CN201142609Y - Insulation bearing sleeve for electric motor - Google Patents
Insulation bearing sleeve for electric motor Download PDFInfo
- Publication number
- CN201142609Y CN201142609Y CNU2007200775000U CN200720077500U CN201142609Y CN 201142609 Y CN201142609 Y CN 201142609Y CN U2007200775000 U CNU2007200775000 U CN U2007200775000U CN 200720077500 U CN200720077500 U CN 200720077500U CN 201142609 Y CN201142609 Y CN 201142609Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- motor
- cover
- insulation layer
- insulating barrier
- 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
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 37
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 26
- 239000002131 composite material Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000004945 silicone rubber Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to an insulation bearing sleeve for a motor, which comprises a bearing sleeve, an insulation layer lapped on the external end surface of the bearing sleeve, and a bearing outer sleeve which heat-sleeves the bearing cover coated with the insulation layer on the internal end surface thereof. The insulation layer is shaped like an H; steps are respectively arranged at the both ends of the bearing sleeve and the bearing outer sleeve, thus embedding the both sides of the H-shaped insulation layer. The insulation layer at the both sides of the H-shaped insulation layer is formed by using silicone rubber for electrical purposes for pouring. As the usage of the technical solution, the insulation bearing sleeve can prevent the axial current from damaging the motor by increasing the bearing sleeve of the insulation layer, thus effectively prolonging the service life of the motor, facilitating the installation and the detachment, reducing the maintenance cost and the manufacturing cost of the motor, having wide range of applications, and laying a foundation for manufacturing large and medium-sized motors.
Description
Technical field
The utility model relates to motor manufacturing technology, relates in particular to a kind of motor insulation bearing cover.
Background technology
The end cap insulation system of direct current machine employing at present as shown in Figure 1, for the bearing holder (housing, cover) 3 ' that will have insulating barrier 5 ' is fixed in the end cap 4, needs end cap 4 ' is heated to certain temperature, carries out hot jacket again.The equipment of heating end cap 4 ', its volume and capacity must satisfy the overall dimension of electric motor end cap, and for large and middle size motor, the end cap external diameter is all more than 1 meter, and the cost of acquiring firing equipment will be very high.In addition, after bearing holder (housing, cover) 3 and end cap 4 ' hot jacket are one, also need process their outer surface.Adding man-hour, be difficult to avoid iron filings to enter insulating barrier between bearing holder (housing, cover) 3 ' and end cap 4 ', insulating barrier is in case by short circuit, just lost insulating effect.
Therefore, general motor structure of tape insulation layer not between end cap and bearing holder (housing, cover) is arranged in addition now, as shown in Figure 2, end cap 5 and bearing holder (housing, cover) 3 " fixing by bolt 4, do not need hot jacket.End cap 5 and bearing holder (housing, cover) 3 " between do not have insulating barrier, form the shaft current loop easily.In a single day shaft current very big, can cause bearing 2 badly damaged.
To sum up, be provided with the insulated end cover structure of insulating barrier in the structure shown in Figure 1, do not have fastening bolt to fix, the procedure more complicated has certain requirement for making big motor device, has strengthened manufacturing cost.
Do not have the insulating barrier insulation system in the structure shown in Figure 2, form shaft current easily, that is: destroy motor bearings, strengthened maintenance cost.
The utility model content
The utility model aims to provide a kind of can prevent to form shaft current, easier installation and removal, and the convenient motor insulation bearing cover of making.
A kind of motor insulation bearing cover provided by the utility model, it comprises a bearing holder (housing, cover), a wrapped insulating barrier on the bearing holder (housing, cover) outer face, and the bearing outside of bearing holder (housing, cover) hot jacket on its inner face that will be surrounded by insulating barrier.
In above-mentioned motor overlapped with insulation bearing, insulating barrier was the I-shaped shape, and respectively is provided with a step in the both ends of the surface of described bearing holder (housing, cover) and bearing outside, and I-shaped insulating barrier both sides are embedded.
In above-mentioned motor overlapped with insulation bearing, two edge insulating layer electricity consumption workers of insulating barrier I-shaped shape formed with the silicon rubber cast.
In above-mentioned motor overlapped with insulation bearing, insulating barrier was to be made by composite insulating material.
In above-mentioned motor overlapped with insulation bearing, the insulation bearing cover was to fix by the end cap of bolt and motor.
Owing to adopted above-mentioned technical solution, the utility model is by setting up the bearing holder (housing, cover) of insulating barrier, prevent the destruction of shaft current to motor, thereby effectively prolong the useful life of motor, be easy for installation and removal, and can reduce maintenance cost and motor manufacturing cost, and applied widely, lay a good foundation for making large and middle size motor.
Description of drawings
Fig. 1 is a kind of schematic diagram of end cap insulation system of present direct current machine employing;
Fig. 2 is general motor structural representation of tape insulation layer not between end cap and bearing holder (housing, cover);
Fig. 3 is the structural representation of the utility model motor with the insulation bearing cover.
