Main case and auxiliary case pneumatic gear-shifting transmission operating mechanism

The utility model belongs to the category of automobile transmissions, and particularly relates to a main case and auxiliary case pneumatic gear-shifting transmission operating mechanism. The main case and auxiliary case pneumatic gear-shifting transmission operating mechanism is characterized in that a main case is composed of an air-cylinder cylinder body, an air cylinder cover and a pneumatic head cover, wherein a return spring, gaskets, a piston rod and a gear-shifting shifting-block are arranged in the pneumatic head cover, the gear-shifting shifting-block is arranged on the piston rod, the return spring and the gaskets are arranged on two sides of the gear-shifting shifting-block, and a main case pneumatic operating mechanism drives the piston rod to move through air suction of an air cylinder; and an auxiliary case is composed of an air cylinder body and an air cylinder cover, wherein the a shift fork shaft, an air cylinder piston, a locking nut and a gasket are arranged in the air cylinder body, a shi