The low-torque self-adjusting sealing assembly comprises a framework I, a framework II and a framework III, the framework I and the framework II are arranged on a hub outer ring, the framework III is arranged on a flange plate, a roller path is formed between the hub outer ring and the flange plate, and a cavity and a gap are formed in the outer side of the roller path. The framework I, the framework II and the framework III are located in a cavity on the outer side of the roller path, the framework I is wrapped with water swelling rubber, the framework II is wrapped with wrapping rubber, and protrusions of the wrapping rubber are matched with the framework III. The sealing structure has the beneficial effects that the long and narrow sealing channel is additionally arranged, the labyrinth effect is generated, the length of a muddy water invasion path is increased, then the difficulty that external muddy water and dust invade a bearing raceway is increased, and damage of dust particles and impurities in muddy water to the sealing lip is reduced. Contact lips are reduced, water absorption rubber is additionally arranged, low torque is achieved while high sealing performance is guaranteed, and the purpose of self-adjustment of the sealing performance is achieved.

    本发明涉及一种低转矩自调节密封组件及其轮毂轴承,包括骨架Ⅰ、骨架Ⅱ和骨架Ⅲ,骨架Ⅰ和骨架Ⅱ设置在轮毂外圈上,骨架Ⅲ设置在法兰盘上,轮毂外圈和法兰盘之间形成滚道,所述滚道外侧形成空腔和空隙,骨架Ⅰ、骨架Ⅱ和骨架Ⅲ位于滚道外侧空腔,骨架Ⅰ上包裹有吸水膨胀橡胶,骨架Ⅱ上包有外包橡胶,外包橡胶的突起与骨架Ⅲ相配合。本发明有益的效果是:本发明通过增设狭长密封通道,产生迷宫效应,增长泥水侵入的路径长度,进而增加外界泥水灰尘入侵轴承滚道的难度,减少泥水中尘粒杂质对密封唇的破坏。减少接触唇口,增设吸水橡胶,在确保高密封性的同时实现低转矩,并达到自调节密封性能的目的。


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    Titel :

    Low-torque self-adjusting sealing assembly and hub bearing thereof


    Weitere Titelangaben:

    一种低转矩自调节密封组件及其轮毂轴承


    Beteiligte:
    CHEN WEIJUN (Autor:in) / WANG FENG (Autor:in)

    Erscheinungsdatum :

    2022-04-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16C SHAFTS , Wellen / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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