CN201789360U - Bearing bush preventing shaft current - Google Patents
Bearing bush preventing shaft current Download PDFInfo
- Publication number
- CN201789360U CN201789360U CN2010202641958U CN201020264195U CN201789360U CN 201789360 U CN201789360 U CN 201789360U CN 2010202641958 U CN2010202641958 U CN 2010202641958U CN 201020264195 U CN201020264195 U CN 201020264195U CN 201789360 U CN201789360 U CN 201789360U
- Authority
- CN
- China
- Prior art keywords
- bearing
- cover
- shaft current
- insulating
- bearing bush
- 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
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Abstract
The utility model relates to a bearing bush preventing shaft current, which is capable of preventing shaft current from being generated to burn a spindle and a bearing to affect unit running when a small-sized water wheel generator runs. The bearing bush preventing the shaft current comprises a nut, a bolt, a bearing outer cover, a bearing inner cover and an end cover, a screw insulating sleeve and an insulating washer are sleeved outside the bolt, the nut is sleeved on the bolt, an insulating bearing bush is mounted between the end cover and a bearing, a bearing bush insulating washer is mounted between the insulating bearing bush and the end cover, and an insulating washer is mounted between the insulating bearing bush and the bearing outer cover. The bearing bush has the advantages of capabilities of effectively cutting off a loop forming the shaft current and preventing the shaft current, damage of the spindle and the bearing and affection on safety running of a unit, convenience for installation and maintenance, low cost and simple structure.
Description
Technical field
The utility model relates to small hydro turbine in the running, can prevent that the shaft current that produces from burning out main shaft and bearing, influences the anti-shaft current bearing holder (housing, cover) of unit operation.
Background technology
Hydraulic generator is when operation, and main shaft all will be in the asymmetric pulsating field inevitably and turn round.During main axis rotation, will with the alternating flux institute interlinkage in this dissymmetrical magnetic field, in main shaft, induce electromotive force, and form the loop by main shaft, bearing, end cap, support, produce shaft current, burn out main shaft and bearing, influence unit safety operation.
Summary of the invention
The purpose of this utility model burns out the bearing holder (housing, cover) of main shaft and bearing with regard to providing a kind of shaft current that produces that can prevent.
Main technical schemes of the present utility model is as follows:
A kind of anti-shaft current bearing holder (housing, cover) comprises nut, bolt, bearing end cover, internal bearing cover and end cap.Bolt is with screw rod insulating case and insulating washer outward, and nut sleeve is on bolt; Insulation bearing is sleeved between end cap and the bearing and between insulation bearing cover and end cap the bearing holder (housing, cover) insulating washer is housed; Between insulation bearing cover and the bearing end cover insulating washer is housed.
Insulating case is made of overcoat and interior cover, between interior overcoat heat around the epoxy grey cloth, the end face of overcoat with in apply mechanically the epoxy fabric swatch and separate.
The utlity model has and can cut off the loop that forms shaft current effectively, prevent to produce shaft current, damage main shaft, bearing, influence the beneficial effect of unit safety operation, and the utlity model has installation, maintenance conveniently, cost is low, characteristic of simple structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model insulation bearing cover.
Embodiment
As shown in the figure, a kind of anti-shaft current bearing holder (housing, cover) comprises nut, bolt, bearing end cover, internal bearing cover and end cap, is with screw rod insulating case 5 and insulating washer 4 outside the bolt 1, and nut 2 is enclosed within on the bolt 1.Insulation bearing cover 6 is contained between end cap 14 and the bearing 10 and between insulation bearing cover 6 and end cap 14 bearing holder (housing, cover) insulating washer 12 is housed; Between insulation bearing cover 6 and the bearing end cover 8 insulating washer 7 and 11 are housed.Insulating case 5 is made of overcoat 15 and interior cover 18, and heat is around epoxy grey cloth 16 between interior overcoat, and the end face of overcoat 15 and interior cover 18 usefulness epoxy fabric swatch 17 separate.Thereby keep insulation in making between cover 18 and the overcoat 15.
Bolt 1 overcoat screw rod insulating case 5 and insulating washer 4, end cap 14 and bearing holder (housing, cover) 6 cushioning insulating washers 12, the link circuit that has cut off main shaft, bearing 10, insulation bearing cover 6, screw rod 1 and end cap 14, conduction ring seat 13; Bearing 10, bearing holder (housing, cover) 6 and bearing end cover 8 cushioning insulating washers 7, insulating washer 11 have cut off bearing 10, bearing end cover 8 by the link circuit of overcoat 15 with end cap 14.Thereby thoroughly cut off main shaft, bearing is connected with end cap, support, does not form the loop, shaft current just can't form, and prolongs bearing useful life, makes unit safe and reliable operation more.
The utility model cost is low, maintenance, installs very conveniently, and the power station operational effect clearly.
Claims (2)
1. an anti-shaft current bearing holder (housing, cover) comprises nut, bolt, bearing end cover, internal bearing cover and end cap, it is characterized in that: bolt (1) is outer to be with screw rod insulating case (5) and insulating washer (4), and nut (2) is enclosed within on the bolt (1); Insulation bearing cover (6) is contained between end cap (14) and the bearing (10) and between insulation bearing cover (6) and end cap (14) bearing holder (housing, cover) insulating washer (12) is housed; Between insulation bearing cover (6) and the bearing end cover (8) insulating washer (7) and (11) are housed.
2. a kind of anti-shaft current bearing holder (housing, cover) as claimed in claim 1, it is characterized in that: insulating case (5) is made of overcoat (15) and interior cover (18), heat is around epoxy grey cloth (16) between interior overcoat, and the end face of overcoat (15) and interior cover (18) separate with epoxy fabric swatch (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202641958U CN201789360U (en) | 2010-11-17 | 2010-11-17 | Bearing bush preventing shaft current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202641958U CN201789360U (en) | 2010-11-17 | 2010-11-17 | Bearing bush preventing shaft current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789360U true CN201789360U (en) | 2011-04-06 |
Family
ID=43821310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202641958U Expired - Fee Related CN201789360U (en) | 2010-11-17 | 2010-11-17 | Bearing bush preventing shaft current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789360U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684358A (en) * | 2012-05-23 | 2012-09-19 | 东方电气集团东风电机有限公司 | Structure of drive motor for preventing shaft current |
| CN103178636A (en) * | 2011-12-22 | 2013-06-26 | 襄阳南车电机技术有限公司 | Non-transmission-end insulating end cover of steel rail grinding wagon electric motor |
| CN103290792B (en) * | 2012-02-22 | 2016-08-24 | 陈建国 | Intelligence swing warner |
| US9590468B2 (en) | 2012-10-08 | 2017-03-07 | Exro Technologies Inc. | Electrical machines such as generators and motors |
| WO2022088438A1 (en) * | 2020-10-29 | 2022-05-05 | 中车株洲电机有限公司 | Mining dump truck with electric wheels, and traction electric motor thereof |
-
2010
- 2010-11-17 CN CN2010202641958U patent/CN201789360U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178636A (en) * | 2011-12-22 | 2013-06-26 | 襄阳南车电机技术有限公司 | Non-transmission-end insulating end cover of steel rail grinding wagon electric motor |
| CN103290792B (en) * | 2012-02-22 | 2016-08-24 | 陈建国 | Intelligence swing warner |
| CN102684358A (en) * | 2012-05-23 | 2012-09-19 | 东方电气集团东风电机有限公司 | Structure of drive motor for preventing shaft current |
| US9590468B2 (en) | 2012-10-08 | 2017-03-07 | Exro Technologies Inc. | Electrical machines such as generators and motors |
| WO2022088438A1 (en) * | 2020-10-29 | 2022-05-05 | 中车株洲电机有限公司 | Mining dump truck with electric wheels, and traction electric motor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20131117 |