CN202940675U - Inner bearing cover for rolling bearing of motor - Google Patents
Inner bearing cover for rolling bearing of motor Download PDFInfo
- Publication number
- CN202940675U CN202940675U CN 201220648744 CN201220648744U CN202940675U CN 202940675 U CN202940675 U CN 202940675U CN 201220648744 CN201220648744 CN 201220648744 CN 201220648744 U CN201220648744 U CN 201220648744U CN 202940675 U CN202940675 U CN 202940675U
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- bearing
- oil storage
- bearing cover
- motor
- internal
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Abstract
The utility model relates to an inner bearing cover for a rolling bearing of a motor. Oil injection tanks and a plurality of oil storage tanks, which are arranged uniformly and circumferentially, are cast at one side, facing towards a bearing, of the inner bearing cover; and the oil injection tanks and the oil storage tanks are separated by casting ribs and the oil storage tanks are separated by casting ribs. The casting ribs between the oil injection tanks and the oil storage tanks and the end face of the inner ring of the inner bearing cover are in the same height and are lower than a spigot for fixing the outer circle of the bearing by a certain height. The diameter of the inner circular ring of the oil injection tanks and the oil storage tanks is slightly larger than the outer diameter of the inner ring of the bearing, and the inner circular ring of the oil injection tanks and the oil storage tanks is cast with oblique slopes tilting towards the inner ring of the bearing. The inner bearing cover is simple in structure and has good casting manufacturability and sealing performance, the motor bearing can be lubricated continuously and effectively, and the safe and reliable operation of the motor can be ensured.
Description
Technical field
The utility model belongs to the renovation technique of motor bearings, is specifically related to a kind of motor rolling bearing internal bearing cover.
Background technology
The rolling bearing of motor is the mechanical organ of a kind of precision of support motor rotating shaft rotation, and its lubricating requirement to bearing is very high.Easily cause bearing temperature high when bearing lubrication is bad, can cause the bearing locking when serious, cause motor out of service.Motor rolling internal bearing cover design at present is very unreasonable, is mainly reflected in: 1.Oiling groove design is unreasonable, causes lubricating grease can't in time be filled into bearing inside 2 unreasonable without oil-bearing structure or oil-bearing structure design, causes internal bearing cover can't store lubricating grease, can't satisfy the continuous lubrication needs of bearing.3, structural design is unreasonable, and the sealing surface that easily causes lubricating grease to pass internal bearing cover and axle enters motor internal, gently causes motor internal dirty, and is heavy cause insulating motor coil to lose efficacy, burn-down of electric motor.
The utility model content
The utility model purpose is the above-mentioned weak point that solves present motor bearings inner cap, and a kind of novelty simple in structure is provided, good seal performance, and the internal bearing cover that lubricates that can make motor bearings obtain reliably, continue, thus guarantee the safe and reliable operation of motor.
Technical scheme: a kind of motor rolling bearing internal bearing cover, be fixed on the inboard of bearing pedestal, its center is provided with axis hole, at this inner cap on a side of bearing, uniform at least one oiling groove and a plurality of oil storage tank of being provided with, the radical length of oiling groove greater than oil storage tank and with the oiling channel connection, oiling groove with go out between oil groove by the casting muscle to separate, oiling groove and oil storage tank are provided with interior annulus near an end in the center of circle, and axis hole is positioned at circle ring center.
Annulus end face height is identical in casting muscle between oiling groove and oil storage tank and internal bearing cover, and all lower than the seam certain distance of rigid bearing outer ring.Internal bearing cover and retainer, inner ring generation metal friction in the time of can avoiding motor rotation, there was a mechanical failure, can make again a part of lubricating grease that is filled into internal bearing cover enter in the oiling groove and oil storage tank of circle distribution by this gap, replace original old grease, thereby can make bearing obtain the lubricated of continuous and effective.
Internal bearing cover labyrinth seal together with arranging between bearing inner race, the labyrinth seal together with arranging between rotating shaft of the axis hole of internal bearing cover.
The quantity of oiling groove equals the bolt quantity of fastening internal bearing cover, thereby makes internal bearing cover when mounted regardless of the circumference angle is installed, and an oiling groove is always arranged to the oil filler point on bearing pedestal, can guarantee the proper lubrication that bearing obtains.
The interior annulus of oiling groove and oil storage tank is cast with the slope of oblique bearing inner race, has improved the casting manufacturability of internal bearing cover, is convenient to the production of casting sand type.
Beneficial effect: 1, the oiling groove in the present invention and oil storage tank and oil storage tank and oil storage tank adopt the casting muscle to separate, can make the lubricating grease that is filled in the internal bearing cover oiling groove divide lubricating grease directly to enter in antifriction-bearing raceway under the effect of oiling pressure because of the inhibition bottom of casting muscle, thereby make lubricating grease in time be filled into bearing inside.Oil storage tank and oil storage tank adopt the casting muscle to separate, can make lubricating grease rely on self stickiness and the supporting role of casting muscle under be kept at the circumference of internal bearing cover, the analysing gradually oily effect and can make bearing obtain the lubricated of continuous and effective of the lubricating grease that the circumference by internal bearing cover stores.2, the interior circle diameter of oiling groove and oil storage tank is slightly larger than the external diameter of bearing inner race, can make internal bearing cover with between bearing inner race and internal bearing cover and rotating shaft run through the position form together with labyrinth seal, avoid lubricating grease to enter motor internal under the effect of oiling pressure, can prevent that gently motor internal is dirty, heavy can prevent from causing burn-down of electric motor because insulating motor coil loses efficacy, the part lubricating grease that enters in oiling groove is directly entered in antifriction-bearing raceway under the effect of oiling pressure, thereby make lubricating grease in time be filled into bearing inside.
Description of drawings
Fig. 1 is the structural representation of the utility model rolling bearing inner cap section;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Number in the figure 1 is bearing, and 2 is bearing pedestal, and 3 is internal bearing cover, and 3-1 is oiling groove, and 3-2 is the casting muscle, and 3-3 is oil storage tank, annulus in 3-4, and 4 are rotating shaft.
Embodiment
referring to Fig. 1, Fig. 2 and Fig. 3, the rolling bearing inner cover structure that the utility model proposes is by bearing 1, bearing pedestal 2 internal bearing covers 3, rotating shaft 4 compositions such as grade, the lubricating grease that is filled into internal bearing cover 3 positions by oil filler point on bearing pedestal 2 enters internal bearing cover 3 inside by oiling groove 3-1, because the inhibition next part lubricating grease of oiling groove 3-1 both sides casting muscle 3-2 directly enters under the effect of oiling pressure in bearing 1 raceway, timely lubricating bearings, another part lubricating grease enters in the oiling groove 3-1 and oil storage tank 3-3 of circle distribution under the rotation of bearing 1 retainer drives, be kept in oiling groove 3-1 and oil storage tank 3-3 under the supporting role of the stickiness of lubricating grease dependence self and casting muscle 3-2, in the lubrication time again interval of motor, the lubricating grease that internal bearing cover 3 circumference store is separated out base oil gradually, base oil enters rolling bearing 1 raceway by the below of bearing 1 outer ring, can make bearing obtain the lubricated of continuous and effective.When motor rotation, inner ring and the rotating shaft of bearing 1 are rotated together, oiling groove runs through the position with the inner ring of the interior annulus 3-4 of oil storage tank and bearing 1 and internal bearing cover 3 with rotating shaft 4 and has formed the turning labyrinth sealing, thereby can avoid lubricating grease to enter motor internal under the effect of oiling pressure.
Claims (6)
1. motor rolling bearing internal bearing cover, be fixed on the inboard of bearing pedestal, its center is provided with axis hole, it is characterized in that: at this inner cap on a side of bearing, uniform at least one oiling groove and a plurality of oil storage tank of being provided with, the radical length of oiling groove greater than oil storage tank and with the oiling channel connection, oiling groove with go out between oil groove by the casting muscle to separate, oiling groove and oil storage tank are provided with interior annulus near an end in the center of circle, and axis hole is positioned at circle ring center.
2. motor rolling bearing internal bearing cover according to claim 1 is characterized in that: in the casting muscle between oiling groove and oil storage tank and internal bearing cover, annulus end face height is identical, and all lower than the seam certain distance of rigid bearing outer ring.
3. motor rolling bearing internal bearing cover according to claim 2, is characterized in that: internal bearing cover labyrinth seal together with arranging between bearing inner race.
4. motor rolling bearing internal bearing cover according to claim 2, is characterized in that: the labyrinth seal together with arranging between rotating shaft of the axis hole of internal bearing cover.
5. motor rolling bearing internal bearing cover according to claim 1, it is characterized in that: the quantity of oiling groove equals the bolt quantity of fastening internal bearing cover.
6. motor rolling bearing internal bearing cover according to claim 1, it is characterized in that: the interior annulus of oiling groove and oil storage tank is cast with the slope of oblique bearing inner race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648744 CN202940675U (en) | 2012-11-30 | 2012-11-30 | Inner bearing cover for rolling bearing of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648744 CN202940675U (en) | 2012-11-30 | 2012-11-30 | Inner bearing cover for rolling bearing of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940675U true CN202940675U (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220648744 Expired - Fee Related CN202940675U (en) | 2012-11-30 | 2012-11-30 | Inner bearing cover for rolling bearing of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940675U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312078A (en) * | 2013-07-11 | 2013-09-18 | 上海川也电机有限公司 | Motor with non-sealed bearing |
| CN106762788A (en) * | 2017-01-09 | 2017-05-31 | 上海第水泵厂有限公司 | Built-up shaft pressure cap |
| CN106931037A (en) * | 2017-03-31 | 2017-07-07 | 唐山中浩化工有限公司 | A kind of bearing end cap seal structure |
| CN107559329A (en) * | 2017-10-30 | 2018-01-09 | 镇江建华轴承有限公司 | A kind of bearing block |
| CN107575491A (en) * | 2017-10-30 | 2018-01-12 | 镇江建华轴承有限公司 | A kind of bearing positioning seat |
| CN107605972A (en) * | 2017-10-30 | 2018-01-19 | 镇江建华轴承有限公司 | A kind of bearing (ball) cover |
| CN107701590A (en) * | 2017-10-30 | 2018-02-16 | 镇江建华轴承有限公司 | A kind of bearing (ball) cover structure |
| WO2022127375A1 (en) * | 2020-12-14 | 2022-06-23 | 中车株洲电机有限公司 | Sealing structure for use in bearing lubrication |
-
2012
- 2012-11-30 CN CN 201220648744 patent/CN202940675U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103312078A (en) * | 2013-07-11 | 2013-09-18 | 上海川也电机有限公司 | Motor with non-sealed bearing |
| CN106762788A (en) * | 2017-01-09 | 2017-05-31 | 上海第水泵厂有限公司 | Built-up shaft pressure cap |
| CN106931037A (en) * | 2017-03-31 | 2017-07-07 | 唐山中浩化工有限公司 | A kind of bearing end cap seal structure |
| CN107559329A (en) * | 2017-10-30 | 2018-01-09 | 镇江建华轴承有限公司 | A kind of bearing block |
| CN107575491A (en) * | 2017-10-30 | 2018-01-12 | 镇江建华轴承有限公司 | A kind of bearing positioning seat |
| CN107605972A (en) * | 2017-10-30 | 2018-01-19 | 镇江建华轴承有限公司 | A kind of bearing (ball) cover |
| CN107701590A (en) * | 2017-10-30 | 2018-02-16 | 镇江建华轴承有限公司 | A kind of bearing (ball) cover structure |
| WO2022127375A1 (en) * | 2020-12-14 | 2022-06-23 | 中车株洲电机有限公司 | Sealing structure for use in bearing lubrication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20201130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |