CN203703438U - Dual-metal rubber composite sealing ring for railway vehicle flange - Google Patents
Dual-metal rubber composite sealing ring for railway vehicle flange Download PDFInfo
- Publication number
- CN203703438U CN203703438U CN201420080339.2U CN201420080339U CN203703438U CN 203703438 U CN203703438 U CN 203703438U CN 201420080339 U CN201420080339 U CN 201420080339U CN 203703438 U CN203703438 U CN 203703438U
- Authority
- CN
- China
- Prior art keywords
- ring
- rubber
- down part
- metal down
- metal
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 229920001967 Metal rubber Polymers 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 64
- 239000002184 metal Substances 0.000 claims abstract description 64
- 229920001971 elastomer Polymers 0.000 claims abstract description 59
- 239000005060 rubber Substances 0.000 claims abstract description 59
- 239000007769 metal material Substances 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 229910001374 Invar Inorganic materials 0.000 claims abstract description 5
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a dual-metal rubber composite sealing for a railway vehicle flange. The sealing ring consists of a metal insert outer ring, a metal insert inner ring and a rubber ring arranged between the metal insert outer ring and the metal insert inner ring, wherein the metal insert outer ring and the metal insert inner ring are integrally molded by vulcanizing after being bonded with the rubber ring respectively; the metal insert outer ring is made of a metal material with a high linear expansion coefficient; the metal insert inner ring is made of a metal material with lower linear expansion coefficient. The outer side of the rubber ring is made of an aluminum alloy with a high linear expansion coefficient, and the inner side of the rubber ring is made of invar steel with an extremely-low linear expansion coefficient, the metal outer ring is deformed for compressing rubber, and the metal inner ring is used for supporting the rubber in a low-temperature environment, thereby ensuring the sealing reduction of a rubber end face, and increasing the contact stress. Moreover, by bonding the metal embedded outer ring and the rubber ring, the sealing ring is prevented from being stretched and extruded in the radial direction during installation and use, leading to insufficient reduction in the vertical direction and loss of the sealing effect.
Description
Technical field
The utility model belongs to seal ring technical field, particularly bimetal rubber composite sealing ring for a kind of railway vehicle flange.
Background technique
2008 start, and railway vehicle flange uses E shape seal ring 4 to replace original rectangular seal, and it is installed as shown in Figure 1.E shape seal ring has DN10, DN15, DN20, DN25 and five kinds of models of DN32, guarantee preferably the pneumostop of freight car braking piping, braking pipe arrangement is sewed phenomenon obvious decline, but in severe cold area and winter low temperature period, adopts E shape seal ring or the even the problems referred to above that exist.
Model utility content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of and guaranteeing under the prerequisite of interchangeability, can further improve the railway vehicle flange bimetal rubber composite sealing ring of flange seal reliability.
The technical solution of the utility model is achieved in that a kind of railway vehicle flange bimetal rubber composite sealing ring, it is characterized in that: described seal ring by metal down part outer ring, metal down part inner ring and be arranged on metal down part outer ring and metal down part inner ring between rubber ring form, described metal down part outer ring and metal down part inner ring respectively with the bonding rear overall sulfidization molding of rubber ring, described metal down part outer ring adopts the large metallic material of linear expansion coeffcient to make, and described metal down part inner ring adopts the little metallic material of linear expansion coeffcient to make.
Bimetal rubber composite sealing ring for railway vehicle flange described in the utility model, described in it, rubber ring upper and lower end face is arc structure.
Bimetal rubber composite sealing ring for railway vehicle flange described in the utility model, described in it, metal down part outer ring adopts aluminum alloy, and described metal down part inner ring adopts invar, and described rubber ring adopts nitrile butadiene rubber or fluorosioloxane rubber.
Bimetal rubber composite sealing ring for railway vehicle flange described in the utility model, described in it, the height H 1 of rubber ring is 6.3mm～6.5mm, the height H 2 of described metal down part outer ring and metal down part inner ring is 4.7mm～4.9 mm, described rubber ring two ends are arranged symmetrically with respect to the raised area of metal down part outer ring both ends of the surface, and described the raised area height h is 0.7 mm～0.9 mm.
Bimetal rubber composite sealing ring for railway vehicle flange described in the utility model, described in it, the height H 1 of rubber ring is 6.4mm, the height H 2 of described metal down part outer ring and metal down part inner ring is 4.8mm, and described rubber ring two ends are 0.8mm with respect to the raised area height h of metal down part outer ring both ends of the surface.
The utility model is by adopting the larger aluminum alloy of linear expansion coeffcient in rubber ring outside, adopt linear expansion coeffcient minimum invar in inner side, like this under low temperature environment, metal race deformation compressing rubber, metal inner ring support rubber, thereby guarantee rubber end face sealing pressing amount, increase contact stress, and pass through the bonding of metal down part outer ring and rubber ring, when avoiding installing and using, seal ring is radially being stretched and is extruding, and causes Vertical direction to press quantity not sufficient, loses sealing effect.
Accompanying drawing explanation
Fig. 1 is the scheme of installation of existing E shape seal ring.
Fig. 2 is structural representation of the present utility model.
Mark in figure: 1 is metal down part outer ring, 2 is metal down part inner ring, and 3 is rubber ring, and 4 is E shape seal ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Fig. 2, bimetal rubber composite sealing ring for a kind of railway vehicle flange, described seal ring by metal down part outer ring 1, metal down part inner ring 2 and be arranged on metal down part outer ring 1 and metal down part inner ring 2 between rubber ring 3 form, described metal down part outer ring 1 and metal down part inner ring 2 respectively with the bonding rear overall sulfidization molding of rubber ring 3, described metal down part outer ring 1 adopts the metallic material that linear expansion coeffcient is large to make, and described metal down part inner ring 2 adopts the metallic material that linear expansion coeffcient is little to make; Compress symmetrically for realizing balance, described rubber ring 3 upper and lower end faces are arc structure, and it can make sealing surface become linear sealing by plane sealing, has improved sealing effect, and solve the inhomogeneous problem of decrement.
Wherein, described metal down part outer ring 1 adopts aluminum alloy, and described metal down part inner ring 2 adopts invar, and described rubber ring 3 adopts nitrile butadiene rubber or fluorosioloxane rubber.In the time that rubber ring adopts nitrile butadiene rubber, sealing circle can adapt to the Environmental Conditions requirement of-50 ℃～+ 70 ℃; In the time that rubber ring adopts fluorosioloxane rubber, sealing circle can adapt to the Environmental Conditions requirement of-60 ℃～+ 200 ℃.
The height H 1 of described rubber ring 3 is 6.3mm～6.5mm, the height H 2 of described metal down part outer ring 1 and metal down part inner ring 2 is 4.7mm～4.9 mm, described rubber ring 3 two ends are arranged symmetrically with respect to the raised area of metal down part outer ring 1 both ends of the surface, be mainly compression symmetrically, described the raised area height h is 0.7 mm～0.9 mm.In the present embodiment, the height H 1 of described rubber ring 3 is 6.4mm, mainly to control end face decrement 20%～25%, the height H 2 of described metal down part outer ring 1 and metal down part inner ring 2 is 4.8mm, and described rubber ring 3 two ends are 0.8mm with respect to the raised area height h of metal down part outer ring 1 both ends of the surface.
Bimetal rubber composite sealing ring of the present utility model has low temp compensating function, can exchange completely with five kinds of model E shape seal rings with existing railway vehicle flange.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a bimetal rubber composite sealing ring for railway vehicle flange, it is characterized in that: described seal ring is by metal down part outer ring (1), metal down part inner ring (2) and be arranged on metal down part outer ring (1) and metal down part inner ring (2) between rubber ring (3) composition, described metal down part outer ring (1) and metal down part inner ring (2) respectively with the bonding rear overall sulfidization molding of rubber ring (3), described metal down part outer ring (1) adopts the large metallic material of linear expansion coeffcient to make, described metal down part inner ring (2) adopts the little metallic material of linear expansion coeffcient to make.
2. bimetal rubber composite sealing ring for railway vehicle flange according to claim 1, is characterized in that: described rubber ring (3) upper and lower end face is arc structure.
3. bimetal rubber composite sealing ring for railway vehicle flange according to claim 1 and 2, it is characterized in that: described metal down part outer ring (1) adopts aluminum alloy, described metal down part inner ring (2) adopts invar, and described rubber ring (3) adopts nitrile butadiene rubber or fluorosioloxane rubber.
4. bimetal rubber composite sealing ring for railway vehicle flange according to claim 3, it is characterized in that: the height H 1 of described rubber ring (3) is 6.3mm～6.5mm, the height H 2 of described metal down part outer ring (1) and metal down part inner ring (2) is 4.7mm～4.9 mm, described rubber ring (3) two ends are arranged symmetrically with respect to the raised area of metal down part outer ring (1) both ends of the surface, and described the raised area height h is 0.7 mm～0.9 mm.
5. bimetal rubber composite sealing ring for railway vehicle flange according to claim 4, it is characterized in that: the height H 1 of described rubber ring (3) is 6.4mm, the height H 2 of described metal down part outer ring (1) and metal down part inner ring (2) is 4.8mm, and described rubber ring (3) two ends are 0.8mm with respect to the raised area height h of metal down part outer ring (1) both ends of the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080339.2U CN203703438U (en) | 2014-02-25 | 2014-02-25 | Dual-metal rubber composite sealing ring for railway vehicle flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420080339.2U CN203703438U (en) | 2014-02-25 | 2014-02-25 | Dual-metal rubber composite sealing ring for railway vehicle flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703438U true CN203703438U (en) | 2014-07-09 |
Family
ID=51053883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420080339.2U Expired - Lifetime CN203703438U (en) | 2014-02-25 | 2014-02-25 | Dual-metal rubber composite sealing ring for railway vehicle flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703438U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492848A (en) * | 2022-09-18 | 2022-12-20 | 山东友邦科思茂新材料有限公司 | A kind of heat bearing and its manufacturing method |
| CN117605877A (en) * | 2023-11-23 | 2024-02-27 | 广东东方管业有限公司 | Self-anchored pipe and non-excavation directional crossing construction method thereof |
-
2014
- 2014-02-25 CN CN201420080339.2U patent/CN203703438U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492848A (en) * | 2022-09-18 | 2022-12-20 | 山东友邦科思茂新材料有限公司 | A kind of heat bearing and its manufacturing method |
| CN117605877A (en) * | 2023-11-23 | 2024-02-27 | 广东东方管业有限公司 | Self-anchored pipe and non-excavation directional crossing construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |