CN216975778U

CN216975778U - High-temperature-resistant automobile crankshaft oil seal

Info

Publication number: CN216975778U
Application number: CN202220662999.6U
Authority: CN
Inventors: 吴德斌
Original assignee: CHANGZHOU RONGHE POLYMER MATERIAL TECHNOLOGY CO LTD
Current assignee: CHANGZHOU RONGHE POLYMER MATERIAL TECHNOLOGY CO LTD
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-07-15
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a high-temperature-resistant automobile crankshaft oil seal, which relates to the technical field of oil seal equipment and comprises a metal framework, wherein an oil seal body is arranged on the surface of the metal framework, a main lip and a dustproof lip are respectively and integrally formed on the surface of the oil seal body, an auxiliary sealing ring is further arranged at the inner side of the oil seal body, a self-tightening spring is movably sleeved on the surface of the oil seal body, and oil stagnation grooves are axially and uniformly arranged on the outer side wall of the oil seal body. The oil-retaining groove has the advantages of simple structure and good sealing performance by arranging the supporting part, the self-tightening spring, the wrapping ring and the oil-retaining groove, achieves the effect of performing auxiliary sealing and preventing the lubricating oil from leaking to cause serious abrasion of the transmission part, and can retain the lubricating oil in the oil-retaining groove, thereby solving the problem that the lubricating oil at the transmission part can leak to cause serious abrasion of the transmission part once the oil seal lacking the auxiliary sealing structure is damaged.

Description

High-temperature-resistant automobile crankshaft oil seal

Technical Field

The utility model relates to the technical field of oil seal equipment, in particular to a high-temperature-resistant automobile crankshaft oil seal.

Background

The oil seal is a common name of a sealing element, namely the seal of lubricating oil, is a mechanical element for sealing grease, separates a part needing to be lubricated in a transmission part from a force-applying part, and does not allow the lubricating oil to leak, and is represented by a TC oil seal which is a double-lip oil seal with a self-tightening spring and completely coated by rubber.

Some current high temperature resistant automobile crankshaft oil seals can play the effect of preventing leaking to lubricating oil, but after using a period, oil blanket structure can be impaired, but the position that the oil blanket was located leads to its inconvenient maintenance of carrying out the regularity to lack auxiliary seal structure, the oil blanket in case impaired, the lubricating oil of drive disk assembly department will reveal, causes the serious problem of drive disk assembly wearing and tearing.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-temperature-resistant automobile crankshaft oil seal which has the advantages of simple structure and good sealing performance and solves the problem that once an oil seal lacking an auxiliary sealing structure is damaged, lubricating oil at a transmission part can be leaked to cause serious abrasion of the transmission part.

In order to realize the purposes of simple structure and good sealing performance, the utility model provides the following technical scheme: the utility model provides a high temperature resistant automobile crankshaft oil blanket, includes metal framework, metal framework's surface is provided with the oil blanket body, the surface of oil blanket body is integrative respectively to be formed and is provided with main lip and dustproof lip, the interior survey portion of oil blanket body still is provided with supplementary sealing ring, the surface activity of oil blanket body has cup jointed from the tight spring, the oil groove that stagnates has been seted up to the lateral wall axial align to grid of oil blanket body.

As a preferred technical scheme of the utility model, the auxiliary sealing ring is fixedly connected to the inner side wall of the oil seal body between the main lip and the dust lip, and the auxiliary sealing ring is of a hollow structure.

In a preferred embodiment of the present invention, the auxiliary seal ring has an oil slinger integrally formed on a surface thereof, the oil slinger being inclined in a direction toward the main lip, and the oil slinger being uniformly distributed along an inner side wall of the auxiliary seal ring.

As a preferable technical scheme of the present invention, a wrapping ring is integrally formed on a surface of the oil seal body, an inner side wall of the wrapping ring is movably connected to a surface of the self-tightening spring, and the wrapping ring is bent toward the auxiliary sealing ring.

As a preferable technical scheme of the utility model, the outer side wall of the oil seal body is axially and uniformly integrally formed with a slip-off preventing ring, and the slip-off preventing ring is obliquely arranged towards a direction far away from the self-tightening spring.

As a preferable technical solution of the present invention, the metal framework is integrally formed with an extension portion, a surface of the extension portion is connected to an inner side wall of the oil seal body, and the extension portion is disposed to be inclined toward the main lip.

In a preferred embodiment of the present invention, the metal framework is integrally formed with a support portion, the support portion is inclined toward the dust lip, and a surface of the support portion is connected to an inner sidewall of the oil seal body.

Compared with the prior art, the utility model provides a high-temperature-resistant automobile crankshaft oil seal, which has the following beneficial effects:

1. this high temperature resistant automobile crankshaft oil blanket, through setting up supplementary sealing ring, stagnant oil groove and oil scraper ring, install the oil blanket body back on the output shaft, under the effect of self-tightening spring, the main lip can with output shaft in close contact with, thereby seal, after the self-tightening spring damages, under the effect of oil scraper ring, can prevent leaking lubricating oil, and stagnant oil groove also can be detained lubricating oil inside it, it can prevent lubricating oil and reveal to have reached, lead to the serious effect of drive disk assembly wearing and tearing, the oil blanket that has solved and lacks supplementary seal structure is in case impaired, the lubricating oil of drive disk assembly department will be revealed, cause the serious problem of drive disk assembly wearing and tearing.

2. This high temperature resistant automobile crankshaft oil blanket through setting up the parcel ring, supporting part and anticreep ring, the parcel ring can be protected from the tight spring to when the installation, from the tight spring dislocation, the supporting part can make dust lip and output shaft in close contact with, under the effect of anticreep ring, the oil blanket body is difficult for droing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of an auxiliary sealing ring according to the present invention;

FIG. 3 is a schematic view of the metal skeleton structure of the present invention.

In the figure: 1. a metal skeleton; 2. an oil seal body; 3. a main lip; 4. a dust lip; 5. an auxiliary seal ring; 6. a self-tightening spring; 7. an oil stagnation groove; 8. an oil slinger; 9. wrapping the ring; 10. the anti-drop ring; 11. an extension portion; 12. a support portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the utility model discloses a high-temperature resistant automobile crankshaft oil seal, which comprises a metal framework 1, wherein an oil seal body 2 is arranged on the surface of the metal framework 1, a main lip 3 and a dust lip 4 are respectively and integrally formed on the surface of the oil seal body 2, an auxiliary sealing ring 5 is further arranged at the inner side of the oil seal body 2, a self-tightening spring 6 is movably sleeved on the surface of the oil seal body 2, and oil stagnation grooves 7 are axially and uniformly arranged on the outer side wall of the oil seal body 2.

Specifically, auxiliary seal ring 5 fixed connection is on the inside wall of oil blanket body 2 between main lip 3 and dust lip 4, auxiliary seal ring 5 is hollow structure.

In this embodiment, the auxiliary seal ring 5 is a hollow structure, and is not only easy to deform when being extruded, but also can increase the surface contact area of the surface of the auxiliary seal ring 5 and the output shaft due to the reason of the internal air, so as to play an auxiliary sealing effect, so that the main lip 3 is prevented from reducing the sealing performance after the self-tightening spring 6 is damaged, and the lubricating oil is leaked.

Specifically, the surface of the auxiliary sealing ring 5 is integrally provided with an oil slinger 8, the oil slinger 8 is obliquely arranged towards the main lip 3, and the oil slinger 8 is uniformly distributed along the inner side wall direction of the auxiliary sealing ring 5.

In this embodiment, the slinger 8 is obliquely arranged toward the main lip 3, and when the lubricating oil leaks, the slinger 8 can block the lubricating oil to prevent a large amount of leakage.

Specifically, the surface of the oil seal body 2 is integrally formed with a wrapping ring 9, the inner side wall of the wrapping ring 9 is movably connected with the surface of the self-tightening spring 6, and the wrapping ring 9 is arranged towards the auxiliary sealing ring 5 in a bending mode.

In this embodiment, wrap up ring 9 and mainly protect from the tight spring 6, prevent to receive the striking, when the installation simultaneously, can prevent from the tight spring 6 dislocation, lead to main lip 3 leakproofness not good.

Specifically, the outer side wall of the oil seal body 2 is axially and uniformly integrally formed with an anti-drop ring 10, and the anti-drop ring 10 is obliquely arranged towards the direction away from the self-tightening spring 6.

In this embodiment, the anti-drop ring 10 can increase the friction force between the oil seal body 2 and the transmission component, and can prevent the anti-drop ring 10 from dropping easily.

Specifically, the metal framework 1 is integrally formed with an extension portion 11, the surface of the extension portion 11 is connected with the inner side wall of the oil seal body 2, and the extension portion 11 is obliquely arranged towards the main lip 3.

In this embodiment, the extension 11 can increase the supporting area of the metal framework 1, so that the shape of the oil seal body 2 is not easy to deform, and the sealing performance is better.

Specifically, the metal framework 1 is integrally formed with a supporting portion 12, the supporting portion 12 is obliquely arranged towards the direction of the dust lip 4, and the surface of the supporting portion 12 is connected with the inner side wall of the oil seal body 2.

In this embodiment, the support portion 12 is used to support the dust lip 4, and can prevent the dust lip from easily coming out of contact with the output shaft, which leads to deterioration of the dust-proof effect.

The working principle and the using process of the utility model are as follows: when the oil seal is used, the oil seal body 2 is sleeved on an output shaft of a transmission part needing oil seal, under the action of the self-tightening spring 6, the main lip 3 can be in close contact with the surface of the output shaft, under the initial state, the inner diameter of the auxiliary sealing ring 5 is smaller than that of the main lip 3, after the oil seal body 2 is sleeved on the output shaft, the auxiliary sealing ring 5 is extruded and deformed, the hollow structure is favorable for deformation of the auxiliary sealing ring 5, the inner side wall of the hollow structure can be in contact with the output shaft, the inner side wall of the dust-proof lip 4 can also be in contact with the surface of the output shaft, the dust-proof effect is achieved, after the oil seal body 2 is installed, except the outer side wall of the oil seal body 2 at the dust-proof lip 4 side, other surfaces are in contact with the transmission part, the oil baffle ring 8 is obliquely arranged towards the direction of the main lip 3, lubricating oil can be stopped, and the sealing performance of the main lip 3 is prevented from being reduced after the self-tightening spring 6 is damaged, the lubricating oil is exposed from the joint of the output shaft and the oil seal body 2, the outer side wall of the oil seal body 2 is in close contact with a transmission part, the oil stagnation groove 7 can retain part of the leaked lubricating oil in the oil stagnation groove 7, the anti-falling ring 10 is obliquely arranged towards the direction far away from the self-tightening spring 6, the friction force of the oil seal body 2 in the direction far away from the transmission part can be increased, the oil seal body 2 can be prevented from falling off from the transmission part easily, the wrapping ring 9 can protect the self-tightening spring 6 and prevent the self-tightening spring from falling off easily, the wrapping ring 9 is bent towards the direction of the auxiliary sealing ring 5 and can be installed to prevent the self-tightening spring 6 from contacting with the transmission part and cause the self-tightening spring 6 to be dislocated, the extension part 11 is used for increasing the structural strength of the metal framework 1 and preventing the easy deformation of the metal framework, thereby causing the deformation of the oil seal body 2 and influencing the sealing, the supporting part 12 can support the dustproof lip 4, preventing it from easily coming out of contact with the output shaft, resulting in a deterioration of the dust-proof effect.

To sum up, this high temperature resistant automobile crankshaft oil blanket through setting up supporting part 12, from tight spring 6, parcel ring 9 and stagnant oil groove 7, has solved in case impaired in the oil blanket that lacks auxiliary seal structure, the lubricating oil of drive disk assembly department will be revealed, causes the serious problem of drive disk assembly wearing and tearing.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high temperature resistant car crankshaft oil blanket, includes metal framework (1), its characterized in that: the surface of metal framework (1) is provided with oil blanket body (2), the surface of oil blanket body (2) is integrated into one piece respectively and is provided with main lip (3) and dust lip (4), the interior portion of surveying of oil blanket body (2) still is provided with auxiliary seal ring (5), self-tightening spring (6) have been cup jointed in the surface activity of oil blanket body (2), stagnant oil groove (7) have been seted up to the lateral wall axial align to grid of oil blanket body (2).

2. The high-temperature-resistant automobile crankshaft oil seal as claimed in claim 1, wherein: auxiliary seal ring (5) fixed connection is on the inside wall of oil blanket body (2) between main lip (3) and dust lip (4), auxiliary seal ring (5) are hollow structure.

3. The high-temperature-resistant automobile crankshaft oil seal as claimed in claim 1, wherein: the surface of the auxiliary sealing ring (5) is integrally provided with an oil slinger (8), the oil slinger (8) is obliquely arranged towards the main lip (3), and the oil slinger (8) is uniformly distributed along the inner side wall direction of the auxiliary sealing ring (5).

4. The high-temperature-resistant automobile crankshaft oil seal as claimed in claim 1, wherein: the surface of the oil seal body (2) is integrally formed and provided with a wrapping ring (9), the inner side wall of the wrapping ring (9) is movably connected with the surface of the self-tightening spring (6), and the wrapping ring (9) is arranged towards the auxiliary sealing ring (5) in a bending mode.

5. The high-temperature-resistant automobile crankshaft oil seal as claimed in claim 1, wherein: the outer side wall of the oil seal body (2) is axially and uniformly integrally formed with an anti-drop ring (10), and the anti-drop ring (10) is obliquely arranged towards the direction far away from the self-tightening spring (6).

6. The high-temperature-resistant automobile crankshaft oil seal as claimed in claim 1, wherein: the metal framework (1) is integrally provided with an extension part (11), the surface of the extension part (11) is connected with the inner side wall of the oil seal body (2), and the extension part (11) is obliquely arranged towards the main lip (3).

7. The high-temperature-resistant automobile crankshaft oil seal as claimed in claim 1, wherein: the metal framework (1) is integrally formed and provided with a supporting part (12), the supporting part (12) is obliquely arranged towards the direction of the dust lip (4), and the surface of the supporting part (12) is connected with the inner side wall of the oil seal body (2).