Gear pre-meshing structure of air starting motor

The invention discloses a gear pre-meshing structure of an air starting motor, and belongs to the technical field of pneumatics. The flywheel mainly comprises a driving gear and a check block, the driving gear comprises a connecting base and a plurality of first gear teeth, the first gear teeth are distributed on the periphery of the connecting base in a surrounding mode, the first gear teeth are arranged on the connecting base in a sliding fit mode in the axial direction of the flywheel, and first elastic pieces are arranged between the connecting base and the first gear teeth; the first elastic pieces apply elastic force to enable the corresponding first gear teeth to always have the trend of moving to be close to one side of the flywheel, the multiple check blocks are arranged, each check block is in sliding fit with the flywheel in the radial direction of the flywheel, and the check blocks can slide till the check blocks coincide with tooth grooves of the flywheel. According to the gear pre-meshing struct