Sealing device and hub driving device

A technology of sealing device and sealing lip, which is applied in the direction of transmission parts, engine sealing, engine components, etc., can solve the problems of large instantaneous impact of sealing lip, insufficient spring force, and affecting dynamic sealing effect, etc.
CN110630728APending Publication Date: 2019-12-31SCHAEFFLER TECH AG & CO KG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SCHAEFFLER TECH AG & CO KG
Publication Date
2019-12-31

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Abstract

The invention relates to a sealing device (11) and a hub driving device. The sealing device (11) is provided with an annular sealing body (3) made of an elastic material, the sealing body (3) is provided with sealing lips (7) compressed on the sealing surface, the sealing lips (7) and the sealing surface are dynamically sealed, the sealing device (11) is further provided with a reinforcing ring (6) integrally arranged with the sealing lips (7), the rigidity of the reinforcing ring (6) is larger than the rigidity of the sealing lips (7), and the hub driving device is provided with the sealing device.
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Description

technical field

[0001] The invention relates to a sealing device for dynamic sealing of sealing surfaces. The invention also relates to a wheel hub drive for a vehicle, which has a sealing device as described above. Background technique

[0002] The traditional sealing device is mainly composed of a dust cover and a sealing body made of rubber. There is always a skeleton in the sealing body, and the sealing body has a sealing lip that forms a dynamic seal with the sealing surface for sealing lubricating oil. Additionally, the seal body has a dust lip that forms a dynamic seal with the shield to prevent contamination from entering the oil area.

[0003] However, when the sealing device is used, for example, in a wheel hub driving device, since the sealing device is arranged between the housing and the flange shaft, the flange shaft has relatively large radial runout relative to the sealing device. In response to this situation, usually, the waist connecting the main body of...

Claims

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