CN106685130A - Insulation structure for reducing shaft current of non-driving extension end of motor - Google Patents
Insulation structure for reducing shaft current of non-driving extension end of motor Download PDFInfo
- Publication number
- CN106685130A CN106685130A CN201710047459.0A CN201710047459A CN106685130A CN 106685130 A CN106685130 A CN 106685130A CN 201710047459 A CN201710047459 A CN 201710047459A CN 106685130 A CN106685130 A CN 106685130A
- Authority
- CN
- China
- Prior art keywords
- bearing
- cover
- insulation
- shaft
- shaft current
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 50
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004519 grease Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
-
- 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
- H02K5/08—Insulating casings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses an insulation structure for reducing shaft current of a non-driving extension end of a motor, which comprises a shaft, a bearing and an end cover. The bearing is provided between the end cover and the shaft. An inner bearing cover and an outer bearing cover are respectively arranged on both sides of the bearing, and the outer bearing cover is arranged outside the non-driving extension end of the shaft. A bearing sleeve which is arranged outside the bearing is provided between the inner bearing cover and the outer bearing cover. An insulation sleeve is provided between the bearing sleeve and the end cover, wherein insulation plates are arranged on both sides of the end cover. The insulation structure for reducing the shaft current of the non-driving extension end of the motor is isolated by the insulation plate and the insulation sleeve on surfaces connected with the end cover. The insulation structure for reducing the shaft current of the non-driving extension end of the motor has the advantages of preventing the shaft current from damaging the bearing, avoiding the electric current corrosion of the induction current to the bearing, preventing the damage of the current to lubricating grease, a rolling body and a raceway, and improving the service life of the bearing. The insulation structure for reducing the shaft current of the non-driving extension end of the motor also has the advantages of low manufacturing cost and convenient assembly and disassembly, which are beneficial to the maintenance of the bearing.
Description
Technical field
The invention belongs to motor manufacturing technology, more particularly, to a kind of insulation knot of reduction motor non-shaft stretching end shaft current
Structure.
Background technology
In the design process of motor, in order to reduce the shaft current of motor non-shaft stretching end, typically will add in non-shaft stretching end
Dress insulation system.At present conventional insulation system is to install insulation bearing additional, but insulation bearing is expensive, is general bearing valency
20 times or so of lattice；Market resource is few, and delivery cycle is long, meets emergency and changes more difficult；And in Assembly And Disassembly process
In easily coating is drawn into bad, be unfavorable for bearing maintenance maintain.
The content of the invention
It is an object of the invention to provide a kind of insulation system for reducing motor non-shaft stretching end shaft current, it has low cost
The characteristics of good with insulation effect, to solve prior art in motor non-shaft stretching end reduced using insulation bearing shaft current presence
The problems referred to above.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of insulation system for reducing motor non-shaft stretching end shaft current, it includes axle, bearing and end cap, the end cap and institute
State and be provided between axle bearing, the both sides of the bearing are separately installed with internal bearing cover and bearing end cover, and the bearing end cover sets
It is placed in outside the non-shaft stretching end of the axle, wherein, it is provided with bearing outside the bearing between the internal bearing cover and bearing end cover
Set, is arranged at insulation sleeve between the bearing holder (housing, cover) and the end cap, the both sides of the end cap are provided with insulation board.
Especially, the internal bearing cover, bearing end cover are fixedly connected with end cap by fixing bolt, outside the fixing bolt
It is cased with insulation tube.
Especially, the section of the bearing holder (housing, cover) is T-shape structure, and correspondence offers logical on the bearing holder (housing, cover) and insulation board
Hole, the fixing bolt is arranged through the bearing holder (housing, cover) and insulation board.
Especially, external diameter identical stage portion, the axle are correspondingly arranged on the inside of the internal bearing cover and bearing end cover
The lateral wall held is in the same plane with the step surface of the stage portion, and the bearing holder (housing, cover) is arranged in the stage portion.
Beneficial effects of the present invention are, compared with prior art the insulation system for reducing motor non-shaft stretching end shaft current
All it is isolated with insulation board, insulation sleeve on the face being connected with end cap, fixing bolt is got up with insulative pipe sleeve, thus makes bearing
Insulate between end cap, with insulation bearing same effect is reached.Prevent shaft current from damaging bearing, it is to avoid faradic current is to bearing
Galvanic action, the damage for preventing electric current from causing to grease and rolling element, raceway, improve bearing service life.It is manufactured into
This is low, and Assembly And Disassembly is convenient, is conducive to the maintenance of bearing.
Description of the drawings
Fig. 1 is the structure of the insulation system of the reduction motor non-shaft stretching end shaft current that the specific embodiment of the invention 1 is provided
Schematic diagram.
In figure：
1st, axle；2nd, bearing；3rd, end cap；4th, internal bearing cover；5th, bearing end cover；6th, stage portion；7th, bearing holder (housing, cover)；8th, insulation sleeve；
9th, insulation board；10th, fixing bolt；11st, insulation tube.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
Refer to shown in Fig. 1, Fig. 1 is the reduction motor non-shaft stretching end shaft current that the specific embodiment of the invention 1 is provided
The structural representation of insulation system.
In the present embodiment, a kind of insulation system for reducing motor non-shaft stretching end shaft current includes axle 1, bearing 2 and end cap 3,
Bearing 2 is provided between the end cap 3 and the axle 1, the both sides of the bearing 2 are separately installed with outside internal bearing cover 4 and bearing
Lid 5, the bearing end cover 5 is arranged at outside the non-shaft stretching end of the axle 1, and the inner side of the internal bearing cover 4 and bearing end cover 5 is right
External diameter identical stage portion 6 should be provided with, the lateral wall of the bearing 2 is in same plane with the step surface of the stage portion 6
On, bearing holder (housing, cover) 7 is cased with the stage portion 6 of the internal bearing cover 4 and bearing end cover 5, the section of the bearing holder (housing, cover) 7 is T-shape knot
Structure, it is arranged at insulation sleeve 8 between the end cap 3, is respectively provided between the end cap 3 and the internal bearing cover 4 and insulation sleeve 8
In insulation board 9.
Correspondence offers through hole, the internal bearing cover on the bearing end cover 5,7, two insulation boards 9 of bearing holder (housing, cover) and end cap 4
Offer screwed hole on 4, fixing bolt 10 sequentially passes through bearing end cover 5, bearing holder (housing, cover) 7, one of insulation board 9, end cap 4 and another
One insulation board 9 is lock onto in the screwed hole on internal bearing cover 4, and outside the fixing bolt 10 insulation tube 11 is arranged with.
Above example simply elaborates the ultimate principle and characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and change both fall within
In scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent thereof.
Claims (4)
1. a kind of insulation system for reducing motor non-shaft stretching end shaft current, it includes axle, bearing and end cap, the end cap with it is described
Bearing is provided between axle, the both sides of the bearing are separately installed with internal bearing cover and bearing end cover, and the bearing end cover is arranged
Outside the non-shaft stretching end of the axle, it is characterised in that be provided with outside the bearing between the internal bearing cover and bearing end cover
Bearing holder (housing, cover), is arranged at insulation sleeve between the bearing holder (housing, cover) and the end cap, the both sides of the end cap are provided with insulation board.
2. it is according to claim 1 reduce motor non-shaft stretching end shaft current insulation system, it is characterised in that the bearing
Inner cap, bearing end cover are fixedly connected with end cap by fixing bolt, and outside the fixing bolt insulation tube is cased with.
3. it is according to claim 2 reduce motor non-shaft stretching end shaft current insulation system, it is characterised in that the bearing
The section of set is T-shape structure, and correspondence offers through hole on the bearing holder (housing, cover) and insulation board, and the fixing bolt passes through the axle
Bearing sleeve and insulation board are arranged.
4. it is according to claim 1 reduce motor non-shaft stretching end shaft current insulation system, it is characterised in that the bearing
External diameter identical stage portion, the lateral wall of the bearing and the stage portion are correspondingly arranged on the inside of inner cap and bearing end cover
Step surface is in the same plane, and the bearing holder (housing, cover) is arranged in the stage portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047459.0A CN106685130A (en) | 2017-01-22 | 2017-01-22 | Insulation structure for reducing shaft current of non-driving extension end of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047459.0A CN106685130A (en) | 2017-01-22 | 2017-01-22 | Insulation structure for reducing shaft current of non-driving extension end of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685130A true CN106685130A (en) | 2017-05-17 |
Family
ID=58860657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047459.0A Pending CN106685130A (en) | 2017-01-22 | 2017-01-22 | Insulation structure for reducing shaft current of non-driving extension end of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936239A (en) * | 2019-04-26 | 2019-06-25 | 南通森玛特电机有限公司 | A kind of non-shaft stretching end on motor bearings |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH196445A (en) * | 1936-07-13 | 1938-03-15 | Siemens Ag | Noise and current insulated rolling bearings for electrical machines. |
| CN201238230Y (en) * | 2008-07-31 | 2009-05-13 | 上海电科电机科技有限公司 | Shaft current-proof structure used for medium-large electric motor rolling bearing |
| CN201388100Y (en) * | 2009-03-23 | 2010-01-20 | 中船重工电机科技股份有限公司 | Motor bearing seat insulation structure |
| CN201403016Y (en) * | 2009-04-17 | 2010-02-10 | 上海宝钢设备检修有限公司 | Shaft current prevention motor end cover structure |
| CN203632432U (en) * | 2013-12-15 | 2014-06-04 | 佳木斯电机股份有限公司 | Insulation structure of bearing assembly |
-
2017
- 2017-01-22 CN CN201710047459.0A patent/CN106685130A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH196445A (en) * | 1936-07-13 | 1938-03-15 | Siemens Ag | Noise and current insulated rolling bearings for electrical machines. |
| CN201238230Y (en) * | 2008-07-31 | 2009-05-13 | 上海电科电机科技有限公司 | Shaft current-proof structure used for medium-large electric motor rolling bearing |
| CN201388100Y (en) * | 2009-03-23 | 2010-01-20 | 中船重工电机科技股份有限公司 | Motor bearing seat insulation structure |
| CN201403016Y (en) * | 2009-04-17 | 2010-02-10 | 上海宝钢设备检修有限公司 | Shaft current prevention motor end cover structure |
| CN203632432U (en) * | 2013-12-15 | 2014-06-04 | 佳木斯电机股份有限公司 | Insulation structure of bearing assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936239A (en) * | 2019-04-26 | 2019-06-25 | 南通森玛特电机有限公司 | A kind of non-shaft stretching end on motor bearings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106685130A (en) | Insulation structure for reducing shaft current of non-driving extension end of motor | |
| CN206442219U (en) | It is a kind of to reduce the insulation system of motor non-shaft stretching end shaft current | |
| WO2021164522A1 (en) | Electric motor and electrical appliance | |
| CN208739017U (en) | A kind of copper bar installation structure | |
| CN206739544U (en) | Caster mounting structure, mobile air conditioner and dehumidifier | |
| CN204361814U (en) | A kind of electric corrosion prevention structure of plastic packaging motor | |
| CN203036105U (en) | Reinforced gas pipeline | |
| CN105422614A (en) | Simple and dismountable roller device | |
| CN201339666Y (en) | Electromagnetic clutch | |
| CN203430989U (en) | Double-layer cylindrical roller bearing | |
| CN101599669A (en) | Fixing and sealing device for rolling bearing of large motor | |
| CN202997787U (en) | Bearing housing structure used for variable-frequency and variable-speed motor | |
| CN210629279U (en) | Encoder insulating metal shaft structure and encoder | |
| CN206210581U (en) | A kind of shielding construction of valve lead | |
| CN207612149U (en) | A kind of motor end cover component of reinforced insulation | |
| CN208062697U (en) | A kind of ventilation base based on cable babinet | |
| CN215417898U (en) | Film capacitor with corrosion-resistant structure | |
| CN219529570U (en) | Conductive bearing and vehicle | |
| CN209414406U (en) | A kind of cylindrical roller of bearing | |
| CN102637989B (en) | Self-locking terminal of electric connector | |
| CN220355374U (en) | Waterproof device for infrared lamp | |
| CN202493788U (en) | Energy-saving connecting pipe for air-conditioner | |
| CN209895822U (en) | Shockproof anticorrosion low-sag wire | |
| CN203466659U (en) | Double layer motor casing | |
| CN208561413U (en) | A kind of Novel bunk pressure equipment hanging ring structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |