Start -up isolator utilizes spring position fixing device for internal -combustion engine

The utility model discloses a start -up isolator utilizes spring position fixing device for internal -combustion engine, its including the box, install the isolator guard shield on this box and be positioned the drive shaft between this box, the isolator guard shield, in this drive shaft solid cover have drive gear, empty cover have can with a boot disk gear mesh's driven gear, wherein, have on the isolator guard shield inner wall with matching with drive shaft's axial counter bore is provided with the first spring that is compression state in this axial counter bore, this first spring other end with drive shaft end connection, the drive shaft other end by a box gasket spacing in on the box. The utility model discloses a simple structure has eliminated axle clearance in the start -up isolator effectively, greatly reduced assembly costs, improved assembly precision and efficiency. 本实用新型公开了种内燃机用启动单向器利用弹簧定位装置，其包括有箱体、安装在该箱体上的单向器护罩、及定位于该箱体、单向器护罩之间的驱动轴，该驱动轴上固套有驱动齿轮、空套有可与启动盘齿相啮合的从动齿轮，其中，单向器护罩内壁上具有与所述驱动轴相配合的轴向沉孔，该轴向沉