CN216112127U

CN216112127U - Lip-shaped sealing ring for oil seal

Info

Publication number: CN216112127U
Application number: CN202122575154.1U
Authority: CN
Inventors: 朱迎春; 朱陈晨; 唐奇华
Original assignee: Zhangjiagang Chenhong Environmental Protection Technology Co ltd
Current assignee: Zhangjiagang Chenhong Environmental Protection Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-22
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a lip-shaped sealing ring for an oil seal, which comprises a ring body, wherein the ring body comprises a main ring and a lower edge lip edge coaxially connected to the main ring, the inner diameter of the lower edge lip edge is equal to that of the main ring, the outer diameter of the lower edge lip edge is equal to that of the main ring, the lower edge lip edge is connected to the lower bottom surface of the main ring, and the included angle between the lower edge lip edge and the lower bottom surface of the main ring is an acute angle.

Description

Lip-shaped sealing ring for oil seal

Technical Field

The utility model relates to a sealing ring, in particular to a lip-shaped sealing ring for an oil seal.

Background

An oil seal (oil seal) is a common name of a general seal, and simply called a seal of lubricating oil. It is a mechanical element used to seal grease (oil is the most common liquid substance in transmission systems, also generally referred to as a liquid substance), and it isolates the parts of the transmission parts that need to be lubricated from the output parts, so as not to allow the lubricating oil to leak. Static seals and dynamic seals (generally reciprocating) are called oil seals.

The oil seal is usually provided with a traditional O-shaped ring as a sealing ring, and the traditional O-shaped sealing ring has the problems of poor plane attaching effect, large sealing surface contact area and no auxiliary sealing structure.

Disclosure of Invention

The purpose of the utility model is as follows: the utility model aims to provide a lip-shaped sealing ring for an oil seal, aiming at the defects of the prior art.

The technical scheme is as follows: the lip-shaped sealing ring for the oil seal comprises a ring body, wherein the ring body comprises a main ring and a lower edge lip edge coaxially connected to the main ring, the inner diameter of the lower edge lip edge is equal to that of the main ring, the outer diameter of the lower edge lip edge is equal to that of the main ring, the lower edge lip edge is connected to the lower bottom surface of the main ring, and the included angle between the lower edge lip edge and the lower bottom surface of the main ring is an acute angle.

Preferably, an included angle between the lip edge of the lower edge and the lower bottom surface of the main ring is 15-30 degrees.

Preferably, the thickness ratio of the inner edge and the outer edge of the lower edge lip is 2: 1, and the thickness of the lower edge lip is gradually reduced from the inner edge to the outer edge.

Preferably, an arc chamfer is arranged at the connecting part of the included angle between the lower edge lip edge and the lower bottom surface of the main ring.

Compared with the prior art, the utility model has the following beneficial effects: adopt the single circle structure that main circle and lower lip limit constitute to replace traditional O type circle, better with the laminating nature of sealing position both ends face, and composite construction has better holding ability to the material deformation, and the embedded structure of laminating along the lip limit down also guarantees that it possesses good oil blanket effect.

Drawings

Fig. 1 is a schematic structural view of a lip seal for an oil seal according to the present invention;

fig. 2 is a schematic cross-sectional view of a lip seal for oil sealing according to the present invention.

In the figure: 1. a main ring; 2. a lower edge lip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for convenience in describing and simplifying the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

The utility model provides a lip seal circle for oil blanket, includes the circle body, the circle body includes that main circle 1 and coaxial coupling are at the lower lip limit 2 of following on main circle 1, and the internal diameter of following lip limit 2 down equals with main circle 1 internal diameter, and the external diameter of following lip limit 2 down equals with the external diameter of main circle 1, and lower lip limit 2 is connected on the lower bottom surface of main circle 1 down, and the contained angle of following lip limit 2 down with main circle 1 bottom surface down is the acute angle, and is specific, and the contained angle between the bottom surface is 15 ~ 30 down along lip limit 2 and main circle 1 down. The technical scheme has the advantages that the composite structure formed by the main ring 1 and the lower edge lip edge 2 is adopted to replace a traditional single-ring structure of the O-shaped ring, the composite structure is better in fit with two end faces of the sealing position, the composite structure has better holding capacity for material deformation, and the fit embedded structure of the lower edge lip edge 2 also ensures that the composite structure has a good oil seal effect.

The thickness ratio of the inner edge to the outer edge of the lower edge lip 2 is 2: 1 and the thickness of the lower lip 2 is gradually reduced from the inner edge to the outer edge. The lower edge lip 2 is designed to be gradually reduced in thickness from the inner edge to the outer edge so as to form a skirt-like invasion fitting structure, and better sealing performance can be brought.

An arc chamfer is arranged at the connecting part of the included angle between the lower edge lip edge 2 and the lower bottom surface of the main ring 1. Set up the cambered surface chamfer and can provide elastic support for following down the connecting portion of lip limit 2 and main circle 1 to obtain bigger structural strength, avoid oil blanket department pressure when too big down along lip limit 2 and main circle 1 the connecting portion folding and then lead to down along lip limit 2 and main circle 1 folding laminating lead to holistic seal structure to be destroyed.

In the present invention, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may be directly contacting the first feature and the second feature or indirectly contacting the first feature and the second feature through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example.

Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a lip seal for oil blanket, includes the circle body, its characterized in that: the circle body includes that main circle and coaxial coupling circle the lower lip limit of following on the main circle, the internal diameter and the main circle internal diameter that follow the lip limit down are equal, the external diameter that follows the lip limit down equals with the external diameter of main circle, down along the lip limit connect on the lower bottom surface of main circle, the contained angle that follows the lip limit down bottom surface with main circle is the acute angle down.

2. The lip seal according to claim 1, wherein: the included angle between the lower edge lip edge and the lower bottom surface of the main ring is 15-30 degrees.

3. The lip seal according to claim 1, wherein: the thickness ratio of the inner edge and the outer edge of the lower edge lip is 2: 1, and the thickness of the lower edge lip is gradually reduced from the inner edge to the outer edge.

4. The lip seal according to claim 1, wherein: and an arc chamfer is arranged at the connecting part of the included angle between the lower edge lip edge and the lower bottom surface of the main ring.