Embodiment
As shown in Figure 3, the utility model motor insulation bearing cover is by bearing holder (housing, cover) 3 ' ", insulating barrier 7 and bearing outside 6 form.Insulating barrier 7 is made by composite insulating material, and is wrapped at bearing holder (housing, cover) 3 ' " on the outer face, be surrounded by the bearing holder (housing, cover) 3 ' of insulating barrier 7 " hot jacket on the inner face of bearing outside 6, make whole insulation bearing cover.In order to form the I-shaped shape in insulating barrier 7 outer ends, two edge insulating layers, 71 usefulness electricians form with the silicon rubber cast, form solid portion.After solidifying, bearing holder (housing, cover) overcoat 6, bearing holder (housing, cover) 3 ' " become the insulation bearing cover with insulating barrier 7.By bolt 4 that the insulation bearing cover is fixing with end cap 5.End cap is connected with support, and like this, bearing also just makes shaft current form to forming the loop between support, has improved the reliability of motor.
Insulating barrier 7 is made I-shaped shape, bearing holder (housing, cover) 3 ' " and the both ends of the surface of bearing outside 6 respectively be provided with a step, I-shaped insulating barrier 71 is embedded.Add man-hour once more when insulation bearing overlaps both ends of the surface, because two limits of " worker " font are longer, iron filings are difficult for entering bearing holder (housing, cover) 3 ' " and bearing outside 6 middle formation short circuits, the formation of shaft current effectively prevented.
The utility model is connected the insulation bearing cover with bolt with electric motor end cap, easier installation is quick detachable, easily makes.
Below embodiment has been described in detail the utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to the utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (5)
1. motor insulation bearing cover, it is characterized in that: it comprises a bearing holder (housing, cover) (3 " '), a wrapped insulating barrier (7) on bearing holder (housing, cover) (3 " ') outer face, and a bearing holder (housing, cover) that will be surrounded by insulating barrier (7) (3 " ') bearing outside (6) of hot jacket on its inner face.
2. require 1 described a kind of motor insulation bearing cover according to claim, it is characterized in that: described insulating barrier (7) is the I-shaped shape, and respectively be provided with a step at the described bearing holder (housing, cover) (3 " ') and the both ends of the surface of bearing outside (6), I-shaped insulating barrier both sides (71) are embedded.
3. require 2 described a kind of motor insulation bearing covers according to claim, it is characterized in that: two edge insulating layers (71) of described insulating barrier (7) I-shaped shape form with the silicon rubber cast with the electrician.
4. require 1 or 2 or 3 described a kind of motor insulation bearing covers according to claim, it is characterized in that: described insulating barrier (7) is to be made by composite insulating material.
5. require 4 described a kind of motor insulation bearing covers according to claim, it is characterized in that: described insulation bearing cover is to fix by the bolt (4) and the end cap (5) of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200775000U CN201142609Y (en) | 2007-12-28 | 2007-12-28 | Insulation bearing sleeve for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200775000U CN201142609Y (en) | 2007-12-28 | 2007-12-28 | Insulation bearing sleeve for electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201142609Y true CN201142609Y (en) | 2008-10-29 |
Family
ID=40070318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200775000U Expired - Fee Related CN201142609Y (en) | 2007-12-28 | 2007-12-28 | Insulation bearing sleeve for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201142609Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626181A (en) * | 2009-08-17 | 2010-01-13 | 南车株洲电力机车有限公司 | Method for manufacture insulating bearing housing of electric motor and insulating bearing housing |
| CN101783541A (en) * | 2010-02-26 | 2010-07-21 | 株洲敏锐轨道电气有限责任公司 | Insulating treatment method and device of bearings of transformer oil pump motor of electric locomotive |
| CN106655590A (en) * | 2017-01-16 | 2017-05-10 | 河北源兴科技发展有限公司 | Special insulating bearing sleeve |
-
2007
- 2007-12-28 CN CNU2007200775000U patent/CN201142609Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626181A (en) * | 2009-08-17 | 2010-01-13 | 南车株洲电力机车有限公司 | Method for manufacture insulating bearing housing of electric motor and insulating bearing housing |
| CN101626181B (en) * | 2009-08-17 | 2013-10-23 | 南车株洲电力机车有限公司 | Method for manufacture insulating bearing housing of electric motor and insulating bearing housing |
| CN101783541A (en) * | 2010-02-26 | 2010-07-21 | 株洲敏锐轨道电气有限责任公司 | Insulating treatment method and device of bearings of transformer oil pump motor of electric locomotive |
| CN106655590A (en) * | 2017-01-16 | 2017-05-10 | 河北源兴科技发展有限公司 | Special insulating bearing sleeve |
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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: 20081029 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |