CN104702038A - High-reliability insulated bearing fixing structure and method for disassembling and assembling the structure - Google Patents
High-reliability insulated bearing fixing structure and method for disassembling and assembling the structure Download PDFInfo
- Publication number
- CN104702038A CN104702038A CN201510131013.7A CN201510131013A CN104702038A CN 104702038 A CN104702038 A CN 104702038A CN 201510131013 A CN201510131013 A CN 201510131013A CN 104702038 A CN104702038 A CN 104702038A
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- CN
- China
- Prior art keywords
- bearing
- end cover
- small end
- cover
- mounting hole
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- 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.)
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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
- H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a high-reliability insulated bearing fixing structure and a method for disassembling and assembling the structure. The structure and the method can solve the problem that bearings are scrapped and potential risks are occurred because an existing insulated bearing installing and fixing structure is easy to damage insulating coatings at an outer bearing ring due to the structure defect during installing and disassembling processes. The high-reliability insulated bearing fixing structure is composed of an insulated bearing, an engine base, an external bearing cover, an inner sealing ring, an outer sealing ring, a big end cover and a small end cover; when the bearing fixing structure is assembled and disassembled, the insulated bearing is installed and disassembled by heating, and the insulating coatings at the outer bearing ring cannot be damaged, thus the service life of a motor is ensured and the potential risks cannot be occurred. The technical disadvantage that the insulating coating of the bearing is easy to damage and low in reliability in a traditional structure can be solved by the structure and the method.
Description
Technical field
The present invention relates to the Assembly And Disassembly technical field of motor, be specially a kind of insulation bearing fixed structure and assembly and disassembly methods thereof of high reliability.
Background technology
Motor provides equipment as a kind of power, can be that mechanical energy exports electric energy conversion, therefore be used widely in many industries.Motor is made up of two large basic element of character stators and rotators, and stator maintains static, and rotor rotates, and realizes this function and must rely on motor bearings at both ends, and bearing forms the indispensable part of electric machine structure, and bearing is once break down, and motor can only shut down.Motor is in operation process, bearing is originally in High Rotation Speed, due to the existence of motor shaft electric current, potential difference is there is between bearing enclose, often after the short time is run, cause bearing galvanic corrosion because the potential difference of bearing own produces electric discharge, burn out a bearing because frictional heat produces amount of heat when the bearing after galvanic corrosion runs up, make motor cisco unity malfunction.In order to head it off, Production of bearing producer plates the generation of insulating barrier partition shaft current at bearing outer ring, avoids bearing galvanic corrosion.But motor manufacturer is when assembly and disassembly motor, because insulation bearing fixed installation unreasonable structure causes bearing outer ring to collide with, local or all damage outer ring insulating coating, and any local damage of bearing outer ring insulating coating all cannot cut off the generation of shaft current, cause motor to run middle (center) bearing galvanic corrosion, substantially reduce motor useful life.The bearing that insulating coating damages can only be scrapped, and add cost, even if insulating coating does not damage, but through irrational installation and removal, insulating coating is also subject to artificial destruction, leaves potential safety hazard.
Summary of the invention
The object of the invention is to solve existing insulation bearing mount fixing structure due to its fault of construction, bearing outer ring insulating coating is easily damaged during the installation and removal existed, bearing is caused to scrap, produce security hidden trouble, and a kind of insulation bearing fixed structure and assembly and disassembly methods thereof of high reliability are provided.
The present invention is achieved through the following technical solutions:
A kind of insulation bearing fixed structure of high reliability, comprise insulation bearing, support, outer bearing cover, internal sealed ring and outer seal ring, also comprise large end cap and small end cover simultaneously, wherein, large end cap is arranged on support, small end cover is arranged on the center mounting hole of large end cap, be assemblied on rotor in the center mounting hole that insulation bearing is arranged on small end cover simultaneously, outer bearing cover is arranged on the center mounting hole outboard end of small end cover, the center mounting hole medial extremity that internal sealed ring is arranged on small end cover is assemblied on rotor simultaneously, the center mounting hole outboard end that outer seal ring is arranged on outer bearing cover is encapsulated on rotor outer end simultaneously.
The assembly and disassembly methods of the insulation bearing fixed structure of high reliability of the present invention is as follows:
1) assembling comprises the steps: a, large end cap is arranged on support; B, small end cover to be heated, afterwards insulation bearing is put into the center mounting hole of small end cover, owing to being add thermal expansion assembling, therefore insulation bearing outer ring insulating coating can not damage; C, internal sealed ring heating collar is contained on rotor, afterwards the small end cover being assembled with insulation bearing is heated again and insulation bearing is assemblied on rotor, internal sealed ring being arranged on the center mounting hole medial extremity of small end cover simultaneously; D, covering ring seal is contained on rotor outer end, outer seal ring is arranged on the center mounting hole outboard end of outer bearing cover simultaneously; E, small end cover is laterally assemblied on the center mounting hole of large end cap; Above-mentioned whole assembling process available protecting insulation bearing outer ring insulating coating.
2) dismounting comprises the steps: a, dismantles lower outside seal ring and outer bearing cover; B, rotor to be extracted out from large end cap and support together with small end cover, insulation bearing; C, heating small end cover, by small end cover together with insulation bearing from rotor dismounting under; D, small end cover heat small end cover separately after pulling down, and after small end cover adds thermal expansion, are taken out by insulation bearing from small end cover; Whole unloading process available protecting insulation bearing outer ring insulating coating.
After the insulation bearing fixed structure adopting high reliability of the present invention and assembly and disassembly methods thereof, efficiently solve the technology drawback that bearing insulation coating is easily damaged, reliability is low that traditional structure exists.By comparison, adopt the traction electric machine tool of technical solution of the present invention to have the following advantages: assemble and dismounting time, utilize heating installation and removal insulation bearing, insulation bearing outer ring insulating coating can not damage, and ensure that and motor useful life can not produce potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
In figure: 1-insulation bearing, 2-support, 3-outer bearing cover, 4-internal sealed ring, 5-outer seal ring, the large end cap of 6-, 7-small end cover, 8-rotor.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind of insulation bearing fixed structure of high reliability, comprise insulation bearing 1, support 2, outer bearing cover 3, internal sealed ring 4 and outer seal ring 5, also comprise large end cap 6 and small end cover 7 simultaneously, wherein, large end cap 6 is arranged on support 2, small end cover 7 is arranged on the center mounting hole of large end cap 6, be assemblied on rotor 8 in the center mounting hole that insulation bearing 1 is arranged on small end cover 7 simultaneously, outer bearing cover 3 is arranged on the center mounting hole outboard end of small end cover 7, the center mounting hole medial extremity that internal sealed ring 4 is arranged on small end cover 7 is assemblied on rotor 8 simultaneously, the center mounting hole outboard end that outer seal ring 5 is arranged on outer bearing cover 3 is encapsulated on rotor 8 outer end simultaneously.
The assembly and disassembly methods of the insulation bearing fixed structure of above-mentioned high reliability is as follows:
1) assembling comprises the steps: a, large end cap 6 is arranged on support 2; B, small end cover 7 to be heated, afterwards insulation bearing 1 is put into the center mounting hole of small end cover 7, owing to being add thermal expansion assembling, therefore insulation bearing 1 outer ring insulating coating can not damage; C, internal sealed ring 4 heating collar is contained on rotor 8, afterwards the small end cover 7 being assembled with insulation bearing 1 is again heated and is assemblied on rotor 8 by insulation bearing 1, internal sealed ring 4 being arranged on the center mounting hole medial extremity of small end cover 7 simultaneously; D, outer seal ring 5 is encapsulated on rotor 8 outer end, outer seal ring 5 is arranged on the center mounting hole outboard end of outer bearing cover 3 simultaneously; E, small end cover 7 is laterally assemblied on the center mounting hole of large end cap 6;
2) dismounting comprises the steps: a, dismantles lower outside seal ring 5 and outer bearing cover 3; B, rotor 8 to be extracted out from large end cap 6 and support 2 together with small end cover 7, insulation bearing 1; C, heating small end cover 7, by small end cover 7 together with insulation bearing 1 from rotor 8 dismantle under; After d, small end cover 7 are pulled down, heating small end cover 7, after small end cover 7 adds thermal expansion, takes out insulation bearing 1 from small end cover 7 separately.
Claims (2)
1. the insulation bearing fixed structure of a high reliability, comprise insulation bearing (1), support (2), outer bearing cover (3), internal sealed ring (4) and outer seal ring (5), it is characterized in that: also comprise large end cap (6) and small end cover (7), wherein, large end cap (6) is arranged on support (2), small end cover (7) is arranged on the center mounting hole of large end cap (6), be assemblied on rotor (8) in the center mounting hole that insulation bearing (1) is arranged on small end cover (7) simultaneously, outer bearing cover (3) is arranged on the center mounting hole outboard end of small end cover (7), the center mounting hole medial extremity that internal sealed ring (4) is arranged on small end cover (7) is assemblied on rotor (8) simultaneously, the center mounting hole outboard end that outer seal ring (5) is arranged on outer bearing cover (3) is encapsulated on rotor (8) outer end simultaneously.
2. the assembly and disassembly methods of the insulation bearing fixed structure of high reliability as claimed in claim 1, is characterized in that:
1) assembling comprises the steps: a, large end cap (6) is arranged on support (2); B, small end cover (7) heating, afterwards insulation bearing (1) is put into the center mounting hole of small end cover (7), due to be add thermal expansion assembling, therefore insulation bearing (1) outer ring insulating coating can not damage; C, internal sealed ring (4) heating collar is contained on rotor (8), afterwards the small end cover (7) being assembled with insulation bearing (1) heated again and insulation bearing (1) is assemblied on rotor (8), internal sealed ring (4) being arranged on the center mounting hole medial extremity of small end cover (7) simultaneously; D, outer seal ring (5) is encapsulated on rotor (8) outer end, outer seal ring (5) is arranged on the center mounting hole outboard end of outer bearing cover (3) simultaneously; E, small end cover (7) is laterally assemblied on the center mounting hole of large end cap (6);
2) dismounting comprises the steps: a, dismantles lower outside seal ring (5) and outer bearing cover (3); B, rotor (8) to be extracted out from large end cap (6) and support (2) together with small end cover (7), insulation bearing (1); C, heating small end cover (7), by small end cover (7) and insulation bearing (1) together under rotor (8) is dismantled; D, small end cover (7) heat separately small end cover (7) after pulling down, and after small end cover (7) adds thermal expansion, are taken out by insulation bearing (1) from small end cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131013.7A CN104702038A (en) | 2015-03-25 | 2015-03-25 | High-reliability insulated bearing fixing structure and method for disassembling and assembling the structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510131013.7A CN104702038A (en) | 2015-03-25 | 2015-03-25 | High-reliability insulated bearing fixing structure and method for disassembling and assembling the structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702038A true CN104702038A (en) | 2015-06-10 |
Family
ID=53348892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510131013.7A Pending CN104702038A (en) | 2015-03-25 | 2015-03-25 | High-reliability insulated bearing fixing structure and method for disassembling and assembling the structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104702038A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059227A (en) * | 2016-08-12 | 2016-10-26 | 中车永济电机有限公司 | Lightweight high-power asynchronous traction motor used for alternating current transmission guide rail tramcar |
| CN112713694A (en) * | 2020-12-25 | 2021-04-27 | 中车永济电机有限公司 | Non-transmission end bearing mounting structure of traction motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201266862Y (en) * | 2008-10-17 | 2009-07-01 | 永济新时速电机电器有限责任公司 | End cap device of DC motor |
| CN102394537A (en) * | 2011-12-20 | 2012-03-28 | 重庆赛力盟电机有限责任公司 | Vertical type assembly process of motor |
| CN202616916U (en) * | 2012-06-26 | 2012-12-19 | 东方电气（乐山）新能源设备有限公司 | Novel end cover insulation structure for wind driven generator |
| CN203104184U (en) * | 2013-03-13 | 2013-07-31 | 永济新时速电机电器有限责任公司 | Reinforced bearing chamber sealing structure of dumper generator |
| CN203434783U (en) * | 2013-09-09 | 2014-02-12 | 中达电机股份有限公司 | Bearing structure capable of eliminating shaft current |
| CN103746524A (en) * | 2014-01-14 | 2014-04-23 | 无锡欧瑞京机电有限公司 | Motor end cover and bearing assembling structure |
| CN204425089U (en) * | 2015-03-25 | 2015-06-24 | 永济新时速电机电器有限责任公司 | The insulation bearing fixed structure of high reliability |
-
2015
- 2015-03-25 CN CN201510131013.7A patent/CN104702038A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201266862Y (en) * | 2008-10-17 | 2009-07-01 | 永济新时速电机电器有限责任公司 | End cap device of DC motor |
| CN102394537A (en) * | 2011-12-20 | 2012-03-28 | 重庆赛力盟电机有限责任公司 | Vertical type assembly process of motor |
| CN202616916U (en) * | 2012-06-26 | 2012-12-19 | 东方电气（乐山）新能源设备有限公司 | Novel end cover insulation structure for wind driven generator |
| CN203104184U (en) * | 2013-03-13 | 2013-07-31 | 永济新时速电机电器有限责任公司 | Reinforced bearing chamber sealing structure of dumper generator |
| CN203434783U (en) * | 2013-09-09 | 2014-02-12 | 中达电机股份有限公司 | Bearing structure capable of eliminating shaft current |
| CN103746524A (en) * | 2014-01-14 | 2014-04-23 | 无锡欧瑞京机电有限公司 | Motor end cover and bearing assembling structure |
| CN204425089U (en) * | 2015-03-25 | 2015-06-24 | 永济新时速电机电器有限责任公司 | The insulation bearing fixed structure of high reliability |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059227A (en) * | 2016-08-12 | 2016-10-26 | 中车永济电机有限公司 | Lightweight high-power asynchronous traction motor used for alternating current transmission guide rail tramcar |
| CN112713694A (en) * | 2020-12-25 | 2021-04-27 | 中车永济电机有限公司 | Non-transmission end bearing mounting structure of traction motor |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Applicant after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Applicant before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |
|
| RJ01 | Rejection of invention patent application after publication |