Mining diesel engine control valve type high-pressure common rail oil injector based on magnetostrictive effect

The invention discloses a mining diesel engine control valve type high-pressure common rail fuel injector based on the magnetostrictive effect, and belongs to the technical field of fuel injection. The fuel injector comprises a pre-tightening headless screw, a magnetic conductive block A, a giant magnetic support base (lower), a giant magnetostrictive rod, a magnetic conductive block B, a driver baffle (lower), an output rod, a connecting nut, a low-pressure fuel outlet, a valve seat bottom plate, a fuel injector body, a plunger, a nozzle needle valve, a driver rear end cover, a driver baffle (upper), a giant magnetic support base (upper), a coil, a driver shell, a giant magnetic support and a disc spring. An output lever limiting cavity, an output lever cavity, a ball valve, a ball valve cavity, a high-pressure fuel oil inlet, a needle valve reset spring, a nozzle valve body and a nozzle locking nut are included. The control valve rod is driven by the giant magnetostrictive rod to enable the ball valve to mo