CN108757948A - Rotate oil-gas sealing device and central aerating and exhaust device - Google Patents
Rotate oil-gas sealing device and central aerating and exhaust device Download PDFInfo
- Publication number
- CN108757948A CN108757948A CN201810946324.2A CN201810946324A CN108757948A CN 108757948 A CN108757948 A CN 108757948A CN 201810946324 A CN201810946324 A CN 201810946324A CN 108757948 A CN108757948 A CN 108757948A
- Authority
- CN
- China
- Prior art keywords
- oil
- valve body
- hermetic seal
- gas sealing
- seal
- 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
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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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
Abstract
The invention discloses a kind of rotation oil-gas sealing device and central aerating and exhaust devices.Wherein, the rotation oil-gas sealing device includes sealed valve body, the annular inner wall of the sealed valve body is equipped with first groove, the second groove radially extended side by side, first of hermetic seal and second hermetic seal are equipped in the first groove, oil seal is equipped in the second groove, the sealed valve body forms sealing gland end axially adjacent to one end of first of hermetic seal and the second hermetic seal；The sealed valve body forms oil sealing end axially adjacent to described oil-tightening one end.The oil-gas sealing device is simple in structure, occupies little space, long lifespan.
Description
Technical field
The present invention relates to central vehicle inflation/deflation technical field more particularly to a kind of rotation oil-gas sealing device and including
The central aerating and exhaust device of the rotation oil-gas sealing device.
Background technology
Vehicle center tyre air-charging and air-discharging system be one kind can in vehicle traveling process or when stopping at any time detection and
Adjust tire pressure system be by this when automobile is in the more complicated road traveling such as desert, grassland, marsh, miriness
System can adjust tire pressure in real time.
When automobile is in preferable road traveling, vehicle mobility it is more demanding, at this time utilize the system can improve wheel
The blowing pressure of tire reduces the energy loss that tire deforms generation during the motion.After tire pressure improves, car speed phase
It should just be improved, the temperature that tire generates during exercise is accordingly reduced, and the service life of tire extends.
When automobile is in the road traveling that height rises and falls, what the controllable velocity of automobile was subjected to by driver and passenger and vehicle
Vibration and impact are limited, and in order to obtain preferable driver comfort, the system can be utilized suitably to reduce tire pressure, improved
The cushioning ability of tire.
When automobile the soft surfaces such as marsh, meadow when driving, tire pressure can be reduced by the system, it is appropriate to increase
The contact area of tire reduces the sinkage of tire, improves the adhesion property of tire, so as to increase considerably tractive force,
Improve the passability of automobile.
In vehicle center tyre air-charging and air-discharging system, air flue needs are sealed, and especially high pressure gas is turned by quiet to dynamic
Place is changed, needs to be sealed air flue.It when being sealed air flue, on the one hand needs to prevent high pressure gas leakage, on the other hand
Need to prevent hydraulic oil into polluting air flue in air entering flue.Therefore, generally use sealing hydrocarbons are sealed air flue.The prior art
In, generally use rubber type sealing hydrocarbons, this rubber type sealing hydrocarbons use soft rubber lip, in order to improve sealing effect
Fruit, this rubber type sealing hydrocarbons use thicker soft rubber lip, soft rubber lip are pressed on Intake shaft, because
This, the sealing hydrocarbons of this structure have the following disadvantages：Frictional force is big, and it is big to seize power；Lip easy damaged, service life are low；Allow axis
Jerk value is smaller；Compression resistance is low, and occupied space is big.
Therefore, how to provide it is a kind of it is simple in structure, occupy little space, the oil-gas sealing device of long lifespan, become this field
Technical staff's technical problem urgently to be resolved hurrily.
Invention content
The object of the present invention is to provide it is a kind of it is simple in structure, occupy little space, the rotation oil-gas sealing device of long lifespan with
And the central aerating and exhaust device with above-mentioned rotation oil-gas sealing device.
One aspect of the present invention provides a kind of rotation oil-gas sealing device, including sealed valve body, the sealed valve body
Annular inner wall is equipped with first groove, the second groove radially extended side by side, and the first groove is interior airtight equipped with first
Envelope and second hermetic seal, the second groove is interior to be equipped with oil seal, and the sealed valve body is airtight axially adjacent to described first
One end of envelope and the second hermetic seal forms sealing gland end；The sealed valve body is formed axially adjacent to described oil-tightening one end
Oil sealing end.
Another aspect of the present invention provides a kind of central aerating and exhaust device, including air inlet valve body, Intake shaft and two are such as
The sealing gland ends of the rotation oil-gas sealing device, described two rotation oil-gas sealing devices are opposite, and with the Intake shaft
It is coaxially installed in the intake valve body.
The rotation oil-gas sealing device that aforementioned aspect of the present invention provides is equipped with side by side in the inner wall of the sealed valve body of annular
Hermetic seal and oil seal, after Intake shaft is inserted into sealed valve body, hermetic seal and oil seal are fitted tightly over the surface of Intake shaft, gas
Rotary dynamic seal is formed between sealing and oil seal and Intake shaft, hermetic seal includes first of hermetic seal in same groove
With second hermetic seal, twice hermetic seal greatly improves compared with the larger lip seal of soft rubber together of existing thickness
Sealing effect；Hermetic seal and oil seal are mounted in the groove of sealed valve body, and this structure occupies little space, hermetic seal and oil
Sealing does not need external force and is pressed on Intake shaft, and the permission jerk value of Intake shaft is larger, hermetic seal and oil seal and Intake shaft it
Between frictional force it is small, to seize power small, and then lip is not easy to damage, long lifespan.
Description of the drawings
Fig. 1 is the cross section structure schematic diagram for the rotation oil-gas sealing device that an embodiment of the present invention provides；
Fig. 2 is the partial structurtes enlarged diagram that oil-gas sealing device is rotated in Fig. 1；
Fig. 3 is the overlooking structure diagram that oil-gas sealing device is rotated in Fig. 1；
Fig. 4 is the structural schematic diagram for the central aerating and exhaust device that an embodiment of the present invention provides.
Wherein, in Fig. 1-Fig. 4：
Sealed valve body 1, first of hermetic seal 2, second hermetic seal 3, oil seal 4, O-ring seal 5, radial notch 6, into
Air valve body 7, first axis hole 71, the first radial hole 72, first rotation oil-gas sealing device 8, Intake shaft 9, the second axial hole 91,
Second radial hole 92, the second oil-gas sealing device 10.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
- Fig. 4 is please referred to Fig.1, Fig. 1 is that the cross section structure for the rotation oil-gas sealing device that an embodiment of the present invention provides shows
It is intended to, partial structurtes enlarged diagram, Fig. 3 that Fig. 2 is rotation oil-gas sealing device in Fig. 1 are that sealing hydrocarbons dress is rotated in Fig. 1
The overlooking structure diagram set, the structural schematic diagram that Fig. 4 is the central aerating and exhaust device that an embodiment of the present invention provides.
As Figure 1-Figure 4, rotation oil-gas sealing device provided by the invention includes sealed valve body 1, and sealed valve body 1 is in ring
Shape, sealed valve body 1 are equipped with the central through hole being inserted into for Intake shaft 9, and the annular inner wall of the sealed valve body 1 is equipped with along its diameter side by side
First groove, second groove to extension have default spacing, are set in the first groove between first groove and second groove
Have first of a hermetic seal 2 and second hermetic seal 3, first of hermetic seal 2 and second hermetic seal 3 in a ring, first of gas
Sealing 2 and second hermetic seal 3 are disposed side by side in first groove, and oil seal 4 is equipped in the second groove, and oil seal 4 is in
Annular, the sealed valve body 1 are sealing gland end axially adjacent to one end of first of hermetic seal 2 and the second hermetic seal 3；
The sealed valve body 1 is oil sealing end axially adjacent to one end of the oil seal 4.
The inner wall of sealed valve body 1 of the rotation oil-gas sealing device provided by the invention in annular is equipped with twice hermetic seal side by side
With oil seal 4, after Intake shaft 9 is inserted into sealed valve body 1, hermetic seal and oil seal 4 are fitted tightly over the surface of Intake shaft 9, gas
Rotary dynamic seal is formed between sealing and oil seal 4 and Intake shaft 9, hermetic seal includes that first in same groove is airtight
Envelope 2 and second hermetic seal 3, twice hermetic seal substantially increase compared with the larger lip seal of soft rubber together of thickness
Sealing effect；Hermetic seal and oil seal 4 are mounted in the radial notch 6 of sealed valve body 1, and this structure occupies little space, airtight
Envelope and oil seal 4 do not need external force and are pressed on Intake shaft 9, and the permission jerk value of Intake shaft 9 is larger, hermetic seal and oil seal 4
Frictional force between Intake shaft 9 is small, it is small to seize power, and then lip is not easy to damage, long lifespan.
In preferred scheme, first of hermetic seal 2 and the oblique setting of the second hermetic seal 3 are described
The root of first of hermetic seal 2 and second hermetic seal 3 is in the first groove, first of hermetic seal 2 and second
The hermetic seal lip of road hermetic seal 3 is tilted to the sealing gland end.The sealing gland end of the sealed valve body 1 is the one of high pressure gas
The hermetic seal lip of side, first of hermetic seal 2 and second hermetic seal 3 is towards the side of high pressure gas, the air pressure of high pressure gas
Bigger, hermetic seal lip is bonded tighter with the outer surface of Intake shaft 9, and sealing effect is better.
In preferred scheme, the oil seal 4 is obliquely arranged, and the root of the oil seal 4 is embedded in second ditch
In slot, the oil seal lip of the oil seal 4 is tilted to the oil sealing end.The oil sealing end of the sealed valve body 1 is oil inlet side,
For 4 lip of oil seal of oil seal 4 towards oil inlet side, the pressure of hydraulic oil is bigger, the outer surface of oil seal 4 lip and Intake shaft 9
What is be bonded is tighter, and sealing effect is better.
In preferred scheme, as shown in figure 3, the end face at the sealing gland end of the sealed valve body 1, which is equipped with, is no less than one
Radial notch 6, radial notch 6 can form the radial passage of high pressure gas.
In more optimal solution, is set on the end face at the sealing gland end of the sealed valve body 1 there are four radial notch 6, can be formed
The radial passage of four road high pressure gas so that high pressure gas is quickly through sealed valve body 1.
In more optimal solution, four radial notches 6 are uniformly distributed in the annular end at the sealing gland end of the sealed valve body 1
Face can make high pressure gas quickly and evenly by sealed valve body 1.
In preferred scheme, the annular outer wall of the sealed valve body 1 is equipped with O-ring seal 5, in specific scheme, close
The annular outer wall for sealing valve body 1 is equipped with ring-shaped groove, O-ring seal 5 is mounted in the ring-shaped groove, rotation provided by the invention
Turn oil-gas sealing device to be packed into air inlet valve body 7, O-ring seal 5 forms static seal between sealed valve body 1 and air inlet valve body 7.
In preferred scheme, first of hermetic seal 2, the second hermetic seal 3, the oil seal 4 are by poly- four
Vinyl fluoride (PTFE) material is made.Low, the corrosion-resistant, high temperature resistant with friction coefficient of seal lip made of polytetrafluoroethylene material
The features such as, improve its adaptability to various limit adverse circumstances.In addition, first of hermetic seal 2, the second
Identical structure size may be used in hermetic seal 3, the oil seal 4, to increase versatility and interchangeability.
The present invention also provides a kind of central aerating and exhaust devices, as shown in figure 4, the center aerating and exhaust device includes intake valve
Body 7, Intake shaft 9 and first rotate oil-gas sealing device 8 and second and rotate oil-gas sealing device 10, and the first rotation oil gas is close
Seal apparatus 8 and described second rotates the rotation oil-gas sealing device that oil-gas sealing device 10 is above-mentioned.
The air inlet valve body 7 is fixed on wheel hub, and first axis hole is axially and radially respectively equipped on the air inlet valve body 7
71 and first radial hole 72, first axis hole 71 be connected to the first radial hole 72, first axis hole 71 is for installing the first rotation
Oil-gas sealing device 8, second rotates oil-gas sealing device 10 and Intake shaft 9, and the first radial hole 72 leads to tire for connecting
Air flue.
It is described first rotation oil-gas sealing device 8 with it is described second rotate oil-gas sealing device 10 be mounted side by side in it is described into
In the first axis hole 71 of air valve body 7, and the sealing gland end of the first rotation oil-gas sealing device 8 rotates oil gas with described second
The sealing gland end of sealing device 10 is oppositely arranged, and the first rotation oil-gas sealing device 8 rotates sealing hydrocarbons dress with described second
Air inlet cavity is formed between setting 10.
The second axial hole 91 and the second radial hole 92 for being axially and radially respectively equipped with connection of the Intake shaft 9, specifically
Scheme in, the second axial hole 91 is connected to the air flue on knuckle, the Intake shaft 9 be inserted into first rotation oil-gas sealing device
8 and second rotation oil-gas sealing device 10 central through hole, the second radial hole 92 be located at first rotation oil-gas sealing device 8 gas
Between sealing and the hermetic seal of the second rotation oil-gas sealing device 10, and second radial hole 92 and the air inlet cavity, institute
State the connection of the first radial hole.
High pressure gas is entered by the static Intake shaft 9 of opposite knuckle by the first rotation oil-gas sealing device 8 and institute
The air inlet cavity formed between the second rotation oil-gas sealing device 10 is stated, finally by the first radial hole 72 on air inlet valve body 7
Air inlet valve body 7 is entered, air inlet valve body 7 can follow wheel hub to rotate freely through, to realize high pressure gas by quiet to dynamic
Conversion.
Center aerating and exhaust device provided by the invention each rotates sealing hydrocarbons using two rotation oil-gas sealing devices
Device is an independent module, can carry out independently installed and replace, simple in structure, is easily installed arrangement, and function
It is reliable and stable.
Above certain exemplary embodiments that the present invention is only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of protection domain.
Claims (10)
1. a kind of rotation oil-gas sealing device, which is characterized in that including sealed valve body, the annular inner wall of the sealed valve body is side by side
Equipped with first groove, the second groove radially extended, first of hermetic seal and second gas are equipped in the first groove
Sealing, the second groove is interior to be equipped with oil seal, and the sealed valve body is axially adjacent to first of hermetic seal and described second
One end of road hermetic seal forms sealing gland end；The sealed valve body forms oil sealing end axially adjacent to described oil-tightening one end.
2. rotation oil-gas sealing device according to claim 1, which is characterized in that first of hermetic seal and described
Two hermetic seals are obliquely arranged, and the root of first of hermetic seal and second hermetic seal is embedded in the first groove
Interior, the hermetic seal lip of first of hermetic seal and second hermetic seal is tilted to the sealing gland end.
3. rotation oil-gas sealing device according to claim 2, which is characterized in that the oil seal is obliquely arranged,
In the second groove, the oil-tightening oil seal lip is tilted to the oil sealing end for the oil-tightening root.
4. rotation oil-gas sealing device according to claim 1, which is characterized in that the end at the sealing gland end of the sealed valve body
Face is equipped with more than one radial notch.
5. rotation oil-gas sealing device according to claim 4, which is characterized in that the end at the sealing gland end of the sealed valve body
Radial notch there are four being set on face.
6. rotation oil-gas sealing device according to claim 5, which is characterized in that four radial notches are uniformly distributed
In on the end face at the sealing gland end of the sealed valve body.
7. rotation oil-gas sealing device according to claim 1, which is characterized in that the annular outer wall of the sealed valve body is set
There is O-ring seal.
8. rotation oil-gas sealing device according to claim 1, which is characterized in that first of hermetic seal, described
Two hermetic seals, the oil seal are made of polytetrafluoroethylene material.
9. a kind of center aerating and exhaust device, which is characterized in that including air inlet valve body, Intake shaft and two such as claim 1-8
Any one of described in rotation oil-gas sealing device, it is described two rotation oil-gas sealing devices sealing gland ends it is opposite, and with it is described
Intake shaft is coaxially installed in the intake valve body.
10. center aerating and exhaust device according to claim 9, which is characterized in that on the air inlet valve body axially and radially
It is respectively equipped with first axis hole and the first radial hole of connection, described two rotation oil-gas sealing devices are installed on the intake valve
In the first axis hole of body, air inlet cavity is formed between described two rotation oil-gas sealing devices；The axial direction of the Intake shaft and
Radial direction is respectively equipped with the second axial hole and the second radial hole of connection, second radial hole, the air inlet cavity, described first
Radial hole is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946324.2A CN108757948A (en) | 2018-08-17 | 2018-08-17 | Rotate oil-gas sealing device and central aerating and exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946324.2A CN108757948A (en) | 2018-08-17 | 2018-08-17 | Rotate oil-gas sealing device and central aerating and exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757948A true CN108757948A (en) | 2018-11-06 |
Family
ID=63967116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810946324.2A Pending CN108757948A (en) | 2018-08-17 | 2018-08-17 | Rotate oil-gas sealing device and central aerating and exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757948A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764135A (en) * | 2018-12-25 | 2019-05-17 | 陕西润泽橡胶制品有限公司 | A kind of oil gas envelope of automatic pneumatic tire sealing |
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|---|---|---|---|---|
| KR20010109702A (en) * | 2000-06-02 | 2001-12-12 | 박재훈 | Rotary lip type seal assembly |
| CN102022545A (en) * | 2009-09-22 | 2011-04-20 | 中国北方车辆研究所 | Combined type oil-gas seal |
| CN102490549A (en) * | 2011-12-26 | 2012-06-13 | 中国重汽集团济南动力有限公司 | Rotary sealing device |
| WO2012084690A1 (en) * | 2010-12-23 | 2012-06-28 | Agco International Gmbh | Tyre inflation |
| CN202463475U (en) * | 2011-12-30 | 2012-10-03 | 中国重汽集团济南动力有限公司 | Wheel side reduction axle with novel rotary sealing device structure |
| CN202708068U (en) * | 2012-06-28 | 2013-01-30 | 湖北航天技术研究院特种车辆技术中心 | Rotary sealing device |
| CN105626870A (en) * | 2016-03-10 | 2016-06-01 | 中国北方车辆研究所 | Rotary sealing structure with bidirectional sealing function |
| CN205896176U (en) * | 2016-08-01 | 2017-01-18 | 上海力行工程技术发展有限公司 | Articulated seal assembly |
| CN207470776U (en) * | 2017-11-24 | 2018-06-08 | 宁波美豪汽车部件有限公司 | A kind of polytetrafluoroethylene (PTFE) lip-type packing of Multi-medium sealing |
| CN208634381U (en) * | 2018-08-17 | 2019-03-22 | 北京北方创成车辆技术发展有限公司 | Rotate oil-gas sealing device and central aerating and exhaust device |
-
2018
- 2018-08-17 CN CN201810946324.2A patent/CN108757948A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010109702A (en) * | 2000-06-02 | 2001-12-12 | 박재훈 | Rotary lip type seal assembly |
| CN102022545A (en) * | 2009-09-22 | 2011-04-20 | 中国北方车辆研究所 | Combined type oil-gas seal |
| WO2012084690A1 (en) * | 2010-12-23 | 2012-06-28 | Agco International Gmbh | Tyre inflation |
| CN102490549A (en) * | 2011-12-26 | 2012-06-13 | 中国重汽集团济南动力有限公司 | Rotary sealing device |
| CN202463475U (en) * | 2011-12-30 | 2012-10-03 | 中国重汽集团济南动力有限公司 | Wheel side reduction axle with novel rotary sealing device structure |
| CN202708068U (en) * | 2012-06-28 | 2013-01-30 | 湖北航天技术研究院特种车辆技术中心 | Rotary sealing device |
| CN105626870A (en) * | 2016-03-10 | 2016-06-01 | 中国北方车辆研究所 | Rotary sealing structure with bidirectional sealing function |
| CN205896176U (en) * | 2016-08-01 | 2017-01-18 | 上海力行工程技术发展有限公司 | Articulated seal assembly |
| CN207470776U (en) * | 2017-11-24 | 2018-06-08 | 宁波美豪汽车部件有限公司 | A kind of polytetrafluoroethylene (PTFE) lip-type packing of Multi-medium sealing |
| CN208634381U (en) * | 2018-08-17 | 2019-03-22 | 北京北方创成车辆技术发展有限公司 | Rotate oil-gas sealing device and central aerating and exhaust device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764135A (en) * | 2018-12-25 | 2019-05-17 | 陕西润泽橡胶制品有限公司 | A kind of oil gas envelope of automatic pneumatic tire sealing |
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