CN106763781A - Rotate the liquid sealing structure of machinery - Google Patents
Rotate the liquid sealing structure of machinery Download PDFInfo
- Publication number
- CN106763781A CN106763781A CN201611263829.6A CN201611263829A CN106763781A CN 106763781 A CN106763781 A CN 106763781A CN 201611263829 A CN201611263829 A CN 201611263829A CN 106763781 A CN106763781 A CN 106763781A
- Authority
- CN
- China
- Prior art keywords
- intake chute
- seal
- capping
- fluid chamber
- sealing structure
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
A kind of liquid sealing structure for rotating machinery, including capping of the turning set in a rotating shaft, the rotating shaft is extended to outside the fluid chamber from a fluid chamber, the capping is fixed to the fluid chamber to seal the fluid chamber, the capping has the mounting hole installed with the rotating shaft, the mounting hole internal face is provided with intake chute, the liquid sealing structure also includes the seal in the fluid chamber, the seal is fixedly installed in the rotating shaft with the axis of rotation, the seal has a wall for being close to the intake chute, when the seal is with the axis of rotation, leaking out to the effusion of the wall of the seal can under the influence of centrifugal force be thrown toward the intake chute and flow back into the fluid chamber through the intake chute.
Description
Technical field
The present invention relates to rotate machinery, more particularly to a kind of liquid sealing structure for rotating machinery.
Background technology
High-speed electric expreess locomotive uses sliding bearing more because rotating speed is tall and big, therefore feed lubrication is essential condition.
But in some cases, it is easy to cause oily leakage, cause unnecessary waste, and pollute the environment.And due to bearing
Inner side is all negative pressure, and the oil of leakage may be inhaled into motor body, or even is infiltrated into machine winding, hinders the normal fortune of motor
Turn, substantially reduce the service life of motor.Therefore, it is this area to find a kind of sealing structure that can effectively prevent oil from leaking
Technical staff's problem demanding prompt solution.
The content of the invention
In view of this, the present invention proposes a kind of liquid sealing structure for rotating machinery.
The present invention proposes a kind of liquid sealing structure for rotating machinery, including capping of the turning set in a rotating shaft, institute
State rotating shaft to be extended to from a fluid chamber outside the fluid chamber, the capping is fixed to the fluid chamber to seal the liquid
Chamber, the capping has the mounting hole installed with the rotating shaft, and the mounting hole internal face is provided with intake chute, the hydraulic seal
Structure also includes the seal in the fluid chamber, and the seal is fixedly installed in the rotating shaft with the rotating shaft
Rotate, the seal has a wall for being close to the intake chute, when the seal is with the axis of rotation, leaks out to
The effusion of the wall of the seal can under the influence of centrifugal force be thrown toward the intake chute and through the intake chute stream
It is back to the fluid chamber.
In one embodiment, the seal includes the annular body with mounting hole and along the annular body inner circumferential
The axially extending axle sleeve of edge, the seal wall is the outer surface of the axle sleeve, and the capping is rotated and is set in the axle sleeve
Outer surface on.
In one embodiment, the intake chute includes radial direction intake chute and the axial drain connected with the radial direction intake chute
Groove, the effusion is thrown toward the radial direction intake chute, then flow back into the fluid chamber through the axial intake chute.
In one embodiment, the radial direction intake chute is annular, along the circumferencial direction of the mounting hole internal face of the capping
Extend.
In one embodiment, the radial direction intake chute has a plurality of, and every radial direction intake chute all connects with the axial intake chute
It is logical so that getting rid of can converge into the axial intake chute to the effusion of the radial direction intake chute.
In one embodiment, a space, the intake chute and the space are formed between the seal and the capping
Connection.
In one embodiment, the radially outer edge of the annular body extends towards the capping and forms an annular flange, described
Space is annular space, is surrounded and is formed by the annular body, the annular flange, the axle sleeve and the capping, the ring
Shape flange is provided with through hole, and the through hole connects the annular space and the fluid chamber.
In one embodiment, the intake chute is included along many of the circumferencial direction extension of the mounting hole internal face of the capping
Bar radial direction intake chute and the axial intake chute connected with the radial direction intake chute, the effusion are thrown toward the radial direction drain
Groove, then flows to the annular space through the axial intake chute.
In one embodiment, the capping includes one towards the raised central part of the seal, outside the central part
Less than the internal diameter of the annular flange, the annular flange and the central part are locally overlapped in the axial direction in footpath.
In certain embodiments, the fluid chamber is the oil pocket for accommodating lubricating oil.
In sum, the invention provides a kind of liquid sealing structure for rotating machinery.One is set in fluid chamber to seal
Part, fluid chamber is sealed using capping, and capping is rotated and is set on the wall of seal, is set on the mounting hole internal face of capping
Intake chute, intake chute is connected with fluid chamber.When seal is with axis of rotation, the effusion of seal wall is leaked out to, for example, moistened
Lubricating oil can be got rid of into intake chute under the action of the centrifugal force, then through intake chute flow back fluid body cavity, is reclaimed, and effectively play sealing
Effect.And the rotating speed of rotating shaft is bigger, sealing effectiveness is better.Additionally, also forming one and fluid chamber between seal and capping
The annular space of connection, the annular flange of seal is local with the central part of capping Chong Die, reduces fluid chamber with annular space
Connected entrance, can further it is smaller oil leakage probability.Hydraulic seal mechanism of the invention is novel, designs ingenious, can be effective
Prevent from rotating machinery, the particularly oily leakage problem of high-speed electric expreess locomotive.
Brief description of the drawings
Fig. 1 is the generalized section of liquid sealing structure of the invention.
Fig. 2 is the dimensional structure diagram of capping of the invention.
Specific embodiment
Before describing the embodiments in more detail, it should be understood that the invention is not restricted to institute hereafter or in accompanying drawing in the application
The detailed construction or arrangement of elements of description.The present invention can be the embodiment that other manner is realized.Furthermore, it is to be understood that this paper institutes
The wording and term for using are solely for describing purposes, should not the explanation of being construed as limiting property.It is used herein " including ", "comprising",
The similar wording such as " having " is meant comprising items listed thereafter, its equivalent and other additional things.Particularly, description is worked as
When " certain element ", the quantity that the present invention does not limit the element is one, it is also possible to including multiple.
The present invention is described in detail by taking the sliding bearing of high-speed electric expreess locomotive as an example to liquid sealing structure.
As shown in Figure 1-2, the present invention provides a kind of liquid sealing structure 10 for rotating machinery, and the liquid sealing structure 10 is wrapped
Include rotating shaft 12, capping 14, seal 16.Rotating shaft 12 is extended to outside fluid chamber 18 from a fluid chamber 18, by taking Fig. 1 as an example, capping
14 left side is fluid chamber 18, and the right side of capping 14 is outside.In an illustrated embodiment, fluid chamber 18 can be equipped with lubrication
The oil pocket of oil.Capping 14 is fixed to fluid chamber 18 to seal fluid chamber 18, and seal 16 is located in fluid chamber 18, and is fixedly mounted
Rotated with rotating shaft 12 in rotating shaft 12.
More specifically, capping 14 has the mounting hole 20 installed with rotating shaft 12, the internal face of mounting hole 20 is provided with intake chute,
Intake chute is connected with fluid chamber 18.Seal 16 has a wall 22 for being close to the intake chute.Because seal 16 is to be located at
In fluid chamber 18, therefore the liquid in fluid chamber 18, such as lubricating oil can ooze out from the wall 22 of seal 16.Work as seal
16 with rotating shaft 12 when rotating, and the effusion for leaking out to the wall 22 of seal 16 can be thrown toward and wall under the influence of centrifugal force
In 22 close intake chutes, and flow back into fluid chamber 18 through intake chute.And the rotating speed of rotating shaft 12 is higher, the wall of seal 16
Effusion on face 22 is got rid of bigger into the centrifugal force of intake chute, therefore the sealing effectiveness of liquid sealing structure 10 can be better.
In an illustrated embodiment, seal 16 includes annular body 24 and axle sleeve 26.Annular body 24 has one to be used to
The mounting hole installed with rotating shaft 12, axle sleeve 26 is, along the axially extending formation of inner peripheral of annular body 24, and to be set in rotating shaft
On 12.The wall 22 of above-mentioned seal 16 is the outer surface 22 of axle sleeve 26.The radially outer edge direction capping 14 of annular body 24
Extend and form an annular flange 30.
A space 32 is formed between seal 16 and capping 14, the intake chute is connected with space 32, to cause intake chute
In lubricating oil can be in inflow space 32.Specifically, space 32 is by annular body 24, annular flange 30, axle sleeve 26 and envelope
Lid 14 surrounds the annular space 32 centered on rotating shaft 12 to be formed.Annular flange 30 is provided with through hole 31, through hole 31 respectively with
Annular space 32 is connected with fluid chamber 18.
In an illustrated embodiment, capping 14 is rotated and is set on the outer surface 22 of axle sleeve 26.Capping 14 includes a direction
The central part 34 of the projection of seal 16.The external diameter of central part 34 is less than the internal diameter of the annular flange 30 of seal 16, and annular
Flange 30 is local in the axial direction with central part 34 Chong Die.More particularly, above-mentioned annular space 32 is by the annular of seal 16
The central part 34 of main body 24, annular flange 30, axle sleeve 26 and capping 14 surrounds to be formed.
The intake chute is arranged on the internal face of capping mounting hole 20.In the present embodiment, the mounting hole 20 of capping 14
Internal face is actually the internal face of the radially inner side of central part 34, therefore, intake chute is alternatively into being provided in center
On the internal face of the radially inner side in portion 34.
Intake chute includes radial direction intake chute 36 and the axial intake chute 38 connected with radial direction intake chute 36, radial direction intake chute 36
Notch it is relative with the outer surface of axle sleeve 26, axial intake chute 38 is connected with fluid chamber 18.Radial direction intake chute 36 is annular, along envelope
The circumferencial direction of the internal face of the mounting hole 20 of lid 14 extends.In the present embodiment, radial direction intake chute 36 is set to two.Therefore,
When rotating shaft 12 is rotated, penetrating fluid is got rid of into radial direction intake chute 36 from the outer surface 22 of axle sleeve 26 before this, then from radial direction intake chute 36
In flow into axial intake chute 38, then warp beam flows to fluid chamber 18 to intake chute 38.
It should be appreciated that in an illustrated embodiment, radial direction intake chute 36 is set to two, in other embodiments,
According to specific design demand, radial direction intake chute 36 it can also be provided that a plurality of, every radial direction intake chute 36 all with axial intake chute
38 connections so that getting rid of can converge into axial intake chute 38 to the effusion of radial direction intake chute 36.
In the present embodiment, central part 34 is connected with annular space 32, and the footpath in the axial centrally disposed portion 34 of intake chute 38
To on the inner surface of inner side, the outlet of axial intake chute 38 is also configured as being connected with annular space 32.Therefore, when rotating shaft 12 is rotated
When, penetrating fluid is got rid of into radial direction intake chute 36 from the outer surface 22 of axle sleeve 26 before this, and then warp beam flows to annular to intake chute 38
In space 32, then from the flow back fluid body cavity 18 of through hole 31 of annular space 32.
It should be appreciated that the embodiment of the sliding bearing of above-mentioned high-speed electric expreess locomotive is only the preferred embodiment of the present invention,
The present invention ought be not limited.Liquid sealing structure of the invention can also be widely used in rotating machinery liquid it is close
Envelope, such as gear pump, bubble oil/water cooling etc..
In sum, the invention provides a kind of liquid sealing structure for rotating machinery.One is set in fluid chamber to seal
Part, fluid chamber is sealed using capping, and capping is rotated and is set on the wall of seal, is set on the mounting hole internal face of capping
Intake chute, intake chute is connected with fluid chamber.When seal is with axis of rotation, the effusion of seal wall is leaked out to, for example, moistened
Lubricating oil can be got rid of into intake chute under the action of the centrifugal force, then through intake chute flow back fluid body cavity, is reclaimed, and effectively play sealing
Effect.And the rotating speed of rotating shaft is bigger, sealing effectiveness is better.Additionally, also forming one and fluid chamber between seal and capping
The annular space of connection, the annular flange of seal is local with the central part of capping Chong Die, reduces fluid chamber with annular space
Connected entrance, can further it is smaller oil leakage probability.Hydraulic seal mechanism of the invention is novel, designs ingenious, can be effective
Prevent from rotating machinery, the particularly oily leakage problem of high-speed electric expreess locomotive.
Concepts described herein may be embodied to other forms in the case of without departing from its spirit and characteristic.It is disclosed
Specific embodiment should be considered as exemplary rather than restricted.Therefore, the scope of the present invention be by appended claim,
It is determined rather than these descriptions before basis.Any change in the letter and equivalency range of claim is all
The scope of these claims should be belonged to.
Claims (10)
1. a kind of capping of the liquid sealing structure for rotating machinery, including turning set in the rotating shaft, the rotating shaft is from a liquid
Extended in body cavity outside the fluid chamber, the capping is fixed to the fluid chamber to seal the fluid chamber, it is characterised in that
The capping has the mounting hole installed with the rotating shaft, and the mounting hole internal face is provided with intake chute, the hydraulic seal knot
Structure also includes the seal in the fluid chamber, and the seal is fixedly installed in the rotating shaft and turns with the rotating shaft
Dynamic, the seal has a wall for being close to the intake chute, when the seal is with the axis of rotation, leaks out to institute
Stating the effusion of the wall of seal can under the influence of centrifugal force be thrown toward the intake chute and be flowed back to through the intake chute
To the fluid chamber.
2. it is as claimed in claim 1 to rotate mechanical liquid sealing structure, it is characterised in that the seal includes thering is peace
Fill the annular body in hole and along the axially extending axle sleeve of the annular body inner peripheral, the seal wall is the axle sleeve
Outer surface, the capping rotates and is set on the outer surface of the axle sleeve.
3. it is as claimed in claim 2 to rotate mechanical liquid sealing structure, it is characterised in that the intake chute includes radial guiding
Liquid bath and the axial intake chute connected with the radial direction intake chute, the effusion are thrown toward the radial direction intake chute, Ran Houjing
The axial intake chute flow back into the fluid chamber.
4. it is as claimed in claim 3 to rotate mechanical liquid sealing structure, it is characterised in that the radial direction intake chute is ring
Shape, the circumferencial direction along the mounting hole internal face of the capping extends.
5. it is as claimed in claim 4 to rotate mechanical liquid sealing structure, it is characterised in that the radial direction intake chute has many
Bar, every radial direction intake chute is all connected with the axial intake chute so that getting rid of can converge to the effusion of the radial direction intake chute
It flow to the axial intake chute.
6. it is as claimed in claim 2 to rotate mechanical liquid sealing structure, it is characterised in that the seal and the capping
Between form a space, the intake chute is connected with the space.
7. it is as claimed in claim 6 to rotate mechanical liquid sealing structure, it is characterised in that the footpath of the annular body is outside
Edge extends towards the capping and forms an annular flange, and the space is annular space, by the annular body, the convex annular
Edge, the axle sleeve and the capping surround to be formed, and the annular flange is provided with through hole, the through hole connect the annular space with
The fluid chamber.
8. it is as claimed in claim 7 to rotate mechanical liquid sealing structure, it is characterised in that the intake chute is included along described
The a plurality of radial direction intake chute of the circumferencial direction extension of the mounting hole internal face of capping and the axial direction connected with the radial direction intake chute
Intake chute, the effusion is thrown toward the radial direction intake chute, then flows to the annular space through the axial intake chute.
9. it is as claimed in claim 7 to rotate mechanical liquid sealing structure, it is characterised in that the capping includes one towards institute
State the raised central part of seal, the internal diameter of the external diameter less than the annular flange of the central part, the annular flange and institute
Central part is stated locally to overlap in the axial direction.
10. mechanical liquid sealing structure is rotated as described in claim 1-9 any one, it is characterised in that the liquid
Chamber is the oil pocket for accommodating lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263829.6A CN106763781B (en) | 2016-12-30 | 2016-12-30 | Rotate mechanical liquid sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263829.6A CN106763781B (en) | 2016-12-30 | 2016-12-30 | Rotate mechanical liquid sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106763781A true CN106763781A (en) | 2017-05-31 |
| CN106763781B CN106763781B (en) | 2019-04-30 |
Family
ID=58951355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611263829.6A Active CN106763781B (en) | 2016-12-30 | 2016-12-30 | Rotate mechanical liquid sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106763781B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018120131A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳智慧能源技术有限公司 | Liquid sealing structure for rotating machinery |
| CN111622946A (en) * | 2020-06-02 | 2020-09-04 | 安徽优源液压科技有限公司 | High-power gear oil pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440401A (en) * | 1982-05-15 | 1984-04-03 | Skf Kugellagerfabriken Gmbh | Seal assembly for bearing cups slidable in axial direction in bore |
| CN2713229Y (en) * | 2004-05-18 | 2005-07-27 | 郑小平 | Mechanical sealing device |
| CN201326649Y (en) * | 2008-11-20 | 2009-10-14 | 上海连成（集团）有限公司 | Novel improvement on sliding bearing sealing |
| AU2011201080A1 (en) * | 2010-03-10 | 2011-09-29 | Cbc Australia Pty Ltd | A Sealing Ring |
| CN202031994U (en) * | 2011-02-15 | 2011-11-09 | 广州宝力特液压密封有限公司 | Labyrinth-type bearing isolator |
| CN205446419U (en) * | 2015-12-25 | 2016-08-10 | 株式会社久保田 | Lubricating oil spills and prevents structure and pump |
| CN206320295U (en) * | 2016-12-30 | 2017-07-11 | 深圳智慧能源技术有限公司 | Rotate the liquid sealing structure of machinery |
-
2016
- 2016-12-30 CN CN201611263829.6A patent/CN106763781B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440401A (en) * | 1982-05-15 | 1984-04-03 | Skf Kugellagerfabriken Gmbh | Seal assembly for bearing cups slidable in axial direction in bore |
| CN2713229Y (en) * | 2004-05-18 | 2005-07-27 | 郑小平 | Mechanical sealing device |
| CN201326649Y (en) * | 2008-11-20 | 2009-10-14 | 上海连成（集团）有限公司 | Novel improvement on sliding bearing sealing |
| AU2011201080A1 (en) * | 2010-03-10 | 2011-09-29 | Cbc Australia Pty Ltd | A Sealing Ring |
| CN202031994U (en) * | 2011-02-15 | 2011-11-09 | 广州宝力特液压密封有限公司 | Labyrinth-type bearing isolator |
| CN205446419U (en) * | 2015-12-25 | 2016-08-10 | 株式会社久保田 | Lubricating oil spills and prevents structure and pump |
| CN206320295U (en) * | 2016-12-30 | 2017-07-11 | 深圳智慧能源技术有限公司 | Rotate the liquid sealing structure of machinery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018120131A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳智慧能源技术有限公司 | Liquid sealing structure for rotating machinery |
| CN111622946A (en) * | 2020-06-02 | 2020-09-04 | 安徽优源液压科技有限公司 | High-power gear oil pump |
| CN111622946B (en) * | 2020-06-02 | 2022-02-01 | 安徽优源液压科技有限公司 | High-power gear oil pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106763781B (en) | 2019-04-30 |
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