CN222864121U - PTFE double-main-lip type oil seal convenient for blocking impurities - Google Patents
PTFE double-main-lip type oil seal convenient for blocking impurities Download PDFInfo
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- CN222864121U CN222864121U CN202421047368.9U CN202421047368U CN222864121U CN 222864121 U CN222864121 U CN 222864121U CN 202421047368 U CN202421047368 U CN 202421047368U CN 222864121 U CN222864121 U CN 222864121U
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Abstract
本实用新型公开了一种便于阻挡杂质的PTFE双主唇型油封，具体涉及油封技术领域，本实用新型中采用双主唇设计，一侧使用PTFE唇部密封气体，另一侧使用橡胶唇部阻挡杂质，且可以有效隔离两种密封液体，保护主唇口，并延长油封的使用寿命，其中油封内部设置有固定组件，包括装配窗口、第一弹簧和第二弹簧，提供油封唇部一定束缚力，保持唇部紧密贴合，延长油封寿命，油封内部还设置有加强组件，包括第一铁件和第二铁件，增强油封的整体骨架刚性，防止油封变形，保证其正常工作，油封外环处设置有橡胶外径，确保外部密封性，外部螺纹便于拿取，油封设计能够有效隔离不同介质，阻挡杂质，提供优异的密封性能，延长使用寿命，减少机械使用成本。
The utility model discloses a PTFE double main lip type oil seal which is convenient for blocking impurities, and specifically relates to the technical field of oil seals. The utility model adopts a double main lip design, one side uses a PTFE lip to seal gas, and the other side uses a rubber lip to block impurities, and can effectively isolate two sealing liquids, protect the main lip, and extend the service life of the oil seal, wherein a fixing component is arranged inside the oil seal, including an assembly window, a first spring and a second spring, which provide a certain binding force to the oil seal lip, keep the lip tightly fitted, and extend the service life of the oil seal, wherein a reinforcing component is also arranged inside the oil seal, including a first iron piece and a second iron piece, which enhances the overall skeleton rigidity of the oil seal, prevents the oil seal from deforming, and ensures its normal operation, a rubber outer diameter is arranged at the outer ring of the oil seal, ensures external sealing, and the external thread is easy to take, and the oil seal design can effectively isolate different media, block impurities, provide excellent sealing performance, extend the service life, and reduce the cost of mechanical use.
Description
Technical Field
The utility model relates to the technical field of oil seals, in particular to a PTFE double-main-lip type oil seal convenient for blocking impurities.
Background
Lip seals are a common type of sealing device that is commonly used to prevent leakage of liquid or grease in mechanical devices or entry of foreign matter. It is made of soft rubber or elastic material and has lip structure to contact with the shaft or sleeve to form sealing. Lip-shaped oil seals are commonly used in the fields of automobiles, industrial machinery, hydraulic systems and the like, and the working principle is that a lip part is contacted with a shaft or a sleeve to form a sealing gap so as to prevent leakage of liquid or lubricating oil. To enhance sealing performance. They are typically mounted around bearings or other rotating components to protect the interior of the machine from the external environment and ensure proper operation and lubrication.
Under the prior art, because the single-lip structure is relatively simple, single-lip oil seals are mostly used in the market, and because only one lip part of the single-lip oil seal is in contact with a shaft or a sleeve, the sealing effect is possibly inferior to that of other structural sealing elements, and the sealing effect is possibly unstable due to the influence of external environment, such as temperature change, oil property change and the like;
The subsequent multi-lip oil seal is designed, and the oil seal is made of soft rubber or elastic material, so that the wear resistance and the durability of the oil seal are possibly low, the sealing element is easy to damage or leak due to friction, the sealing element is easy to leak under high-speed rotation or complex working conditions, and the two oil seals have some limitations in some aspects.
Disclosure of utility model
The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the utility model is as follows:
The utility model provides a two main lip type oil seals of PTFE convenient to block impurity, includes the oil blanket body, the pilot hole that is used for contacting mechanical device has been seted up at oil blanket body middle part, the pilot hole runs through the oil blanket body, pilot hole inner wall fixedly connected with is a plurality of rubber bulge loops that are used for preventing liquid leakage, one side fixedly connected with is used for sealing gas's lip PTFE in the pilot hole, one side fixedly connected with that the oil blanket body kept away from lip PTFE is used for blockking the lip rubber of impurity, lip rubber and lip PTFE and oil blanket body axis coincidence, oil blanket body both sides and inside all are provided with the fixed subassembly that is used for driving oneself and mechanical part closely laminating, the inside reinforcing assembly that is used for reinforcing whole skeleton rigidity that is provided with of oil blanket body.
Preferably, the fixing component comprises an assembly window, the assembly window is arranged on one side, close to the lip portion PTFE, of the oil seal body, and the assembly window coincides with the axis of the oil seal body.
Preferably, the first spring is arranged in the assembly window and sleeved at the bottom of the inner cavity of the assembly window, and the first spring surrounds the oil seal body for a circle.
Preferably, a fixed cavity is formed in one side, far away from the first spring, of the inner cavity of the oil seal body, and the fixed cavity surrounds the oil seal body for a circle.
Preferably, the fixed chamber is internally provided with a second spring, the second spring is sleeved at the bottom of the inner cavity of the fixed chamber, the second spring surrounds the oil seal body for a circle, and the axes of the second spring, the first spring and the oil seal body are coincident.
Preferably, the reinforcing component comprises a first iron piece, the first iron piece is fixed inside the oil seal body, the first iron piece is arranged on one side, away from the PTFE of the lip, of the first spring, one end, away from the first spring, of the first iron piece penetrates through the oil seal body to extend to one side of the fixed cavity, and the first iron piece surrounds the oil seal body in a circle.
Preferably, the reinforcing component further comprises a second iron piece, the second iron piece is fixed inside the oil seal body, the second iron piece is arranged on one side, close to the axis of the oil seal body, of the first iron piece, the second iron piece is close to the second spring, the second iron piece surrounds the oil seal body for a circle, and the first iron piece and the second iron piece are made of carbon steel.
Preferably, the outer ring of the oil seal body is provided with a rubber outer diameter for ensuring the external tightness of the oil seal body, the rubber outer diameter is fixedly connected with the oil seal body and the axis is coincident, and the outer annular wall of the rubber outer diameter is provided with a plurality of evenly arranged thread grooves.
By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:
According to the utility model, a double main lip design is adopted, PTFE lip seal gas is used on one side, rubber lips are used on the other side to block impurities, two sealing liquids can be effectively isolated, the main lips are protected, and the service life of an oil seal is prolonged, wherein a fixing component is arranged in the oil seal and comprises an assembly window, a first spring and a second spring, a certain binding force of the lips of the oil seal is provided, the lips are kept tightly attached, the service life of the oil seal is prolonged, a reinforcing component is also arranged in the oil seal and comprises a first iron piece and a second iron piece, the rigidity of the integral framework of the oil seal is enhanced, the deformation of the oil seal is prevented, the normal work of the oil seal is ensured, the rubber outer diameter is ensured, the external tightness is ensured, different mediums can be effectively isolated by the oil seal design, impurities are blocked, excellent sealing performance is provided, the service life is prolonged, and the oil seal is a high-efficiency reliable sealing solution.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is an assembly schematic diagram of the internal structure of the oil seal body according to the present utility model.
Fig. 3 is a cross-sectional view of the internal structure of the present utility model.
FIG. 4 is the view of FIG. 3 of the present utility model a partial structural cross-sectional view.
In the figure, 1, an oil seal body, 101, an assembly hole, 102, a rubber convex ring, 103, lip PTFE, 104, lip rubber, 2, a fixing component, 201, an assembly window, 202, a first spring, 203, a fixing chamber, 204, a second spring, 3, a reinforcing component, 301, a first iron piece, 302, a second iron piece, 4, a rubber outer diameter, 401 and a thread groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a PTFE double-main-lip oil seal convenient for blocking impurities, which is shown in fig. 1-4, and comprises an oil seal body 1, wherein an assembly hole 101 for contacting a mechanical device is formed in the middle of the oil seal body 1, the assembly hole 101 penetrates through the oil seal body 1, a plurality of rubber convex rings 102 for preventing liquid leakage are fixedly connected to the inner wall of the assembly hole 101, the double-main-lip design is adopted for isolating two sealing liquids, and the combined oil seal can effectively block impurities in a sealing medium, so that the effect of protecting the main lip is achieved, and the service life of the oil seal is prolonged.
The lip part PTFE103 used for sealing gas is fixedly connected to one side in the assembly hole 101, the lip part rubber 104 used for blocking impurities is fixedly connected to one side, far away from the lip part PTFE103, of the oil seal body 1, the axis of the lip part rubber 104 and the axis of the lip part PTFE103 are overlapped with that of the oil seal body 1, main lips are designed on two sides of the oil seal body 1, the lip part PTFE103 seals gas and dynamic sealing surfaces, the dynamic sealing surfaces have excellent chemical resistance, high and low temperature resistance, self-lubricating property and friction resistance, and the dynamic sealing surfaces of the lip part rubber 104 have elastic characteristics and can effectively block impurities, so that the effect of protecting the main lips is achieved, and the service life of the oil seal is prolonged.
Further, both sides and the inside of the oil seal body 1 are provided with fixing components 2 for driving the fixing components to be tightly attached to mechanical parts, wherein the fixing components 2 comprise an assembling window 201, the assembling window 201 is arranged on one side, close to the lip portion PTFE103, of the oil seal body 1, the axis of the assembling window 201 is coincident with that of the oil seal body 1, a first spring 202 is arranged in the assembling window 201, the first spring 202 is sleeved at the bottom of an inner cavity of the assembling window 201, the first spring 202 surrounds the oil seal body 1 for a circle, a fixing cavity 203 is arranged on one side, far away from the first spring 202, of the inner cavity of the oil seal body 1, the fixing cavity 203 surrounds the oil seal body 1 for a circle, a second spring 204 is arranged in the fixing cavity 203, the second spring 204 is sleeved at the bottom of the inner cavity of the fixing cavity 203, the second spring 204 surrounds the oil seal body 1 for a circle, the axes of the second spring 204, the first spring 202 and the oil seal body 1 are coincident with each other, and the springs are made of carbon steel, and provide certain binding force for the lip portion of the oil seal and prolong the service life of the oil seal;
Further, the reinforcing component 3 for enhancing the rigidity of the whole framework is arranged inside the oil seal body 1, the reinforcing component 3 comprises a first iron piece 301, the first iron piece 301 is fixed inside the oil seal body 1, the first iron piece 301 is arranged on one side, away from the lip portion PTFE103, of the first spring 202, one end, away from the first spring 202, of the first iron piece 301 penetrates through the oil seal body 1 to extend to one side of the fixing chamber 203, the first iron piece 301 surrounds the oil seal body 1, the reinforcing component 3 further comprises a second iron piece 302, the second iron piece 302 is fixed inside the oil seal body 1, the second iron piece 302 is arranged on one side, close to the axis of the oil seal body 1, of the first iron piece 301, close to the second spring 204, of the second iron piece 302 surrounds the oil seal body 1, the first iron piece 301 and the second iron piece 302 are made of carbon steel, and the basic framework increases rigidity to enable the oil seal not to be deformed easily.
The outer ring of the oil seal body 1 is provided with a rubber outer diameter 4 for ensuring the external tightness of the oil seal body, the rubber outer diameter 4 is fixedly connected with the oil seal body 1 and the axes of the rubber outer diameter 4 are coincident, the outer annular wall of the rubber outer diameter 4 is provided with a plurality of evenly arranged thread grooves 401, the rubber outer diameter 4 is a static sealing surface, and the tightness of the outer diameter is ensured.
The working principle is that the oil seal is designed by adopting a double main lip, one side is sealed by PTFE lip sealing gas, the other side is blocked by rubber lip, two sealing liquids can be effectively isolated, the main lip is protected, and the service life of the oil seal is prolonged.
The fixing component 2 is arranged in the oil seal, and comprises an assembly window 201, a first spring 202 and a second spring 204, and a certain binding force is provided for the lip part of the oil seal, so that the lip part is kept tightly attached, and the service life of the oil seal is prolonged.
The reinforcing component 3 is further arranged in the oil seal, and comprises a first iron piece 301 and a second iron piece 302, so that the rigidity of the whole framework of the oil seal is enhanced, the deformation of the oil seal is prevented, and the normal operation of the oil seal is ensured.
External tightness, namely, the rubber outer diameter 4 is arranged at the outer ring of the oil seal, so that the external tightness is ensured, and the sealing effect is improved.
The oil seal design can effectively isolate different media, block impurities, provide excellent sealing performance and prolong the service life, and is an efficient and reliable sealing solution.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. PTFE dual main lip type oil blanket convenient to block impurity, a serial communication port, including oil blanket body (1), be used for contacting mechanical device's pilot hole (101) has been seted up at oil blanket body (1) middle part, pilot hole (101) run through oil blanket body (1), pilot hole (101) inner wall fixedly connected with is a plurality of rubber bulge loop (102) that are used for preventing liquid leakage, one side fixedly connected with is used for sealing gas's lip PTFE (103) in pilot hole (101), one side fixedly connected with that oil blanket body (1) kept away from lip PTFE (103) is used for blockking lip rubber (104) of impurity, lip rubber (104) and lip PTFE (103) and oil blanket body (1) axis coincidence, oil blanket body (1) both sides and inside all are provided with fixed subassembly (2) that are used for driving oneself and mechanical part closely laminating, oil blanket body (1) inside is provided with reinforcing subassembly (3) that are used for reinforcing whole skeleton rigidity.
2. The PTFE double-main-lip type oil seal capable of conveniently blocking impurities according to claim 1, wherein the fixing component (2) comprises an assembling window (201), the assembling window (201) is formed on one side, close to the lip PTFE (103), of the oil seal body (1), and the axis of the assembling window (201) coincides with that of the oil seal body (1).
3. The PTFE double-main-lip type oil seal convenient for blocking impurities according to claim 2, wherein the first spring (202) is arranged in the assembly window (201), the first spring (202) is sleeved at the bottom of the inner cavity of the assembly window (201), and the first spring (202) surrounds the oil seal body (1) for a circle.
4. A PTFE double main lip type oil seal convenient for blocking impurities according to claim 3, wherein a fixing chamber (203) is provided on a side of the inner cavity of the oil seal body (1) far from the first spring (202), and the fixing chamber (203) surrounds the oil seal body (1) for a circle.
5. The PTFE double-main-lip type oil seal convenient for blocking impurities according to claim 4, wherein a second spring (204) is arranged in the fixing chamber (203), the second spring (204) is sleeved at the bottom of the inner cavity of the fixing chamber (203), the second spring (204) surrounds the oil seal body (1) for a circle, and the axes of the second spring (204), the first spring (202) and the oil seal body (1) are coincident.
6. The PTFE double main lip type oil seal convenient for blocking impurities according to claim 1, wherein the reinforcing component (3) comprises a first iron member (301), the first iron member (301) is fixed inside the oil seal body (1), the first iron member (301) is arranged on one side, away from the lip PTFE (103), of the first spring (202), one end, away from the first spring (202), of the first iron member (301) penetrates through the oil seal body (1) to one side of the fixing chamber (203), and the first iron member (301) surrounds the oil seal body (1) in a circle.
7. The PTFE double-main-lip type oil seal with the convenience for blocking impurities according to claim 1, wherein the reinforcing component (3) further comprises a second iron piece (302), the second iron piece (302) is fixed inside the oil seal body (1), the second iron piece (302) is arranged on one side, close to the axis of the oil seal body (1), of the first iron piece (301), the second iron piece (302) is close to the second spring (204), the second iron piece (302) surrounds the oil seal body (1) for one circle, and the first iron piece (301) and the second iron piece (302) are made of carbon steel.
8. The PTFE double-main-lip type oil seal convenient for blocking impurities according to claim 7, wherein a rubber outer diameter (4) for ensuring the external tightness of the oil seal body (1) is arranged at the outer ring of the oil seal body (1), the rubber outer diameter (4) is fixedly connected with the oil seal body (1) and coincides with the axis, and a plurality of uniformly arranged thread grooves (401) are formed in the outer annular wall of the rubber outer diameter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421047368.9U CN222864121U (en) | 2024-05-14 | 2024-05-14 | PTFE double-main-lip type oil seal convenient for blocking impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421047368.9U CN222864121U (en) | 2024-05-14 | 2024-05-14 | PTFE double-main-lip type oil seal convenient for blocking impurities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222864121U true CN222864121U (en) | 2025-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421047368.9U Active CN222864121U (en) | 2024-05-14 | 2024-05-14 | PTFE double-main-lip type oil seal convenient for blocking impurities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222864121U (en) |
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2024
- 2024-05-14 CN CN202421047368.9U patent/CN222864121U/en active Active
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