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Sealing device

A sealing device, sealing lip technology, used in engine sealing, transportation and packaging, mechanical equipment, etc.

Pending Publication Date: 2020-08-25
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional box-type sealing devices can pass the splash and muddy water pollution test within a certain period of time, but as the market's requirements for sealing performance continue to increase, the current sealing device needs to withstand the splash and muddy water pollution test for a longer period of time at a higher speed
Traditional hub bearing seals can no longer meet this requirement

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0016] The specific implementation of the sealing device according to the present invention will be described below with reference to the accompanying drawings. The following detailed description and drawings are used to illustrate the principles of the present invention. The present invention is not limited to the described preferred embodiments, and the protection scope of the present invention is defined by the claims.

[0017] According to an embodiment of the present invention, a sealing device is provided. figure 1 and figure 2 A plan sectional view and a perspective sectional view of a sealing device according to an embodiment of the present invention are shown, respectively. The sealing device is installed, for example, in a component with relative rotation, such as a bearing, so that the two axial sides thereof are divided into an outer side O and a sealing side I.

[0018] Such as figure 1 and figure 2 As shown, the sealing device includes a skeleton 10 , an el...

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PUM

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Abstract

The invention relates to a sealing device. The sealing device comprises a ring-shaped framework, an elastic sealing body and a dust-proof cover, wherein the framework and the dust-proof cover can be coaxially arranged in a relatively rotational manner, the elastic sealing body is fixed on the framework and provided with sealing lips extending towards the dust-proof cover, and a sealing channel forcommunicating the external side with the sealing side is formed between the dust-proof cover and the framework; and the sealing device further comprises a sheet-shaped anti-fouling blade, the side surface of the anti-fouling blade faces the relative rotating direction of the sealing device, the anti-fouling blade is fixed to either the framework or the dust-proof cover and extends to the other, and the anti-fouling blade is located outside an outlet, communicating with the external side, of the sealing channel. The sealing device can effectively prevent pollutants from invading.

Description

technical field [0001] The invention relates to the technical field of sealing. In particular, the invention relates to a sealing device for dynamic sealing. Background technique [0002] Lubricants are stored in many parts in relative rotation for lubrication to prevent overheating and wear. For example, lubricants such as grease are usually injected between the inner and outer rings of the bearing. In order to achieve a long-term lubrication effect, it is necessary to install a sealing device between the parts with relative rotation to isolate the space inside and outside the parts, so as to keep the lubricant inside the sealed space and prevent external pollutants from entering the sealed space. [0003] For example, in patent documents such as CN 105864299 A and CN 104220768 A, common sealing devices currently used for hubs can be seen. This type of sealing device usually includes a skeleton and dust cover made of metal materials and a sealing body made of elastic mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/78F16J15/3232F16J15/3252
CPCF16C33/7816F16C33/7823F16C2326/02F16J15/3232F16J15/3252
Inventor 张岳林刘鑫
Owner SCHAEFFLER TECH AG & CO KG