Additional belt pulley structure integrated with turning function

The invention discloses an additional belt pulley structure integrated with a turning function. The additional belt pulley structure is fixedly mounted on a crankshaft and comprises an additional beltpulley, a mounting circumferential surface of the crankshaft is arranged on the inner side of the additional belt pulley, and nail passing holes and turning holes are formed in the mounting circumferential surface. According to the additional belt pulley structure integrating with the turning function, on the premise that the basic function that the additional belt pulley of the crankshaft normally outputs engine power is guaranteed, the structure design is optimized, acting points are increased for the additional belt pulley so that the turning function can be realized, and thus the problemsthat an internal combustion engine is difficult in realizing turning and no acting point exists in turning are solved. 本发明公开了一种集成盘车功能的附加皮带轮结构，固定安装于曲轴，包括附加皮带轮，附加皮带轮的内侧设有曲轴的安装圆周面，在所述安装圆周面上设有过钉孔和盘车孔。本发明提供一种集成盘车功能的附加皮带轮结构，保证曲轴附加皮