CN201661685U - Framework lip-shaped seal ring for fracture-resistant rotary shaft - Google Patents
Framework lip-shaped seal ring for fracture-resistant rotary shaft Download PDFInfo
- Publication number
- CN201661685U CN201661685U CN2010201712405U CN201020171240U CN201661685U CN 201661685 U CN201661685 U CN 201661685U CN 2010201712405 U CN2010201712405 U CN 2010201712405U CN 201020171240 U CN201020171240 U CN 201020171240U CN 201661685 U CN201661685 U CN 201661685U
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- sizing material
- lip
- adhesive
- fracture
- inner ring
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Abstract
A framework lip-shaped seal ring for a fracture-resistant rotary shaft comprises an adhesive outer ring, a metal framework, a compression spring, an adhesive connecting shoulder and an adhesive inner ring. The section of the metal framework is inverted 'L'-shaped, the metal framework is inlaid in the adhesive outer ring and the adhesive connecting shoulder, an auxiliary lip sealing tape is arranged at the upper end of the adhesive inner ring, a main lip sealing tape is arranged at the lower end of the adhesive inner ring, the compression spring is mounted on the main lip sealing tape, a fracture-resistant groove is arranged at a lower lip edge of the auxiliary lip sealing tape, and a reinforcing rib is arranged at a lower lip edge of the main lip sealing tape. The arrangement of the fracture-resistant groove and the reinforcing rib changes a flowing mode of adhesive when the main lip sealing tape and the auxiliary lip sealing tape are formed, and originally one-way flowing is changed into multidirectional flowing, so that a framework oil seal for the rotary shaft made of high-hardness adhesive has the advantages of excellent sealing performance, fine abrasion resistance and fracture resistance, and prolonged service life of products.
Description
[technical field]
The utility model relates to a kind of Wellendichtring, relates in particular to the framework lip-shaped sealing ring that is used for rotation axis seal.
[background technique]
In recent years, the traffic tool are all developing to high speed, big load direction, and mechanical transmission then develops to the hydraulic transmission direction, and these all propose higher requirement to the sealability of rubber seal.In order to adapt to the situation of mechanical industrial boom, a lot of work have been done in the key property research of people's convection cell sealing, to the O shape in the rubber seal enclose, the sealing mechanism and the structural design of Y shape leather cup and rotary oil seal etc. all obtained bigger progress.For example the rubber oil sea of axle usefulness is exactly that the parts that will need in the transmission part to lubricate are isolated with the parts of exerting oneself, and does not allow oil seepage.For the rotating shaft outside framework oil seal of high speed rotating, excellent sealability not only will be arranged, also good abrasion resistance must be arranged, to satisfy specific requirement in working life.Existing axle with backbone sealing ring as shown in Figure 1, it is made up of sizing material outer ring 1, metal frame 2, pressuring spring 3, sizing material connection shoulder 4, sizing material inner ring 5, the sectional shape of metal frame 2 is anti-" 7 " shape, metal frame 2 is embedded in sizing material outer ring 1 and is connected with sizing material in the shoulder 4, connect sizing material inner ring 5, be provided with secondary lip seal band 51, secondary lip distortion cavity volume 52 in the upper end of sizing material inner ring 5, be provided with main lip seal band 53 and main lip distortion cavity volume 54 in the lower end of sizing material inner ring 5, pressuring spring 3 is installed on the main lip seal band 53.The sealability of the axle oil envelope of this structure can satisfy usage requirement, but its wear-resisting property and working life are difficult to meet the demands.In order to overcome above-mentioned defective, people adopt the method that improves outside framework oil seal hardness to increase the modulus of product, thereby improve the wear-resisting property and the working life of outside framework oil seal sizing material, this improvement project in actual use, played certain effect, it has guaranteed that outside framework oil seal all has dynamic and static preferably sealability and higher wear-resisting property under different pressure.Usually all more than (Shao Er A) 70 degree, because the complex structure of the used outside framework oil seal of high speed rotating shaft, the thickness of local rubber body has only 0.6mm to the hardness of the used rubber of this class oil sealing, even thinner.In Fig. 1, when if the fracture defective takes place in the II place, cause secondary lip seal band 51 to seal, defectives such as fracture take place when the I place, can cause the assembling type spring to come off, the tension force of main lip seal band 53 is not enough, and take place fluid-encapsulatedly to ooze, defective such as leakage, in actual use, the inner ring of outside framework oil seal contacts with rotating shaft, the secondary lip seal band of outside framework oil seal circle and be easy to take place defectives such as fracture by the main lip seal band place of spring compressing makes the running shaft that is pressed into by the high hardness sizing material with can not get assurance in working life of oil sealing.
[model utility content]
In order to overcome above-mentioned defective, the purpose of this utility model provides a kind of framework lip-shaped sealing ring for anti-breakage rotating shaft.
The technological scheme that the utility model is taked is as follows:
Described framework lip-shaped sealing ring for anti-breakage rotating shaft, by the sizing material outer ring, metal frame, pressuring spring, sizing material connects shoulder and the sizing material inner ring is formed, the sectional shape of metal frame is anti-" 7 " shape, metal frame is embedded in the sizing material outer ring and is connected with sizing material in the shoulder, connect the sizing material inner ring, be provided with secondary lip seal band and secondary lip distortion cavity volume in the upper end of sizing material inner ring, be provided with main lip seal band and main lip distortion cavity volume in the lower end of sizing material inner ring, pressuring spring is arranged on the main lip seal band, it is characterized in that: on the lower lip of secondary lip seal band, be provided with anti-fault trough, on the lower lip of main lip seal band, be provided with stiffening rib.
Owing on the lower lip of secondary lip seal band, set up anti-fault trough, on the lower lip of main lip seal band, set up stiffening rib, being provided with of anti-fault trough changed the secondary lip seal band moulding sizing material flow direction, become multidirectional flowing by original one-way flow, thereby improved the crosslink density of product, can prevent secondary lip seal band fracture; Equally, sizing material flowed to when the setting of stiffening rib had not only changed main lip seal band moulding, became multidirectional flowing by original one-way flow, improved the crosslink density of product, and had strengthened the intensity of main lip seal band, can effectively prevent the fracture of main lip seal band.Like this, just make and excellent sealability is not only arranged the high-speed rotating shaft outside framework oil seal of making by the high hardness sizing material, but also have good abrasion resistance, strengthened the break resistance of main lip seal band and secondary lip seal band, thus the working life of having improved product.
[description of drawings]
Fig. 1 is the structural representation of existing rotary-type axle oil envelope;
Fig. 2 is a structural representation of the present utility model;
Among the figure, 1-sizing material outer ring; The 2-metal frame; The 3-pressuring spring; The 4-sizing material connects shoulder; 5-sizing material inner ring; The secondary lip seal band of 51-; The secondary lip distortion of 52-cavity volume; 53-master's lip seal band; 54-master's lip distortion cavity volume; The lower lip of the secondary lip seal band of 6-; 61-prevents fault trough; The lower lip of 7-master's lip seal band; The 71-stiffening rib.
[embodiment]
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:
Described framework lip-shaped sealing ring for anti-breakage rotating shaft, as shown in Figure 2, it is by sizing material outer ring 1, metal frame 2, pressuring spring 3, sizing material connects shoulder 4 and sizing material inner ring 5 is formed, the sectional shape of metal frame 2 is anti-" 7 " shape, metal frame 2 is embedded in sizing material outer ring 1 and is connected with sizing material in the shoulder 4, connect sizing material inner ring 5, be provided with secondary lip seal band 51 and secondary lip distortion cavity volume 52 in the upper end of sizing material inner ring 5, be provided with main lip seal band 53 and main lip distortion cavity volume 54 in the lower end of sizing material inner ring 5, pressuring spring 3 is installed on the main lip seal band 53, on the lower lip 6 of secondary lip seal band, be provided with anti-fault trough 61, on the lower lip 7 of main lip seal band, be provided with stiffening rib 71.
Claims (1)
1. framework lip-shaped sealing ring for anti-breakage rotating shaft, it is by sizing material outer ring (1), metal frame (2), pressuring spring (3), sizing material connects shoulder (4) and sizing material inner ring (5) is formed, the sectional shape of metal frame (2) is anti-" 7 " shape, metal frame (2) is embedded in sizing material outer ring (1) and is connected with sizing material in the shoulder (4), connect sizing material inner ring (5), be provided with secondary lip seal band (51) in the upper end of sizing material inner ring (5), secondary lip distortion cavity volume (52), be provided with main lip seal band (53) and main lip distortion cavity volume (54) in the lower end of sizing material inner ring (5), pressuring spring (3) is installed on the main lip seal band (53), it is characterized in that: on the lower lip (6) of secondary lip seal band, be provided with anti-fault trough (61), on the lower lip (7) of main lip seal band, be provided with stiffening rib (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201712405U CN201661685U (en) | 2010-04-27 | 2010-04-27 | Framework lip-shaped seal ring for fracture-resistant rotary shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201712405U CN201661685U (en) | 2010-04-27 | 2010-04-27 | Framework lip-shaped seal ring for fracture-resistant rotary shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661685U true CN201661685U (en) | 2010-12-01 |
Family
ID=43232100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201712405U Expired - Fee Related CN201661685U (en) | 2010-04-27 | 2010-04-27 | Framework lip-shaped seal ring for fracture-resistant rotary shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661685U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806361A (en) * | 2010-04-27 | 2010-08-18 | 常州朗博汽车零部件有限公司 | Framework lip-shaped sealing ring for anti-breakage rotating shaft |
| CN102278474A (en) * | 2011-06-12 | 2011-12-14 | 鞍山重型矿山机器股份有限公司 | Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring |
| CN102734469A (en) * | 2011-04-01 | 2012-10-17 | 江门市鑫辉密封科技有限公司 | Rotation assembling oil seal for being used under middle and high pressure |
-
2010
- 2010-04-27 CN CN2010201712405U patent/CN201661685U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806361A (en) * | 2010-04-27 | 2010-08-18 | 常州朗博汽车零部件有限公司 | Framework lip-shaped sealing ring for anti-breakage rotating shaft |
| CN102734469A (en) * | 2011-04-01 | 2012-10-17 | 江门市鑫辉密封科技有限公司 | Rotation assembling oil seal for being used under middle and high pressure |
| CN102278474A (en) * | 2011-06-12 | 2011-12-14 | 鞍山重型矿山机器股份有限公司 | Contact type dynamic sealing method and dynamic sealing device of dishing sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |