CN209245252U - A kind of integrated high pressure oil gas high speed rotation sealing - Google Patents
A kind of integrated high pressure oil gas high speed rotation sealing Download PDFInfo
- Publication number
- CN209245252U CN209245252U CN201821861231.1U CN201821861231U CN209245252U CN 209245252 U CN209245252 U CN 209245252U CN 201821861231 U CN201821861231 U CN 201821861231U CN 209245252 U CN209245252 U CN 209245252U
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- Prior art keywords
- sealing
- lip
- rubber
- rubber matrix
- high pressure
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 210000004907 gland Anatomy 0.000 claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000005060 rubber Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 5
- 241000469816 Varus Species 0.000 claims description 16
- 229920000459 Nitrile rubber Polymers 0.000 claims description 5
- 229920001774 Perfluoroether Polymers 0.000 claims description 2
- 229920000800 acrylic rubber Polymers 0.000 claims description 2
- 229920005560 fluorosilicone rubber Polymers 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 38
- 230000000694 effects Effects 0.000 abstract description 8
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 4
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000004073 vulcanization Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a kind of integral type high speed rotation sealings that can distinguish seals high pressure gas and gear lubricant simultaneously, including rubber matrix and metallic framework material.Metallic framework is bonded together by hot vulcanization process and rubber matrix after surface treatment, plays support and booster action.The utility model is designed using integral structure, and by oil seal lip and sealing gland lip set to one, seal configuration is compact, installs simple and convenient, the reliability raising of system, and production easy to process.The high/low temperature circulation impact of -45 DEG C of the utility model process~70 DEG C, and after 40,000 kilometers of bench test, either lubricating oil side or high pressure gas side, can realize good sealing effect, be mainly used in dual-use off-road tyre central air-charging and air-discharging system at present.
Description
Technical field
The utility model relates to rotatory sealing fields, and in particular to a kind of integrated high pressure oil gas high speed rotation sealing, it is main
To be applied to dual-use off-road tyre central air-charging and air-discharging system, also extend under other similar working conditions and answer
With.
Background technique
Center Tyre Inflation/Deflation System is the important guarantor of off-road vehicle traffic capacity under the conditions of various harshnesses, complex road condition
Card: when encountering the hypodynamic road conditions of friction such as mountainous region, marsh, snowfield, sandstone, pass through central air-charging and air-discharging system, reduce tire
Tire pressure increases the contact area of tire and ground, passes through vehicle；On paved road when driving, pass through central charge and discharge
Gas system improves tire pressure, reduces the contact area of tire and ground, while guaranteeing high vehicle speeds, reduces combustion
Oil consumption.
Due to the relative rotation between tire and bearing there are high speed, inflation/deflation between Yao Shixian off-road vehicle is advanced, wheel hub and
It must have a closed gas chamber between bearing, and dedicated lubrication and cooling system be installed in wheel hub, structure is extremely compact,
To meet requirement airtight and that oil is close simultaneously, this proposes high requirement to the structure design of oil gas envelope.
Firstly, oil gas envelope is mounted in wheel hub, high speed can be generated between sealing lip and bearing with tire high speed rotation
The linear velocity of relative friction, lip is up to 10~15m/s.
Secondly, oil gas envelope side is gas chamber, it is connected with tire, therefore there cannot be lubricating oil to deposit between sealing gland lip and bearing
Otherwise lubricating oil can flow into inside tires, cause irreversible destruction to tire, and a small amount of high temperature can only be applied in seal lip
Lubricating grease, so sealing gland and bearing the phenomenon that there are insufficient lubrications, with the increase of mileage travelled, lubricating grease is constantly lost, and two
Even there is the case where " dry friction " between person, sealing gland lip operating condition is exceedingly odious；It is wheel hub lube system that oil gas, which seals the other side,
System, there are a large amount of gear lubricant, oil seal lip will realize being fully sealed for lubricating oil, prevent it from leaking into sealing gland lip,
And then enter gas chamber and inside tires.
Again, what central air-charging and air-discharging system was housed at present is large truck, and tire specification size is larger, for reality
Now quickly punching is deflated, and system integral pressure is larger, and the operating pressure of sealing gland lip is more than 0.8Mpa.While high speed rotation,
The pressure for bearing 0.8Mpa or more proposes high requirement to the overall construction design of oil gas envelope.
Finally, vehicle hub internal structure is extremely compact, with the high speed rotation of tire, wheel hub position frictional heat generation is very
Seriously, it causes oil gas envelope to work at a high temperature of 150 DEG C for a long time, while being also contemplated that vehicle and working in extremely cold region, because
This oil gas envelope wants that good sealing performance can be kept in -45 DEG C~150 DEG C of temperature range.
Currently, similar rotary type oil hermetic seal, mostly uses fabricated structure: in an enclosure interior, being sequentially loaded into gas
Envelope, oil sealing are packed into multiple tracks sealing gland and oil sealing sometimes for sealing effect is guaranteed, more demanding to assembling process, easily because of assembly
The leakage that problem causes oil gas to seal, and higher cost, later maintenance are inconvenient.
Summary of the invention
The purpose of the utility model is to provide a kind of sealings of integrated high pressure oil gas high speed rotation, by oil seal lip and sealing gland
Lip is integrated on a sealing element, when solving rotary type oil hermetic seal in the prior art, needs to be packed into multiple tracks sealing gland and oil sealing,
The problems such as sealing effect is bad, higher cost.
To solve the above-mentioned problems, the technical solution adopted in the utility model is:
A kind of integrated high pressure oil gas high speed rotation sealing, including rubber matrix and metallic framework, the metallic framework packet
It includes the main body of annulus shape and the varus edge of main body upper end is set, the annulus main body and varus edge are integrally formed, annulus master
Body and varus marginal lappet are straight；The rubber matrix is coated on outside metallic framework, and rubber matrix includes the sealing gland lip on varus edge top
The open end of mouth and the oil seal lip in varus edge lower part, sealing gland lip and oil seal lip is convergence shape；The oil seal lip
Outer setting spring groove, spring groove is interior to be arranged preloading spring；The rubber matrix further includes sealing element outer rim shoulder, sealing element outer rim
The top of varus edge, sealing gland lip outer ring position is arranged in shoulder, constitutes one between sealing element outer rim shoulder 5 and sealing gland lip 6
The atmospheric pressure cavity of a annular.
Further, the material of the rubber matrix is nitrile rubber, hydrogenated nitrile-butadiene rubber, acrylic rubber, fluorine rubber
One kind of glue, fluorine silicone rubber, fluoroether rubber.
The advantages of the utility model:
1. the utility model is designed using integral structure, oil sealing and sealing gland are concentrated on the same sealing element, it can be same
When seals high pressure gas and gear lubricant, it is not necessary that multiple sealing lips are packed into same housing as conventional ASSEMBLE oil gas envelope
Interior, the utility model installation is simple and convenient, is readily disassembled replacement, avoids because oil leak, gas leakage are existing caused by mounting process is cumbersome
As the reliability of system improves；
2. the rotatory sealing of the utility model can in -45 DEG C~150 DEG C, guarantee good gear lubrication oil seal and
High-pressure gas seal effect within 1.5Mpa, rotatory sealing outer rim shoulder design a protrusion, effectively prevent oily, gas from sealing element
It is leaked between installation shell；Rotatory sealing can be with single use, in order to reach better seal effect, can also be with itself or its
Its seal combination uses.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, in figure, 1- rubber matrix；2- metallic framework material；3- preloading spring；4- oil seal lip；Outside 5- sealing element
Edge shoulder；6- sealing gland lip.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
A kind of integrated high pressure oil gas high speed rotation sealing shown in Figure 1, including rubber matrix 1 and metallic framework 2,
Again in the present embodiment, the material of rubber matrix 1 is nitrile rubber, and metallic framework 2 passes through hot vulcanization process after surface treatment
It is wrapped in inside rubber matrix 1, plays support and booster action.
The main body of metallic framework 2 including annulus shape and the varus edge that main body upper end is set, the annulus main body with it is interior
Edge integrated molding is turned over, annulus main body and varus marginal lappet are straight；Rubber matrix 1 is including the sealing gland lip 6 on varus edge top with including
Turn over the oil seal lip 4 of edge lower part, the open end of sealing gland lip 6 and oil seal lip 4 is convergence shape, can seal high pressure gas simultaneously
Body and gear lubricant；Spring groove is set outside oil seal lip 4, preloading spring 3 is set in spring groove；Rubber matrix 1 further includes close
The top of varus edge, 6 outer ring position of sealing gland lip, sealing element outer rim is arranged in sealing outer rim shoulder 5, sealing element outer rim shoulder 5
Shoulder 5 has a protrusion, and oil, gas is effectively prevent to leak between sealing element and shell.
The sealing sealing gland lip 6 of the utility model is the sealing of no spring self-tightening formula, enters sealing element outer rim in high pressure gas
Atmospheric pressure cavity between shoulder 5 and sealing gland lip 6, sealing gland lip 6 inwardly hold bearing tightly, realize sealing；When without high-pressure gas pressure,
Sealing gland lip 6 is flared out, and the enclasping force between bearing reduces, and frictional force reduces therewith, improves transmission efficiency, extend close
The service life of sealing.Be provided with preloading spring 3 outside oil seal lip 4, increase lip radial force, the center of preloading spring 3 with
Oil seal lip 4 has certain distance, so that preloading spring 3 has good " pump is inhaled " effect, guarantees the sealing effect of preloading spring 3
Fruit.
The high-pressure oil gas rotatory sealing of the utility model, by -45 DEG C~70 DEG C of high/low temperature circulation impact and 40,000
After the bench test of kilometer, either lubricating oil side or high pressure gas side can realize good sealing effect, satisfaction
Vehicle whole design requirement.
Claims (2)
1. a kind of sealing of integrated high pressure oil gas high speed rotation, which is characterized in that including rubber matrix (1) and metallic framework (2),
The metallic framework (2) includes the main body of annulus shape and is arranged in the varus edge of main body upper end, the annulus main body and varus
Edge is integrally formed, and annulus main body and varus marginal lappet are straight；The rubber matrix (1) is coated on metallic framework (2) outside, rubber matrix
It (1) include the sealing gland lip (6) on varus edge top and the oil seal lip (4) in varus edge lower part, sealing gland lip (6) and oil sealing
The open end of lip (4) is convergence shape；Spring groove is arranged in the oil seal lip (4) outside, and preloading spring is arranged in spring groove
(3)；The rubber matrix (1) further includes sealing element outer rim shoulder (5), and the upper of varus edge is arranged in sealing element outer rim shoulder (5)
Portion, sealing gland lip (6) outer ring position constitute an annular air pressure between sealing element outer rim shoulder (5) and sealing gland lip (6)
Chamber.
2. integrated high pressure oil gas high speed rotation seals according to claim 1, which is characterized in that the rubber matrix (1)
Material be nitrile rubber, hydrogenated nitrile-butadiene rubber, acrylic rubber, one kind of fluorubber, fluorine silicone rubber, fluoroether rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861231.1U CN209245252U (en) | 2018-11-12 | 2018-11-12 | A kind of integrated high pressure oil gas high speed rotation sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821861231.1U CN209245252U (en) | 2018-11-12 | 2018-11-12 | A kind of integrated high pressure oil gas high speed rotation sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245252U true CN209245252U (en) | 2019-08-13 |
Family
ID=67528000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821861231.1U Active CN209245252U (en) | 2018-11-12 | 2018-11-12 | A kind of integrated high pressure oil gas high speed rotation sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209245252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043316A (en) * | 2019-12-23 | 2020-04-21 | 西北橡胶塑料研究设计院有限公司 | Combined double-lip oil seal for miniature gear pump |
-
2018
- 2018-11-12 CN CN201821861231.1U patent/CN209245252U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043316A (en) * | 2019-12-23 | 2020-04-21 | 西北橡胶塑料研究设计院有限公司 | Combined double-lip oil seal for miniature gear pump |
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