CN201763959U - Labyrinth oil seal - Google Patents
Labyrinth oil seal Download PDFInfo
- Publication number
- CN201763959U CN201763959U CN2010202675761U CN201020267576U CN201763959U CN 201763959 U CN201763959 U CN 201763959U CN 2010202675761 U CN2010202675761 U CN 2010202675761U CN 201020267576 U CN201020267576 U CN 201020267576U CN 201763959 U CN201763959 U CN 201763959U
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- China
- Prior art keywords
- oil seal
- outer oil
- support frame
- framework
- seal
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a sealing piece, in particular to a labyrinth oil seal which comprises an outer oil seal and an inner oil seal, wherein the outer oil seal consists of an outer oil seal framework, an outer oil seal spring, a main sealing lip and dustproof lips; the dustproof lips are arranged at the axial direction and the bottom end surface direction of the outer oil seal; the inner oil seal consists of an inner oil seal framework; the mouths of the main sealing lip and the dustproof lips are tightly contacted with the inner oil seal framework, wherein the outer oil seal and the inner oil seal are connected with each other by a supporting framework; the inner surface of the outer oil seal framework is provided with rubber; the outer side surface of the supporting framework and the rubber on the outer oil seal framework are in interference fit; one corresponding end at the inner side of the supporting framework is provided with a supporting framework bent edge; a groove is arranged at the bottom end surface of the oil seal; the supporting framework bent edge is stretched into the groove; and the bottom end surface of the inner oil seal is provided with an end surface positioning seal lip. For the utility model, effect for resisting mud and water is good, the service life of the oil seal is prolonged, and the installation is convenient.
Description
Technical field
The utility model relates to a kind of Sealing, especially a kind of labyrinth oil seal.
Background technique
The working environment of vehicles such as tractor, engineering vehicle and rice field reaper generally exists a large amount of dusts and water, and therefore the oil sealing that is used for above-mentioned vehicle arrangement also must have dustproof preferably water effect when possessing good oil sealing effect.If adopt rotary shaft oil seal commonly used at present in rugged environment, to work, can cause the working life of oil sealing short, and anti-muddy water effect is poor, also can influence the proper functioning of vehicle arrangement when serious.
The model utility content
The purpose of this utility model is to propose a kind of labyrinth oil seal, and the anti-muddy water of this oil sealing is effective, has prolonged the working life of oil sealing, and is easy for installation.
The utility model is to adopt following technological scheme to realize: a kind of labyrinth oil seal, comprise outer oil seal and inner oil seal, outer oil seal comprises the outer oil seal skeleton, the outer oil seal spring, primary seal lip and dust excluder lips, axial and the bottom end face direction of outer oil seal is provided with dust excluder lips, inner oil seal comprises the inner oil seal skeleton, primary seal lip, the lip of dust excluder lips all closely contacts with the inner oil seal skeleton, wherein, interconnect by support frame between outer oil seal and the inner oil seal, the internal surface of outer oil seal skeleton is provided with rubber, rubber on the outer side surface of support frame and the outer oil seal skeleton is interference fit, the inboard end of corresponding support frame is provided with the support frame crimp, the inner oil seal bottom end face is provided with groove, and the support frame crimp stretches in the groove, and the inner oil seal bottom end face is provided with end face location sealing lip.
In the utility model, axially be provided with a dust excluder lips at least along outer oil seal.
Be marked with lubricant grease in the chamber between each road dust excluder lips of described outer oil seal.
Described support frame crimp and support frame are integral structure.
The beneficial effects of the utility model are: by adopting the design of mazy type dust excluder lips, improved the anti-muddy water effect of oil sealing greatly, also brought up to 1000 hours by 200-300 hour working life, guaranteed the proper functioning of vehicle arrangement; In addition, this oil sealing adopts integral installation formula structure, so it is convenient to install.
Description of drawings
Fig. 1 is a half sectional view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, this labyrinth oil seal comprises outer oil seal 1 and inner oil seal 3, outer oil seal 1 comprises the outer oil seal skeleton, outer oil seal spring 2, primary seal lip 4 and dust excluder lips 6, outer oil seal 1 is provided with at least one dust excluder lips 6 vertically, the bottom end face of outer oil seal 1 also is provided with dust excluder lips 6 simultaneously, inner oil seal comprises the inner oil seal skeleton, primary seal lip 4, the lip of dust excluder lips 6 all closely contacts with the inner oil seal skeleton, outer oil seal spring 2 provides radial force for outer oil seal 1, primary seal lip 4 is sealed, prevent entering of leakage of internal lubrication oil and outside muddy water, the multiple tracks dust excluder lips 6 that axially reaches the setting of bottom end face direction can improve the anti-muddy water effect of oil sealing.
