Oil supply angle automatic advance unit of circlip structure for holes

The utility model discloses an oil supply angle automatic advance unit of a circlip structure for hole. The advance unit comprises a driving gear, a driven plate, a flyweight and a circlip for the holes, wherein the driving gear is connected with the driven plate in a matched mode, the inner side of the edge of the driven plate is provided with a positioning step and a circlip groove, the inside of the left side of the driven plate is provided with two eccentric wheels in the radial direction, the flyweight is arranged in an inner cavity of the right side of the driven plate, the right side of the flyweight is provided with a cover plate and the circlip for the holes, the inside of the flyweight is provided with a spring and a spring shaft, the circlip for the holes is disposed in the circlip groove, the driving gear and the small eccentric wheel is connected through a drive pin, and the flyweight and the large eccentric wheel are connected through a flyweight pin. According to the oil supply angle automatic