CN213088753U

CN213088753U - Novel rotary oil seal with dust lip

Info

Publication number: CN213088753U
Application number: CN202021412697.0U
Authority: CN
Inventors: 于志成; 赵成
Original assignee: Yantai Kunzheng Sealing Products Co ltd
Current assignee: Yantai Kunzheng Sealing Products Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-04-30
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a novel rotatory oil blanket of dustproof lip, which comprises a body, the inside of body is including the seal, the inner wall fixedly connected with main seal lip of seal, the inner wall of main seal lip is provided with the rubber mould, the outer wall of rubber mould and the inner wall fixed connection of main seal lip, the inner wall of rubber mould is provided with interior hub, the outer wall of interior hub and the inner wall fixed connection of rubber mould, the inner wall of interior hub is provided with the air cushion, the outer wall of air cushion and the inner wall fixed connection of interior hub, first recess has been seted up to the inner wall of seal, the inner wall of first recess is provided with main annular spring. Through the air cushion that sets up, when the rotation axis carries out high-speed rotation, cause the extrusion to the body, wear and tear to the body surface, under the effect of air cushion and rubber pad, effectual extrusion force to the high-speed rotatory production of rotation axis cushions, the wearing and tearing that cause when reducing high-speed rotation to reach the effect to extrusion force buffering, extension fixture life.

Description

Novel rotary oil seal with dust lip

Technical Field

The utility model belongs to the technical field of rotatory oil blanket, concretely relates to novel rotatory oil blanket of dust lip.

Background

An oil seal is a common name of a sealing element, namely a lubricating oil seal, and is a mechanical element for sealing grease (oil is the most common liquid substance in a transmission system and also generally refers to the common liquid substance), and is used for isolating a part needing lubrication in a transmission part from a force-applying part so as not to allow lubricating oil to leak, and the sealing element for static sealing and dynamic sealing (generally reciprocating motion) is called an oil seal.

Traditional rotatory oil blanket when using, when transmission part is high-speed rotatory pivot, can cause the extrusion to the rotation oil blanket, and traditional rotatory oil blanket does not possess the function of buffering, and long-time extrusion makes rotatory oil blanket loss great, seriously influences the life of oil blanket, and traditional oil blanket structure majority can not play comparatively qualified sealed effect simultaneously, can appear the condition of oil leak when using, and sealed effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel rotatory oil blanket of dust lip to propose a current rotatory oil blanket in the use among the solution above-mentioned background art, because extrusion, the leakproofness of rotation axis are poor, thereby seriously shorten the life of device and the problem that the oil leak appears.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel rotatory oil blanket of dustproof lip, includes the body, the inside of body is including the seal, the inner wall fixedly connected with main seal lip of seal, the inner wall of main seal lip is provided with the rubber mould, the outer wall of rubber mould and the inner wall fixed connection of main seal lip, the inner wall of rubber mould is provided with interior hub, the outer wall of interior hub and the inner wall fixed connection of rubber mould, the inner wall of interior hub is provided with the air cushion, the outer wall of air cushion and the inner wall fixed connection of interior hub.

Preferably, a first groove is formed in the inner wall of the sealing body, a main annular spring is arranged on the inner wall of the first groove, the outer wall of the main annular spring is fixedly connected with the inner wall of the first groove, a second groove is formed in the inner wall of the sealing body, an auxiliary annular spring is arranged on the inner wall of the second groove, and the outer wall of the auxiliary annular spring is fixedly connected with the inner wall of the second groove.

Preferably, the inner wall of the sealing body is fixedly connected with a first dust lip and a second dust lip, and the inner wall of the first dust lip is fixedly connected with the outer wall of the rubber mold.

Preferably, the inner wall of the sealing body is provided with a framework, and the outer wall of the framework is fixedly connected with the inner wall of the sealing body.

Preferably, the outer wall of the sealing body is provided with an anti-skid ring, and the inner wall of the anti-skid ring is fixedly connected with the outer wall of the sealing body.

Preferably, the inner wall of the main seal lip is provided with a steel wire, and the outer wall of the steel wire is fixedly connected with the inner wall of the main seal lip.

Preferably, the inner wall of the inner hub is provided with a rotating shaft, the outer wall of the rotating shaft is in rolling connection with the inner wall of the inner hub, and the outer wall of the rotating shaft is in rolling connection with the inner wall of the second dust lip.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the air cushion that sets up, when the rotation axis carries out high-speed rotation, can cause the extrusion to the body, wear and tear to the body surface, under the effect of air cushion and rubber pad, effectual extrusion force to the high-speed rotatory production of rotation axis cushions, the wearing and tearing that cause when reducing high-speed rotation to reach the effect to extrusion force buffering, extension device life.

2. Through the main ring spring and the vice ring spring cooperation main seal lip, first dustproof lip, second dustproof lip and the interior hub that set up, make the device can closely laminate with the rotation axis, guarantee the leakproofness of device, avoid the condition of oil leak when using to reach the good effect of leakproofness.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the three-dimensional structure of the present invention;

fig. 3 is a bottom view of the three-dimensional structure of the present invention;

fig. 4 is a partial structural sectional view of the present invention.

In the figure: 1. a body; 2. a seal body; 3. a primary seal lip; 4. a rubber mold; 5. an inner hub; 6. an air cushion; 7. a first groove; 8. a primary annular spring; 9. a second groove; 10. a secondary annular spring; 11. a first dust lip; 12. a second dust lip; 13. a framework; 14. an anti-slip ring; 15. a steel wire; 16. a rotating shaft.

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.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a novel rotatory oil blanket of dustproof lip, including body 1, body 1's inside is including seal 2, seal 2's inner wall fixedly connected with main seal lip 3, main seal lip 3's inner wall is provided with rubber matrix 4, the outer wall of rubber matrix 4 and main seal lip 3's inner wall fixed connection, the inner wall of rubber matrix 4 is provided with interior hub 5, the outer wall of interior hub 5 and the inner wall fixed connection of rubber matrix 4, the inner wall of interior hub 5 is provided with air cushion 6, the outer wall of air cushion 6 and the inner wall fixed connection of interior hub 5.

In this embodiment, through the effect of the air cushion 6 and the rubber matrix 4 that set up, when rotation axis 16 high-speed rotation led to the fact the extrusion to body 1, air cushion 6 and rubber matrix 4 cushioned the extrusion force, and less rotation axis 16 improves body 1's life to the wearing and tearing that body 1 led to the fact.

Specifically, first recess 7 has been seted up to the inner wall of seal 2, and the inner wall of first recess 7 is provided with main ring spring 8, and main ring spring 8's outer wall and first recess 7's inner wall fixed connection, second recess 9 has been seted up to the inner wall of seal 2, and the inner wall of second recess 9 is provided with vice ring spring 10, and vice ring spring 10's outer wall and second recess 9's inner wall fixed connection.

In this embodiment, the main ring spring 8 and the sub ring spring 10 are provided to ensure the sealing between the main body 1 and the rotating shaft 16, thereby preventing oil leakage during use.

Specifically, the inner wall of the sealing body 2 is fixedly connected with a first dust lip 11 and a second dust lip 12, and the inner wall of the first dust lip 11 is fixedly connected with the outer wall of the rubber mold 4.

In this embodiment, the first dust lip 11 and the second dust lip 12 ensure the sealing performance of the device and prevent dust and impurities from entering.

Specifically, the inner wall of the sealing body 2 is provided with a framework 13, and the outer wall of the framework 13 is fixedly connected with the inner wall of the sealing body 2.

In this embodiment, the skeleton 13 is used to support the sealing body 2.

Specifically, the outer wall of the sealing body 2 is provided with an anti-skidding ring 14, and the inner wall of the anti-skidding ring 14 is fixedly connected with the outer wall of the sealing body 2.

In this embodiment, the anti-slip ring 14 is used to prevent the device from slipping out and falling off.

Specifically, the inner wall of the main seal lip 3 is provided with a steel wire 15, and the outer wall of the steel wire 15 is fixedly connected with the inner wall of the main seal lip 3.

In this embodiment, the steel wire 15 is used to increase the deformation resistance of the primary seal lip 3 and reduce the amount of deformation of the primary seal lip 3.

Specifically, the inner wall of the inner hub 5 is provided with a rotating shaft 16, the outer wall of the rotating shaft 16 is in rolling connection with the inner wall of the inner hub 5, and the outer wall of the rotating shaft 16 is in rolling connection with the inner wall of the second dust lip 12.

In this embodiment, the inner hub 5 and the second dust lip 12 are respectively attached to the rotating shaft 16 tightly, thereby ensuring complete sealing.

The utility model discloses a theory of operation and use flow: during the use, place the device level in the cavity downthehole, then with inside the 16 installation of rotation axis device, make interior hub 5, the laminating of second dust lip 12 and rotation axis 16, main ring spring 8 and the vice ring spring 10 through setting up, make interior hub 5, second dust lip 12 can be in the same place with the inseparable laminating of rotation axis 16, guarantee the device leakproofness, rotate when rotation axis 16, when causing the extrusion to the device, under the combined action of rubber mould 4 and air cushion 6, cushion the extrusion force, reduce the loss of device, extension device life.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel dust lip rotary oil seal, includes body (1), its characterized in that: the inside of body (1) is including seal (2), the inner wall fixedly connected with main seal lip (3) of seal (2), the inner wall of main seal lip (3) is provided with rubber matrix (4), the outer wall of rubber matrix (4) and the inner wall fixed connection of main seal lip (3), the inner wall of rubber matrix (4) is provided with interior hub (5), the outer wall of interior hub (5) and the inner wall fixed connection of rubber matrix (4), the inner wall of interior hub (5) is provided with air cushion (6), the outer wall of air cushion (6) and the inner wall fixed connection of interior hub (5).

2. The novel dust lip rotary oil seal of claim 1, characterized in that: first recess (7) have been seted up to the inner wall of seal (2), the inner wall of first recess (7) is provided with main ring spring (8), the outer wall of main ring spring (8) and the inner wall fixed connection of first recess (7), second recess (9) have been seted up to the inner wall of seal (2), the inner wall of second recess (9) is provided with vice ring spring (10), the outer wall of vice ring spring (10) and the inner wall fixed connection of second recess (9).

3. The novel dust lip rotary oil seal of claim 1, characterized in that: the inner wall fixedly connected with first dustproof lip (11) and second dustproof lip (12) of seal (2), the inner wall of first dustproof lip (11) and the outer wall fixed connection of rubber mould (4).

4. The novel dust lip rotary oil seal of claim 1, characterized in that: the inner wall of seal (2) is provided with skeleton (13), the outer wall of skeleton (13) and the inner wall fixed connection of seal (2).

5. The novel dust lip rotary oil seal of claim 1, characterized in that: the outer wall of seal (2) is provided with antiskid circle (14), the inner wall of antiskid circle (14) and the outer wall fixed connection of seal (2).

6. The novel dust lip rotary oil seal of claim 1, characterized in that: the inner wall of main seal lip (3) is provided with steel wire (15), the outer wall of steel wire (15) and the inner wall fixed connection of main seal lip (3).

7. The novel dust lip rotary oil seal of claim 1, characterized in that: the inner wall of interior hub (5) is provided with rotation axis (16), the outer wall of rotation axis (16) and the inner wall roll connection of interior hub (5), the outer wall of rotation axis (16) and the inner wall roll connection of second dust lip (12).