CN211259645U - Large-shaft-diameter multi-lip oil seal for farming mechanical device - Google Patents
Large-shaft-diameter multi-lip oil seal for farming mechanical device Download PDFInfo
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- CN211259645U CN211259645U CN201922026191.XU CN201922026191U CN211259645U CN 211259645 U CN211259645 U CN 211259645U CN 201922026191 U CN201922026191 U CN 201922026191U CN 211259645 U CN211259645 U CN 211259645U
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Abstract
The utility model discloses a large-shaft-diameter multi-lip oil seal for an agricultural mechanical device, which comprises a framework and a sealing body, wherein the framework is L-shaped, and the sealing body completely covers the outer corner edge of the framework and is made of rubber; the inner corner edge of the framework is coated with thinner encapsulation; the sealing body is provided with a main sealing lip for sealing and an auxiliary sealing lip for auxiliary sealing; the lip of the main sealing lip is designed to be short so as to enhance the bending resistance of the lip; the auxiliary sealing lip is arranged on the lower side of the main sealing lip; the utility model has the advantages that the hardness of the oil seal colloid is enhanced, and the length of the lip is shortened, thereby improving the bending resistance of the lip, avoiding the softening and aging of the colloid for a long time, and prolonging the service life of the oil seal; the inner angle edge of the framework of the oil seal is coated with a layer of thin rubber coating, so that the joint of the oil seal and the farming machine is tighter, the oil seal is prevented from sliding out of the equipment when in use, and the sealing effect of the oil seal is also enhanced.
Description
Technical Field
The utility model relates to an oil blanket product technical field specifically is a big footpath lip oil blanket that declines for farming machinery device.
Background
At present, some farming mechanical equipment can directly stretch into muddy water soil when in operation and use, the used environment is extremely severe, muddy water is soaked, weeds are embedded, small stones exist in original various substances in soil, sludge and various impurities are extremely easy to be doped into an external oil seal element, the colloid material of the traditional oil seal is soft, the lip mouth is designed to be long, the bending resistance is poor, the deformation and the aging are easy to occur after the oil seal is used for a long time, the sealing effect is lost due to rusting and cracking of the oil seal, after the sealing protection effect of the oil seal is lost, lubricating grease can be embedded into the soil, the function of the lubricating grease is lost due to moisture, the telescopic pull rod of the farming mechanical equipment is rusted and is blocked to lose efficacy, the diameter of the traditional oil seal is 15, the traditional oil seal is not suitable for all farming mechanical equipment, and the calibers of some farming mechanical equipment are larger.
Therefore, the current farming machinery equipment needs a novel multi-lip sealed oil seal with a larger caliber, the problems of non-durability, short use time and small caliber existing in the existing oil seal product technology are solved, and therefore a large-caliber multi-lip oil seal with a diameter of 18 is designed, and the defect of the market variety of oil seal products is overcome.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and relates to a large-diameter multi-lip oil seal for an agricultural mechanical device.
The utility model has the scheme that the large-shaft-diameter multi-lip oil seal for the farming mechanical device comprises a framework and a sealing body, wherein the framework is L-shaped, and the sealing body completely covers the outer corner edge of the framework and is made of rubber; the inner corner edge of the framework is coated with a thin encapsulation; the sealing body is provided with a main sealing lip for sealing and an auxiliary sealing lip for auxiliary sealing; the sealing body completely covers the outer corner edge of the framework and is made of rubber; the lip of the main sealing lip is designed to be short so as to enhance the bending resistance of the lip; the auxiliary sealing lip is arranged on the lower side of the main sealing lip.
Furthermore, the cross section of the sealing body coated at the tail end of the short side of the framework is wider, so that the sealing surface is enlarged, and the plane sealing effect with the mechanical equipment cavity is enhanced.
Furthermore, the inner corner of the framework is coated with thinner encapsulation for enhancing the tightness of the cavity of the mechanical equipment.
Furthermore, the sealing body is made of rubber with the rubber hardness of 85 degrees, so that the rubber softening is avoided for a long time, and meanwhile, the deformation degree of the rubber material is improved.
Furthermore, the auxiliary sealing lip is designed to be inclined at 45 degrees, so that friction between the auxiliary sealing lip and the rotating shaft is reduced, and the service life of the oil seal is prolonged.
Further, the backbone is rigid to support and maintain the profile of the oil seal.
The beneficial effects are that: 1. the utility model discloses the hardness of well oil blanket colloid has obtained the enhancement to the length of lip has shortened, has promoted the bending resistance of lip from this, has avoided the colloid of having grown for a long time to soften ageing, makes the life of oil blanket obtain the promotion.
2. The inner angle edge of the framework of the oil seal is coated with a layer of thin rubber coating, so that the joint of the oil seal and the farming machine is tighter, the oil seal is prevented from sliding out of the equipment when in use, and the sealing effect of the oil seal is also enhanced.
3. The cross-sectional dimension of the seal body at the tail end of the short side direction of the framework is lengthened, so that the seal body of the oil seal and the seal surface of the farming mechanical equipment are enlarged, and the sealing effect of the oil seal is enhanced.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
in the figure, 1, a skeleton; 2. a seal body; 3. a primary seal lip; 301. a lip; 4. a secondary sealing lip; 5. and (4) encapsulating.
Detailed Description
The utility model will be described in detail with reference to the accompanying drawings, as shown in fig. 1, a large-diameter multi-lip oil seal for agricultural machinery comprises a framework 1 and a sealing body 2, wherein the framework 1 is in an L shape, and the sealing body 2 completely covers the outer corner edge of the framework 1 and is made of rubber; the inner corner edge of the framework 1 is coated with a thin encapsulation 5; the sealing body 2 is provided with a main sealing lip 3 for sealing and an auxiliary sealing lip 4 for auxiliary sealing; the lip mouth 301 of the main sealing lip 3 is designed to be short, so that the bending resistance of the lip mouth 301 is enhanced, the softening, aging and bending of the colloid are avoided for a long time, and the service life of the oil seal is prolonged; the auxiliary sealing lip 4 is arranged at the lower side of the main sealing lip 3.
The section size of the sealing body 2 coated at the tail end of the short side of the framework 1 is wider, the sealing surface of the oil seal and the farming mechanical equipment is enlarged through the design, and the plane sealing effect of the cavity of the mechanical equipment is enhanced.
The interior angle limit cladding of skeleton 1 is thinner be used for strengthening with the tight rubber coating 5 of mechanical equipment cavity, prevents the oil blanket from following the interior roll-off of cavity, has also strengthened the sealed effect of oil blanket simultaneously.
The sealing body 2 is made of rubber with the rubber hardness of 85 degrees, so that the rubber softening is avoided for a long time, and meanwhile, the deformation degree of the rubber material is improved.
The auxiliary sealing lip 4 is designed to be inclined at 45 degrees and used for reducing friction with a rotating shaft and prolonging the service life of the sealing lip; the backbone 1 is rigid to support and maintain the profile of the oil seal.
The working principle is as follows: during the use, inlay the oil blanket in the position that agro-farming machinery will use, the rotation axis alternates in the middle of the oil blanket, main seal lip 3 and vice seal lip 4 on the seal 2 are hugged closely with the rotation axis, form airtight space with the rotation axis, prevent that the oil in the inner chamber from leaking out, simultaneously also prevent that the impurity of outside from getting into in the cavity, lip 301 of main seal lip 3 is the short-cut design, the bending resistance of main seal lip 3 has been strengthened, the practicality is stronger, rubber coating 5 on the oil blanket enables the oil blanket tightly to inlay on agro-farming mechanical equipment, prevent the oil blanket from sliding out on the equipment, its leakproofness has also been strengthened, the cross-sectional dimension broad of the seal 2 of skeleton 1 minor face that side, the sealed face has been increaseed, be used for strengthening the plane sealing effect.
Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.
Claims (6)
1. A big-shaft-diameter multi-lip oil seal for an agricultural mechanical device comprises a framework and a sealing body, and is characterized in that the framework is L-shaped, the sealing body completely covers the outer corner edge of the framework and is made of rubber; the inner corner edge of the framework is coated with a thin encapsulation; the sealing body is provided with a main sealing lip for sealing and an auxiliary sealing lip for auxiliary sealing; the lip of the main sealing lip adopts a short-mouth design to enhance the bending resistance of the lip; the auxiliary sealing lip is arranged on the lower side of the main sealing lip.
2. The large-shaft-diameter multi-lip oil seal for the agricultural mechanical device, according to claim 1, is characterized in that the cross section of the seal body covered by the tail end of the short side of the framework is wider, and the seal surface is enlarged to enhance the plane sealing effect with the cavity of the mechanical equipment.
3. The large-diameter multi-lip oil seal for the agricultural mechanical device, according to claim 1, wherein the framework is wrapped by a thin inner corner edge and is wrapped by a rubber coating for enhancing tightness with a cavity of mechanical equipment.
4. The large-shaft-diameter multi-lip oil seal for the agricultural mechanical device, according to claim 1, is characterized in that the sealing body is made of rubber with the rubber hardness of 85 degrees, so that the softening of rubber is avoided for a long time, and the deformation degree of the rubber is improved.
5. The large-shaft-diameter multi-lip oil seal for the agricultural mechanical device, according to claim 1, is characterized in that the secondary sealing lip is designed to be inclined at 45 degrees so as to reduce friction with a rotating shaft and prolong the service life of the oil seal.
6. The large-diameter multi-lip oil seal for agricultural machinery according to claim 1, wherein the frame is rigid to support and maintain the profile of the oil seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922026191.XU CN211259645U (en) | 2019-11-21 | 2019-11-21 | Large-shaft-diameter multi-lip oil seal for farming mechanical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922026191.XU CN211259645U (en) | 2019-11-21 | 2019-11-21 | Large-shaft-diameter multi-lip oil seal for farming mechanical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259645U true CN211259645U (en) | 2020-08-14 |
Family
ID=71958351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922026191.XU Active CN211259645U (en) | 2019-11-21 | 2019-11-21 | Large-shaft-diameter multi-lip oil seal for farming mechanical device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259645U (en) |
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2019
- 2019-11-21 CN CN201922026191.XU patent/CN211259645U/en active Active
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