CN106505777A - A kind of sealing device of high-speed electric expreess locomotive - Google Patents
A kind of sealing device of high-speed electric expreess locomotive Download PDFInfo
- Publication number
- CN106505777A CN106505777A CN201610990385.XA CN201610990385A CN106505777A CN 106505777 A CN106505777 A CN 106505777A CN 201610990385 A CN201610990385 A CN 201610990385A CN 106505777 A CN106505777 A CN 106505777A
- Authority
- CN
- China
- Prior art keywords
- oil sealing
- outer shroud
- internal ring
- ring
- oil
- 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.)
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Classifications
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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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention relates to a kind of sealing device of high-speed electric expreess locomotive, including oil sealing internal ring and oil sealing outer shroud, the oil sealing inner ring sleeve is on electric machine main shaft, a first concavo-convex slot structure of circle is provided with the centre position of the oil sealing endocyclic outer wall, the oil sealing outer shroud inwall is provided with the second concavo-convex slot structure that a circle is matched with the described first concavo-convex slot structure, and the oil sealing outer shroud is rotatably arranged on the periphery of the oil sealing internal ring by the first concavo-convex slot structure with cooperating for the second concavo-convex slot structure；The alignment pin for being fixed on dynamo oil lid is additionally provided with the oil sealing outer shroud, and the alignment pin makes the oil sealing outer shroud not follow oil sealing internal ring to rotate in motor rotation together.The invention has the beneficial effects as follows：Sealing effectiveness is greatly enhanced；Direct friction of the oil sealing to main shaft can be reduced simultaneously, so as to increase the service life of main shaft.
Description
Technical field
The present invention relates to field of sealing technology, and in particular to a kind of sealing device of high-speed electric expreess locomotive.
Background technology
It is typically necessary sealing device to be sealed on electric machine main shaft, existing sealing device has following defect：
1st, sealing device can aggravate the abrasion of main shaft, so as to reduce the service life of main shaft；
2nd, sealing effectiveness is bad；
3rd, negative pressure can be produced when electric machine built-in fan blade runs, and the pressure that the negative pressure is ultimately formed is in plain bearing housing
Chamber has destruction, so as to caused oil leakage phenomenon.
Content of the invention
In sum, in order to overcome the deficiencies in the prior art, it is high that the technical problem to be solved is to provide one kind
The sealing device of speed motor.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of sealing device of high-speed electric expreess locomotive, including oil sealing
Internal ring and oil sealing outer shroud, the oil sealing inner ring sleeve are provided with one in the centre position of the oil sealing endocyclic outer wall on electric machine main shaft
Enclose the first concavo-convex slot structure, it is second concavo-convex that the oil sealing outer shroud inwall is provided with that a circle and the described first concavo-convex slot structure match
Slot structure, the oil sealing outer shroud be rotatably arranged on being cooperated for the second concavo-convex slot structure by the first concavo-convex slot structure
The periphery of the oil sealing internal ring；
On the oil sealing endocyclic outer wall and monosymmetric position of the corresponding oil sealing outer shroud is provided with and blocks oil sealing outer shroud
Projection, on the oil sealing endocyclic outer wall and the corresponding projection is provided with internal ring annular elastomeric away from the position of the side of oil sealing outer shroud
The oil sealing internal ring is close to the surface of electric machine main shaft for spring, the internal ring ring spring, and the oil sealing outer shroud outer wall is provided with
Outer shroud ring spring, the outer shroud ring spring are close to the oil sealing outer shroud on the oil sealing internal ring；
The alignment pin for being fixed on dynamo oil lid is additionally provided with the oil sealing outer shroud, and the alignment pin makes described
Oil sealing outer shroud does not follow oil sealing internal ring to rotate together in motor rotation.
The invention has the beneficial effects as follows：Oil sealing outer shroud is by concavo-convex slot structure rotatably installed in the outer of oil sealing internal ring
Week, concavo-convex slot structure form mazy seal form, greatly enhance sealing effectiveness；In addition oil sealing internal ring is pasted on motor
Main shaft surface follows main shaft to rotate, and oil sealing outer shroud is fixed in oil cap and does not follow main shaft to rotate, and can reduce oil sealing to main shaft
Direct friction, so as to increase the service life of main shaft.
On the basis of above-mentioned technical proposal, the present invention can also do improvement further below：
Further, the oil sealing internal ring lateral wall is provided with and can offset the reverse of negative pressure produced by electric machine built-in fan blade
Blade.
Further, side of the backward vane on the oil sealing internal ring lateral wall and near motor internal.
Using having the beneficial effect that for above-mentioned further technical scheme：When reducing motor operation, negative produced by built-in fan blade
Pressure is damaged to the pressure balance of plain bearing housing inner chamber, caused oil leakage phenomenon.
Further, the oil sealing internal ring is the circular ring structure together with upper semi-circle is mounted opposite with lower half circle.
Further, the oil sealing outer shroud is the circular ring structure together with upper semi-circle is mounted opposite with lower half circle.
Using having the beneficial effect that for above-mentioned further technical scheme：It is easy to be assembled on electric machine main shaft.
Description of the drawings
Fig. 1 is front view of the present invention；
Right views of the Fig. 2 for Fig. 1；
A-A sectional views of the Fig. 3 for Fig. 2；
B enlarged drawings of the Fig. 4 for Fig. 2；
Fig. 5 is the graphics of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1. oil sealing internal ring, 2. internal ring ring spring, 3. oil sealing outer shroud, 4. outer shroud ring spring, 5. internal ring backward vane, 6.
Oil sealing outer shroud alignment pin, 7. projection.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
Non- for limiting the scope of the present invention.
As described in figures 1 and 5, a kind of sealing device of high-speed electric expreess locomotive, including oil sealing internal ring 1 and oil sealing outer shroud 3, the oil sealing
Internal ring 1 and the oil sealing outer shroud 3 be upper semi-circle be mounted opposite with lower half circle together with circular ring structure, said structure be easy to by
Oil sealing is assembled on electric machine main shaft.
The oil sealing internal ring 1 is enclosed within electric machine main shaft, is provided with a circle first in the centre position of 1 outer wall of oil sealing internal ring
Concavo-convex slot structure, 3 inwall of oil sealing outer shroud are provided with a circle and are tied with the second tongue and groove that the described first concavo-convex slot structure matches
Structure, the oil sealing outer shroud 3 are rotatable installed in institute with cooperating for the second concavo-convex slot structure by the first concavo-convex slot structure
State the periphery of oil sealing internal ring 1.Oil sealing outer shroud 3 is by concavo-convex slot structure rotatably installed in the periphery of oil sealing internal ring 1, tongue and groove
Structure forms mazy seal form, greatly enhances sealing effectiveness.
As shown in Figures 2 and 3, on 1 outer wall of oil sealing internal ring and corresponding 3 monosymmetric position of the oil sealing outer shroud is provided with
The projection 7 that oil sealing outer shroud 3 is blocked, on 1 outer wall of oil sealing internal ring and corresponds to side of the projection 7 away from oil sealing outer shroud 3
Position be provided with internal ring ring spring 2, the oil sealing internal ring 1 is close to the internal ring ring spring 2 surface of electric machine main shaft,
3 outer wall of oil sealing outer shroud is provided with outer shroud ring spring 4, and the oil sealing outer shroud 3 is close to institute by the outer shroud ring spring 4
State on oil sealing internal ring 1.As shown in figure 4, being additionally provided with the alignment pin for being fixed on dynamo oil lid on the oil sealing outer shroud 3
6, the alignment pin 6 makes the oil sealing outer shroud 3 not follow oil sealing internal ring 1 to rotate in motor rotation together.Oil sealing internal ring 1 is sticked
Follow main shaft to rotate in electric machine main shaft surface, and oil sealing outer shroud 3 is fixed in oil cap and does not follow main shaft to rotate, and can reduce oil sealing
Direct friction to main shaft, so that increase the service life of main shaft.
The oil sealing internal ring 1 is provided with the backward vane 5 that can offset the negative pressure produced by electric machine built-in fan blade, and this is reverse
Side of the blade 5 on 1 lateral wall of oil sealing internal ring and near motor internal.Negative pressure produced by backward vane 5 can be with
The negative pressure produced by electric machine built-in fan blade is offset, the pressure balance of plain bearing housing inner chamber can be made, when reducing motor operation, interior
Put the negative pressure produced by fan blade to damage the pressure balance of plain bearing housing inner chamber, caused oil leakage phenomenon.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements that is made etc. should be included within the scope of the present invention.
Claims (5)
1. a kind of sealing device of high-speed electric expreess locomotive, it is characterised in that including oil sealing internal ring (1) and oil sealing outer shroud (3), the oil sealing
Internal ring (1) is enclosed within electric machine main shaft, is provided with first concaveconvex structure of circle, institute in the centre position of oil sealing internal ring (1) outer wall
State oil sealing outer shroud (3) inwall and be provided with the second concaveconvex structure that a circle is matched with first concaveconvex structure, the oil sealing outer shroud
(3) the outer of oil sealing internal ring (1) is rotatably arranged on by the first concaveconvex structure and cooperating for the second concaveconvex structure
Week；
On oil sealing internal ring (1) outer wall and corresponding oil sealing outer shroud (3) monosymmetric position is provided with oil sealing outer shroud (3)
The projection (7) for blocking, on oil sealing internal ring (1) outer wall and corresponds to the position of projection (7) away from the side of oil sealing outer shroud (3)
Internal ring ring spring (2) is installed, internal ring ring spring (2) oil sealing internal ring (1) is close to the table of electric machine main shaft
Face, oil sealing outer shroud (3) outer wall are provided with outer shroud ring spring (4), and outer shroud ring spring (4) are by the oil sealing outer shroud
(3) it is close on oil sealing internal ring (1)；
The alignment pin (6) for being fixed on dynamo oil lid, alignment pin (6) are additionally provided with oil sealing outer shroud (3)
Oil sealing outer shroud (3) are made not follow oil sealing internal ring (1) to rotate in motor rotation together.
2. sealing device according to claim 1, it is characterised in that oil sealing internal ring (1) lateral wall is provided with can be with
Offset the backward vane (5) of the negative pressure produced by electric machine built-in fan blade.
3. sealing device according to claim 1, it is characterised in that described backward vane (5) are in the oil sealing internal ring
(1) on lateral wall and near motor internal side.
4. the sealing device according to any one of claims 1 to 3, it is characterised in that described oil sealing internal ring (1) is upper semi-circle
Circular ring structure together with being mounted opposite with lower half circle.
5. the sealing device according to any one of claims 1 to 3, it is characterised in that described oil sealing outer shroud (3) are upper semi-circle
Circular ring structure together with being mounted opposite with lower half circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990385.XA CN106505777B (en) | 2016-11-10 | 2016-11-10 | A kind of sealing device of high-speed electric expreess locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990385.XA CN106505777B (en) | 2016-11-10 | 2016-11-10 | A kind of sealing device of high-speed electric expreess locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106505777A true CN106505777A (en) | 2017-03-15 |
| CN106505777B CN106505777B (en) | 2018-10-26 |
Family
ID=58323906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610990385.XA Active CN106505777B (en) | 2016-11-10 | 2016-11-10 | A kind of sealing device of high-speed electric expreess locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106505777B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712003A (en) * | 2018-05-28 | 2018-10-26 | 海宁欧乐威环境科技有限公司 | A kind of motor special for water pump |
| CN109067066A (en) * | 2018-08-28 | 2018-12-21 | 珠海格力电器股份有限公司 | Motor shaft extension sealing structure and motor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201027980Y (en) * | 2007-02-14 | 2008-02-27 | 茂顺密封元件科技股份有限公司 | Sealing element |
| CN201044385Y (en) * | 2007-05-01 | 2008-04-02 | 无锡华达电机有限公司 | Seal structure of electric motor shaft |
| CN201436768U (en) * | 2009-05-14 | 2010-04-07 | 湘潭电机股份有限公司 | Rotation sealing device for motor journal |
| CN202118125U (en) * | 2011-06-17 | 2012-01-18 | 广州机械科学研究院 | Sealing structure for bearing end surface convenient to detach and install |
| CN202451837U (en) * | 2012-01-04 | 2012-09-26 | 广州机械科学研究院有限公司 | Labyrinth embedded split oil seal |
| CN105794091A (en) * | 2013-10-22 | 2016-07-20 | 比伯拉赫利勃海尔零部件有限公司 | Labyrinth seal for three-phase machines |
| CN206332542U (en) * | 2016-11-10 | 2017-07-14 | 广西恒达电机科技有限公司 | A kind of sealing device of high-speed electric expreess locomotive |
-
2016
- 2016-11-10 CN CN201610990385.XA patent/CN106505777B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201027980Y (en) * | 2007-02-14 | 2008-02-27 | 茂顺密封元件科技股份有限公司 | Sealing element |
| CN201044385Y (en) * | 2007-05-01 | 2008-04-02 | 无锡华达电机有限公司 | Seal structure of electric motor shaft |
| CN201436768U (en) * | 2009-05-14 | 2010-04-07 | 湘潭电机股份有限公司 | Rotation sealing device for motor journal |
| CN202118125U (en) * | 2011-06-17 | 2012-01-18 | 广州机械科学研究院 | Sealing structure for bearing end surface convenient to detach and install |
| CN202451837U (en) * | 2012-01-04 | 2012-09-26 | 广州机械科学研究院有限公司 | Labyrinth embedded split oil seal |
| CN105794091A (en) * | 2013-10-22 | 2016-07-20 | 比伯拉赫利勃海尔零部件有限公司 | Labyrinth seal for three-phase machines |
| CN206332542U (en) * | 2016-11-10 | 2017-07-14 | 广西恒达电机科技有限公司 | A kind of sealing device of high-speed electric expreess locomotive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712003A (en) * | 2018-05-28 | 2018-10-26 | 海宁欧乐威环境科技有限公司 | A kind of motor special for water pump |
| CN109067066A (en) * | 2018-08-28 | 2018-12-21 | 珠海格力电器股份有限公司 | Motor shaft extension sealing structure and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106505777B (en) | 2018-10-26 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A sealing device for high speed motor Effective date of registration: 20210623 Granted publication date: 20181026 Pledgee: Laibin branch of industrial and Commercial Bank of China Ltd. Pledgor: GUANGXI HENGDA MACHINE TECHNOLOGY Co.,Ltd. Registration number: Y2021450000025 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221130 Granted publication date: 20181026 Pledgee: Laibin branch of industrial and Commercial Bank of China Ltd. Pledgor: GUANGXI HENGDA MACHINE TECHNOLOGY Co.,Ltd. Registration number: Y2021450000025 |