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Sealing structure

A technology of sealing structure and auxiliary lip, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as unsatisfactory sealing performance, and achieve the effect of improving structural stability, improving sealing performance and strong interaction force

Inactive Publication Date: 2021-03-09
C&U CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing performance of existing ordinary structural seals is often unsatisfactory

Method used

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  • Sealing structure
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Examples

Experimental program
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Effect test

Embodiment 1

[0026] Example 1 This embodiment provides a new type of seal comprising a jet 1, a skeleton 2, a main lip 3, a carrier 4, auxiliary lip 5 and an outer lip 7, a skeleton 2 is a core, a top glue 1 set and fixed On one end end of the skeleton 2, the main lip 3, the sub-lip 5, and the outer lip 7 are different extensions on the same part, and the end of the other end of the skeleton 2: the main lip 3 is attached to figure 1 The left side of the skeleton 2 shown in the middle, the lip 5 and the outer lip 7 are attached to figure 1 On the right side of the skeleton 2 shown in. The main lip 3 prevents oil from leaking outward. The outer ring 7 and the sub-lip 5 prevent oil and water vapor, impurities, etc. into the inside of the bearing. The cover 4 is adjacent to the right side of the skeleton 2, and the ends of the sub-lip 5 on the right side of the skeleton 2 and the ends of the outer lip 7 toward the inner side wall of the retaining ring 4 and respectively cooperate with the inner ...

Embodiment 2

[0030] Embodiment 2 This embodiment is in the present embodiment, in the present embodiment, the header 201 and the middle portion 203 are also provided with a connecting portion 202 that is laterally disposed relative to the axis of the tail 204. Of course, in a preferred mode, the connecting portion 202 should be parallel to the axial direction of the mounted bearing. The connecting portion 202 can keep the head 201 and the tail portion 204 both both the connection, and it can remain relatively independent, each act.

Embodiment 3

[0031] Embodiment 3 This embodiment is in relation to the above embodiment in that the root of the sub-lip 5 and the outer lip 7 are connected between the respective embodiments. The angle β-adjusted angle β is preferably 90 ° or less, for example 85 °, 80 °, 75 °, 70 °, 65 °, 30 °, 55, 50, 45, 30, and the like. However, given that the sub-lip 5 and the outer lip 7 need to maintain a certain distance to ensure the effectiveness of the sealing structure of the three lip structure, for this, the angle β is preferably between 75 ° and 50 °, which can make the lips 5 The distance between the outer lip 7 is reduced, and the compact structure is designed, and the sealing effect can also be ensured. After compact design, the deformed press or the central portion 203 has more operating space to avoid affecting the pressure.

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Abstract

The invention provides a sealing structure, which belongs to the technical field of bearing fittings, and comprises a top rubber, a framework, a main lip, a retainer, an auxiliary lip and an outer lip; the framework comprises a head part for covering the top rubber and a tail part for connecting the main lip, the auxiliary lip and the outer lip, and the head part is inclined to the axis of the tail part. The sealing structure of a three-lip structure can be used for deformation press fitting, the sealing structure and the bearing are tightly and more stably matched by combining the advantagesof the press fitting process, and therefore the situation that a sealing piece is pressed away by high temperature and high pressure in the bearing is effectively prevented, and the phenomenon of cover breakage is prevented.

Description

Technical field [0001] The present invention relates to the field of bearing techniques, and more particularly to a sealing structure having a three lip structure. Background technique [0002] With the development of technology, the requirements for sealing performance are increasingly different, and different work occasions have special requirements. Such as the automotive industry, the need to prevent the "collapse" phenomenon in an internal environment of the bearing with a high sealing performance and in an internal environment of high temperature and high pressure (for example, 120 ° C, high temperature, 2 MP or higher as high pressure). However, existing ordinary structural seals, sealing performance often endlessly. [0003] Based on this, this application is proposed. Inventive content [0004] In response to the shortcomings of the prior art, the present invention provides a sealing structure, improving the sealing performance of the bearing and the problem of its anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/3232F16J15/3248F16J15/3284F16J15/3268
CPCF16J15/3232F16J15/3248F16J15/3268F16J15/3284
Inventor 张涛
Owner C&U CO LTD
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