CN202134989U - Shaft current resistant motor end cover - Google Patents
Shaft current resistant motor end cover Download PDFInfo
- Publication number
- CN202134989U CN202134989U CN201120274995U CN201120274995U CN202134989U CN 202134989 U CN202134989 U CN 202134989U CN 201120274995 U CN201120274995 U CN 201120274995U CN 201120274995 U CN201120274995 U CN 201120274995U CN 202134989 U CN202134989 U CN 202134989U
- Authority
- CN
- China
- Prior art keywords
- boss
- end cover
- end cap
- shaft current
- insulating
- 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 - Lifetime
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- Motor Or Generator Frames (AREA)
Abstract
A shaft current resistant motor end cover is provided with an inner end cover and an outer end cover; wherein the outer end cover is provided with an inner boss thereon; the inner end cover is provided with an outer boss thereon, the inner boss and the outer boss are respectively provided with a connecting through hole, the inner boss and the outer boss are connected fixedly through a bolt and a gasket; an axial contact surface between the inner boss and the outer boss is provided with an insulating layer, a radial contact surface between the inner boss and the outer boss is provided with an insulating pad, an insulating gasket is provided between the gasket and the inner boss, and an insulating sleeve is sleeved on the bolt at the position corresponding to the inner boss. The shaft current resistant motor end of the utility model can effectively block a shaft current, and has the advantages of stable insulating property and raised production efficiency.
Description
Technical field
The utility model relates to a kind of electric motor end cap, relates in particular to a kind of electric motor end cap of anti-shaft current.
Background technology
In order to protect motor bearings not receive the influence of shaft current, mainly be employed in bearing chamber inner surface spraying insulating material at present and use the insulation bearing dual mode.Behind bearing chamber inner surface spraying insulating barrier, because bearing heating is perhaps run into insulating coating when the dismounting bearing, insulating coating is easy to be destroyed, thereby makes failure of insulation; And the use insulation bearing often must shift to an earlier date and Production of bearing producer special subscription, and not only cost is high; And the production cycle is long; When especially applying unit need be changed, often cause maintenance cycle long, influence production efficiency because of can not in time having bought corresponding bearing.
The utility model content
The purpose of the utility model is to provide a kind of electric motor end cap stable, the anti-shaft current that can enhance productivity that insulate.
The technical scheme of the utility model is: be provided with inside and outside two end caps; On outer end cap, be provided with inner convex platform; On inner end cap, be provided with outer lug boss, on interior outer lug boss, be provided with connecting through hole, interior outer lug boss connects fixing through bolt, packing ring; The axial contact-making surface of said inside and outside boss is provided with insulating barrier, on the radially contact-making surface of inside and outside boss, is provided with insulation cushion, between packing ring and inner convex platform, is provided with insulating washer, is with insulating sleeve at bolt and inner convex platform correspondence position.
The utility model is divided into inside and outside end cap with electric motor end cap, can block shaft current effectively through the insulating part that is arranged between the inside and outside end cap, in addition; The insulation position of inner end cap and outer end cap is for being fixedly connected; Not fragile, stable insulation has improved production efficiency.
Description of drawings
Fig. 1 is the utility model example structure sketch map;
Fig. 2 is the inner end cap structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
With reference to accompanying drawing, present embodiment is provided with an outer end cap 1 and inner end cap 8, on outer end cap 1, is provided with inner convex platform 12; On inner end cap 8, be provided with outer lug boss 13.On interior outer lug boss, be provided with connecting through hole, bolt 7, packing ring 5 connect interior outer lug boss fixing through connecting through hole; On the axial contact-making surface of inside and outside boss, be provided with insulating barrier 11, on the radially contact-making surface of inside and outside boss, be provided with insulation cushion 2.Be provided with insulating washer 4 between said packing ring 5 and the inner convex platform 12, said bolt 7 is with insulating sleeve 3 with inner convex platform 12 correspondence positions,
The shaft current that is produced in the course of work passes to bearing 9 and inner end cap 8 through axle 10, because insulation fully between inner end cap 8 and the outer end cap 1, thereby effectively shaft current is cut off between inner end cap 8 and outer end cap 1.
Claims (1)
1. the electric motor end cap of an anti-shaft current is characterized in that: be provided with inside and outside two end caps; On outer end cap, be provided with inner convex platform; On inner end cap, be provided with outer lug boss, on interior outer lug boss, be provided with connecting through hole, interior outer lug boss connects fixing through bolt, packing ring; The axial contact-making surface of said inside and outside boss is provided with insulating barrier, on the radially contact-making surface of inside and outside boss, is provided with insulation cushion, between packing ring and inner convex platform, is provided with insulating washer, is with insulating sleeve at bolt and inner convex platform correspondence position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120274995U CN202134989U (en) | 2011-08-01 | 2011-08-01 | Shaft current resistant motor end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120274995U CN202134989U (en) | 2011-08-01 | 2011-08-01 | Shaft current resistant motor end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134989U true CN202134989U (en) | 2012-02-01 |
Family
ID=45523746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120274995U Expired - Lifetime CN202134989U (en) | 2011-08-01 | 2011-08-01 | Shaft current resistant motor end cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194665A1 (en) * | 2013-06-07 | 2014-12-11 | Bao Xiaofu | Electric motor |
-
2011
- 2011-08-01 CN CN201120274995U patent/CN202134989U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194665A1 (en) * | 2013-06-07 | 2014-12-11 | Bao Xiaofu | Electric motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
|
| CX01 | Expiry of patent term |