The invention discloses a motorcycle engine mounting structure which is characterized in that a crankcase and a transmission case of an engine are separated, the crankcase and a cylinder head are fixed on a frame, the transmission case is connected with the crankcase through a first bearing to form a rotating connection relation, and meanwhile, the rear end of the transmission case is connected to the frame through a rear shock absorber; the whole transmission case and the rear wheel can rotate around the center of a crankshaft of the crankcase, so that the driving vibration and the jitter of an engine can be reduced and relieved by the rear shock absorber, the vibration is prevented from being directly transmitted to a vehicle body, and the riding comfort of a user can be better improved; besides, through the combined design of the first shaft sleeve, the compression nut, the check ring and the first bearing, the effect of limiting axial movement of the bearing is achieved, it is guaranteed that the bearing and the shaft sleeve are not separated, and it is guaranteed that the transmission box stably rotates around the crankshaft center of the crankcase; the axial stability of the bearing is further enhanced, and the reliability of power transmission and the stable operation of a transmission system are ensured.

    本发明公开了一种摩托车发动机安装结构,其将发动机的曲轴箱与传动箱分离,使曲轴箱与缸头固定在车架上,传动箱通过第一轴承与曲轴箱连接构成一个转动连接关系,同时传动箱的后端通过后减震器连接到车架上,使得整个传动箱及后轮均可绕着曲轴箱的曲轴中心旋转,进而使得行驶振动和发动机的抖动都能被后减震器消减、缓和,防止振动直接传递到车体,能较好的提高用户骑行的舒适性;此外,通过第一轴套、压紧螺母、挡圈与第一轴承的组合设计,以起到限制轴承轴向移动的作用,保证轴承与轴套不分离,保证传动箱绕着曲轴箱的曲轴中心稳定旋转;进一步增强了轴承的轴向稳定性,确保动力传递的可靠性和传动系统的平稳运转。


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    Title :

    Motorcycle engine mounting structure


    Additional title:

    一种摩托车发动机安装结构


    Contributors:
    XIE SHENG (author) / ZENG XIANYAN (author) / MENG XIANGJIE (author) / LI LIANG (author)

    Publication date :

    2025-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62K Fahrräder , CYCLES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES , Zylinder, Kolben oder Gehäuse für Brennkraftmaschinen



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