CN106451892A - Shaft current preventing electric motor cover - Google Patents
Shaft current preventing electric motor cover Download PDFInfo
- Publication number
- CN106451892A CN106451892A CN201610761308.7A CN201610761308A CN106451892A CN 106451892 A CN106451892 A CN 106451892A CN 201610761308 A CN201610761308 A CN 201610761308A CN 106451892 A CN106451892 A CN 106451892A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- cover
- bearing block
- shaft current
- cavity
- 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.)
- Pending
Links
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 provides a shaft current preventing electric motor cover, and can solve the technical problem that an overall electric motor cover needs to be replaced after an insulating layer of a bearing chamber is fallen off in the prior art. The shaft current preventing electric motor cover comprises a cover body; the shaft current preventing electric motor cover is characterized in that the cover body adopts a cylinder structure with openings at the two ends; an upper cover plate, a bearing seat and a lower cover plate are arranged in the cavity of the cover body from the top to bottom; an upper through hole matched with an axle hole of the bearing seat is formed in the upper cover plate while a lower through hole matched with a mounting cavity of the bearing seat is formed in the lower cover plate; the upper cover plate and the lower cover plate are in threaded connection with the cavity of the cover body separately; the bearing seat is pressed and fixed through the upper cover plate and the lower cover plate; an annular upper positioning groove is formed in the lower end plane of the upper cover plate while an annular lower positioning lug boss is arranged on the upper end plane of the lower cover plate; an upper positioning lug boss and a lower positioning groove which are matched with the upper positioning groove and the lower positioning lug boss are arranged on the upper and lower end planes of the bearing seat respectively; and an insulating layer for coating the surface of the mounting cavity is formed in the bearing seat in an injection molding manner.
Description
Technical field
The present invention relates to electric motors are and in particular to the motor cover of anti-shaft current.
Background technology
Existing motor cover offers bearing chamber in centre, and bearing chamber is used for installing bearing, but this motor cover
Lack the design of anti-shaft current, easily form shaft current between motor cover, bearing and rotating shaft, shaft current can have a strong impact on axle
Hold the service life with motor, there is potential safety hazard in use, reliability is relatively low.Some motor cover are in bearing chamber
Inwall on injection be formed with insulating barrier, to prevent the generation of shaft current, but after long-term use, insulating barrier is easy to fall off, need more
Change whole motor cover, replacement cost is higher.
Content of the invention
For the problems referred to above, the invention provides the motor cover of anti-shaft current, it can solve prior art middle (center) bearing room
Insulating barrier come off after need to change the technical problem of whole motor cover.
Its technical scheme is such, it include lid it is characterised in that：Described lid is the cylinder knot of both ends open
Structure, is provided with upper cover plate, bearing block and lower cover from top to bottom in the cavity of described lid, described upper cover plate is provided with and described axle
The upper through hole of the shaft hole matching of bearing, described lower cover is provided with the lower through-hole with the installation cavity cooperation of described bearing block, described
Upper cover plate, lower cover are threadeded with the cavity of described lid respectively, and described bearing block is press-fited by described upper cover plate, lower cover
Fixing；
The lower surface of described upper cover plate is provided with the upper locating slot of ring-type, and the upper surface of described lower cover is provided with the lower fixed of ring-type
Position is raised, and the upper and lower end face of described bearing block is respectively equipped with the upper convex with described upper locating slot, the cooperation of lower positioning convex
Rise, lower locating slot；
In described bearing block, injection is formed with the insulating barrier on cladding installation cavity surface.
Further, the outer peripheral face of described bearing block is provided with filling slot and the perforation of connection filling slot and installation cavity,
Described insulating barrier is formed with and described filling slot, the filling part of perforation cooperation and connecting portion.
Further, described perforation is respectively arranged at two ends with bellmouth tapered from outside to inside, and the height of described bellmouth is
/ 2nd of perforation height.
The motor cover of the present invention, is provided with upper cover plate, bearing block and lower cover, upper cover plate from top to bottom in the cavity of lid
It is provided with the upper through hole with the shaft hole matching of bearing block, lower cover is provided with the lower through-hole with the installation cavity cooperation of bearing block, on
Cover plate, lower cover are threadeded with the cavity of lid respectively, and bearing block press-fits fixation by upper cover plate, lower cover, in insulating barrier
After coming off, only need to open upper and lower end cap, bearing block is knocked out, change bearing block, reduce replacement cost.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
As shown in figure 1, it includes lid 1, lid 1 is the tube structure of both ends open, in the cavity of lid 1 from top to bottom
It is provided with upper cover plate 2, bearing block 3 and lower cover 4, upper cover plate 2 is provided with the upper through hole with axis hole 35 cooperation of bearing block, lower cover
4 are provided with the lower through-hole with installation cavity 36 cooperation of bearing block, and upper cover plate 2, lower cover 4 are connected with the cavity screw thread of lid 1 respectively
Connect, bearing block 3 is connected together with the cavity of lid, and fixation is press-fited by upper cover plate 2, lower cover 4；
The lower surface of upper cover plate 2 is provided with the upper locating slot of ring-type, and the upper surface of lower cover 4 is provided with the lower convex of ring-type
Rise, the upper and lower end face of bearing block 3 is respectively equipped with and upper locating slot, the upper positioning convex 31 of lower positioning convex cooperation, lower positioning
Groove 32；
Injection in bearing block is formed with the insulating barrier 5 on cladding installation cavity surface, the outer peripheral face of bearing block 3 be provided with filling slot 33 with
And the perforation 34 of connection filling slot and installation cavity, insulating barrier 5 is formed with and filling slot, the filling part of perforation cooperation and connecting portion.
Perforation 34 is respectively arranged at two ends with bellmouth tapered from outside to inside, the height of bellmouth be perforation height two/
One, it is easy in injection moulding process, the feed liquid of insulating barrier is full of filling slot it is ensured that the bonding strength of insulating barrier and bearing block.
In Fig. 1,11 is location hole, is easy to the positioning assembling of motor cover and motor base (frame).
Claims (3)
1. the motor cover of anti-shaft current, it include lid it is characterised in that：Described lid is the tube structure of both ends open,
It is provided with upper cover plate, bearing block and lower cover from top to bottom, described upper cover plate is provided with and described bearing in the cavity of described lid
The upper through hole of the shaft hole matching of seat, described lower cover is provided with the lower through-hole with the cooperation of the installation cavity of described bearing block, described on
Cover plate, lower cover are threadeded with the cavity of described lid respectively, and described bearing block is press-fited solid by described upper cover plate, lower cover
Fixed；
The lower surface of described upper cover plate is provided with the upper locating slot of ring-type, and the upper surface of described lower cover is provided with the lower fixed of ring-type
Position is raised, and the upper and lower end face of described bearing block is respectively equipped with the upper convex with described upper locating slot, the cooperation of lower positioning convex
Rise, lower locating slot；
In described bearing block, injection is formed with the insulating barrier on cladding installation cavity surface.
2. anti-shaft current according to claim 1 motor cover it is characterised in that：Set on the outer peripheral face of described bearing block
There are filling slot and the perforation of connection filling slot and installation cavity, described insulating barrier is formed with and is coordinated with described filling slot, perforation
Filling part and connecting portion.
3. anti-shaft current according to claim 1 motor cover it is characterised in that：Described perforation be respectively arranged at two ends with by
Outer and interior tapered bellmouth, the height of described bellmouth is 1/2nd of perforation height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761308.7A CN106451892A (en) | 2016-08-31 | 2016-08-31 | Shaft current preventing electric motor cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761308.7A CN106451892A (en) | 2016-08-31 | 2016-08-31 | Shaft current preventing electric motor cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451892A true CN106451892A (en) | 2017-02-22 |
Family
ID=58090457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610761308.7A Pending CN106451892A (en) | 2016-08-31 | 2016-08-31 | Shaft current preventing electric motor cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451892A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723802A (en) * | 2012-06-26 | 2012-10-10 | 东方电气（乐山）新能源设备有限公司 | Novel end cover insulation structure of wind power generator |
| CN102857014A (en) * | 2012-09-17 | 2013-01-02 | 西安正麒电气有限公司 | Motor insulation bearing chamber |
| CN202798276U (en) * | 2012-08-24 | 2013-03-13 | 无锡华达电机有限公司 | Exposed motor insulation end cover |
| CN103023190A (en) * | 2012-12-17 | 2013-04-03 | 浙江金龙电机股份有限公司 | High-power variable frequency motor insulation bearing sleeve |
| CN202872549U (en) * | 2012-11-02 | 2013-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor end cover |
| CN206211727U (en) * | 2016-08-31 | 2017-05-31 | 无锡太昌精密机械有限公司 | A kind of motor cover of anti-shaft current |
-
2016
- 2016-08-31 CN CN201610761308.7A patent/CN106451892A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723802A (en) * | 2012-06-26 | 2012-10-10 | 东方电气（乐山）新能源设备有限公司 | Novel end cover insulation structure of wind power generator |
| CN202798276U (en) * | 2012-08-24 | 2013-03-13 | 无锡华达电机有限公司 | Exposed motor insulation end cover |
| CN102857014A (en) * | 2012-09-17 | 2013-01-02 | 西安正麒电气有限公司 | Motor insulation bearing chamber |
| CN202872549U (en) * | 2012-11-02 | 2013-04-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor end cover |
| CN103023190A (en) * | 2012-12-17 | 2013-04-03 | 浙江金龙电机股份有限公司 | High-power variable frequency motor insulation bearing sleeve |
| CN206211727U (en) * | 2016-08-31 | 2017-05-31 | 无锡太昌精密机械有限公司 | A kind of motor cover of anti-shaft current |
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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 | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20190726 |