Interconnect by support frame 10 between outer oil seal 1 and the inner oil seal 3.The internal surface of outer oil seal skeleton is provided with rubber, and the rubber on the outer side surface of support frame 10 and the outer oil seal skeleton is interference fit, thereby realizes being connected of support frame 10 and outer oil seal 1; Inboard one end of support frame 10 is provided with support frame crimp 7, and corresponding inner oil seal bottom end face is provided with groove 8, and support frame crimp 7 stretches in the groove 8, thereby realizes being connected of support frame 10 and inner oil seal 3.Inner oil seal 3 bottom end faces are provided with end face location sealing lip 9, the lip of end face location sealing lip 9 contacts with support frame 10, the sealing lip both can have been controlled the distance of outer oil seal, support frame and inner oil seal, played the installing and locating effect, can play preliminary anti-muddy water effect again.This oil sealing adopts integral installation formula structure, with outer oil seal, support frame and inner oil seal install in aggregates after, directly assembling is used on vehicle arrangement.The oil sealing that integral installation is good, its inner oil seal 3 can freely rotate relative to outer oil seal 1.Be marked with lubricant grease 5 in the chamber between each road dust excluder lips 6 of outer oil seal, lubricant grease 5 provides lubricated for inner oil seal 3 and outer oil seal 1 relatively rotate, and prolongs the working life of oil sealing.
Claims (4)
1. labyrinth oil seal, comprise outer oil seal and inner oil seal, outer oil seal comprises the outer oil seal skeleton, the outer oil seal spring, primary seal lip and dust excluder lips, axial and the bottom end face direction of outer oil seal is provided with dust excluder lips, inner oil seal comprises the inner oil seal skeleton, primary seal lip, the lip of dust excluder lips all closely contacts with the inner oil seal skeleton, it is characterized in that: interconnect by support frame between outer oil seal and the inner oil seal, the internal surface of outer oil seal skeleton is provided with rubber, rubber on the outer side surface of support frame and the outer oil seal skeleton is interference fit, the inboard end of corresponding support frame is provided with the support frame crimp, the inner oil seal bottom end face is provided with groove, the support frame crimp stretches in the groove, and the inner oil seal bottom end face is provided with end face location sealing lip.
2. labyrinth oil seal according to claim 1 is characterized in that: axially be provided with a dust excluder lips at least along outer oil seal.
3. labyrinth oil seal according to claim 1 and 2 is characterized in that: be marked with lubricant grease in the chamber between each road dust excluder lips of described outer oil seal.
4. labyrinth oil seal according to claim 1 is characterized in that: described support frame crimp and support frame are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202675761U CN201763959U (en) | 2010-07-22 | 2010-07-22 | Labyrinth oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202675761U CN201763959U (en) | 2010-07-22 | 2010-07-22 | Labyrinth oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763959U true CN201763959U (en) | 2011-03-16 |
Family
ID=43716564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202675761U Expired - Fee Related CN201763959U (en) | 2010-07-22 | 2010-07-22 | Labyrinth oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763959U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119652A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of labyrinth |
| CN108150653A (en) * | 2017-12-25 | 2018-06-12 | 陈旭明 | A kind of five lip combination seals |
| CN109237032A (en) * | 2018-11-08 | 2019-01-18 | 昆山米卡斯希尔橡塑工业有限公司 | A kind of more lip fixed point sealed oil sealings of support combinations |
-
2010
- 2010-07-22 CN CN2010202675761U patent/CN201763959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119652A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of labyrinth |
| CN108150653A (en) * | 2017-12-25 | 2018-06-12 | 陈旭明 | A kind of five lip combination seals |
| CN109237032A (en) * | 2018-11-08 | 2019-01-18 | 昆山米卡斯希尔橡塑工业有限公司 | A kind of more lip fixed point sealed oil sealings of support combinations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130722 |