CN201339716Y - Shaft seal - Google Patents
Shaft seal Download PDFInfo
- Publication number
- CN201339716Y CN201339716Y CNU2008201581223U CN200820158122U CN201339716Y CN 201339716 Y CN201339716 Y CN 201339716Y CN U2008201581223 U CNU2008201581223 U CN U2008201581223U CN 200820158122 U CN200820158122 U CN 200820158122U CN 201339716 Y CN201339716 Y CN 201339716Y
- Authority
- CN
- China
- Prior art keywords
- sealing lip
- retainer
- axle envelope
- runddichtringo
- sealing
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 210000004907 gland Anatomy 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000005060 rubber Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Compressor (AREA)
Abstract
The utility model discloses a shaft seal, which simplifies the manufacturing process of the shaft seal and improves the form of the retainer at the same time, and ensures the shaft seal have the function of strengthening ring. The shaft seal has the technical scheme that the shaft seal comprises a first sealing lip, a second sealing lip, a retainer and a backpressure ring, wherein the retainer is arranged between the first sealing lip and the second sealing lip; the first sealing lip, the retainer and the second sealing lip are tightly impacted by the backpressure ring; and a sealing member is arranged between the second sealing lip and the retainer. The shaft seal can be applied in the shaft seal of the compressor.
Description
Technical field
The utility model relates to the axle envelope on a kind of fluid machinery, relates in particular to compressor shaft gland.
Background technique
The axle envelope of compressor is enclosed within on the main shaft circumference, and the inner space and the compressor space outerpace of compressor housing separated.Because the space is a refrigerant fluid in the housing, when compressor operating, temperature and air pressure in the housing all raise, and rubber parts, the resin piece pressurized that is heated produces distortion, and the increase of pressure reduction causes the matching gap leakage between inner and axle envelope and main shaft, the housing from the axle envelope of fluid in the housing easily.
China publication application CN1417504A is an axle envelope of the prior art, by first sealing lip 5 of inboard, be embedded in the retainer 8 that is used to keep the sealing lip shape in first sealing lip, the stiffening ring 12 that is used to support first sealing lip, second sealing lip 15, and be used for backboard ring 20 that first and second sealing lips are compressed.
Retainer is a metallic material, and first sealing lip is a rubber material, and the effect of retainer is the shape that keeps first sealing lip, prevents to produce gross distortion behind the pressurized and causes the housing inner fluid from the clearance leakage between first sealing lip and the housing; Simultaneously in order to prevent retainer and material hardness greater than the leakage between the stiffening ring of first sealing lip, another part of first sealing lip stretches out to seal between retainer and the stiffening ring and contacts.For reaching this purpose, need the retainer of a lateral bending song is embedded sealing lip, need process through the filled rubber of complexity, technological requirement is higher.
The model utility content
The purpose of this utility model is to simplify the manufacturing process of axle envelope, has proposed a kind of bearing, has improved the form of retainer when simplifying axle envelope manufacturing process, and has made it to have concurrently the function of stiffening ring.
The technical solution of the utility model is: the utility model has disclosed a kind of envelope, the back pressure ring that comprises first sealing lip, second sealing lip, the retainer between this first sealing lip and this second sealing lip, this first sealing lip, this retainer and this second sealing lip are compressed, wherein, between this second sealing lip and this retainer, be provided with Sealing.
Above-mentioned axle envelope, wherein, the sealing part is the O RunddichtringO that rubber is made.
Above-mentioned axle envelope, wherein, the radially inner side of this O RunddichtringO is provided with metal supporting rings, and the axial width under this O RunddichtringO nature is greater than this metal supporting rings.
Above-mentioned axle envelope wherein, is provided with dististyle between the curved end of this back pressure ring and this retainer.
Above-mentioned axle envelope, wherein, this retainer is arranged to the axial notch shape, and this O RunddichtringO is packed in this groove.
Above-mentioned axle envelope, wherein, the radially inner side of this O RunddichtringO is offered groove, the metal supporting rings of packing in this groove.
Above-mentioned axle envelope, wherein, this retainer has big ring surface and little ring surface, the body seal portion of this big this first sealing lip of ring surface radial support, this little ring surface supports the main shaft seal portion of this first sealing lip.
Above-mentioned axle envelope wherein, is fixed with Bond between this retainer and this first sealing lip.
Above-mentioned axle envelope, wherein, this envelope is a compressor shaft gland.
The utility model contrast prior art has following beneficial effect: the utility model is by being provided with Sealing between second sealing lip and retainer, make that the manufacturing process of axle envelope is simplified, seal with bonding or the form that compresses between the retainer of axle envelope and first sealing lip simultaneously and fix, improve the form of retainer, made it to have concurrently the function of stiffening ring.
Description of drawings
Fig. 1 is the structural drawing of existing compressor shaft gland.
Fig. 2 is first embodiment's of a compressor shaft gland of the present utility model structural drawing.
Fig. 3 is second embodiment's of a compressor shaft gland of the present utility model structural drawing.
Fig. 4 is the 3rd embodiment's of compressor shaft gland of the present utility model partial structurtes figure.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
First embodiment of compressor shaft gland of the present utility model
Fig. 2 shows first embodiment's of compressor shaft gland of the present utility model structure.See also Fig. 2, the compressor shaft gland 30 of present embodiment is enclosed within on main shaft 1 circumference, and the inner space A and the compressor space outerpace B of compressor housing 2 separated.Axle envelope 30 comprises first sealing lip of making near the synthetic rubber of inner space A 31 and second sealing lip of making from inner space A fluororesin far away slightly 33 (also can be called seal ring).Between first sealing lip 31 and second sealing lip 33, retainer 32 is set.The big ring surface 32a of retainer supports the 31a of body seal portion of first sealing lip 31, and annular sealing surface and housing endoporus are kept in touch, little ring surface 32b supports the 31b of main shaft seal portion of first sealing lip 31, and makes the 31b of main shaft seal portion that the trend of radially outward expansion be arranged.
Between the retainer 32 and second sealing lip 33, seal ring 37 is set, and at the radially inner side of seal ring 37 with metal supporting rings 38 fixed seal rings 37.Near the side of compressor space outerpace B with back pressure ring 34 with first sealing lip 31, retainer 32 and second sealing lip, 33 axial compression.Between the curved end 32c of back pressure ring 34 and retainer 32, also can add dististyle 36.
The second sealing lip 33 PTFE material.Seal ring 37 in the present embodiment is the O RunddichtringO, and O RunddichtringO 37 makes O RunddichtringO 37, retainer 32 and back pressure ring 34 fully contact without the axial width of the axial width under the nature of distortion greater than metal ring, reaches excellent sealing effect.The contact segment of the retainer 32 and first sealing lip 31 bonds with Bond, increases both stability in contact.
Second embodiment of compressor shaft gland of the present utility model
Fig. 3 shows second embodiment's of compressor shaft gland of the present utility model structure.See also Fig. 3, the compressor shaft gland 40 of present embodiment is enclosed within on the main shaft 1 ' circumference, and the inner space A and the compressor space outerpace B of compressor housing 2 ' separated.Axle envelope 40 comprises first sealing lip of making near the synthetic rubber of inner space A 41 and second sealing lip of making from inner space A fluororesin far away slightly 43 (also can be called seal ring).Between first sealing lip 41 and second sealing lip 43, retainer 42 is set.The big ring surface 42a of retainer supports the 41a of body seal portion of first sealing lip 41, and annular sealing surface and housing endoporus are kept in touch, little ring surface 42b supports the 41b of main shaft seal portion of first sealing lip 41, and makes the 41b of main shaft seal portion that the trend of radially outward expansion be arranged.
Between the retainer 42 and second sealing lip 43 seal ring 47 is set, retainer 42 is arranged to the axial notch shape, and seal ring 47 is packed among the 42d of recess supports portion of retainer 42.Near the side of compressor space outerpace B with back pressure ring 44 with first sealing lip 41, retainer 42 and second sealing lip, 43 axial compression.Between the curved end 42c of back pressure ring 44 and retainer 42, also can add dististyle 46.
The second sealing lip 43 PTFE material.Seal ring 47 in the present embodiment is the O RunddichtringO, and O RunddichtringO 47 makes O RunddichtringO 47, retainer 42 and back pressure ring 44 fully contact without the axial width of the axial width under the nature of distortion greater than metal ring, reaches excellent sealing effect.The contact segment of the retainer 42 and first sealing lip 41 bonds with Bond, increases both stability in contact.
The 3rd embodiment of compressor shaft gland of the present utility model
Fig. 4 shows the 3rd embodiment's of compressor shaft gland of the present utility model partial structurtes, the i.e. partial structurtes of fixed seal ring.See also Fig. 4, offer groove in the O RunddichtringO 57, metal supporting rings 58 is embedded in the groove.Remaining part is all identical with first embodiment, does not repeat them here.
Axle envelope of the present utility model can also be used in other field except the compressor shaft gland that the foregoing description is mentioned.The foregoing description provides to those of ordinary skills and realizes or use of the present utility model; those of ordinary skills can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (9)
1, a kind of envelope, the back pressure ring that comprises first sealing lip, second sealing lip, the retainer between this first sealing lip and this second sealing lip, this first sealing lip, this retainer and this second sealing lip are compressed, it is characterized in that, between this second sealing lip and this retainer, be provided with Sealing.
2, axle envelope according to claim 1 is characterized in that the sealing part is the O RunddichtringO that rubber is made.
3, axle envelope according to claim 2 is characterized in that the radially inner side of this O RunddichtringO is provided with metal supporting rings, and the axial width under this O RunddichtringO nature is greater than this metal supporting rings.
4, axle envelope according to claim 3 is characterized in that, between the curved end of this back pressure ring and this retainer dististyle is set.
5, axle envelope according to claim 2 is characterized in that this retainer is arranged to the axial notch shape, and this O RunddichtringO is packed in this groove.
6, axle envelope according to claim 2 is characterized in that the radially inner side of this O RunddichtringO is offered groove, the metal supporting rings of packing in this groove.
7, axle envelope according to claim 1 is characterized in that this retainer has big ring surface and little ring surface, the body seal portion of this big this first sealing lip of ring surface radial support, and this little ring surface supports the main shaft seal portion of this first sealing lip.
8, axle envelope according to claim 1 is characterized in that, fixes with Bond between this retainer and this first sealing lip.
9, according to each described axle envelope in the claim 1～8, it is characterized in that this envelope is a compressor shaft gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201581223U CN201339716Y (en) | 2008-12-29 | 2008-12-29 | Shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201581223U CN201339716Y (en) | 2008-12-29 | 2008-12-29 | Shaft seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339716Y true CN201339716Y (en) | 2009-11-04 |
Family
ID=41235262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201581223U Expired - Fee Related CN201339716Y (en) | 2008-12-29 | 2008-12-29 | Shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339716Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583652A (en) * | 2012-08-23 | 2015-04-29 | 伊格尔工业股份有限公司 | Sealing device |
| CN104704271A (en) * | 2013-01-29 | 2015-06-10 | 伊格尔工业股份有限公司 | Sealing device |
| CN107166040A (en) * | 2017-05-31 | 2017-09-15 | 广州流体密封科技有限公司 | A kind of rotary shaft sealing of cylindrical self sealss |
-
2008
- 2008-12-29 CN CNU2008201581223U patent/CN201339716Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583652A (en) * | 2012-08-23 | 2015-04-29 | 伊格尔工业股份有限公司 | Sealing device |
| US9695935B2 (en) | 2012-08-23 | 2017-07-04 | Eagle Industry Co., Ltd. | Sealing device |
| CN110397742A (en) * | 2012-08-23 | 2019-11-01 | 伊格尔工业股份有限公司 | Sealing means |
| CN104704271A (en) * | 2013-01-29 | 2015-06-10 | 伊格尔工业股份有限公司 | Sealing device |
| US9297457B2 (en) | 2013-01-29 | 2016-03-29 | Eagle Industry Co., Ltd. | Sealing device |
| CN107166040A (en) * | 2017-05-31 | 2017-09-15 | 广州流体密封科技有限公司 | A kind of rotary shaft sealing of cylindrical self sealss |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9581248B2 (en) | Mechanical seal | |
| JP5710053B2 (en) | Sealing device | |
| US20080079222A1 (en) | Temperature adaptive radial shaft seal assemblies using shape memory alloy elements | |
| CN102537360B (en) | Assembled half-exposed framework high-pressure seal ring | |
| CN103109117A (en) | Rotary seal arrangement | |
| CN102483163A (en) | Seal And Seal Arrangement | |
| KR20060130761A (en) | Reciprocating Shaft Sealing Device | |
| CN201339716Y (en) | Shaft seal | |
| CN1761828B (en) | bonded polytetrafluoroethylene radial shaft seal | |
| JP4855936B2 (en) | Sealing device | |
| CN103216625B (en) | Shaft seal, in particular a radial shaft seal | |
| CN203202226U (en) | Elastic sealing ring for metal rubber | |
| JP2000074223A (en) | Oil seal | |
| CN109780212A (en) | Seals | |
| KR101188240B1 (en) | Seal device | |
| CN213298246U (en) | A structure for increasing the pre-tightening force of a reciprocating pump plunger packing assembly | |
| CN104343986A (en) | Sealing assembly | |
| CN203082218U (en) | A high and low temperature universal welded metal bellows sealing device | |
| CN208934876U (en) | A kind of compression assembly and compressor | |
| CN201810773U (en) | Piston seal element of arc-shaped seal surface of rectangular supporting ring | |
| CN102003434A (en) | Hydraulic component with at least two pressure-differential areas and at least one functional element | |
| CN202007892U (en) | Rotating combined oil seal used under medium and high pressures | |
| CN207514239U (en) | A kind of special-shaped seal ring | |
| CN205047493U (en) | Automobile water pump seal assembly | |
| CN205047850U (en) | Mechanical seal assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Sanden Auto Air-conditioning Co., Ltd. Assignor: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai Contract record no.: 2010990000546 Denomination of utility model: Shaft seal ring Granted publication date: 20091104 License type: Exclusive License Record date: 20100727 |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 200025 Shanghai city Luwan District Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: Shanghai City 200025 Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20171229 |