CN210890097U

CN210890097U - Self-tightening rubber oil seal

Info

Publication number: CN210890097U
Application number: CN201921707161.9U
Authority: CN
Inventors: 林庆兴
Original assignee: Xiamen Tianlifu Rubber & Plastic Products Co ltd
Current assignee: Xiamen Tianlifu Rubber & Plastic Products Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-30
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a self-tightening rubber oil seal, it includes rubber subject, and rubber subject is the loop configuration, and rubber subject comprises outer diameter face, terminal surface and inner diameter face, and main lip and vice lip are connected to the lower extreme of inner diameter face, and the lower extreme of main lip and vice lip is the V-arrangement, all moves towards the inboard, and the top of main lip is equipped with main self-tightening spring, and the top of vice lip is equipped with vice self-tightening spring. The beneficial effects of the utility model are that: by adopting the design of the main lip and the auxiliary lip, if one lip is worn, the other lip can also play a role in sealing, so that the service life of the oil seal can be greatly prolonged; the reinforcing rods are arranged, so that the framework is not easy to deform; the auxiliary lip is arranged on the right side of the main lip, and the diameter of the auxiliary self-tightening spring is smaller than that of the main self-tightening spring, so that the main self-tightening spring and the auxiliary self-tightening spring can be conveniently installed and replaced.

Description

Self-tightening rubber oil seal

Technical Field

The utility model relates to a self-clinching formula rubber oil blanket belongs to sealing washer technical field.

Background

Oil seals are a common term for seals, simply the 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 generally divided into a single type and an assembly type, wherein the assembly type is that a framework and a lip material can be freely combined and is generally used for special oil seals. The single oil seal generally applies pressure to the lip through a self-tightening spring, so that the lip is tightly attached to the rotating shaft, and a sealing effect is achieved. The current self-tightening oil seal adopts a single lip type, so that oil leakage is easy to occur after abrasion, and great inconvenience is brought to use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a self-tightening rubber oil seal, and this rubber oil seal adopts the design of major-minor lip, can improve oil blanket life greatly, and is equipped with the stiffener for skeleton non-deformable.

The utility model discloses a following scheme realizes: the utility model provides a self-tightening rubber oil seal, its includes rubber subject, rubber subject is the loop configuration, rubber subject comprises outer diameter face, terminal surface and inner diameter face, main lip and vice lip are connected to the lower extreme of inner diameter face, main lip with the lower extreme of vice lip is the V-arrangement, all moves towards the inboard, the top of main lip is equipped with main self-tightening spring, the top of vice lip is equipped with vice self-tightening spring.

The end face is connected between the outer diameter face and the inner diameter face, and the outer diameter face, the end face and the inner diameter face enclose a cavity structure with an opening at one side.

The cavity structure is also annular.

The rubber body is internally provided with a framework, the section of the framework is of an inverted L-shaped structure, and the framework is arranged on the outer diameter surface and the end surface.

Be equipped with many stiffeners in the rubber main part, the stiffener is connected the horizontal plane and the vertical plane of skeleton, and many stiffener evenly distributed.

The lower end of the inner diameter surface is connected with a dust lip, and the dust lip and the end surface are on the same side.

The volume of the main lip is larger than that of the auxiliary lip, and the volume of the main self-tightening spring is larger than that of the auxiliary self-tightening spring.

The upper end of the inner diameter surface is provided with a spring groove, and the main self-tightening spring and the auxiliary self-tightening spring are embedded into the spring groove.

The utility model has the advantages that:

1. the utility model relates to a self-tightening rubber oil seal adopts the design of main and auxiliary lips, if one lip is worn, the other lip can also play the role of sealing, and the service life of the oil seal can be greatly prolonged;

2. the self-tightening rubber oil seal of the utility model is provided with the reinforcing rod, so that the framework is not easy to deform;

3. the utility model relates to a vice lip of self-tightening rubber oil seal is on the right side of main lip, and vice self-tightening spring diameter is less than main self-tightening spring, and the installation of the main and vice self-tightening springs of being convenient for is changed like this.

Drawings

Fig. 1 is a schematic view of the front view cross section structure of the self-tightening rubber oil seal of the present invention.

In the figure: 1 is the rubber subject, 2 is the external diameter face, 3 is the terminal surface, 4 is the internal diameter face, 5 is the main lip, 6 is vice lip, 7 is main self-tightening spring, 8 is vice self-tightening spring, 9 is the cavity structure, 10 is the skeleton, 11 is the stiffener, 12 is the dust lip.

Detailed Description

The present invention will be further described with reference to fig. 1, but the scope of the present invention is not limited to the description.

In which like parts are designated by like reference numerals. It is noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component, and the drawings are in greatly simplified form and employ non-precise ratios, merely for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention.

In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development efforts may be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.

The utility model provides a from compact form rubber oil seal, its includes rubber subject 1, and rubber subject 1 is the loop configuration, and rubber subject 1 comprises external diameter face 2, terminal surface 3 and inside diameter face 4, and main lip 5 and vice lip 6 are connected to the lower extreme of inside diameter face 4, and the lower extreme of main lip 5 and vice lip 6 is the V-arrangement, all towards the inboard, and the top of main lip 5 is equipped with owner from tight spring 7, and the top of vice lip 6 is equipped with vice from tight spring 8.

The end face 3 is connected between the outer diameter face 2 and the inner diameter face 4, and the outer diameter face 2, the end face 3 and the inner diameter face 4 enclose a cavity structure 9 with one side opened.

The cavity structure 9 is also ring-shaped.

A framework 10 is arranged in the rubber main body 1, the section of the framework 10 is of an inverted L-shaped structure, and the framework 10 is arranged in the outer diameter surface 2 and the end surface 3.

Be equipped with many stiffeners 11 in the rubber main part 1, stiffener 11 connects the horizontal plane and the vertical plane of skeleton 10, and many stiffeners 11 evenly distributed.

The lower end of the inner diameter surface 4 is connected with a dust lip 12, and the dust lip 12 and the end surface 3 are on the same side.

The volume of the primary lip 5 is greater than that of the secondary lip 6, and the volume of the primary self-tightening spring 7 is greater than that of the secondary self-tightening spring 8.

The upper end of the inner diameter surface 4 is provided with a spring groove, and a main self-tightening spring 7 and an auxiliary self-tightening spring 8 are embedded into the spring groove.

During the use, the rubber main body 1 is wrapped on the outer side of the rotating shaft, and the main lip 5 and the auxiliary lip 6 are tightly attached to the rotating shaft under the action of the main self-tightening spring 7 and the auxiliary self-tightening spring 8.

Although the invention has been shown and described in detail with respect to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a self-clinching formula rubber oil blanket which characterized in that: it includes rubber subject (1), rubber subject (1) is the loop configuration, rubber subject (1) comprises external diameter face (2), terminal surface (3) and inside diameter face (4), main lip (5) and vice lip (6) are connected to the lower extreme of inside diameter face (4), main lip (5) with the lower extreme of vice lip (6) is the V-arrangement, all moves towards the inboard, the top of main lip (5) is equipped with main self-tightening spring (7), the top of vice lip (6) is equipped with vice self-tightening spring (8).

2. A self-tightening rubber oil seal according to claim 1, wherein: the end face (3) is connected between the outer diameter face (2) and the inner diameter face (4), and the outer diameter face (2), the end face (3) and the inner diameter face (4) enclose a cavity structure (9) with an opening on one side.

3. A self-tightening rubber oil seal according to claim 2, wherein: the cavity structure (9) is also annular.

4. A self-tightening rubber oil seal according to claim 1, wherein: be equipped with skeleton (10) in rubber subject (1), the section of skeleton (10) is the L type structure of invering, skeleton (10) set up outer diameter face (2) with in terminal surface (3).

5. The self-tightening rubber oil seal according to claim 4, wherein: be equipped with many stiffeners (11) in rubber main part (1), stiffener (11) are connected the horizontal plane and the vertical plane of skeleton (10), and many stiffener (11) evenly distributed.

6. A self-tightening rubber oil seal according to claim 1, wherein: the lower extreme of inside diameter face (4) is connected dust lip (12), dust lip (12) with terminal surface (3) are in same one side.

7. A self-tightening rubber oil seal according to claim 1, wherein: the volume of the main lip (5) is larger than that of the auxiliary lip (6), and the volume of the main self-tightening spring (7) is larger than that of the auxiliary self-tightening spring (8).

8. A self-tightening rubber oil seal according to claim 1, wherein: the upper end of the inner diameter surface (4) is provided with a spring groove, and the main self-tightening spring (7) and the auxiliary self-tightening spring (8) are embedded into the spring groove.