CN202019262U - AC motor bearing of internal-combustion engine - Google Patents
AC motor bearing of internal-combustion engine Download PDFInfo
- Publication number
- CN202019262U CN202019262U CN2011201432767U CN201120143276U CN202019262U CN 202019262 U CN202019262 U CN 202019262U CN 2011201432767 U CN2011201432767 U CN 2011201432767U CN 201120143276 U CN201120143276 U CN 201120143276U CN 202019262 U CN202019262 U CN 202019262U
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- CN
- China
- Prior art keywords
- bearing
- rotor
- stator
- support
- motor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a motor bearing, especially to an AC motor bearing of an internal-combustion engine. The motor bearing comprises a front bearing cover, a front bearing, a front end cover, a machine base, a stator, a back end cover, a back bearing cover, a back bearing, a rotating shaft and a rotor. The rotating shaft is arranged in the rotor, the stator is fixed in the rotor, and the front bearing is fixed in the front end cover; the back bearing is fixed in the back end cover, the stator is arranged in the machine base, and the front bearing and the back bearing are insulating bearings. By using the AC motor bearing, the loop formed by the bearings and the machine base can be cut off, a shaft current can be avoided to be generated, and the service life of the AC motor can be prolonged, saving the cost and improving the efficacy.
Description
Technical field
The utility model relates to a kind of motor bearings, especially a kind of internal combustion engine alternating current machine bearing.
Background technology
Alternating current machine can produce shaft voltage between the rotating shaft two ends or between axle and the bearing when operation, shaft voltage is that the generation that is accompanied by electric rotating machine just exists.The reason that general power frequency motor shaft voltage produces mainly is that reasons such as the magnetic circuit of wound motor axle is asymmetric, bearing operation decentraction, one pole effect, electrostatic induction, capacitance current cause.Under the motor rotation situation after shaft voltage forms, if the insulation that the bearing grease oil film is set up is destroyed, between rotating shaft and support, formed path, promptly there is electric current to pass through in axle--bearing--support loop, shaft current has also just produced, and the bearing of former alternating current motor is a plain bearing, the naked performance, the insulation of bearing grease oil film is easy to be punctured by shaft voltage, produces shaft current.Can be when bearing flows through shaft current by bearing film discharge or conduction, form blackout phenomenons such as galvanic corrosion at bearing enclose and bearing place, axle and bearing are damaged, motor is in operation produces noise, vibration, also can make electric machine stand charged, shorten the useful life of bearing so greatly.To cause bearing failure if can not in time find to handle, the Maintenance and Repair and the utilization of motor brought great influence.
Summary of the invention
In order to overcome the deficiency that may produce shaft voltage between rotating shaft two ends or axle and the bearing, the utility model provides a kind of internal combustion engine alternating current machine bearing.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of internal combustion engine alternating current machine bearing, comprise front bearing retainer, fore bearing, front end housing, support, stator, rear end cap, rear bearing cover, rear bearing, rotating shaft and rotor, rotating shaft places in the rotor, stator is fixed on the rotor, the front end bearing fixing is at front end housing, rear bearing is fixed in the rear end cap, stator places in the support, front end housing is located by connecting on a side of support, rear end cap is located by connecting on the opposite side of support, front bearing retainer is located by connecting on the front end housing, and rear bearing cover is located by connecting on the rear end cap, and fore bearing and rear bearing are insulation bearing.
The beneficial effects of the utility model are: use this alternating current machine bearing, can cut-out, the loop that forms of bearing and support, and can avoid the generation of shaft current, prolong the useful life of alternating current machine, saved cost, improved effect.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a schematic diagram of the present utility model.
1. front bearing retainers among the figure, 2. fore bearing, 3. front end housing, 4. support, 5. stator, 6. rear end cap, 7. rear bearing cover, 8. rear bearing, 9. rotating shaft, 10. rotor.
Embodiment
As Fig. 1 is structural representation of the present utility model, comprise front bearing retainer 1, fore bearing 2, front end housing 3, support 4, stator 5, rear end cap 6, rear bearing cover 7, rear bearing 8, rotating shaft 9 and rotor 10, rotating shaft 9 places in the rotor 10, stator 5 is fixed on the rotor 10, preceding end bearing 2 is fixed on front end housing 3, rear bearing 8 is fixed in the rear end cap 6, stator 5 places in the support 4, front end housing 3 is located by connecting on a side of support 4, rear end cap 6 is located by connecting on the opposite side of support 4, front bearing retainer 1 is located by connecting on the front end housing 3, and rear bearing cover 7 is located by connecting on the rear end cap 6, and fore bearing 2 and rear bearing 8 are insulation bearing.
During work, use the fore bearing 2 and the rear bearing 8 of insulation bearing, can completely cut off and when alternating current machine operate, produce the shaft voltage shaft current of formation between rotating shaft 9, fore bearing 2, rear bearing 8 and support 4 at last between rotating shaft 9 two ends or between rotating shaft 9, fore bearing 2 and the rear bearing 8.Use this motor bearings can avoid the galvanic corrosion blackout phenomenon of fore bearing 2 and rear bearing 8, can effectively prolong the useful life of alternating current machine, saved cost, improved effect.
Claims (1)
1. internal combustion engine alternating current machine bearing, comprise front bearing retainer (1), fore bearing (2), front end housing (3), support (4), stator (5), rear end cap (6), rear bearing cover (7), rear bearing (8), rotating shaft (9) and rotor (10), described rotating shaft (9) places in the rotor (10), described stator (5) is fixed on the rotor (10), end bearing (2) is fixed on front end housing (3) before described, described rear bearing (8) is fixed in the rear end cap (6), described stator (5) places in the support (4), described front end housing (3) is located by connecting on a side of support (4), described rear end cap (6) is located by connecting on the opposite side of support (4), described front bearing retainer (1) is located by connecting on the front end housing (3), described rear bearing cover (7) is located by connecting on the rear end cap (6), it is characterized in that: fore bearing (2) and rear bearing (8) are insulation bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201432767U CN202019262U (en) | 2011-05-09 | 2011-05-09 | AC motor bearing of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201432767U CN202019262U (en) | 2011-05-09 | 2011-05-09 | AC motor bearing of internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202019262U true CN202019262U (en) | 2011-10-26 |
Family
ID=44812929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201432767U Expired - Fee Related CN202019262U (en) | 2011-05-09 | 2011-05-09 | AC motor bearing of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202019262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482859A (en) * | 2017-08-30 | 2017-12-15 | 广东威灵电机制造有限公司 | Plastic packaging motor |
-
2011
- 2011-05-09 CN CN2011201432767U patent/CN202019262U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482859A (en) * | 2017-08-30 | 2017-12-15 | 广东威灵电机制造有限公司 | Plastic packaging motor |
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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: 20111026 Termination date: 20170509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |