CN215172231U - Oil seal for truck - Google Patents
Oil seal for truck Download PDFInfo
- Publication number
- CN215172231U CN215172231U CN202021864766.1U CN202021864766U CN215172231U CN 215172231 U CN215172231 U CN 215172231U CN 202021864766 U CN202021864766 U CN 202021864766U CN 215172231 U CN215172231 U CN 215172231U
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- Prior art keywords
- oil seal
- lip
- sleeve
- shaft sleeve
- oil blanket
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Abstract
The utility model discloses an oil blanket for truck, including axle sleeve and outer oil blanket, the axle sleeve is fixed to be set up in outer oil blanket one side, the outer oil blanket is close to the one end fixedly connected with oil blanket gum cover of axle sleeve, the one end fixedly connected with axle sleeve gum cover of outer oil blanket is kept away from to the axle sleeve, oil blanket gum cover upper end is provided with outer bulge loop, the first dustproof lip of one end axle sleeve upside fixedly connected with of oil blanket gum cover close to the axle sleeve, the inboard fixed second dustproof lip that is provided with of the first dustproof lip downside axle sleeve of oil blanket gum cover side, the contact of the inside upper wall of second dustproof lip and axle sleeve, the fixed third dustproof lip that is provided with of oil blanket gum cover lateral wall second dustproof lip downside. The utility model discloses an oil blanket for truck, the device are provided with the multilayer dustproof lip and can prevent effectively that outside large granule and muddy water from getting into the oil blanket inside, improve the working life of oil blanket internals, save cost of maintenance, reduce staff's the amount of labour.
Description
Technical Field
The utility model relates to an oil blanket field especially relates to an oil blanket for truck.
Background
An oil seal is a seal for lubricating oil, and is a mechanical element for sealing grease, and separates a part needing lubrication in a transmission part from a force-applying part, so that the lubricating oil cannot leak.
But the sealing effect of the existing oil seal is not good enough, and the oil seal for the truck is provided aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an oil seal for trucks.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an oil seal for a truck comprises a shaft sleeve and an outer oil seal, wherein the shaft sleeve is fixedly arranged on one side of the outer oil seal, one end, close to the shaft sleeve, of the outer oil seal is fixedly connected with an oil seal rubber sleeve, one end, far away from the outer oil seal, of the shaft sleeve is fixedly connected with a shaft sleeve rubber sleeve, the upper end of the oil seal rubber sleeve is provided with an outer convex ring, the upper side of the shaft sleeve, close to one end of the shaft sleeve, of the oil seal rubber sleeve is fixedly connected with a first dust prevention lip, the inner side of the shaft sleeve is fixedly arranged on the lower side of the first dust prevention lip on the side end of the oil seal rubber sleeve, the second dust prevention lip is in contact with the upper wall inside the shaft sleeve, a third dust prevention lip is fixedly arranged on the lower side of the second dust prevention lip on the side wall of the oil seal rubber sleeve, the third dust prevention lip is in contact with the side wall inside the shaft sleeve, an auxiliary lip is fixedly arranged on the lower end of the oil seal rubber sleeve and is in contact with the lower wall of the lower end of the shaft sleeve, and is fixedly connected with a blade tail, the leaf tail is characterized in that a spring groove is formed in the upper end of the leaf tail, a spring is fixedly arranged in the spring groove, a main lip is fixedly arranged at the lower end of the leaf tail, the lower end of the main lip is in contact with the shaft sleeve, an oil return line is arranged on the upper side of one end, close to the auxiliary lip, of the shaft sleeve, and lubricating grease is filled in a cavity formed by the oil seal rubber sleeve, the third dust prevention lip and the auxiliary lip and the shaft sleeve.
As a further description of the above technical solution:
the shaft sleeve framework is made of high-strength carbon steel, the outer oil seal framework is made of carbon steel, the outer convex ring is made of FKM, and the spring is made of carbon steel.
As a further description of the above technical solution:
and a front chamfer is arranged on one side of the upper end of the outer oil seal, which is far away from the shaft sleeve.
As a further description of the above technical solution:
and engraving teeth are arranged between the first dust lip and the second dust lip of the side wall of the oil seal rubber sleeve and between the second dust lip and the third dust lip.
As a further description of the above technical solution:
an inner convex ring is arranged at the lower end of the shaft sleeve rubber sleeve and is made of HNBR.
As a further description of the above technical solution:
and the shaft sleeve rubber sleeve and the shaft sleeve as well as the oil seal rubber sleeve and the outer oil seal are all vulcanized and bonded at high temperature through an adhesive.
The utility model discloses following beneficial effect has:
compared with the prior art, the device is provided with the multilayer dustproof lip and can effectively prevent outside large particles and muddy water from entering the oil seal, the service life of internal parts of the oil seal is prolonged, the maintenance cost is saved, and the labor capacity of workers is reduced.
Compared with the prior art, the device can prevent the lubricating liquid and the engine oil in the device from leaking, so that the environmental pollution is caused, the service time of the engine oil is prolonged, and the cost is saved.
Drawings
Fig. 1 is a front sectional view of an oil seal for a truck according to the present invention;
fig. 2 is a schematic structural view of an oil return line of an oil seal for a truck according to the present invention;
fig. 3 is an enlarged view of a point a in fig. 1 according to the present invention.
Illustration of the drawings:
1. front chamfering; 2. tooth engraving; 3. an outer convex ring; 4. oil sealing rubber sleeve; 5. a first dust lip; 6. a second dust lip; 7. A third dust prevention lip; 8. lubricating grease; 9. a shaft sleeve; 10. a shaft sleeve rubber sleeve; 11. an inner collar; 12. the minor lip; 13. a spring; 14. a main lip; 15. a spring slot; 16. an outer oil seal; 17. the leaf tail; 18. and (6) returning the oil line.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment: an oil seal for a truck comprises an axle sleeve 9 and an outer oil seal 16, the axle sleeve 9 is fixedly arranged on one side of the outer oil seal 16, one end of the outer oil seal 16 close to the axle sleeve 9 is fixedly connected with an oil seal rubber sleeve 4, one end of the axle sleeve 9 far away from the outer oil seal 16 is fixedly connected with an axle sleeve rubber sleeve 10, the upper end of the oil seal rubber sleeve 4 is provided with an outer convex ring 3, the upper sizing material on the outer convex ring 3 is FKM, the stability of the oil seal under vibration is increased, meanwhile, the sealing performance is satisfied, the upper side of the axle sleeve 9 at one end of the oil seal rubber sleeve 4 close to the axle sleeve 9 is fixedly connected with a first dustproof lip 5 for preventing large particles from entering the oil seal, the inner side of the axle sleeve 9 at the lower side of the first dustproof lip 5 at the side end of the oil seal rubber sleeve 4 is fixedly provided with a second dustproof lip 6, the second dustproof lip 6 is in contact with the upper wall inside of the axle sleeve 9, a third dustproof lip 7 is in contact with the side wall inside of the axle sleeve 9, the oil seal structure has the advantages that muddy water is prevented from entering the inside of an oil seal, the service life of the oil seal is prolonged, the lower end of an oil seal rubber sleeve 4 is fixedly provided with an auxiliary lip 12, the auxiliary lip 12 is in contact with the lower wall inside a shaft sleeve 9, one side of the lower end of the oil seal rubber sleeve 4, which is far away from the shaft sleeve 9, is fixedly connected with a blade tail 17, the upper end of the blade tail 17 is provided with a spring groove 15, a spring 13 is fixedly arranged in the spring groove 15, the spring 13 is made of carbon steel and provides certain radial force to increase the sealing performance, the lower end of the blade tail 17 is fixedly provided with a main lip 14, the lower end of the main lip 14 is in contact with the shaft sleeve 9, oil is sealed and prevented from leaking, the upper side of one end, which is close to the auxiliary lip 12, of the shaft sleeve 9 is provided with an oil return line 18, the oil at the lip is increased in sealing performance and led back to the inside, the framework of the shaft sleeve 9 adopts high-strength carbon steel as a material, the hardness is increased, the vertical grinding process, the smoothness of the contact surface with the main lip 14 is increased, excessive wear is avoided, and the service life is prolonged, the framework of the outer oil seal 16 is made of carbon steel.
The working principle is as follows: when the device is used, after the device is installed, large particles and muddy water are prevented from entering the oil seal through the arrangement of the multiple layers of dust-proof lips, and the leakage of engine oil lubricating liquid in the oil seal is prevented through the arrangement of the main lip 14 and the auxiliary lip 12, so that the aim of effectively improving the sealing performance of the device is fulfilled.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides an oil blanket for truck, includes axle sleeve (9) and outer oil blanket (16), its characterized in that: the oil seal structure is characterized in that the shaft sleeve (9) is fixedly arranged on one side of the outer oil seal (16), one end, close to the shaft sleeve (9), of the outer oil seal (16) is fixedly connected with an oil seal rubber sleeve (4), one end, far away from the outer oil seal (16), of the shaft sleeve (9) is fixedly connected with a shaft sleeve rubber sleeve (10), the upper end of the oil seal rubber sleeve (4) is provided with an outer convex ring (3), the upper side of the shaft sleeve (9) at one end, close to the shaft sleeve (9), of the oil seal rubber sleeve (4) is fixedly connected with a first dustproof lip (5), the inner side of the shaft sleeve (9) at the lower side of the first dustproof lip (5) at the side end of the oil seal rubber sleeve (4) is fixedly provided with a second dustproof lip (6), the second dustproof lip (6) is contacted with the inner upper wall of the shaft sleeve (9), the lower side of the second dustproof lip (6) at the side wall of the oil seal rubber sleeve (4) is fixedly provided with a third dustproof lip (7), and the inner side wall of the shaft sleeve (9) is contacted with the shaft sleeve (9), the oil blanket gum cover (4) lower extreme is fixed and is provided with vice lip (12), vice lip (12) and the inside lower wall contact of axle sleeve (9), one side fixedly connected with leaf tail (17) of axle sleeve (9) are kept away from to oil blanket gum cover (4) lower extreme, spring groove (15) have been seted up to leaf tail (17) upper end, spring groove (15) internal fixation is provided with spring (13), leaf tail (17) lower extreme is fixed and is provided with main lip (14), main lip (14) lower extreme and axle sleeve (9) contact, the one end upside that axle sleeve (9) is close to vice lip (12) is provided with back oil line (18), oil blanket gum cover (4), third dirt lip (7) and vice lip (12) are filled with lubricating grease (8) with the cavity intussuseption that axle sleeve (9) formed.
2. The oil seal for trucks of claim 1, characterized in that: the shaft sleeve (9) framework is made of high-strength carbon steel, the outer oil seal (16) framework is made of carbon steel, the outer convex ring (3) is made of FKM, and the spring (13) is made of carbon steel.
3. The oil seal for trucks of claim 1, characterized in that: and a front chamfer (1) is arranged on one side of the upper end of the outer oil seal (16) far away from the shaft sleeve (9).
4. The oil seal for trucks of claim 1, characterized in that: the side wall of the oil seal rubber sleeve (4) is arranged between the first dust lip (5) and the second dust lip (6), and the carving teeth (2) are arranged between the second dust lip (6) and the third dust lip (7).
5. The oil seal for trucks of claim 1, characterized in that: an inner convex ring (11) is arranged at the lower end of the shaft sleeve rubber sleeve (10), and the inner convex ring (11) is made of HNBR.
6. The oil seal for trucks of claim 1, characterized in that: and the shaft sleeve rubber sleeve (10) and the shaft sleeve (9) and the oil seal rubber sleeve (4) and the outer oil seal (16) are all vulcanized and bonded at high temperature through adhesives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021864766.1U CN215172231U (en) | 2020-09-01 | 2020-09-01 | Oil seal for truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021864766.1U CN215172231U (en) | 2020-09-01 | 2020-09-01 | Oil seal for truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172231U true CN215172231U (en) | 2021-12-14 |
Family
ID=79349691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021864766.1U Active CN215172231U (en) | 2020-09-01 | 2020-09-01 | Oil seal for truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172231U (en) |
-
2020
- 2020-09-01 CN CN202021864766.1U patent/CN215172231U/en active Active
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