The invention provides a driving disengagement mechanism and an automobile, the driving disengagement mechanism is used for a pure electric four-wheel drive automobile, the driving disengagement mechanism comprises a gear shifting drum, the gear shifting drum is provided with a cam shaft, the surface of the cam shaft is provided with a cam groove used for containing a positioning pin of a shifting fork, and the cam groove comprises a disengagement stroke groove and a return stroke groove; the disengaging and combining stroke groove is formed in the mode that when driving disengaging or combining is conducted, the locating pin drives a driven pin of the shifting fork to move a gear sleeve of the synchronizer assembly left and right, and then power is output or cut off. The return stroke groove is formed in the mode that after driving combination, gaps exist between the driven pin and the two convex edges of the gear sleeve. According to the driving disengaging mechanism and the automobile, collision between the shifting fork and the gear sleeve can be reduced, NVH friction sound is avoided, abrasion between the shifting fork and the gear sleeve is reduced, and the service life of parts is prolonged.

    本发明提供一种驱动脱开机构和汽车,所述驱动脱开机构用于纯电动四驱汽车,包括:换挡鼓,具有凸轮轴,所述凸轮轴表面开设有用于容纳拨叉的定位销的凸轮槽,所述凸轮槽包括脱合行程凹槽和回位行程凹槽;所述脱合行程凹槽成形为,当驱动脱开或结合时,使所述定位销带动拨叉的从动销左右移动同步器总成的齿套,进而输出或切断动力;所述回位行程凹槽成形为,在驱动结合后,使所述从动销与所述齿套的两个凸边都存在间隙。本发明提供的驱动脱开机构和汽车,能减少拨叉与齿套的碰撞,避免NVH摩擦声,减少两者之间的磨损,增长零部件寿命。


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    Title :

    Driving disengaging mechanism and automobile


    Additional title:

    一种驱动脱开机构和汽车


    Contributors:
    PENG YONGJIN (author) / LI MINGFU (author) / XU XUNJIN (author) / RUAN OU (author) / LU XIONG (author) / ZHANG CHAO (author)

    Publication date :

    2022-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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