CN106655590B - Special insulating bearing sleeve and processing technology thereof - Google Patents
Special insulating bearing sleeve and processing technology thereof Download PDFInfo
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- CN106655590B CN106655590B CN201710027559.7A CN201710027559A CN106655590B CN 106655590 B CN106655590 B CN 106655590B CN 201710027559 A CN201710027559 A CN 201710027559A CN 106655590 B CN106655590 B CN 106655590B
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- Prior art keywords
- sleeve
- insulating
- inner sleeve
- outer sleeve
- bearing
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a special insulating bearing sleeve and a processing technology thereof, comprising an inner sleeve and an outer sleeve, wherein the outer side of the inner sleeve is provided with the outer sleeve, an insulating filling layer is formed between the inner sleeve and the outer sleeve, the bearing sleeve is firstly divided into the inner sleeve and the outer sleeve, then the inner sleeve and the outer sleeve are cleaned, insulating paint is brushed on the joint surface of the inner sleeve, a layer of weftless tape is wound on the joint surface of the inner sleeve, and the bearing sleeve is placed in an oven for drying; combining the inner sleeve and the outer sleeve dried in the step S2, heating to a specified temperature, and pouring the insulating layer filler into the insulating filling layer through a pouring gate; and finally, placing the insulating bearing sleeve poured in the S3 into an oven for twice curing to enable the inner sleeve and the outer sleeve to be combined into a whole, cooling to the normal temperature along with the oven after curing is finished, and performing finish turning. This insulating bearing housing separates endotheca and overcoat through insulating filling layer, plays the effect of blocking axle current to the protection bearing prolongs the life of bearing.
Description
Technical Field
The invention belongs to the technical field of bearing sleeve equipment, and particularly relates to a special insulating bearing sleeve and a processing technology thereof.
Background
The bearing sleeve is an important part in a motor product, and the design structure and the manufacturing process level of the bearing sleeve have important influence on the technical grade, the performance, the operation reliability, the service life and the like of the motor product. At present, a bearing sleeve is generally an iron casting and a steel casting, but because a motor can generate shaft current in operation, the shaft current passes through a bearing and corrodes the bearing, so that the service life of the bearing is shortened.
Disclosure of Invention
The invention aims to provide a special insulating bearing sleeve and a processing technology thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the special insulating bearing sleeve comprises an inner sleeve and an outer sleeve, wherein the outer sleeve is arranged on the outer side of the inner sleeve, and an insulating filling layer is formed between the inner sleeve and the outer sleeve.
Preferably, the thickness of the insulating filling layer is 2-4 mm.
The invention also provides a processing technology of the special insulating bearing sleeve, which comprises the following specific steps:
s1, parting the bearing sleeve into an inner sleeve and an outer sleeve, processing technical rabbets on the inner sleeve and the outer sleeve, and processing anti-skid threads on the insulating joint surface;
s2, cleaning the inner sleeve and the outer sleeve, brushing insulating paint on the joint surface of the inner sleeve, winding a layer of weftless tape, and putting the inner sleeve and the outer sleeve into an oven to be dried at 130 ℃;
s3, combining the inner sleeve and the outer sleeve dried in the step S2 to form an insulating filling layer with a gap of 2-4mm, heating to a specified temperature, heating the insulating layer filling agent to be consistent with the temperature of the inner sleeve and the temperature of the outer sleeve, uniformly stirring, and pouring into the insulating filling layer through a pouring gate;
s4, putting the insulating bearing sleeve poured in the step S3 into an oven for heating and curing, firstly curing at a low temperature of 80 ℃ for 3 hours, then curing at a high temperature of 110 ℃ for 4 hours to integrate the inner sleeve and the outer sleeve with the insulating material, cooling to normal temperature along with the oven after curing is finished, and entering a finish turning machine;
s5, turning off the technological table and the technological seam allowance during finish turning, so that the inner sleeve and the outer sleeve are completely separated by the insulating layer.
Compared with the prior art, the invention has the beneficial effects that: the special insulating bearing sleeve separates the inner sleeve from the outer sleeve through the insulating filling layer to play a role in blocking shaft current, thereby protecting the bearing and prolonging the service life of the bearing; the special insulating bearing sleeve has the advantages of reasonable structural design, simplicity in processing, convenience, practicability and the like, can greatly prolong the service life of a bearing, and can be widely popularized and used.
Drawings
FIG. 1 is one of the cross-sectional views of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a schematic structural diagram of the present invention.
In the figure, 1 is an inner sleeve, 3 is an outer sleeve, and 2 is an insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: the invention provides a special insulating bearing sleeve as shown in figures 1-2, which comprises an inner sleeve 1 and an outer sleeve 3, wherein the outer side of the inner sleeve 1 is provided with the outer sleeve 3, an insulating filling layer 2 is formed between the inner sleeve 1 and the outer sleeve 3, and the thickness of the insulating filling layer 2 is 2-4 mm.
Example 2: the invention provides a special insulating bearing sleeve as shown in figure 3, which comprises an inner sleeve 1 and an outer sleeve 3, wherein the outer sleeve 3 is arranged on the outer side of the inner sleeve 1, an insulating filling layer 2 is formed between the inner sleeve 1 and the outer sleeve 3, and the thickness of the insulating filling layer 2 is 2-4 mm.
The invention also provides a processing technology of the special insulating bearing sleeve, which comprises the following specific steps:
s1, parting the bearing sleeve into an inner sleeve 1 and an outer sleeve 3, processing technical rabbets on the inner sleeve 1 and the outer sleeve 3, and processing anti-skid threads on the insulating joint surface;
s2, cleaning the inner sleeve and the outer sleeve, brushing insulating paint on the joint surface of the inner sleeve 1, winding a layer of weftless tape, and putting the inner sleeve and the outer sleeve into an oven to be dried at 130 ℃;
s3, combining the inner sleeve 1 and the outer sleeve 3 dried in the step S2 to form an insulating filling layer 2 with a gap of 2-4mm, heating to a specified temperature, heating the insulating layer filler to be consistent with the temperature of the inner sleeve 1 and the temperature of the outer sleeve 3, uniformly stirring, and pouring into the insulating filling layer 2 through a pouring gate;
s4, putting the insulating bearing sleeve poured in the step S3 into an oven for heating and curing, firstly curing at a low temperature of 80 ℃ for 3 hours, then curing at a high temperature of 110 ℃ for 4 hours to integrate the inner sleeve and the outer sleeve with the insulating material, cooling to normal temperature along with the oven after curing is finished, and entering a finish turning machine;
s5, turning off the technological table and the technological seam allowance during finish turning, so that the inner sleeve and the outer sleeve are completely separated by the insulating layer.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (1)
1. A processing technology of an insulating bearing sleeve is characterized in that: the method comprises the following specific steps:
s1, parting the bearing sleeve into an inner sleeve (1) and an outer sleeve (3), machining technical rabbets on the inner sleeve (1) and the outer sleeve (3), and machining anti-skid threads on the insulating joint surface;
s2, cleaning the inner sleeve and the outer sleeve, brushing insulating paint on the joint surface of the inner sleeve (1), winding a layer of non-woven tape, and putting the tape into an oven to dry at 130 ℃;
s3, combining the inner sleeve (1) and the outer sleeve (3) dried in the step S2 to form an insulating filling layer (2) with a gap of 2-4mm, heating to a specified temperature, heating the insulating layer filler to be consistent with the temperature of the inner sleeve (1) and the temperature of the outer sleeve (3), uniformly stirring, and pouring into the insulating filling layer (2) through a pouring gate;
s4, putting the insulating bearing sleeve poured in the step S3 into an oven for heating and curing, firstly curing at a low temperature of 80 ℃ for 3 hours, then curing at a high temperature of 110 ℃ for 4 hours to integrate the inner sleeve and the outer sleeve with the insulating material, cooling to normal temperature along with the oven after curing is finished, and entering a finish turning machine;
s5, turning off the technological table and the technological seam allowance during finish turning, so that the inner sleeve and the outer sleeve are completely separated by the insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027559.7A CN106655590B (en) | 2017-01-16 | 2017-01-16 | Special insulating bearing sleeve and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027559.7A CN106655590B (en) | 2017-01-16 | 2017-01-16 | Special insulating bearing sleeve and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106655590A CN106655590A (en) | 2017-05-10 |
| CN106655590B true CN106655590B (en) | 2020-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710027559.7A Active CN106655590B (en) | 2017-01-16 | 2017-01-16 | Special insulating bearing sleeve and processing technology thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN106655590B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2722547A1 (en) * | 2012-10-22 | 2014-04-23 | General Electric Company | Insulated bearing ring |
| CN105281478A (en) * | 2014-07-22 | 2016-01-27 | 抚顺煤矿电机制造有限责任公司 | Bearing insulation structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142609Y (en) * | 2007-12-28 | 2008-10-29 | 上海南洋电机有限公司 | Insulation bearing sleeve for electric motor |
| WO2011019136A2 (en) * | 2009-08-12 | 2011-02-17 | Son Won Joong | Electrical insulation apparatus for a bearing |
| 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 |
| CN103607065B (en) * | 2013-11-25 | 2016-02-03 | 南车株洲电机有限公司 | The manufacture method of bearing insulation device, bearing insulation device, and variable-frequency motor |
| CN204349663U (en) * | 2015-01-30 | 2015-05-20 | 温州市龙电绝缘材料有限公司 | Insulated bearing sleeve used for motor |
-
2017
- 2017-01-16 CN CN201710027559.7A patent/CN106655590B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2722547A1 (en) * | 2012-10-22 | 2014-04-23 | General Electric Company | Insulated bearing ring |
| CN105281478A (en) * | 2014-07-22 | 2016-01-27 | 抚顺煤矿电机制造有限责任公司 | Bearing insulation structure |
Non-Patent Citations (1)
| Title |
|---|
| 能防止轴电流的电机轴承;文斌等;《电机技术》;20150425(第02期);58、60 * |
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| Publication number | Publication date |
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| CN106655590A (en) | 2017-05-10 |
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