The invention discloses an automobile rear axle ventilation plug which comprises a ventilation plug body (1), a ventilation hole (2) is formed in the center of the ventilation plug body (1), inner baffles (3) are arranged on the inner ring of the top face of the ventilation plug body (1) at equal intervals in the circumferential direction, and outer baffles (4) are arranged on the outer ring of the top face of the ventilation plug body (1) at equal intervals in the circumferential direction. An elastic blocking mechanism is arranged at the lower end in the ventilation hole (2), and the top face of the ventilation plug body (1) is of a conical face structure with the outer portion higher than the inner portion. The pressure in the rear axle cavity can be adjusted, effective backflow of gear oil can be guaranteed, and foreign matter can be prevented from entering the rear axle.

    本发明公开了一种汽车后桥通气塞,包括通气塞主体(1),所述通气塞主体(1)的中心形成有通气孔(2),所述通气塞主体(1)顶面的内圈沿周向等间距设置有内挡板(3),所述通气塞主体(1)顶面的外圈沿周向等间距设置有外挡板(4),所述通气孔(2)内的下端设置有弹性阻挡机构,所述通气塞主体(1)的顶面为外高内低的锥面结构。本发明既能够实现对后桥腔内压力的调节,又能够保证齿轮油有效回流,还能够防止异物进入后桥。


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    Title :

    Automobile rear axle ventilation plug


    Additional title:

    汽车后桥通气塞


    Contributors:
    XING ZHIBIN (author) / WANG JIE (author) / ZHANG CUI (author) / SUN LINGDONG (author) / WANG JIA (author) / GE SHIXIAN (author)

    Publication date :

    2022-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge



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