Spiral cambered surface gear train

The utility model relates to an automobile spare and accessory part technical field especially relates to a spiral cambered surface gear train. The utility model provides a spiral cambered surface gear train, including first spiral cambered surface gear and second spiral cambered surface gear, the teeth of a cogwheel of first spiral cambered surface gear are by first round rack circle line, second teeth of a cogwheel pitch arc and helix are constituteed, the the number of the gear teeth of first spiral cambered surface gear volume be 28 and is just adjacently connected by circular arc concave between two, the teeth of a cogwheel of second spiral cambered surface gear comprise second helix and third helix, the the number of the gear teeth volume of second spiral cambered surface gear is 7, second spiral cambered surface gear both ends are equipped with the triangle -shaped constant head tank, the teeth of a cogwheel of second spiral cambered surface gear are 12mm to the distance of controlling the both ends fa