CN202475096U - Three-in-one insulating end cover structure - Google Patents
Three-in-one insulating end cover structure Download PDFInfo
- Publication number
- CN202475096U CN202475096U CN2011205542662U CN201120554266U CN202475096U CN 202475096 U CN202475096 U CN 202475096U CN 2011205542662 U CN2011205542662 U CN 2011205542662U CN 201120554266 U CN201120554266 U CN 201120554266U CN 202475096 U CN202475096 U CN 202475096U
- Authority
- CN
- China
- Prior art keywords
- insulating
- end cover
- sleeve
- cover structure
- insulating case
- 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
Images
Landscapes
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to a three-in-one insulating end cover structure, being characterized by comprising a bearing block, an insulating sleeve which is fastened on the outer circular surface of the bearing block, a connecting sleeve which is fastened on the insulating sleeve, and an insulating plate which is arranged between the end surface of the connecting sleeve and the end surface of the bearing block, wherein the insulating sleeve is an opening sleeve, and is moulded by bending an epoxy-phenol sandwich glass fabric swatch; the insulating sleeve is fixed on the bearing block by means of mucilage glue; the bearing block, the insulating plate and the connecting sleeve can be fixedly connected through bolts detachably; the end cover structure thoroughly disconnects the current loop formed by a motor base, and an end cover, a bearing and a shaft, by the insulating sleeve and the insulating plate arranged between the bearing block and the connecting sleeve, thus avoiding generation of the shaft current. Compared with an insulating bearing structure, the three-in-one insulating end cover structure has the advantages of being low in production cost, being convenient for mounting and maintenance, and significantly improving the insulating property; and compared with the structure which adds a layer of polyimide film in the end cover, the three-in-one insulating end cover structure has the advantages of being compact in structure, being difficult to damage, being long in service life, and being safe and reliable.
Description
Technical field
The utility model relates to the end cover structure of motor, particularly a kind of trisome formula insulated end cover structure.
Background technology
Along with the development of converter technique, low-pressure high-power adjustable frequency motor technology is able to development and extensive use.Find that in practical application the bearing of motor fault happens occasionally, when analyzing bearing fault, find to have on the bearing race vestige of electric shock, find through motor electromagnetism theory and experiment; The high-power frequency conversion motor is because the influence of factor such as harmonic wave, at motor bed-plate, and end cap; Find to have electric current to exist in the loop of bearing and axle formation; Be called shaft current, electric spark takes place in shaft current easily between bearing roller and raceway, thus the infringement bearing.For avoiding shaft current to produce, abroad some producers have developed insulation bearing, but the insulation bearing price is very expensive, and installation and maintenance cost are also higher, and in addition, insulation bearing can not be avoided the generation of shaft current fully; The measure of domestic normal employing is to add one deck polyimide film in end cap inside, forms insulating barrier, and this structure is installed inconvenience on the one hand, damages insulating barrier easily, and insulating barrier is thinner on the other hand, piles up dust easily, makes failure of insulation.
Summary of the invention
The technical problem that exists in the known technology provides a kind of low cost to the utility model, installation and maintenance is convenient, insulation is reliable, avoid shaft current to produce in order to solve, thereby improves the bearing trisome formula insulated end cover structure in useful life.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of trisome formula insulated end cover structure is characterized in that: by bearing pedestal, be fastened on insulating case on the bearing pedestal periphery, be fastened on the adapter sleeve on the insulating case and be installed in the adapter sleeve end face and the bearing pedestal end face between insulation board constitute; Said insulating case is an opening sleeve, by the epoxy phenolic laminated glass fabric plate bending and molding; Said insulating case is fixed on the bearing pedestal through viscose glue; Said bearing pedestal, insulation board and adapter sleeve are connected through screw is detachable.
The technical scheme that the utility model can also adopt is:
Said insulating case is a double-decker, and thickness in monolayer is 0.5mm, and two-layer opening portion staggers.
The two-layer opening portion of said insulating case is 180 ° of distributions.
Said insulation board is by epoxy phenolic laminated glass fabric plate machine-shaping.
Advantage and the good effect that the utlity model has are:
Above-mentioned end cover structure makes support through being located at insulating case and the insulation board between bearing pedestal and the adapter sleeve, end cap, and bearing thoroughly breaks off with the loop that axle forms, and has avoided the generation of shaft current.This structure is than the insulation bearing structure, and it is low to have cost of manufacture, and installation and maintenance is characteristics easily, and insulation property also improve greatly; This structure has compact conformation than the structure that adds one deck polyimide film in end cap inside, and is not fragile, long service life, safe and reliable characteristics.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the partial enlarged drawing among Fig. 1;
Fig. 3 is that insulating case is double-deck sketch map among Fig. 1.
Among the figure: 1, bearing pedestal; 2, insulating case; Cover in 2-1, the insulation; 2-2, insulating coating; 3, adapter sleeve; 4, insulation board.
Embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1-3, a kind of trisome formula insulated end cover structure, by bearing pedestal 1, be fastened on insulating case 2 on the bearing pedestal periphery, be fastened on the adapter sleeve 3 on the insulating case and be installed in the adapter sleeve end face and the bearing pedestal end face between insulation board 4 constitute.Said insulating case is an opening sleeve, by the epoxy phenolic laminated glass fabric plate bending and molding.Said insulating case is fixed on the bearing pedestal through viscose glue.Said bearing pedestal, insulation board and adapter sleeve are connected through screw is detachable.
Above-mentioned insulating case can adopt the single or multiple lift structure.From the buckling performance of epoxy phenolic laminated glass fabric plate material with satisfy insulating requirements two aspects and consider; Insulating case is preferably double-decker; Constitute with hugging by cover 2-1 in the insulation at its outside insulating coating 2-2; Wherein thickness in monolayer is 0.5mm, and the insulating case gross thickness is 1 mm, and the opening portion of cover and insulating coating staggers in the insulation when mounted.For above-mentioned interior overcoat is more closely held tightly on bearing pedestal, the two-layer opening portion of insulating case is preferably and is 180 ° of distributions.
Above-mentioned insulation board can be made by general commonly used insulating material and form, in the utility model preferably by epoxy phenolic laminated glass fabric plate machine-shaping.
The forming process of above-mentioned end cover structure is:
At first the machining bearing seat is to compact dimensions, and the endoporus of roughing adapter sleeve and outline are cut out epoxy phenolic laminated glass fabric plate consistent with the insulating case deployed configuration and processing insulation board.When insulating case adopts double-decker, cut out two consistent epoxy phenolic laminated glass fabric plates of deployed configuration made from interior cover of insulation and insulating coating respectively; Then the epoxy phenolic laminated glass fabric plate bending is coated on the periphery of bearing pedestal, fixes with viscose glue between the two.When insulating case adopts double-decker; To be coated on the periphery of bearing pedestal with the corresponding epoxy phenolic laminated glass fabric plate bending of cover in the insulation earlier; Epoxy phenolic laminated glass fabric plate bending newspaper that then will be corresponding with insulating coating is coated in the insulation and puts, and the opening portion of two-layer insulating case will stagger; After insulating case is coated on the bearing pedestal, with fixture insulating case is fixed on bearing pedestal, place then more than 4 hours, make the two bonding firmly; After insulating case cements on the bearing pedestal; Unload fixture; Measure the outside diameter value of insulating case with survey tool; According to the endoporus of this diameter value fine finishining adapter sleeve, then insulation board and adapter sleeve successively are sleeved on the insulating case, with screw adapter sleeve, insulation board and bearing pedestal are solidly installed; The outline of the last whole end cover structure of fine finishining is to design size.
Claims (4)
1. trisome formula insulated end cover structure is characterized in that: by bearing pedestal, be fastened on insulating case on the bearing pedestal periphery, be fastened on the adapter sleeve on the insulating case and be installed in the adapter sleeve end face and the bearing pedestal end face between insulation board constitute; Said insulating case is an opening sleeve, by the epoxy phenolic laminated glass fabric plate bending and molding; Said insulating case is fixed on the bearing pedestal through viscose glue; Said bearing pedestal, insulation board and adapter sleeve are connected through screw is detachable.
