Actuator driven by shifting rod and shifting fork

The invention belongs to the technical field of fluid pressure actuating mechanisms in mechanical engineering, and particularly relates to a shifting rod and shifting fork driven actuator which comprises a piston cylinder and a piston rod, the piston rod comprises a piston head and a guide rod, two ends of the piston cylinder are connected with end covers, one end, connected with the guide rod, of the piston head forms a retraction oil cavity, and the other end of the piston head forms an extension oil cavity; a driving rod is arranged on the end cover capable of rotationally penetrating through one end extending out of the oil cavity, and the piston head slidably sleeves the driving rod and synchronously rotates along with the driving rod; oil inlet holes and oil outlet holes are circumferentially formed in the middle of the piston cylinder at intervals; a plurality of flow distribution grooves are formed in the piston head in the circumferential direction at intervals, retraction oil grooves communicate wit