearing 8 on electric motor end cap 1 top, and constitutes the oiling passage of motor bearings 8.Be provided with the annular opening oil scupper 5 that can be communicated with bearing 8 on the outer face of bearing end cover 4, its opening is provided with disc 6, and this disc 6 is with machine shaft 7 fixedly connected and rotations.On disc 6 and circumference that oil scupper 5 cooperates, be provided with the oil seal groove 6-1 that is used to prevent oil leak, in the fluid in the oil scupper 5 enters this oil seal groove 6-1, formation is to the oil seal in gap between disc 6 and the oil scupper 5, can prevent entering of the leakage of oil scupper 5 inner fluids and outside dust, water dirt, and the mating surface of disc 6 with oil scupper 5 is lubricated.The outer face of bearing end cover 4 is provided with the annular seal groove 9 that is communicated with bearing 8, V-arrangement elastic seal ring 10 is housed in the groove, be used for the sealing of oil scupper 5, when the waste oil in the bearing 8 flow to disc 6 positions, under the centrifugal action of disc 6 rotations, get rid of to elastic seal ring 10 positions, and elastic seal ring 10 pressed off, waste oil is entered in the oil scupper 5; And, then make V-arrangement elastic seal ring 10 distendings when the pressure of waste oil in the oil scupper 5 during greater than external pressure, with oil scupper 5 sealings, unlikely the releasing of waste oil is back to the bearing friction zone.The bottom of bearing end cover 4 is provided with the outage 11 that is communicated with described oil scupper 5, and the waste oil in the oil scupper 5 can be discharged at any time.
Operation principle before motor brings into operation, should be filled with lubricating grease earlier, to reduce the friction of bearing in motor bearings 8.Its method is that lubricating grease enters motor bearings 8 via the annular oil groove 3-1 on oiling access opening 2 and the internal bearing cover 3 under filling pressure, motor bearings 8 is lubricated by the pouring orifice injection lubricating grease on electric motor end cap 1 oiling access opening 2 tops.In motor operation course, through certain cycle of operation, by the friction and the intensification of motor bearings 8, lubricating grease can dilute gradually, and flows into automatically in the cavity between disc 6 and the bearing 8.Because disc 6 is with machine shaft 7 rotations; centrifugal force by its generation gets rid of lubricating oil in the oil scupper 5, and is discharged by the outage 11 of bearing end cover 4 bottoms, in motor operation course; as long as regular grease up, and when grease up, need not shut down.
Claims (3)
1. injection-discharge oil device for lubrication of rotor bearing of high capacity motor, comprise electric motor end cap, machine shaft, motor bearings, bearing end cover and internal bearing cover, it is characterized in that: the top of electric motor end cap is provided with the oiling access opening, the bearing of internal bearing cover compresses end face and is provided with the annular oil groove that is communicated with described oiling access opening and bearing, the outer face of bearing end cover is provided with the annular opening oil scupper that is communicated with bearing, its opening is provided with the disc of fixedlying connected with machine shaft, be provided with annular seal groove in the oil scupper, the V-arrangement elastic seal ring is housed in the sealing groove, and the bottom of bearing end cover is provided with the outage that is communicated with described oil scupper.
2. injection-discharge oil device for lubrication of rotor bearing of high capacity motor according to claim 1 is characterized in that: the circumference that described disc cooperates with oil scupper is provided with the oil seal groove.
3. injection-discharge oil device for lubrication of rotor bearing of high capacity motor according to claim 1 is characterized in that: oil fuel tube and pump nozzle are equipped with in the top of described oiling access opening, and oil fuel tube is fixedlyed connected with motor fan housing by the flange cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100653897A CN101594021B (en) | 2009-07-08 | 2009-07-08 | Injection-discharge oil device for lubrication of rotor bearing of high capacity motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100653897A CN101594021B (en) | 2009-07-08 | 2009-07-08 | Injection-discharge oil device for lubrication of rotor bearing of high capacity motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101594021A CN101594021A (en) | 2009-12-02 |
| CN101594021B true CN101594021B (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100653897A Active CN101594021B (en) | 2009-07-08 | 2009-07-08 | Injection-discharge oil device for lubrication of rotor bearing of high capacity motor |
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| CN (1) | CN101594021B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795029B (en) * | 2010-03-31 | 2012-06-20 | 湘电风能有限公司 | Anti-blockage device of grease discharge port of lubricating grease of bearing of wind turbine generator |
| CN101976902A (en) * | 2010-11-11 | 2011-02-16 | 无锡市中达电机有限公司 | Oil injection and discharge structure of motor |
| CN102280967A (en) * | 2011-08-03 | 2011-12-14 | 江苏微特利电机制造有限公司 | External shaft seal structure for motor output shaft end |
| CN102280966A (en) * | 2011-08-03 | 2011-12-14 | 江苏微特利电机制造有限公司 | Output shaft end radial water-throwing shaft sealing structure of motor |
| CN102969826A (en) * | 2012-11-27 | 2013-03-13 | 大连天元电机股份有限公司 | Bearing housing at main transmission end of super power wind driven generator |
| CN103410951A (en) * | 2013-07-22 | 2013-11-27 | 江苏威和重工有限公司 | Motor transmission shaft fixing device |
| CN107659038A (en) * | 2017-11-28 | 2018-02-02 | 威海众泰电机有限公司 | A kind of bearing discharge equipment of motor |
| CN107947476A (en) * | 2017-11-30 | 2018-04-20 | 无锡市天运五金机电有限公司 | A kind of water cooled machine |
| CN112054621B (en) * | 2020-08-25 | 2021-10-08 | 东营北方石油装备有限公司 | Sealing device of motor |
| CN112003412B (en) * | 2020-09-01 | 2021-08-20 | 青岛中加特电气股份有限公司 | End cover structure of motor bearing |
-
2009
- 2009-07-08 CN CN2009100653897A patent/CN101594021B/en active Active
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| CN101594021A (en) | 2009-12-02 |
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