2. according to the said trisome formula of claim 1 insulated end cover structure, it is characterized in that: said insulating case is a double-decker, and thickness in monolayer is 0.5mm, and two-layer opening portion staggers.
3. according to the said trisome formula of claim 2 insulated end cover structure, it is characterized in that: the two-layer opening portion of said insulating case is 180 ° of distributions.
4. according to the arbitrary said trisome formula insulated end cover structure of claim 1-3, it is characterized in that: said insulation board is by epoxy phenolic laminated glass fabric plate machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205542662U CN202475096U (en) | 2011-12-27 | 2011-12-27 | Three-in-one insulating end cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205542662U CN202475096U (en) | 2011-12-27 | 2011-12-27 | Three-in-one insulating end cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475096U true CN202475096U (en) | 2012-10-03 |
Family
ID=46923219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205542662U Expired - Fee Related CN202475096U (en) | 2011-12-27 | 2011-12-27 | Three-in-one insulating end cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475096U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516100A (en) * | 2013-10-09 | 2014-01-15 | 中达电机股份有限公司 | Insulation end cap |
| CN111917220A (en) * | 2020-08-10 | 2020-11-10 | 淄博智科电气科技有限公司 | End cover insulation device of permanent magnet synchronous motor |
-
2011
- 2011-12-27 CN CN2011205542662U patent/CN202475096U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516100A (en) * | 2013-10-09 | 2014-01-15 | 中达电机股份有限公司 | Insulation end cap |
| CN103516100B (en) * | 2013-10-09 | 2015-08-26 | 中达电机股份有限公司 | A kind of insulated end cover |
| CN111917220A (en) * | 2020-08-10 | 2020-11-10 | 淄博智科电气科技有限公司 | End cover insulation device of permanent magnet synchronous motor |
| CN111917220B (en) * | 2020-08-10 | 2022-06-24 | 淄博智科电气科技有限公司 | End cover insulation device of permanent magnet synchronous motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102222568B (en) | Aluminium electrolytic capacitor specially used in LED driving power supply and manufacturing method thereof | |
| CN102222569A (en) | Long-life aluminum electrolytic capacitor and manufacturing method thereof | |
| CN202475096U (en) | Three-in-one insulating end cover structure | |
| CN201549997U (en) | Double squirrel cage rotor structure | |
| CN203434783U (en) | Bearing structure capable of eliminating shaft current | |
| CN205401533U (en) | Stator structure and electromagnetic braking ware of stopper | |
| CN103457392A (en) | Bearing structure capable of removing shaft currents | |
| CN103671554A (en) | Insulation rolling bearing | |
| CN201667262U (en) | Polyamide-imide composite board | |
| CN103151669B (en) | A kind of highly reliable Power Slip-ring | |
| CN201570358U (en) | Insulating cylinder fixing device for dry-type transformer | |
| CN202308005U (en) | Graphite boat | |
| CN201936727U (en) | Composite dry-type wall bushing | |
| CN201278294Y (en) | Insulation end ring for transformer | |
| CN205248925U (en) | Structure of motor stator | |
| CN201369225Y (en) | Iron yoke insulation structure of transformer | |
| CN219086898U (en) | Motor stator assembly structure | |
| CN202374090U (en) | Non-driving-end insulated cover of electric motor of rail grinding wagon | |
| CN205681271U (en) | Ceiling-fan motor | |
| CN202918072U (en) | Novel stator assembly and external rotor motor using the same | |
| CN204392040U (en) | External rotor electric machine | |
| CN202816613U (en) | Insulation structure of transformer | |
| CN202840195U (en) | Carbon brush contact system | |
| CN201533206U (en) | Micro-control electric motor lead wire framework | |
| CN202872521U (en) | Motor brush fixing structure |
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: 20121003 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |