CN208237076U - A kind of axis sealing combination device - Google Patents
A kind of axis sealing combination device Download PDFInfo
- Publication number
- CN208237076U CN208237076U CN201820166982.5U CN201820166982U CN208237076U CN 208237076 U CN208237076 U CN 208237076U CN 201820166982 U CN201820166982 U CN 201820166982U CN 208237076 U CN208237076 U CN 208237076U
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- Prior art keywords
- sealing
- seal
- shaft
- axis
- chamber
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Classifications
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- 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
-
- 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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of axis sealing combination devices, including sealing base, first seal, second seal and movable plug device, the sealing base is fixed or is integrally formed with the component of application, seal chamber is constituted between sealing base and shaft outer wall, the shaft passes through the seal chamber in the middle part of sealing base, the first seal, the equal ring set of second seal is in shaft and is placed in seal chamber and front and back is oppositely arranged, there is oil sealing chamber between first seal and second seal, the aperture vertical with the axis of shaft is equipped in the middle part of the sealing base, the activity plug device is placed in aperture, oil sealing chamber is discharged by movable plug device in the intracavitary gas check of oil sealing.The abrasion of seal member can be effectively reduced in the axis sealing combination device, improve service life, and have wide range of applications, and sealing effect is good, high reliablity, low manufacture cost, thus practicability with higher and high financial profit.
Description
Technical field:
The utility model relates to a kind of axis sealing combination devices, are related to fluid machinery technical field of sealing technology.
Background technique:
Mechanical seal or various types of outside framework oil seals currently on the market, due to being face and face contact, it is very stiff and demanding between
Friction easily cause the abrasion of sealing surface, make to be sealed content leaks, thus not only influence sealing effect and reduce to make
Use the service life.
Utility model content:
Axis that is simple the technical problem to be solved by the utility model is to provide a kind of structure and effectively improving sealing effect
Use sealing combination device.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions:
A kind of axis sealing combination device, including sealing base, first seal, second seal and motion stops dress
It sets, the sealing base is fixed or is integrally formed with the component of application, and sealing is constituted between sealing base and shaft outer wall
Chamber, the shaft pass through sealing base in the middle part of seal chamber, the equal ring set of the first seal, second seal in shaft and
It is placed in seal chamber and front and back is oppositely arranged, there is oil sealing chamber, the sealing base between first seal and second seal
Middle part is equipped with the aperture vertical with the axis of shaft, and the activity plug device is placed in aperture, the intracavitary gas check of oil sealing
Pass through movable plug device be discharged oil sealing chamber.
Preferably, the first seal is socketed in shaft, the first seal includes the first sealing ring, described
First sealing ring and seal chamber roof are in sealing contact, and the bending vertically downward of the tail end of the first sealing ring forms medium and lubricating oil
The isolation face lower end of isolation face, medium and lubricating oil is towards the bending of shaft front end and forms inclined seal circle, the inclined seal
There is inclination angle, the tail end of the inclined seal circle and the outer wall of shaft are fit and abutted between circle and the outer wall of shaft.
Preferably, the angle at the inclination angle of the inclined seal circle is set as 5 ° -20 °.
Preferably, the second seal is socketed in shaft, the second seal includes the second sealing ring, described
Second sealing ring and seal chamber roof are in sealing contact, and the bending vertically downward of the tail end of the second sealing ring forms gear pasta, the gear
Pasta lower end is towards the horizontal bending in shaft front end and forms oil sealing sealing ring, is bonded between the oil sealing sealing ring and shaft outer wall
Against.
Preferably, the one side that oil sealing sealing ring is bonded with shaft is equipped with V-shaped groove.
Preferably, the angle of the apex angle of the V-shaped groove is set as 5 ° -30 °.
Preferably, the activity plug device includes plug cock, spring, spring retaining sleeve and ball, it is described
Plug cock is equipped with the venthole of perforation cock body and is fixed on sealing base, and the venthole and the oil sealing chamber connect
Logical, it is large diameter hole that the venthole, which is set as stepped hole and top, and the ball is placed in large diameter hole, and spring retaining sleeve is solid
Be scheduled on the upper end aperture of large diameter hole and be provided with gas vent, the spring be placed in large diameter hole and with ball and spring retaining sleeve
Cooperation connection.
Preferably, the lower orifice of the large diameter hole is set as the conical orifice with ball engagement.
Preferably, being equipped with separation sleeve between the first seal and second seal.
It is fixed on sealing base preferably, the rear portion of the second seal is equipped with and is looped around the gasket in shaft
With hole retaining ring.
Compared with prior art, the benificial effect of the utility model is to the axis sealing combination device can be effectively reduced
The abrasion of seal member, improves service life, and has wide range of applications, and sealing effect is good, high reliablity, low manufacture cost,
Thus practicability with higher and economic benefit are suitble to promote and apply.
Detailed description of the invention:
The present invention will be further described with reference to the accompanying drawing:
Fig. 1 is the front portion schematic cross-sectional view of the utility model；
Fig. 2 is the partial cross-sectional structural diagram of the movable plug device of the utility model.
Specific embodiment:
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection:
A kind of axis sealing combination device as shown in Figure 1 and Figure 2, including sealing base 1, first seal, the second sealing
Part and movable plug device, the sealing base are fixed or are integrally formed with the component of application, outside sealing base and shaft
Seal chamber is constituted between wall, the shaft passes through the seal chamber in the middle part of sealing base, and the first seal, second seal are equal
Ring set is in shaft and is placed in seal chamber and front and back is oppositely arranged, and has oil sealing chamber between first seal and second seal
3, the oil sealing is intracavitary to be equipped with lubricating oil, then plays the role of effectively lubricating to first seal, second seal, reduces mill
Damage.
The aperture vertical with the axis of shaft is equipped in the middle part of the sealing base, the activity plug device is placed in aperture,
Oil sealing chamber is discharged by movable plug device in the intracavitary gas check of oil sealing, in the present embodiment, to improve exhaust process
Stability, the activity plug device includes plug cock 4, spring 5, spring retaining sleeve 6 and ball 7, and the plug cock is equipped with perforation
It the venthole of cock body and is fixed on sealing base, the venthole is connected to the oil sealing chamber, and the venthole is set as platform
Rank hole and top are large diameter hole 8, and lower part is small diameter bore 9, and the ball is placed in large diameter hole 8, further, work as ball
When being placed in junction between large diameter hole and small diameter bore, the taper with ball engagement is set as at the top aperture of small diameter bore
Aperture 10, thus ball can agree with sealing with the top aperture of small diameter bore, and extraneous gas is prevented to enter in small diameter bore, ball
Diameter be less than the aperture of large diameter hole, spring retaining sleeve is fixed on the upper end aperture of large diameter hole and is provided with gas vent 24, institute
Spring is stated to be placed in large diameter hole and couple with ball and spring retaining sleeve cooperation.Ball is not in the case where by external force, ball
Can be pressed together in conical orifice under the action of spring and gravity, when gas from small diameter bore lower part enter and push ball from
It opens conical orifice and moves upwards, then gas enters in large diameter hole and is discharged by the gas vent of spring retaining sleeve, then
Balance the intracavitary pressure of oil sealing.
To improve sealing effect, the first seal is socketed in shaft, and the first seal includes the first sealing
Circle 11, first sealing ring and seal chamber roof are in sealing contact, and the bending vertically downward of the tail end of the first sealing ring simultaneously forms Jie
The lower end in the isolation face of the isolation face of matter and lubricating oil 12, the medium and lubricating oil towards the bending of shaft front end and forms inclination
Sealing ring 13, between the inclined seal circle and the outer wall of shaft have inclination angle 14, the tail end of the inclined seal circle with turn
The outer wall of axis is fit and abutted, and preferably, the angle at the inclination angle is set as 5 ° -20 °, in practical application,
One sealing ring, the isolation face of medium and lubricating oil, inclined seal circle are integrally formed and enclose in groove-like structure, three and shaft
Between formed prevent leaked liquid choked flow chamber 15, liquid pass through choked flow chamber when, can to inclined seal circle generate radial pressure,
Then to be bonded between inclined seal circle and shaft even closer, effectively improve sealing effect.
In the present embodiment, the second seal is socketed in shaft, and the second seal includes the second sealing ring
16, second sealing ring and seal chamber roof are in sealing contact, and the bending vertically downward of the tail end of the second sealing ring simultaneously forms gear oil
Face 17, it is described gear pasta lower end towards the horizontal bending in shaft front end and form oil sealing sealing ring 18, the oil sealing sealing ring with
It is fit and abutted between outer wall, further, the one side that the oil sealing sealing ring is bonded with shaft is equipped with V-shaped groove 19, and institute
The angle for stating the apex angle of V-shaped groove is set as 5 ° -30 °.
Oil sealing chamber is enclosed between second sealing ring, gear pasta, oil sealing sealing ring and first seal, oil sealing is intracavitary
Equipped with lubricating oil, then the contact position of oil sealing sealing ring and shaft is lubricated, reduces the abrasion of contact surface, oil sealing sealing ring
V-arrangement groove structure design so that it has between the outer wall of shaft there are two contact surface is supported, front support contact surface is effective
The oil leakage that oil sealing is intracavitary is avoided, back support face effectively avoids foreign from entering oil sealing chamber, and sealing effect is good.
It further, is to improve sealing effect, it can also be on the first seal inclined seal circle and second seal
The ring spring 23 of ring set on it is equipped on oil sealing sealing ring.
Thus, in practical applications, by the pressure of the working fluid sealed be P1, and due to shaft rotation when, second
Meeting frictional heat generation when relatively rotating between the lower end and shaft of sealing ring, the lubricating oil for then making oil sealing intracavitary generate pressure,
P2 is set by this oil pressure, then sets P3 for elastic acting force of the spring to ball, therefore, in actual moving process,
The product of P1 and the cosine value at the first inclination angle is greater than P2, and when P2 is greater than P3, the intracavitary pressure of oil sealing can pass through venthole
Discharge, and shaft revolving speed is faster, P2 pressure can be bigger, thus even if shaft high speed rotation, it also can effectively keep sealing device
Sealing effect.
For convenience of installation, separation sleeve 20 is equipped between first seal and second seal.
In addition, the rear portion of the second seal is set to further increase sealing effect and integrally-built stability
There are the gasket 21 and hole retaining ring 22 for being fixed on sealing base and being looped around in shaft.
The abrasion of seal member can be effectively reduced in above-mentioned axis sealing combination device, improve service life, and have a wide range of application
It is general, and sealing effect is good, high reliablity, low manufacture cost, thus practicability with higher and high financial profit.
It is emphasized that: the above is only the preferred embodiment of the present utility model, not appoints to the utility model
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of axis sealing combination device, it is characterised in that: including sealing base, first seal, second seal and
Movable plug device, the sealing base is fixed or is integrally formed with the component of application, between sealing base and shaft outer wall
Seal chamber is constituted, the shaft passes through the seal chamber in the middle part of sealing base, and the equal ring set of the first seal, second seal exists
It in shaft and is placed in seal chamber and front and back is oppositely arranged, there is oil sealing chamber between first seal and second seal, it is described
The aperture vertical with the axis of shaft is equipped in the middle part of sealing base, the activity plug device is placed in aperture, the intracavitary gas of oil sealing
Oil sealing chamber is discharged by movable plug device in body check.
2. a kind of axis sealing combination device according to claim 1, it is characterised in that: the first seal is socketed in
In shaft, the first seal includes the first sealing ring, and first sealing ring and seal chamber roof are in sealing contact, and first is close
The bending vertically downward of the tail end of seal forms the isolation face of medium and lubricating oil, the lower end that face is isolated of the medium and lubricating oil
Towards the bending of shaft front end and inclined seal circle is formed, there is inclination angle, institute between the inclined seal circle and the outer wall of shaft
The outer wall of the tail end and shaft of stating inclined seal circle is fit and abutted.
3. a kind of axis sealing combination device according to claim 2, it is characterised in that: the inclination of the inclined seal circle
The angle at angle is set as 5 ° -20 °.
4. a kind of axis sealing combination device according to claim 1, it is characterised in that: the second seal is socketed in
In shaft, the second seal includes the second sealing ring, and second sealing ring and seal chamber roof are in sealing contact, and second is close
The bending vertically downward of the tail end of seal forms gear pasta, and the gear pasta lower end is towards the horizontal bending in shaft front end and forms oil sealing
Sealing ring is fit and abutted between the oil sealing sealing ring and outer wall.
5. a kind of axis sealing combination device according to claim 4, it is characterised in that: the oil sealing sealing ring and shaft
The one side of fitting is equipped with V-shaped groove.
6. a kind of axis sealing combination device according to claim 5, it is characterised in that: the angle of the apex angle of the V-shaped groove
Degree is set as 5 ° -30 °.
7. a kind of axis sealing combination device according to claim 1, it is characterised in that: the activity plug device includes oil
Plug, spring, spring retaining sleeve and ball, the plug cock are equipped with the venthole of perforation cock body and are fixed on sealing base,
The venthole is connected to the oil sealing chamber, and it is large diameter hole that the venthole, which is set as stepped hole and top, and the ball is set
In in large diameter hole, spring retaining sleeve is fixed on the upper end aperture of large diameter hole and is provided with gas vent, and the spring is placed in big straight
Couple in diameter hole and with ball and spring retaining sleeve cooperation.
8. a kind of axis sealing combination device according to claim 7, it is characterised in that: the bottom hole of the large diameter hole
Mouth is set as the conical orifice with ball engagement.
9. a kind of axis sealing combination device according to claim 1, it is characterised in that: the first seal and second
Separation sleeve is equipped between sealing element.
10. a kind of axis sealing combination device according to claim 1, it is characterised in that: after the second seal
Portion, which is equipped with, to be fixed on sealing base and is looped around the gasket in shaft and hole retaining ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166982.5U CN208237076U (en) | 2018-01-31 | 2018-01-31 | A kind of axis sealing combination device |
| PCT/CN2018/076284 WO2019148546A1 (en) | 2018-01-31 | 2018-02-11 | Seal combination device for shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820166982.5U CN208237076U (en) | 2018-01-31 | 2018-01-31 | A kind of axis sealing combination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237076U true CN208237076U (en) | 2018-12-14 |
Family
ID=64578290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820166982.5U Active CN208237076U (en) | 2018-01-31 | 2018-01-31 | A kind of axis sealing combination device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208237076U (en) |
| WO (1) | WO2019148546A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192295A (en) * | 2020-09-27 | 2021-01-08 | 泉州市井贺精密设备有限公司 | Tool turret long in service life |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648019A (en) * | 2021-02-02 | 2021-04-13 | 昆明理工大学 | Flexible sealing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010144875A (en) * | 2008-12-19 | 2010-07-01 | Tanken Seal Seiko Co Ltd | Seal device for bearing |
| CN204299877U (en) * | 2014-11-13 | 2015-04-29 | 上海本菱涡旋压缩机有限公司 | A kind of axial seal structure for screw compressor |
| CN204512378U (en) * | 2014-12-26 | 2015-07-29 | 南京高速齿轮制造有限公司 | Seal arrangement between central shaft and gear box end cover |
| CN104806736A (en) * | 2015-04-21 | 2015-07-29 | 苏州船用动力系统股份有限公司 | Propeller shaft sealing structure of ship propeller |
-
2018
- 2018-01-31 CN CN201820166982.5U patent/CN208237076U/en active Active
- 2018-02-11 WO PCT/CN2018/076284 patent/WO2019148546A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192295A (en) * | 2020-09-27 | 2021-01-08 | 泉州市井贺精密设备有限公司 | Tool turret long in service life |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019148546A1 (en) | 2019-08-08 |
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| GR01 | Patent grant |